Time-frequency block cancellation

Abstract

An apparatus, a method, a system, and a computer-readable medium are disclosed. In one aspect, a wireless communication method is disclosed. The method includes the step of receiving an uplink cancellation indication from a network node at a wireless terminal. The method further includes the step of determining, at the wireless terminal, the allocation of a reference uplink resource comprising a plurality of uplink time-frequency resources; and the step of determining, by the wireless terminal, one or more of the plurality of uplink time-frequency resources to be canceled according to the uplink cancellation indication. The method further includes the step of canceling an uplink transmission through one or more of the determined uplink time-frequency resources by the wireless terminal based on the uplink cancellation indication.

Description

Technology Field

[0001] The present disclosure generally relates to digital wireless communication. Background Technology

[0002] Mobile communication technology is driving the world toward an increasingly connected and networked society. Compared to existing wireless networks, next-generation systems and wireless communication technologies will need to support a much wider range of use case characteristics and provide flexibility for a more complex and sophisticated range of access requirements.

[0003] LTE (Long-Term Evolution) is a standard for wireless communication for mobile devices and data terminals developed by the 3GPP (3rd Generation Partnership Project). LTE-A (LTE Advanced) is a wireless communication standard that enhances the LTE standard. The 5th generation wireless system, known as 5G, is dedicated to advancing the LTE and LTE-A wireless standards and supporting higher data speeds, a large number of connections, ultra-low latency, high reliability, and other new business demands.

[0004] An apparatus, a method, a system, and a computer-readable medium are disclosed. In one aspect, a wireless communication method is disclosed. The method comprises receiving an uplink cancellation indication from a network node at a wireless terminal. The method further comprises determining an allocation of reference uplink resources including a plurality of uplink time-frequency resources at the wireless terminal; and determining, by the wireless terminal, one or more of the plurality of uplink time-frequency resources to be canceled according to the uplink cancellation indication. The method further comprises canceling an uplink transmission through one or more of the determined uplink time-frequency resources by the wireless terminal based on the uplink cancellation indication.

[0005] In another aspect, the wireless communication method comprises determining, by a network node, one or more of a plurality of uplink time-frequency resources to cancel. The method further comprises sending an uplink cancellation indication from the network node to a wireless terminal.

[0006] The above and other aspects and their implementations are described in more detail in the drawings, detailed description, and claims. Brief explanation of the drawing

[0007] FIG. 1 illustrates an example of a time-frequency domain resource divided into seven time blocks and four frequency blocks corresponding to an exemplary reference uplink resource (RUR) according to some exemplary embodiments. FIG. 2 illustrates an example of a one-dimensional (1D) bitmap representing a time-frequency resource according to some exemplary embodiments. FIG. 3 illustrates a two-dimensional (2D) bitmap representing time-frequency resources according to some exemplary embodiments. FIG. 4 illustrates an example of a 2D time-frequency bitmap according to a time-domain 1D bitmap according to some exemplary embodiments. FIG. 5 illustrates an exemplary drawing of a UE having a weak processing capability for determining RUR according to some exemplary embodiments. FIG. 6 illustrates an exemplary drawing of a UE having strong processing capabilities for determining RUR according to some exemplary embodiments. FIG. 7 illustrates exemplary drawings of UEs having different processing capabilities for determining RUR according to some exemplary embodiments. FIG. 8 illustrates an exemplary diagram of determining RUR when UEs having different processing capabilities receive the same downlink control information (DCI) according to some exemplary embodiments. FIG. 9 illustrates the first DCI and the first and second RURs according to some exemplary embodiments. FIG. 10 illustrates a process according to some exemplary embodiments. FIG. 11 illustrates a device according to some exemplary embodiments. Specific details for implementing the invention

[0008] Section titles are used for convenience of understanding in this document only and do not limit the scope of the embodiments to the sections in which they are described. Additionally, while the embodiments are described in relation to 5G examples, the disclosed technology may be applied to wireless systems using protocols other than 5G or 3GPP protocols.

[0009] The 5th generation (5G) mobile communication system enables various application scenarios including eMBB (Enhanced Mobile Broadband), URLLC (Ultra-Reliable Low Latency Communication), and mMTC (Massive Machine Type of Communication).

[0010] For URLLC used in industrial automation, intelligent transmission, remote control, smart grids, and virtual reality, there are often very strict requirements for end-to-end latency, such as 1ms or 0.5ms. To meet these requirements, network nodes must schedule resources for transmission at the time traffic arrives. However, user equipment (UE) or wireless devices may have another physical channel in progress for eMBB traffic to transmit or receive. In this case, the processing timelines for the two channels of traffic may overlap, whereas the UE may not have the ability to process two overlapping channels simultaneously for transmission or reception in a given serving cell.

[0011] To ensure ultra-high reliability of the URLLC service and ultra-low latency of transmission, when the URLLC uplink service receives data, the data must be sent as quickly as possible over the allocated transmission resources, but the resources may already be allocated to another uplink service (e.g., eMBB uplink service). When the URLLC service preempts a portion of the resources allocated for transmission, the base station sends Downlink Control Information (DCI) to the User Equipment (UE) being cancelled, and the UE determines uplink cancellation indication information through the DCI (uplink). The uplink cancellation indication (UL CI) subsequently determines the resources being cancelled. A plurality of indication methods are disclosed for indicating a reference uplink resource (RUR) that is divided into time-frequency resource blocks. Each time-frequency resource block of the RUR is indicated in a 2D bitmap or a 1D bitmap in the time domain. A 1D bitmap can be configured in the frequency domain to indicate that a time-frequency 2D resource is occupied by the bitmap, or a 1D bitmap is configured for the time domain of the RUR, and the frequency domain resource is indicated according to the occupancy of the time domain resource. The URLLC service has defects in certain arrival scenarios. Additionally, if there are UEs with different processing capabilities in a cell, the understanding of the RUR by UEs with different capabilities may not align.

[0012] When the communication system commands the URLLC service to preempt another service with lower latency requirements, currently the resource representation method cannot be flexibly selected, and UEs with different processing capabilities cannot determine the RUR.

[0013] introduction

[0014] The technical problem to be solved is to represent resources including Reference Uplink Resources (RUR) and Canceled Uplink Resources, and to overcome the problem of coordinating Canceled Uplink Resources across different UEs with different capabilities.

[0015] According to some exemplary embodiments, when a UE receives a DCI sent by a base station, the UE cancels the uplink transmission to the corresponding resource in the RUR according to the UL CI of the DCI bearer.

[0016] In some exemplary embodiments, there are methods for indicating candidate resources of type N, such as RUR and cancelled resources. For example, refer to Examples 1 and 2 below. Various indication methods, including the following, are described below:

[0017] 1) Explicitly distinguish N display methods using a distinguishing bit;

[0018] 2) Distinguish N indication methods by scrambling the DCI's CRC (Cyclic Redundancy Check) bits with different Radio Network Temporary Identifiers (RNTI);

[0019] 3) The N marking method is implicitly distinguished by constructing different search spaces (SS) for DCI.

[0020] The candidate resource representation method further includes the following: 1) the time domain of the time-frequency resource is represented by a 1D bitmap, and the frequency domain of the time-frequency resource is represented by a 1D bitmap; 2) the time domain of the time-frequency resource is represented by a SLIV, and the frequency domain of the time-frequency resource is represented by a SLIV; 3) the time-frequency resource is represented by a 2D bitmap; 4) the time domain of the time-frequency resource is represented by a 1D bitmap, and by a time domain occasion representation represented by the time domain 1D bitmap, wherein the time-frequency resource corresponding to the time domain occasion is represented by a 2D bitmap; 5) the time domain of the time-frequency resource is represented by a 1D bitmap, and the frequency domain of the time-frequency resource is represented by a SLIV; 6) The time domain of the time-frequency resource is represented by SLIV, and the frequency domain of the time-frequency resource is represented by a 1D bitmap.

[0021] Another method of representing candidates is as follows (for example, see Example 3 below): The time domain of time-frequency resources is represented by a 1D bitmap, and time-domain resources corresponding to time-domain opportunities are represented by a 2D bitmap according to the time-domain representation represented by the time-domain 1D bitmap. Additionally, the time-domain 1D bitmap can determine the number of opportunities m represented in RUR. The remaining time-frequency representation resources are determined according to the value of m and the total cost Q of the time-frequency representation, and the 2D bitmap is further determined according to the remaining time-frequency resources to represent the time-frequency resources corresponding to the represented time-domain opportunities.

[0022] In some exemplary embodiments, the base station sends a DCI to the UE, the DCI carries a UL CI, and the UE cancels the uplink transmission based on the UL CI. The UE includes a first UE with weak signaling processing capability and a second UE with strong signaling processing capability, and DCI decoding is completed after the first UE X1 time domain symbol is predefined. The X2 time domain symbol completes DCI decoding, where X1≥N and X2≤N. The value of N is a UE capability standard predefined by the protocol.

[0023] The DCI sent to the UE by the base station includes a first DCI and a second DCI, the first UE can receive the first DCI and the second DCI, and the second UE can receive the first DCI and the second DCI. For example, refer to Example 4 below.

[0024] In some exemplary embodiments, two methods for the first UE to determine the RUR and update the CI indication information include the following:

[0025] Method 1: The first UE determines the start time of the RUR based on where the first DCI transmission ends. At this time, the resource indication information of the first UE is updated to the first UL CI, and the uplink transmission in the first RUR is canceled according to the first UL CI to ensure the transmission of a higher priority service.

[0026] Method 2: The first UE determines the start time of the RUR based on the location where the second DCI transmission ends. At this time, the resource indication information of the first UE is updated according to the second UL CI. Specifically, the information indicating the third RUR in the first UE is updated with the information indicating the third RUR in the second UL CI.

[0027] In some exemplary embodiments, two methods for the second UE to determine the RUR and update the CI indication information include the following:

[0028] Method 1: The second UE determines the start time of the RUR based on where the first DCI transmission ends. At this time, the resource indication information of the second UE is updated to the first UL CI, and the uplink transmission in the first RUR is canceled according to the first UL CI to ensure the transmission of a higher priority service.

[0029] Method 2: The second UE determines the start time of the RUR based on the location where the second DCI transmission ends. At this time, the resource indication information of the second UE is updated according to the second UL CI, and specifically, the information indicating the third RUR in the second UE is updated with information corresponding to the third RUR in the second UL CI.

[0030] The DCI sent to the UE by the base station includes a first DCI and a second DCI. The first UE can receive only the first DCI, and the second UE can receive only the second DCI. For example, refer to Example 5 below.

[0031] In some exemplary embodiments, a method for determining RUR by a first UE and updating CI indication information is as follows:

[0032] The first UE determines the start time of the RUR based on where the first DCI transmission ends. At this time, the resource indication information of the first UE is updated to the first UL CI, and the uplink transmission in the first RUR is canceled according to the first UL CI to ensure the transmission of a higher priority service.

[0033] There are two methods for the second UE to determine the RUR and update the CI indication information, including the following:

[0034] The second UE determines the start time of the RUR based on where the second DCI transmission ends. At this time, the resource indication information of the second UE is updated to the second UL CI, and the uplink transmission in the second RUR is canceled according to the second UL CI to ensure the transmission of a higher priority service.

[0035] The base station sends a DCI to the UE, where the first UE and the second UE can receive the DCI, and the UL CI of the DCI bearer is the sum of the first UL CI and the second UL CI. The first UL CI indicates the resource preempted by the first UE, and the second UL CI indicates the resource preempted by the second UE. Also, refer to Example 6 below.

[0036] In some exemplary embodiments, a method for determining RUR by a first UE is as follows:

[0037] The first UE determines the start of the RUR based on the location where the DCI transmission ends. At this time, the first UE may cancel its transmission in the first RUR to ensure the transmission of a higher priority service.

[0038] In some exemplary embodiments, the method for determining RUR by the second UE is as follows:

[0039] The second UE determines the start of the RUR based on the location where the DCI transmission ends. At this time, the second UE may cancel its transmission in the second RUR to ensure the transmission of a higher priority service.

[0040] Exemplary Examples

[0041] Example 1

[0042] In this embodiment, a method for a base station to select a resource display method by distinguishing domains is described below.

[0043] In this embodiment, the time-frequency resource region to be displayed is referred to as RUR. RUR is preferably one or more physical resource blocks (RB) or one or more physical resource block groups (RBG) in the frequency domain and is determined by a predefined or semi-static configuration method. RUR is greater than or equal to the monitoring interval of resource display signaling in the time domain and is determined by a predefined or semi-static configuration method. RUR is divided into a plurality of time domain opportunities, each opportunity being one or more time domain symbols. For example, as illustrated in FIG. 1, RUR is divided into 7 time domain opportunities in the time domain, the real-time domain size is 7, and the part bandwidth (BWP) in the frequency domain is divided into 4 parts, i.e., the frequency domain size. For example, the time-frequency resource to be displayed is a time-frequency resource block displayed by (O2, F2) and (O4, F0). Candidate display methods for RUR include at least the following six methods:

[0044] Method 1: The time domain of a time-frequency resource is a 1D bitmap A 1×M It is represented by, where M is the time domain size. The frequency domain of a time-frequency resource is a 1D bitmap B 1×N It is indicated by, where N is the frequency domain size. The 1D bitmap is determined by a predefined or upper-layer signaling configuration or physical layer signaling representation. As illustrated in FIG. 2, the representation resources are exemplified in FIG. 1, M=7, N=4, then A 1×M =(0010100), B 1×N=(1010). When the value in the 1D bitmap is 1, it means that the time domain or frequency domain is displayed. And when the value in the 1D bitmap is 0, it means that the time domain or frequency domain is not displayed.

[0045] Method 2: The time domain of a time-frequency resource is indicated by a start and length indicator value (SLIV), and the frequency domain of the time-frequency resource is indicated by the SLIV. The SLIV indication method is such that the SLIV value represents the starting position and duration of the resource. The SLIV is determined by a predefined or upper-layer signaling configuration or physical layer signaling indication.

[0046] Method 3: Predetermine the time-frequency pattern of the time-frequency resource. The time-frequency pattern is divided into multiple time-frequency resource blocks, and 2D bitmap C M×N It is indicated by, where M is the time domain size of the 2D bitmap and N is the frequency domain size of the 2D bitmap. The 2D bitmap is determined by a predefined or upper-layer signaling configuration or physical layer signaling representation. As shown in FIG. 3, M=7, N=4, then

[0047] Equation 1

[0048] When the value of the 2D bitmap is 1, the time-frequency resource is displayed. And when the value of the 2D bitmap is 0, the resource in the time-frequency domain is not displayed.

[0049] Method 4: The time domain of a time-frequency resource is a 1D bitmap A 1×M It is represented by, where M is the time domain size. According to a time domain 1D bitmap, if m time domain opportunities are represented, the time-frequency resource corresponding to the time domain opportunities is a 2D bitmap C m×NIt is indicated by, where N is the frequency domain size in the 2D bitmap, which is determined by a predetermined or upper-layer signaling configuration or physical layer signaling representation, or by the remaining representation resource q=QM, where Q is the total cost of the time-frequency representation. As shown in FIG. 4, M=7, m=2, N=8, then A 1×M =(0010100) can be constructed.

[0050] Equation 2

[0051] A value of 1 for 1D bitmaps and 2D bitmaps indicates that the resource is displayed, and 0 indicates that the resource is not displayed.

[0052] Method 5: The time domain of a time-frequency resource is a 1D bitmap A 1×M It is represented by, where M is the time domain size. The frequency domain of a time-frequency resource is represented by a SLIV. The SLIV representation method is such that the SLIV value represents the starting position and duration of the resource. 1D bitmaps and SLIVs are represented by physical layer signaling or configured by upper layer signaling.

[0053] Method 6: The time domain of a time-frequency resource is represented by a SLIV, and the SLIV representation method is such that the SLIV value represents the starting position and duration of the resource. The frequency domain of the time-frequency resource is a 1D bitmap B 1×N It is represented by, and N is the frequency domain size. 1D bitmaps and SLIVs are represented by physical layer signaling or configured by upper layer signaling.

[0054] The method of displaying the candidate is not limited to the above six display methods.

[0055] Two display methods are selected from the six candidate methods or other display methods by a predefined or upper-layer signaling configuration and are recorded as Method A and Method B. A base station determines one of Method A and Method B as an RUR display method, and a method for determining the RUR display method by the base station includes at least one of the following:

[0056] Method 1: Explicitly distinguishing between two representation methods by 1 bit. The base station introduces a distinction domain containing a 1-bit distinction bit. When the distinction bit value is 0, Method A is selected as the representation method of RUR, and when the distinction bit value is 1, Method B is selected as the representation method of RUR.

[0057] The distinguish bit can be indicated by physical layer signaling or configured by upper layer signaling. Specifically, the distinguish bit value is set according to the situation in which time domain opportunities in RUR are actually occupied. A predefined or upper layer signaling constitutes a threshold L, where L ≤ M. When the number of actual occupied time domain opportunities m > L, the distinguish bit is set to 0, and the number of actual occupied time domain opportunities m<L일 때, 구별 비트는 1로 설정되며; 또는 m> When L, the distinguish bit is set to 0, and m <L일 때, 구별 비트는 1로 설정된다.

[0058] In this embodiment, it is assumed that candidate display method 1 is method A and candidate display method 3 is method B. RUR is exemplified by the definition in FIG. 1. As shown in the method in Table 1, methods 1 and 3 represent frequency domain granularity statistics when the actual time domain opportunity occupancy numbers are different. The setting of L follows the principle of making the frequency domain granularity displayed by the selected display method finer, and L is set to 5. When L < 5, method B is selected, and when L > 5, method A is selected. When L = 5, either method can be selected.

[0059] Method 2: Scrambling the CRC bits of the DCI by different RNTIs implicitly distinguishes two representation methods. A base station divides a number of RNTIs into two groups, A and B, by a predefined or upper-layer signaling configuration, and each RNTI group includes at least one RNTI. When a UE receives a DCI scrambled by an A group RNTI, Method A is determined as the representation method of the RUR. When a UE receives a DCI scrambled by a B group RNTI, Method B is determined as the representation method of the RUR.

[0060] Method 3: Constructs different implicit SS indications by upper-level signaling. The upper-level signaling constitutes two types of SS A and B for DCI. The UE blind-checks the DCI in the two types of SS. If DC is detected in SS A, Method A is selected as the indication method for RUR. If DC is detected in SS B, Method B is selected as the indication method for RUR.

[0061] The base station can flexibly select a display method for indicating RUR according to the distinction domain, which is advantageous for indicating total resource utilization and for fully utilizing the benefits of the display method to further reduce error indications and refine the frequency domain indication.

[0062]

[0063] Example 2

[0064] In this embodiment, a method for selecting a resource display method by distinguishing domains is described by a base station.

[0065] In this embodiment, RUR is preferably one or more RBs or one or more RBGs in the frequency domain and is determined by a predefined or semi-static configuration method. RUR is greater than or equal to the monitoring interval of resource indication signaling in the time domain and is determined by a predefined or semi-static configuration method. RUR is divided into a plurality of time domain opportunities, each opportunity being one or more time domain symbols. Candidate indication methods for RUR include the six indication methods described in Example 1 and other indication methods.

[0066] Methods A, B, and C are selected from the six candidate methods or other methods described in Example 1 by a predefined or upper-layer signaling configuration method. A base station selects one of the three preceding methods as an RUR indication method according to a distinguishing domain, and a method for distinguishing between Method A and Method B by the base station includes at least one of the following:

[0067] Method 1: Explicitly distinguishing three display methods by 2 bits. The base station introduces a distinguishing domain containing 2 distinguishing bits. For example, when the bit value is 00, Method A may be selected as the RUR display method, when the bit value is 01, Method B may be selected as the RUR display method, and when the bit value is 11, Method C may be selected as the RUR display method.

[0068] The distinguish bit can be indicated by physical layer signaling or configured by upper layer signaling. Specifically, the distinguish bit value is set according to the situation in which it is actually occupied by time-domain opportunities in RUR. Predefined or upper layer signaling constitutes two thresholds L1 and L2, and L1 <L2 및 L2≤M이다. 실제로 점유된 시간 도메인 기회 수 m≤L1일 때, 구별 비트는 00으로 설정되고, L1<m≤L2일 때, 구별 비트 01로 설정되고, m> When it is L2, the distinguish bit is set to 10; or m <L1일 때, 구별 비트는 00으로 설정되고, L1≤m<L2일 때, 구별 비트는 01로 설정되고, m≥L2일 때, 구별 비트는 10으로 설정된다.

[0069] Method 2: Scrambling the CRC bits of the DCI by different RNTIs implicitly distinguishes three representation methods. The RNTIs are divided into three groups, A, B, and C, by a predefined or upper-level signaling configuration, and each RNTI group includes at least one RNTI. The UE receives the DCI scrambled by the A group RNTI and determines selection method A as the representation method for the RUR. If the UE receives the DCI scrambled by the B group RNTI, it determines selection method B as the representation method for the RUR. The UE receives the DCI scrambled by the C group RNTI and determines selection method C as the representation method for the RUR.

[0070] Method 3: Different implicit SS indications are configured by upper-level signaling. The upper-level signaling configures three types of SS A, B, and C for DCI. The UE blind-checks DCI in the SS. If DCI is detected in SS A, Method A is selected as the indication method for RUR. If DCI is detected in SS B, Method B is selected as the indication method for RUR. And if DCI is detected in SS C, Method C is selected as the indication method for RUR.

[0071] The aforementioned implementation may also extend the selection of the P indication method. For the aforementioned method 1, the predefined or RRC signaling is the P-1 threshold Constitutes, and the distinguishing bit is It is a bit, and indicates at least a P state; regarding the above-described method 2, the base station divides a number of RNTIs into a predefined or upper-layer signaling configuration. In the P group, the P state is indicated. Regarding the above-described method 3, the upper-layer signaling configures a P-type SS for the DCI, and the UE blind-checks the DCI in the P-configured SS to indicate the P state.

[0072] The base station can flexibly select a display method for indicating RUR according to the distinction domain, which is advantageous for indicating total resource utilization and for fully utilizing the benefits of the display method to further reduce error indications and refine frequency domain indications.

[0073] Example 3

[0074] This embodiment includes a method for a base station to indicate time-frequency resource occupancy to a terminal by using a different domain selection resource indication method.

[0075] In this embodiment, RUR is preferably one or more RBs or one or more RGBs in the frequency domain and is determined by a predefined or semi-static configuration method. RUR is greater than or equal to the monitoring interval of resource indication signaling in the time domain and is determined by a predefined or semi-static configuration method. RUR is divided into M time domain opportunities, each opportunity being one or more time domain symbols. Candidate indication method 4 in Example 1 determines the number of opportunities indicated in RUR by a time domain 1D bitmap. The remaining time-frequency indication resources are determined according to the value of m and the total time-frequency indication cost Q, and a 2D bitmap indicating the time-frequency resources corresponding to the indicated time domain opportunities is determined. Specifically, the method for primarily determining the 2D bitmap has the following two methods:

[0076] Method 1: The time domain size of the 2D bitmap is equal to m, and the frequency domain size N of the 2D bitmap is represented by a predefined or upper-layer signaling configuration or by a physical layer signaling. For example, when m=1, N can be a predefined or upper-layer signaling configuration or the physical layer signaling represents 16, and when m=2, N can be a predefined or upper-layer signaling configuration or the physical layer signaling represents 8.

[0077] Method 2: The total resource overhead indicated by time-frequency resources is set to Q by predefined or physical layer or upper layer signaling, and the available bit resources for a 2D bitmap are And, the number of displayed opportunities is determined according to the 1D bitmap. To ensure that the frequency domain granularity corresponding to each displayed time domain opportunity is constant, a method for determining the frequency domain size N of the 2D bitmap includes at least one of the following cases:

[0078] (a) q can be divided by n, and And when the time domain size of the 2D bitmap is m, the frequency domain size N of the 2D bitmap is lim;

[0079] (b) q cannot be divided by m and And when the time domain size of the 2D bitmap is m, the frequency domain size N of the 2D bitmap is lim;

[0080] (c) Occupancy ignore parameter k(k <m)를 설정하고, 기회의 표시된 수를 m-k로 업데이트하며, 즉 2D 비트맵의 시간 도메인 크기가 m-k이며, 그 다음 방법 (a)(b)에 따라 2D 비트맵의 주파수 도메인 크기 Determines. The parameter k can be determined by a predefined method, or indicated by a physical layer indication, or configured by upper layer signaling.

[0081] In this embodiment, it is possible to determine a 2D bitmap of time-frequency resources corresponding to the displayed time domain, and the base station can be flexible in dividing the frequency domain display granularity for the time domain, which facilitates the refinement of frequency domain resources.

[0082] Example 4

[0083] The methods described in Examples 1 through 3 can be established based on the fact that RUR has been determined. In this embodiment, a method for determining RUR based on UE capabilities and updating resource indication information is described.

[0084] In this embodiment, the base station sends a first DCI and a second DCI, wherein the first DCI carries a first UL CI and the second DCI carries a second UL CI. Specifically, the first UL CI indicates a first RUR resource occupancy and the second UL CI indicates a second RUR resource occupancy. The first UE and the second UE may have uplink transmissions. The signaling processing capability of the first UE is weaker, and when the first UE receives the DCI, the UE completes DCI decoding and resource cancellation after X1 time domain symbols. The signaling processing capability of the second UE is stronger, and when the second UE receives the DCI, the UE completes DCI decoding and resource cancellation after X2 time domain symbols. X1 ≥ W, X2 ≤ W. W is a UE capability standard predefined by the protocol. The first UE can receive the first DCI and the second DCI, and the second UE can receive the first DCI and the second DCI.

[0085] There are two methods for the first UE to determine the RUR and update the CI indication information as follows:

[0086] Method 1: The first UE determines the start time of the RUR based on the time the first UE receives the first DCI. The start time of the first RUR is X1 symbol after the end time domain symbol of the first DCI, and X1 ≥ W. The length of the first RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the resource indication information of the first UE is updated to the first UL CI, and uplink transmission in the first RUR is canceled according to the resource indication information to ensure transmission of a higher priority.

[0087] Method 2: The first UE determines the start time of the RUR based on the time the first UE receives the second DCI. The start time of the second RUR is X2 symbols after the end time domain symbol of the first DCI, and X2 ≤ W. The length of the second RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the resource indication information of the first UE is updated according to the second UL CI. Specifically, the information indicating the third RUR in the first UE is updated with the information corresponding to the third RUR in the second UL CI. The start time of the third RUR is X1 symbols after the last time domain symbol of the second DCI. When the last symbol of the first RUR is before the last symbol of the second RUR, the last symbol of the third RUR is the last symbol of the first RUR end point, and when the last symbol of the second RUR is before the last symbol of the first RUR, the third RUR end point is the same as the last symbol of the second RUR.

[0088] Additionally, as illustrated in FIG. 5, when the first UE receives the first DCI and the second DCI and the first DCI arrives before the second DCI, the first UE first determines resource indication information according to the first UL CI. Then, the resource indication information is updated according to the second UL CI, and the updated part is information indicating the third RUR. Assuming that the lengths of the first RUR and the second RUR are 7 time domain opportunities, the length of the third RUR is 3 time domain opportunities. The time domain bitmap of the first UL CI is is, and bits 4-6 represent the 3rd RUR, and the time domain display bitmap of the 2nd UL CI is And, the last three bits indicate the third RUR. After receiving the second UL CI, the first UE updates the indication information of the third RUR, maintains the indication information of other resources, and finally the new UL CI Acquires. The bold text and underlined parts are the indication of the 3rd RUR.

[0089] There are two methods for the second UE to determine the RUR and update the CI indication information, including the following:

[0090] Method 1: The second UE determines the start time of the RUR based on the time the second UE receives the first DCI. The start time of the first RUR is X1 symbol after the end time domain symbol of the first DCI, and X1 ≥ W. The length of the first RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the resource indication information of the second UE is updated to the first UL CI, and uplink transmission in the first RUR is canceled according to the resource indication information to ensure transmission of a higher priority.

[0091] Method 2: The second UE determines the start time of the RUR based on the time at which the second UE can receive the second DCI. The start time of the second RUR is X2 symbols after the end time domain symbol of the second DCI, and X2 ≤ W. The length of the second RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the resource indication information of the second UE is updated according to the second UL CI, and specifically, the information indicating the third RUR in the second UE is updated with the information corresponding to the third RUR in the second UL CI. When the start time of the first RUR is after the start time of the second RUR, the start time of the third RUR is the start time of the first RUR, and when the start time of the second RUR is after the start time of the first RUR, the start time of the third RUR is the start time of the second RUR. When the last time domain symbol of the first RUR is after the last time domain symbol of the second RUR, the last time domain symbol of the third RUR is the last time domain symbol of the second RUR, and when the last time domain symbol of the second RUR is after the last time domain symbol of the first RUR, the last time domain symbol of the third RUR is the last time domain symbol of the first RUR.

[0092] Additionally, as illustrated in FIG. 6, when the second UE receives the first DCI and the second DCI and the first DCI arrives before the second DCI, the second UE first determines resource indication information according to the first UL CI. Then, the resource indication information is updated according to the second UL CI, and the updated part is information indicating the third RUR. Assuming that the lengths of the first RUR and the second RUR are 7 time domain opportunities, the length of the third RUR is 6 time domain opportunities, and the time domain bitmap of the first UL CI is and, where bits 1-6 represent the 3rd RUR, and the time domain bitmap of the 2nd UL CI is ..., where bits 2–7 represent the 3rd RUR. The representation information of the 3rd RUR is updated, the representation information of other resources is reserved, and finally, the new 8-bit CI is is. The bold text and underlined parts are the indication of the 3rd RUR.

[0093] Example 5

[0094] The methods described in Examples 1 to 3 can be established for the determined RUR. In this embodiment, a method for determining RUR based specifically on UE capability is described.

[0095] In this embodiment, the base station sends a first DCI and a second DCI, wherein the first DCI carries a first UL CI and the second DCI carries a second UL CI. The first UE and the second UE may have uplink transmissions. The signaling processing capability of the first UE is weaker, and when the first UE receives the DCI, the UE completes DCI decoding and resource cancellation after X1 time domain symbols. The signaling processing capability of the second UE is stronger, and when the second UE receives the DCI, the UE completes DCI decoding and resource cancellation after X2 time domain symbols. X1 ≥ W, X2 ≤ W. W is a UE capability standard predefined by the protocol. The first UE can receive the first DCI, and the second UE can receive the second DCI.

[0096] The method for determining RUR by the first UE is as follows:

[0097] The first UE determines the start time of the RUR based on the time the first UE receives the first DCI. As illustrated in FIG. 7, the first UE may receive the first DCI, and the start time of the first RUR is the X1 symbol after the end time domain symbol of the first DCI, where X1 ≥ W. The length of the first RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the first UE may cancel its transmission in the first RUR to ensure a higher priority transmission.

[0098] The method for determining RUR by the second UE is as follows:

[0099] The second UE determines the start time of the RUR based on the time when the second UE receives the second DCI. As illustrated in FIG. 7, the second UE may receive the second DCI, and the start time of the second RUR is X2 symbols after the end time domain symbol of the first DCI, where X2 ≤ W. The length of the second RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the second UE may cancel its transmission in the second RUR to ensure a higher priority transmission.

[0100] Example 6

[0101] The methods described in Examples 1 to 3 can be established for the determined RUR. In this embodiment, a method for determining RUR based specifically on UE capability is described.

[0102] The implementation of the technical solution will be described in more detail below with reference to the attached drawings:

[0103] In this embodiment, the base station sends a DCI, wherein the DCI carries an UL CI. The first UE and the second UE may have uplink transmissions. The signaling processing capability of the first UE is weaker, and when the first UE receives the DCI, the UE completes DCI decoding and resource cancellation after X1 time domain symbols. The signaling processing capability of the second UE is stronger, and when the second UE receives the DCI, the UE completes DCI decoding and resource cancellation after X2 time domain symbols. X1 ≥ W, X2 ≤ W. The first UE and the second UE may receive the DCI.

[0104] The method for determining RUR by the first UE is as follows:

[0105] The first UE determines the start time of the RUR based on the time the first UE receives the DCI. As illustrated in FIG. 8, the first UE may receive the DCI. The start time of the first RUR is the X1 symbol after the end time domain symbol of the DCI, where X1 ≥ W. The length of the first RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the first UE may cancel its transmission in the first RUR to ensure a higher priority transmission.

[0106] The method for determining RUR by the second UE is as follows:

[0107] The second UE determines the start time of the RUR based on the time when the first UE receives the DCI. As illustrated in FIG. 8, the second UE may receive the DCI. The start time of the second RUR is X2 symbols after the end time domain symbol of the DCI, where X2 ≤ W. The length of the second RUR is determined by a predefined or upper layer signaling configuration or physical layer signaling indication. At this time, the second UE may cancel its transmission in the second RUR to ensure a higher priority transmission.

[0108] Additionally, as shown in FIG. 8, the UL CI of the DCI is used to display the merged information of the first UE and the second UE. The display information of the first UE is 0110000, and the display information of the second UE is 1000000. The UL CI display information of the DCI is the union of the two pieces of display information, which is 1110000.

[0109] Example 7

[0110] The methods described in Examples 1 to 3 can be established for the determined RUR. In this embodiment, a method for determining RUR based specifically on UE capability is described.

[0111] In this embodiment, the base station sends a DCI, wherein the DCI carries an UL CI. The first UE and the second UE may have uplink transmissions. The signaling processing capability of the first UE is weaker, and when the first UE receives the DCI, the UE completes DCI decoding and resource cancellation after X1 time domain symbols. The signaling processing capability of the second UE is stronger, and when the second UE receives the DCI, the UE completes DCI decoding and resource cancellation after X2 time domain symbols. X1 ≥ W. At this time, the first UE and the second UE may receive the DCI.

[0112] The method for determining RUR by the first UE is as follows:

[0113] The first UE determines the start time of the RUR based on the time the first UE receives the DCI. As illustrated in FIG. 9, the first UE may receive the DCI. The start time of the first RUR is the X1 symbol after the end time domain symbol of the DCI, and X1 ≥ W. At this time, the first UE may cancel its transmission in the first RUR to ensure a transmission of a higher priority.

[0114] The method for determining RUR by the second UE is as follows:

[0115] The second UE determines the start time of the RUR based on the time when the first UE receives the DCI. As illustrated in FIG. 9, the second UE can receive the DCI. The start time of the second RUR is the X1 symbol after the end time domain symbol of the DCI, and X1 ≤ W. At this time, the second UE may cancel its transmission in the second RUR to ensure a transmission of a higher priority.

[0116] Additionally, if the lengths of the first RUR and the second RUR are the same, the first RUR and the second RUR are the same RUR. The first UE and the second UE have the same understanding of the UL CI. If the lengths of the first RUR and the second RUR are not the same, the first RUR and the second RUR are not the same RUR. The understanding of the UL CI is regarding the length of the first RUR and the second RUR. For example, the first RUR size is 5, the second RUR size is 7, the UL CI indicates that the bitmap is 0110101, the UL CI understood by the first UE is 01101, and the UL CI understood by the second UE is 0110101.

[0117] FIG. 10 illustrates a process (1000) according to some exemplary embodiments. In 1010, the process includes receiving an uplink cancellation indication from a network node at a wireless terminal. In 1020, the process includes determining the allocation of a reference uplink resource including a plurality of uplink time-frequency resources at the wireless terminal. In 1030, the process includes determining, by the wireless terminal, one or more of the plurality of uplink time-frequency resources to be canceled according to the uplink cancellation indication. In 1040, the process includes canceling an uplink transmission through one or more of the determined uplink time-frequency resources by the wireless terminal based on the uplink cancellation indication.

[0118] In another exemplary implementation, the method comprises receiving an uplink cancellation indication from a network node at a wireless terminal. The method further comprises determining by the wireless terminal the allocation of reference uplink resources including a plurality of uplink time-frequency resources, and determining by the wireless terminal one or more of the plurality of uplink time-frequency resources to be canceled according to the uplink cancellation indication. The method further comprises canceling an uplink transmission through one or more of the determined reference uplink resources based on the uplink cancellation indication by the wireless terminal, and performing a transmission of one or more of the reference uplink resources not included in the uplink cancellation indication.

[0119] FIG. 11 illustrates a block diagram (1100) representing a portion of a wireless station. A wireless station (1100), such as a network node, a base station, or a wireless device (or UE), may include one or more processors (1110), such as a microprocessor, that implement one or more of the wireless technologies presented in this document. A wireless station (1100) may include a transmitter electronic device (1115) for sending wireless signals and a receiver electronic device (1120) for receiving them through one or more communication interfaces, such as an antenna. A wireless station (1100) may include other communication interfaces for transmitting and receiving data. A wireless station (1100) may include one or more memories (1105) configured to store information, such as data and / or instructions. In some implementations, the processor electronic device (1110) may include at least a portion of the transceiver electronic device (1120 / 1115). In some embodiments, at least a portion of the disclosed technology, module, or function is implemented using a wireless station (1100).

[0120] Some embodiments may preferably implement one or more of the following solutions listed in the form of clauses. The following clauses are supported by and further described in the above examples and throughout this specification. As used in the clauses and claims below, a wireless terminal may be any other wireless terminal including a fixed node such as a user device, a mobile station, or a base station. A network node includes a next-generation node B (gNB), an eNB, or a base station including any other device performing as a base station. A resource range may refer to a time-frequency resource or a range of blocks.

[0121] Clause 1. A wireless communication method comprising: receiving an uplink cancellation indication from a network node at a wireless terminal; determining, by the wireless terminal, the allocation of a reference uplink resource including a plurality of uplink time-frequency resources; determining, by the wireless terminal, one or more of the plurality of uplink time-frequency resources to be canceled according to the uplink cancellation indication; and canceling an uplink transmission through one or more of the determined uplink time-frequency resources by the wireless terminal based on the uplink cancellation indication.

[0122] Clause 2. A wireless communication method according to Clause 1, further comprising the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods in the wireless terminal, wherein the uplink cancellation indication method is used to determine one or more of the plurality of uplink time-frequency resources for cancellation.

[0123] Clause 3. A wireless communication method in which, in Clause 2, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using one or more distinguishing bits.

[0124] Clause 4. A wireless communication method in which, in Clause 2, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using a wireless network temporary identifier (RNTI) different from the wireless terminal for the uplink cancellation indication.

[0125] Clause 5. A wireless communication method in which, in Clause 2, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using different search spaces for the uplink cancellation indication.

[0126] Clause 6. A wireless communication method according to Clause 1, further comprising the step of representing the reference uplink resource in the time domain as a one-dimensional (1D) bitmap and representing the time-frequency domain corresponding to the cancelled time domain resource as a two-dimensional (2D) bitmap.

[0127] Clause 7. A wireless communication method according to Clause 1, further comprising the step of determining the start time of the reference uplink resource after receiving the uplink cancellation indication based on at least the processing capability of the wireless terminal.

[0128] Clause 8. A wireless communication method according to Clause 7, further comprising: a step of determining a first processing time based on a first processing capability; and a step of determining a second processing time based on a second processing capability, wherein the first processing time is longer than the second processing time.

[0129] Clause 9. A wireless communication method according to Clause 8, further comprising the step of receiving the uplink cancellation indication and the second uplink cancellation indication at the wireless terminal.

[0130] Clause 10. A wireless communication method according to Clause 9, further comprising: a step of determining by the wireless terminal that the start time of the reference uplink resource is the first processing time after the last time domain symbol of the uplink cancellation indication; and a step of determining by the wireless terminal that the start time of the second reference uplink resource is the second processing time after the last time domain symbol of the second uplink cancellation indication.

[0131] Clause 11. A wireless communication method according to Clause 8, further comprising: receiving a second uplink cancellation indication from the network node at the wireless terminal; and updating the uplink cancellation indication based on the second uplink cancellation indication.

[0132] Clause 12. A wireless communication method according to Clause 11, wherein the step of updating the uplink cancellation indication based on the second uplink cancellation indication comprises: determining a resource range to be updated in one or more of the plurality of uplink time-frequency resources; and determining that the start time of the resource range is the first processing time after the last time domain symbol of the second uplink cancellation indication and the end time of the resource range is the last time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource.

[0133] Clause 13. A wireless communication method according to Clause 11, wherein the step of updating the uplink cancellation indication based on the second uplink cancellation indication comprises: determining a resource range to be updated in one or more of the plurality of uplink time-frequency resources; and determining that the start time of the resource range is the first time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource and the end time of the resource range is the last time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource.

[0134] Clause 14. A wireless communication method according to Clause 7, further comprising: a step of determining a first processing time based on the first processing capability of a first wireless terminal; and a step of determining a second processing time based on the second processing capability of a second wireless terminal, wherein the first processing time is longer than the second processing time.

[0135] Clause 15. A wireless communication method according to Clause 9, further comprising the step of determining by a second wireless terminal that the start time of the reference uplink resource is the first processing time after the last time domain symbol of the uplink cancellation indication.

[0136] Clause 16. A wireless communication method comprising: determining, by a network node, one or more of a plurality of uplink time-frequency resources to be canceled; and sending an uplink cancellation indication to a wireless terminal by the network node.

[0137] Clause 17. A wireless communication method according to Clause 16, further comprising the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods at the network node, wherein the uplink cancellation indication method is used to determine one or more of the plurality of uplink time-frequency resources to cancel.

[0138] Clause 18. A wireless communication method in which, in Clause 17, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using one or more distinguishing bits.

[0139] Clause 19. A wireless communication method in which, in Clause 17, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using a wireless network temporary identifier (RNTI) different from the wireless terminal for the uplink cancellation indication.

[0140] Clause 20. A wireless communication method in which, in Clause 17, the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using different search spaces for the uplink cancellation indication.

[0141] Clause 21. A wireless communication method according to Clause 1, wherein the uplink cancellation indication is included in the downlink control information (DCI).

[0142] Clause 22. A wireless communication method in which, in Clause 16, the uplink cancellation indication is included in the downlink control information (DCI).

[0143] Clause 23. A device comprising a processor configured to implement a method described in one or more of Clauses 1 through 22.

[0144] Clause 24. A computer program product having code stored therein, wherein, when executed by a processor, the code causes the processor to implement the method described in one or more of Clauses 1 through 22.

[0145] Some of the embodiments described herein are described in the general context of a method or process that may be implemented in one embodiment by a computer program product implemented on a computer-readable medium, which includes computer-executable instructions, such as program code, executed by a computer in a network environment. The computer-readable medium may include removable and non-removable storage devices, including but not limited to ROM (Read Only Memory), RAM (Random Access Memory), CDs (compact discs), DVDs (digital versatile discs), etc. Accordingly, the computer-readable medium may include non-transient storage media. Generally, a program module may include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. Computer- or processor-executable instructions, related data structures, and program modules represent examples of program code for executing the steps of the method disclosed herein. Specific sequences of such executable instructions or related data structures represent examples of corresponding operations for implementing the functions described in such steps or processes.

[0146] Some of the disclosed embodiments may be implemented as devices or modules using hardware circuits, software, or a combination thereof. For example, a hardware circuit implementation may include discrete analog and / or digital components integrated, for example, as part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules may be implemented as Application Specific Integrated Circuit (ASIC) and / or Field Programmable Gate Array (FPGA) devices. Some implementations may additionally or alternatively include a digital signal processor (DSP), which is a specialized microprocessor having an architecture optimized for the operational requirements of digital signal processing associated with the functions disclosed in this application. Similarly, various components or sub-components within each module may be implemented in software, hardware, or firmware. Connections between modules and / or components within modules may be provided using any one of connection methods and media known in the art, including but not limited to communication over the Internet, wired, or wireless networks using suitable protocols.

[0147] Although this specification contains many specific details, they should not be interpreted as a limitation to the scope of the claimed invention or the scope of what may be claimed, but rather as a description of specific features in specific embodiments. Specific features described in this specification in relation to individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in relation to a single embodiment may also be implemented individually or in any suitable subcombination in multiple embodiments. Furthermore, while features may be described above as operating in a specific combination and even as initially claimed, one or more features from the claimed combination may be excluded from the combination in some cases, and the claimed combination may relate to a subcombination or a variation of the subcombination. Likewise, although operations are depicted in a specific order in the drawings, this should not be understood as meaning that these operations must be performed in the specific order depicted or in a sequential order to achieve the desired result, or that all illustrated operations must be performed.

[0148] Only a few implementations and examples are described, and improvements and modifications may be made based on what is described and illustrated in this disclosure.

Claims

Claim 1 A wireless communication method comprises: receiving, from a network node at a wireless terminal, first downlink control information including a first uplink cancellation indication and second downlink control information including a second uplink cancellation indication; determining, by the wireless terminal, a start time of a first reference uplink resource corresponding to the first downlink control information, including a plurality of uplink time-frequency resources based on the location where the first downlink control information ends, and a start time of a second reference uplink resource corresponding to the second downlink control information based on the location where the second downlink control information ends; and determining, by the wireless terminal, one or more of the plurality of uplink time-frequency resources to be canceled according to the first uplink cancellation indication and the second uplink cancellation indication, based on a combination of the first uplink cancellation indication and the second uplink cancellation indication. A wireless communication method comprising the step of canceling uplink transmission through one or more determined uplink time-frequency resources based on at least one of the start time of the first reference uplink resource and the start time of the second reference uplink resource by the wireless terminal. Claim 2 A wireless communication method according to claim 1, further comprising the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods in the wireless terminal, wherein the uplink cancellation indication method is used to determine the one or more uplink time-frequency resources for cancellation. Claim 3 A wireless communication method according to claim 2, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using one or more distinguishing bits. Claim 4 A wireless communication method according to claim 2, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using a radio network temporary identifier (RNTI) different from the wireless terminal. Claim 5 A wireless communication method according to claim 2, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using different search spaces. Claim 6 A wireless communication method according to claim 1, further comprising the step of representing the first reference uplink resource and the second reference uplink resource in the time domain as a one-dimensional (1D) bitmap, and representing the time-frequency domain corresponding to the cancelled time domain resource as a two-dimensional (2D) bitmap. Claim 7 A wireless communication method according to claim 1, wherein the wireless terminal is a first wireless terminal having a first processing capability or a second wireless terminal having a second processing capability, the start time of the first reference uplink resource is determined based on the first processing capability of the first wireless terminal, the start time of the second reference uplink resource is determined based on the second processing capability of the second wireless terminal, and the first processing time based on the first processing capability is longer than the second processing time based on the second processing capability. Claim 8 A wireless communication method according to claim 7, further comprising: a step of determining the first processing time based on the first processing capability; and a step of determining the second processing time based on the second processing capability, wherein the first processing time is longer than the second processing time. Claim 9 delete Claim 10 A wireless communication method according to claim 8, wherein the start time of the first reference uplink resource is the first processing time after the last time domain symbol of the first uplink cancellation indication; and the start time of the second reference uplink resource is the second processing time after the last time domain symbol of the second uplink cancellation indication. Claim 11 A wireless communication method according to claim 8, further comprising the step of updating the first uplink cancellation indication based on the second uplink cancellation indication. Claim 12 A wireless communication method according to claim 11, wherein the step of updating the first uplink cancellation indication based on the second uplink cancellation indication comprises: determining a resource range to be updated in the one or more uplink time-frequency resources; and determining that the start time of the resource range is the first processing time after the last time domain symbol of the second uplink cancellation indication and the end time of the resource range is the last time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource. Claim 13 A wireless communication method according to claim 11, wherein the step of updating the first uplink cancellation indication based on the second uplink cancellation indication comprises: determining a resource range to be updated in the one or more uplink time-frequency resources; and determining that the start time of the resource range is the first time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource and the end time of the resource range is the last time domain symbol of the overlap between the first reference uplink resource and the second reference uplink resource. Claim 14 delete Claim 15 A wireless communication method according to claim 8, wherein the start time of the first reference uplink resource is the first processing time after the last time domain symbol of the first uplink cancellation indication. Claim 16 A wireless communication method comprising: a step of determining, by a network node, one or more of a plurality of uplink time-frequency resources to be canceled in at least one of a first reference uplink resource and a second reference uplink resource; and a step of sending, by the network node, to a wireless terminal, first downlink control information including a first uplink cancellation indicator and second downlink control information including a second uplink cancellation indicator, wherein the start time of the first reference uplink resource corresponding to the first downlink control information is determined based on the position where the first downlink control information ends, and the start time of the second reference uplink resource corresponding to the second downlink control information is determined based on the position where the second downlink control information ends, and one or more of the plurality of uplink time-frequency resources to be canceled are determined according to the first uplink cancellation indicator and the second uplink cancellation indicator, and the step of determining one or more of the plurality of uplink time-frequency resources is based on a combination of the first uplink cancellation indicator and the second uplink cancellation indicator. Claim 17 A wireless communication method according to claim 16, further comprising the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods at the network node, wherein the uplink cancellation indication method is used to determine one or more of the uplink time-frequency resources for cancellation. Claim 18 A wireless communication method according to claim 17, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using one or more distinguishing bits. Claim 19 A wireless communication method according to claim 17, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using a wireless network temporary identifier (RNTI) different from the wireless terminal. Claim 20 A wireless communication method according to claim 17, wherein the step of determining an uplink cancellation indication method from a plurality of predefined cancellation indication methods is performed using different search spaces. Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete

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