Method and apparatus for uplink transmission

Abstract

[0003] Embodiments of the present disclosure relate to a method and apparatus for transmit reception point (TRP) adaptation for energy efficiency. A terminal device receives transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and performs simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states, respectively. In this way, a new transmission mode using a unified TCI framework is provided, and energy efficiency is improved.

Description

[Technical Field]

[0001] Various exemplary embodiments relate to the field of telecommunications, and more particularly to methods, devices, apparatus, and computer-readable storage media for uplink transmission. [Background technology]

[0002] In 3GPP Release 18, a unified transmission control indicator (TCI) state framework for multiple downlink (DL) and uplink (UL) TCI states in multiple transmission / reception point (TRP) cases is being studied to enable multiple indicated TCI states to support the operation of multiple TRPs. Additionally, it has been proposed to facilitate simultaneous multiple panel UL transmissions to obtain higher throughput and reliability.

[0003] However, multi-panel simultaneous UL transmission in multi-TRP systems requires further research to improve energy efficiency. Summary of the Invention

[0004] Generally, the exemplary embodiments of the present disclosure provide a solution for uplink multi-panel transmission.

[0005] In a first aspect, a terminal device is provided, the terminal device may include one or more processors and one or more transceivers communicatively connected to the one or more processors, the one or more processors being configured to: receive, from a network device, transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more Transmission Configuration Indicator (TCI) states; and perform, based on the transmission configuration information, simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states, respectively.

[0006] In a second aspect, a network device is provided, the network device may include one or more processors and one or more transceivers communicatively connected to the one or more processors, the one or more processors configured to: generate transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states; and transmit the transmission configuration information to a terminal device.

[0007] In a third aspect, a method in a terminal device is provided, which may include receiving, from a network device, transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states, respectively, based on the transmission configuration information.

[0008] In a fourth aspect, a method in a network device is provided, which may include generating transmission configuration information, where the transmission configuration information indicates simultaneous transmission or simultaneous reception on a same transmission resource for two or more TCI states, and transmitting the transmission configuration information to a terminal device.

[0009] In a fifth aspect, there is provided an apparatus for a terminal device, which may include: means for receiving transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states; and means for performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information.

[0010] In a sixth aspect, an apparatus for network equipment is provided, the apparatus may comprise: means for generating transmission configuration information, where the transmission configuration information indicates simultaneous transmission or simultaneous reception on a same transmission resource for two or more TCI states; and means for transmitting the transmission configuration information.

[0011] In a seventh aspect, a terminal device is provided, the terminal device may include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured, by the at least one processor, to cause the terminal device to receive transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and to perform simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information.

[0012] In an eighth aspect, a network device is provided, the network device may include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to cause the network device to: generate transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and transmit the transmission configuration information to a terminal device.

[0013] In a ninth aspect, there is provided a non-transitory computer readable medium comprising program instructions for causing an apparatus to carry out a method according to at least any one of the third and fourth aspects above.

[0014] In a tenth aspect, an apparatus is provided comprising: means for receiving transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states; and means for performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information.

[0015] In an eleventh aspect, there is provided an apparatus comprising: means for generating transmission setting information, the transmission setting information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states; and means for transmitting the transmission setting information.

[0016] In a twelfth aspect, a computer program is provided that includes instructions that, when executed by an apparatus, cause the apparatus to at least receive transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and perform simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states, respectively, based on the transmission configuration information.

[0017] In a thirteenth aspect, there is provided a computer program comprising instructions which, when executed by an apparatus, cause the apparatus to at least generate transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, and transmit the transmission configuration information.

[0018] In a fourteenth aspect, a terminal device is provided, the terminal device may include: a receiving circuit configured to receive transmission setting information, the transmission setting information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states; and an executing circuit configured to execute simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission setting information, respectively.

[0019] In a fifteenth aspect, a network device is provided, the network device may include: a generating circuit configured to generate transmission setting information, the transmission setting information indicating simultaneous transmission or simultaneous reception on a same transmission resource for two or more TCI states; and a transmitting circuit configured to transmit the transmission setting information.

[0020] It should be understood that the Summary is not intended to identify key features or essential features of the embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become readily apparent through the following description. [Brief explanation of the drawings]

[0021] Exemplary embodiments will now be described with reference to the accompanying drawings. [Figure 1] FIG. 1 illustrates an exemplary communication network in which embodiments of the present disclosure may be implemented. [Figure 2A] FIG. 2A is an example schematic diagram of a sounding reference signal (SRS) transmission in some embodiments of the present disclosure. [Figure 2B] FIG. 2B illustrates another exemplary schematic diagram for SRS transmission according to some embodiments of the present disclosure. [Figure 3] FIG. 3 illustrates an exemplary flowchart of a method implemented in a terminal device in some embodiments of the present disclosure. [Figure 4] FIG. 4 illustrates an example simplified block diagram of an example simultaneous transmission configuration according to some embodiments of the present disclosure. [Figure 5] FIG. 5 illustrates another example schematic diagram of a scenario in which antenna panels of a terminal device have different capabilities, according to some embodiments of the present disclosure. [Figure 6] FIG. 6 illustrates a simplified block diagram of an example of a simultaneous transmission configuration according to some exemplary embodiments of the present disclosure. [Figure 7]FIG. 7 is an example of a simplified block diagram of another example of a simultaneous transmission configuration according to some exemplary embodiments of the present disclosure. [Figure 8] FIG. 8 illustrates an example of a simplified block diagram of another example of a simultaneous transmission configuration according to some embodiments of the present disclosure. [Figure 9] FIG. 9 illustrates an exemplary flowchart of a method implemented in a terminal device in some embodiments of the present disclosure. [Figure 10] FIG. 10 illustrates an exemplary flowchart of a method implemented in a network device in accordance with some embodiments of the present disclosure. [Figure 11] FIG. 11 shows an example of a simplified block diagram of an apparatus suitable for practicing exemplary embodiments of the present disclosure. [Figure 12] 12 illustrates a block diagram of an exemplary computer-readable medium in accordance with some exemplary embodiments of the present disclosure. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. DETAILED DESCRIPTION OF THE INVENTION

[0022] The principles of the present disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are provided for illustrative purposes to help those skilled in the art understand and practice the present disclosure, and are not intended to imply any limitation on the scope of the present disclosure. The disclosure described herein may be implemented in various forms other than those described below.

[0023] 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 belongs.

[0024] References in this disclosure to "one embodiment," "embodiment," "exemplary embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not all embodiments need include the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is understood that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments, whether or not explicitly stated.

[0025] Although terms such as "first" and "second" may be used herein to describe various elements, it should be understood that these elements are not limited by these terms. These terms are merely used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of the exemplary embodiments. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0026] The terminology in the examples is for the purpose of describing particular embodiments and is not intended to limit the exemplary embodiments. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly dictates otherwise. As used herein, it will be further understood that the terms "comprises," "comprising," "has," "having," "includes," and / or "including" identify the presence of stated features, elements, and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. As used herein, "at least one of: " and "at least one of " and similar expressions in which a list of two or more elements is joined by "and" or "or" mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0027] As used in this application, the term "circuit" means (a) hardware-only circuit implementations (e.g., analog and / or digital-only implementations); (b) a combination of hardware circuitry and software (if applicable); (i) a combination of analog and / or digital hardware circuitry and software / firmware; (ii) software (including digital signal processors), software, and hardware processor portions with memory that work together to cause a device, such as a mobile phone or server, to perform various functions; (c) A hardware circuit or processor, such as a microprocessor or part of a microprocessor, that requires software (e.g., firmware) to operate, but the software may be absent when not required for operation; It may refer to one or more or all of the following:

[0028] This definition of circuit applies to all uses of the term in this application, including any claims. As a further example, as used herein, the term circuit also covers simply a hardware circuit or processor (or processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware implementation. The term circuit also covers, for example, a baseband or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network equipment, or other computing or network equipment, if applicable to the particular claim element.

[0029] As used herein, the term "communication network" refers to a network conforming to any suitable communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), or Narrowband Internet of Things (NB-IoT). Furthermore, communications between terminal devices and network devices in a communication network may be performed according to any suitable generation of communication protocols, including, but not limited to, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G), or further sixth-generation (6G) communication protocols, and / or any other protocols currently known or developed in the future. Embodiments of the present disclosure may be applied to various communication systems. Given the rapid development of communications, there will, of course, be future communication technologies and systems in which the present disclosure may be embodied. The scope of the present disclosure should not be considered limited to only the aforementioned systems.

[0030] As used herein, the term "network equipment" refers to a node in a communication network through which terminal equipment accesses the network and receives services therefrom. Depending on the terminology and technology applied, network equipment may refer to a base station (BS) or access point (AP), e.g., a Node B (NodeB or NB), evolved Node B (eNodeB or eNB), NR NB (also referred to as gNB), remote radio unit (RRU), radio header (RH), remote radio head (RRH), relay, femto, pico, or other low-power node.

[0031] The term "terminal equipment" refers to any end device capable of wireless communication. By way of example and not limitation, terminal equipment may also be referred to as communication equipment, user equipment (UE), subscriber station (SS), mobile subscriber station, mobile station (MS), or access terminal (AT). Terminal equipment includes, but is not limited to, mobile phones, cellular phones, smartphones, voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal equipment, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal equipment such as digital cameras, gaming terminal equipment, music storage and playback appliances, in-vehicle wireless terminal equipment, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, wearables such as watches, 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 the context of industrial and / or automated processing chains), consumer electronics devices, devices operating in commercial and / or industrial wireless networks, etc. In the following description, the terms "terminal equipment," "communications equipment," "terminal equipment," "user equipment," and "UE" may be used interchangeably.

[0032] As used herein, the term "TRP" refers to a transmission / reception point having an antenna array (having one or more antenna elements) on a terminal located at a specific geographic location, which can be used to transmit and receive signals to and from network equipment. Although several embodiments of the present disclosure have been described with reference to two exemplary TRPs, these embodiments are for illustrative purposes and are intended to assist those skilled in the art in understanding and practicing the present disclosure, and are not intended to imply any limitation on the scope of the present disclosure. It should be understood that the present disclosure described herein may be implemented in various manners other than those described below.

[0033] As mentioned previously, a unified transmission control indicator (TCI) state framework for multiple downlink (DL) and uplink (UL) TCI states in the multi-transmit / receive point (TRP) case has been studied and also proposed to facilitate simultaneous multi-panel UL transmission for higher throughput and reliability. However, simultaneous multi-panel UL transmission in multi-TRP systems requires further research to improve energy efficiency.

[0034] In one type of multi-TRP scheme, a UE may be configured to transmit in a simultaneous transmission mode. In this mode, the UE may simultaneously transmit two (or more) of the same information, e.g., the same transmission block (TB), the same time-frequency resource, and the same DMRS, but the UE transmits the information using multiple antenna panels or groups. Because of its similarity to a single-frequency network (SFN) in transmission mode, this simultaneous transmission mode may also be referred to as, for example, but not limited to, an SFN mode. In SFN mode, one panel or antenna group typically includes up to two transceivers with dual-polarized antenna elements, so the transmission rank may be one or two. Different antenna panels or groups may have different capabilities in terms of the number of ports available for transmission on the panel. In this disclosure, the terms antenna panel (or panel) and antenna group (or antenna panel and antenna group) may be used interchangeably. For example, if an antenna panel or multiple antenna panels are used, the terms antenna group or multiple antenna groups may be used accordingly. For simplicity, redundant descriptions will not be provided.

[0035] The inventors have realized that the advantage of multi-TRP operation is that it provides communication robustness or capacity improvement. It is important to focus on multi-TRP to facilitate simultaneous multi-panel UL transmissions for higher UL throughput / reliability.

[0036] In the unified TCI state framework, a single TCI state can be indicated to the UE, and this TCI state or the RS(s) indicated by the TCI state can be used as a transmission / reception precondition for DL transmissions of, for example, the physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), and channel state indicator reference signal (CSI-RS) and / or UL transmissions of the physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), and sounding reference signal (SRS). In Release 17, only one unified TCI state could be indicated to the UE, either jointly for UL and DL transmissions or separately for DL and UL transmissions, and simultaneous transmissions (or other repeated or multi-panel transmissions) could not be supported within the unified TCI framework. Release 18 aims to support multiple (e.g., two or more) indicated (unified) TCI states. However, simultaneous multi-panel UL transmissions in multi-TRP systems still require further study to improve energy efficiency. Therefore, a new multi-panel uplink transmission solution is desired.

[0037] According to an embodiment of the present disclosure, a solution for TRP adaptation is provided, in which a terminal device receives transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for one or more TCI states. The terminal device performs simultaneous transmission or simultaneous reception based on the transmission configuration information. Thus, a new multi-panel uplink transmission solution that improves energy efficiency is provided.

[0038] The principles and embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, however, it should be noted that these embodiments are shown as exemplary embodiments and are not intended to limit the scope of the present invention in any way.

[0039] Reference is first made to FIG. 1 , which illustrates an exemplary communication system 100 in which embodiments of the present disclosure may be implemented. As shown in FIG. 1 , system 100 includes two network devices, such as network device 111 and network device 112. Network devices 111 and 112 may each have one respective group of antenna ports. In other words, network devices 111 and 112 may be associated with or function as two respective TRPs, and therefore may also be referred to as TRP 111 and TRP 112 in this disclosure. For clarity, TRP 111 may also be referred to as a first TRP, and TRP 112 may also be referred to as a second TRP.

[0040] Network devices 111 and 112 may each operate using different frequency bands in both the DL and UL. In a communication system, "UL" refers to a communication link in the direction from the terminal device to the network device, and "DL" refers to a communication link in the direction from the network device to the terminal device.

[0041] The system 100 also includes one or more terminal devices, such as terminal device 101. The terminal device 101 can connect, e.g., wirelessly, and communicate over the uplink and downlink with either or both of the network devices 111 and 112, depending on the terminal device's location within the cells of the network devices 111 and 112. The terminal device 101 can be configured to communicate with the network via one or more TRPs, e.g., two TRPs. The two TRPs can be located in the same cell (intra-cell TRP) or in different cells (inter-cell TRP).

[0042] It should be understood that the number of network devices and terminal devices in Figure 1 is for illustrative purposes only, without implying any limitation, and system 100 may include any suitable number of network devices and terminal devices adapted to implement embodiments of the present disclosure.

[0043] Communications in communication system 100 may be conducted according to any suitable communication protocol(s), including, but not limited to, third-generation (3G), fourth-generation (4G), and fifth-generation (5G) or later cellular communication protocols, wireless local network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, and / or other protocols now known or developed in the future. Furthermore, communications may 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 multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), and / or other technologies now known or developed in the future.

[0044] FIG. 2A illustrates an example of SRS transmission / reception from multiple UE panels. As an example, the SRS transmission of the panels and the spatial filters (e.g., beams) used can also be used for downlink (multi-panel) reception. FIG. 2B illustrates another example of SRS transmission or reception from multiple UE panels. The UE may be configured to perform transmission in SFN mode, which may include transmission over SRS resource(s) of SRS resource set(s) in an SFN manner using a unified TCI state framework. More details are described with reference to FIGS. 2A and 2B.

[0045] Note that in this example (or figure) references to SRS transmission may also refer to other transmissions of UL signals and / or channels, e.g., DMRS (Demodulation Reference Signal), PUCCH, PUSCH, etc. These signals / channels may be associated with TCI states.

[0046] As shown in FIGS. 2A and 2B, a UE may be indicated with N TCI states (N-DL TCI states, or joint UL and DL TCI states, or N-UL TCI states). Furthermore, a UE may be configured with two SRS resource sets, each of which may include one or more SRS resources. While FIGS. 2A and 2B illustrate two TCI states and two SRS resource sets as an example, the number of TCI states and SRS resource sets should not be construed as limiting the scope of this disclosure. An SRS resource set may be associated with a designated TCI state. A designated TCI code point may include two joint TCI states or two UL TCI states. A UE may be configured with two antenna groups, and the UE in the illustrated example has two panels. A TCI state may include (or be associated with / configured with) one or more reference signals (e.g., SSB / CSI-RS / tracking reference signals). If a TCI state index / codepoint is indicated, the UE assumes transmission of the associated UL / DL signal or channel according to the reference signal of the TCI state. In one embodiment, the TCI state includes a DL RS (e.g., CSI-RS), and if the UE is configured to transmit an SRS resource (or other UL signal / channel) according to the TCI state, it can use the DL RS as at least a spatial reference for transmission. Similarly, the same RS may be used for DL signal / channel reception (PDCCH / PDSCH). The TCI state may possibly include an UL RS. The UE has one or more indicated TCI states, each with its associated DL RS configuration.

[0047] As an example shown in FIG. 2A , in a configuration of two SRS resource sets (including one or more SRS resources, where one SRS resource may be an n-port SRS resource), a parameter may exist that defines whether the SRS resource set follows the first TCI state (TCI 1) of the indicated TCI code point or the second TCI state (TCI 2) of the indicated TCI code point. For example, SRS resource set 1 may be associated with TCI 1, and SRS resource set 2 may be associated with TCI 2. When SRS resource set 1 is triggered (e.g., periodic / non-periodic / semi-persistent transmission is performed), the UE transmits SRS on the associated SRS resources in set 1 according to TCI 1 (e.g., with a spatial relationship according to TCI 1). Also, when SRS resource set 2 is triggered, the UE transmits SRS via the associated SRS resources in set 2 according to TCI 2 (e.g., with a spatial relationship according to TCI 2). In any of the embodiments, the code points may be referred to as indexes.

[0048] FIG. 2B illustrates another example of an UL transmission mode, namely, SFN mode. To configure the UE for SFN mode, the UE may receive an instruction or configuration from the network. Upon receiving such an instruction (or configuration), the network may determine how to perform UL transmission in SFN mode. If the UE determines to transmit an SRS on associated SRS resources in SRS resource set 1 according to TCI 1 and TCI 2, the UE may transmit the SRS on associated SRS resources in SRS resource set 1 according to TCI 1 (e.g., with a spatial relationship according to TCI 1) and on associated SRS resources in SRS resource set 1 according to TCI 2 (e.g., with a spatial relationship according to TCI 2). In other words, when SRS resource set 1 is triggered for SFN transmission (or simultaneous transmission of the same signal across multiple TCI states), the UE transmits the SRS resources in the SRS resource set using TCI states 1 and 2. Alternatively, referring to FIG. 2A , the UE may be configured to transmit SRS resources in SRS resource set 2 according to two TCI states (TCI 1 and TCI 2). Whether the SRS resource set associated with TCI 1 or TCI 2 is used for SFN transmission is configured by the network and / or indicated using downlink signaling (DCI / MAC CE / RRC, etc.).

[0049] Reference is now made to Figure 3, which illustrates an example of an exemplary process 300 for dynamic TRP adaptation according to an embodiment of the present disclosure. For purposes of explanation, process 300 is described with reference to Figure 1. Network device 111 and terminal device 101 may be involved in process 300 for illustrative purposes.

[0050] In process 300, the network device 111 generates (302) a transmission configuration information indication. The transmission configuration information indicates simultaneous transmission or simultaneous reception on the same transmission resource according to two or more transmission configuration indicator (TCI) states. Next, the network device transmits (304) the transmission configuration information to the terminal device 101. Thus, the terminal device 101 receives (303) the transmission configuration information from the network device (306). From the transmission configuration information, the terminal device can know (303) that the network device indicates simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states used.

[0051] In some embodiments, the two or more TCI states include a first TCI state (TCI 1) associated with a first transmission resource and a second TCI state (TCI 2) associated with a second transmission resource. The first transmission resource and the second transmission resource may include, for example, an SRS transmission resource. One of the first transmission resource and the second transmission resource may be used as the same transmission resource for simultaneous transmission or reception. It should be noted that there may be X indicated TCI states. Although the present disclosure is described with the first and second (indicated) TCI states, the present disclosure is not limited thereto and any other number may be applicable.

[0052] 3, as illustrated to configure the SFN transmission mode of the UE, the UE may receive an instruction to transmit using the SFN scheme from the network equipment 111. In response to such an instruction by the network equipment 111, the UE may decide to transmit the SRS via SRS resource(s) in the first or second SRS resource set (SRS resource set 1 or SRS resource set 2) according to the two indicated TCI states.

[0053] In this embodiment, a UE may be configured with an SRS resource set (which may have one or more SRS resources). This resource set may be configured to be transmitted by the UE when the UE determines that it is configured (e.g., indicated) to perform SFN-type (e.g., concurrent / simultaneous) transmission. This resource within the SRS resource set may be transmitted. The SRS resource or SRS resource set may have a parameter indicating that the SRS resource(s) within the SRS resource set will be used for simultaneous UL transmission (e.g., SFN). Upon receiving the configuration for simultaneous transmission, the UE determines to use the configured SRS resource for transmission according to the configured TCI state. In some examples, an SRS resource set configured for simultaneous UL transmission may be associated with one or more TCI states (e.g., configured to follow one or more indicated TCI states) and transmitted when simultaneous UL transmission (e.g., SFN-type transmission) is configured. In some embodiments, an SRS resource set may be configured for simultaneous UL transmissions (e.g., SFN-type transmissions) without being associated with a (commanded) TCI state, where the association is determined at the time the transmission is performed. As an example, the TCI state used for a transmission is determined when the transmission is triggered / configured / commanded by the network.

[0054] In one embodiment, when the UE assumes that a first SRS resource set is indicated for SFN transmission, the UE assumes transmission via SRS resources (e.g., having n-port SRS resources) in the first SRS resource set in both the first and second indicated TCI states according to the configuration of the first SRS resource set, where the first and second TCI states may be indicated TCI states (e.g., using MAC CE activation and DCI beam indication).

[0055] In some embodiments, the SFN type transmission may be statically configured, for example, using RRC signaling. In some examples, the SFN type transmission may be an aperiodic / semi-persistent transmission, where the SFN transmission is triggered by downlink control information (e.g., DCI / MAC CE).

[0056] In some embodiments, the same transmission resource on which simultaneous transmission or reception is performed may be determined in a similar manner to any of the following alternative schemes.

[0057] As an example, the same transmission resources on which simultaneous transmission or reception is performed are determined based on an instruction from the network device 111. The instruction may indicate a TCI state or transmission resources for simultaneous transmission or reception. For example, the parameter of the TCI state may indicate whether the TCI state is a default TCI for SFN SRS transmission. The default TCI may refer to a designated TCI state (e.g., designated TCI 1 or TCI 2) used to determine transmission resources (e.g., SRS resource sets) for simultaneous transmission, such as SFN. In other words, if the TCI state is the default TCI state for SFN SRS transmission, an SRS resource set configured / associated to follow the TCI state beam instruction may be used for SFN SRS transmission. The default designated TCI state may be the designated TCI state associated with a CORESETPoolIndex value (e.g., 0 or 1).

[0058] As another example, the same transmission resource on which simultaneous transmission or reception is performed may be determined based on the activation order of the first TCI state and the second TCI state indicated by the network device 111. For example, if the indicated TCI states are at the same TCI codepoint, the activation order of the TCI states at the TCI codepoint defines the order (first and second). For example, if a TCI state is enabled first at the indicated TCI codepoint, the SRS resources configured to comply with that TCI state may be determined as the same transmission resource on which simultaneous transmission or reception is performed. In some embodiments, the indicated TCI state associated with the first CORESETPoolindex value (e.g., “0”) may be considered the first indicated TCI state. In some examples, the indicated TCI state associated with the second CORESETPoolindex value (e.g., “1”) may be considered the second indicated TCI state. In some examples, the indicated TCI state associated with the first CORESETPoolindex value==“0 / 1” may be considered the first indicated TCI state. In some examples, CORESETs may be grouped using a CORESET group index or the like, and CORESETs in a CORESET group are considered to be associated with the same indicated TCI state.

[0059] As yet another example, the same transmission resource on which simultaneous transmission or reception is performed may be determined based on the indication order of the first TCI state and the second TCI state indicated by the network device. For example, if the indicated TCI states are indicated at different TCI code points (i.e., each TCI code point includes a single joint TCI state or a single UL TCI state) and one of the indicated TCI states is indicated first in time, the SRS resource configured to follow the TCI state may be determined as the same transmission resource on which simultaneous transmission or reception is performed.

[0060] As a further example, the ta DCI for triggering the SFN mode may further include an explicit field indicating which TCI state at the indicated TCI codepoint is selected. In such a case, the SRS resource configured to comply with the selected TCI state may be determined as the same transmission resource on which simultaneous transmission or reception is performed.

[0061] As yet another example, the same transmission resources on which simultaneous transmission or reception is performed may be determined based on the priority of the first TCI state and the second TCI state. For example, if the first SRS resource set has priority over the second SRS resource set, the SRS resources in the first SRS resource set may be used to transmit SRS on overlapping symbols of other SRS resources, e.g., the SRS resource set associated with the second TCI state (while the SFN mode is enabled / configured).

[0062] In yet another embodiment, the UE may assume transmission of first and second SRS resource sets configured to comply with an indicated unified TCI state (e.g., first and second TCI states) such that when an SFN transmission is performed, the second SRS resource set is assumed not to comply with the indicated TCI state and the first SRS resource set is assumed to comply with both the first and second TCI states, as shown in FIG.

[0063] Thus, in the process 300, based on the transmission configuration information, the terminal device 101 can perform simultaneous transmission or simultaneous reception on the same transmission resource for two or more TCI states, respectively (308).

[0064] Through the above process, the present disclosure defines and enables the dynamic use of configured TCI states and multiple SRS resource sets for simultaneous transmission or independent scheduling (with independent SRS) on TCI states. The present solution also enables the network to configure the UE for simultaneous transmission (e.g., SFN mode). Therefore, the UE can perform SRS transmission from both UE TCI states (e.g., associated with one or more panels) in SFN mode / simultaneous uplink transmission.

[0065] The SFN mode in any of the embodiments may refer to simultaneous UL transmission or downlink reception, where one or more TCI states and / or antenna panels may be used to transmit the same information (SFN) or different information (e.g., SDM).

[0066] However, it should be understood that simultaneous SRS transmission is merely taken as an example to illustrate the solution as disclosed in this disclosure, and the present disclosure is not limited thereto. In some embodiments, the simultaneous transmission or reception may include, in addition to SRS, one or more transmissions or receptions of data on a physical uplink shared channel (PUSCH), data on a physical uplink control channel (PUCCH), downlink reference signals (DL RS), data on a physical downlink shared channel (PDSCH), DL / UL DMRS, or a physical downlink control channel (PDCCH). For example, the network device 111 may configure which channels to associate with an SFN transmission scheme, e.g., PUSCH (but not PUCCH).

[0067] In some embodiments, the UE may have an asymmetric number of ports per panel for SFN SRS transmission, and the following operations / logic are performed for at least one SFN SRS transmission. Figure 5 is an illustration of antenna panels with different capabilities, as described in more detail below with reference to Figure 5. In this manner, the configured SRS resources in an SRS resource set may have different port number configurations.

[0068] In any of these embodiments, an antenna panel or multiple antenna panels may be referred to as an antenna group. An antenna group may refer to an antenna panel or multiple antenna panels. Each antenna panel may include one or more antenna elements. An antenna group or multiple antenna groups may be associated with an index. In these embodiments, antenna panel and antenna group may sometimes be used interchangeably. The index associated with an antenna group or antenna panel may refer, for example, to a capability index or any index that associates the capability of an antenna panel or multiple antenna panels with up to the number of ports (e.g., SRS or other UL signal / channel resource ports) that can transmit on the panel or multiple panels. Ports or antenna ports may be defined such that the channel on which symbols on an antenna port are transmitted can be inferred from the channel on which other symbols on the same antenna port are transmitted. An SRS resource may have n ports (N=1, 2, 3, 4, etc.) and may refer to the transmission of n signals (or n ports) on the same transmission resource.

[0069] In some of these embodiments, capability information related to the antenna panel(s) / group(s) may be indicated to the network using uplink signaling, such as PUCCH / PUSCH, beam reports, MAC CE, UCI, RRC, etc. As an example, the terminal device may be configured to report a DL RS (or UL RS) and an associated capability index value. This index may indicate the capability of the antenna panel / group used for receiving the DL RS and / or used as a spatial relationship reference for UL transmissions using the DL RS (the DL RS used as a reference for UL transmissions).

[0070] In these embodiments, the terminal device 101 is further adapted to obtain the capabilities of one or more antenna groups, which may be associated with two or more TCI states, and the terminal device 101 is further adapted to determine one of the transmission resources associated with the TCI state corresponding to the smallest number of antenna ports of the antenna group.

[0071] For example, the terminal device 101 can determine whether (antenna) panels associated with the indicated TCI states have different capabilities regarding the maximum number of antenna ports available for transmission. Alternatively, the terminal device 101 can determine this (e.g., without explicitly determining the panel) based on at least one SRS resource set including at least one SRS resource and the number of ports associated with at least one resource of at least one indicated TCI state used for transmission / reception. In this embodiment, for example, AP1 / TCI1 n=1, and for example, AP2 / TCI2 m=2, where AP1 indicates antenna panel 1 and AP2 indicates antenna panel 2. AP and TCI can be used interchangeably (e.g., TCI states are associated with antenna panels / groups, but SRS resources are associated with TCI states). As shown in FIG. 5, the SRS resources of the first SRS resource set (associated with TCI 1) include n-port SRS resources, and the SRS resources of the second SRS resource set (associated with TCI 2) include m-port SRS resources.

[0072] In one embodiment, TCI states may be transmitted using panels having different panel capabilities (e.g., port numbers). In one example, a UE may be configured with SRS resources of SRS resource sets having different port numbers. The SRS resources may be further associated with TCI states. In a first example, the terminal device 101 may determine that a TCI state associated with a panel / SRS resource having a lower capability / setting in terms of ports is configured to be used for SFN-type transmissions. The terminal device 101 selects a TCI state associated with the lower capability (or the selected TCI state is associated with the lower capability), and the SRS resource set associated with the selected TCI state includes SRS resources used to transmit an SRS (e.g., an n-port SRS, e.g., n=1). The terminal device 101 may then transmit an SRS on the same SRS resources in the resource set such that the first TCI state associated with the lower port / transmission capability is used to enable n-port SRS transmission, while the terminal device 101 enables n-port transmission using a second TCI state (associated with a higher port number). Furthermore, the terminal device 101 does not transmit SRS on the SRS resources of the m-port associated with the second TCI state.

[0073] In option 2 of the second embodiment, the terminal device 101 determines which TCI state is associated with a panel having higher capabilities in terms of ports. Then, the terminal device 101 determines the m-port SRS resource associated with the higher capability (or the selected TCI state is associated with higher capabilities), e.g., the second TCI state. The terminal device 101 then determines not to transmit the SRS on the m-port SRS resource associated with the second TCI state, but to transmit the SRS using only n-port transmission of the m-port SRS resource for transmissions using the first and second TCI states. Thus, in this case, SRS transmission is performed based on the capabilities of the AP / TCI state with lower capabilities, but the SRS resource (m-port resource) is selected based on the state associated with the higher-capability antenna panel / or SRS resource set with a larger number of ports. In this case, n-port transmission is performed using one or more TCI states based on the m-port SRS resource in the SRS resource set.

[0074] In other words, the m-port SRS resources in the resource set of the more capable AP are reduced to n-port SRS resources and used for SFN transmission, i.e., SFN transmission is performed based on the less capable AP (in terms of number of ports) participating in the joint / SFN UL transmission, in which case the selected resource is still the SRS resource.

[0075] In other embodiments, for transmissions using both AP / TCIS states for SRS transmission in SFN mode, the number of SRS port resources in this embodiment may be limited to 1. In other embodiments, this information about the allowed number of SRS port resources is dynamically indicated (e.g., in a DCI) or pre-configured by RRC, or RRC in combination with MAC CE.

[0076] In a further example option, the terminal device 101 can select a transmission resource (e.g., an SRS) based on which TCI state is assumed as the default / lead TCI state or based on the TCI (and associated SRS) configured for SRS transmission. The selection of the TCI state may be based on which TCI state is considered to be the scheduling TCI state. For example, the TCI state may be explicitly indicated in a scheduling message such as a DCI in accordance with the reception of a scheduling / trigger / configuration / instruction. Therefore, the scheduling state in this specification refers to the TCI state after receiving a transmission configuration instruction (which may also be referred to as a scheduling instruction or trigger instruction). The selected TCI state (e.g., TCI 1) is used to determine at least one associated SRS resource in the SRS resource set and the number of configured ports. If an SRS resource set (e.g., a first SRS resource set) is configured with n-port SRS resources associated with the selected TCI state and one or more TCI states (e.g., TCI 2), the selected TCI state is used to determine at least one associated SRS resource in the SRS resource set and the number of configured ports. For example, TCI 2) is associated with an SRS resource (or antenna panel) with a higher number of ports (e.g., m ports), and the UE may decide to transmit up to the n-port SRS resource (first SRS resource) transmission using the TCI states (e.g., TCI 1 and TCI 2) configured for transmission. Alternatively, another TCI state may be selected (e.g., TCI 2).An SRS resource set (e.g., the second SRS resource set) is composed of m-port SRS resources, associated with a selected TCI state, and one or more TCI states (e.g., TCI 1) used for SFN-type transmission are associated with other SRS resources (or antenna panels) having a smaller number of ports (e.g., n ports). In this case, the UE can determine to transmit up to the n ports of the m-port SRS resource (the second SRS resource) using the TCI states (e.g., TCI 1 and TCI 2) configured for transmission. In other words, the selection of the number of ports used for SRS transmission in SFN transmission may be based on the configured ports of the SRS resource associated with the TCI state used for SFN transmission or the capabilities of the antenna panel used for transmission. As an example, when the m-port SRS resource in the SRS resource set is configured to be used for SFN-type transmission using two or more TCI states, the UE determines the transmission up to the number of ports used based on the (lower) transmission capabilities associated with the two or more TCI states. For example, if the TCI state associated with the lower transmission capability (or the associated antenna panel) can support n-port transmission (and n < m), the UE transmits up to the n ports of the m-port SRS resource.

[0077] By any of the above methods or options, the terminal device can determine on which transmission resources to perform the simultaneous transmission described in this specification.

[0078] Figure 4 shows the SDM mode or independent scheduling mode on the left side, and the SFE configuration of SRS showing the first and second TCI states on the right side. From this figure, it can be seen that before receiving the SFN configuration, the UE is expected to transmit SRS via the first SRS resource set for the first TCI state and the second SRS resource set for the second TCI state, but after receiving the SFN configuration, the UE may disable or deprioritize the second SRS resource set so that it transmits SRS only via the first SRS resource set, but according to the first and second TCI states, respectively.

[0079] In some embodiments, the terminal device 101 may be configured to replace the association between the second transmission resources and the second TCI state by associating the first transmission resources with the second TCI state. In one embodiment, the association between the second transmission resources and the second TCI state may be temporarily replaced. For example, the first SRS resource set replaces the second SRS resource set associated with the second TCI state, causing the UE to temporarily disable (or postpone or deprioritize transmissions from) the second SRS resource set while the SFN mode is enabled / configured. For example, since the UE assumes transmissions on the first and second SRS resource sets configured to comply with the indicated unified TCI states (first and second), when SFN transmissions are performed, the second SRS resource set is assumed not to comply with the indicated TCI state, and the first SRS resource set is assumed to comply with both the first and second TCI states.

[0080] In one example of this embodiment, an SRS transmission performed in accordance with the SFN aspects described herein is used as the transmission reference for the SFN UL transmission.

[0081] The transmission setting information in this disclosure can be implemented in many different ways, some examples of which are described below.

[0082] In one embodiment, the transmission setting information comprises: MAC CE for independently activating simultaneous transmission or simultaneous reception; MAC CE for enabling both transmission resources and simultaneous transmission or reception; DCI instructions for individually activating simultaneous transmission or simultaneous reception, Scheduling DCI indications indicating transmission scheduling and simultaneous transmission or simultaneous reception; It is transported by either

[0083] For example, a semi-persistent SRS activation message (e.g., MAC CE) can be used to activate SRS resources tagged / flagged / configured as an SFN-type resource set. The tagging can be within the SRS resource set or resources or provided as part of the activation message. If this SRS resource set is activated (and SFN transmission is indicated), the UE can assume the activated SRS resource transmission for the first and second TCI states.

[0084] In some embodiments, the terminal device 101 may be further configured to disable transmission resources other than the same transmission resource. For example, when transmitting on a first SRS resource set in the SFN scheme, the UE may disable a second SRS resource set transmission while the first SRS resource set is being used for transmission or reception in the SFN scheme. In some embodiments, the second SRS resource set transmission may be continued without being disabled. Thus, the terminal device 101 may be further configured to perform simultaneous transmission or reception on the same transmission resource while performing other transmission or reception on a transmission resource different from the same transmission resource. In other words, when the UE receives control information from the network for transmission on the first or second SRS resource set in the SFN scheme, i.e., according to the first and second indicated TCI states, it may be assumed that the other SRS resource set not transmitted in the SFN scheme is still transmitted in the associated TCI state (e.g., the second SRS resource set is transmitted according to the second TCI state).

[0085] In some embodiments, the transmission configuration information may indicate periodic simultaneous transmission or reception of the RS. In some embodiments, the transmission configuration information indicates aperiodic simultaneous transmission or reception for the RS. For periodic simultaneous transmission, the terminal device 101 may enable aperiodic triggering as described above. For aperiodic simultaneous transmission, several alternatives are provided for configuring the SRS for SFN transmission using the DCI SRS request indicator, as described in more detail with reference to FIG. 6.

[0086] In some embodiments, aperiodic simultaneous transmission or reception of RSs may be triggered by two pieces of configuration information. The two pieces of configuration information include two RS requests associated with the same resource set ID and the same SRS request trigger value. For example, as shown in FIG. 6, for one SRS request value indicated in a DCI message, the UE may configure, via RRC, two or more different SRS resource sets with the same aperiodic SRS resource set trigger parameter value. If the UE receives an SRS resource set configuration (RRC) with one or more IDs and the resource sets are configured to have the same SRS resource trigger value, the UE may consider the SRS transmission as an SFN transmission.

[0087] In some embodiments, aperiodic simultaneous transmission or reception of RSs may be triggered by a DCI indication having a single DCI code point value corresponding to two or more SRS resource sets. For example, if a UE receives an SRS request having a (single) DCI code point value associated with multiple SRS resource sets, the UE assumes that the SRS resources are transmitted in an SFN manner. If the UE is configured with a unified TCI state and is indicated with two TCI states (either joint TCI or UL TCI), it transmits the SRS on the triggered SRS resources using the indicated TCI state.

[0088] Optionally, if the SRS resource set (or multiple SRS resource sets) are not configured to follow a unified TCI state, the UE may assume that the indicated unified TCI state (e.g., the first and second indicated unified TCI states) is used for transmission. Alternatively, if one of the SRS resource sets associated with the SRS request DCI codepoint is configured to follow a unified TCI state, the UE may assume two spatial relationships for SFN transmission according to the RS indicated by the indicated unified TCI state.

[0089] In some embodiments, aperiodic simultaneous transmission or reception of RS may be triggered by a DCI indication including an SRS request value, in other words, the UE may be dynamically instructed for aperiodic SRS transmission whether the triggered SFN transmission follows the TCI state or not.

[0090] In some embodiments, the SRS request value may be associated with one RS resource or multiple RS resource sets including a flag, as shown in FIG. 7. The flag may indicate that aperiodic simultaneous transmission or reception is performed for the RS resource or RS resource set. For example, for a single SRS request value indicated in the DCI message, the UE may configure a single SRS resource set (ID N) with one or more SRS resources (ID Y). Optionally, the resource set configuration may include an SFN parameter / flag indicating whether the SRS resource is transmitted in an SFN manner. In another option, the SRS resource configuration may include an SFN parameter / flag indicating whether the SRS resource is transmitted in an SFN manner.

[0091] In some embodiments, as shown in FIG. 8, aperiodic simultaneous transmission or reception of RSs may be triggered by a DCI indication including a flag. The flag may indicate that aperiodic simultaneous transmission or reception is performed for an RS resource or an RS resource set. For example, if a UE receives a DCI indicating an SRS request value associated with an SRS resource set and the DCI includes an SFN flag, the UE may assume SFN transmission according to the first and second indicated unified TCI states. Otherwise, the UE may assume an SRS resource set according to the associated TCI state or according to the spatial relationship to which the UE is configured. In other words, the SFN flag in the DCI may overwrite or replace a previously configured spatial relationship for the SRS resources.

[0092] In any of these embodiments, it should be understood that the TCI conditions referred to herein are either joint TCI conditions or UL TCI conditions.

[0093] In some embodiments, when the SNF mode is configured, the UE can perform different transmission modes, including spatial division multiplexing (SDM) mode or independent scheduling mode. For example, when an SFN configuration is indicated / configured not to be valid for uplink transmission, the UE can operate in the SDM mode or the independent scheduling mode.

[0094] In other words, this solution further provides for switching between SFN mode and SDM mode / independent scheduling mode. In some embodiments, the switching is performed by resource status setting information.

[0095] In this embodiment, the UE is configured with two SRS resource sets and an associated SRS trigger state (first state), where the two SRS resource sets share the same SRS resources, where one of the SRS resource sets is configured to comply with a first TCI state and the other SRS resource set is configured to comply with a second TCI state, and both SRS resource sets are configured to include the same SRS resources.

[0096] Furthermore, the UE may also be configured with another SRS trigger state (second state) associated with the two resource sets, where the two SRS resource sets have unique SRS resources (i.e., do not share the same SRS resources). In this case, one of the SRS resource sets is configured to comply with the first indicated TCI state, and the other SRS resource set is configured to comply with the second indicated TCI state. The SRS resources in each set may have different numbers of antenna ports, reflecting, for example, the capabilities of the panels. For example, one panel may have one antenna port and the other panel may have two antenna ports. The SRS resources in different sets may have the same configured radio resources.

[0097] In some embodiments, the transmission configuration information may include a first resource state indicated in resource state configuration information, and the first resource state configuration information may configure the terminal device in a first resource state for two or more transmission resource sets, and the first resource state may indicate that the two or more transmission resource sets share the same transmission resource.

[0098] For example, in a first resource state indicated by the resource state setting information, the terminal device 101 may trigger simultaneous transmission as described above for SRS and PUSCH. In this case, a first trigger state (ID) may be indicated in the trigger DCI of the PDCCH to trigger SFN-based SRS transmission (or multiple SRS transmissions if there are multiple resources in the set). The SRI indicator in the scheduling DCI may indicate the reference SRS resource used for the SFN-based PUSCH together with the TPMI and RI indicator (codebook-based PUSCH). The UE may determine a transmit spatial filter (transmit beam) for the indicated TCI state associated with an SRS resource set that includes the reference SRS resource used for PUSCH transmission from a different panel.

[0099] In some embodiments, the resource state setting information may include second resource state setting information, and the second resource state setting information may configure the terminal device in a second resource state for two or more transmission resource sets. The terminal device 101 may further perform transmission or reception in a transmission mode different from the simultaneous transmission or simultaneous reception. In some embodiments, transmission or reception in a different transmission mode may include transmission or reception in one of a spatial division multiplexing (SDM) mode or an independent scheduling mode.

[0100] For example, the second resource state setting information may enable the terminal device 101 to trigger SDM transmission(s) of SRS and PUSCH. In this case, a second trigger state (ID) may be indicated in the trigger DCI of the PDCCH to trigger SDM-based SRS transmission (or multiple SRS transmissions if the set has multiple resources). The SRI indicator in the scheduling DCI may indicate the reference SRS resource used for the SFN-based PUSCH together with the TPMI and RI indicators (for codebook-based PUSCH). The UE determines the transmit spatial filter (transmit / transmit beam) to the indicated TCI state associated with the SRS resource set that includes the reference SRS resource used for the PUSCH transmission(s) (from different panels).

[0101] The DCI may also have explicit information regarding whether one or both of the SRS resource indicator (SRI) fields (if configured to be present) apply. The PUSCH transmission may be a single-panel transmission if only one applies, while the PUSCH transmission may be performed in SDM mode from two panels if both apply. According to these embodiments, dynamic switching between SDM mode and SFN mode for uplink multi-(panel) transmission may be realized.

[0102] 9 shows a flowchart of an example method 900 implemented in a terminal device in accordance with some embodiments of the present disclosure. For illustrative purposes, the method 900 will be described from the perspective of the terminal device 101 with reference to FIG.

[0103] In block 910, the terminal device 101 receives transmission configuration information, which instructs simultaneous transmission or reception on the same transmission resource for two or more TCI states. In block 920, the terminal device 101 performs simultaneous transmission or reception on the same transmission resource for the two or more TCI states based on the transmission configuration information.

[0104] In some embodiments, the two or more TCI states may include a first TCI state associated with a first transmission resource and a second TCI state associated with a second transmission resource, and one of the first transmission resource and the second transmission resource is used as the same transmission resource on which simultaneous transmission or simultaneous reception is performed.

[0105] In some embodiments, the same transmission resource on which simultaneous transmission or reception is performed is determined based on any of an instruction from the network equipment indicating a TCI state or transmission resource for simultaneous transmission or reception, an activation order of the first TCI state and the second TCI state indicated by the network equipment, an indication order of the first TCI state and the second TCI state indicated by the network equipment, or a priority of the first TCI state and the second TCI state.

[0106] In some embodiments, the terminal device 101 may further be adapted to perform replacing the association of the second transmission resource with the second TCI state by the association of the first transmission resource with the second TCI state.

[0107] In some embodiments, the association of the second transmission resource with the second TCI state may be permuted in time.

[0108] In some embodiments, the terminal device 101 may further be adapted to disable transmission resources other than the same transmission resource.

[0109] In some embodiments, the transmission configuration information is carried by any of a Medium Access Control Element (MAC CE) for separately enabling simultaneous transmission or reception, a MAC CE for enabling both transmission resources and simultaneous transmission or reception, a DCI indication for separately enabling simultaneous transmission or reception, or a scheduling DCI indication for instructing transmission scheduling and simultaneous transmission or reception.

[0110] In some embodiments, the terminal device 101 may be further configured to obtain the capabilities of one or more antenna groups, where the one or more antenna groups are associated with two or more TCI states, and to determine one of the transmission resources associated with the TCI state, where the TCI state is associated with a minimum number of antenna ports of the antenna group.

[0111] In some embodiments, the transmission configuration information may indicate periodic or aperiodic simultaneous transmission or reception of the RS.

[0112] In some embodiments, aperiodic simultaneous transmission or reception of RSs is triggered by either two configuration information including two RS requests associated with the same reference resource set ID and the same SRS request trigger value, or a DCI indication having one DCI code point value corresponding to two or more SRS resource sets, or a DCI indication including an SRS request value, where the SRS request value is associated with an RS resource or an RS resource set and includes a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set, or a DCI indication including a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set.

[0113] In some embodiments, the transmission configuration information may include first resource state configuration information, which configures the terminal device in a first resource state with respect to two or more transmission resource sets.

[0114] In some embodiments, the first resource state may indicate that two or more transmission resource sets share the same transmission resource.

[0115] In some embodiments, the terminal device 101 may further be configured to obtain second resource state setting information, the second resource state setting information configuring the terminal device in a second resource state relating to two or more transmission resource sets, and to perform transmission or reception in a transmission mode different from simultaneous transmission or simultaneous reception.

[0116] In some embodiments, transmitting or receiving in different transmission modes may include transmitting or receiving in one of a spatial division multiplexing (SDM) mode or an independent scheduling mode.

[0117] In some embodiments, the simultaneous transmission or reception may include transmission or reception of one or more of a sounding reference signal (SRS), data on a physical uplink shared channel (PUSCH), data on a physical uplink control channel (PUCCH), a downlink reference signal (DL RS), data on a physical downlink shared channel (PDSCH), a UL / DL DMRS (demodulation reference signal), or data on a physical downlink control channel (PDCCH).

[0118] 10 shows a flowchart of an example method 1000 implemented in a network device in accordance with some embodiments of the present disclosure. For purposes of explanation, the method 1000 will be described from the perspective of the network device 111 with reference to FIG.

[0119] In block 1010, the network device 111 generates transmission configuration information, which instructs simultaneous transmission or reception on the same transmission resource for two or more TCI states. In block 1020, the network device 111 transmits the transmission configuration information to the terminal device 101.

[0120] In some embodiments, the two or more TCI states may include a first TCI state associated with a first transmission resource and a second TCI state associated with a second transmission resource, and one of the first transmission resource and the second transmission resource is used as the same transmission resource on which simultaneous transmission or simultaneous reception is performed.

[0121] In some embodiments, the network device 111 may be further configured to transmit to the terminal device 101 a first instruction indicating TCI states or transmission resources for simultaneous transmission or simultaneous reception, where the same transmission resources on which the simultaneous transmission or simultaneous reception is performed are determined based on the first instruction, or to transmit to the terminal device 101 a second instruction indicating the priority of the transmission resources corresponding to the first TCI state and the second TCI state.

[0122] In some embodiments, the transmission configuration information is carried by any of a Medium Access Control Element (MAC CE) for separately enabling simultaneous transmission or reception, a MAC CE for enabling both transmission resources and simultaneous transmission or reception, a DCI indication for separately enabling simultaneous transmission or reception, or a scheduling DCI indication for instructing transmission scheduling and simultaneous transmission or reception.

[0123] In some embodiments, the transmission configuration information may indicate periodic or aperiodic simultaneous transmission or reception of the RS.

[0124] In some embodiments, aperiodic simultaneous transmission or reception of RSs is triggered by either two configuration information including two RS requests associated with the same reference resource set ID and the same SRS request trigger value, or a DCI indication having one DCI code point value corresponding to two or more SRS resource sets, or a DCI indication including an SRS request value, where the SRS request value is associated with an RS resource or an RS resource set and includes a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set, or a DCI indication including a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set.

[0125] In some embodiments, the transmission configuration information may include first resource state configuration information, where the first resource state configuration information configures the terminal device in a first resource state with respect to two or more transmission resource sets.

[0126] In some embodiments, the first resource state may indicate that two or more transmission resource sets share the same transmission resource.

[0127] In some embodiments, the network device 111 may further cause the terminal device to provide second resource state setting information, which is then used to configure the terminal device in a second resource state for two or more transmission resource sets such that the terminal device performs transmission or reception in a transmission mode different from simultaneous transmission or simultaneous reception.

[0128] In some embodiments, the second resource state may indicate that two or more transmission resource sets do not share the same transmission resource.

[0129] In some embodiments, transmitting or receiving in different transmission modes may include transmitting or receiving in either an SDM mode or an independent scheduling mode.

[0130] In some embodiments, the simultaneous transmission or reception includes transmitting or receiving one or more of a sounding reference signal (SRS), data on a physical uplink shared channel (PUSCH), data on a physical uplink control channel (PUCCH), a downlink reference signal (DL RS), data on a physical downlink shared channel (PDSCH), or data on a physical downlink control channel (PDCCH).

[0131] In some embodiments, an apparatus capable of performing any of the methods 900 (e.g., terminal device 101) may comprise means for performing each step of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuit or a software module.

[0132] In some embodiments, the apparatus may further comprise means for performing steps in some embodiments of method 900. In some embodiments, the means may comprise at least one processor and at least one memory containing computer program code, the at least one memory and the computer program code configured, together with the at least one processor, to cause the apparatus to perform the above.

[0133] In some embodiments, an apparatus capable of performing any of the methods 1000 (e.g., network device 111) may comprise means for performing each step of the method 1000. The means may be implemented in any suitable form. For example, the means may be implemented in a circuit or a software module.

[0134] In some embodiments, the apparatus may further comprise means for performing steps in some embodiments of method 1000. In some embodiments, the means comprises at least one processor and at least one memory containing computer program code, the at least one memory and the computer program code configured, together with the at least one processor, to cause the apparatus to perform the steps.

[0135] 11 is a simplified block diagram of a device 1100 suitable for implementing embodiments of the present disclosure. The device 1100 may be provided to implement a communication device such as the terminal equipment 101, the terminal equipment 121, the network equipment 111, or the network equipment 112 shown in FIG. 1. As shown, the device 1100 includes one or more processors 1110, one or more memories 1120 connected to the processors 1110, and one or more communication modules 1140 connected to the processors 1110.

[0136] The communication module 1140 is for two-way communication. The communication module 1140 has at least one antenna to facilitate communication. The communication interface may represent any interface necessary for communication with other network elements.

[0137] The communications module 1140 may include, for example, one or more transceivers. The one or more transceivers may be coupled to one or more antennas for wirelessly transmitting and receiving communication signals. The one or more transceivers enable the communications device to communicate with other devices, which may be wired and / or wireless. The transceivers may support one or more wireless technologies. For example, the one or more transceivers may include a cellular subsystem, a WLAN subsystem, and / or a Bluetooth subsystem. In some embodiments, the one or more transceivers may include a processor, a controller, a radio, sockets, plugs, buffers, and similar circuits / devices used to connect to and communicate over a network.

[0138] The processor 1110 may be of any type suitable for a local technology network and may include, by way of non-limiting example, one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. The device 1100 may have multiple processors, such as application-specific integrated circuit chips that are time-slaved to a clock that synchronizes a main processor.

[0139] The memory 1120 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memory include, but are not limited to, read-only memory (ROM) 1124, electrically programmable read-only memory (EPROM), flash memory, hard disks, compact disks (CDs), digital video disks (DVDs), and other magnetic and / or optical storage devices. Examples of volatile memory include, but are not limited to, random access memory (RAM) 1122 and other volatile memories that do not persist through power-down periods.

[0140] The computer program 1130 includes computer-executable instructions that are executed by the associated processor 1110. The program 1130 may be stored in the ROM 1124. The processor 1110 can load the program 1130 into the RAM 1122 to perform any suitable operations and processes.

[0141] 2 to 10, the device 1100 may be implemented by a program 1130 that enables the device 1100 to execute any process of the present disclosure. The embodiment of the present disclosure may also be implemented by hardware or a combination of software and hardware.

[0142] In some embodiments, the program 1130 may be tangibly contained in a computer-readable medium, which may be included in the device 1100 (such as in memory 1120) or other storage accessible by the apparatus 600. The computing device 1100 may load the program 1130 from the computer-readable medium into RAM 1122 for execution. The computer-readable medium may include any type of tangible non-volatile storage device, such as a ROM, an EPROM, a flash memory, a hard disk, a CD, a DVD, etc. Figure 12 shows an example of a computer-readable medium 1200 in the form of a CD or DVD, on which the program 1130 is stored.

[0143] In general, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof. One aspect may be implemented in hardware, while another aspect may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described using block diagrams, flowcharts, or some other graphical representations, it should be understood that the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, special purpose circuits or logic, general purpose hardware or a controller or other computing device, or some combination thereof, in non-limiting examples.

[0144] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, that execute on a target real or virtual processor to perform the method 900 or 1000 described above with reference to FIGS. 9-10. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split among program modules as desired in various embodiments. The machine-executable instructions of the program modules may be executed in local or distributed devices. In distributed devices, the program modules may be located in both local and remote storage media.

[0145] Program code for implementing the methods of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, and when executed by the processor or controller, cause the specific functions / operations shown in the flowcharts and / or block diagrams to be performed. The program code can run entirely on the machine, partially on the machine, as a standalone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0146] In the context of the present disclosure, computer program code or associated data may be carried by any suitable carrier to enable a device, computing device, or processor to perform the various processes and operations as described above. Examples of carriers include signals, computer-readable media, etc.

[0147] The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. Computer-readable media include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More specific examples of computer-readable storage media include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. The term "non-transitory" as used herein refers to the medium itself (i.e., tangible, not a signal), as opposed to a limitation regarding the permanence of the data storage (e.g., RAM versus ROM).

[0148] Furthermore, although operations are depicted in a particular order, this should not be understood as requiring such operations to be performed in the particular order illustrated, or sequentially, or to perform all of the illustrated operations, to achieve desirable results. In certain situations, multitasking and parallel processing may be preferred. Similarly, while several specific implementation details are included in the above description, these should not be construed as limiting the scope of the disclosure, but rather as descriptions of features that may be unique to particular embodiments. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

[0149] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it is to be understood that the present disclosure, as defined by the appended claims, is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A terminal device, one or more processors; one or more transceivers communicatively connected to the one or more processors, wherein the one or more processors communicate with the terminal device: receiving, from a network device, transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information; A terminal device configured to cause the

2. the two or more TCI states include a first TCI state associated with a first transmission resource and a second TCI state associated with a second transmission resource; one of the first transmission resource and the second transmission resource is used as the same transmission resource on which the simultaneous transmission or simultaneous reception is performed; The terminal device according to claim 1 .

3. The same transmission resource on which the simultaneous transmission or reception is performed is an indication from said network device indicating a TCI state or transmission resource for simultaneous transmission or reception; an activation order of the first TCI state and the second TCI state indicated by the network device; an indication sequence of the first TCI state and the second TCI state indicated by the network device; a priority of the first TCI state and the second TCI state; The terminal device according to claim 1 , wherein the determination is based on any one of the following:

4. The terminal device further replacing the association between the second transmission resource and the second TCI state with an association between the first transmission resource and the second TCI state; 4. The terminal device according to claim 2 or 3, wherein:

5. The terminal device of claim 4 , wherein the association between the second transmission resource and the second TCI state is temporarily replaced.

6. The terminal device further Disable any sending resource other than the same sending resource, 6. The terminal device according to claim 1, wherein the terminal device is configured to:

7. The transmission setting information is a Medium Access Control Element (MAC CE) for individually enabling said simultaneous transmission or simultaneous reception; a MAC CE for enabling both transmission resources and simultaneous transmission or reception; a Downlink Control Information (DCI) indication for individually enabling the simultaneous transmission or reception; a scheduling DCI indication for instructing transmission scheduling and simultaneous transmission or reception; 7. A terminal device according to claim 1, carried by one of the following:

8. The terminal device further obtaining capabilities of one or more antenna groups, the one or more antenna groups being associated with the two or more TCI states; determining one of the transmission resources associated with a TCI state, the TCI state being associated with a minimum number of antenna ports in an antenna group; 8. A terminal device according to any one of claims 1 to 7, adapted to execute the following:

9. The terminal device according to claim 1 , wherein the transmission configuration information indicates periodic or aperiodic simultaneous transmission or reception of reference signals (RS).

10. The aperiodic simultaneous transmission or reception of RSs is Two configuration information including two RS requests associated with the same reference resource set ID and the same SRS request trigger value, or a DCI indication having one DCI codepoint value corresponding to two or more SRS resource sets; or a DCI indication including an SRS request value, the SRS request value being associated with an RS resource or an RS resource set including a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set; or a DCI indication including a flag indicating that the aperiodic simultaneous transmission or reception is performed on the RS resource or the RS resource set; The terminal device according to claim 9, wherein the terminal device is triggered by:

11. 11. The terminal device according to claim 1, wherein the transmission setting information includes first resource state setting information, and the first resource state setting information sets a first resource state for two or more transmission resource sets in the terminal device.

12. The terminal device of claim 11 , wherein the first resource state indicates that the two or more transmission resource sets share the same transmission resource.

13. The terminal device further acquiring second resource state setting information, the second resource state setting information setting the terminal device to a second resource state with respect to two or more transmission resource sets; performing transmission or reception in a transmission mode different from the simultaneous transmission or simultaneous reception; 13. A terminal device according to claim 11 or 12, adapted to execute:

14. The terminal device of claim 13 , wherein the transmitting or receiving in the different transmission modes includes transmitting or receiving in either a spatial division multiplexing (SDM) mode or an independent scheduling mode.

15. The simultaneous transmission or simultaneous reception is Sounding Reference Signal (SRS), Data on the Physical Uplink Shared Channel (PUSCH), Data on the Physical Uplink Control Channel (PUCCH); Downlink Reference Signal (DL RS); Data on the Physical Downlink Shared Channel (PDSCH), or Data on the Physical Downlink Control Channel (PDCCH); 15. A terminal device according to claim 1, comprising transmitting or receiving one or more of:

16. A network device, one or more processors; one or more transceivers communicatively coupled to the one or more processors, wherein the one or more processors communicate with the network device: generating transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; transmitting the transmission setting information to a terminal device; A network device configured to:

17. the two or more TCI states include a first TCI state associated with a first transmission resource and a second TCI state associated with a second transmission resource; one of the first transmission resource and the second transmission resource is used as the same transmission resource on which the simultaneous transmission or simultaneous reception is performed; The network device according to claim 16.

18. The network device further comprises: sending a first indication to the terminal device indicating a TCI state or transmission resources for simultaneous transmission or reception, the same transmission resources on which the simultaneous transmission or reception is performed being determined based on the first indication; or transmitting to the terminal device a second indication indicating priorities of the transmission resources corresponding to the first TCI state and the second TCI state; 17. The network device of claim 16, adapted to execute:

19. The transmission setting information is a Medium Access Control Element (MAC CE) for individually enabling said simultaneous transmission or simultaneous reception; a MAC CE for enabling both transmission resources and simultaneous transmission or reception; a Downlink Control Information (DCI) indication for individually enabling the simultaneous transmission or reception; a scheduling DCI indication indicating transmission scheduling and simultaneous transmission or simultaneous reception; 19. The network device according to claim 16, wherein the network device is carried by any of the following:

20. The network device according to any one of claims 16 to 19, wherein the transmission setting information indicates periodic or aperiodic simultaneous transmission or reception of reference signals (RS).

21. The aperiodic simultaneous transmission or reception of RSs is Two configuration information including two RS requests associated with the same reference resource set ID and the same SRS request trigger value, or a DCI indication having one DCI codepoint value corresponding to two or more SRS resource sets; or a DCI indication including an SRS request value, the SRS request value being associated with an RS resource or an RS resource set including a flag indicating that aperiodic simultaneous transmission or reception is to be performed for the RS resource or the RS resource set; or an indication including a flag indicating that the periodic simultaneous transmission or reception is performed for the RS resource or the RS resource set; The network device of claim 20, wherein the network device is triggered by

22. 22. The network device according to claim 16, wherein the transmission setting information includes first resource state setting information, the first resource state setting information setting the terminal device to a first resource state for two or more transmission resource sets.

23. 23. The network equipment of claim 22, wherein the first resource state indicates that the two or more transmission resource sets share a same transmission resource.

24. The network device further comprises: providing second resource status setting information to the terminal device; It was like this, The second resource state setting information is used to set the terminal device to a second resource state regarding two or more transmission resource sets so that the terminal device performs transmission or reception in a transmission mode different from the simultaneous transmission or simultaneous reception.

24. The network device according to claim 22 or 23.

25. 25. The network equipment of claim 24, wherein the second resource state indicates that the two or more transmission resource sets do not share the same transmission resource.

26. 26. The network equipment of claim 24 or 25, wherein the transmitting or receiving in the different transmission modes comprises transmitting or receiving in either a spatial division multiplexing (SDM) mode or an independent scheduling mode.

27. Simultaneous transmission or reception is Sounding Reference Signal (SRS), Data on the Physical Uplink Shared Channel (PUSCH), Data on the Physical Uplink Control Channel (PUCCH); Downlink Reference Signal (DL RS); Data on the Physical Downlink Shared Channel (PDSCH), or Data on the Physical Downlink Control Channel (PDCCH); 27. A network device according to claim 16, comprising transmitting or receiving one or more of:

28. A method in a terminal device, comprising: receiving, from a network device, transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information; A method comprising:

29. 1. A method in a network device, comprising: generating transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; transmitting the transmission setting information to a terminal device; A method comprising:

30. A terminal device, comprising: means for receiving transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; means for performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information; An apparatus comprising:

31. A network equipment device, means for generating transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; means for transmitting the transmission setting information; An apparatus comprising:

32. A terminal device, at least one processor; at least one memory containing computer program code, said at least one memory and said computer program code being transmitted by said at least one processor to said terminal device; receiving transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; performing simultaneous transmission or simultaneous reception on the same transmission resource for the two or more TCI states based on the transmission configuration information; at least one memory configured to execute A terminal device comprising:

33. A network device, at least one processor; at least one memory containing computer program code, said at least one memory and said computer program code being transmitted by said at least one processor to said network device; generating transmission configuration information, the transmission configuration information indicating simultaneous transmission or simultaneous reception on the same transmission resource for two or more transmission configuration indicator (TCI) states; transmitting the transmission setting information to a terminal device; at least one memory configured to execute A network device comprising:

34. A non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method of claim 28 or 29.

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