Indication for simultaneous uplink transmissions

Abstract

Example embodiments of the present disclosure relate to indications for simultaneous uplink transmissions. In one method, a first device receives, from a second device, a plurality of control information indications for scheduling simultaneous uplink transmissions to the second device. The first device determines combined control information for simultaneous uplink transmission via the plurality of antenna panels by combining the plurality of control information indications. The first device performs simultaneous uplink transmissions to the second device via the plurality of antenna panels based on the combined control information. In this manner, simultaneous uplink transmissions via multiple antenna panels may be achieved.

Description

Indicator for simultaneous uplink transmission Technical Field

[0001] Various exemplary embodiments of this disclosure generally relate to the field of telecommunications, and particularly to methods, apparatus, and computer-readable storage media for indicating simultaneous uplink transmission. Background Technology

[0002] In a communication system, the Physical Uplink Shared Channel (PUSCH) is the physical uplink channel carrying user data. The time-frequency structure of the reference signal depends on the waveform type configured for the PUSCH. When transform precoding is disabled, the configured waveform is Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM). When transform precoding is enabled, the configured waveform is Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-s-OFDM). The PUSCH supports two transmission schemes: codebook-based and non-codebook-based, and these schemes support explicit transmission (TX) beam indication. Simultaneous Multi-Panel Transmission (STxMP) has also been proposed. Therefore, indication for STxMP needs to be supported. Summary of the Invention

[0003] In a first aspect of this disclosure, a first apparatus is provided. The first apparatus includes at least one processor and at least one memory storing instructions, which, when executed by the at least one processor, cause the first apparatus to: receive from a second apparatus a plurality of control information indications for scheduling simultaneous uplink transmissions to the second apparatus; determine combined control information for simultaneous uplink transmissions via a plurality of antenna panels by combining the plurality of control information indications; and perform simultaneous uplink transmissions to the second apparatus via the plurality of antenna panels based on the combined control information.

[0004] In a second aspect of this disclosure, a second apparatus is provided. The second apparatus includes at least one processor and at least one memory storing instructions, which, when executed by the at least one processor, cause the second apparatus to: send to a first apparatus a plurality of control information indications for scheduling simultaneous uplink transmissions to the second apparatus; determine combined control information for simultaneous uplink transmissions via a plurality of antenna panels of the first apparatus by combining the plurality of control information indications; and receive simultaneous uplink transmissions from the plurality of antenna panels of the first apparatus based on the combined control information.

[0005] In a third aspect of this disclosure, a method is provided. The method includes: receiving from a second device multiple control information indications for scheduling simultaneous uplink transmission to the second device; determining combined control information for simultaneous uplink transmission via multiple antenna panels by combining the multiple control information indications; and performing simultaneous uplink transmission to the second device via the multiple antenna panels based on the combined control information.

[0006] In a fourth aspect of this disclosure, a method is provided. The method includes: sending to a first device multiple control information indications for scheduling simultaneous uplink transmission to a second device; determining combined control information for simultaneous uplink transmission via multiple antenna panels of the first device by combining the multiple control information indications; and receiving the simultaneous uplink transmission from the multiple antenna panels of the first device based on the combined control information.

[0007] In a fifth aspect of this disclosure, a first apparatus is provided. The first apparatus includes: means for receiving from a second apparatus a plurality of control information indications for scheduling simultaneous uplink transmission to the second apparatus; means for determining combined control information for simultaneous uplink transmission via a plurality of antenna panels by combining the plurality of control information indications; and means for performing simultaneous uplink transmission to the second apparatus via the plurality of antenna panels based on the combined control information.

[0008] In a sixth aspect of this disclosure, a second apparatus is provided. The second apparatus includes: means for transmitting to a first apparatus a plurality of control information indications for scheduling simultaneous uplink transmission to the second apparatus; means for determining combined control information for simultaneous uplink transmission via a plurality of antenna panels of the first apparatus by combining the plurality of control information indications; and means for receiving simultaneous uplink transmission from the plurality of antenna panels of the first apparatus based on the combined control information.

[0009] In a seventh aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon for causing a device to perform at least the method according to the third aspect.

[0010] In an eighth aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon for causing a device to perform at least the method according to the fourth aspect.

[0011] It should be understood that the summary portion is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0012] Some exemplary embodiments will now be described with reference to the accompanying drawings, in which:

[0013] Figure 1 illustrates an example communication environment in which example embodiments of the present disclosure may be implemented;

[0014] Figure 2 illustrates an example of multiple transmit receiver point (TRP) PUSCH repeat and antenna panel selection;

[0015] Figure 3 illustrates an example of simultaneous four-panel PUSCH transmission to four TRPs;

[0016] Figure 4 illustrates a signaling diagram of simultaneous uplink transmission according to some exemplary embodiments of the present disclosure;

[0017] Figure 5 illustrates an example of combined control information triggered by uplink transmission of four antenna panels simultaneously.

[0018] Figure 6 illustrates another signaling diagram of simultaneous uplink transmission according to some exemplary embodiments of the present disclosure;

[0019] Figure 7 illustrates a flowchart of a method implemented at a first device according to some exemplary embodiments of the present disclosure;

[0020] Figure 8 illustrates a flowchart of a method implemented at a second device according to some exemplary embodiments of the present disclosure;

[0021] Figure 9 illustrates a simplified block diagram of an apparatus suitable for implementing an example embodiment of the present disclosure; and

[0022] Figure 10 illustrates a block diagram of an example computer-readable medium according to some exemplary embodiments of the present disclosure.

[0023] Throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. Detailed Implementation

[0024] The principles of this disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not constitute any limitation on the scope of this disclosure. The embodiments described herein can be implemented in various other ways besides those described below.

[0025] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0026] In this disclosure, references to "an embodiment," "embodiment," and "example embodiment," etc., indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment must include that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a particular feature, structure, or characteristic is described in connection with an embodiment, those skilled in the art will understand that, whether explicitly described or not, it is within the scope of their knowledge to implement such a feature, structure, or characteristic in combination with other embodiments.

[0027] It should be understood that although various elements may be described herein using terms such as "first," "second," etc., such as noun(s), these elements should not be limited by these terms. These terms are used only to distinguish one element from another and do not restrict the order of the nouns. For example, without departing from the scope of the exemplary embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0028] As used herein, “at least one of the following: ” and “<at least one of the list of two or more elements>” and similar wording (where the list of two or more elements is connected by “and” or “or”) means at least any one of these elements, or at least any two or more of these elements, or at least all of these elements.

[0029] As used herein, unless explicitly stated otherwise, “responding to A” does not mean that the step is performed immediately after “A” occurs, but may include one or more intermediate steps.

[0030] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. The singular forms “a,” “an,” and “the” used herein also include the plural forms unless the context clearly indicates otherwise. Further understanding is that the terms “comprising,” “including,” “having,” “containing,” and / or “containing,” when used herein, specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0031] As used in this application, the term "circuit system" may refer to one or more or all of the following: (a) a purely hardware circuit implementation (such as an implementation using only analog and / or digital circuit systems), and (b) a combination of hardware circuits and software, such as (if applicable): (i) a combination of (multiple) analog and / or digital hardware circuits with software / firmware, and (ii) any portion of (multiple) hardware processors (including (multiple) digital signal processors), software, and (multiple) memories having software, which work together to enable a device (such as a mobile phone or a server) to perform various functions), and (c) (multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or portions thereof, which require software (e.g., firmware) to operate, but the software may be absent when operation is not required.

[0032] The definition of "circuit system" applies to all uses of the term in this application, including in any claim. As another example, as used in this application, the term "circuit system" also covers only hardware circuitry or a processor (or multiple processors) or portions of hardware circuitry or a processor and its accompanying software and / or firmware implementation. For example, if applicable to a particular claim element, the term "circuit system" also covers baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices, or other computing or network devices.

[0033] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiplexing (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including but not limited to first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G), sixth-generation (6G) communication protocols and / or any other protocols currently known or to be developed in the future. Embodiments of this disclosure can be applied to various communication systems. Given the rapid development of communications, there will naturally be communication technologies and systems that can be used to embody future types of communication technologies and systems. This disclosure should not be construed as limiting its scope to the systems described above.

[0034] As used herein, the term "network device" refers to a node in a communication network through which terminal devices access the network and receive services. A network device can refer to a base station (BS) or access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NR NB (also known as a gNB), a Remote Radio Unit (RRU), a Radio Header (RH), a Remote Radio Header (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low-power node (such as a femtosecond or picosecond), a non-terrestrial network (NTN) or non-terrestrial network device (such as satellite network equipment, low Earth orbit (LEO) satellites, and geostationary orbit (GEO) satellites), an aircraft network device, etc., depending on the terminology and technology applied. In some example embodiments, the Radio Access Network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at the IAB donor node. An IAB node includes a mobile terminal (IAB-MT) portion that behaves as a UE to its parent node, and the DU portion of the IAB node behaves as a base station to the next-hop IAB node.

[0035] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not a limitation, a terminal device may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices can include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEE), laptop mounted devices (LME), USB dongles, smart devices, wireless customer premises equipment (CPE), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) portion of an IAB node (e.g., a relay node). In the following description, the terms "terminal device," "communication device," "terminal," "user equipment," and "UE" are used interchangeably.

[0036] As used herein, the terms “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” can refer to any resource used to perform communication, such as communication between a terminal device and a network device, including time-domain resources, frequency-domain resources, spatial-domain resources, code-domain resources, or any other combination of time-domain resources, frequency-domain resources, spatial-domain resources, and / or code-domain resources that enables communication. In the following, unless explicitly stated otherwise, resources in the frequency and time domains will be used as examples of transmission resources to describe some exemplary embodiments of this disclosure. It should be noted that the exemplary embodiments of this disclosure are equally applicable to other resources in other domains.

[0037] As used herein, the term "Transmitter Receiver Point (TRP)" can refer to an antenna port or antenna array (with one or more antenna elements) available to a network device located in a specific geographic location. For example, a network device may be coupled with multiple TRPs in different geographic locations to achieve better coverage. Alternatively or additionally, multiple TRPs may be combined into a network device, or in other words, a network device may include multiple TRPs. The term "TRP" may also refer to a cell, such as a macro cell, small cell, pico cell, femtocell, remote radio headend, relay node, etc. It should be understood that the term "TRP" can refer to a logical concept that can be physically implemented in various ways. For example, a TRP can refer to or correspond to a Physical Cell Identifier (PCI) or a Control Resource Set (CORESET) Pool Index (i.e., CORESETPoolIndex). Example Environment

[0038] Figure 1 illustrates an example communication environment 100 in which exemplary embodiments of the present disclosure may be implemented. In the communication environment 100, a first device 110 and a second device 120 may communicate with each other. For example, the first device 110 is served by the second device 120.

[0039] As shown in the figure, the second device 120 may be coupled to or equipped with multiple TRPs, including TRPs 125-1, 125-2, 125-3, and 125-4, which may be collectively referred to as "TRP 125" or individually as "TRP 125". Alternatively, in some example embodiments, two second devices 120 may be coupled to multiple TRPs 125.

[0040] In some example embodiments, one or more TRPs 125 are interconnected via ideal backhaul and have a centralized scheduler, wherein one of the TRPs 125 acts as a serving TRP, which triggers PUSCH transmissions to one or more TRPs. Alternatively, in some example embodiments, one or more TRPs 125 are interconnected via non-ideal backhaul and have a distributed scheduler. Each TRP 125 operates independently, such that each TRP 125 can trigger its own corresponding PUSCH transmission.

[0041] The first device 110 may be equipped with a plurality of antenna panels 115-1, 115-2, 115-3 and 115-4 for communication with the second device 120. Hereinafter, the plurality of antenna panels 115-1, 115-2, 115-3 and 115-4 may be collectively referred to as “antenna panel 115” or individually referred to as “antenna panel 115”.

[0042] It should be understood that the number of the first device, the second device, the antenna panel, and the TRP is for illustrative purposes only and does not imply any limitation. Environment 100 may include any suitable number of the first device, the second device, the antenna panel, and the TRP suitable for implementing embodiments of this aspect of the present disclosure.

[0043] In the following description, for illustrative purposes, some exemplary embodiments are depicted in which the first device 110 operates as a terminal device and the second device 120 operates as a network device. However, in some exemplary embodiments, the operations described in connection with a terminal device may be implemented at a network device or other devices, and the operations described in connection with a network device may be implemented at a terminal device or other devices.

[0044] In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is referred to as a downlink (DL), and the link from the first device 110 to the second device 120 is referred to as an uplink (UL). In the DL, the second device 120 is a transmitting (TX) device (or transmitter), and the first device 110 is a receiving (RX) device (or receiver). In the UL, the first device 110 is a TX device (or transmitter), and the second device 120 is an RX device (or receiver).

[0045] Communication in communication environment 100 can be implemented according to any suitable communication protocol(s), including but not limited to cellular communication protocols such as first-generation (1G), second-generation (2G), third-generation (3G), fourth-generation (4G), fifth-generation (5G), and sixth-generation (6G), wireless local area network communication protocols such as IEEE 802.11, and / or any other protocols currently known or to be developed in the future. Furthermore, communication can utilize any suitable wireless communication technology, including but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM), and / or any other technologies currently known or to be developed in the future.

[0046] As mentioned above, PUSCH is the physical UL channel carrying user data. Taking a UE as an example, in Rel-15, the UE is enabled to be configured with codebook-based or non-codebook-based PUSCH transmissions with two UL sounding reference signal (SRS) resource sets. In other words, based on this configuration, the UE should use a single TX antenna panel to transmit PUSCH up to rank 4 to a single TRP. In the following text, this mode may be referred to as Rel-15 UL TX mode. The goal of single-panel precoded PUSCH with a single TRP in Rel-15 is to improve the reliability and / or throughput of STxMP PUSCH transmissions with a single TRP.

[0047] In Rel-17, the reliability of uplink transmission in the context of multi-TRP scenarios is enhanced, and a single downlink control information indicator (S-DCI) is used for time-division multiplexing (TDM) multiple transport receiver point (M-TRP) PUSCH repetition and antenna panel selection. Figure 2 shows an example of the S-DCI used for TDM M-TRP PUSCH repetition and antenna panel selection. UE 210 with antenna panel 1 and antenna panel 2 is configured with two different UL SRS resource sets, which have a followUnifiedTCIstateSRS information element to follow the states of two different DL Transport Configuration Indicators (TCI) associated as spatial sources, or a combined DL and UL / UL TCI state.

[0048] Based on the capability set index report from UE 210, the network can know the specific transmission capabilities of the UE antenna panel (including information about the number of UL SRS antenna ports) for UL-oriented transmissions based on the UL SRS codebook in a specific spatial direction. Based on this information, the network can trigger transmissions using two different UL SRS resource sets using the codebook to obtain the TRP-specific transmission precoder matrix indicator (TPMI) hypothesis specifically for PUSCH transmissions (this means determining the precoder index and rank selection).

[0049] Based on the acquired TRP-specific TPMI and SRS resource set indicator information, the network can trigger non-simultaneous TRP-specific PUSCH transmissions via DCI. The DCI can include code points for the SRS resource set indicator, where 2 bits are reserved if both SRS resource sets are configured to use a codebook or not, thus reserving four values; otherwise, 0 bits are reserved. The first two of the four possible values ​​of the DCI code point can be used to indicate which of the two SRIs (first SRI or second SRI) is used to enable dynamic switching between single TRP PUSCH transmissions in time-division multiplexing (TDM) mode for TRP1 or TRP2, and the remaining two values ​​can be used to enable multiple TRP PUSCH transmissions between TRP1 and TRP2 via repeating in TDM mode, using a cyclic or sequential mapping configured by RRC to map the two SRIs to PUSCH repeating.

[0050] Furthermore, for codebook-based transmissions, the DCI may include two separate code point fields for SRI and two fields for precoding information and layer number. It is noteworthy that the first field for precoding information and layer number indicates the transmission layer number, while the second field does not. For non-codebook-based transmissions, the DCI may include two code point fields for SRI, where the first code point field indicates the transmission layer, while the second code point field does not. Based on the received S-DCI, the UE can then transmit PUSCH transmissions using multiple antenna panels (one panel at a time). In the following text, this mode may be referred to as Rel-17 UL TX mode.

[0051] In Rel-17, the UE is enabled to be configured with either codebook-based or non-codebook-based PUSCH transmissions. In other words, based on this configuration, the UE can assume that upon receiving a DCI with or without uplink grant, the SRS resource indicator and precoding information are associated with either codebook-based or non-codebook-based PUSCH transmissions. The goal of Rel-17 TDM-based PUSCH with repeating M-TRP is to improve the reliability of PUSCH transmissions with M-TRP.

[0052] In Rel-18, it is important to identify and specify the necessary enhancements for uplink MIMO. To meet the evolving requirements of NR deployment, necessary enhancements to downlink MIMO are still needed to facilitate the use of large antenna arrays, not only for frequency range 1 (FR1) but also for frequency range 2 (FR2).

[0053] UL's higher peak data rates can play a significant role in short-range applications such as home entertainment, video surveillance / monitoring in industry / medical / security, IAB, and other applications where device power / size / cost are less stringent than in traditional handheld devices. For both FR1 and FR2, UL transmission rates greater than 4TX help bridge the gap between DL and UL spectral efficiency. Therefore, there is a strong need to develop technical solutions for Rel-18 or higher to overcome this issue.

[0054] Compared to the Rel-17 TDM repetition scheme based on S-DCI, Rel-18 can specify support for simultaneous uplink multi-panel PUSCH schemes based on S-DCI and multi(M)-DCI, which have spatial multiplexing (SDM) or single-frequency network (SFN) to improve throughput and reliability and reduce latency.

[0055] In the SDM-based scheme, different Layer / DMRS ports of a single PUSCH transmission can be precoded separately and transmitted simultaneously from different UE panels. In the SFN-based scheme, all identical Layer / DMRS ports of a single PUSCH transmission can be transmitted simultaneously from two different UE panels.

[0056] Typically, Rel-17 specifications (e.g., TS 38.214, 38.212) do not support simultaneous UL PUSCH transmissions based on S-DCI or M-DCI using multiple antenna panels. For S-DCI, it can be assumed that the network has a centralized scheduler with ideal backhaul across multiple TRPs, while for M-DCI, it is assumed that there is a distributed scheduler with non-ideal backhaul.

[0057] In Rel-18, the UE can be configured to use either an SFN-based scheme or an SDM-based scheme. SFN and SDM can be described as follows, where the applied precoding can be codebook-based or non-codebook-based. In the SDM-based scheme, different PUSCH layers and DMRS antenna ports of a codeword can be precoded separately and transmitted simultaneously from different UE antenna panels. In the SFN-based scheme, the same PUSCH layer and DMRS antenna port can be transmitted simultaneously via two different UE antenna panels associated with different TCI states using two different precoders.

[0058] The goal of Rel-18 SFN-based STxMP PUSCH with two TRPs is to improve the reliability and reduce latency of STxMP PUSCH transmission with M-TRP. The goal of Rel-18 SDM-based STxMP PUSCH with two TRPs is to improve the throughput of STxMP PUSCH transmission with M-TRP.

[0059] In both SDM-based schemes with codebook-based precoding and SFN-based schemes, the UE provides a separate precoder matrix for each transmit panel via two TPMI entries in the DCI. Rel-18 supports the STxMPPUSCH SDM scheme based on S-DCI, supporting layer combinations {1+1, 1+2, 2+1, and 2+2} for single codeword (CW) cases. This applies to SDM with a single codeword.

[0060] For future versions (e.g., Rel-19) or 6G communication systems, improved UL reliability and throughput are expected. Therefore, one potential objective of future versions of MIMO is to discuss and define how to provide support for simultaneous multi-panel UL transmission for multiple TRPs with more than two panels (e.g., four (STx4P) or even more panels). For example, considering multi-TRP operation based on S-DCI and M-DCI, it could be for Customer Premises Equipment (CPE) / Fixed Wireless Access (FWA) / Vehicles / Industrial Equipment (where applicable), where the total number of layers across all panels can be up to eight, and the total number of codewords across all panels can be up to two.

[0061] As mentioned above, it is anticipated to support different simultaneous multi-panel PUSCH transmission modes, such as SDM and SFN-based schemes with up to four TRPs and more than two antenna panels (e.g., four).

[0062] Figure 3 illustrates an example of simultaneous multi-panel PUSCH transmission with four TRPs and four UE TX antenna panels. As shown, with four TRPs and four antenna panels 311, 312, 313, and 314, UE 310 can be scheduled via S-DCI to simultaneously transmit precoded PUSCH transmissions with rank 8 (two codewords). UE 310 can be configured with multiple UL SRS resource sets (e.g., two or more) following TCI state flags. In other words, when PUSCH transmission is triggered via S-DCI based on the UL SRS resource set configuration and assuming the indicated TCI code point (via DL DCI format), UE 310 can understand which TCI states will be applied to the simultaneous PUSCH transmissions of each of antenna panels 311, 312, 313, and 314. Furthermore, assuming the serving TRP has triggered / configured the UE to transmit four different UL SRS resource sets to four different TRPs using the corresponding resources via a "codebook" based on the uplink channel state information (CSI) associated with the UL SRS transmission. The uplink CSI associated with the ULSRS transmission can be implemented before the PDCCH transmission triggers the multi-panel PUSCH transmission and the corresponding precoder indication. The network can determine its precoding and layer information for each TRP-specific PUSCH transmission.

[0063] Because Rel-18 only supports simultaneous PUSCH transmissions via two different antenna panels with two indicators of TCI status, a problem arises in the network: how does the network indicate precoding and layer information for UEs capable of simultaneous PUSCH transmissions via more than two (e.g., four) antenna panels? It's worth noting that the Rel-18 DCI format (e.g., 0_1 or 0_2) only supports two different code point fields associated with precoding and layer information. In other words, Rel-18 does not support simultaneous uplink multi-panel PUSCH transmissions using more than two TX antenna panels.

[0064] Based on the above and previous discussions, ambiguity remains regarding how to indicate and correctly interpret the indicated precoder and layer information for simultaneous multi-panel PUSCH transmission using more than two antenna panels, both for the network and the UE. Therefore, these issues need to be addressed, requiring corresponding technical solutions. The working principle and examples of communication signaling are also discussed.

[0065] According to some example embodiments of this disclosure, a technical solution for indicating simultaneous uplink transmission is provided. In one technical solution, a first device (such as a terminal device) receives multiple control information indications from a second device (such as a network device) for scheduling simultaneous uplink transmission to the second device. The first device determines combined control information for simultaneous uplink transmission via multiple antenna panels by combining the multiple control information indications. Then, the first device performs simultaneous uplink transmission to the second device via the multiple antenna panels based on the combined control information.

[0066] In this way, the first device can perform simultaneous uplink transmissions via multiple antenna panels based on combined control information. Simultaneous transmission via multiple panels is possible. In some example embodiments, the second device determines the combined control information in a similar manner. Therefore, both the first and second devices know how to indicate and correctly interpret the indicated precoder and layer information for simultaneous multi-panel uplink transmission.

[0067] Example embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. FIG4 illustrates a signaling diagram 400 of simultaneous uplink transmission according to some example embodiments of the present disclosure. Signaling diagram 400 relates to the first device 110 and the second device 120 in FIG1. ​​For illustrative purposes, signaling diagram 400 will be described with reference to FIG1.

[0068] In operation, the second device 120 sends (410) multiple control information indications to the first device 110 for scheduling simultaneous uplink transmissions. For example, the second device 120 may send the control information indications to the first device 110 via the serving TRP 125. The first device 110 receives the multiple control information indications. As used herein, the term "control information indication for scheduling simultaneous uplink transmissions" may also be referred to as "scheduling control information indication" or "triggering control information indication".

[0069] Control information indications can be downlink control information (DCI) indications, which may also be referred to as "DCI" or "triggered DCI". For example, a control information indication can be a single DCI (s-DCI) indication or an s-DCI. DCIs can use traditional DCI formats, such as DCI formats 0_1 or 0_2, or newer DCI formats. Simultaneous uplink transmissions can be sent simultaneously via multiple antenna panels. That is, simultaneous uplink transmissions can be simultaneous multi-panel (STxMP) transmissions. An example of simultaneous multi-panel transmissions is simultaneous multi-panel physical uplink shared channel (PUSCH) transmission.

[0070] In some example embodiments, control information indications may be transmitted (410) via multiple control channels, such as the Physical Downlink Control Channel (PDCCH) or any other suitable channel. In one example, the multiple control channels share a Search Space Set (SSS) and a Control Resource Set (CORESET). For example, the first device 110 may receive (410) two or more PDCCHs sharing the same Search Space Identifier (ID) and CORESET ID. The received two or more PDCCHs include an uplink DCI for scheduling simultaneous multi-panel Physical Uplink Shared Channel (PUSCH) transmissions.

[0071] In some example embodiments, the search space sets of multiple control channels are different. Alternatively or additionally, in a CORESET, the multiple control channels are different. For example, multiple DCIs may be transmitted on different search space set IDs and / or different CORESET PDCCH candidates (410). In this case, the search space sets may be associated via higher-level configuration.

[0072] The first device 110 determines (430) combined control information for simultaneous uplink transmission via multiple antenna panels by combining multiple control information indications. For example, the first device 110 may bundle multiple control information indications into combined control information. As used herein, the term "combined control information" may also be referred to as "bundled control information". For those embodiments where the control information indications are DCI indications, the combined control information may be referred to as "combined DCI" or "bundled DCI". Similarly, the second device 120 determines (440) combined control information in a similar manner.

[0073] The first device 110 performs (450) simultaneous uplink transmission to the second device 120 via multiple antenna panels based on combined control information. The second device 120 receives (460) simultaneous uplink transmission from the multiple antenna panels of the first device 110 based on the combined control information. Other embodiments for determining the combined control information and performing simultaneous uplink transmission will be described below.

[0074] In some example embodiments, the first device 110 may determine (430) the combination of control information based on configuration information from the second device 120. For example, the second device 120 may send configuration information to the first device 110, which indicates at least the combination of multiple control information indications. In some example embodiments, the configuration information may also indicate the number of multiple control information indications.

[0075] In some example embodiments, configuration information may be sent to the first device 110 in response to capability information from the first device 110. For example, the first device 110 may send capability information to the second device 120 for combining different control information indications for simultaneous uplink transmission. The second device 120 may receive the capability information.

[0076] In one example, capability information may indicate the ability to support a combination of different control information indications. For example, the first device 110 may report capabilities related to supporting the use of combined DCIs (e.g., two or more DCIs) for simultaneous multi-panel PUSCH transmissions (e.g., more than two transmissions) using multiple antenna panels (e.g., more than two antenna panels). Simultaneous multi-panel PUSCH transmissions may be based on SDM or SFN.

[0077] In another example, the capability information may indicate the number of different control information indications for combination supported by the first device 110. For example, the first device 110 may select a value from possible values, and the first device 110 may use up to that value of DCI for combination. Possible values ​​may be, for example, {2, 4, 6} or any other integer.

[0078] In some example embodiments, the ability to use bundled DCI information elements can be associated with the simultaneous multi-panel (more than two) PUSCH transmission capability of the SDM and / or SFN. For example, the ability to transmit PUSCH simultaneously can mean the ability to combine multiple DCIs. Additionally or alternatively, as part of a capability report, the first device 110 reports the number of DCIs supported for simultaneous multi-panel transmission. For example, the reported number of supported DCIs (greater than one) can indicate the ability to combine multiple DCIs.

[0079] In another example, capability information may indicate the time offset between a first time point for receiving multiple control information indications and a second time point for performing simultaneous uplink transmissions. That is, the first device 110 may report a supported time offset value, where the offset defines the time interval between the last received DCI (among multiple DCIs associated with bundled DCI indications) and the scheduled PUSCH transmission. This value may differ from the regular PUSCH scheduling offset due to the varying processing requirements of the first device 110.

[0080] Based on the simultaneous multi-panel capability of the first device 110, network indication and the triggering of corresponding PUSCH transmissions can be easily determined, or expanded according to the number of individual DCI transmissions.

[0081] In response to receiving capability information, the second device 120 may send configuration information to the first device 110 that indicates at least the combination of multiple control information indications. For example, the configuration information may include the higher-level parameter `bundled-DCI-ULMultiTX` to indicate the combination of multiple control information indications. The configuration information may also indicate the number of multiple control information indications to be combined. For example, the configuration information may include the higher-level parameter `numb-Of-RxBundled-DCIs` to indicate the number of multiple control information indications to be combined.

[0082] For example, based on a capability report, the first device 110 can be configured with higher-layer parameters bundled-DCI-ULMultiTX and number-of-RxBundled-DCIs. Assuming number-of-RxBundled-DCIs is N (N is an integer greater than or equal to 2), the first device 110 can receive N uplink DCIs (i.e., multiple uplink DCIs) (e.g., DCI format 0_1 ​​or 0_2) trigger commands via the PDCCH to simultaneously perform multi-panel PUSCH transmissions based on SDM or SFN. For example, the configuration information can be a PUSCH-Config information element (IE). The PUSCH-Config can have information elements DCI-bundling-ULMultiTX and number-of-RxBundled-DCIs. In this way, the first device 110 can know how much control information indication will be combined for simultaneous uplink transmissions.

[0083] In some example embodiments, possible implementations of PUSCH-config in standards or specifications are defined in Table 1. IEPUSCH-Config can be used to configure UE-specific PUSCH parameters applicable to a specific bandwidth portion (BWP). Table 1

[0084] In some example embodiments, multiple control information indications each include multiple values ​​for a configuration parameter. The multiple control information indications may also each include multiple values ​​for one or more configuration parameters. The value of the configuration parameter may be indicated by a field or code point field in the control information indication. For example, each control information indication may include a code point field for the corresponding configuration parameter. The value of the corresponding parameter is indicated by the bits(s) of the field(s).

[0085] Examples of configuration parameters may include, but are not limited to, resource set indicators, such as SRS resource set indicator, SRS resource indicator (SRI), second SRI (SRI-2), precoding information and number of layers, second precoding information, antenna port information (API) or antenna port, phase tracking reference signal and demodulation reference signal (PTRS-DMRS) association, second PTRS-DMRS association, etc. For example, precoding information and number of layers may be included in PRI or TPMI, and second precoding information may be included in PRI-2 or TPMI-2.

[0086] In some example embodiments, the configuration parameters of each of the multiple control information indicators may include all relevant configuration parameters, such as PRI, PRI-1, SRI, SRI-2, SRS set indicator, PTRS-DMRS, etc. listed above.

[0087] Alternatively, in some example embodiments, some of the multiple control information indications may include only a portion of the configuration parameters described above. That is, during the receipt of multiple DCI trigger commands, only a portion of the configuration parameters is combined. For example, assuming there are two control information indications, the configuration parameters of the first control information indication (referred to as the first DCI) may include PRI, PRI-2, SRI, SRI-2, SRS set indicator, and PTRS-DMRS, and the configuration parameters of the second control information indication (referred to as the second DCI) may include PRI, SRI, SRS set indicator, and PTRS-DMRS. That is, PRI-2 and SRI-2 may not be configured in the second control information indication. In this case, the combined DCI code point field value can be a bundled SRI (SRI-bund)=[1st-DCI-SRI, 2nd-DCI-SRI], a bundled SRI-2 (SRI-2-bund)=[1st-DCI-SRI-2], a bundled PRI (PRI-bund)=[1st-DCI-PRI, 2nd-DCI-PRI], a bundled PRI-2 (PRI-2-bund)=[1st-DCI-PRI-2], a bundled SRS resource set indicator (SRS-resource-set-Ind-bund)=[1st-DCI-SRS-resource-set-Ind, 2nd-DCI-SRS-resource-set-Ind], or a PTRS-DMRS (PTRS-DMRS-bund)=[1st-DCI-PTRS-DMRS, 2nd-DCI-PTRS-DMRS].

[0088] It should be understood that these examples of configuration parameters are for illustrative purposes only and do not represent any limitation. Configuration parameters may include any suitable communication parameters, any combination of the example parameters above, or a combination of the above parameters and any other parameters. The scope of this disclosure is not limited in this respect.

[0089] In some example embodiments, in order to determine (430) combined control information, the first device 110 may combine multiple values ​​of configuration parameters for multiple control information indications. For example, the first device 110 may sort the multiple control information indications. The first device 110 may sort the multiple values ​​for configuration parameters based on the sorted multiple control information indications. Therefore, the first device 110 may determine (430) combined control information based on the sorted multiple values ​​for configuration parameters.

[0090] In some example embodiments, the combined control information may include fields and associated values ​​for configuration parameters, such as code point fields. The first device 110 may assign a plurality of sorted indication values ​​to bits of the fields in ascending or descending order. In embodiments where each of the plurality of control information indications includes a plurality of configuration parameters, the combined control information may include a plurality of fields associated with associated values ​​of the plurality of configuration parameters. For a given configuration parameter, the first device 110 may assign a plurality of sorted values ​​to bits of the corresponding field in ascending or descending order to obtain a combined value.

[0091] Based on combined control information having such combined values ​​for configuration parameters, the first device 110 can perform (450) simultaneous uplink transmissions to the second device 120 via multiple antenna panels 115. For example, simultaneous uplink transmissions may include multiple uplink transmissions to the second device 120 via multiple TRPs 125.

[0092] In this configuration, the first device 110 can determine the values ​​of configuration parameters for each of the multiple antenna panels 115 based on combined control information. The first device 110 can then perform uplink transmissions in a plurality of uplink transmissions from the antenna panel 115 to the second device 120 via the corresponding TRP 125, based on the determined values. For example, the first device 110 can determine the values ​​of configuration parameters for antenna panel 115-1 in FIG. 1 and perform uplink transmissions in a plurality of uplink transmissions from antenna panel 115-1 to the second device 120 via the corresponding TRP 125-1.

[0093] As described above, in order to determine the combined control information (430), the first device 110 can sort multiple control information indications. There are various methods for sorting the control information indications. In some example embodiments, the first device 110 can receive from the second device 120 the order of the corresponding indices of the multiple control information indications used to determine the combined control information. The first device 110 can then sort the multiple control information indications based on the received order of the corresponding indices of the multiple control information indications.

[0094] Alternatively or additionally, in some example embodiments, the first device 110 may sort the multiple control information indications based on other factors or parameters. In one example, the first device 110 may sort the multiple control information indications based on the corresponding aggregation level of the control channels on which the multiple control information indications are detected. For example, the control information indication associated with the highest or lowest aggregation level may be determined as the highest sorted control information indication.

[0095] As used herein, the term "ranked highest control information indication" can also be referred to as "first control information indication" or "control information indication in a first position." Similarly, the term "ranked second highest control information indication" can refer to "second control information indication" or "control information indication in a second position." The term "ranked lowest control information indication" can refer to "last control information indication." Furthermore, for example, the first and second control information indications can have the same aggregation level.

[0096] In another example, the first device 110 may sort the multiple control information indications based on corresponding indices of the multiple control channel candidates used to detect the multiple control information indications. For example, the control information indication associated with the PDCCH candidate with the highest or lowest index may be determined as the sorted highest control information indication.

[0097] In another example, the first device 110 may sort the multiple control information indications based on corresponding control channel element indices used for the multiple control information indications. For example, the control information indication associated with the highest or lowest control channel element index may be determined as the sorted highest control information indication.

[0098] In another example, the first device 110 may sequence the multiple control information indications based on the corresponding time positions for receiving them. For example, if multiple control information indications are detected in the same time slot in the same or different CORESET(s), the first control information indication may be the indication detected first in the time domain. In another example, the first control information indication may be configured to be located at a first symbol of the CORESET, and the second control information indication may be configured to be located at a second symbol of the CORESET (or at the second and third symbols, or at the first and third symbols). Alternatively, the second control information indication may be transmitted on the symbol following the symbol in which the first control information indication was detected.

[0099] In another example, the first device 110 may sort the multiple control information indications based on corresponding frequency positions for receiving the multiple control information indications. For example, the control information indication mapped to the lowest or highest CCE index value within the CORESET symbol may be determined as the first control information indication.

[0100] In another example, the first device 110 may sort the multiple control information indications based on corresponding SRS resource sets associated with the multiple control information indications. For example, the first control information indication may be associated with a first SRS resource set and a second SRS resource set, and the second control information indication may be associated with a third SRS resource set and a fourth SRS resource set.

[0101] It should be understood that the example factors described above for determining the order of multiple control information indications are for illustrative purposes only and do not represent any limitation. Any suitable factors or rules can be applied to determine the order. In some example embodiments, these factors and additional factors can be combined to determine the order. Several rules or conditions for determining the order based on one or more factors will now be described.

[0102] The first rule could be that the first control information indication is detected on a control channel candidate with the lowest index and lowest aggregation level, which is among control channel candidates detected on the same control resource set for multiple control information indications. For example, if the control information indication is detected on the same CORESET, then the first control information indication is detected on a lower PDCCH candidate index at a lower aggregation level.

[0103] The second rule could be that the first control information indication is detected before other control information indications that share the same time slot as the first control information indication.

[0104] A third rule could be that the first control information indication is associated with the lowest control channel element index within the control resource set. For example, the control information indication mapped to the lowest CCE index value within the CORESET symbol could be determined as the first control information indication. Alternatively, the first control information indication could be the control information indication detected at the lowest CCE index on the control resource set at the highest aggregation level.

[0105] The fourth rule could be that the first control information indicates association with a first SRS resource set or a certain SRS resource set.

[0106] Several factors and conditions for determining the order of multiple control information indications have been described. These factors, rules, and / or any other suitable factors or rules may be used individually or in any combination to order multiple control information indications. The scope of this disclosure is not limited in this respect.

[0107] Based on the order of multiple control information indications, the first device 110 can sort multiple values ​​for configuration parameters based on the sorted multiple control information indications. Then, the first device 110 can determine combined control information based on the sorted multiple values ​​for the configuration parameters. In other words, the first device 110 can determine the combined code point fields by using combination rules (also called binding rules) on the indicated code point fields associated with the multiple control information indications.

[0108] The combination rule can be based on the ascending or descending order of multiple control information indications. That is, the first device 110 can assign multiple sorted values ​​to the bits of a field in ascending or descending order. For example, the first device 110 can sort different received code point fields such that the code point value indicated by the first control information indication is assigned as the most significant bit (MSB) of the bundled code point value, the code point value indicated by the second control information indication is assigned as MSBs-1 of the bundled code point value, and the code point value indicated by the Nth control information indication is assigned as MSBs-N of the bundled code point value, where N is the number of control information indications and N is an integer greater than 1.

[0109] In another example, the first device 110 may sort different received code point fields such that the code point value indicated by the first control information is assigned as the least significant bit (LSB) of the bundled code point value, the code point value indicated by the second control information is assigned as LSBs+1 of the bundled code point value, and the code point value indicated by the Nth control information is assigned as / LSBs+N of the bundled code point value.

[0110] In this way, it is possible to define how the first device 110 correctly interprets the values ​​of the bundled code point fields, such as PRI / TMPI, second PRI / TPMI, SRI and second SRI, PTRS-DMRS, second PTRS-DMRS, and the corresponding transmission process.

[0111] It should be understood that these example combination rules are for illustrative purposes only and do not imply any limitation. Any suitable combination rules may be applied. The scope of this disclosure is not limited herein.

[0112] Using the SRS resource set indicator as an example code point field for associating configuration parameters, the value of the SRS resource set indicator indicated by the first control information can be assigned as the MSB of the bundled SRS resource set indicator in the combined control information, and the value of the SRS resource set indicator indicated by the Nth control information can be assigned as the LSB. The code point field of the SRS resource set indicator in combined control information such as combined DCI can be represented as follows: [first DCI-SRS resource set indicator, ..., Nth DCI-SRS resource set indicator], where the Nth DCI-SRS resource set indicator is the SRS resource set indicator indicated by the Nth DCI, and N=1...N. For other configuration parameters or other code point fields, the first device 110 can determine the combined value of the corresponding configuration parameters in a similar manner. Therefore, the combined control information can be determined.

[0113] An example embodiment for determining (430) combined control information by the first device 110 has been described. It should be understood that the second device 120 may determine (440) combined control information in a similar manner or based on similar factors or conditions. For simplicity, the detailed determination process of the second device 120 will not be repeated here.

[0114] In some example embodiments, a control information indication among multiple control information indications may include an indication that a transmission scheduled by the control information indication will be executed based on combined control information. This indication may indicate whether the scheduled transmission is considered by the first device 110 to be a transmission scheduled by combined control information such as bundled DCI. For example, the first control information indication may have a field indicating whether the first device 110 will decode it as bundled with other control information indications (and other control information indications found and configured for bundling). In one example, if the indication indicates no bundling, the control information indication is processed as a standalone indication. In another example, if the indication indicates no bundling, the first device 110 may not expect the presence of other control information indications in the candidate locations for the second control information indication.

[0115] Alternatively or additionally, in some example embodiments, the control information indication among the multiple control information indications may include an index of the control information indications among the multiple control information indications. For example, triggering a control information indication may also include a code point field indicating the index of the combined control information indications.

[0116] For example, the first device 110 can be configured with a higher-level parameter bundled-DCI-ULMultiTX having a control information indication number N=2, and simultaneous multi-panel PUSCH transmissions are triggered using two DCIs, where N is the number of control information indications. Each DCI then includes a code point field defining its index number, as follows: the value of the code point field ULMultiTx-DCI-index of the first DCI is set to 1, and the value of the code point field ULMultiTx-DCI-index of the second DCI is set to 2.

[0117] Furthermore, the first device 110 can be configured with a binding list of indicated DCI indexes, for example, the high-level parameter bundle-DCI-list=[2,1]. It defines the code point field of the combined DCI (also known as the bundled DCI code point) as follows: [value associated with the second indicated DCI code point, value associated with the first indicated DCI code point].

[0118] Using the determined combined control information, the first device 110 can perform simultaneous uplink transmission. For example, simultaneous uplink transmission can also be performed based on at least one of SDM or SFN.

[0119] In some example embodiments, combined control information (e.g., code point fields in combined control information) can be used for simultaneous multi-panel PUSCH transmission with both codebook-based and non-codebook-based precoding, wherein the number of Transmission Configuration Indication (TCI) states (UL or combined TCI) is greater than or equal to 2.

[0120] By performing simultaneous uplink transmission based on combined control information, it enables the use of a first device that has the capability to perform simultaneous SFN or SDM-based multi-panel PUSCH transmissions using two or more antenna panels.

[0121] In some example embodiments, the first device 110 may be assumed to be configured with multiple different UL SRS resource sets. The number M of UL SRS resource sets (M is an integer greater than 1) may be equal to 2. N, where N is the number of control information indications, such as the number of DCIs used to trigger simultaneous uplink transmissions.

[0122] Figure 5 illustrates an example of combined control information triggered by simultaneous uplink transmission from multiple antenna panels (Figure 500). The combined information can be combined using the method described with reference to Figure 4. For illustrative purposes, in the description of Figure 5, it is assumed that uplink DCI-triggered PUSCH transmission is transmitted via four antenna panels.

[0123] As shown in the figure, multiple UL SRS resource sets 510 can be transmitted by the first device 110 using multiple symbols in a first time slot (e.g., time slot n-1). For the first device 110 with four antenna panels, the multiple UL SRS resource sets 510 can be referred to as UL SRS resource sets #1, #2, #3, and #4. If the first device 110 cannot transmit the UL SRS resource sets simultaneously, it can transmit them sequentially in time. Otherwise, if the first device 110 is capable of transmitting the UL SRS resource sets simultaneously, it can do so.

[0124] In a second time slot, such as time slot n, multiple DCIs (such as two DCIs, 522 and 524) are sent to the first device 110 using symbols from symbol set 520. The CORESET ID can be the same for both DCIs 522 and 524. DCIs 522 and 524 can be DCI formats 0-1 or any other suitable format. The first device 110 can determine a combined DCI (also known as a bundled DCI) based on DCIs 522 and 524.

[0125] By combining DCIs, the first device 110 can perform simultaneous PUSCH transmissions using symbol set 530 via multiple antenna panels (e.g., four antenna panels). If the total number of non-overlapping subgroups is greater than or equal to the TDM factor, the first device 110 can continue UL SRS transmissions for the remaining subgroups.

[0126] It should be understood that the example symbol indexes or time slot indexes in Figure 5 are for illustrative purposes only and do not represent any limitation. Furthermore, the number of symbols or resources used for different transmissions is also for illustrative purposes and does not represent any limitation.

[0127] Figure 6 illustrates another signaling diagram 600 for simultaneous uplink transmissions according to some example embodiments of the present disclosure. Signaling diagram 600 relates to a plurality of TRPs 125-1, 125-2, 125-3, and 125-4 for the first device 110 and the second device 120 in Figure 1. For illustrative purposes, signaling diagram 600 will be described with reference to Figure 1. In the following description, it is assumed that TRP 125-1 is a serving TRP and that the number of antenna panels 115 is four.

[0128] In operation, the first device 110 may send (604) capability information to the second device 120 via TRP 125-1. The second device 120 may receive (608) capability information via TRP 125-1. In some example embodiments, the capability information may be related to the use of combined control information, such as combined DCI for simultaneous uplink transmission via multiple antenna panels. The capability information may also include the number of control information to be combined.

[0129] Alternatively or additionally, in some example embodiments, the capability information may be related to the number of TX antenna panels of the first device 110 used for simultaneous uplink transmission and UL SRS transmission. The capability information may also indicate support for more than two UL SRS resource set configurations. It should be understood that in some example embodiments, different configuration information may be sent in combination or separately.

[0130] Based on the simultaneous multi-panel capability of the first device 110, the network indication and the triggering of the corresponding PUSCH transmission can be flexibly expanded according to the number of individual DCI transmissions.

[0131] In some example embodiments, the second device 120 may send (612) configuration information to the first device 110 via TRP 125-1. The first device 110 may receive (616) configuration information. For example, the first device 110 may be configured with the high-level parameter DCI-bundling-ULMultiTX.

[0132] In some example embodiments, the second device 120 may send (620) a configuration of the UL SRS resource set to the first device 110 via TRP 125-1. The first device 110 may receive (624) the configuration of the UL SRS resource set. For example, the first device 110 may be configured with multiple UL SRS resource sets (such as four UL SRS resource sets), one or more UL SRS resource sets having the same or different number of antenna ports, wherein the UL SRS resource sets are configured with, for example, the unifiedFollowTCIStateSRS information element and use an equivalent "codebook".

[0133] In some example embodiments, depending on the simultaneous transmission capability of the first device 110, the first device 110 can transmit (628 / 636 / 644 / 652) UL SRS resource sets #1, #2, #3, and #4 to the second device 120 via TRPs 125-1, 125-2, 125-3, and 125-4, respectively. The second device 120 can receive (632 / 640 / 648 / 656) UL SRS resource sets #1, #2, #3, and #4 via TRPs 125-1, 125-2, 125-3, and 125-4, respectively. For example, the first device 110 can transmit (628) UL SRS resource set #1 to the second device 120 via TRP 125-1 through antenna panel #1 (such as antenna panel 115-1). The second device 120 can receive (632) UL SRS resource set #1 via TRP 125-1.

[0134] If the first device 110 has the capability for simultaneous SRS transmission, then the first device 110 can simultaneously transmit (628 / 636 / 644 / 652) UL SRS resource sets #1, #2, #3, and #4. Otherwise, the first device 110 can transmit (628 / 636 / 644 / 652) UL SRS resource sets #1, #2, #3, and #4 in chronological order.

[0135] The second device 120 sends (660 / 668) control information indications to the first device 110 via TRP 125-1. The first device 110 receives (664 / 672) control information indications, for example, via antenna panel 115-1. For example, the control information indications may be DCIs on the PDCCH, which may include code point fields for PRI, PRI-2, SRI, SRI-2, SRS set indicators, etc.

[0136] The first device 110 determines (676) the combined control information. For example, the first device 110 can determine the combined DCI code points on multiple different DCIs, such as PRI, PRI-2, SRI, SRI-2, SRS set indicator, etc.

[0137] Based on combined control information, the first device 110 performs (680) simultaneous uplink transmission to the second device 120 via multiple TRPs 125-1, 125-2, 125-3, and 125-4. For example, simultaneous uplink transmission can be performed via multiple antenna panels 115-1, 115-2, 115-3, and 115-4. The second device 120 receives (684 / 688 / 692 / 696) simultaneous uplink transmissions via multiple TRPs 125-1, 125-2, 125-3, and 125-4 respectively. For example, based on combined DCI code points on multiple different DCIs, simultaneous multi-panel PUSCH transmission can be performed on multiple antenna panels. The number of antenna panels can be greater than or equal to 2.

[0138] By performing simultaneous uplink transmission based on combined control information, it enables the use of a first device that has the capability to perform simultaneous SFN or SDM-based multi-panel PUSCH transmissions using two or more antenna panels.

[0139] Several example embodiments of instructions regarding simultaneous uplink transmissions have been described. It should be understood that signaling diagrams 400 and 600 are for illustrative purposes only and do not represent any limitation. Signaling diagrams 400 and 600 can be used in any suitable combination or individually. By using these signaling diagrams, simultaneous uplink transmissions, such as multi-panel simultaneous uplink transmissions, can be implemented. Example Methods

[0140] Figure 7 shows a flowchart of an example method 700 implemented at a first device according to some example embodiments of the present disclosure. For the purposes of discussion, the method 700 will be described from the perspective of the first device 110 in Figure 1.

[0141] At frame 710, the first device 110 receives from the second device multiple control information instructions for scheduling simultaneous uplink transmissions to the second device.

[0142] At frame 720, the first device 110 determines combined control information for simultaneous uplink transmission via multiple antenna panels by combining multiple control information indications.

[0143] At frame 730, the first device 110 performs simultaneous uplink transmission to the second device via multiple antenna panels based on combined control information.

[0144] In some example embodiments, method 700 further includes: sending capability information to a second device for combining different control information indications for simultaneous uplink transmission; and receiving configuration information from the second device indicating at least the combination of multiple control information indications.

[0145] In some example embodiments, the capability information indicates at least one of the following: the capability to support a combination of different control information indications; the number of different control information indications supported by the first device for combination; or the time offset between a first time point for receiving multiple control information indications and a second time point for performing simultaneous uplink transmission.

[0146] In some example embodiments, the configuration information also indicates the number of multiple control information indications to be combined.

[0147] In some example embodiments, multiple control information indications are received via multiple control channels, wherein the multiple control channels share a search space set and a control resource set, or wherein the multiple control channels differ in at least one of the search space set or the control resource set.

[0148] In some example embodiments, method 700 further includes: sorting a plurality of control information indications; sorting a plurality of values ​​based on the sorted plurality of control information indications for configuration parameters; and determining combined control information based on the sorted plurality of values ​​for configuration parameters.

[0149] In some example embodiments, the multiple control information indications are ordered based on at least one of the following: the corresponding aggregation level of the control channels on which the multiple control information indications are detected; the corresponding index of the multiple control channel candidates for detecting the multiple control information indications; the corresponding control channel element index of the multiple control information indications; the corresponding time position for receiving the multiple control information indications; the corresponding frequency position for receiving the multiple control information indications; or the corresponding set of probe reference signals associated with the multiple control information indications.

[0150] In some example embodiments, multiple control information indications are ordered by determining a first control information indication in a first position among the multiple control information indications based on at least one of the following: a first rule, wherein the first control information indication is detected on a control channel candidate with the lowest index and lowest aggregation level, which is among control channel candidates detected on the same control resource set for multiple control information indications; a second rule, wherein the first control information indication is detected before other control information indications that share the same time slot with the first control information indication; a third rule, wherein the first control information indication is associated with the lowest control channel element index within the control resource set; or a fourth rule, wherein the first control information indication is associated with a first probe reference signal resource set.

[0151] In some example embodiments, method 700 further includes: assigning a sorted plurality of values ​​to bits of a field of a configuration parameter in ascending or descending order.

[0152] In some example embodiments, method 700 further includes: determining, for an antenna panel among a plurality of antenna panels, a value of a configuration parameter based on combined control information; and performing an uplink transmission among a plurality of uplink transmissions from the antenna panel via a corresponding transmission receiving point to a second device based on the determined value.

[0153] In some example embodiments, the configuration parameters include at least one of the following: a probe reference signal SRS resource set indicator, SRI, a second SRI, precoding information and layer number, second precoding information, antenna port, phase tracking reference signal and demodulation reference signal PTRS-DMRS association, and a second PTRS-DMRS association.

[0154] In some example embodiments, the control information indication among the multiple control information indications includes at least one of the following: an indication that the transmission scheduled by the control information indication will be executed based on the combined control information, or an index of the control information indication among the multiple control information indications.

[0155] In some example embodiments, method 700 further includes receiving from the second means a sequence of corresponding indices of multiple control information indications for determining combined control information.

[0156] In some example embodiments, uplink transmission is also performed based on at least one of the following: spatial multiplexing, or single-frequency network.

[0157] In some example embodiments, the first device includes a terminal device, and the second device includes a network device.

[0158] Figure 8 shows a flowchart of an example method 800 implemented at a second device according to some example embodiments of the present disclosure. For the purposes of discussion, method 800 will be described from the perspective of the second device 120 in Figure 1.

[0159] At frame 810, the second device 120 sends multiple control information instructions to the first device for scheduling simultaneous uplink transmissions to the second device.

[0160] At box 820, the second device 120 determines combined control information for simultaneous uplink transmission via multiple antenna panels of the first device by combining multiple control information indications.

[0161] At frame 830, the second device 120 receives simultaneous uplink transmissions from multiple antenna panels of the first device based on combined control information.

[0162] In some example embodiments, method 800 further includes: receiving capability information from a first device for combining different control information indications for simultaneous uplink transmission; and sending configuration information to the first device that indicates at least the combination of multiple control information indications.

[0163] In some example embodiments, the capability information indicates at least one of the following: the capability to support a combination of different control information indications; the number of different control information indications supported by the first device for combination; or the time offset between a first time point for receiving multiple control information indications and a second time point for performing simultaneous uplink transmission.

[0164] In some example embodiments, the configuration information also indicates the number of multiple control information indications to be combined.

[0165] In some example embodiments, the first device includes a terminal device, and the second device includes a network device. Example devices, apparatus, and media.

[0166] In some example embodiments, a first device capable of performing any of the methods 700 (e.g., the first device 110 in FIG1) may include components for performing the corresponding operations of method 700. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit system or a software module. The first device may be implemented as or included in the first device 110 in FIG1.

[0167] In some example embodiments, the first device includes: means for receiving from the second device a plurality of control information indications for scheduling simultaneous uplink transmission to the second device; means for determining combined control information for simultaneous uplink transmission via a plurality of antenna panels by combining the plurality of control information indications; and means for performing simultaneous uplink transmission to the second device via the plurality of antenna panels based on the combined control information.

[0168] In some example embodiments, the first device further includes: a component for sending capability information to the second device; a component for combining different control information indications for simultaneous uplink transmission; and a component for receiving configuration information from the second device that indicates at least the combination of multiple control information indications.

[0169] In some example embodiments, the capability information indicates at least one of the following: the capability to support a combination of different control information indications; the number of different control information indications supported by the first device for combination; or the time offset between a first time point for receiving multiple control information indications and a second time point for performing simultaneous uplink transmission.

[0170] In some example embodiments, the configuration information also indicates the number of multiple control information indications to be combined.

[0171] In some example embodiments, multiple control information indications are received via multiple control channels, wherein the multiple control channels share a search space set and a control resource set, or wherein the multiple control channels differ in at least one of the search space set or the control resource set.

[0172] In some example embodiments, the plurality of control information indications each include a plurality of values ​​for configuration parameters, and the first device further includes: a component for sorting the plurality of control information indications; a component for sorting the plurality of values ​​for configuration parameters based on the sorted plurality of control information indications; and a component for determining combined control information based on the sorted plurality of values ​​for configuration parameters.

[0173] In some example embodiments, the multiple control information indications are ordered based on at least one of the following: the corresponding aggregation level of the control channels on which the multiple control information indications are detected; the corresponding index of the multiple control channel candidates for detecting the multiple control information indications; the corresponding control channel element index of the multiple control information indications; the corresponding time position for receiving the multiple control information indications; the corresponding frequency position for receiving the multiple control information indications; or the corresponding set of probe reference signals associated with the multiple control information indications.

[0174] In some example embodiments, multiple control information indications are ordered by determining a first control information indication in a first position among the multiple control information indications based on at least one of the following: a first rule, wherein the first control information indication is detected on a control channel candidate with the lowest index and lowest aggregation level, which is among control channel candidates detected on the same control resource set for multiple control information indications; a second rule, wherein the first control information indication is detected before other control information indications that share the same time slot with the first control information indication; a third rule, wherein the first control information indication is associated with the lowest control channel element index within the control resource set; or a fourth rule, wherein the first control information indication is associated with a first probe reference signal resource set.

[0175] In some example embodiments, the combined control information includes fields for configuring parameters, and the first device further includes a component for assigning bits of sorted multiple values ​​to the fields of the configuration parameters in ascending or descending order.

[0176] In some example embodiments, the uplink transmission simultaneously includes multiple uplink transmissions to the second device via multiple transmission receiving points. The first device further includes: a component for determining the value of a configuration parameter for an antenna panel among multiple antenna panels based on combined control information; and a component for performing an uplink transmission among the multiple uplink transmissions from the antenna panel to the second device via the corresponding transmission receiving point based on the determined value.

[0177] In some example embodiments, the configuration parameters include at least one of the following: a probe reference signal SRS resource set indicator, SRI, a second SRI, precoding information and layer number, second precoding information, antenna port, phase tracking reference signal and demodulation reference signal PTRS-DMRS association, and a second PTRS-DMRS association.

[0178] In some example embodiments, the control information indication among the multiple control information indications includes at least one of the following: an indication that the transmission scheduled by the control information indication will be executed based on the combined control information, or an index of the control information indication among the multiple control information indications.

[0179] In some example embodiments, the first device further includes a component for receiving from the second device the order of corresponding indices of a plurality of control information indications for determining combined control information.

[0180] In some example embodiments, uplink transmission is also performed based on at least one of the following: spatial multiplexing, or single-frequency network.

[0181] In some example embodiments, the first device includes a terminal device, and the second device includes a network device.

[0182] In some example embodiments, the first device further includes components for performing additional operations in some example embodiments of method 700 or the first device 110. In some example embodiments, the components include at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, affect the performance of the first device.

[0183] In some example embodiments, a second means capable of performing any of the methods 800 (e.g., the second means 120 in FIG. 1) may include components for performing the corresponding operations of method 800. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The second means may be implemented as or included in the second means 120 in FIG. 1.

[0184] In some example embodiments, the second device includes: components for sending to the first device a plurality of control information indications for scheduling simultaneous uplink transmission to the second device; components for determining combined control information for simultaneous uplink transmission via a plurality of antenna panels of the first device by combining the plurality of control information indications; and components for receiving simultaneous uplink transmission from the plurality of antenna panels of the first device based on the combined control information.

[0185] In some example embodiments, the second device further includes: a component for receiving capability information from the first device; a component for combining different control information indications for simultaneous uplink transmission; and a component for sending configuration information to the first device that indicates at least the combination of multiple control information indications.

[0186] In some example embodiments, the capability information indicates at least one of the following: the capability to support a combination of different control information indications; the number of different control information indications supported by the first device for combination; or the time offset between a first time point for receiving multiple control information indications and a second time point for performing simultaneous uplink transmission.

[0187] In some example embodiments, the configuration information also indicates the number of multiple control information indications to be combined.

[0188] In some example embodiments, the first device includes a terminal device, and the second device includes a network device.

[0189] In some example embodiments, the second device further includes components for performing additional operations in some example embodiments of method 800 or second device 120. In some example embodiments, the components include at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, affect the performance of the second device.

[0190] Figure 9 is a simplified block diagram of a device 900 suitable for implementing an example embodiment of the present disclosure. The device 900 can be provided to implement a communication device, such as the first device 110 or the second device 120 shown in Figure 1. As shown, the device 900 includes one or more processors 910, one or more memories 920 coupled to the processors 910, and one or more communication modules 940 coupled to the processors 910.

[0191] Communication module 940 is used for bidirectional communication. Communication module 940 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface can represent any interface required for communication with other network elements. In some example embodiments, communication module 940 may include at least one antenna.

[0192] Processor 910 can be of any type suitable for a local technology network, and by way of non-limiting example, can include one or more of the following: general-purpose computer, special-purpose computer, microprocessor, digital signal processor (DSP), and processor based on a multi-core processor architecture. Device 900 can have multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock synchronized with the main processor.

[0193] Memory 920 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 924, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disc (CD), digital video disk (DVD), optical disc, laser disc, and other magnetic and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 922 and other volatile memories that do not persist during power outages.

[0194] Computer program 930 includes computer-executable instructions that are executed by an associated processor 910. The instructions of program 930 may include instructions for performing operations / actions of some example embodiments of this disclosure. Program 930 may be stored in memory (e.g., ROM 924). Processor 910 can perform any suitable actions and processes by loading program 930 into RAM 922.

[0195] Example embodiments of this disclosure can be implemented via program 930, enabling device 900 to execute any of the processes of this disclosure discussed with reference to Figures 4 through 8. Example embodiments of this disclosure can also be implemented via hardware or a combination of software and hardware.

[0196] In some example embodiments, program 930 may be tangibly contained in a computer-readable medium, which may be included in device 900 (such as memory 920) or other storage device accessible to device 900. Device 900 may load program 930 from the computer-readable medium into RAM 922 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. The term "non-transitory" as used herein refers to a limitation on the medium itself (i.e., tangible, not tactile), rather than a limitation on the persistence of data storage (e.g., RAM and ROM).

[0197] Figure 10 shows an example of a computer-readable medium 1000, which may be in the form of a CD, DVD, or other optical storage disc. A program 930 is stored on the computer-readable medium 1000.

[0198] Generally, the various embodiments of this disclosure can be implemented using hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented using hardware, while others can be implemented using firmware or software that can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, apparatuses, systems, techniques, or methods described herein can be implemented using hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0199] Some exemplary embodiments of this disclosure also provide at least one computer program product tangibly stored on a computer-readable medium, such as a non-transitory computer-readable medium. The computer program product includes computer-executable instructions, such as instructions included in a program module, that execute in a device on a target physical or virtual processor to perform any of the methods described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform a particular task or implement a particular abstract data type. In various embodiments, the functionality of a program module can be combined or split among program modules as needed. The machine-executable instructions of a program module can execute within a local or distributed device. In a distributed device, a program module can reside on both local and remote storage media.

[0200] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a stand-alone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0201] In the context of this disclosure, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, etc.

[0202] Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination of the foregoing. More specific examples of computer-readable storage media will include electrical connections having one or more wires, portable computer floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable optical disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0203] Furthermore, although operations are described in a specific order, this should not be construed as requiring the operations to be performed in the specific order shown or sequentially, or to perform all of the shown operations to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the foregoing discussion, these should not be construed as limiting the scope of this disclosure, but rather as descriptions of features that may be specific to particular embodiments. Unless explicitly stated otherwise, certain features described in the context of a single embodiment may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated otherwise, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0204] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the disclosure as defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms of implementing the claims.

Claims

1. A first device, comprising: At least one processor; And at least one memory, the at least one memory storing instructions, which, when executed by the at least one processor, cause the first device to: receive from the second device a plurality of control information indications for scheduling simultaneous uplink transmissions to the second device; determine combined control information for the simultaneous uplink transmissions via a plurality of antenna panels by combining the plurality of control information indications; and, based on the combined control information, perform the simultaneous uplink transmissions to the second device via the plurality of antenna panels.

2. The first apparatus of claim 1, wherein the first apparatus is further configured to: send capability information to the second apparatus for combining different control information indications for the simultaneous uplink transmission; and receive configuration information from the second apparatus indicating at least the combination of the plurality of control information indications.

3. The first apparatus of claim 2, wherein the capability information indicates at least one of the following: the capability to support a combination of different control information indications, the number of different control information indications supported by the first apparatus for combination, or the time offset between a first time point for receiving the plurality of control information indications and a second time point for performing the simultaneous uplink transmission.

4. The first apparatus according to claim 2 or 3, wherein the configuration information further indicates the number of the plurality of control information indications to be combined.

5. The first apparatus according to any one of claims 1 to 4, wherein the plurality of control information indications are received via a plurality of control channels, wherein the plurality of control channels share a search space set and a control resource set, or wherein the plurality of control channels differ in at least one of the search space set or the control resource set.

6. The first apparatus according to any one of claims 1 to 5, wherein the plurality of control information indications each includes a plurality of values ​​for a configuration parameter, and the first apparatus is further configured to: sort the plurality of control information indications; sort the plurality of values ​​based on the sorted plurality of control information indications for the configuration parameter; and determine the combined control information based on the sorted plurality of values ​​for the configuration parameter.

7. The first apparatus of claim 6, wherein the plurality of control information indications are ordered based on at least one of: a corresponding aggregation level of control channels detected on the plurality of control information indications, a corresponding index for detecting a plurality of control channel candidates of the plurality of control information indications, a corresponding control channel element index of the plurality of control information indications, a corresponding time position for receiving the plurality of control information indications, a corresponding frequency position for receiving the plurality of control information indications, or a corresponding set of probe reference signals associated with the plurality of control information indications.

8. The first apparatus of claim 7, wherein the plurality of control information indications are ordered by determining a first control information indication located in a first position among the plurality of control information indications based on at least one of the following: a first rule, wherein the first control information indication is detected on a control channel candidate having the lowest index and the lowest aggregation level, the control channel candidate being among control channel candidates detected on the same control resource set for the plurality of control information indications; a second rule, wherein the first control information indication is detected before other control information indications sharing the same time slot as the first control information indication; a third rule, wherein the first control information indication is associated with the lowest control channel element index within the control resource set; or a fourth rule, wherein the first control information indication is associated with a first probe reference signal resource set.

9. The first apparatus according to any one of claims 6 to 8, wherein the combined control information includes a field for the configuration parameters, and the first apparatus is further configured to: assign the sorted plurality of values ​​to bits of the field in ascending or descending order.

10. The first apparatus according to any one of claims 6 to 9, wherein the simultaneous uplink transmission includes a plurality of uplink transmissions to the second apparatus via a plurality of transmission receiving points, and the first apparatus is further configured to: determine, for an antenna panel among the plurality of antenna panels, a value of the configuration parameter based on the combined control information; and, based on the determined value, perform an uplink transmission among the plurality of uplink transmissions from the antenna panel to the second apparatus via a corresponding transmission receiving point.

11. The first apparatus according to any one of claims 6 to 10, wherein the configuration parameters include at least one of the following: a probe reference signal SRS resource set indicator, an SRS resource indicator, a second SRS resource indicator, precoding information and layer number, second precoding information, an antenna port, a phase tracking reference signal and a demodulation reference signal PTRS-DMRS association, and a second PTRS-DMRS association.

12. The first apparatus according to any one of claims 1 to 11, wherein the control information indication in the plurality of control information indications includes at least one of the following: an indication that a transmission scheduled by the control information indication will be executed based on the combined control information, or an index of the control information indication in the plurality of control information indications.

13. The first device according to any one of claims 1 to 12, wherein the first device is further configured to: receive from the second device the order of corresponding indices of the plurality of control information indications for determining the combined control information.

14. The first apparatus according to any one of claims 1 to 13, wherein the simultaneous uplink transmission is further performed based on at least one of the following: spatial multiplexing, or a single-frequency network.

15. The first apparatus according to any one of claims 1 to 14, wherein the first apparatus includes a terminal device and the second apparatus includes a network device.

16. A second device, comprising: At least one processor; And at least one memory, the at least one memory storing instructions, which, when executed by the at least one processor, cause the second device to: send to the first device a plurality of control information indications for scheduling simultaneous uplink transmissions to the second device; determine combined control information for the simultaneous uplink transmissions via a plurality of antenna panels of the first device by combining the plurality of control information indications; and receive the simultaneous uplink transmissions from the plurality of antenna panels of the first device based on the combined control information.

17. The second apparatus of claim 16, wherein the second apparatus is further configured to: receive capability information from the first apparatus for combining different control information indications for the simultaneous uplink transmission; and send configuration information to the first apparatus indicating at least the combination of the plurality of control information indications.

18. The second apparatus of claim 17, wherein the capability information indicates at least one of the following: the capability to support a combination of different control information indications, the number of different control information indications supported by the first apparatus for combination, or the time offset between a first time point for receiving the plurality of control information indications and a second time point for performing the simultaneous uplink transmission.

19. The second apparatus according to claim 17 or 18, wherein the configuration information further indicates the number of the plurality of control information indications to be combined.

20. The second apparatus according to any one of claims 16 to 19, wherein the first apparatus includes a terminal device and the second apparatus includes a network device.

21. A method comprising: At the first device, multiple control information instructions for scheduling simultaneous uplink transmissions to the second device are received from the second device. The combined control information is used to determine combined control information for the simultaneous uplink transmission via the multiple antenna panels; and based on the combined control information, the simultaneous uplink transmission to the second device via the multiple antenna panels is executed.

22. A method comprising: At the second device, multiple control information instructions for scheduling simultaneous uplink transmission to the second device are sent to the first device. The combined control information is used to determine combined control information for the simultaneous uplink transmission via the multiple antenna panels of the first device by combining the multiple control information indications; and the simultaneous uplink transmission is received from the multiple antenna panels of the first device based on the combined control information.

23. A first device, comprising: A component for receiving from a second device multiple control information instructions for scheduling simultaneous uplink transmissions to the second device; A component for determining combined control information for simultaneous uplink transmission via multiple antenna panels by combining the multiple control information indications; And components for performing the simultaneous uplink transmission to the second device via the plurality of antenna panels based on the combined control information.

24. A second device, comprising: A component for sending to the first device multiple control information instructions for scheduling simultaneous uplink transmission to the second device; A component for determining combined control information for simultaneous uplink transmission via multiple antenna panels of the first device by combining the multiple control information indications; And components for receiving the simultaneous uplink transmission from the plurality of antenna panels of the first device based on the combined control information.

25. A computer-readable medium comprising instructions stored thereon, the instructions being configured to cause a device to perform at least the method of claim 21 or the method of claim 22.

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