EP4635124A1

EP4635124A1 - Method, device and computer program product for wireless communication

Info

Publication number: EP4635124A1
Application number: EP23918131.6A
Authority: EP
Inventors: Jianqiang DAI; Mengzhu CHEN; Bo Dai; Jun Xu
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2025-10-22
Also published as: WO2024156126A1; CN120322986A; JP2026502590A

Abstract

A wireless communication method is disclosed. The method comprises determining, by a wireless communication terminal, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and transmitting, by the wireless communication terminal to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.

Description

Method, Device and Computer Program Product for Wireless Communication

This document is directed generally to wireless communications, and in particular to 5^th generation (5G) communications or 6^th generation (6G) communications.
The eXtended Reality (XR) such as Augmented Reality (AR) and Virtual Reality (VR) techniques arise in multiple applications e.g., immersive gaming, Smart Transport, collaborative and concurrent engineering etc. From the wireless connection perspective, these cases are supposed to be supported based on enhanced NR (new radio) wireless network, which requires properties of good capacity with both high data rate and low network latency.
This document relates to methods, systems, and computer program products for the wireless transmission and reception.
One aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: determining, by a wireless communication terminal, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and transmitting, by the wireless communication terminal to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.
Another aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: determining, by a wireless communication terminal, an uplink, UL, resource for transmitting uplink data to be invalid; and refraining from transmitting, by the wireless communication terminal to a wireless communication node, the uplink data in the uplink, UL, resource in response to the UL resource being determined to be invalid.
Another aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: in response to an uplink, UL, resource for transmitting Uplink Control Information, UCI, being determined by a wireless communication terminal as invalid, receiving, by a wireless communication node from the wireless communication terminal, the UCI in a valid UL resource.
Another aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: in response to an uplink, UL, resource for transmitting uplink, UL, data being determined by a wireless communication terminal as invalid, refraining from receiving, by a wireless communication node from the wireless communication terminal, the UL data in the UL resource.
Another aspect of the present disclosure relates to a wireless communication terminal. In an embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured to: determine, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and transmit, to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.
Another aspect of the present disclosure relates to a wireless communication terminal. In an embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured to: determine an uplink, UL, resource for transmitting uplink data to be invalid; and refrain from transmitting, to a wireless communication node, the uplink data in the uplink, UL, resource in response to the UL resource being determined to be invalid.
Another aspect of the present disclosure relates to a wireless communication node. In an embodiment, the wireless communication node includes a communication unit and a processor. The processor is configured to: in response to an uplink, UL, resource for transmitting Uplink Control Information, UCI, being determined by a wireless communication terminal as invalid, receive, from the wireless communication terminal, the UCI in a valid UL resource.
Another aspect of the present disclosure relates to a wireless communication node. In an embodiment, the wireless communication node includes a communication unit and a processor. The processor is configured to: in response to an uplink, UL, resource for transmitting uplink, UL, data being determined by a wireless communication terminal as invalid, refrain from receiving, from the wireless communication terminal, the UL data in the UL resource.
Various embodiments may preferably implement the following features:
Preferably, the UL resource determined to be invalid comprises one or more symbols in configured UL resources that conflicting with one or more configured downlink, DL, resources in a DL configuration.
Preferably, the UL resource determined to be invalid comprises at least one of:
a symbol in configured UL resources that is indicated as a downlink symbol;
a symbol in configured UL resources that is indicated as a resource of a synchronization signal physical broadcast channel, SS/PBCH, block; or
a symbol in configured UL resources that is configured to receive a physical downlink control channel, PDCCH, a physical downlink shared channel, PDSCH, or a channel status information reference signal, CSI-RS, on a reference cell.
Preferably, the UL resource determined to be invalid comprises at least one of:
a symbol in configured UL resources that has a time gap with a dynamic scheduled DL resource, and the time gap being less than a predetermined time threshold.
Preferably, the wireless communication terminal transmits the UCI at a first UL symbol of the valid UL resource, and wherein the valid UL resource is an available UL resource closest to the UL resource determined to be invalid.
Preferably, the UL resource determined to be invalid is a physical uplink control channel, PUCCH, resource, and the UCI is transmitted in the first UL symbol in a PUCCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a physical uplink shared channel, PUSCH, resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a PUCCH resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource closest to the UL resource determined to be invalid.
Preferably, the wireless communication terminal transmits the UCI in response to at least one of the following conditions being met:
one or more redundant configured grant, CG, UL occasions exist;
a DL resource is before or in a period of one or more redundant CG UL occasions; or
a time gap between a DL resource in a period of one or more redundant CG UL occasions and the valid UL resource for transmitting the UCI is not less than a predetermined threshold.
Preferably, the first UL symbol of the valid UL resource is a symbol only for transmitting the UCI or is a symbol for transmitting the UCI and UL data.
Preferably, the first UL symbol of the valid UL resource is a dedicated PUCCH symbol only for transmitting the UCI or is a first symbol of a PUSCH occasion operable to transmit both of the UCI and the UL data.
Preferably, the UCI indicates releasing a certain number of CG UL occasions.
Preferably, the UCI indicates an index of a CG UL occasion.
Preferably, the wireless communication terminal determines a UCI resource is valid in response to the UCI resource satisfying at least one of:
the UCI resource does not precede by a SS/PBCH block in a PUSCH in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;
a gap between the UCI resource and a last SS/PBCH block before the UCI resource is larger than a predetermined threshold in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;
the UCI resource is within one or more UL symbols in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon; or
a gap between the UCI resource and a last SS/PBCH block before the UCI resource and a gap between the UCI resource and a last DL symbol are both larger than a predetermined threshold in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon.
Preferably, the UL resource determined to be invalid comprises at least one of:
one or more configured grant, CG, occasions being indicated as invalid in an activation period by a de-activating signal;
a CG resource being scheduled by a UL grant;
a CG resource being indicated as invalid by common signaling; or
a CG resource being indicated as invalid by Downlink Control Information, DCI.
Preferably, the wireless communication terminal transmits assistance information to the wireless communication node in response to the UL resource for transmitting the uplink data being determined as invalid.
Preferably, the UL resource for transmitting the uplink data is determined as valid or invalid in response to the UL resource conflicting with a dynamic downlink, DL, symbol or a flexible symbol.
Preferably, the assistance information comprises resource request information requesting a new UL resource.
The present disclosure relates to a computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any one of foregoing methods.
The exemplary embodiments disclosed herein are directed to providing features that will become readily apparent by reference to the following description when taken in conjunction with the accompany drawings. In accordance with various embodiments, exemplary systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and not limitation, 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 the present disclosure.
Thus, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and/or hierarchy of steps in the methods disclosed herein are merely exemplary 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 disclosure. 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 disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.
FIG. 1 shows a schematic diagram of a wireless communication method according to an embodiment of the present disclosure.
FIG. 2 shows a schematic diagram of a wireless communication method according to an embodiment of the present disclosure.
FIG. 3 shows a schematic diagram of a wireless communication method according to an embodiment of the present disclosure.
FIG. 4 shows a schematic diagram of a wireless communication method according to an embodiment of the present disclosure.
FIG. 5 shows an example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure.
FIG. 6 shows an example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure.
FIG. 7 shows a flowchart of wireless communication method according to an embodiment of the present disclosure.
FIG. 8 shows a flowchart of wireless communication method according to an embodiment of the present disclosure.
FIG. 9 shows a flowchart of wireless communication method according to an embodiment of the present disclosure.
FIG. 10 shows a flowchart of wireless communication method according to an embodiment of the present disclosure.
When the TDD (time division multiplex) configuration of a wireless communication system is configured for both gNB (gNodeB) and UE (user equipment) , a CG (configured grant) occasion configuration can be adopted, and the collision between the CG occasions and DL (downlink) slots or symbols may be avoided. However, the configurations from multiple functions or models (e.g., the TDD configuration, the CG configuration, the SFI (slot format indication) configuration, the SSB (SS/PBCH block) configuration etc. ) may not match very well.
In some embodiments of the present disclosure, a handling mechanism is discussed in case of a collision between the UCI (uplink control information) resource or CG occasion and the downlink slots or symbols. With such a mechanism, the wireless communication system can be more robust.
For example, for a CG occasion for PUSCH (physical uplink shared channel) transmission, if the resource is determined to be invalid according to certain rules, the transmission may be cancelled or postponed. In addition, for a UCI (Uplink Control Information) resource intended for a UCI transmission, if the resource is determined to be invalid according to predetermined criteria, the UCI transmission may not be cancelled, since the UCI transmission may be essential for releasing over-configured CG resources.
FIG. 1 shows an example, in which “D” denotes a downlink (DL) subframe, “U” denotes an uplink (UL) subframe, and “O” denotes a CG occasion.
In FIG. 1 the third CG occasion (marked in bold) is considered as an invalid CG resource, since the third CG occasion conflicts with a downlink subframe. Hereinafter, such an invalid CG resource may also be referred to as a conflict resource, a collided resource, or an overlapped resource.
In response, the UE may cancel the transmission at this occasion. The UE may start the transmission at the next valid CG occasion.
FIG. 2 shows another example, in which “D” denotes a downlink (DL) subframe, “U” denotes an uplink (UL) subframe, and “O” denotes a CG occasion for transmitting UCI.
In FIG. 2, the UCI resource (marked in bold) is considered as being invalid, since the UCI resource conflicts with a downlink subframe.
In response, the UE may not cancel the UCI transmission. The UE may transmit the UCI at a first UL symbol of the closest valid UL resource.
In some embodiments, for the configured grant (CG) configuration, periodic UL resources may be pre-configured via RRC signalling, and once the activation DCI activates the CG configuration, other DCI (UL grant) is not needed for a UL resource allocation.
In an embodiment, if a CG PUSCH collides with a DCI grant or a semi-static DL symbol, the CG PUSCH may not be transmitted by the UE.
In an embodiment, for a CG PUSCH, if a dynamic SFI is not configured and if a repetition conflicts with a semi-static DL symbol, the repetition may not be transmitted by the UE.
In an embodiment, for a CG PUSCH, if a dynamic SFI is configured and received and if a repetition conflicts with a dynamic DL/flexible symbol, the repetition may not be transmitted by the UE.
In an embodiment, for a CG PUSCH, if a dynamic SFI is configured and not received and if a repetition conflicts with a semi-static DL/flexible symbol, the repetition may not be transmitted by the UE.
In some examples, as shown in FIG. 3, a UCI resource for transmitting UCI is in a reserved or pre-configured resource (e.g., a PUSCH) to release the over-configured resource. In some examples, as shown in FIG. 4, a UCI resource is in a control channel (e.g., a PUCCH) to release the over-configured resource.
In an embodiment, in order to avoid potential collisions between the UCI resource/CG occasion and the downlink slots/symbols, a mechanism of determining an invalid UCI resource/CG occasion is provided, and corresponding UE behaviours are provided. In an embodiment, the UE transmits UCI at a first UL symbol of the closest valid UL resource.
Embodiment 1
There may be multiple CG occasions in a period for a single CG configuration. The UCI may be conveyed at a UCI resource (e.g., a UL resource, such as a PUCCH resource or a CG PUSCH resource) for releasing an unused or over-configured resource within a period. There may exist, e.g., the following resource collision cases:
Case 1:
In an embodiment, when a collision between the UCI resource and a semi-static configured resource happens, the UE may determine the UCI resource is invalid, (e.g., invalid symbol (s) ) , and cannot convey the UCI.
For example, the UE may determine a symbol indicated as a downlink resource as the invalid resource (e.g., invalid symbol) , which may include at least one of:
- a symbol that is indicated as a downlink symbol by the parameter tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated;
- symbols indicated as the resource of SS/PBCH blocks; or
- symbols configured to receive the PDCCH, PDSCH, or CSI-RS on the reference cell (e.g., the serving cell of the UE) .
Case 2:
In an embodiment, when a collision between the resource conveying UCI and the dynamic scheduled downlink resource/channel (e.g., the PDSCH or RS (reference signal) ) occurs, the UE may determine the invalid resource (e.g., symbol (s) ) as follows:
– when a symbol in configured UL resources that has a time gap after a dynamic scheduled DL symbol (e.g., PDSCH) , and the time gap being less than a predetermined time threshold (e.g., N_gap symbols, and N_gap is an integer) , such a symbol may be determined as an invalid symbol. In an embodiment, the predetermined time threshold may be determined by a UE processing capability, e.g., by determining N_gap symbol (s) (with a given Subcarrier spacing) for a normal XR UE device. In an embodiment, N_gap=2, when the Subcarrier spacing = 30kHz.
In the invalid symbols, the UCI is not transmitted.
Case 3:
In the following paragraphs, the UE’s behaviours when the UCI resource is determined to be invalid are provided.
In an embodiment, when the UCI resource is determined to be invalid, the UE may not cancel the UCI transmission. The UE may transmit the UCI at the first UL symbol of the closest valid UL resource after the overlapped resource.
In an embodiment, the UCI is transmitted at the PUCCH or the PUSCH resource.
For example, in an embodiment, the UE may select a dedicated PUCCH resource to transmit the UCI first. Subsequently, if the UE determines the selected PUCCH resource is invalid, the UE may select the next dedicated PUCCH resource after the overlapped resource for the UCI transmission.
As another example, in an embodiment, the UE may select a PUSCH resource to transmit the UCI first. Subsequently, if the UE determines the selected PUSCH resource is invalid, the UE may select the next PUSCH resource (e.g., the next PUSCH occasion) after the overlapped resource for the UCI transmission.
As another example, in an embodiment, the UE may select a PUCCH resource to transmit the UCI first. Subsequently, if the UE determines the selected PUCCH resource is invalid, the UE may select the closest PUSCH resource (e.g., a closest PUSCH occasion) after the overlapped resource for the UCI transmission.
In an embodiment, the UE transmits the UCI when at least one of following conditions is met:
one or more redundant CG UL occasions exist;
a DL resource is before or in a period of one or more redundant CG UL occasions; or
a time gap between the valid UCI resource for transmitting the UCI and the first one of the one or more redundant CG UL occasions is not less than a predetermined threshold (e.g., N*2^u slots, where N and u are integers) . In an embodiment, N*2^u contains the processing time and the UL scheduling delay. In an embodiment, N = (1, 2, 3, 4) , wherein u=0, when Subcarrier spacing = 15 kHz; u=1, when Subcarrier spacing = 30 kHz; u=2, when Subcarrier spacing = 60 kHz; u=3, when Subcarrier spacing = 120 kHz; etc. In an embodiment, the predetermined threshold is N2 milliseconds. N2 is an integer.
In an embodiment, the UE may not transmit the UCI transmission when the UCI resource is invalid.
In an embodiment, the UE may determine the first UL symbol of the closest valid UL resource after the overlapped resource, which have no or less collisions with other UEs or UL transmission.
Step 1: The UE may identify the valid UL symbols closest to the invalid UCI resource (i.e., the overlapped resource) described above.
Step 2: In an embodiment, the UE may determine that the first UL symbol can be the UL symbol that is available for the UCI transmission only, with a given frequency resource (e.g., the first UL symbol is the first dedicated PUCCH symbol after the overlapped resource) , and determine the first UL symbol among the valid UL symbols identified in Step 1.
In an embodiment, the UE may determine that the first UL symbol can be the UL symbol that is available for the UCI transmission, with a given frequency resource (e.g., the UCI may be multiplexed with data, and the first UL symbol may be the first symbol of a CG PUSCH occasion after the overlapped resource) , and determine the first UL symbol among the valid UL symbols identified in Step 1.
In an embodiment, for the UE’s bandwidth at the UL symbol, the resource may be a UE specific resource, and the resource may not be occupied by another UL signal transmission.
In an embodiment, the UCI indicates to release N CG occasions, wherein N CG occasions do not comprise count invalid CG occasion (s) . In an embodiment, the UCI indicates an index of a CG UL occasion, and the occasion (s) after the indicated CG occasion are released.
In an embodiment, the UCI indicates to release CG occasions regardless whether the CG occasion is valid or invalid. In an embodiment, the UCI indicates that none CG PUSCH occasion is released. In and embodiment, the UCI consists of X bits (X is an integer) , and X denotes the number of unused CG PUSCH occasions. In this sense, assume that the number of CG PUSCH occasions in a period is 2 ^(X-1) + 1 to 2^X.
Case 4:
In an embodiment, the UE may determine that the UCI resource is valid according to following rules:
- if a UE is not provided with the tdd-UL-DL-ConfigurationCommon, a UCI resource is valid if the occasion does not conflict with a SS/PBCH block in the PUSCH slot, and starts at a symbol at least N_gap symbols after a last SS/PBCH block symbol.
- if a UE is provided with the tdd-UL-DL-ConfigurationCommon, a UCI resource is valid if the occasion is in a duration of the UL symbols, and starts at a symbol at least N_gap symbols after a last downlink symbol and at least N_gap symbols after a last SS/PBCH block symbol.
Embodiment 2
Case 1
In an embodiment, if there are multiple CG occasions in a period for a single CG configuration, the UE may determine invalid symbol (s) for the CG PUSCH transmission as follows:
In an embodiment, the UE may determine one or more symbols indicated as the downlink resource as the invalid symbol (s) , such as:
- a symbol that is indicated as downlink by the tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated is considered as an invalid symbol;
- symbols indicated as the resource of the SS/PBCH blocks are considered as invalid symbols; and/or
- symbols configured to receive the PDCCH, PDSCH, or CSI-RS on the reference cell, are considered as invalid symbols.
In an embodiment, the time gap between the UL symbol and a DL symbol (e.g., SSB symbol) ahead, may be less than N_gap symbols. N_gap may be determined by a UE processing capability, e.g., by determining N_gap symbol (s) (with a given subcarrier spacing) for the normal XR UE device.
Case 2
In an embodiment, for XR-specific scenarios, signalling indicates that a certain CG occasion is invalid. Some examples are provided below.
In an embodiment, the de-activating signaling denotes multiple CG occasions in an activation period (e.g., a PDCCH monitoring period) are invalid. In an embodiment, the de-activating signaling reconfigured the CG PUSCH occasion in an activation period. In an embodiment, the the de-activating signaling may not be activated out of a period of time.
In an embodiment, the CG occasions may not be deactivated via the de-activating signaling, but the partial CG resource or the whole CG resource may be considered as invalid if the UE receives an UL grant, wherein the UL grant is configured for scheduling the resources.
In an embodiment, for multiple UEs, the UE may receive common signaling that indicates that a CG occasion is invalid. The common signaling is signaled to multiple UEs, which indicates to each UE whether a CG occasion is invalid. In another embodiment, the common signaling reconfigure the CG PUSCH occasions of multiple UEs.
In an embodiment, the DCI may indicate that a corresponding symbol is an invalid symbol.
Case 3
In an embodiment, for CG PUSCHs in a period, if a dynamic SFI is not configured, and if UL data in a CG UL resource conflicts with a semi-static DL symbol, the UL data is not transmitted.
In an embodiment, for CG PUSCHs in a period, if a dynamic SFI is configured and received, and if UL data in a CG UL resource conflicts with a dynamic DL or flexible symbol, the UL data may not be transmitted. In an embodiment, if UL data in a CG UL resource conflicts with a dynamic DL and/or a flexible symbol, the UE may feedback assistance information (e.g., resource request information requesting for a new resource) to the gNB.
In an embodiment, for CG PUSCHs in a period, if a dynamic SFI is configured and not received, and if UL data in a CG UL resource conflicts with a semi-static DL and/or flexible symbol, the UL data is not transmitted.
FIG. 5 relates to a schematic diagram of a wireless terminal 50 according to an embodiment of the present disclosure. The wireless terminal 50 may be a user equipment (UE) , a mobile phone, a laptop, a tablet computer, an electronic book or a portable computer system and is not limited herein. The wireless terminal 50 may include a processor 500 such as a microprocessor or Application Specific Integrated Circuit (ASIC) , a storage unit 510 and a communication unit 520. The storage unit 510 may be any data storage device that stores a program code 512, which is accessed and executed by the processor 500. Embodiments of the storage unit 512 include but are not limited to a subscriber identity module (SIM) , read-only memory (ROM) , flash memory, random-access memory (RAM) , hard-disk, and optical data storage device. The communication unit 520 may a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 500. In an embodiment, the communication unit 520 transmits and receives the signals via at least one antenna 522 shown in FIG. 5.
In an embodiment, the storage unit 510 and the program code 512 may be omitted and the processor 500 may include a storage unit with stored program code.
The processor 500 may implement any one of the steps in exemplified embodiments on the wireless terminal 50, e.g., by executing the program code 512.
The communication unit 520 may be a transceiver. The communication unit 520 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a wireless network node (e.g., a base station) .
FIG. 6 relates to a schematic diagram of a wireless network node 60 according to an embodiment of the present disclosure. The wireless network node 60 may be a satellite, a base station (BS) , a network entity, a Mobility Management Entity (MME) , Serving Gateway (S-GW) , Packet Data Network (PDN) Gateway (P-GW) , a radio access network (RAN) node, a next generation RAN (NG-RAN) node, a gNB, an eNB, a gNB central unit (gNB-CU) , a gNB distributed unit (gNB-DU) a data network, a core network or a Radio Network Controller (RNC) , and is not limited herein. In addition, the wireless network node 60 may comprise (perform) at least one network function such as an access and mobility management function (AMF) , a session management function (SMF) , a user place function (UPF) , a policy control function (PCF) , an application function (AF) , etc. The wireless network node 60 may include a processor 600 such as a microprocessor or ASIC, a storage unit 610 and a communication unit 620. The storage unit 610 may be any data storage device that stores a program code 612, which is accessed and executed by the processor 600. Examples of the storage unit 612 include but are not limited to a SIM, ROM, flash memory, RAM, hard-disk, and optical data storage device. The communication unit 620 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 600. In an example, the communication unit 620 transmits and receives the signals via at least one antenna 622 shown in FIG. 6.
In an embodiment, the storage unit 610 and the program code 612 may be omitted. The processor 600 may include a storage unit with stored program code.
The processor 600 may implement any steps described in exemplified embodiments on the wireless network node 60, e.g., via executing the program code 612.
The communication unit 620 may be a transceiver. The communication unit 620 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a wireless terminal (e.g., a user equipment or another wireless network node) .
A wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication terminal (e.g., a UE) . In an embodiment, the wireless communication terminal may be implemented by using the wireless communication terminal 50 described above, but is not limited thereto.
Referring to FIG. 7, in an embodiment, the wireless communication method includes: determining, by a wireless communication terminal, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and transmitting, by the wireless communication terminal to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.
Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
Another wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication terminal (e.g., a UE) . In an embodiment, the wireless communication terminal may be implemented by using the wireless communication terminal 50 described above, but is not limited thereto.
Referring to FIG. 8, in an embodiment, the wireless communication method includes: determining, by a wireless communication terminal, an uplink, UL, resource for transmitting uplink data to be invalid; and refraining from transmitting, by the wireless communication terminal to a wireless communication node, the uplink data in the uplink, UL, resource in response to the UL resource being determined to be invalid.
Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
Another wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication node (e.g., a gNB or BS) . In an embodiment, the wireless communication node may be implemented by using the wireless communication node 60 described above, but is not limited thereto.
Referring to FIG. 9, in an embodiment, the wireless communication method includes in response to an uplink, UL, resource for transmitting Uplink Control Information, UCI, being determined by a wireless communication terminal as invalid, receiving, by a wireless communication node from the wireless communication terminal, the UCI in a valid UL resource.
Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
Another wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication node (e.g., a gNB or BS) . In an embodiment, the wireless communication node may be implemented by using the wireless communication node 60 described above, but is not limited thereto.
Referring to FIG. 10, in an embodiment, the wireless communication method includes in response to an uplink, UL, resource for transmitting uplink, UL, data being determined by a wireless communication terminal as invalid, refraining from receiving, by a wireless communication node from the wireless communication terminal, the UL data in the UL resource.
Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
While various embodiments of the present disclosure 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 exemplary features and functions of the present disclosure. Such persons would understand, however, that the present disclosure 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 one of the above-described exemplary 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 one 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 skilled person would further appreciate that any one of the various illustrative logical blocks, units, 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 unit” ) , or any combination of these techniques.
To clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, 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. In accordance with various embodiments, a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein. The term “configured to” or “configured for” as used herein with respect to a specified operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and/or arranged to perform the specified operation or function.
Furthermore, a skilled person would understand that various illustrative logical blocks, units, 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, units, 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 "unit" 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 units are described as discrete units; however, as would be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.
Additionally, memory or other storage, as well as communication components, may be employed in embodiments of the present disclosure. It will be appreciated that, for clarity purposes, the above description has described embodiments of the present disclosure 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 disclosure. 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 the claims. 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:

determining, by a wireless communication terminal, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and

transmitting, by the wireless communication terminal to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.
The wireless communication method of claim 1, wherein the UL resource determined to be invalid comprises one or more symbols in configured UL resources that conflicting with one or more configured downlink, DL, resources in a DL configuration.
The wireless communication method of claim 1 or 2, wherein the UL resource determined to be invalid comprises at least one of:

a symbol in configured UL resources that is indicated as a downlink symbol;

a symbol in configured UL resources that is indicated as a resource of a synchronization signal physical broadcast channel, SS/PBCH, block; or

a symbol in configured UL resources that is configured to receive a physical downlink control channel, PDCCH, a physical downlink shared channel, PDSCH, or a channel status information reference signal, CSI-RS, on a reference cell.
The wireless communication method of any of claims 1 to 3, wherein the UL resource determined to be invalid comprises at least one of:

a symbol in configured UL resources that has a time gap with a dynamic scheduled DL resource, and the time gap being less than a predetermined time threshold.
The wireless communication method of any of claims 1 to 4, wherein the wireless communication terminal transmits the UCI at a first UL symbol of the valid UL resource, and wherein the valid UL resource is an available UL resource closest to the UL resource determined to be invalid.
The wireless communication method of claim 5, wherein the UL resource determined to be invalid is a physical uplink control channel, PUCCH, resource, and the UCI is transmitted in the first UL symbol in a PUCCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a physical uplink shared channel, PUSCH, resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a PUCCH resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource closest to the UL resource determined to be invalid.
The wireless communication method of claim 5 or 6, wherein the wireless communication terminal transmits the UCI in response to at least one of the following conditions being met:

one or more redundant configured grant, CG, UL occasions exist;

a DL resource is before or in a period of one or more redundant CG UL occasions; or

a time gap between a DL resource in a period of one or more redundant CG UL occasions and the valid UL resource for transmitting the UCI is not less than a predetermined threshold.
The wireless communication method of any of claims 5 to 7, wherein the first UL symbol of the valid UL resource is a symbol only for transmitting the UCI or is a symbol for transmitting the UCI and UL data.
The wireless communication method of any of claims 5 to 8, wherein the first UL symbol of the valid UL resource is a dedicated PUCCH symbol only for transmitting the UCI or is a first symbol of a PUSCH occasion operable to transmit both of the UCI and the UL data.
The wireless communication method of any of claims 1 to 9, wherein the UCI indicates releasing a certain number of CG UL occasions.
The wireless communication method of any of claims 1 to 10, wherein the UCI indicates an index of a CG UL occasion.
The wireless communication method of any of claims 1 to 11, wherein the wireless communication terminal determines a UCI resource is valid in response to the UCI resource satisfying at least one of:

the UCI resource does not precede by a SS/PBCH block in a PUSCH in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;

a gap between the UCI resource and a last SS/PBCH block before the UCI resource is larger than a predetermined threshold in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;

the UCI resource is within one or more UL symbols in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon; or

a gap between the UCI resource and a last SS/PBCH block before the UCI resource and a gap between the UCI resource and a last DL symbol are both larger than a predetermined threshold in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon.
A wireless communication method comprising:

determining, by a wireless communication terminal, an uplink, UL, resource for transmitting uplink data to be invalid; and

refraining from transmitting, by the wireless communication terminal to a wireless communication node, the uplink data in the uplink, UL, resource in response to the UL resource being determined to be invalid.
The wireless communication method of claim 13, wherein the UL resource determined to be invalid comprises at least one of:

one or more configured grant, CG, occasions being indicated as invalid in an activation period by a de-activating signal;

a CG resource being scheduled by a UL grant;

a CG resource being indicated as invalid by common signaling; or

a CG resource being indicated as invalid by Downlink Control Information, DCI.
The wireless communication method of claim 13 or 14, wherein the wireless communication terminal transmits assistance information to the wireless communication node in response to the UL resource for transmitting the uplink data being determined as invalid.
The wireless communication method of claim 15, wherein the UL resource for transmitting the uplink data is determined as valid or invalid in response to the UL resource conflicting with a dynamic downlink, DL, symbol or a flexible symbol.
The wireless communication method of claim 15 or 16, wherein the assistance information comprises resource request information requesting a new UL resource.
A wireless communication method comprising:

in response to an uplink, UL, resource for transmitting Uplink Control Information, UCI, being determined by a wireless communication terminal as invalid, receiving, by a wireless communication node from the wireless communication terminal, the UCI in a valid UL resource.
The wireless communication method of claim 18, wherein the UL resource determined to be invalid comprises one or more symbols in configured UL resources that conflicting with one or more configured downlink, DL, resources in a DL configuration.
The wireless communication method of claim 18 or 19, wherein the UL resource determined to be invalid comprises at least one of:

a symbol in configured UL resources that is indicated as a downlink symbol;

a symbol in configured UL resources that is indicated as a resource of a synchronization signal physical broadcast channel, SS/PBCH, block; or

a symbol in configured UL resources that is configured to receive a physical downlink control channel, PDCCH, a physical downlink shared channel, PDSCH, or a channel status information reference signal, CSI-RS, on a reference cell.
The wireless communication method of any of claims 18 to 20, wherein the UL resource determined to be invalid comprises at least one of:

a symbol in configured UL resources that has a time gap with a dynamic scheduled DL resource, and the time gap being less than a predetermined time threshold.
The wireless communication method of any of claims 1 to 21, wherein the wireless communication terminal transmits the UCI at a first UL symbol of the valid UL resource, and wherein the valid UL resource is an available UL resource closest to the UL resource determined to be invalid.
The wireless communication method of claim 22, wherein the UL resource determined to be invalid is a physical uplink control channel, PUCCH, resource, and the UCI is transmitted in the first UL symbol in a PUCCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a physical uplink shared channel, PUSCH, resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource next to the UL resource determined to be invalid; or the UL resource determined to be invalid is a PUCCH resource, and the UCI is transmitted in the first UL symbol in a PUSCH resource closest to the UL resource determined to be invalid.
The wireless communication method of claim 22 or 23, wherein the wireless communication terminal transmits the UCI in response to at least one of the following conditions being met:

one or more redundant configured grant, CG, UL occasions exist;

a DL resource is before or in a period of one or more redundant CG UL occasions; or

a time gap between a DL resource in a period of one or more redundant CG UL occasions and the valid UL resource for transmitting the UCI is not less than a predetermined threshold.
The wireless communication method of any of claims 22 to 24, wherein the first UL symbol of the valid UL resource is a symbol only for transmitting the UCI or is a symbol for transmitting the UCI and UL data.
The wireless communication method of any of claims 22 to 25, wherein the first UL symbol of the valid UL resource is a dedicated PUCCH symbol only for transmitting the UCI or is a first symbol of a PUSCH occasion operable to transmit both of the UCI and the UL data.
The wireless communication method of any of claims 18 to 26, wherein the UCI indicates releasing a certain number of CG UL occasions.
The wireless communication method of any of claims 18 to 27, wherein the UCI indicates an index of a CG UL occasion.
The wireless communication method of any of claims 18 to 28, wherein the wireless communication terminal determines a UCI resource is valid in response to the UCI resource satisfying at least one of:

the UCI resource does not precede by a SS/PBCH block in a PUSCH in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;

a gap between the UCI resource and a last SS/PBCH block before the UCI resource is larger than a predetermined threshold in response to that the wireless communication terminal is not provided with a parameter tdd-UL-DL-ConfigurationCommon;

the UCI resource is within one or more UL symbols in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon; or

a gap between the UCI resource and a last SS/PBCH block before the UCI resource and a gap between the UCI resource and a last DL symbol are both larger than a predetermined threshold in response to that the wireless communication terminal is provided with a parameter tdd-UL-DL-ConfigurationCommon.

the UCI in a valid UL resource in response to the scheduled UL resource being determined to be invalid.

determining, by a wireless communication node, an uplink, UL, resource for transmitting uplink data to be invalid; and

transmitting, by the wireless communication terminal to the wireless communication node, the UCI in a valid UL resource in response to the scheduled UL resource being determined to be invalid.
A wireless communication method comprising:

in response to an uplink, UL, resource for transmitting uplink, UL, data being determined by a wireless communication terminal as invalid, refraining from receiving, by a wireless communication node from the wireless communication terminal, the UL data in the UL resource.
The wireless communication method of claim 30, wherein the UL resource determined to be invalid comprises at least one of:

one or more configured grant, CG, occasions being indicated as invalid in an activation period by a de-activating signal;

a CG resource being scheduled by a UL grant;

a CG resource being indicated as invalid by common signaling; or

a CG resource being indicated as invalid by Downlink Control Information, DCI.
The wireless communication method of claim 30 or 31, wherein the wireless communication terminal transmits assistance information to the wireless communication node in response to the UL resource for transmitting the uplink data being determined as invalid.
The wireless communication method of claim 32, wherein the UL resource for transmitting the uplink data is determined as valid or invalid in response to the UL resource conflicting with a dynamic downlink, DL, symbol or a flexible symbol.
The wireless communication method of claim 32 or 33, wherein the assistance information comprises resource request information requesting a new UL resource.
A wireless communication terminal, comprising:

a communication unit; and

a processor configured to: determine, an uplink, UL, resource for transmitting Uplink Control Information, UCI, to be invalid; and transmit, to a wireless communication node, the UCI in a valid UL resource in response to the UL resource being determined to be invalid.
The wireless communication terminal of claim 35, wherein the processor is further configured to perform a wireless communication method of any of claims 2 to 12.
A wireless communication terminal, comprising:

a communication unit; and

a processor configured to: determine an uplink, UL, resource for transmitting uplink data to be invalid; and refrain from transmitting, to a wireless communication node, the uplink data in the uplink, UL, resource in response to the UL resource being determined to be invalid.
The wireless communication terminal of claim 37, wherein the processor is further configured to perform a wireless communication method of any of claims 14 to 17.
A wireless communication node, comprising:

a communication unit; and

a processor configured to: in response to an uplink, UL, resource for transmitting Uplink Control Information, UCI, being determined by a wireless communication terminal as invalid, receive, from the wireless communication terminal, the UCI in a valid UL resource.
The wireless communication node of claim 39, wherein the processor is further configured to perform a wireless communication method of any of claims 19 to 29.
A wireless communication node, comprising:

a communication unit; and

a processor configured to: in response to an uplink, UL, resource for transmitting uplink, UL, data being determined by a wireless communication terminal as invalid, refrain from receiving, from the wireless communication terminal, the UL data in the UL resource.
The wireless communication node of claim 41, wherein the processor is further configured to perform a wireless communication method of any of claims 31 to 34.
A computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any one of claims 1 to 34.