Determination of physical channel transmissions
Patent Information
- Application Number
- PCT/CN2025/085529
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-10-01
Smart Images

Figure CN2025085529_01102026_PF_FP_ABST
Abstract
Description
DETERMINATION OF PHYSICAL CHANNEL TRANSMISSIONSFIELD
[0001] Various example embodiments generally relate to the field of communication, and in particular, to a terminal device, a network device, methods, apparatuses and a computer readable storage medium related to determination of physical channel transmissions.BACKGROUND
[0002] A communication network can be seen as a facility that enables communications between two or more communication devices, or provides communication devices access to a data network. A mobile or wireless communication network is one example of a communication network.
[0003] Such communication networks operate in according with standards such as those provided by 3GPP (Third Generation Partnership Project) or ETSI (European Telecommunications Standards Institute) . Examples of standards are the so-called 5G (5th Generation) standards provided by 3GPP.SUMMARY
[0004] In general, example embodiments of the present disclosure provide a solution for determining physical channel transmissions. For example, the solution can determine to transmit one of physical uplink shared channel (PUSCH) repetitions or physical uplink control channel (PUCCH) repetitions which is scheduled to start earlier than the other one. By implementing the example embodiments of the present disclosure, it can enable an effective collision handling in case of PUSCH repetitions and thus can avoid performance degradation.
[0005] In a first aspect, there is provided a terminal device. The terminal device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to: determine first scheduling information for scheduling first physical channel transmission with repetitions; determine second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; determine one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; and transmit, to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0006] In a second aspect, there is provided a network device. The network device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to: transmit, to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; transmit, to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; and receive, from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0007] In a third aspect, there is provided a method. The method comprises: determining, at a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; determining, at the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; determining, at the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; and transmitting, at the terminal device to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0008] In a fourth aspect, there is provided a method. The method comprises: transmitting, at a network device to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; transmitting, at the network device to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; and receiving, at the network device from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0009] In a fifth aspect, there is provided an apparatus. The apparatus comprises: means for determining, at a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; means for determining, at the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; means for determining, at the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; and means for transmitting, at the terminal device to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0010] In a sixth aspect, there is provided an apparatus. The apparatus comprises: means for transmitting, at a network device to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; means for transmitting, at the network device to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; and means for receiving, at the network device from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0011] In a seventh aspect, there is provided a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to the third or fourth aspect.
[0012] In an eighth aspect, there is provided a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus to perform at least the method according to the third or fourth aspect.
[0013] In a ninth aspect, there is provided a terminal device. The terminal device comprises first determining circuitry configured to determine first scheduling information for scheduling first physical channel transmission with repetitions; second determining circuitry configured to determine second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; third determining circuitry configured to determine one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; and transmitting circuitry configured to transmit, to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0014] In a tenth aspect, there is provided a network device. The network device comprises first transmitting circuitry configured to transmit, to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; second transmitting circuitry configured to transmit, to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; and receiving circuitry configured to receive, from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0015] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Some example embodiments will now be described with reference to the accompanying drawings, in which:
[0017] FIG. 1A illustrates example network environment in which example embodiments of the present disclosure may be implemented;
[0018] FIG. 1B illustrates example PUSCH repetitions with OCC;
[0019] FIG. 1C illustrates an example of PUCCH repetitions partly overlapping with PUSCH repetitions;
[0020] FIG. 1D illustrates an example of dropping all PUSCH repetitions of the OCC period where the collision occurs;
[0021] FIG. 2A illustrates an example signaling process of determining physical channel transmissions in accordance with some example embodiments of the present disclosure;
[0022] FIG. 2B illustrates another example signaling process of determining physical channel transmissions in accordance with some example embodiments of the present disclosure;
[0023] FIG. 3 illustrates an example of dropping PUSCH repetitions which starts later than PUCCH repetitions in accordance with some example embodiments of the present disclosure;
[0024] FIG. 4 illustrates an example signaling diagram of determining to transmit PUCCH with repetitions which starts earlier than PUSCH with repetitions in accordance with some example embodiments of the present disclosure;
[0025] FIG. 5 illustrates an example flowchart of a method for determining physical channel transmissions implemented at a terminal device in accordance with some example embodiments of the present disclosure;
[0026] FIG. 6 illustrates an example flowchart of a method for determining physical channel transmissions implemented at a network device in accordance with some example embodiments of the present disclosure;
[0027] FIG. 7 illustrates an example simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure; and
[0028] FIG. 8 illustrates an example block diagram of an example computer readable medium in accordance with some embodiments of the present disclosure.
[0029] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0030] Principles of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and to help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.
[0031] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which the present disclosure belongs.
[0032] References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0033] It may be understood that although the terms “first” and “second” etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0034] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
[0035] As used in this application, the term “circuitry” may refer to one or more or all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and (b) combinations of hardware circuits and software, such as (as applicable) : (i) a combination of analog and / or digital hardware circuit (s) with software / firmware and (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and (c) hardware circuit (s) and or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
[0036] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
[0037] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as long term evolution (LTE) , LTE-advanced (LTE-A) , wideband code division multiple access (WCDMA) , high-speed packet access (HSPA) , narrow band Internet of things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, the 6G communication protocols and / or beyond. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
[0038] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a remote radio unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
[0039] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a subscriber station (SS) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) . The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial, a relay node, an integrated access and backhaul (IAB) node, and / or industrial wireless networks, and the like. In the following description, the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
[0040] As used herein, the term “resource” , “transmission resource” , “resource block” , “physical resource block” (PRB) , “uplink (UL) resource” or “downlink (DL) resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, a resource in a combination of more than one domain or any other resource enabling a communication, and the like. In the following, a resource in time domain (such as, a subframe) will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
[0041] Orthogonal cover codes (OCC) is a coding technique that can be utilized to augment the capacity / throughput of a cellular network. Specifically, it involves generating a set of orthogonal codes, such as Walsh-Hadamard codes, with zero cross-correlation, and assigning distinct codes to different UEs to achieve orthogonal (i.e., interference-free) UL transmissions on the same time-frequency resources.
[0042] In RAN #102, an objective on UL capacity / throughput enhancement for FR1-non-terrestrial networks (NTN) was approved. This objective targets enhancements to the discrete Fourier transform (DFT) -s-orthogonal frequency division multiplexing (OFDM) PUSCH channel via OCC to enable multiplexing of multiple UEs in the same time-frequency resources. The study on this objective can consider OCC across OFDM symbols, across slots, and / or within an OFDM symbol.
[0043] When transmitting PUSCH with repetitions encoded with OCC and transmitting PUCCH with repetitions, a collision may occur, specifically on the OCC application across intra-slot or inter-slot PUSCH repetitions, i.e., across OFDM symbols and across slots. Therefore, there is a need to propose a collision handling mechanism between PUCCH repetitions and PUSCH repetitions with OCC.
[0044] Therefore, example embodiments of the present disclosure provide a solution for determining a physical channel transmission with repetitions which is scheduled to start earlier than another physical channel transmission with repetitions at least partly overlapping with the physical channel transmission with repetitions. In this way, an effective collision handling mechanism in case of PUSCH repetitions can be enabled, and thus performance degradation can be avoided.
[0045] For illustrative purposes, principles and example embodiments of the present disclosure of determining physical channel transmissions will be described below with reference to FIG. 1A-FIG. 8. However, it is to be noted that these embodiments are given to enable the skilled in the art to understand inventive concepts of the present disclosure and implement the solution as proposed herein, and not intended to limit scope of the present application in any way.
[0046] Reference is made to FIG. 1A, which illustrates an example of a communication network 100A in which some example embodiments of the present disclosure may be implemented. As illustrated in FIG. 1A, the communication system 100A may comprise a terminal device 102 (hereinafter may also be referred to as UE 102) , a terminal device 106 (hereinafter may also be referred to as UE 106) , and a network device 104 (or referred to as a based station 104 or a gNB 104) .
[0047] The network device 104 can manage a cell 101. The terminal device 102 or the terminal device 106 can communicate with the network device 104 within the coverage of the cell 101. The terminal device 102 can communicate with the terminal device 106 via the network device 104.
[0048] It is to be understood that the number of devices is only for the purpose of illustration without suggesting any limitations. The communication network 100A may include any suitable number of terminal devices or network devices adapted for implementing embodiments of the present disclosure. Although not shown, it would be appreciated that one or more terminal devices or network devices may be located in communication network 100A.
[0049] The terminal devices 102 and / or 106 and the network device 104 may communicate with each other. The network device 104 may configure and schedule the terminal devices 102 and / or 106 to transmit PUSCH repetitions and / or PUCCH repetitions. The network device 104 may also configure and schedule OCC on several PUSCH repetitions. Alternatively, PUSCH repetitions with OCC and / or PUCCH repetitions may be pre-configured for the terminal devices 102 and / or 106.
[0050] It is to be understood that the number of devices is only for the purpose of illustration without suggesting any limitations. In other words, there may be one or more network devices and one or more terminal devices in the communication network 100A. It is to be understood that the number of devices and their connection relationships and types shown in FIG. 1A are for illustrative purposes without suggesting any limitation. The communication system 100A may comprise any suitable number of devices adapted for implementing embodiments of the present disclosure.
[0051] Reference is made to FIG. 1B, which illustrates example PUSCH repetitions with OCC 100B. As shown in FIG. 1B, there are two UEs transmitting two PUSCH repetitions in the same time-frequency resources. The reference numeral 116 represents the UE 102 and the reference numeral 118 represents the UE 106. For the PUSCH transmissions, the UE 102 and the UE 106 may apply different OCCs to their transmission signal (which is assumed here to stay constant across the repetitions) allowing the gNB 104’s receiver to receive (i.e., demodulate and decode) the signals of each UE without the interference of the other UE.
[0052] In mathematical form, how this works can be represented in the system of equation (1) below (for simplicity of description, channel impairments and additive noise are not considered) . As shown, x1 may represent the signals transmitted by the UE 102 in both the first repetition 112 and the second repetition 114. x2 may represent the signals transmitted by UE 106 in both the first repetition 112 and the second repetition 114. y1 may represent the total signals received by the gNB 104 in the first repetition 112 and y2 may represent the total signals received by the gNB 104 in the second repetition 114. The relations among x1, x2, y1 and y2 may be expressed as the equation (1) :
[0053] The UE 102 may apply the OCC [1, 1] while the UE 106 may apply the OCC [1, -1] . In the example of the equation (1) , the gNB 104 may retrieve the signal of the UE 106 without interference from the UE 102 by cross-correlating the two received signal y1 and y2 with the OCC used by the UE 106 (i.e., [1, -1] ) . In a similar way, it is easy to show that the corresponding operation with cross-correlating with the OCC used by the UE 102 ( [1, 1] ) , the receiver algorithm would end up with 2*x1.
[0054] It is to be noted that example above is only illustrative and uses Walsh-Hadamard orthogonal codes as OCC set. Different sequences can be used to realize orthogonality among users without impacting the applicability of the proposed solution. In addition, it is to be noted that in general in order to multiplex N UEs, a number of at least N PUSCH (or signal) repetitions are necessary. Although the example of FIG. 1B ignores channel impairments for simplicity of description, it is to be noted that channel impairments may always affect the received signal at the network side.
[0055] Reference is made to FIG. 1C, which illustrates an example 100C of PUCCH repetitions partly overlapping with PUSCH repetitions. FIG. 1C shows a scenario of PUCCH repetitions overlapping in time with PUSCH repetitions. According to the existing specification, PUCCH repetitions are to be transmitted, while the overlapping PUSCH repetitions are to be dropped. Other non-overlapping PUSCH repetitions (if any) are still to be transmitted.
[0056] As shown in FIG. 1C, two PUCCH repetitions (PUCCH repetitions #1 and #2) overlap in time with two PUSCH repetitions (PUSCH repetitions #2 and #3) out of four PUSCH repetitions of a PUSCH transmission. The UE may drop the overlapped PUSCH repetitions #2 and #3, and the UE may still transmit the non-overlapped PUSCH repetitions #1 and #4, and may transmit the PUCCH repetitions #1 and #2.
[0057] Reference is made to FIG. 1D, which illustrates an example 100D of dropping all PUSCH repetitions of the OCC period where the collision occurs. In the case of PUSCH repetitions with OCC, the handling mechanism as shown in FIG. 1C of the collision may create problems if the dropped PUSCH repetitions is a subset of the PUSCH repetitions within an OCC period. Then, the UE may drop all PUSCH repetitions of the OCC period where the collision occurs (even if the PUCCH repetitions do not collide with all of the PUSCH repetitions of the OCC period) .
[0058] As shown in FIG. 1D, in the OCC period 140, the PUCCH repetitions 120 and 122 overlap with PUSCH repetitions with OCC 126 and 128. However, all the PUSCH repetitions with OCC 124, 126, 128 and 130 are to be dropped. In the OCC period 142, all the PUSCH repetitions with OCC 132, 134, 136 and 138 are to be transmitted because there is no collisions.
[0059] It can be seen that, the handling mechanism as shown in FIG. 1D is effective only in the case a UE is aware (e.g., scheduled) of the PUCCH repetitions before it has started transmitting the PUSCH repetitions within the overlapping OCC period. If, for example, a DCI indicating a PUCCH transmission with repetitions (as in FIGS. 1C or 1D) is scheduled after the start of the first PUSCH repetition, the UE won’ t be able anymore to drop all the PUSCH repetitions within the OCC period.
[0060] Reference is made to FIG. 2A, which illustrates an example signaling process 200A of determining physical channel transmissions in accordance with some example embodiments of the present disclosure. FIG. 2A will be described with reference to FIG. 1A.
[0061] The terminal device 102 determines (202) first scheduling information for scheduling first physical channel transmission with repetitions. For example, the terminal device 102 may receive downlink control information (DCI) for scheduling a PUSCH with repetitions. For another example, the terminal device 102 may be pre-configured for the scheduling information for scheduling PUSCH with repetitions.
[0062] The terminal device 102 determines (204) second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions. For example, the terminal device 102 may receive DCI for scheduling a PUCCH with repetitions, and the PUCCH with repetitions may partly overlap with the PUSCH with repetitions. For another example, the terminal device 102 may be pre-configured (e.g., via RRC signaling) for the scheduling information for scheduling PUCCH with repetitions.
[0063] The terminal device 102 determines (206) determine one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions. For example, the terminal device 102 may determine the PUCCH with repetitions is scheduled to start in an earlier time slot than the PUSCH with repetitions.
[0064] The terminal device 102 transmits (208) the physical channel transmission with 210 of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions to the network device 104. The network device 104 may receive (212) the physical channel transmission with 210. For example, the terminal device 102 may transmit the PUCCH with repetitions to the network device 104.
[0065] Reference is made to FIG. 2B, which illustrates an example signaling process 200B of determining physical channel transmissions in accordance with some example embodiments of the present disclosure. FIG. 2B will be described with reference to FIG. 1A.
[0066] The network device 104 transmits (214) first scheduling information 216 for scheduling first physical channel transmission with repetitions. The terminal device 102 receives (218) the first scheduling information 216. For example, the first scheduling information 216 may be a UL DCI scheduling PUSCH with repetitions.
[0067] The network device 104 transmits (220) second scheduling information 222 for scheduling second physical channel transmission with repetitions. The terminal device 102 receives (224) the second scheduling information 222. For example, the second scheduling information 222 may be a DL DCI scheduling PUCCH with repetitions (e.g., for HARQ-ACK feedback) partly overlapping with the PUSCH with repetitions but with earlier starting time (e.g., in an earlier time slot) .
[0068] The terminal device 102 determines (226) determine one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions. For example, the terminal device 102 may determine the PUCCH with repetitions is scheduled to start earlier than the PUSCH with repetitions.
[0069] The terminal device 102 transmits (228) the physical channel transmission with 230 of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions to the network device 104. The network device 104 may receive (232) the physical channel transmission with 230. For example, the terminal device 102 may transmit the PUCCH with repetitions to the network device 104.
[0070] In some example embodiments, the terminal device 102 may refrain from transmitting, to the network device 104, the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions. For example, the terminal device 102 may not transmit any repetition of the physical channel which starts later.
[0071] In some example embodiments, the terminal device 102 may transmit, to the network device, a portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions. For example, the terminal device 102 may not transmit part of the repetitions of the physical channel which starts later.
[0072] In some example embodiments, based on determining that the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions comprises the PUSCH repetitions encoded with OCC, the terminal device 102 may transmit, to the network device 104, a portion of the PUSCH repetitions encoded with OCC which does not overlap with the PUCCH repetitions. For example, if the physical channel transmission starting later is the PUSCH transmission with repetitions and OCC, the terminal device 102 may drop the repetitions of the partly or fully overlapped OCC period (s) or the overlapped OCC group (s) . A partly overlapped OCC group may be defined so that only part of the PUSCH repetitions within the OCC group are overlapped with the PUCCH repetitions.
[0073] In some example embodiments, the terminal device 102 may receive a configuration for configuring which physical channel transmission with repetitions is to be dropped under a condition that the first physical channel transmission with repetitions and the second physical channel transmission with repetitions are scheduled to start at a same time; or an indication of which physical channel transmission with repetitions is to be dropped under the condition. For example, the network device 104 may configure or indicate which physical channel transmission to drop.
[0074] In some example embodiments, the configuration for configuring which physical channel transmission with repetitions is to be dropped may be transmitted via a radio resource control (RRC) signaling. In some example embodiments, the indication of which physical channel transmission with repetitions is to be dropped may be transmitted via a media access control (MAC) control element (CE) signaling or a DCI signaling, for example, UL or DL DCI (e.g. in case of HARQ-ACK) .
[0075] By implementing FIG. 2A and / or FIG. 2B, a solution for dropping PUSCH transmission or PUCCH transmission based on relative starting time for the case where PUSCH transmissions with repetitions are encoded with OCC is proposed. The solution can enhance the UL capacity. In other words, in case a first physical channel (PUCCH or PUSCH) transmission with repetitions overlaps with a second physical channel (PUSCH or PUCCH, respectively) transmission with repetitions, it is proposed that a UE transmits the first physical channel if the first physical channel transmission starts earlier than the second physical channel transmission, and the UE does not transmit the second physical channel, i.e., the general prioritization rule would be “first come first serve” in a time wise manner. Thus, an effective collision handling mechanism in case of PUSCH repetitions can be enabled, and thus performance degradation can be avoided.
[0076] Reference is made to FIG. 3, illustrates an example 300 of dropping PUSCH repetitions which starts later than PUCCH repetitions in accordance with some example embodiments of the present disclosure. As shown in FIG. 3, a UE is scheduled a PUSCH transmission with repetitions (306, 308, 310 and 312) and inter-slot OCC. the PUSCH transmission with repetitions 306, 308, 310 and 312 overlap with a PUCCH transmission with repetitions 302 and 304. Since the PUCCH repetition 302 start earlier than the PUSCH repetition 306, the UE may determine to drop (e.g., not transmit) the PUSCH repetitions 306, 308, 310 and 312.
[0077] Reference is made to FIG. 4, illustrates an example signaling diagram 400 of determining to transmit PUCCH with repetitions which starts earlier than PUSCH with repetitions in accordance with some example embodiments of the present disclosure. In FIG. 4, a UE 402 may correspond to the terminal device 102 in FIG. 1A, and a gNB 404 may correspond to the network device 104 in FIG. 1A.
[0078] At 406, the gNB 404 may send a UL DCI scheduling PUSCH transmission with repetitions and inter-slot OCC to the UE 402. At 408, the gNB 404 may send DL DCI scheduling PUCCH transmission with repetitions partly overlapping with the scheduled PUSCH transmission but with earlier starting time.
[0079] At 410, the UE 402 may determine that the PUCCH transmission starts earlier than the PUSCH transmission. At 412, the UE 402 may determine to transmit the PUCCH transmission and not transmit the PUSCH transmission. At 414, the UE 402 may transmit the PUCCH transmission.
[0080] Reference is made to FIG. 5, which illustrates an example flowchart of a method 500 for determining physical channel transmissions implemented at a terminal device in accordance with some example embodiments of the present disclosure. FIG. 5 will be described with reference to FIG. 1A.
[0081] At 502, the terminal device 102 determines first scheduling information for scheduling first physical channel transmission with repetitions. At 504, the terminal device 102 determines second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions.
[0082] At 506, the terminal device 102 determines one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions. At 508, the terminal device 102 transmits, to the network device 104, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0083] Reference is made to FIG. 6, which illustrates an example flowchart of a method 600 for determining physical channel transmissions implemented at a network device in accordance with some example embodiments of the present disclosure. FIG. 6 will be described with reference to FIG. 1A.
[0084] At 602, the network device 104 transmits, to the terminal device 102, first scheduling information for scheduling first physical channel transmission with repetitions. At 604, the network device 104 transmits, to the terminal device 102, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions.
[0085] At 606, the network device 104 receives, from the terminal device 102, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0086] It is to be understood that the methods 500 and / or 600 may comprise further steps corresponding to the example embodiments as provided by FIGS. 2A-4, and thus for the purpose of simplification, herein, the further steps will not be described again. By implementing the example embodiments as provided by the methods 500 and / or 600, an effective collision handling mechanism in case of PUSCH repetitions can be enabled, and thus performance degradation can be avoided.
[0087] In some example embodiments, an apparatus capable of performing the method 500 (for example, the terminal device 102 or the terminal device 106) may comprise means for performing the respective steps of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0088] In some example embodiments, the apparatus comprises: means for determining, at a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; means for determining, at the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; means for determining, at the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; and means for transmitting, at the terminal device to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0089] In some example embodiments, the apparatus may further comprise means for refraining from transmitting, to the network device, the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0090] In some example embodiments, the apparatus may further comprise means for transmitting, to the network device, a portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0091] In some example embodiments, the means for transmitting the portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions may comprise means for transmitting, to the network device, a portion of the PUSCH repetitions encoded with OCC which does not overlap with the PUCCH repetitions based on determining that the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions comprises the PUSCH repetitions encoded with OCC.
[0092] In some example embodiments, the apparatus may further comprise means for receiving, from the network device, one of the following: a configuration for configuring which physical channel transmission with repetitions is to be dropped under a condition that the first physical channel transmission with repetitions and the second physical channel transmission with repetitions are scheduled to start at a same time; or an indication indicative of which physical channel transmission with repetitions is to be dropped under the condition.
[0093] In some example embodiments, the apparatus may further comprise means for receiving the configuration via a RRC signaling. In some example embodiments, the apparatus may further comprise means for receiving the indication via at least one of the following: a MAC CE signaling.
[0094] In some example embodiments, the means for determining the first scheduling information and / or the means for determining the second scheduling information may comprise means for receiving, from the network device, the first scheduling information; means for receiving, from the network device, the second scheduling information; means for obtaining the first scheduling information which is preconfigured for the terminal device; or obtaining the second scheduling information which is preconfigured for the terminal device.
[0095] In some example embodiments, the first physical channel transmission with repetitions may comprise PUSCH repetitions, and the second physical channel transmission with repetitions may comprise PUCCH repetitions; the first physical channel transmission with repetitions may comprise PUSCH repetitions encoded with OCC, and the second physical channel transmission with repetitions may comprise PUCCH repetitions; the first physical channel transmission with repetitions may comprise PUCCH repetitions and the second physical channel transmission with repetitions may comprise PUSCH repetitions; or the first physical channel transmission with repetitions may comprise PUCCH repetitions and the second physical channel transmission with repetitions may comprise PUSCH repetitions encoded with OCC.
[0096] In some example embodiments, the apparatus may further comprise means for performing other steps in some embodiments of the method 500. In some example embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
[0097] In some example embodiments, an apparatus capable of performing the method 600 (for example, the network device 104) may comprise means for performing the respective steps of the method 600. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0098] In some example embodiments, the apparatus comprises: means for transmitting, at a network device to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions; means for transmitting, at the network device to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; and means for receiving, at the network device from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0099] In some example embodiments, the apparatus may further comprise means for receiving, from the terminal device, a portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.
[0100] In some example embodiments, the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions may comprise the PUSCH repetitions encoded with OCC, and the portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions may comprise a portion of the PUSCH repetitions encoded with OCC which does not overlap with the PUCCH repetitions.
[0101] In some example embodiments, the apparatus may further comprise means for transmitting, to the terminal device, one of the following: a configuration for configuring which physical channel transmission with repetitions is to be dropped under a condition that the first physical channel transmission with repetitions and the second physical channel transmission with repetitions are scheduled to start at a same time; or an indication indicative of which physical channel transmission with repetitions is to be dropped under the condition.
[0102] In some example embodiments, the apparatus may further comprise means for transmitting the configuration via a RRC signaling. In some example embodiments, the apparatus may further comprise means for transmitting the indication via at least one of the following: a MAC CE signaling.
[0103] In some example embodiments, the apparatus may further comprise means for performing other steps in some embodiments of the method 600. In some example embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
[0104] Reference is made to FIG. 7, which illustrates an example simplified block diagram of a device 700 that is suitable for implementing embodiments of the present disclosure. The device 700 may be provided to implement the communication device, for example, the terminal devices 102 and / or 104, or the network device 104 as shown in FIG. 1A. As shown, the device 700 includes one or more processors 710, one or more memories 720 may couple to the processor 710, and one or more communication modules 740 may couple to the processor 710.
[0105] The communication module 740 is for bidirectional communications. The communication module 740 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements, for example the communication interface may be wireless or wireline to other network elements, or software-based interface for communication.
[0106] The processor 710 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 700 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0107] The memory 720 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a read only memory (ROM) 724, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a random-access memory (RAM) 722 and other volatile memories that will not last in the power-down duration.
[0108] A computer program 730 includes computer executable instructions that are executed by the associated processor 710. The program 730 may be stored in the ROM 724. The processor 710 may perform any suitable actions and processing by loading the program 730 into the RAM 722.
[0109] The embodiments of the present disclosure may be implemented by means of the program so that the device 700 may perform any process of the disclosure as discussed with reference to FIGS. 2A to 6. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0110] In some embodiments, the program 730 may be tangibly contained in a computer readable medium which may be included in the device 700 (such as in the memory 720) or other storage devices that are accessible by the device 700. The device 700 may load the program 730 from the computer readable medium to the RAM 722 for execution. The computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. FIG. 8 shows an example of the computer readable medium 800 in form of CD or DVD. The computer readable medium has the program 730 stored thereon.
[0111] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0112] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the methods 500 and / or 600 as described above with reference to FIG. 5 and / or FIG. 6. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0113] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0114] In the context of the present disclosure, the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.
[0115] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random-access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs.ROM) .
[0116] Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0117] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A terminal device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to:determine first scheduling information for scheduling first physical channel transmission with repetitions;determine second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions;determine one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; andtransmit, to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.2.The terminal device of claim 1, wherein the terminal device is caused to:refrain from transmitting, to the network device, the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.3.The terminal device of claim 1, wherein the terminal device is caused to:transmit, to the network device, a portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.4.The terminal device of claim 3, wherein at least one of the following:the first physical channel transmission with repetitions comprises physical uplink shared channel (PUSCH) repetitions, and the second physical channel transmission with repetitions comprises physical uplink control channel (PUCCH) repetitions;the first physical channel transmission with repetitions comprises PUSCH repetitions encoded with orthogonal cover code (OCC) , and the second physical channel transmission with repetitions comprises PUCCH repetitions;the first physical channel transmission with repetitions comprises PUCCH repetitions and the second physical channel transmission with repetitions comprises PUSCH repetitions; orthe first physical channel transmission with repetitions comprises PUCCH repetitions and the second physical channel transmission with repetitions comprises PUSCH repetitions encoded with OCC.5.The terminal device of claim 4, wherein the terminal device is caused to transmit the portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions by:based on determining that the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions comprises the PUSCH repetitions encoded with OCC, transmit, to the network device, a portion of the PUSCH repetitions encoded with OCC which does not overlap with the PUCCH repetitions.6.The terminal device of any of claims 1-5, wherein the terminal device is caused to receive, from the network device, one of the following:a configuration for configuring which physical channel transmission with repetitions is to be dropped under a condition that the first physical channel transmission with repetitions and the second physical channel transmission with repetitions are scheduled to start at a same time; oran indication of which physical channel transmission with repetitions is to be dropped under the condition.7.The terminal device of claim 6, wherein the terminal device is caused to receive the configuration via a radio resource control (RRC) signaling.8.The terminal device of claim 6 or 7, wherein the terminal device is caused to receive the indication via at least one of the following:a media access control (MAC) control element (CE) signaling; ora downlink control information (DCI) signaling.9.The terminal device of any of claims 1-8, wherein the terminal device is caused to determine at least one of the first scheduling information or the second scheduling information by at least one of the following:receiving, from the network device, the first scheduling information;receiving, from the network device, the second scheduling information;obtaining the first scheduling information which is preconfigured for the terminal device; orobtaining the second scheduling information which is preconfigured for the terminal device.10.A network device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to:transmit, to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions;transmit, to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; andreceive, from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.11.The network device of claim 10, wherein the network device is caused to:receive, from the terminal device, a portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.12.The network device of claim 11, wherein at least one of the following:the first physical channel transmission with repetitions comprises physical uplink shared channel (PUSCH) repetitions, and the second physical channel transmission with repetitions comprises physical uplink control channel (PUCCH) repetitions;the first physical channel transmission with repetitions comprises PUSCH repetitions encoded with orthogonal cover code (OCC) , and the second physical channel transmission with repetitions comprises PUCCH repetitions;the first physical channel transmission with repetitions comprises PUCCH repetitions and the second physical channel transmission with repetitions comprises PUSCH repetitions; orthe first physical channel transmission with repetitions comprises PUCCH repetitions and the second physical channel transmission with repetitions comprises PUSCH repetitions encoded with OCC.13.The network device of claim 12, wherein the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions comprises the PUSCH repetitions encoded with OCC, and the portion of the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions comprises a portion of the PUSCH repetitions encoded with OCC which does not overlap with the PUCCH repetitions.14.The network device of any of claims 10-13, wherein the network device is caused to transmit, to the terminal device, one of the following:a configuration for configuring which physical channel transmission with repetitions is to be dropped under a condition that the first physical channel transmission with repetitions and the second physical channel transmission with repetitions are scheduled to start at a same time; oran indication indicative of which physical channel transmission with repetitions is to be dropped under the condition.15.The network device of claim 14, wherein the network device is caused to transmit the configuration via a radio resource control (RRC) signaling.16.The network device of claim 14 or 15, wherein the network device is caused to transmit the indication via at least one of the following:a media access control (MAC) control element (CE) signaling; ora downlink control information (DCI) signaling.17.A method comprising:determining, at a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions;determining, at the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions;determining, at the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; andtransmitting, at the terminal device to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.18.A method comprising:transmitting, at a network device to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions;transmitting, at the network device to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; andreceiving, at the network device from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.19.An apparatus comprising:means for determining, at a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions;means for determining, at the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions;means for determining, at the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions; andmeans for transmitting, at the terminal device to a network device, the one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.20.An apparatus comprising:means for transmitting, at a network device to a terminal device, first scheduling information for scheduling first physical channel transmission with repetitions;means for transmitting, at the network device to the terminal device, second scheduling information for scheduling second physical channel transmission with repetitions at least partly overlapping with the first physical channel transmission with repetitions; andmeans for receiving, at the network device from the terminal device, one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions which is scheduled to start earlier than the other one of the first physical channel transmission with repetitions or the second physical channel transmission with repetitions.21.A computer readable medium comprising program instructions stored thereon for performing a method of claim 17 or 18.