WO2021062702A1

WO2021062702A1 - System and method for monitoring indicators

Info

Publication number: WO2021062702A1
Application number: PCT/CN2019/109597
Authority: WO
Inventors: Min Ren; Xing Liu; Peng Hao; Xianghui HAN; Wei Gou
Original assignee: Zte Corporation
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-04-08
Also published as: TW202116106A; CN114731243A

Abstract

A system and method for determining whether to monitor an indicator. The method includes determining information indicating whether a wireless communication device is required to monitor an indicator (602) and transmitting the information by the wireless communication node (604). The indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.

Description

SYSTEM AND METHOD FOR MONITORING INDICATORS

TECHNICAL FIELD

The disclosure relates generally to wireless communications and, more particularly, determining whether to monitor indicators and which indicators to be monitored.

BACKGROUND

In wireless communications, if multiple terminals transmit transmissions of services using a same resource, a collision occurs. Typically, if one of the services is higher priority than the other service, the transmission corresponding to the lower priority service needs to be stopped or canceled. The terminal corresponding to the lower priority service needs to be notified of this cancellation.

SUMMARY

The example embodiments disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various embodiments, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure.

In one embodiment, a method performed by a wireless communication node includes transmitting, by the wireless communication node, information indicating whether a wireless communication device is required to monitor an indicator. The indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.

In some embodiments, the information is indicated by at least one of downlink control information (DCI) or radio resource control (RRC) signaling.

In one embodiment, a method performed by a wireless communication device includes receiving, by the wireless communication device and from a wireless communication node, information indicating whether the wireless communication device is required to monitor an indicator. The indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.

In one embodiment, a method performed by a wireless communication node includes determining, by the wireless communication node, a mapping between a plurality of wireless communication device types and a plurality of indicator types. The mapping indicates whether each of the plurality of wireless communication device types is required to monitor an indicator in at least one of the plurality of indicator types. The indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled. The method includes transmitting, by the wireless communication node, information indicating one of the plurality of indicator types corresponding to the indicator.

In one embodiment, a method performed by a wireless communication device includes identifying, by the wireless communication device, a mapping between a plurality of wireless communication device types and a plurality of indicator types. The mapping indicates whether each of the plurality of wireless communication device types is required to monitor an indicator in at least one of the plurality of indicator types. The indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled. The method includes receiving, by the wireless communication node, information indicating one of the plurality of indicator types corresponding to the indicator.

In one embodiment, a method performed by a wireless communication device includes identifying, by a wireless communication device, a plurality of resources, the plurality of resources corresponding to respective indicators. The method includes comparing, by the wireless communication device, the plurality of resources with a first uplink resource previously configured for the wireless communication device, to determine at least one of the indicators to be monitored. The at least one of the indicators is configured to indicate a second uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.

The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Various example embodiments of the present solution are described in detail below with reference to the following figures or drawings. The drawings are provided for purposes of illustration only and merely depict example embodiments of the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered limiting of 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.

FIG. 1 is a schematic diagram illustrating a scenario in which PUSCH is canceled, in accordance with some embodiments of the present disclosure;

FIG. 2 is a table illustrating an example mapping relationship between UEs and UL CIs, in accordance with some embodiments of the present disclosure;

FIG. 3 is a table illustrating an example mapping relationship between UEs and UL CIs, in accordance with some embodiments of the present disclosure;

FIG. 4 is a schematic diagram illustrating monitoring UL CIs corresponding to RURs, in accordance with some embodiments of the present disclosure;

FIG. 5 is a schematic diagram illustrating monitoring UL CIs corresponding to RURs, in accordance with some embodiments of the present disclosure;

FIG. 6 illustrates a flowchart diagram illustrating a method of determining whether a device is to monitor an indicator, in accordance with some embodiments of the present disclosure;

FIG. 7 illustrates a flowchart diagram illustrating a method of determining a mapping of device types to indicator types, in accordance with some embodiments of the present disclosure; and

FIG. 8 illustrates a flowchart diagram illustrating a method of determining indicators to monitor, in accordance with some embodiments of the present disclosure.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

Various example embodiments of the present solution are described below with reference to the accompanying figures to enable a person of ordinary skill in the art to make and use the present solution. As would be apparent to those of ordinary skill in the art, after reading the present disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the example embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein are merely example approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present solution. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present solution is not limited to the specific order or hierarchy presented unless expressly stated otherwise.

When different types of uplink service with different transmission delay reliability requirements or different priority channels of the same service in the communication system are transmitted, the service with high priority, high reliability, or short transmission time interval preempts (e.g., resources of) the service with low priority, low reliability, or long transmission time interval. Some embodiments of the present disclosure solve the problem of how the network side indicates the transmission mechanism of the uplink service and how the terminal side monitors the indication signaling.

The 5th Generation mobile communication technology (5G) systems are dedicated to researching higher speed (Gbps) , massive links (1M/Km2) , ultra-low latency (1ms) , higher reliability, and 100 times energy efficiency. Some embodiments include slot-based aggregation based on a dynamic grant and slot-based repetitions based on a configured grant. In some embodiments, a terminal (e.g., a user equipment, UE, a mobile device, a mobile user, and the like) repeats a transport block (TB) across the multiple consecutive slots applying the same symbol allocation in each slot. In some embodiments, in order to support the characteristics of ultra-high reliability and ultra-low latency transmission, transmission of low-latency and high-reliability services in a short transmission time is required, and uplink transmission repetitions based on the dynamic grant or the configured grant are required. In some embodiments, the same TB is repeatedly transmitted in one slot, or the same TB is repeatedly transmitted across the slot boundary in consecutively available multiple slots.

In some embodiments, in order to support the characteristics of ultra-high reliability and ultra-low latency transmission, it is required to transmit low-latency and high-reliability services with a short transmission time. In some embodiments, the service with the short transmission time interval preempts resources that may be otherwise used by other service with the long transmission time interval. In some embodiments, in order to support different priority channels of the same service, when the lower priority channel transmission is repeatedly transmitted multiple times, the higher priority channel transmission preempts a one or more duplicate resources of the lower priority channel transmission. The occurred preemption transmission is unknown for a same user (e.g., UE) in multiple uplink transmissions, and for multiple users in a single uplink transmission. In some embodiments, in order to minimize the performance impact on the high priority with high reliability and low latency services or the same service, preemption needs to be indicated. The user who is preempted by the transmission is notified of information of the resource. In some embodiments, the lower priority uplink transmission will cancel the transmission or stop the transmission, thereby preventing the higher priority uplink transmission from being transmitted on the same resource and causing the performance to be degraded.

In some embodiments, for downlink service preemption, the base station (e.g., BS, gNB) uses the downlink control information (DCI) to indicate the preempted resources in a reference downlink resource (RDR) . In some embodiments, the BS divides 14 blocks and notifies each block whether it is preempted using a bitmap {M, N} = {14, 1} or {7, 2} . M represents the number of blocks in the time domain, and N represents the number of blocks divided in the frequency domain. In some embodiments, there is no valid indication for the uplink transmission. In some embodiments, when the preemption occurs, the base station needs to send a downlink preemption indication (DL PI) at a specific monitoring occasion after the end of the preemptive downlink transmission, and the terminal further completes the reception of the downlink transmission. The downlink preemption indication is monitored to determine whether the previous downlink transmission is preempted and the determined downlink data reception processing is adopted.

In some embodiments, for uplink service cancellation, similar information indicating time-frequency domain resources can be defined. In some embodiments, in order to prevent the uplink transmission of the terminal, the terminal needs to be notified of an uplink cancellation indication (UL CI) before the uplink service transmission.

In some embodiments, in order to transmit the UL CI in a timely manner, the network side (e.g., the BS, the gNB) configures, with a higher density (e.g., more frequently) , a monitoring occasion for uplink cancellation indication. In some embodiments, the network side only sends the cancellation information when the cancellation event occurs, which, in some embodiments, is relatively occasional. For the terminal, not every indication information being sent includes useful information, but in order not to miss any indication information, in some embodiments, the terminal needs to check whether there is indication information on any transmission opportunity of all downlink control channels, which will increase the complexity of the terminal detection and increase the power consumption. Therefore, there exists a technical problem of effectively detecting the information indicating the preemption of the resource.

FIG. 1 is a schematic diagram illustrating a scenario in which PUSCH is canceled, in accordance with some embodiments of the present disclosure. In some embodiments, a first scheduling request (SR) 112 is sent by UE1 102 to a base station 101. The first SR 122 is a request for transmission resource for UL service for the UE1 102. In some embodiments, the UL service corresponds to a low-priority service such as Enhanced Mobile Broadband (eMBB) . Through UL grant 114, the base station 101 allocates UL resource 116 (e.g., PUSCH1) for the UL service transmission of the low-priority service for the UE1 102, responsive to the SR 112.

In some embodiments, after the transmission of the SR 112 and the UL grant 114, UE2 104 transmits a second SR 118. In some embodiments, the second SR 118 corresponds to a high-priority service such as ultra-reliable low-latency communication (URLLC) . Through UL grant 120, the base station 101 allocates UL resource 122 for the UL service transmission of the high-priority service for the UE2 104, responsive to the SR 118. In some embodiments, the resource (e.g., the UL resource 122) that satisfies such transmission requirements may have already been allocated to the UE1 102. As shown, the UL resource 122 and the UL resource 116 collide (overlap in time and frequency) .

In some embodiments, in order to protect the performance of the PUSCH2 122, the PUSCH2 122 preempted resource needs to be notified to the UE1 102, so that the UE1 can cancel/stop the transmission on the preempted resource. In some embodiments, the base station 101 cancels the transmission of the UL service of the UE1 102 on the previously allocated UL resource 116. In some embodiments, the base station 101 can re-schedule another PUSCH resource 124 for the UE1 102 (through UL grant 126) , and then cancels the transmission on the original allocated PUSCH UL resource 116. Some embodiments of the present disclosure provide a system and method on how the base station 101 notifies the UE1 102 of the preemption resources and which notifications the UE1 102 monitors.

In the embodiment of the present application, the uplink transmission is used as an example. Some embodiments of the technical solution can be used on a downlink transmission. Some embodiments of the technical solution can be used on physical layer channels, such as a control channel, a random access channel, and a data channel. The physical layer channels can correspond to any communication technology (e.g., 4G, 5G, or 6G) .

In some embodiments, a method for notifying a terminal whether it is necessary to monitor an uplink cancellation indication information (UL CI, also referred to as CI) is described. In some embodiments, a wireless communication node (e.g., the base station, the gNB) transmits information (e.g., Downlink Control Information (DCI) or radio resource control (RRC) signaling) indicating whether a wireless communication device is required to monitor an indicator (e.g., the UL CI) . In some embodiments, a wireless communication device (e.g., UE1 102, a terminal, a mobile device) receives, from a wireless communication node, the information indicating whether the wireless communication device is required to monitor the indicator. In some embodiments, the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled (e.g., the transmission is canceled) .

In some embodiments, the base station (e.g. the base station 101) sends the UL CI in, or indicates the UL CI by, one of the DCI or the RRC signaling. The UL CI is carried or transmitted on the physical downlink control channel. In some embodiments, a cyclic redundancy check (CRC) of the UL CI is scrambled by a common RNTI (Radio-Network Temporary Identifier) . The common RNTI may be a predefined RNTI in the protocol. In some embodiments, the base station transmits the RNTI via system information to all the UEs or a certain group of UEs in a cell. As such, the UE can use the RNTI to descramble the time-frequency domain resource that transmits the UL CI.

In some embodiments, the base station configures (e.g. determines) information (e.g., a bit such as an indication bit) in the DCI corresponding to the uplink transmission. For example, the indication bit is used to indicate user-specific control information. In some embodiments, a first value (e.g., “0” ) indicates that the terminal does not need to monitor UL CI and a second value (e.g., “1” ) indicates that the terminal needs to monitor UL CI. In some embodiments, the information is indicated by at least one of downlink control information (DCI) or radio resource control (RRC) signaling. In some embodiments, the wireless communication node determines a bit indicated by the DCI to be either a first logic value or a second logic value. In some embodiments, the first logic value is configured to require the wireless communication device to monitor the indicator and the second logic value is configured to require the wireless communication device not to monitor the indicator. In some embodiments, the wireless communication device identifies the bit indicated by the DCI to be either the first logic value or the second logic value. In some embodiments, the first logic value is configured to require the wireless communication device to monitor the indicator and the second logic value is configured to require the wireless communication device not to monitor the indicator. In some embodiments, the wireless communication node determines an existing information field by the DCI. For example, a redundancy version, a HARQ process number or a new data indicator is used to indicate whether the terminal needs to monitor UL CI.

In some embodiments, the base station configures an indication in the RRC signaling. For example, whether the UL CI needs to be monitored is selected by a RRC signaling choice structure. For example, the RRC signaling indicates that the selection does not need to monitor the UL CI. In some embodiments, whether the UL CI needs to be monitored is indicated by a bit in the RRC signaling. In some embodiments, a first value (e.g., “0” ) indicates that the terminal does not need to monitor the UL CI, and a second value (e.g., “1” ) indicates that the terminal needs to monitor the UL CI. In some embodiments, the wireless communication node determines a bit indicated by the RRC signaling to be either a first logic value or a second logic value. In some embodiments, the wireless communication device identifies the bit indicated by the RRC signaling to be either the first logic value or the second logic value. In some embodiments, the first logic value is configured to require the wireless communication device to monitor the indicator and the second logic value is configured to require the wireless communication device not to monitor the indicator.

In some embodiments, the base station indicates whether information indicating a domain (e.g., an indication field) is included in a specific RRC message. In some embodiments, when a specific RRC message does not include the information indicating domain, the default terminal does not need to monitor the CI. In some embodiments, when a specific RRC message includes the information indicating domain, the default terminal needs to monitor the CI. In some embodiments, the wireless communication node determines whether to include the indication field in the RRC signaling. In some embodiments, the wireless communication device identifies whether an indication field is included in the RRC signaling. In some embodiments, a presence of the indication field in the RRC signaling corresponds to requiring the wireless communication device to monitor the indicator and a lack of the indication field in the RRC signaling corresponding to requiring the wireless communication device not to monitor the indicator.

In some embodiments, the base station configures the indication in a combination of RRC signaling and DCI . For example, if the RRC does not enable monitoring of the CI, then the DCI is ignored. In some embodiments, if the RRC enables monitoring of the CI, then the DCI indicates whether the information of the monitoring CI is a valid value (e.g., whether the terminal is to monitor the CI) . In some embodiments, the wireless communication node determines whether the RRC signaling enables monitoring the indicator. In some embodiments, the wireless communication node determines, based on the enablement of monitoring the indicator, whether a message indicated by the DCI is valid or invalid. The valid message corresponds to requiring the wireless communication device to monitor the indicator and the invalid message corresponds to requiring the wireless communication device not to monitor the indicator.

In some embodiments, the base station configures the indication by factors (e.g., repetition factor or aggregation factor) . In some embodiments, when the factor indicated in the DCI or RRC is greater than 1, then the factor indicates that the terminal is to monitor the CI. In some embodiments, when the factor is equal to 1, then the factor indicates that the terminal does not need to Monitor the CI. In some embodiments, the wireless communication node determines a factor indicated by the RRC signaling or the DCI to be either greater than a threshold or equal to the threshold. In some embodiments, the wireless communication device identifies a factor indicated by the RRC signaling or the DCI to be either greater than a threshold or equal to the threshold. In some embodiments, being greater than the threshold corresponds to requiring the wireless communication device to monitor the indicator, and being equal to the threshold corresponds to requiring the wireless communication device not to monitor the indicator.

In some embodiments, a method for determining, by a terminal, whether to monitor a UL CI according to a mapping relationship is described. The mapping relationship is between a specific type of terminal and a specific type of UL CI, in some embodiments. In some embodiments, the wireless communication node determines a mapping between a plurality of wireless communication device types and a plurality of indicator types. In some embodiments, the mapping indicates whether each of the plurality of wireless communication device types is required to monitor an indicator in at least one of the plurality of indicator types. In some embodiments, the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled. In some embodiments, the wireless communication node transmits information indicating one of the plurality of indicator types corresponding to the indicator. In some embodiments, the wireless communication device identifies a mapping between a plurality of wireless communication device types and a plurality of indicator types. In some embodiments, the wireless communication device receives information indicating one of the plurality of indicator types corresponding to the indicator.

In some embodiments, the mapping relationship is predefined by the base station or notified by RRC signaling. In some embodiments, the mapping between the plurality of wireless communication device types and the plurality of indicator types is configured to the wireless communication device, or predefined in a protocol.

In some embodiments, the terminal is one of N terminal types; and the UL CI refers is one of N-1 UL CI types. N is an integer greater than 1. In some embodiments, the mapping relationship is defined between each UL CI type and each type of terminal. In some embodiments, a number of the wireless communication device types is equal to N and a number of the indicator types is equal to N-1, N being an integer greater than or equal to 2.

FIG. 2 is a table 200 illustrating an example mapping relationship between UEs and UL CIs, in accordance with some embodiments of the present disclosure. In the example, three types of terminals are defined: a first type of terminal, a second type of terminal, and a third type of terminal. In the example, two types of indicator (e.g., CI) are defined, the first type of CI, the second type of CI. In the table 200, a need to monitor is indicated by a check mark, “√, ” and a lack of the need to monitor is indicated by an “x. ” According to the mapping relationship of the table 200, the second type of terminal needs to monitor the first type of CI and cancel the corresponding transmission information according to the resource indicated by the first type of CI. In some embodiments, the first type of CI indicates resources occupied by all terminals having higher priority than the second type of terminal. According to the mapping relationship of the table 200, the third type of terminal needs to monitor the second type of CI and cancel the corresponding transmission information according to the resource indicated by the second type of CI. In some embodiments, the second type of CI indicates all resources occupied by terminals with higher priority than the third type terminal. According to the mapping relationship of the table 200, the first type of terminal does not need to monitor any CI.

The terminal type may be assigned to a terminal based on a priority of the terminal. In some embodiments, the first type of terminal has the highest priority, the second type of terminal is the second, and the third type of terminal has the lowest priority. In some embodiments, the first type of CI indicates the resource occupied by the first type of terminal, and the second type of CI indicates resources occupied by the first type of terminal and the second type of terminal.

FIG. 3 is a table 300 illustrating an example mapping relationship between UEs and UL CIs, in accordance with some embodiments of the present disclosure. The table 300 is similar to the table 200 except that the second type of CI only indicates resources occupied by the second type of terminal. Thus, according to the table 300, the third type of terminal needs to monitor the first type of CI for resources occupied by the first type of terminal and cancel the corresponding transmission information according to the resource indicated by the first type of CI, and the third type of terminal also needs to monitor the second type of CI for resources occupied by the second type of terminal and cancel the corresponding transmission information according to the resource indicated by the second type of CI.

In some embodiments, different types of UE are determined according to pre-defined the type of terminal. For example, the standard predefined a terminal UE1 as a first type terminal (such as a URLLC UE) , and a terminal UE2 as a second type terminal (eMBB UE) . In some embodiments, the wireless communication node determines, according to a predefined protocol, the wireless communication device to correspond to one of the plurality of wireless communication device types. In some embodiments, the wireless communication node identifies, according to a predefined protocol, the wireless communication device to correspond to one of the plurality of wireless communication device types.

In some embodiments, different types of UE are determined according to different priority channels of the same service. For example, the UE1 and the UE2 both transmit URLLC services, but the UE1 is a high-priority channel transmission, for example, PUCCH is transmitted, then the UE1 is a first type of terminal. The UE2 is the next highest priority channel transmission, for example, PUSCH is repeated multiple times, then the UE2 is the second type terminal. The priority relationship between the channels is predefined in the standard or configured by the base station through signaling. In some embodiments, the wireless communication node determines, according to a priority of a transmission channel, the wireless communication device to correspond to one of the plurality of wireless communication device types. In some embodiments, the wireless communication node identifies, according to a priority of a transmission channel, the wireless communication device to correspond to one of the plurality of wireless communication device types.

In some embodiments, different types of UE are determined according to the type of service currently transmitted by the terminal. For example, the UE1 supports both URLLC service transmission and eMBB service transmission. When UE1 transmission is a URLLC service, it is defined as a first type of terminal. When UE1 transmission is an eMBB service, it is defined as a second type of terminal. In some embodiments, the wireless communication node determines, according to a type of a current transmission service, the wireless communication device to correspond to one of the plurality of wireless communication device types. In some embodiments, the wireless communication node identifies, according to a type of a current transmission service, the wireless communication device to correspond to one of the plurality of wireless communication device types.

In some embodiments, different types of UE are determined according to different transmission time intervals. For example, if the UE1 transmission is the service information corresponding to the short transmission time interval, then the UE1 is the first type terminal. If the UE2 transmission is the service information corresponding to the long transmission time interval, then the UE2 is the second type terminal. In some embodiments, the wireless communication node determines, according to a transmission time interval, the wireless communication device to correspond to one of the plurality of wireless communication device types. In some embodiments, the wireless communication node identifies, according to a transmission time interval, the wireless communication device to correspond to one of the plurality of wireless communication device types.

In some embodiments, different types of CIs are determined by different DCI formats. For example, DCI format A represents a first type of CI and DCI format B represents a second type of CI. In some embodiments, the wireless communication node transmits a DCI in one of a plurality of DCI formats. In some embodiments, the wireless communication device receives the DCI in one of the plurality of DCI formats. In some embodiments, the plurality of DCI formats respectively corresponds to a plurality of indicator types.

In some embodiments, different types of CIs are determined by taking different RNTI values. For example, a DCI with a CRC scrambled by RNTI A represents a first type of CI and a DCI with a CRC scrambled by RNTI B represents a second type of CI. In some embodiments, the wireless communication node transmits a DCI with CRC scrambled by one of a plurality of RNTI values. In some embodiments, the wireless communication device receives the DCI with the CRC scrambled by one of the plurality RNTI values. In some embodiments, the plurality of RNTI values respectively corresponds to a plurality of indicator types.

In some embodiments, different types of CIs are determined by using different Search Space or CORESET values. For example, Search Space A represents the first type CI and Search Space B represents the second type CI. In another example, CORESET A represents the first type CI and CORESET B represents the second type CI. In some embodiments, the wireless communication node transmits a DCI in one of a plurality of search spaces or CORESETs. In some embodiments, the wireless communication device receives the DCI in one of the plurality of search spaces or CORESETs. In some embodiments, the plurality of search spaces or CORESETs respectively corresponds to the plurality of indicator types.

In some embodiments, different types of CIs are determined by a different CRC mask. For example, a DCI is scrambled by a same RNTI and whose CRC is scrambled by a CRC mask A represents a first type of CI and a DCI is scrambled by a same RNTI and whose CRC is scrambled by a CRC mask B represents a second type of CI. In some embodiments, the wireless communication node transmits a DCI with a CRC scrambled by one of a plurality of CRC masks. In some embodiments, the wireless communication device receives the DCI with the CRC scrambled by one of the plurality of CRC masks. In some embodiments, the plurality of CRC masks respectively corresponds to the plurality of indicator types

In some embodiments, the terminal efficiently detects the UL CI even though the network side does not send the UL CI on all downlink control channel transmission opportunities. In some embodiments, terminal detection complexity and power consumption is reduced as a result of efficient detection. In some embodiments, the UL CI indicates a resource in the reference uplink resource region (RUR) . In some embodiments, the correspondence between the UL CI and the RUR is configured by the base station by using signaling or is predefined in the standard. In some embodiments, the values of the frequency domain area and the time domain area corresponding to the RUR are predefined or a Radio Resource Control (RRC) configuration.

In some embodiments, the RURs indicated by the UL CIs sent on each monitoring opportunity or occasion do not overlap each other. FIG. 4 is a schematic diagram 400 illustrating monitoring UL CIs corresponding to RURs, in accordance with some embodiments of the present disclosure. In FIG. 4, PUSCH (e.g., the PUSCH1 402) transmits on a transmission resource corresponding to a low priority service (e.g., eMBB PUSCH) , and is allowed to be canceled by a higher priority service transmission (e.g., URLLC PUSCH) , so the UE transmitting the low priority service needs to monitor the UL CI. In some embodiments, the UE compares the UL CI indication resource, which is the scheduled resource of the higher priority PUSCH, with the low priority PUSCH transmission resource. In some embodiments, if the UE identifies that the UL CI indication resource, which, in some embodiments, is the scheduled resource of the higher priority PUSCH, overlaps with the low priority PUSCH transmission resource, then the UE cancels part or all of the low priority PUSCH transmission. In some embodiments, the UE needs to monitor all UL CIs corresponding to the one or more RURs overlapping with the low priority PUSCH transmission resource (e.g., these UL CIs are the smallest set of UE monitoring UL CIs) . As shown in FIG. 4, for example, resource occupancy in RUR1 is indicated by CI1, resource occupancy in RUR2 is indicated by CI2, and resource occupancy in RUR3 is indicated by CI3. As shown in FIG. 4, RUR1, RUR2, and RUR3 do not overlap each other. The resources used by the low priority PUSCH are in RUR2 and RUR3. According to the example illustrated in FIG. 4, the minimum set to be monitored by the UE is CI2 and CI3.

In some embodiments, the wireless communication device identifies a plurality of resources (e.g., the RURs) . In some embodiments, the plurality of resources correspond to respective indicators. In some embodiments, the wireless communication device compares the plurality of resources with a first uplink resource (e.g., the PUSCH1 402) previously configured for the wireless communication device, to determine at least one of the indicators to be monitored. In some embodiments, the at least one of the indicators (e.g., CI2 404 illustrated in FIG. 4) is configured to indicate a second uplink resource (e.g., PUSCH2 406 illustrated in FIG. 4) on which an uplink transmission was previously configured for the wireless communication device to be canceled. In some embodiments, the plurality of resources are not overlapped with one another along a time domain. In some embodiments, the wireless communication device identifies at least one of the resources overlapping the first uplink resource along the time domain. In some embodiments, the wireless communication device determines the at least one indicator to be monitored according to the at least one identified resource.

In some embodiments, there is an overlap between the RURs indicated by the UL CI sent on each monitoring opportunity. FIG. 5 is a schematic diagram 500 illustrating monitoring UL CIs corresponding to RURs, in accordance with some embodiments of the present disclosure. In some embodiments, the UE transmitting the low-priority service needs to monitor the UL CI corresponding to the RUR that overlaps with the resources used for the eMBB low-priority service information transmission (e.g., the minimum set that the UE needs to monitor are the UL CIs corresponding to RUR1, RUR2, and RUR3, namely CI1, CI2 and CI3) . In some embodiments, the plurality of resources are overlapped with one another along a time domain. In some embodiments, the wireless communication device identifies at least one of the resources overlapping the first uplink resource along the time domain. In some embodiments, the wireless communication device determines the at least one indicator to be monitored according to the at least one identified resource.

In some embodiments, there is an overlap between the RURs indicated by the UL CI sent on each monitoring opportunity. In some embodiments, the minimum set of UE monitoring CIs may be the UL CI corresponding to a latter (e.g., last in time) RUR in the overlapping RURs that overlaps with the resources used by the UE to transmit information. As shown in FIG. 5, the first half of the low-priority service PUSCH is overlapped by RUR1 and RUR2. The CI corresponding to the latter RUR, CI 2, needs to be monitored, as shown in FIG. 5. As shown in FIG. 5, the second half of the low-priority service PUSCH is overlapped by RUR2 and RUR3. The CI corresponding to the latter RUR, CI 3, needs to be monitored, as shown in FIG. 5. In some embodiments, the plurality of resources are overlapped with one another along a time domain. In some embodiments, the wireless communication device identifies at least one of the resources overlapping the first uplink resource along the time domain. In some embodiments, the wireless communication device determines the at least one indicator to be monitored according to one of the at least two identified resources that is arranged behind the other of the at least two identified resources along the time domain.

FIG. 6 illustrates a flowchart diagram illustrating a method 600 of determining whether a device is to monitor an indicator, in accordance with some embodiments of the present disclosure. Referring to FIGS. 1-5, the method 600 is performed by the BS 101, in some embodiments. Additional, fewer, or different operations may be performed in the method 600 depending on the embodiment.

The BS 101 determines information indicating whether a wireless communication device is required to monitor an indicator (602) . In some embodiments, the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled. The BS 101 transmits the information indicating whether the wireless communication device is required to monitor the indicator (604) .

FIG. 7 illustrates a flowchart diagram illustrating a method of determining a mapping of device types to indicator types, in accordance with some embodiments of the present disclosure. Referring to FIGS. 1-5, the method 700 is performed by the BS 101, in some embodiments. Additional, fewer, or different operations may be performed in the method 700 depending on the embodiment.

The BS 101 determines a mapping between a plurality of wireless communication device types and a plurality of indicator types (702) . In some embodiments, the mapping indicates whether each of the plurality of wireless communication device types is required to monitor an indicator in at least one of the plurality of indicator types. In some embodiments, the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled. The BS 101 transmits information indicating one of the plurality of indicator types corresponding to the indicator.

FIG. 8 illustrates a flowchart diagram illustrating a method of determining indicators to monitor, in accordance with some embodiments of the present disclosure. Referring to FIGS. 1-5, the method 800 is performed by the UE 102, in some embodiments. Additional, fewer, or different operations may be performed in the method 800 depending on the embodiment.

The UE 102 identifies resources corresponding to respective indicators (802) . The UE 102 compares the plurality of resources with a first uplink resource (804) . In some embodiments, the first uplink resource was previously configured for the UE 102 . The UE 102 determines at least one of the indicators to be monitored (806) . In some embodiments, the at least one of the indicators is configured to indicate a second uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.

While various embodiments of the present solution have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. Likewise, the various diagrams may depict an example architectural or configuration, which are provided to enable persons of ordinary skill in the art to understand example features and functions of the present solution. Such persons would understand, however, that the solution is not restricted to the illustrated example architectures or configurations, but can be implemented using a variety of alternative architectures and configurations. Additionally, as would be understood by persons of ordinary skill in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.

It is also understood that any reference to an element herein using a designation such as "first, " "second, " and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.

Additionally, a person having ordinary skill in the art would understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits and symbols, for example, which may be referenced in the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

A person of ordinary skill in the art would further appreciate that any of the various illustrative logical blocks, modules, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software" or a "software module) , or any combination of these techniques. To clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware or software, or a combination of these techniques, depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.

Furthermore, a person of ordinary skill in the art would understand that various illustrative logical blocks, modules, devices, components and circuits described herein can be implemented within or performed by an integrated circuit (IC) that can include 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 logical blocks, modules, and circuits can further include antennas and/or transceivers to communicate with various components within the network or within the device. A general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.

If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another. A storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can 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 desired program code in the form of instructions or data structures and that can be accessed by a computer.

In this document, the term "module" as used herein, refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various modules are described as discrete modules; however, as would be apparent to one of ordinary skill in the art, two or more modules may be combined to form a single module that performs the associated functions according embodiments of the present solution.

Additionally, memory or other storage, as well as communication components, may be employed in embodiments of the present solution. It will be appreciated that, for clarity purposes, the above description has described embodiments of the present solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present solution. For example, functionality illustrated to be performed by separate processing logic elements, or controllers, may be performed by the same processing logic element, or controller. Hence, references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.

Various modifications to the implementations described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other implementations without departing from the scope of this disclosure. Thus, the disclosure is not intended to be limited to the implementations shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims below.

Claims

A wireless communication method, comprising:

transmitting, by a wireless communication node, information indicating whether a wireless communication device is required to monitor an indicator,

wherein the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.
The wireless communication method of claim 1, wherein the information is indicated by at least one of downlink control information (DCI) or radio resource control (RRC) signaling.
The wireless communication method of claim 2, wherein the information is indicated by the DCI, the method further comprising:

determining, by the wireless communication node, a bit indicated by the DCI to be either a first logic value or a second logic value, the first logic value configured to require the wireless communication device to monitor the indicator and the second logic value configured to require the wireless communication device not to monitor the indicator.
The wireless communication method of claim 2, wherein the information is indicated by the signaling, the method further comprising at least one of:

determining, by the wireless communication node, a bit indicated by the RRC signaling to be either a first logic value or a second logic value, the first logic value configured to require the wireless communication device to monitor the indicator and the second logic value configured to require the wireless communication device not to monitor the indicator; or

determining, by the wireless communication node, whether to include an indication field in the RRC signaling, a presence of the indication field in the RRC signaling corresponding to requiring the wireless communication device to monitor the indicator and a lack of the indication field in the RRC signaling corresponding to requiring the wireless communication device not to monitor the indicator.
The wireless communication method of claim 2, wherein the information is indicated by the RRC signaling and the DCI, the method further comprising:

determining, by the wireless communication node, whether the RRC signaling enables monitoring the indicator; and

determining, by the wireless communication node based on the enablement of monitoring the indicator, whether a message indicated by the DCI is valid or invalid, the valid message corresponding to requiring the wireless communication device to monitor the indicator and the invalid message corresponding to requiring the wireless communication device not to monitor the indicator.
The wireless communication method of claim 2, wherein the information is indicated by either the RRC signaling or the DCI, the method further comprising:

determining, by the wireless communication node, a factor indicated by the RRC signaling or the DCI to be either greater than a threshold or equal to the threshold, being greater than the threshold corresponding to requiring the wireless communication device to monitor the indicator and being equal to the threshold corresponding to requiring the wireless communication device not to monitor the indicator.
A wireless communication method, comprising:

receiving, by a wireless communication device and from a wireless communication node, information indicating whether the wireless communication device is required to monitor an indicator,

wherein the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.
The wireless communication method of claim 7, wherein the information is indicated by at least one of downlink control information (DCI) or radio resource control (RRC) signaling.
The wireless communication method of claim 8, wherein the information is indicated by the DCI, the method further comprising:

identifying, by the wireless communication device, a bit indicated by the DCI to be either a first logic value or a second logic value, the first logic value configured to require the wireless communication device to monitor the indicator and the second logic value configured to require the wireless communication device not to monitor the indicator.
The wireless communication method of claim 8, wherein the information is indicated by the signaling, the method further comprising at least one of:

identifying, by the wireless communication device, a bit indicated by the RRC signaling to be either a first logic value or a second logic value, the first logic value configured to require the wireless communication device to monitor the indicator and the second logic value configured to require the wireless communication device not to monitor the indicator; or

identifying, by the wireless communication device, whether an indication field is included in the RRC signaling, a presence of the indication field in the RRC signaling corresponding to requiring the wireless communication device to monitor the indicator and a lack of the indication field in the RRC signaling corresponding to requiring the wireless communication device not to monitor the indicator.
The wireless communication method of claim 8, wherein the information is indicated by the RRC signaling and the DCI, the method further comprising:

identifying, by the wireless communication device, whether the RRC signaling enables monitoring the indicator; and

identifying, by the wireless communication node based on the enablement of monitoring the indicator, whether a message indicated by the DCI is valid or invalid, the valid message corresponding to requiring the wireless communication device to monitor the indicator and the invalid message corresponding to requiring the wireless communication device not to monitor the indicator.
The wireless communication method of claim 8, wherein the information is indicated by either the RRC signaling or the DCI, the method further comprising:

identifying, by the wireless communication node, a factor indicated by the RRC signaling or the DCI to be either greater than a threshold or equal to the threshold, being greater than the threshold corresponding to requiring the wireless communication device to monitor the indicator and being equal to the threshold corresponding to requiring the wireless communication device not to monitor the indicator.
A wireless communication method, comprising:

determining, by a wireless communication node, a mapping between a plurality of wireless communication device types and a plurality of indicator types, wherein the mapping indicates whether each of the plurality of wireless communication device types is required to monitor an indicator in at least one of the plurality of indicator types, and wherein the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled; and

transmitting, by the wireless communication node, information indicating one of the plurality of indicator types corresponding to the indicator.
The wireless communication method of claim 13, wherein a number of the wireless communication device types is equal to N and a number of the indicator types is equal to N-1, N being an integer greater than or equal to 2.
The wireless communication method of claim 13, wherein the mapping between the plurality of wireless communication device types and the plurality of indicator types is configured to the wireless communication device, or predefined in a protocol.
The wireless communication method of claim 13, further comprising at least one of:

determining, by the wireless communication node according to a predefined protocol, the wireless communication device to correspond to one of the plurality of wireless communication device types;

determining, by the wireless communication node according to a priority of a transmission channel, the wireless communication device to correspond to one of the plurality of wireless communication device types;

determining, by the wireless communication node according to a type of a current transmission service, the wireless communication device to correspond to one of the plurality of wireless communication device types; or

determining, by the wireless communication node according to a transmission time interval, the wireless communication device to correspond to one of the plurality of wireless communication device types.
The wireless communication method of claim 13, wherein the information is indicated by downlink control information (DCI) , the method further comprising at least one of:

transmitting, by the wireless communication node, the DCI in one of a plurality of DCI formats, the plurality of DCI formats respectively corresponding to the plurality of indicator types;

transmitting, by the wireless communication node, the DCI with CRC scrambled by one of a plurality of radio network temporary identifier (RNTI) values, the plurality of RNTI values respectively corresponding to the plurality of indicator types;

transmitting, by the wireless communication node, the DCI in one of a plurality of search spaces or CORESETs, the plurality of search spaces or CORESETs respectively corresponding to the plurality of indicator types; or

transmitting, by the wireless communication node, the DCI with CRC scrambled by one of a plurality of cyclic redundancy check (CRC) masks, the plurality of CRC masks respectively corresponding to the plurality of indicator types.
A wireless communication method, comprising:

identifying, by a wireless communication device, a mapping between a plurality of wireless communication device types and a plurality of indicator types, wherein the mapping indicates whether each of the plurality of wireless communication device type is required to monitor an indicator in at least one of the plurality of indicator types, and wherein the indicator is configured to indicate an uplink resource on which an uplink transmission was previously configured for a wireless communication device to be canceled; and

receiving, by the wireless communication device, information indicating one of the plurality of indicator types corresponding to the indicator.
The wireless communication method of claim 18, wherein a number of the wireless communication device types is equal to N and a number of the indicator types is equal to N-1, N being an integer greater than or equal to 2.
The wireless communication method of claim18, The wireless communication method of claim 13, wherein the mapping between the plurality of wireless communication device types and the plurality of indicator types is configured to the wireless communication device, or predefined in a protocol.
The wireless communication method of claim 18, further comprising at least one of:

identifying, by the wireless communication node according to a predefined protocol, the wireless communication device to correspond to one of the plurality of wireless communication device types;

identifying, by the wireless communication device according to a priority of a transmission channel, the wireless communication device to correspond to one of the plurality of wireless communication device types;

identifying, by the wireless communication device according to a type of a current transmission service, the wireless communication device to correspond to one of the plurality of wireless communication device types; or

identifying, by the wireless communication device according to a transmission time interval, the wireless communication device to correspond to one of the plurality of wireless communication device types.
The wireless communication method of claim 18, wherein the information is indicated by downlink control information (DCI) , the method further comprising at least one of:

receiving, by the wireless communication device, the DCI in one of a plurality of DCI formats, the plurality of DCI formats respectively corresponding to the plurality of indicator types;

receiving, by the wireless communication device, the DCI with CRC scrambled by one of a plurality of radio network temporary identifier (RNTI) values, the plurality of RNTI values respectively corresponding to the plurality of indicator types;

receiving, by the wireless communication device, the DCI in one of a plurality of search spaces or CORESETs, the plurality of search spaces or CORESETs respectively corresponding to the plurality of indicator types; or

receiving, by the wireless communication device, the DCI with CRC scrambled by one of a plurality of cyclic redundancy check (CRC) masks, the plurality of CRC masks respectively corresponding to the plurality of indicator types.
A wireless communication method, comprising:

identifying, by a wireless communication device, a plurality of resources, the plurality of resources corresponding to respective indicators; and

comparing, by the wireless communication device, the plurality of resources with a first uplink resource previously configured for the wireless communication device, to determine at least one of the indicators to be monitored, the at least one of the indicators configured to indicate a second uplink resource on which an uplink transmission was previously configured for the wireless communication device to be canceled.
The wireless communication method of claim 23, wherein the plurality of resources are not overlapped with one another along a time domain, the method further comprising:

identifying, by the wireless communication device, at least one of the resources overlapping the first uplink resource along the time domain; and

determining the at least one indicator to be monitored according to the at least one identified resource.
The wireless communication method of claim 23, wherein the plurality of resources are overlapped with one another along a time domain, the method further comprising:

identifying, by the wireless communication device, at least one of the resources overlapping the first uplink resource along the time domain; and

determining the at least one indicator to be monitored according to the at least one identified resource.
The wireless communication method of claim 23, wherein the plurality of resources are overlapped with one another along a time domain, the method further comprising:

identifying, by the wireless communication device, at least two of the resources overlapping the first uplink resource along the time domain; and

determining the at least one indicator to be monitored according to one of the at least two identified resources that is arranged behind the other of the at least two identified resources along the time domain.