System and method for downlink control information transmission

Abstract

A system and method for wireless communication is disclosed herein. In one embodiment, a wireless communication device determines that a first resource indicated by uplink cancellation information overlaps with a second resource. The wireless communication device receives an uplink (UL) grant from a network that schedules a third resource. An end symbol of a first downlink control channel carrying the UL grant is no earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information.

Description

Technical Field

[0001] The present disclosure relates to the field of telecommunications, and in particular to detecting information indicative of preemption of transmission resources. Background Art

[0002] The demand for fifth-generation mobile communication technology (5G) is increasing rapidly. Development is underway to provide enhanced mobile broadband, ultra-high reliability, ultra-low latency transmission, and massive connectivity in 5G systems. Summary of the invention

[0003] The example embodiments disclosed herein are intended to solve problems associated with one or more of the problems presented in the prior art, as well as to provide additional features that will become apparent by reference to the following detailed description when combined with the accompanying drawings. According to various embodiments, example systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and are not restrictive, and it will be apparent to a person of ordinary skill in the art who reads this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0004] In some embodiments, the wireless communication device determines that the first resource indicated by the uplink cancellation information overlaps with the second resource. The wireless communication device receives an uplink (UL) grant scheduling the third resource from the network. The end symbol of the first downlink control channel carrying the UL grant is no earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information.

[0005] In some embodiments, the network transmits uplink cancellation information indicating a first resource to the wireless communication device. The first resource overlaps with a second resource of the wireless communication device. The network transmits a UL grant scheduling a third resource to the wireless communication device. An end symbol of a first downlink control channel carrying the UL grant is no earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information.

[0006] The above and other aspects and embodiments thereof will be described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Various example embodiments of the present solution are described in detail below with reference to the following diagrams or drawings. The drawings are provided for illustrative purposes only and only depict example embodiments of the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered as limiting the breadth, scope or applicability of the present solution. It should be noted that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.

[0008] Figure 1is a schematic diagram showing that physical uplink shared channel (PUSCH) resources are preempted according to some embodiments of the present disclosure;

[0009] Figure 2 is a schematic diagram illustrating a process for canceling an uplink transmission according to some embodiments of the present disclosure;

[0010] Figure 3 is a schematic diagram illustrating an example uplink resource region (RUR) according to some embodiments of the present disclosure;

[0011] Figure 4 is a diagram illustrating a slot structure corresponding to an example configuration 400 of PDCCH monitoring opportunities according to various embodiments;

[0012] Figure 5 is a schematic diagram illustrating an example RUR according to some embodiments of the present disclosure;

[0013] Figure 6 is a schematic diagram illustrating an example RUR according to some embodiments of the present disclosure;

[0014] Figure 7 is a schematic diagram illustrating an example RUR according to some embodiments of the present disclosure;

[0015] Figure 8 is a schematic diagram showing an example RUR according to the first method;

[0016] Fig. 9 is a schematic diagram showing an example RUR according to the third method;

[0017] Fig.10 is a schematic diagram showing an example RUR according to the fourth method;

[0018] Fig.11 is a schematic diagram showing an example RUR according to the fifth method;

[0019] Fig.12 is a schematic diagram showing an example RUR according to the sixth method;

[0020] Fig.13 is a schematic diagram showing an example RUR according to the seventh method;

[0021] Fig.14 is a schematic diagram showing an example RUR according to the eighth method;

[0022] Fig.15 is a schematic diagram showing an example RUR according to the ninth method;

[0023] Fig.16 is a schematic diagram showing an example RUR according to a tenth method;

[0024] Fig.17 is a schematic diagram showing an example RUR according to the eleventh method;

[0025] Fig.18A is a schematic diagram illustrating a method for downlink control information transmission according to some embodiments of the present disclosure.

[0026] Fig.18B is a schematic diagram illustrating a method for downlink control information transmission according to some embodiments of the present disclosure.

[0027] Fig.19A A block diagram illustrating an example base station according to some embodiments of the present disclosure; and

[0028] Fig.19B A block diagram of an example UE according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0029] Various example embodiments of the present solution are described below with reference to the accompanying drawings to enable a person of ordinary skill in the art to make and use the present solution. It is apparent to a person of ordinary skill in the art that, after reading this disclosure, various changes or modifications may be made to the examples described herein without departing from the scope of the present solution. Therefore, the present solution is not limited to the example embodiments and applications described and illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein are merely example approaches. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes may be rearranged while remaining within the scope of the present solution. Therefore, a person of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or behaviors in a sample order, and unless otherwise expressly stated, the present solution is not limited to the specific order or hierarchy presented.

[0030] The development of 5G wireless communication systems aims to achieve higher data communication rates (e.g., in Gbps), a large number of communication links (e.g., 1M / Km2), ultra-low latency (e.g., less than 1ms), higher reliability, and improved energy efficiency (e.g., at least 100 times more efficient than previous systems). In order to achieve these improvements, in wireless communication systems under the 5G standard, different types of services are configured with different priorities according to different requirements and tolerances for latency, reliability, energy efficiency, etc. For example, different types of uplink services with different transmission delay reliability requirements can be transmitted, as well as different priority channels for the same service.

[0031] When different services with different priorities are transmitted in the same cell, in order to provide transmission capacity for high-priority services, transmission resources of low-priority services can be preempted by high-priority services, and transmission of low-priority services using these preempted transmission resources is canceled. This mechanism avoids collisions between low-priority services and high-priority services when using the same transmission resources for transmission. In some cases, a first service with one or more of higher priority, higher reliability, or shorter transmission time can preempt transmission resources of a second service with one or more of lower priority, lower reliability, or longer transmission time.

[0032] In order to minimize the performance impact, preemption indication information needs to be conveyed to the UE whose transmission resources are preempted. The preempted transmission resources may be referred to as "canceled transmission resources". The preemption indication information may be referred to as "cancelation indication information".

[0033] With regard to uplink transmission resource preemption (e.g., uplink service cancellation), indications may be defined for uplink time-frequency domain resources, such as, but not limited to, uplink cancellation indications (UL CI, which may also be referred to as DCI formats 2_4 carried in PDCCH). In order to prevent uplink transmission of the UE, the UE needs to notify the preemption via UL CI before the transmission of the uplink service. Based on this uplink cancellation indication, the uplink transmission of a service with a relatively low priority may be canceled (if not yet transmitted) or stopped (when being transmitted) accordingly, thereby avoiding performance degradation caused by simultaneously transmitting two types of services using the same uplink transmission resource. The embodiments described herein relate to a way in which the network side indicates uplink transmission resource preemption or uplink service cancellation or signals in this manner.

[0034] Figure 1 is a schematic diagram illustrating a process 100 by which PUSCH uplink transmission resources are preempted according to some embodiments of the present disclosure. Figure 1 , process 100 involves UE 102 and base station 104 (e.g., BS, gNB, eNB, etc.). Uplink transmission diagram 130 illustrates uplink activity of UE 102. Downlink transmission diagram 120 illustrates downlink activity of base station 104. Diagrams 120 and 130 illustrate time slots divided in the time domain (represented by the horizontal axis). In some examples, a dimension or axis perpendicular to the time domain axis of each of diagrams 120 and 130 represents frequency, such as but not limited to bandwidth, active uplink bandwidth part (BWP), etc. Frequency is discontinuous in different diagrams 120 and 130.

[0035] UE 102 sends a scheduling request (SR) 132 to base station 104 in the uplink. SR 132 requests uplink transmission resources for an uplink service (referred to as a first uplink service) from base station 104. Examples of the first uplink service include, but are not limited to, an enhanced mobile broadband (eMBB) service. Base station 104 allocates the first uplink transmission resources (e.g., PUSCH 134) to UE 102 through an uplink grant (UL grant) 122. Base station 104 sends UL grant 122 to UE 102 in the downlink to notify UE 102 that UE 102 can use PUSCH 134 to transmit the first uplink service.

[0036] After the UE 102 sends the SR 132 to the base station 104, and after the base station 104 sends the UL grant 122 to the UE 102, the UE 102 sends the SR 112 to the base station 104. The SR 112 requests uplink transmission resources for an uplink service (referred to as a second uplink service) from the base station 104. Examples of the second uplink service include, but are not limited to, an Ultra Reliable Low Latency Communication (URLLC) service.

[0037] In view of the fact that the second uplink service (e.g., URLLC service) of UE 106 has ultra-high reliability and ultra-low latency transmission requirements, the base station 104 allocates uplink transmission resources as early as possible in time. The base station 104 determines that the second uplink transmission resources (e.g., PUSCH 136) that meet the ultra-high reliability and ultra-low latency transmission requirements may have been allocated to UE 102. That is, the base station 104 determines that at least a portion of PUSCH 134 collides (e.g., overlaps) with at least a portion of PUSCH 136. In response to determining that the priority of the second uplink service (e.g., URLLC service) of UE 106 is higher than the priority of the first uplink service (e.g., eMBB service) of UE 102, the base station 104 cancels the transmission of the first uplink service on the previously allocated uplink transmission resources (e.g., PUSCH 134). The UE 102 may cancel or continue transmission of the first uplink service in the remaining portion of the PUSCH 134 (eg, the portion of the PUSCH 134 after the PUSCH 136).

[0038] Various methods may be used to cancel low priority uplink transmissions. In one example, the base station 104 reschedules a new uplink transmission resource (not shown) for the UE 102 and then cancels the uplink transmission on the initially allocated uplink transmission resource (e.g., PUSCH 134). The base station 104 may retransmit an uplink grant (retransmission not shown) to the UE 102 to notify the UE 102 that the UE 102 may use the new PUSCH to transmit the first uplink service (e.g., the transmission is rescheduled to another uplink transmission resource PUSCH). The new data indicator (NDI) field of the new uplink grant is switched to indicate that the new uplink grant corresponds to the first uplink service (e.g., eMBB service). In some examples, this method may be used to reschedule and release the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof. In addition, the new uplink transmission resource may be used to transmit the entire transport block (TB) or a portion thereof.

[0039] In another example, the base station 104 may inform the UE 102 that the initially allocated uplink transmission resources (e.g., PUSCH 134) are preempted by the high priority service transmission using cancellation indication signaling (e.g., UL CI). Therefore, the UE 102 cancels the transmission on the preempted resources (e.g., PUSCH 134) in response to receiving the cancellation indication signaling. The cancellation indication signaling may be carried in the physical DCI on the downlink control channel, or on another specific signal sequence.

[0040] In yet another example, the base station 104 may instruct the UE 102 to reduce the transmission power on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof to zero to indirectly cancel the transmission of the first uplink service on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof, respectively. Thus, in response to receiving the transmission power reduction command / signal from the base station 104, the UE 102 cancels the transmission on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof.

[0041] The cancellation of the first uplink service due to a collision with the high priority second uplink service described with reference to process 100 is an illustrative example of a scenario applicable to the present embodiment, and additional scenarios in which the uplink service is cancelled may be caused by other appropriate reasons and are also applicable to the present embodiment. Examples of such additional scenarios include, but are not limited to, uplink services cancelled due to a collision with a frame structure configuration, uplink services cancelled due to a collision with other uplink transmissions of the same UE or a different UE, uplink services cancelled due to power limitations of 102, and the like.

[0042] In some embodiments, a PUSCH (e.g., PUSCH 134) is an example of an uplink transmission resource that can carry data for both a low priority service and a high priority service. A scheme similar to the scheme for canceling a first uplink transmission on PUSCH 134 may be implemented to cancel one or more other types of uplink transmissions having a lower priority, such as, but not limited to, those on a physical uplink control channel (PUCCH), a sounding reference signal (SRS), a physical random access channel (PRACH), etc., due to preemption in favor of one or more other types of uplink transmissions having a higher priority. Although the second uplink service transmitted using PUSCH 136 is shown as an example of a high priority uplink service that may result in the cancellation of a low priority uplink service, transmissions of other types of high priority uplink services (e.g., uplink transmissions communicated on PUCCH, SRS, PRACH, etc.) may similarly result in the cancellation of a low priority uplink service.

[0043] Figure 2 is a schematic diagram illustrating a process 200 for canceling an uplink transmission according to some embodiments of the present disclosure. Figure 1 and 2 , process 200 involves UE 102 and base station 104. Uplink transmission diagram 230 shows uplink activity of UE 102. Downlink transmission diagram 220 shows downlink activity of base station 104. Diagrams 220 and 230 show time slots divided in the time domain (represented by the horizontal axis). In some examples, the dimension or axis perpendicular to the time domain axis of each of diagrams 220 and 230 represents frequency, such as but not limited to bandwidth, active uplink BWP, carrier, etc. The frequency is discontinuous in different diagrams 220 and 230.

[0044] In some embodiments, the base station 104 may send a UL CI 201 in the downlink to the UE 102. The UL CI 201 corresponds to a cancellation of an uplink transmission in an uplink transmission resource within a reference uplink time-frequency resource region, such as, but not limited to, an uplink resource region (RUR) 202. Specifically, the UL CI 201 is used to indicate or otherwise identify the cancellation of a transmission of an uplink service carried on an uplink resource (e.g., PUSCH 134) within the RUR 202 corresponding to the UL CI 201.

[0045] In some embodiments, RUR 202 may be divided into a plurality of time-frequency resource subblocks. Each bit in the DCI corresponds to a time-frequency resource subblock. A bit value as a first value (e.g., 1) indicates that the time-frequency resource subblock corresponding to the bit is a cancelled resource (e.g., uplink transmission on the time-frequency resource subblock is cancelled). A bit value as a second value (e.g., 0) indicates that the time-frequency resource subblock corresponding to the bit is not a cancelled resource (e.g., uplink transmission on the time-frequency resource subblock is not cancelled).

[0046] In yet another example, the base station 104 may instruct the UE 102 to reduce the transmission power on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof to zero to indirectly cancel the transmission of the first uplink service on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof, respectively. Thus, in response to receiving the transmission power reduction command / signal from the base station 104, the UE 102 cancels the transmission on the entire initially allocated uplink transmission resource (e.g., PUSCH 134) or a portion thereof.

[0047] The canceled transmission may also be a PUSCH in a configured grant (CG) resource (e.g., CG-PUSCH). CG resources are configured to the UE via radio resource control (RRC) signaling (e.g., configuredGrantConfig) so that the UE can transmit uplink transmissions on the CG resources without an UL grant. If higher layers do not deliver a transport block to transmit on the resources allocated for uplink transmission without an UL grant, the UE will not transmit anything on the configured resources.

[0048] In this regard, Figure 3 is a schematic diagram illustrating an example RUR 300 according to some embodiments of the present disclosure. Figure 3 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-3 , RUR 300 is an example of RUR 202. UL grant 302 is an example of UL grant 124. RUR 300 is shown as a rectangle defined by dashed lines. Figure 3 As shown, in the case where the cancelled resources 305 (which are cancelled by the UL CI 301) overlap with the CG resources 304 of the UE, the gNB ["gNodeB"] does not know whether the uplink transmission will be transmitted on the CG resources 304 or whether the UE will cancel the uplink transmission. Therefore, the question is under what circumstances the UL grant 302 for PUSCH2 303 can be transmitted by the network side node.

[0049] In a wireless communication system, a control resource set (CORESET) includes one or more resource blocks (RBs) in the frequency domain and one or more orthogonal frequency division multiplexing (OFDM) symbols in the time domain. One or more physical downlink control channel (PDCCH) candidates are transmitted in the CORESET. The configuration parameters of the CORESET are configured by the network for the UE, including the CORESET index, frequency domain resources, CORESET duration, etc. One or more CORESETs can be configured for the UE to monitor the PDCCH.

[0050] In a wireless communication system, the network configures one or more search space sets for the UE. The configuration parameters of the search space set include the search space index, the associated CORESET index, the PDCCH monitoring period and offset, the search space duration, the PDCCH monitoring mode within the time slot, the search space type, etc. In general, there are two types of search spaces, UE-specific search space (USS) and common search space (CSS). The search space type also indicates the downlink control information (DCI) format monitored by the UE. The search space set is associated with the CORESET. The PDCCH monitoring period and offset indicate the time slot where the UE needs to monitor the PDCCH. According to the search space set configuration and the associated CORESET configuration, the UE is configured to: monitor the corresponding PDCCH with the DCI format indicated by the search space type on the resources indicated by the CORESET in the time slot indicated by the PDCCH monitoring period and offset.

[0051] Figure 4 4 is a diagram illustrating a time slot structure corresponding to an example configuration 400 of PDCCH monitoring opportunities according to various embodiments. Figure 4, configuration 400 corresponds to time slots 402a, 402b, 402c, 402d, 402e, 402f, 402g and 402h (collectively referred to as time slots 402a-402h). The PDCCH monitoring period is the period during which the UE monitors the PDCCH. In configuration 400, the PDCCH monitoring period is 4 time slots. That is, time slots 402a-402d are in PDCCH monitoring period 406a, and time slots 402e-402h are in PDCCH monitoring period 406b. The PDCCH monitoring offset in configuration 400 is 0 (e.g., no offset). The search space duration in configuration 400 is 2 time slots. As shown, within PDCCH monitoring period 406a, search space duration 404a includes time slots 402a and 402b. Within PDCCH monitoring period 406b, search space duration 404b includes time slots 402e and 402f. In configuration 400, 2 PDCCH monitoring opportunities (MOs) are configured in a given time slot within search duration 404a or 404b. For example, time slot 402a includes 44 OFDM symbols 410a, 410b, 410c, 410d, 410e, 410f, 410g, 410h, 410i, 410j, 410k, 410l, 410m and 410n (collectively referred to as symbols 410a-410n). Symbols 410a and 410h are configured as the first symbols of the MOs. Therefore, there are 4 MOs in each PDCCH monitoring period. For example, symbols 410a and 410h in time slot 402b and two additional first symbols of the MOs are within PDCCH monitoring period 406a. The two first symbols of the MOs in each time slot of time slots 402e and 402f are within PDCCH monitoring period 406b. In each MO, the UE monitors the PDCCH within one resource configured by the CORESET.

[0052] In a wireless communication system, one or more control channel element (CCE) aggregation levels (ALs) may be configured for a search space. For each AL, there are one or more PDCCH candidates, and each PDCCH candidate has a PDCCH candidate index. The PDCCH includes one or more CCEs, and each CCE has a CCE index. For a specific search space, a predefined formula may determine the CCE index for a specific AL corresponding to a specific PDCCH candidate index.

[0053] For UL CI monitoring, only one AL can be configured, and only one PDCCH candidate is defined for the configured AL. The UE will then monitor the UL CI in the defined PDCCH candidates using only the configured AL. The PDCCH candidate for UL CI under the configured AL is defined as at least one of the following PDCCH candidates: 1) the first PDCCH candidate that is not configured for DCI format 2_0 under the configured AL for UL CI; 2) the second PDCCH candidate under the configured AL for UL CI; 3) the third PDCCH candidate under the configured AL for UL CI; 4) the last PDCCH candidate under the configured AL for UL CI; or 5) the PDCCH candidate index under the configured AL for UL CI configured by RRC signaling, MAC signaling, or a combination of RRC signaling and MAC signaling. For example, a PDCCH candidate list with N PDCCH candidate indices is configured by RRC signaling, and for N=4, the PDCCH candidate indices are 1, 3, 4, and 5. One of the indexes may be further indicated by MAC signaling (eg, 2 bits in the signaling), so that "00" represents "PDCCH candidate index 1", "01" represents "PDCCH candidate index 3", "10" represents "PDCCH candidate index 4", and "11" represents "PDCCH candidate index 5".

[0054] In wireless communication systems, in order to allow the base station (BS) to more accurately understand the uplink power usage of the terminal, the Power Headroom Report (PHR) mechanism is supported. In other words, depending on the configuration of the base station, when a specific trigger condition is met, the terminal will report the power headroom (PH) or report both the PH and the maximum transmission power (Pcmax).

[0055] For power headroom reporting, Type 1 PHR and Type 3 PHR are defined in the New Radio (NR) system. The UE determines Type 1 PHR for the activated serving cell based on the actual PUSCH transmission or the reference format. The UE determines Type 3 PHR for the activated serving cell based on the actual Sounding Reference Signal (SRS) transmission or the reference SRS transmission. For Type 1 PHR, there are two types of PUSCH transmissions: DG (DCI Scheduling Grant) PUSCH and CG PUSCH. The DG PUSCH is dynamically scheduled by the gNB, and the CG PUSCH is semi-statically configured by the gNB. In addition, the gNB can semi-statically configure high priority or low priority for each CG PUSCH.

[0056] In carrier aggregation (CA) or dual connectivity (DC) scenarios, once PHR is triggered, the UE will feedback the Type 1 PHR of one or more activated serving cells in PUSCH. For each activated serving cell, the actual or virtual PHR is determined by the UE and fed back to the gNB. For an activated serving cell, if multiple CG PUSCHs overlap in the time domain, the CG PUSCH carrying the PHR is defined so that the UE and gNB have the same understanding of the PHR.

[0057] The UE may feed back the PHR to the base station in a PHR medium access control (MAC) control element (CE). If the terminal does not support multiple cells, the terminal feeds back the PHR of a single cell in a Single Entry PHR MAC CE. If the terminal supports multiple cells, such as in a CA or DC scenario, the terminal feeds back the PHR to the base station in a Multiple Entry PHR MAC CE. In addition to the PHR value, the attributes of each PHR value (i.e., whether the PHR value is an actual PHR or a virtual PHR) are also indicated in the PHR MAC CE.

[0058] Figure 5 is a schematic diagram of an example UE 500 . Figure 5 With the time domain as the horizontal axis. The UE 500 supports at least two uplink serving cells: serving cell 1 505 and serving cell 2 506. In serving cell 1 505, uplink transmission in PUSCH1 501 is scheduled by DCI 504. In serving cell 2 506, CG PUSCH1 502 and CG PUSCH2 503 are semi-statically configured by the gNB, and the gNB also configures the priorities of CG PUSCH1 502 and CG PUSCH2 503. CG PUSCH1 502 is configured as a high priority, and CG PUSCH2 503 is configured as a low priority, so that CG PUSCH1 502 and CG PUSCH2 503 are at different priorities. The time domain resources allocated to CG PUSCH1 502 and CG PUSCH2 503 overlap in some time units, which may be OFDM symbols, mini-slots, or time slots. Whether the UE transmits uplink data in CG PUSCH1 502 is determined based on data arrival, and the data here can be UL-SCH or others.

[0059] After the PHR is triggered at point 510, the UE 500 receives the DCI 504 scheduling the PUSCH 1501 in the serving cell 1 505, so the UE 500 determines to feed back the PHR for the serving cell 1 505 and the serving cell 2 506. The corresponding PHR MAC CE is prepared by the UE 500, and the type 1 PHR for the serving cell 1 505 and the type 1 PHR for the serving cell 2 506 are loaded in the PHR medium access control (MAC) control element (CE). In addition to the PHR value, the attribute of each PHR value (i.e., whether the PHR value is an actual PHR or a virtual PHR) is also indicated in the PHR MAC CE.

[0060] The PHR MAC CE is carried in PUSCH1 of serving cell 1 505. For serving cell 1 505, the PHR is calculated based on the actual PUSCH1 501 transmission. For serving cell 2 506, the PHR may be determined based on at least one of the following: 1) with reference to the priorities configured by the gNB for CG PUSCH1 502 and CG PUSCH2 503, the UE 500 calculates the actual PHR based on which CG PUSCH has a high priority or the highest priority; 2) with reference to the priorities configured by the gNB for CG PUSCH 1 502 and CG PUSCH 2 503, the UE 500 calculates the virtual PHR based on which CG PUSCH has a high priority or the highest priority; 3) with reference to the time domain positions of CG PUSCH1 502 and CG PUSCH2 503 configured by the gNB, the UE 500 calculates the actual PHR based on which CG PUSCH is the first in the time domain. Figure 5 As shown, the starting time unit (e.g., OFDM symbol, mini-slot, time slot) of CG PUSCH1 502 is earlier than that of CG PUSCH2 503, so CG PUSCH1 502 is the first PUSCH and CG PUSCH2 is the second PUSCH; 4) Referring to the time domain positions of CG PUSCH1 and CG PUSCH 2 configured by the gNB, UE 500 calculates the virtual PHR based on which CG PUSCH is the first in the time domain. Figure 5 As shown, the starting time unit (eg, OFDM symbol, mini-slot, time slot) of CG PUSCH1 502 is earlier than that of CG PUSCH2 503 , so CG PUSCH1 502 is the first PUSCH and CG PUSCH2 503 is the second PUSCH.

[0061] Figure 6 is a schematic diagram of an example UE 600 . Figure 6With the time domain as the horizontal axis. The UE 600 supports at least two uplink serving cells: serving cell 1 605 and serving cell 2 606. In serving cell 1 605, uplink transmission in PUSCH1 601 is scheduled by DCI 604. In serving cell 2 606, CG PUSCH1 602 and CG PUSCH2 603 are semi-statically configured by the gNB, and the gNB also configures the priorities of CG PUSCH1 602 and CG PUSCH2 603. CG PUSCH1 602 is configured as a high priority, and CG PUSCH2 603 is configured as a low priority, so that CG PUSCH1 602 and CG PUSCH2 603 are at different priorities. The time domain resources allocated for CG PUSCH1 602 and CG PUSCH2 603 overlap in some time units, which may be OFDM symbols, mini-slots, or time slots. Whether the UE transmits uplink data in CG PUSCH1 602 is determined based on data arrival, and the data here can be UL-SCH or something similar.

[0062] After the PHR is triggered at point 610, the UE 600 receives the DCI 604 that schedules the PUSCH 1601 in the serving cell 1 605, and thus the UE 600 determines to feed back the PHRs of the serving cell 1 605 and the serving cell 2 606. The corresponding PHR MAC CE is prepared by the UE 600, and the type 1 PHR for the serving cell 1 605 and the type 1 PHR for the serving cell 2 606 are loaded into the PHR medium access control (MAC) control element (CE). In addition to the PHR value, the attribute of each PHR value (i.e., whether the PHR value is an actual PHR or a virtual PHR) is also indicated in the PHR MAC CE.

[0063] The PHR MAC CE is carried in PUSCH1 601 in serving cell 1 605. For serving cell 1 605, the PHR is calculated based on the actual PUSCH1 601 transmission.

[0064] For serving cell 2 606, CG PUSCH 1 602 is configured by the gNB as low priority, and CG PUSCH 2 603 is configured by the gNB as low priority. Figure 6In the timeline shown, PHR is triggered at 610 (t0), DCI 604 is received by UE 600 at point 640 (t3), low priority data arrives from higher layers to the PHY layer at point 620 (t1), and high priority data arrives from higher layers to the PHY layer at point 630 (t2). Low priority data should be loaded into CG PUSCH1 602, and high priority data should be loaded into CG PUSCH2 603. Both 620 and 630 are before 640. Due to the overlap between the time domain resource allocation of CG PUSCH1 602 and CG PUSCH2 603, there are three possibilities for the transmission of CG PUSCH1 602 and CG PUSCH2 603: 1) UE 600 transmits both CG PUSCH1 602 and CG PUSCH2 603; 2) UE 600 does not transmit any one of CG PUSCH1 602 and CG PUSCH2 603; 3) UE 600 transmits one of CG PUSCH1 602 and CG PUSCH2603.

[0065] The method for determining the PHR for serving cell 2 606 by the UE 600 depends on at least one of the following possibilities: 1) referring to the priorities configured by the gNB for CG PUSCH1 602 and CG PUSCH2 603, the UE 600 calculates the actual PHR based on which CG PUSCH has a high priority or the highest priority; 2) referring to the priorities configured by the gNB for CG PUSCH1 602 and CG PUSCH2 603, the UE 600 calculates the virtual PHR based on which CG PUSCH has a high priority or the highest priority; 3) the UE 600 determines the actual PHR based on which CG-PUSCH is transmitted to send data. If CG PUSCH1 602 is transmitted to send data, the UE 600 determines the actual PHR based on CG PUSCH1 602. If CG PUSCH2 603 is transmitted to send data, the UE 600 determines the actual PHR based on CG PUSCH2 603.

[0066] Figure 7 is a schematic diagram of an example UE 700 . Figure 7With the time domain as the horizontal axis. The UE 700 supports at least two uplink serving cells: serving cell 1 705 and serving cell 2 706. In serving cell 1 705, uplink transmission in PUSCH1 701 is scheduled by DCI 704. In serving cell 2 706, CG PUSCH1 702 and CG PUSCH2 703 are semi-statically configured by the gNB, and the gNB also configures the priorities of CG PUSCH1 702 and CG PUSCH2 703. CG PUSCH1 702 is configured as a high priority, and CG PUSCH2 703 is configured as a low priority, so that CG PUSCH1 702 and CG PUSCH2 703 are at different priorities. The time domain resources allocated for CG PUSCH1 702 and CG PUSCH2 703 overlap in some time units, which may be OFDM symbols, mini-slots, or time slots. Whether the UE transmits uplink data in CG PUSCH 1 is determined based on data arrival, and the data here can be UL-SCH or something similar.

[0067] After the PHR is triggered at point 710, the UE 700 receives the DCI 704 that schedules the PUSCH 1 701 in the serving cell 1 705, and thus the UE 700 determines to feed back the PHRs of the serving cell 1 705 and the serving cell 2 706. The corresponding PHR MAC CE is prepared by the UE 700, and the type 1 PHR for the serving cell 1 705 and the type 1 PHR for the serving cell 2 706 are loaded in the PHR medium access control (MAC) control element (CE). In addition to the PHR value, the attribute of each PHR value (i.e., whether the PHR value is an actual PHR or a virtual PHR) is also indicated in the PHR MAC CE.

[0068] The PHR MAC CE is carried in PUSCH1 701 in serving cell 1 705. For serving cell 1 705, the PHR is calculated based on the actual PUSCH1 701 transmission.

[0069] For serving cell 2 706, CG PUSCH 1 702 is configured by the gNB as low priority, and CG PUSCH 2 703 is configured by the gNB as low priority. Figure 7In the timeline shown, PHR is triggered at 710 (t0), DCI 704 is received by UE 700 at 740 (t3), low priority data arrives at the PHY layer from a higher layer at 720 (t1), and high priority data arrives at the PHY layer from a higher layer at 730 (t2). 720 is before 740, and 730 is after 740. Low priority data should be loaded into CG PUSCH1 702, and high priority data should be loaded into CG PUSCH2 703. For serving cell 2 706, PHR may be determined according to at least one of the following: 1) Based on a CG PUSCH whose data arrival time (720 or 730) is before the DCI reception time 740. As Figure 7 As shown, 720 is before 740, so UE 700 determines PHR based on CG PUSCH1 702. In this example, if UE 700 transmits data in CG PUSCH 1 702, the UE determines the actual PHR based on CG PUSCH 1. If the UE does not transmit data in CG PUSCH1, the UE determines the virtual PHR; 2) based on the CG PUSCH whose data arrival time (720 or 730) is before the DCI reception time 740. Figure 7 As shown, 720 is before 740, so UE 700 determines PHR based on CGPUSCH1 702. In this example, regardless of whether there is data transmitted in CG PUSCH1 702, UE 700 always determines the actual PHR; 3) based on CG PUSCH whose data arrival time (720 or 730) is before DCI reception time 740. Figure 7 As shown, 720 is before 740, so the UE 700 determines the PHR based on the CG PUSCH1 702. In this example, regardless of whether there is data transmitted in the CG PUSCH1 702, the UE 700 always determines the virtual PHR.

[0070] exist Figure 5 , 6 In 501, 601 or 701 in serving cell 1 (505, 605 or 705), PUSCH1 (501, 601 or 701) in serving cell 1 (505, 605 or 705) may also be a CG PUSCH. If PUSCH1 in serving cell 1 is a CG PUSCH, t3 (640 or 740) may be the time when UE (500, 600 or 700) determines to feed back PHR in PUSCH1.

[0071] In a first method related to a conditional definition of the transmission of a UL grant after a UL CI, in response to determining that a start symbol of a PDCCH carrying the UL grant is located after an end symbol of the PDCCH carrying the UL CI by a time interval equal to or greater than a predefined value, the UE may be scheduled by the UL grant for PUSCH2. Figure 5 As shown, in the case where the resources indicated by the UL CI overlap with the CG resources of the UE (for example, the PUSCH resources configured by RRC signaling such as configuredGrantConfig), the gap between the end position of the PDCCH carrying the UL CI and the start position of the PDCCH carrying the UL grant of PUSCH2 should be no less than a predefined value (for example, X1). In other words, the network (for example, one or more base stations) transmits the UL grant for scheduling PUSCH2 to the UE in response to determining that the UL grant is a predefined time interval after the end of the PDCCH carrying the UL CI. The value of X1 is configured by RRC signaling or provided in the specification. Alternatively, in response to determining that the resources indicated by the UL CI do not overlap with the CG resources of the UE, the UE will not be canceled, so the UE can receive a UL grant whose end symbol is no earlier than the first symbol of the PDCCH carrying the UL CI without waiting for the predefined time gap.

[0072] Figure 5 is a schematic diagram showing an example RUR 800 according to the first method. Figure 8 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-5 , RUR 800 is an example of RUR 202. UL grant 802 is an example of UL grant 124. UL CI 802 is an example of UL CI 201. RUR 300 is shown as a rectangle defined by dashed lines. Figure 8 As shown, the cancelled resources 805 indicated by the UL CI 801 overlap with the CG resources 804. The PUSCH2 803 corresponding to the UL grant 802 can be scheduled because the UL grant 802 is located X1 symbols after the UL CI 801 in time.

[0073] In a second method related to a conditional definition of a UL grant transmitted after a UL CI, in response to determining that a first symbol of a PDCCH carrying the UL grant is located after an end symbol of the PDCCH carrying the UL CI by a time interval equal to or greater than a predefined value, the UE may be scheduled by the UL grant for a PUSCH (e.g., PUSCH 2). In the case where a resource indicated by the UL CI overlaps with a PUSCH resource of the UE, the PUSCH resource is configured by RRC signaling (e.g., a CG resource) or is scheduled by a UL grant, and its end symbol is earlier than the first symbol of the UL CI, the gap between the end position of the PDCCH carrying the UL CI and the start position of the PDCCH carrying the UL grant for PUSCH2 should not be less than a predefined value (e.g., X1). In other words, the network (e.g., one or more base stations) transmits the UL grant for scheduling PUSCH2 to the UE in response to determining that the UL grant is a predefined time interval after the end of the PDCCH carrying the UL CI. The value of X1 is configured by RRC signaling or provided in the specification. Alternatively, in response to determining that the resources indicated by the UL CI do not overlap with the PUSCH resources of the UE configured by RRC signaling or scheduled by the UL grant, there will be no cancellation operation for the UE, so that the UE can receive a UL grant whose end symbol is no earlier than the first symbol of the PDCCH carrying the UL CI without being restricted by a predefined time interval.

[0074] In a third method related to a conditional definition of transmission of a UL grant after a UL CI, in a case where resources indicated by a first UL CI (e.g., UL CI1) overlap with CG resources of the UE (e.g., PUSCH resources configured by RRC signaling such as configuredGrantConfig), in response to determining that an end symbol of a PDCCH carrying the UL grant is not earlier in time than a first symbol of a PDCCH carrying a next UL CI, the UE may be scheduled by the UL grant for another PUSCH. In other words, the network (e.g., one or more base stations) transmits the UL grant for scheduling PUSCH2 to the UE in response to determining that the UL grant occurs after another UL CI (later than the UL CI indicating overlapping resources). In response to determining that an end symbol of the PDCCH carrying the UL grant is earlier in time than a first symbol of a PDCCH carrying a next UL CI after UL CI1 (e.g., UL CI2), the UE will not receive the PDCCH carrying the UL grant. Alternatively, in response to determining that the resources indicated by UL CI1 do not overlap with the UE's CG resources, there will be no cancellation operation for the UE, so the UE can receive a UL grant whose end symbol is no earlier than the first symbol of the PDCCH carrying the UL CI.

[0075] Fig. 9 is a schematic diagram showing an example RUR 900 according to the third method. Fig. 9 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-6 , RUR 900 is an example of RUR 202. UL grants 902 and 904 are examples of UL grant 124. UL CI1 902 and UL CL2 904 are examples of UL CI201. RUR 900 is shown as a rectangle defined by dashed lines. Fig. 9 As shown, when CG resource 905 overlaps with cancellation resource 906 indicated by UL CI1 901, UL grant 902 after UL CI1 901 but before UL CI2 903 will not be allowed to be transmitted. However, UL grant 904 after UL CI1 901 and UL CI2 903 in time will be allowed to be transmitted.

[0076] In a fourth method related to a conditional definition of a UL grant transmitted after a UL CI, in a case where resources indicated by a first UL CI (e.g., UL CI1) overlap with PUSCH resources of a UE configured by RRC signaling or scheduled by a UL grant, and an end symbol of the UL grant is earlier than a first symbol of the UL CI, in response to determining that an end symbol of a PDCCH carrying the UL grant is not earlier than a first symbol of a PDCCH carrying a next UL CI (e.g., UL CI2), the UE may be scheduled by the UL grant for another PUSCH. In response to determining that an end symbol of the PDCCH carrying the UL grant is earlier than a first symbol of a PDCCH carrying UL CI2, the UE will not receive the PDCCH carrying the UL grant. In other words, the network (e.g., one or more base stations) may transmit the UL grant for scheduling PUSCH2 to the UE in response to determining that the UL grant occurs after another UL CI (later than the UL CI indicating overlapping resources). Alternatively, in response to determining that the resources indicated by UL CI1 do not overlap with the UE's PUSCH resources configured by RRC signaling or scheduled by UL grant, there will be no cancellation operation for the UE, so the UE can receive a UL grant whose end symbol is no earlier than the first symbol of the PDCCH carrying UL CI.

[0077] Fig.10 is a schematic diagram showing an example RUR 1000 according to the fourth method. Fig.10 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-7, RUR 1000 is an example of RUR 202. UL authorizations 1002 and 1004 are examples of UL authorization 124. UL CI1 1001 and UL CL2 1003 are examples of UL CI 201. RUR 1000 is shown as a rectangle defined by dashed lines. Fig.10 As shown, in the case where a PUSCH 1005 configured by signaling or scheduled by another UL grant overlaps with a canceled resource 1006 indicated by UL CI1 1001, a UL grant 1002 that is after UL CI1 1001 but earlier in time than UL CI2 1003 will not be allowed to be transmitted. However, a UL grant 1004 that is after UL CI1 1001 and UL CI2 1003 in time will be allowed to be transmitted.

[0078] In a fifth method related to the conditional position of a PUSCH scheduled by an UL grant following an UL CI, in response to determining that a PUSCH (e.g., PUSCH2) scheduled by an UL grant begins later than an end symbol of a first PUSCH resource of the UE configured by RRC signaling or scheduled by another different UL grant, transmission of the UL grant to the UE is allowed. The end symbol of the other different UL grant is earlier than the first symbol of the PDCCH carrying the UL CI. In other words, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that the PUSCH2 scheduled by the UL grant does not overlap with an earlier PUSCH.

[0079] Fig.11 is a schematic diagram showing an example RUR 1100 according to the fifth method. Fig.11 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-8 , RUR 1100 is an example of RUR 202. UL authorization 1102 is an example of UL authorization 124. UL C1 1101 is an example of UL CI 201. RUR 1100 is shown as a rectangle defined by a dashed line. Fig.11 As shown, in the case where PUSCH 1104 configured by signaling or scheduled by another UL grant overlaps with the cancelled resources 1105 indicated by UL CI 1101 , the UL grant 1102 associated with PUSCH2 1103 is scheduled because PUSCH2 1103 starts after the end symbol 1106 of PUSCH 1104 .

[0080] In a sixth method related to the conditional position of a PUSCH scheduled by a UL grant following a UL CI, in response to determining that a PUSCH (e.g., PUSCH2) scheduled by a UL grant does not overlap with resources indicated by the UL CI, transmission of the UL grant to the UE is allowed. Therefore, when PUSCH1 initially overlaps with resources indicated by the UL CI, PUSCH2 starts later than the end of an end symbol of a first PUSCH resource (PUSCH1) of the UE that is configured by RRC signaling or scheduled by a different UL grant (whose end symbol is earlier than the first symbol of the UL CI). In other words, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that PUSCH2 scheduled by the UL grant does not overlap with the canceled resources indicated by the UL Ci.

[0081] Fig.12 is a schematic diagram showing an example RUR 1200 according to the sixth method. Fig.12 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-9 , RUR 1200 is an example of RUR 202. UL authorization 1202 is an example of UL authorization 124. UL CI 1201 is an example of UL CI 201. RUR 1200 is shown as a rectangle defined by a dashed line. Fig.12 As shown, in the case where PUSCH 1204 configured by signaling or scheduled by another UL grant overlaps with the cancelled resource 1205 indicated by UL CI 1201, the UL grant 1202 associated with PUSCH2 1203 can be transmitted because PUSCH2 1203 starts after the end symbol 1206 of PUSCH 1204. In addition, PUSCH2 1203 does not overlap with the second cancelled resource 1207 indicated by UL CI 1201.

[0082] In a seventh method related to the conditional position of a PUSCH scheduled by a UL grant following a UL CI, in response to determining that a PUSCH (e.g., PUSCH2) scheduled by a UL grant does not overlap with resources indicated by an earlier UL CI, the UL grant is allowed to be transmitted to the UE. In this case, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that the PUSCH2 scheduled by the UL grant does not overlap with the cancelled resources indicated by the UL CI.

[0083] Fig.13 is a schematic diagram showing an example RUR 1300 according to the seventh method. Fig.13 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-10 , RUR 1300 is an example of RUR 202. UL authorization 1302 is an example of UL authorization 124. UL CI 1301 is an example of UL CI 201. RUR 1300 is shown as a rectangle defined by a dashed line. Fig.13 As shown, in the case where a PUSCH 1304 configured by signaling or scheduled by another UL grant overlaps with a first canceled resource 1305 indicated by UL CI 1301, scheduling of a UL grant 1302 associated with PUSCH2 1303 is allowed because PUSCH2 1303 does not overlap with the first canceled resource 1305 indicated by UL CI 1301. In addition, PUSCH2 1303 does not overlap with a second canceled resource 1307 indicated by UL CI 1301.

[0084] In an eighth method related to a conditional position of a PUSCH scheduled by an UL grant after an UL CI, in response to determining that a second PUSCH (e.g., PUSCH2) scheduled by the UL grant starts no earlier than the first symbol after a first predetermined time point (e.g., A), transmission of the UL grant to the UE is allowed. The position of the predetermined time point is defined as a time interval after an end symbol of the UL CI. The time interval (e.g., X1) is determined as the sum of the first time interval and the second time interval. The first time interval is indicated as T proc，2 A, and the second time interval is indicated as T proc，2 B+d2 or T proc，2 B. The first time interval (T proc，2 A) is defined as a time interval for decoding UL CI and canceling PUSCH, and the second time interval (T proc，2 B+d2 or T proc，2 B) is defined as the time interval for decoding UL grant and preparing PUSCH 2. In other words, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that PUSCH 2 scheduled by the UL grant starts at a time interval after the end symbol of the UL CI, which is at least equal to the time taken to decode the UL CI, cancel the PUSCH, decode the UL grant, and prepare the second PUSCH.

[0085] Each value of Tproc, 2A, Tproc, 2B, and d2 is related to UE capabilities and subcarrier spacing (SCS), and can be defined in the specification, configured by RRC signaling, or reported by the UE. In addition, the values ​​of Tproc, 2A, Tproc, 2B, and d2 can be defined according to the same SCS or different SCSs. For example, if Tproc is determined using the SCS of PUSCH2, proc，2 A.T. proc，2B and d2, then T proc，2 The value of A will be equal to T proc，2 In another example, T is determined according to the smaller of the SCS configuration of the PDCCH and the minimum SCS configuration provided in the scs-SpecificCarrierList of FrequencyInfoUL or FrequencyInfoUL-SIB. proc，2 The value of A is determined based on the SCS of PUSCH2. proc，2 The value of B.

[0086] Fig.14 is a schematic diagram illustrating an example RUR 1400 according to the eighth method. Fig.14 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-11 , RUR 1400 is an example of RUR 202. UL authorization 1402 is an example of UL authorization 124. UL CI 1401 is an example of UL CI 201. Fig.14 As shown, in the case where a PUSCH 1404 configured by signaling or scheduled by another UL grant overlaps with a canceled resource 1405 indicated by UL CI 1401, transmission of a UL grant 1402 associated with PUSCH2 1403 is allowed because PUSCH2 1403 starts no earlier than point A which is determined to be X1 symbols after the end point of UL CI 1401. Fig.14 As shown, the value of X1 is determined as T proc，2 A and T proc，2 The sum of B+d2 is determined to be T proc，2 A and T proc，2 The sum of B.

[0087] In a ninth method related to the conditional position of a PUSCH scheduled by an UL grant after an UL CI, in response to determining that a second PUSCH (e.g., PUSCH2) scheduled by the UL grant starts no earlier than the first symbol after a second predetermined time point (e.g., B), transmission of the UL grant to the UE is allowed. Fig.12 As shown, the position of the second predetermined time point is defined as a time interval (e.g., X2) after the start point of the cancelled resource indicated by the ULCI. The position of the second predetermined time point may also be defined as a time interval after the start point of the cancelled portion (or cancelled portion) of the first PUSCH resource configured by RRC signaling or scheduled by a UL grant (whose end symbol is earlier than the first symbol of the UL CI). The time interval is equal to the third time interval. The third time interval (e.g., T proc，2B) is defined as a time interval for decoding UL grant and preparing PUSCH2. In other words, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that PUSCH2 scheduled by the UL grant starts at a time interval after the start of the canceled resource or canceled portion (or canceled portion) of the first PUSCH resource - the time interval is equal to the time taken to decode the UL grant and prepare the second PUSCH. The value of the time interval is related to the UE capability and SCS, and can be defined in the specification or configured by RRC signaling. For example, the value of the third time interval can be defined according to the SCS of PUSCH2, the SCS of the UL grant that schedules PUSCH2, or the smaller of the SCS of PUSCH2 and the SCS of the UL grant that schedules PUSCH2.

[0088] Fig.15 is a schematic diagram showing an example RUR 1500 according to the ninth method. Fig.15 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-12 , RUR1500 is an example of RUR 202. UL authorization 1502 is an example of UL authorization 154. UL CI 1501 is an example of UL CI 201. Fig.15 As shown, in the case where a PUSCH 1504 configured by signaling or scheduled by another UL grant overlaps with a canceled resource 1505 indicated by UL CI 1501, a UL grant 1502 associated with PUSCH2 1503 is scheduled because PUSCH2 1503 starts after point B, which is determined to be X2 symbols after the first symbol of the canceled resource 1505 or the canceled portion (or canceled portion) of PUSCH 1504. Fig.15 As shown, the value of X2 is determined as T proc，2 The value of B.

[0089] In a tenth method related to a conditional position of a PUSCH scheduled by an UL grant after an UL CI, in response to determining that a PUSCH (e.g., PUSCH2) scheduled by an UL grant starts no earlier in time than the first symbol after a third predetermined point (e.g., C), transmission of the UL grant to the UE is allowed. The position of the third predetermined point in time is defined as a time interval (e.g., X3) after the end symbol of a previous PUSCH resource configured by RRC signaling or scheduled by an UL grant (whose end symbol is earlier than the first symbol of the UL CI). The time interval is equal to the third time interval (e.g., T proc，2B), which is defined above as the time interval for decoding UL grant and preparing PUSCH2. In other words, the network (e.g., one or more base stations) transmits the UL grant to the UE in response to determining that PUSCH2 scheduled by the UL grant starts at a time interval after the first PUSCH (the time interval is equal to the time taken to decode the UL grant and prepare the second PUSCH). The value of the time interval is related to the UE capabilities and SCS, and can be defined in the specification or configured by RRC signaling. For example, the value of the time interval can be defined according to the SCS of PUSCH2, the SCS of the UL grant that schedules PUSCH2, or the smaller of the SCS of PUSCH2 and the SCS of the UL grant that schedules PUSCH2.

[0090] Fig.16 is a schematic diagram illustrating an example RUR 1600 according to a tenth method. Fig.16 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-13 , RUR 1600 is an example of RUR 202. UL authorization 1602 is an example of UL authorization 124. UL CI 1601 is an example of UL CI 201. Fig.16 As shown, in the case where a PUSCH 1604 configured by signaling or scheduled by another UL grant overlaps with a canceled resource 1603 indicated by UL CI 1601, a UL grant 1602 associated with PUSCH2 1603 is scheduled because PUSCH2 1603 starts after point C, which is determined to be X3 symbols after the end symbol of PUSCH 1604. Fig.16 As shown, the value of X3 is determined as T proc，2 The value of B.

[0091] In an eleventh method related to a conditional position of a PUSCH scheduled by a UL grant after a UL CI, in response to determining that a second PUSCH (e.g., PUSCH2) scheduled by a UL grant starts no earlier than the first symbol after a first predetermined time point (e.g., A), transmission of the UL grant to the UE is allowed. PUSCH2 does not overlap with a previous PUSCH resource scheduled by a UL grant configured by RRC signaling or whose end symbol is earlier than the first symbol of the UL CI. The first predetermined time point (e.g., A) is the same as the time point defined in the eighth method.

[0092] Fig.17 is a schematic diagram illustrating an example RUR 1700 according to the eighth method. Fig.17 Having the time domain as the horizontal axis and the frequency (eg, bandwidth, active uplink bandwidth part (BWP), carrier, etc.) as the vertical axis. Figure 1-16 , RUR 1700 is an example of RUR 202. UL authorization 1702 is an example of UL authorization 124. UL CI 1701 is an example of UL CI 201. RUR 1700 is shown as a rectangle defined by a dashed line. Fig.17 As shown, in the case where a PUSCH 1704 configured by signaling or scheduled by another UL grant overlaps with a canceled resource 1705 indicated by UL CI 1701, PUSCH2 1703 between point A and point D and PUSCH2 1706 after point E can both be scheduled by UL grant 1702. Point D is determined as the starting point of the previous PUSCH resource, which is configured by RRC signaling or scheduled by a UL grant whose end symbol is earlier than the first symbol of UL CI. Point E is determined as the ending point of the previous PUSCH resource, which is configured by RRC signaling or scheduled by a UL grant whose end symbol is earlier than the first symbol of UL CI. Point A is determined in the same way as the eighth method. As shown in FIG. Fig.17 As shown, the value of X1 is determined as T proc，2 A and T proc，2 The sum of B+d2 is determined to be T proc，2 A and T proc，2 The sum of B.

[0093] In some embodiments, in order to schedule the UL grant, one of the conditions needs to be met (e.g., one of the first, second, third, fourth, fifth, seventh, eighth, ninth, tenth, and eleventh methods described herein). In other embodiments, in order to transmit the UL grant, two or more conditions should be met at the same time (e.g., one of the first, second, third, fourth, fifth, seventh, eighth, ninth, tenth, and eleventh methods described herein).

[0094] Fig.18A 1 is a schematic diagram illustrating a method 1800a for downlink control information transmission according to some embodiments. Figure 1-14 , method 1800a is performed by the UE.

[0095] At 1810, the UE determines that the first resource indicated by the uplink cancellation information overlaps with the second resource. At 1820, the UE receives an UL grant from the network that schedules a third resource. An end symbol of a first downlink control channel (first PDCCH) carrying the UL grant is no earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information. In some examples, the uplink cancellation information includes the UL CI. In some examples, the first resource, the second resource, and the third resource (e.g., PUSCH2) are uplink resources.

[0096] In some embodiments related to the first method, the second resource is a CG resource configured by the network through signaling (e.g., RRC signaling, etc.). The time interval (e.g., gap) between the end position of the second downlink control channel carrying the uplink cancellation information and the start position of the first downlink control channel carrying the UL authorization is not less than a predetermined threshold. In some examples, the end position of the second downlink control channel carrying the uplink cancellation information is the end of the end symbol of the second downlink control channel carrying the uplink cancellation information. The start position of the first downlink control channel carrying the UL authorization is the start of the first symbol of the first downlink control channel carrying the UL authorization. The end symbol of the second downlink control channel is the latest symbol of all symbols of the second downlink control channel. The first symbol of the first downlink control channel is the earliest symbol of all symbols of the first downlink control channel. The predetermined threshold is equal to the value X1. The value of X1 is configured by RRC signaling or provided in the specification.

[0097] In some embodiments related to the second method, the second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The time interval (e.g., gap) between the end position of the second downlink control channel carrying the uplink cancellation information and the start position of the first downlink control channel carrying the UL grant is not less than a predetermined threshold. The end symbol of the other UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end position of the second downlink control channel carrying the uplink cancellation information is the end point of the end symbol of the second downlink control channel carrying the uplink cancellation information. The start of the first downlink control channel carrying the UL grant is the start point of the first symbol of the first downlink control channel carrying the UL grant. The end symbol of each of the second downlink control channel and the other UL grant is the latest symbol of all symbols of the second downlink control channel and the other UL grant. The first symbol of each of the first and second downlink control channels is the earliest symbol of all symbols of the first and second downlink control channels. The predetermined threshold is equal to the value X1. The value of X1 is configured by RRC signaling or provided in the specification.

[0098] In some embodiments related to the third method, the second resource is a CG resource configured by the network through signaling (e.g., RRC signaling, etc.). The UL grant is carried on a first downlink control channel having an end symbol, which is no earlier than the first symbol of a third downlink control channel carrying subsequent uplink cancellation information (next UL CI). The subsequent uplink cancellation information is received after the uplink cancellation information is received. In some examples, the end symbol of the UL grant carried on the first downlink control channel is the latest symbol of all symbols of the UL grant carried on the first downlink control channel. The first symbol of the third downlink control channel carrying the subsequent uplink cancellation information is the earliest symbol of all symbols of the third downlink control channel carrying the subsequent uplink cancellation information.

[0099] In some embodiments related to the fourth method, the second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The UL grant is carried on a first downlink control channel with an end symbol, which is not earlier than the first symbol of the third downlink control channel carrying subsequent uplink cancellation information (next UL CI). The subsequent uplink cancellation information is received after the uplink cancellation information is received. The end symbol of another UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end symbols of the UL grant carried on the first downlink control channel and the other UL grant are the latest symbols of all symbols of the UL grant carried on the first downlink control channel and the other UL grant, respectively. The first symbol of the third downlink control channel carrying the subsequent uplink cancellation information and the second downlink control channel carrying the uplink cancellation information are the earliest symbols of all symbols of the third downlink control channel carrying the subsequent uplink cancellation information and the second downlink control channel carrying the uplink cancellation information, respectively.

[0100] In some embodiments related to the fifth method, the third resource starts later than the end symbol of the second resource. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The end symbol of the other UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end symbols of the second resource and the other UL grant are the latest symbols of all symbols of the second resource and the other UL grant, respectively. The first symbol of the second downlink control channel is the earliest symbol of all symbols of the third downlink control channel carrying the second downlink control channel.

[0101] In some embodiments related to the sixth method, the third resource does not overlap with the first resource. The third resource starts later than the end symbol of the UL resource, which is configured by the network through signaling (e.g., RRC signaling, etc.) or scheduled by the network through another UL grant. In some examples, the end symbol of the UL resource is the latest symbol of all symbols in the UL resource.

[0102] In some embodiments related to the seventh method, the third resource does not overlap with the first resource, and the third resource does not start earlier than a predefined time point. In some examples, the predefined time point is the end of the first resource. The end position of the first resource is the end point of the end symbol of the first resource. The end symbol of the first resource is the latest symbol among all symbols of the first resource.

[0103] In some embodiments related to the eighth method, the third resource starts no earlier than a predefined time point. In some examples, the predefined time point is a certain number of symbols after the end of the uplink cancellation information (UL CI). In some examples, the number of symbols is equal to the sum of the first interval and the second interval. The first interval is indicated as T proc，2 A, and is defined as the amount of time to decode the UL CI and cancel the corresponding PUSCH. The second interval is indicated as T proc，2 B+d2 or T proc，2 B, and is defined as the amount of time to decode the UL grant and prepare the corresponding PUSCH. The end position of the UL CI is the end point of the end symbol of the UL CI. The end symbol of the UL CI is the latest symbol among all symbols in the UL CI.

[0104] In some embodiments related to the ninth method, the third resource starts no earlier than a predefined time point. The predefined time point is a certain number of symbols after the canceled portion of the second resource starts. In some examples, the number of symbols is equal to the third time interval. The third interval is indicated as T proc，2 B, and is defined as the amount of time used to decode the UL grant and prepare the corresponding PUSCH. The start of the canceled portion of the second resource is the starting point of the first symbol of the canceled portion of the second resource. The canceled portion of the second resource is the portion of the second resource that overlaps with the first resource indicated by the uplink cancellation information in time and frequency. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant whose end symbol is earlier than the first symbol of the uplink cancellation information. The canceled portion of the second resource and the first symbol of the uplink cancellation information are respectively the earliest symbol of all symbols in the canceled portion of the second resource and the uplink cancellation information. The end symbol of the second resource is the latest symbol of all symbols in the second resource.

[0105] In some embodiments related to the tenth method, the third resource starts no earlier than a predefined time point. The predefined time point is a certain number of symbols after the end of the second resource. In some examples, the number of symbols is equal to the third time interval. The third interval is indicated as T proc，2 B, and is defined as the amount of time to decode the UL grant and prepare the corresponding PUSCH. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant whose end symbol is earlier than the first symbol of the uplink cancellation information. The end position of the second resource is the end point of the end symbol of the second resource. The end symbol of the second resource is the latest symbol of all symbols in the second resource. The first symbol of the uplink cancellation information is the earliest symbol of all symbols in the canceled part of the uplink cancellation information.

[0106] In some embodiments related to the eleventh method, the third resource does not overlap with the second resource in time, and the third resource starts no earlier than the predefined time point. In some examples, the predefined time point is defined in the same manner as in the eighth method.

[0107] Fig.18B 18 is a schematic diagram illustrating a method 1800b for downlink control information transmission according to some embodiments. Figure 1-14 , method 1800b is performed by the base station.

[0108] At 1830, the base station transmits uplink cancellation information to a wireless communication device (e.g., UE) indicating that the first resource overlaps with the second resource of the UE. At 1840, the base station transmits an uplink (UL) grant scheduling a third resource (e.g., PUSCH2) to the UE. An end symbol of a first downlink control channel (first PDCCH) carrying the UL grant is no earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information. In some examples, the uplink cancellation information includes a UL CI. In some examples, the first resource, the second resource, and the third resource are uplink resources.

[0109] In some embodiments related to the first method, the second resource is a CG resource configured by the network through signaling (e.g., RRC signaling, etc.). The time interval (e.g., gap) between the end position of the second downlink control channel carrying the uplink cancellation information and the start position of the first downlink control channel carrying the UL authorization is not less than a predetermined threshold. In some examples, the end position of the second downlink control channel carrying the uplink cancellation information is the end point of the end symbol of the second downlink control channel carrying the uplink cancellation information. The start of the first downlink control channel carrying the UL authorization is the starting point of the first symbol of the first downlink control channel carrying the UL authorization. The end symbol of the second downlink control channel is the latest symbol of all symbols of the second downlink control channel. The first symbol of the first downlink control channel is the earliest symbol of all symbols of the first downlink control channel. The predetermined threshold is equal to the value X1. The value of X1 is configured by RRC signaling or provided in the specification.

[0110] In some embodiments related to the second method, the second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The time interval (e.g., gap) between the end position of the second downlink control channel carrying the uplink cancellation information and the start position of the first downlink control channel carrying the UL grant is not less than a predetermined threshold. The end symbol of the other UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end position of the second downlink control channel carrying the uplink cancellation information is the end point of the end symbol of the second downlink control channel carrying the uplink cancellation information. The start of the first downlink control channel carrying the UL grant is the start point of the first symbol of the first downlink control channel carrying the UL grant. The end symbol of each of the second downlink control channel and the other UL grant is the latest symbol of all symbols of the second downlink control channel and the other UL grant. The first symbol of each of the first and second downlink control channels is the earliest symbol of all symbols of the first and second downlink control channels. The predetermined threshold is equal to the value X1. The value of X1 is configured by RRC signaling or provided in the specification.

[0111] In some embodiments related to the third method, the second resource is a CG resource configured by the network through signaling (e.g., RRC signaling, etc.). The UL grant is carried on a first downlink control channel with an end symbol, which is no earlier than the first symbol of a third downlink control channel carrying subsequent uplink cancellation information (next UL CI). The subsequent uplink cancellation information is transmitted after receiving the uplink cancellation information. In some examples, the end symbol of the UL grant carried on the first downlink control channel is the latest symbol of all symbols of the UL grant carried on the first downlink control channel. The first symbol of the third downlink control channel carrying the subsequent uplink cancellation information is the earliest symbol of all symbols of the third downlink control channel carrying the subsequent uplink cancellation information.

[0112] In some embodiments related to the fourth method, the second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The UL grant is carried on a first downlink control channel with an end symbol, which is not earlier than the first symbol of the third downlink control channel carrying subsequent uplink cancellation information (next UL CI). The subsequent uplink cancellation information is transmitted after the uplink cancellation information is transmitted. The end symbol of the other UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end symbols of the UL grant carried on the first downlink control channel and the other UL grant are the latest symbols of all symbols of the UL grant carried on the first downlink control channel and the other UL grant, respectively. The first symbol of the third downlink control channel carrying the subsequent uplink cancellation information and the second downlink control channel carrying the uplink cancellation information are the earliest symbols of all symbols of the third downlink control channel carrying the subsequent uplink cancellation information and the second downlink control channel carrying the uplink cancellation information, respectively.

[0113] In some embodiments related to the fifth method, the third resource starts later than the end symbol of the second resource. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant. The end symbol of the other UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information. In some examples, the end symbols of the second resource and the other UL grant are the latest symbols of all symbols of the second resource and the other UL grant, respectively. The first symbol of the second downlink control channel is the earliest symbol of all symbols of the third downlink control channel carrying the second downlink control channel.

[0114] In some embodiments related to the sixth method, the third resource does not overlap with the first resource. The third resource starts later than the end of the end symbol of the UL resource, which is configured by the network through signaling (e.g., RRC signaling, etc.) or scheduled by the network through another UL grant. In some examples, the end symbol of the UL resource is the latest symbol of all symbols in the UL resource.

[0115] In some embodiments related to the seventh method, the third resource does not overlap with the first resource, and the third resource does not start earlier than a predefined time point. In some examples, the predefined time point is the end of the first resource. The end position of the first resource is the end point of the end symbol of the first resource. The end symbol of the first resource is the latest symbol among all symbols of the first resource.

[0116] In some embodiments related to the eighth method, the third resource starts no earlier than a predefined time point. In some examples, the predefined time point is a certain number of symbols after the end of the uplink cancellation information (UL CI). In some examples, the number of symbols is equal to the sum of the first interval and the second interval. The first interval is indicated as T proc，2 A, and is defined as the amount of time to decode the UL CI and cancel the corresponding PUSCH. The second interval is indicated as T proc，2 B+d2 or T proc，2 B, and is defined as the amount of time to decode the UL grant and prepare the corresponding PUSCH. The end position of the UL CI is the end point of the end symbol of the UL CI. The end symbol of the UL CI is the latest symbol among all symbols in the UL CI.

[0117] In some embodiments related to the ninth method, the third resource starts no earlier than a predefined time point. The predefined time point is a certain number of symbols after the canceled portion of the second resource starts. In some examples, the number of symbols is equal to the third time interval. The third interval is indicated as T proc，2 B, and is defined as the amount of time to decode the UL grant and prepare the corresponding PUSCH. The start of the canceled portion of the second resource is the starting point of the first symbol of the canceled portion of the second resource. The canceled portion of the second resource is the portion of the second resource that overlaps with the first resource indicated by the uplink cancellation information in time and frequency. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant whose end symbol is earlier than the first symbol of the uplink cancellation information. The canceled portion of the second resource and the first symbol of the uplink cancellation information are the earliest symbol of all symbols in the canceled portion of the second resource and the uplink cancellation information, respectively. The end symbol of the second resource is the latest symbol of all symbols in the second resource.

[0118] In some embodiments related to the tenth method, the third resource starts no earlier than a predefined time point. The predefined time point is a certain number of symbols after the end of the second resource. In some examples, the number of symbols is equal to the third time interval. The third interval is indicated as T proc，2 B, and is defined as the amount of time to decode the UL grant and prepare the corresponding PUSCH. The second resource is configured by the network through signaling (e.g., RRC signaling, etc.), or is scheduled by the network through another UL grant whose end symbol is earlier than the first symbol of the uplink cancellation information. The end position of the second resource is the end point of the end symbol of the second resource. The end symbol of the second resource is the latest symbol of all symbols in the second resource. The first symbol of the uplink cancellation information is the earliest symbol of all symbols in the canceled part of the uplink cancellation information.

[0119] In some embodiments related to the eleventh method, the third resource does not overlap with the second resource in time, and the third resource starts no earlier than the predefined time point. In some examples, the predefined time point is defined in the same manner as in the eighth method.

[0120] Fig.19A A block diagram of an example base station 1902 is shown in accordance with some embodiments of the present disclosure. Fig.19B FIG. 1 is a block diagram of an example UE 1901 according to some embodiments of the present disclosure. Figure 1-15 , UE 1901 (eg, a wireless communication device, a terminal, a mobile device, a mobile user, etc.) is an example implementation of a UE described herein, and base station 1902 is an example implementation of one or more base stations described herein.

[0121] Base station 1902 and UE 1901 may include components and elements configured to support known or conventional operating features that need not be described in detail herein. In an illustrative embodiment, as described above, base station 1902 and UE 1901 may be used to transmit (e.g., transmit and receive) data symbols in a wireless communication environment. For example, base station 1902 may be a base station (e.g., gNB, eNB, etc.), a server, a node, or any suitable computing device used to implement various network functions.

[0122] Base station 1902 includes a transceiver module 1910, an antenna 1912, a processor module 1914, a memory module 1916, and a network communication module 1918. Modules 1910, 1912, 1914, 1916, and 1918 are operatively coupled together and interconnected via a data communication bus 1920. UE 1901 includes a UE transceiver module 1930, a UE antenna 1932, a UE memory module 1934, and a UE processor module 1936. Modules 1930, 1932, 1934, and 1936 are operatively coupled together and interconnected via a data communication bus 1940. Base station 1902 communicates with UE 1901 or another base station via a communication channel, which may be any wireless channel or other medium suitable for data transmission as described herein.

[0123] As those skilled in the art will appreciate, the base station 1902 and the UE 1901 may also include Fig.19A and 19B Any number of modules other than the modules shown. The various illustrative blocks, modules, circuits, and processing logic described in conjunction with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any actual combination thereof. In order to illustrate this interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are generally described according to their functions. Whether such functions are implemented in hardware, firmware, or software depends on the specific application applied and the design constraints on the entire system. The embodiments described herein can be implemented in an appropriate manner for each specific application, but any implementation decision should not be interpreted as limiting the scope of the present disclosure.

[0124] According to some embodiments, the UE transceiver 1930 includes a radio frequency (RF) transmitter and an RF receiver, each of which includes a circuit coupled to an antenna 1932. A duplex switch (not shown) can alternately couple the RF transmitter or receiver to the antenna in a time duplex manner. Similarly, according to some embodiments, the transceiver 1910 includes an RF transmitter and an RF receiver, each of which has a circuit coupled to an antenna 1912 or an antenna of another base station. The duplex switch can alternatively couple the RF transmitter or receiver to the antenna 1912 in a time duplex manner. The operation of the two transceiver modules 1910 and 1930 can be coordinated in time so that the receiver circuit is coupled to the antenna 1932 to receive the transmission over the wireless transmission link while the transmitter is coupled to the antenna 1912. In some embodiments, there is tight time synchronization with a minimum guard time between changes in duplex direction.

[0125] The UE transceiver 1930 and the transceiver 1910 are configured to communicate via a wireless data communication link and cooperate with an appropriately configured RF antenna arrangement 1912 / 1532 that can support a specific wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 1910 and the transceiver 1910 are configured to support industry standards such as long-term evolution (LTE) and emerging 5G standards. However, it should be understood that the present disclosure is not necessarily limited to the application of specific standards and related protocols. On the contrary, the UE transceiver 1930 and the base station transceiver 1910 can be configured to support alternative or additional wireless data communication protocols, including future standards or variants thereof.

[0126] Transceiver 1910 and the transceiver of another base station (such as but not limited to transceiver 1910) are configured to communicate via a wireless data communication link and cooperate with an appropriately configured RF antenna arrangement that can support a specific wireless communication protocol and modulation scheme. In some illustrative embodiments, transceiver 1910 and the transceiver of another base station are configured to support industry standards such as LTE and emerging 5G standards. However, it should be understood that the present disclosure is not necessarily limited to the application of specific standards and related protocols. On the contrary, transceiver 1910 and the transceiver of another base station can be configured to support alternative or additional wireless data communication protocols, including future standards or variants thereof.

[0127] According to various embodiments, base station 1902 may be a base station, such as but not limited to an eNB, a serving eNB, a target eNB, a femtocell or a microcell. Base station 1902 may be an RN, a conventional, a DeNB or a gNB. In some embodiments, UE 1901 may be embodied in various types of user equipment, such as a mobile phone, a smart phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, a wearable computing device, etc. Processor modules 1914 and 1936 may be implemented with a general-purpose processor, a content-addressable memory, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, any suitable programmable logic device, a discrete gate or transistor logic, a discrete hardware component or any combination thereof, and are designed to perform the functions described herein. In this way, the processor may be implemented as a microprocessor, a controller, a microcontroller, a state machine, etc. The processor may also be implemented as a combination of computing devices, for example, a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a digital signal processor core, or any other such configuration.

[0128] In addition, the methods or algorithms disclosed herein may be directly embodied in hardware, firmware, software modules executed by processor modules 1914 and 1936, respectively, or in any practical combination thereof. Memory modules 1916 and 1934 may be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 1916 and 1934 may be coupled to processor modules 1910 and 1930, respectively, so that processor modules 1910 and 1930 can read information from and write information to memory modules 1916 and 1934, respectively. Memory modules 1916 and 1934 may also be integrated into their respective processor modules 1910 and 1930. In some embodiments, memory modules 1916 and 1934 may each include a cache for storing temporary variables or other intermediate information during the execution of instructions to be executed by processor modules 1910 and 1930, respectively. Memory modules 1916 and 1934 may also each include non-volatile memory for storing instructions to be executed by processor modules 1910 and 1930, respectively.

[0129] The network communication module 1918 generally represents the hardware, software, firmware, processing logic and / or other components of the base station 1902 that support bidirectional communication between the transceiver 1910 and other network components and communication nodes communicating with the base station 1902. For example, the network communication module 1918 can be configured to support Internet or WiMAX traffic. In deployment, without limitation, the network communication module 1918 provides an 802.3 Ethernet interface so that the transceiver 1910 can communicate with a conventional Ethernet-based computer network. In this way, the network communication module 1918 may include a physical interface for connecting to a computer network (e.g., a mobile switching center (MSC)). In some embodiments, the network communication module 1918 includes a fiber optic transmission connection configured to connect the base station 1902 to the core network. The terms "configured for", "configured to" and their conjunctions, as used herein with respect to a specified operation or function, refer to a device, component, circuit, structure, machine, signal, etc. that is physically constructed, programmed, formatted and / or arranged to perform a specified operation or function.

[0130] Although various embodiments of the present solution have been described above, it should be understood that they are presented only by way of example and not by way of limitation. Similarly, various figures may depict example architectures or configurations, and the example architectures or configurations provided enable those of ordinary skill in the art to understand the example features and functions of the present solution. However, these people will understand that the solution is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as will be understood by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the illustrative embodiments described above.

[0131] It should also be understood that any reference to an element using names such as "first", "second", etc. herein does not generally limit the number or order of these elements. Instead, these names can be used herein as a convenient means of distinguishing two or more elements or element instances. Therefore, reference to a first element and a second element does not mean that only two elements can be used, or that the first element must be located before the second element in some way.

[0132] In addition, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0133] It will be further understood by those of ordinary skill in the art that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in conjunction with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of the two), firmware, various forms of programs or design codes containing instructions (which may be referred to herein as "software" or "software modules" for convenience), or any combination of these technologies. In order to clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been generally described above according to their functions. Whether such functions are implemented in hardware, firmware, or software, or a combination of these technologies, depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art may implement the described functions in various ways for each specific application, but such implementation decisions will not result in a departure from the scope of the present disclosure.

[0134] In addition, it will be understood by those of ordinary skill in the art that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented or performed within an integrated circuit (IC) that includes a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, modules, and circuits may further include antennas and / or transceivers to communicate with various components within a network or within a device. The general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration to perform the functions described herein.

[0135] If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented in software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, and communication media include any media that enables a computer program or code to be transferred from one place to another. The storage medium may be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer.

[0136] In this document, the term "module" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for the purpose of ease of discussion, various modules are described as discrete modules; however, it is obvious to a person of ordinary skill in the art that two or more modules can be combined to form a single module that performs relevant functions according to embodiments of the present solution.

[0137] In addition, in an embodiment of the present solution, a memory or other storage and communication components may be used. It should be understood that, for clarity, the above description has described an embodiment of the present solution with reference to different functional units and processors. However, it is apparent that any appropriate functional distribution between different functional units, processing logic elements or domains may be used without affecting the present solution. For example, functions shown as being performed by different processing logic elements or controllers may be performed by the same processing logic element or controller. Therefore, references to specific functional units are only references to appropriate means for providing the described functions, rather than indications of a strict logical or physical structure or organization.

[0138] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be given the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims.

Claims

1. A wireless communication method, comprising: Receiving, by the wireless communication device, a first uplink UL grant scheduling a second resource from the network; receiving, by the wireless communication device, uplink cancellation information indicating a first resource from the network; In response to receiving the first resource and the second resource, determining, by the wireless communication device, that the first resource indicated by the uplink cancellation information overlaps with the second resource; canceling, by the wireless communication device, transmission of the second resource; as well as A third resource scheduled by a second UL grant is received by the wireless communication device from the network, wherein an end symbol of a first downlink control channel carrying the second UL grant is not earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information.

2. The method according to claim 1, wherein The uplink cancellation information includes an uplink cancellation indication UL CI; and The first resource, the second resource, and the third resource are uplink resources.

3. The method according to claim 1, wherein The end symbol of the first UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information.

4. The method according to claim 1, wherein A time interval between an end position of the second downlink control channel carrying the uplink cancellation information and a start position of the first downlink control channel carrying the second UL grant is not less than a predetermined threshold.

5. The method according to claim 1, wherein The second UL grant is carried on a first downlink control channel having an end symbol that is no earlier than a first symbol of a third downlink control channel carrying subsequent uplink cancellation information, the subsequent uplink cancellation information being received after the uplink cancellation information is received.

6. The method according to claim 1, wherein The third resource starts later than an end symbol of the second resource.

7. The method according to claim 1, wherein The third resource does not overlap with the first resource; and The third resource starts later than an end symbol of the second resource.

8. The method according to claim 1, wherein The third resource does not overlap with the first resource; and The third resource starts no earlier than a predefined time point.

9. The method according to claim 8, wherein The predefined time point is a position a certain number of symbols after the uplink cancellation information ends.

10. The method according to claim 8, wherein The predefined time point is a position a certain number of symbols after the start of the cancelled part of the second resource.

11. The method according to claim 8, wherein: The predefined time point is a position a certain number of symbols after the second resource ends.

12. The method according to claim 1, wherein The third resource does not overlap with the second resource in time; and The third resource starts no earlier than a predefined time point.

13. The method according to claim 12, wherein The predefined time point is a position a certain number of symbols after the uplink cancellation information ends.

14. A wireless communication device, comprising at least one processor and a memory, wherein the at least one processor is configured to read a code from the memory and implement the method according to claims 1 to 13.

15. A computer program product comprising computer readable program medium code stored thereon, which, when executed by at least one processor, causes the at least one processor to implement the method according to claims 1 to 13.

16. A wireless communication method, comprising: Transmitting, by the network to the wireless communication device, a first uplink UL grant for scheduling a second resource; Determining, by the network, that the first resource overlaps with the second resource; Transmitting, by the network to the wireless communication device, uplink cancellation information indicating the first resource for canceling transmission of the second resource; as well as After transmitting the uplink cancellation information, the network transmits a third resource scheduled by a second UL grant to the wireless communication device, wherein an end symbol of a first downlink control channel carrying the second UL grant is no earlier than a first symbol of a second downlink control channel carrying the uplink cancellation information.

17. The method according to claim 16, wherein The uplink cancellation information includes an uplink cancellation indication UL CI; The first resource, the second resource, and the third resource are uplink resources of the wireless communication device.

18. The method according to claim 16, wherein The end symbol of the first UL grant is earlier than the first symbol of the second downlink control channel carrying the uplink cancellation information.

19. The method according to claim 16, wherein A time interval between an end position of the second downlink control channel carrying the uplink cancellation information and a start position of the first downlink control channel carrying the second UL grant is not less than a predetermined threshold.

20. The method of claim 16, wherein The second UL grant is carried on a first downlink control channel having an end symbol no earlier than a first symbol of a third downlink control channel carrying subsequent uplink cancellation information, the subsequent uplink cancellation information being transmitted after the uplink cancellation information is transmitted.

21. The method of claim 16, wherein The third resource starts after the end symbol of the second resource ends.

22. The method of claim 16, wherein The third resource does not overlap with the first resource; and The third resource starts later than an end symbol of the second resource.

23. The method of claim 16, wherein The third resource does not overlap with the first resource; and The third resource starts no earlier than a predefined time point.

24. The method according to claim 23, wherein The predefined time point is a position a certain number of symbols after the uplink cancellation information ends.

25. The method of claim 23, wherein The predefined time point is a position a certain number of symbols after the start of the cancelled part of the second resource.

26. The method of claim 23, wherein The predefined time point is a position a certain number of symbols after the second resource ends.

27. The method of claim 16, wherein The third resource does not overlap with the second resource in time; and The third resource starts no earlier than a predefined time point.

28. The method of claim 27, wherein The predefined time point is a position a certain number of symbols after the uplink cancellation information ends.

29. A wireless communication device comprising at least one processor and a memory, wherein the at least one processor is configured to read code from the memory and implement the method according to claims 16 to 28.

30. A computer program product comprising computer readable program medium code stored thereon, which, when executed by at least one processor, causes the at least one processor to implement the method according to claims 16 to 28.

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