Simultaneous or contemporaneous spatial domain multiplexed physical uplink shared channel transmission using single downlink control information and two sounding reference signal resource sets

Abstract

A user equipment (UE), the user equipment (UE) comprising: a transceiver associated with a first antenna panel and a second antenna panel of at least two antenna panels; and a processor configured to receive a single downlink control information (DCI) for a codebook-based simultaneous or simultaneous physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM). The processor is configured to receive a configuration of a first sounding reference signal resource set (SRS-ResourceSet) and a second SRS-ResourceSet of at least two SRS-ResourceSet sets (SRS-ResourceSet), and the processor is configured to receive a configuration of the first SRS-ResourceSet and the second SRS-ResourceSet. The first SRS-ReSource Set is mapped to the first antenna panel, and the second SRS-ReSource Set is mapped to the second antenna panel. The processor is configured to simultaneously or simultaneously transmit a first sounding reference signal (SRS) using the first SRS-ResourceSet and the first antenna panel, and to transmit a second SRS using the second SRS-ResourceSet and the second antenna panel, for codebook-based simultaneous or simultaneous PUSCH transmission with SDM.

Description

Technical Field

[0001] This application generally relates to wireless communication systems, including methods and systems for simultaneous or contemporaneous Physical Uplink Shared Channel (PUSCH) transmission using Spatial Division Multiplexing (SDM). Background Art

[0002] Wireless mobile communication technologies use various standards and protocols to transmit data between a base station and a wireless communication device. Wireless communication system standards and protocols can include, for example, the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) (e.g., 4G), 3GPP New Radio (NR) (e.g., 5G), and the IEEE 802.11 standards for Wireless Local Area Networks (WLAN) (commonly referred to within the industry as ).

[0003] As envisioned by 3GPP, different wireless communication system standards and protocols can use various Radio Access Networks (RANs) to communicate between a base station of the RAN (which can sometimes also be referred to as a RAN node, network node, or simply a node) and a wireless communication device called a User Equipment (UE). 3GPP RAN can include, for example, Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE) RAN (GERAN), Universal Terrestrial Radio Access Network (UTRAN), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), and / or Next Generation Radio Access Network (NG-RAN).

[0004] Each RAN can use one or more Radio Access Technologies (RATs) to perform communication between the base station and the UE. For example, GERAN implements GSM and / or EDGE RAT, UTRAN implements Universal Mobile Telecommunications System (UMTS) RAT or other 3GPP RAT, E-UTRAN implements LTE RAT (which is sometimes simply referred to as LTE), and NG-RAN implements NR RAT (which is sometimes referred to herein as 5G RAT, 5G NR RAT, or simply NR). In some deployments, E-UTRAN can also implement NR RAT. In some deployments, NG-RAN can also implement LTE RAT.

[0005] The base station used by the RAN can correspond to that RAN. An example of an E-UTRAN base station is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (commonly also denoted as an Evolved Node B, Enhanced Node B, eNodeB, or eNB). An example of an NG-RAN base station is a Next Generation Node B (sometimes also referred to as a g Node B or gNB).

[0006] The RAN provides communication services with external entities through its connection to the core network (CN). For example, E-UTRAN can utilize the evolved packet core (EPC), while NG-RAN can utilize the 5G core network (5GC). Description of the Drawings

[0007] To easily identify the discussion of any specific element or action, one or more of the most significant digits in the reference numerals refer to the drawing number in which the element was first introduced.

[0008] Figure 1 An example wireless communication system according to the embodiments described herein is shown.

[0009] Figure 2 An example of physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM) according to the embodiments described herein is shown.

[0010] Figure 3 An example mapping of two SRS resource indicator fields in downlink control information (DCI) to an SRS-Resource in an SRS-ResourceSet among multiple SRS-ResourceSets and an antenna panel among multiple antenna panels according to the embodiments described herein is shown.

[0011] Figure 4 Another example mapping of a single SRS resource indicator field in downlink control information (DCI) to an SRS-Resource in an SRS-ResourceSet among multiple SRS-ResourceSets and an antenna panel among multiple antenna panels according to the embodiments described herein is shown.

[0012] Figure 5 An example mapping of a transmit precoding matrix indicator (TPMI) and multiple sounding reference signal (SRS) ports of multiple SRS-ResourceSets according to the embodiments described herein is shown.

[0013] Figure 6 An example method of wireless communication by a UE according to the embodiments described herein, which can be used for codebook-based simultaneous or concurrent PUSCH transmission using SDM, is shown.

[0014] Figure 7 An example method of wireless communication by a UE according to the embodiments described herein, which can be used for non-codebook-based simultaneous or concurrent PUSCH transmission using SDM, is shown.

[0015] Figure 8Illustrates an example method for wireless communication by a network device according to an embodiment described herein, which can be used to configure a UE for codebook-based or non-codebook-based simultaneous or concurrent PUSCH transmission using SDM.

[0016] Figure 9 Illustrates an example architecture of a wireless communication system according to an embodiment disclosed herein.

[0017] Figure 10 Illustrates a system for performing signaling between a wireless device and a network device according to an embodiment disclosed herein. Detailed Description

[0018] The various embodiments described in this disclosure correspond to simultaneous or concurrent physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM). A single downlink control information (DCI) is used to schedule simultaneous or concurrent PUSCH transmission using SDM. In addition, PUSCH transmission using SDM can be codebook-based and / or non-codebook-based PUSCH transmission. In some embodiments, two sounding reference signal resource sets (SRS-ResourceSet) for codebook-based or non-codebook-based PUSCH transmission can be used for simultaneous or concurrent PUSCH transmission based on a single DCI using SDM.

[0019] In 5G or 5G new radio (5G NR), uplink (UL) or PUSCH transmission using a multi-input multi-output (MIMO) antenna panel can be performed according to one or both of two MIMO operation modes (codebook-based and non-codebook-based), and up to four layers can be supported. For codebook-based transmission of PUSCH (or UL), the SRS-ResourceSet usage can be set to "codebook", and the UE can accordingly use multiple ports to transmit SRS resources, and network devices in the network (e.g., RAN and / or CN) can configure the UE for a specific transmit precoding matrix indicator (TPMI) and rank indicator (RI) for PUSCH transmission. Similarly, for non-codebook-based transmission of PUSCH (or UL), the SRS-ResourceSet usage can be set to "non-codebook", and the UE can accordingly use a single port to transmit multiple SRS resources, and the network device can configure the UE for a specific TPMI and RI for PUSCH transmission via the selection of one or more transmitted SRS-Resources. In addition, various embodiments for codebook-based PUSCH transmission as described in this disclosure can correspond to a coherent mode, a partial coherent mode, and / or an incoherent mode depending on UE capabilities.

[0020] Reference will now be made specifically to representative embodiments / aspects shown in the accompanying drawings. The following description is not intended to limit the embodiments to one preferred embodiment. Instead, it is intended to cover alternative forms, combinations, modifications, and equivalents that may be included within the spirit and scope of the described embodiments as defined by the appended claims.

[0021] Figure 1 An example wireless communication system in accordance with the embodiments described herein is shown. As Figure 1 shown, the wireless communication system 100 may include a network device 102 and a user equipment (UE) 104. The UE 104 may be communicatively coupled with the network device 102 to transmit data in the uplink (UL) direction. For example, the UE 104 may perform PUSCH transmissions via the first antenna panel 106a and the second antenna panel 106b of the UE 104, shown as PUSCH 1 108a and PUSCH 2 108b. The UE 104 may also receive data in the downlink (DL) direction using the first antenna panel 106a and the second antenna panel 106b.

[0022] In some embodiments, the network device 102 may be an eNodeB (eNB), gNodeB (gNB), or access point (AP) in a RAN, and may support one or more radio access technologies, such as 4G, 5G New Radio (5G NR or 5G), 6G, and so on. The UE 104 may be a telephone, smartphone, tablet, smartwatch, Internet of Things (IoT), vehicle, etc. The reference to user equipment (UE) in this disclosure is provided for illustrative purposes only. Example embodiments may be used with any electronic component that can establish a connection with a network and is configured with hardware, software, and / or firmware for information and data exchange with the network. Thus, the UE described herein is used to represent any suitable electronic device.

[0023] Figure 2An example of physical uplink shared channel (PUSCH) communication using spatial domain multiplexing (SDM) according to an embodiment described herein is shown. As shown in graph 200, simultaneous or concurrent PUSCH (or UL) transmissions using multiple antenna panels 206a and 206b of UE 204 can be performed using frequency division multiplexing (FDM) or SDM. In FDM, PUSCH 1 208a and PUSCH 2 208b can each correspond to different frequency ranges or different frequency bands, which is shown along the Y-axis representing the frequency range in graph 200. PUSCH 1 208a and PUSCH 2 208b can occur simultaneously or concurrently along the X-axis representing time as shown in the figure. In SDM, PUSCH 1 206a and PUSCH 2 206b can use the same frequency range or frequency band during the same time period, in other words, use the same frequency range or frequency band simultaneously or concurrently. In SDM, simultaneous or concurrent PUSCH transmissions using the same frequency band can be achieved using beamforming techniques to avoid interference during PUSCH transmissions to the network device.

[0024] In the present disclosure, details of various embodiments describe supporting PUSCH (or UL) transmissions that utilize SDM and at least two antenna panels of a UE. However, for the embodiments in the present disclosure, a UE having two antenna panels is assumed. Each of the two antenna panels of the UE can have a corresponding sounding reference signal resource set (SRS-ResourceSet). Thus, two SRS-ResourceSets can be used corresponding to each of the two antenna panels of the UE. PUSCH (or UL) transmissions using SDM can be codebook-based and / or non-codebook-based and are scheduled using a single DCI. The network device can send a configuration associated with or corresponding to the two SRS-ResourceSets to the UE. The configuration associated with or corresponding to the two SRS-ResourceSets can set the use of the SRS-ResourceSet as a "codebook" for codebook-based PUSCH (or UL) transmissions or a "non-codebook" for non-codebook-based PUSCH (or UL) transmissions.

[0025] In some embodiments, and by way of non-limiting example, for codebook-based and / or non-codebook-based PUSCH (or UL) transmission, each SRS-ResourceSet may correspond to an antenna panel, and thus, the first SRS-ResourceSet may be mapped to the first antenna panel of the two antenna panels of the UE, and the second SRS-ResourceSet may be mapped to the second antenna panel of the two antenna panels of the UE. Alternatively, the first SRS-ResourceSet may be mapped to the second antenna panel of the two antenna panels of the UE, and the second SRS-ResourceSet may be mapped to the first antenna panel of the two antenna panels of the UE.

[0026] In some embodiments, and by way of non-limiting example, for codebook-based and / or non-codebook-based PUSCH (or UL) transmission, each SRS-ResourceSet may be configured by the network (e.g., a network device in the RAN or CN) with the same number of SRS resources. In some embodiments, the first SRS-ResourceSet may have a different number of SRS resources from the second SRS-ResourceSet. In some embodiments, the UE may be configured by the network with an uplink full power mode of 0 or 1. Alternatively, the UE may not be configured for uplink full power. By way of non-limiting example, when the UE is not configured with uplink full power mode 2, the SRS-Resources in both the first SRS-ResourceSet and the second SRS-ResourceSet may be configured by the network with the same number of SRS ports. Alternatively or in addition, the SRS-Resources in both the first SRS-ResourceSet and the second SRS-ResourceSet may be configured by the network with different numbers of SRS ports, regardless of the uplink full power mode of the UE.

[0027] In some embodiments, dynamic point selection (DPS) for codebook-based or non-codebook-based simultaneous or concurrent PUSCH (or UL) transmission using SDM configured by a single DCI may be supported by using the SRS resource set indication field of the DCI. By way of non-limiting example, the SRS resource set indication field may be multiple bits. For example, the SRS resource set indication field may be two bits. Thus, the possible values of the SRS resource set indication field may be 00, 01, 10, and 11.

[0028] In some embodiments, the value of the SRS resource set indication field in the DCI may be set to 00 to configure or indicate that the UE uses the first antenna panel among two antenna panels and uses the first SRS-ResourceSet for codebook-based simultaneous or concurrent PUSCH transmission as described herein. The value of the SRS resource set indication field in the DCI may be set to 01 to configure or indicate that the UE uses the second antenna panel among two antenna panels and uses the second SRS-ResourceSet for codebook-based simultaneous or concurrent PUSCH transmission as described herein. In other words, when the most significant bit (MSB) of the SRS resource set indication field is set to 0, the value of the least significant bit (LSB) of the SRS resource set indication field may describe or indicate that the UE uses the first antenna panel (using the first SRS-ResourceSet) when the LSB is set to 0 and uses the second antenna panel (using the second SRS-ResourceSet) when the LSB is set to 1.

[0029] The value of the SRS resource set indication field in the DCI may be set to 10 to configure or indicate that the UE uses the first antenna panel among two antenna panels, uses the first SRSResourceSet, and uses the second antenna panel among two antenna panels and uses the second SRSResourceSet for codebook-based simultaneous or concurrent PUSCH transmission as described herein. In other words, when the MSB of the SRS resource set indication field is set to 1 and the value of the LSB of the SRS resource set indication field is set to 0, the UE may use both the first antenna panel and the second antenna panel and the corresponding first SRS-ResourceSet and second SRS-ResourceSet.

[0030] When the value of the SRS resource set indicator field in the DCI is set to 11, in some embodiments, the UE may consider this value as reserved and may ignore it. In other words, the value 11 for the SRS resource set indicator field can be processed by the UE to map and transmit codebook-based PUSCH (or UL) transmissions using SDM with one or more antenna panels and the corresponding one or more SRS-ResourceSets, as described herein. The UE may determine one or more antenna panels based on various factors including, for example, the QoS of the data. Alternatively, the value 11 for the SRS resource set indication may be used to switch the mapping of the antenna panel among at least two antenna panels and the corresponding SRS-ResourceSet among at least two SRS-ResourceSets. For example, in one case, the first SRS resource indicator field may be mapped to the first SRS-ResourceSet and the second SRS resource indicator field may be mapped to the second SRS-ResourceSet; in another case, the first SRS resource indicator field may be mapped to the second SRS-ResourceSet and the second SRS resource indicator field may be mapped to the first SRS-ResourceSet. Additionally or alternatively, in one case, the first SRS-ResourceSet may be mapped to the first antenna panel and the second SRS-ResourceSet may be mapped to the second antenna panel; in another case, the first SRS-ResourceSet may be mapped to the second antenna panel and the second SRS-ResourceSet may be mapped to the first antenna panel.

[0031] Figure 3 An example mapping of two SRS resource indicator fields in the downlink control information (DCI) to the SRS-Resource of the SRS-ResourceSet in multiple SRS-ResourceSets and the antenna panel in multiple antenna panels according to the embodiments described herein is shown. As described herein, a single DCI field may include two SRS resource indicator (SRI) fields such that the first SRI field corresponds to the first SRS-ResourceSet corresponding to the first antenna panel among two antenna panels and the second SRI field corresponds to the second SRS-ResourceSet corresponding to the second antenna panel among two antenna panels. Thus, each SRI may indicate the SRS resource of the corresponding SRS-ResourceSet.

[0032] Although Figure 3Corresponding to codebook-based PUSCH (or UL) transmission, but for non-codebook-based PUSCH (or UL) transmission, a single DCI field may include two SRS resource indicators (SRIs) fields such that the first SRI field corresponds to a first SRS-ResourceSet corresponding to the first antenna panel of two antenna panels, and the second SRI field corresponds to a second SRS-ResourceSet corresponding to the second antenna panel of two antenna panels. Each SRI may indicate one or more SRS resources of the corresponding SRS-ResourceSet.

[0033] As shown in FIG. 300, a first SRI field 314 and a second SRI field 316 are shown. The first SRI field 314 corresponds to a first SRS-ResourceSet 302, and the second SRI field 316 corresponds to a second SRS-ResourceSet 304. The first SRS-ResourceSet 302 and / or the second SRS-ResourceSet 304 may have corresponding usages set to "codebook" for codebook-based simultaneous or concurrent PUSCH (or UL) transmission using SDM. Each SRS-ResourceSet may have two resources, for example, a first SRS-Resource0 306 and a second SRS-Resource 1 308 for the first SRS-ResourceSet 302, and a first SRS-Resource 0 310 and a second SRS-Resource 1 312 for the second SRS-ResourceSet 304. Thus, the first SRI field 314 can be used to identify a specific SRS resource, for example, the first SRS-Resource 306 or the second SRS-Resource 308 of the first SRS-ResourceSet 302, or the first SRS-Resource 310 or the second SRS-Resource 312 of the second SRS-ResourceSet 304. The first SRS resource in each SRS-ResourceSet can be identified using the value 0 of the SRI field, and the second SRS resource in each SRS-ResourceSet can be identified using the value 1 of the SRI field.

[0034] Alternatively, as Figure 4As shown in FIG. 400, another example mapping of a single SRS resource indicator field in downlink control information (DCI) according to embodiments described herein to SRS resources in multiple SRS-ResourceSets and antenna panels in multiple antenna panels is shown. The single SRI field may identify a pair of SRS resources that are in the same relative position in each of two SRS-ResourceSets. The single SRI field may have a first value 0, as shown at 414, and a second value 1, as shown at 416. The first value 0 414 may correspond to the first SRS resource in each SRS-ResourceSet, e.g., the first SRS resource SRS-Resource 0 406 of the first SRS-ResourceSet 402 and the first SRS resource SRS-Resource 0 410 of the second SRS-ResourceSet 404, respectively. The second value 1 416 may correspond to the second SRS resource in each SRS-ResourceSet, e.g., the second SRS resource SRS-Resource 1 408 of the first SRS-ResourceSet 402 and the second SRS resource SRS-Resource 1 412 of the second SRS-ResourceSet 404, respectively. Thus, the value of the single SRI identifies the SRS resource based on the relative position of the SRS resource in each SRS-ResourceSet.

[0035] Although Figure 4Corresponding to codebook-based PUSCH (or UL) transmission, but for non-codebook-based PUSCH (or UL) transmission, a single DCI field may include a single SRI field that identifies one or more pairs of SRS resources for each of two SRS-ResourceSets. The bit width of the single SRI field may be optimized corresponding to the number of layer combinations across two antenna panels. For example, the single SRI field may identify the number of SRS resources from a first SRS-ResourceSet (mapped to a first antenna panel) and a second SRS-ResourceSet (mapped to a second antenna panel). For example, [1,1] may suggest selecting 1 SRS-Resource from the first SRS-ResourceSet and 1 SRS-Resource from the second SRS-ResourceSet; [1,2] may suggest selecting 1 SRS-Resource from the first SRS-ResourceSet and 2 SRS-Resources from the second SRS-ResourceSet; [2,1] may suggest selecting 2 SRS-Resources from the first SRS-ResourceSet and 1 SRS-Resource from the second SRS-ResourceSet; and [2,2] may suggest selecting 2 SRS-Resources from the first SRS-ResourceSet and 2 SRS-Resources from the second SRS-ResourceSet.

[0036] In some embodiments, to reduce signaling overhead and / or latency, for codebook-based or non-codebook-based simultaneous or concurrent PUSCH (or UL) transmissions utilizing SDM that are scheduled using a single DCI, to reduce signaling overhead and latency, the transmission configuration indicator (TCI) states and / or beam indicators across multiple channels or beams can be unified. As a non-limiting example, a pair of unified TCI states can include two joint TCIs (e.g., a TCI state for UL transmission and a TCI state for downlink (DL) transmission), 2 UL TCIs (e.g., a first UL TCI corresponding to a first antenna panel or a first beam, and a second UL TCI corresponding to a second antenna panel or a second beam). Additionally or alternatively, a pair of unified TCI states can include 1 joint TCI and 1 UL TCI. As a non-limiting example, the first TCI indicated in the unified TCI (which can also be referred to as the first unified TCI) can be applied to a first SRS-ResourceSet, and the second TCI indicated in the unified TCI (which can also be referred to as the second unified TCI) can be applied to a second SRS-ResourceSet. The pair of unified TCI states can be communicated to the UE using DCI. Alternatively, the pair of unified TCI states can also be communicated to the UE using a MAC control element (MAC CE).

[0037] Figure 5 An example mapping of transmission precoding matrix indicators (TPMIs) and multiple sounding reference signal (SRS) ports of multiple SRS-ResourceSets according to embodiments described herein is shown. Which TPMI will be used for each SRS port of each SRS resource corresponding to each SRS-ResourceSet can be configured or indicated to the UE. In some embodiments, and as a non-limiting example, a single TPMI field in DCI can be applied to two SRS-ResourceSets, and thus to each SRS port of each SRS resource of the two SRS-ResourceSets. As described herein, a first SRS-ResourceSet and a second SRS-ResourceSet can correspond to a first antenna panel and a second antenna panel, respectively. Thus, a single TPMI field included in a single DCI can describe the precoding information and the number of information layers for all SRS ports of all SRS resources corresponding to the first SRS-ResourceSet mapped to the first antenna panel and the second SRS-ResourceSet mapped to the second antenna panel, and an SRS resource set indicator field is used to indicate a specific SRS resource (or SRS-ResourceSet or antenna panel), as described herein.

[0038] The TPMI field may have a TPMI index from 0 to 3, which is shown as 502 in FIG. 500. The first row shown as 504 may correspond to the first SRS port of the SRS resources of the first SRS-ResourceSet mapped to the first antenna panel, and the third row shown as 508 may correspond to the second SRS port of the SRS resources of the first SRS-ResourceSet mapped to the first antenna panel. Similarly, the second row shown as 506 may correspond to the first SRS port of the SRS resources of the second SRS-ResourceSet mapped to the second antenna panel, and the fourth row shown as 510 may correspond to the second SRS port of the SRS resources of the second SRS-ResourceSet mapped to the second antenna panel. The columns in FIG. 500 may correspond to the layers to which the TPMI may be applied. Each antenna panel may have up to four layers. Thus, as shown in FIG. 500, the TPMI index 0 may indicate one layer, the TPMI index 1 may indicate two layers, the TPMI index 2 may indicate three layers, and the TPMI index 4 may indicate the four layers to which the TPMI may be applied.

[0039] Alternatively, two TPMI fields in the DCI may describe the precoding information and the number of information layers corresponding to two SRS-ResourceSets. Thus, the first TPMI field may be applied to all SRS ports of the SRS resources of the first SRS-ResourceSet mapped to the first antenna panel, and the second TPMI field may be applied to all SRS ports of the SRS resources of the second SRS-ResourceSet mapped to the second antenna panel.

[0040] In some embodiments, the "antenna port" field included in a single DCI for codebook-based or non-codebook-based PUSCH (or UL) transmission using SDM may indicate an antenna port that includes one or more demodulation reference signal code division multiplexing (DMRS CDM) groups without data. Alternatively, the antenna ports included in the "antenna port" field included in a single DCI field may include two DMRS CDM groups without data. As a non-limiting example, the DMRS ports in the first DMRS CDM group without data may be mapped to the first antenna panel, and the DMRS ports in the second DMRS CDM group without data may be mapped to the second antenna panel. In addition, a value 0 for DMRS type 1 or 2 (where maxLength is 1 or 2 and the rank is 3) may be added so as to also be mapped to 2 DMRS CDM groups and 3 DMRS ports.

[0041] Figure 6Illustrates an example method of wireless communication by a UE according to an embodiment described herein, which can be used for codebook-based simultaneous or concurrent PUSCH transmission using SDM. As shown in the flowchart 600, at 602, the UE may receive a single DCI for codebook-based simultaneous or concurrent PUSCH transmission using SDM from a network (e.g., a network device in the RAN or CN), as described herein. The single DCI schedules PUSCH transmission using SDM, which uses multiple PUSCH transmissions using multiple antenna panels and multiple SRS resource sets, as described herein. Beamforming techniques are used to enable multiple PUSCH transmissions using SDM to avoid interference because each of the multiple PUSCH transmissions occurs simultaneously or concurrently using the same frequency range (or the same frequency band).

[0042] At 604, the UE may receive a configuration of at least two SRS-ResourceSets for codebook-based simultaneous or concurrent PUSCH transmission using SDM, as described herein. The first SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to the first antenna panel of the at least two antenna panels, and the second SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to the second antenna panel of the at least two antenna panels. The configuration of the at least two SRS-ResourceSets may also include other information of one or more SRS ports corresponding to one or more SRS resources of the at least two SRS-ResourceSets, as described herein.

[0043] At 606, the UE may correspondingly use the first SRS-ResourceSet and the first antenna panel to simultaneously or concurrently transmit a first sounding reference signal (SRS) to the network, and use the second SRS-ResourceSet and the second antenna panel to transmit a second SRS for codebook-based simultaneous or concurrent PUSCH transmission using SDM, as described herein. Since the details corresponding to the respective steps of the flowchart 600 are described in detail herein, those details are not repeated for the sake of brevity.

[0044] Figure 7Illustrates an example method of wireless communication by a UE according to an embodiment described herein, which can be used for non-codebook-based simultaneous or concurrent PUSCH transmission using SDM. As shown in flowchart 700, at 702, the UE may receive a single DCI for non-codebook-based simultaneous or concurrent PUSCH transmission using SDM from a network (e.g., a network device in the RAN or CN) as described herein. The single DCI schedules PUSCH transmission using SDM, which uses multiple PUSCH transmissions utilizing multiple antenna panels and multiple SRS resource sets as described herein. Beamforming techniques are used to enable multiple PUSCH transmissions using SDM to avoid interference since each of the multiple PUSCH transmissions occurs simultaneously or concurrently using the same frequency range (or the same frequency band).

[0045] At 704, the UE may receive a configuration of at least two SRS-ResourceSets for codebook-based simultaneous or concurrent PUSCH transmission using SDM as described herein. A first SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to a first antenna panel of the at least two antenna panels, and a second SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to a second antenna panel of the at least two antenna panels. The configuration of the at least two SRS-ResourceSets may further include other information of one or more SRS ports corresponding to one or more SRS resources of the at least two SRS-ResourceSets as described herein. Each of the first SRS-ResourceSet and the second SRS-ResourceSet may be configured for an equal number of SRS-Resources.

[0046] At 706, the UE may accordingly use the first SRS-ResourceSet and the first antenna panel to simultaneously or concurrently transmit a first sounding reference signal (SRS) to the network, and use the second SRS-ResourceSet and the second antenna panel to transmit a second SRS for codebook-based simultaneous or concurrent PUSCH transmission using SDM as described herein. Since the details corresponding to the respective steps of flowchart 700 are described in detail herein, those details are not repeated for the sake of brevity.

[0047] Figure 8Illustrates an example method of wireless communication by a network device according to an embodiment described herein, which can be used to configure a UE for codebook-based or non-codebook-based simultaneous or concurrent PUSCH transmission using SDM. As shown in flowchart 800, at 802, a network device (e.g., a network device in the RAN or CN) may send a single DCI for codebook-based or non-codebook-based simultaneous or concurrent PUSCH transmission using SDM to a user equipment (UE), as described herein. The single DCI schedules PUSCH transmission using SDM, which uses multiple PUSCH transmissions using multiple antenna panels and multiple SRS resource sets, as described herein. Beamforming techniques are used to enable multiple PUSCH transmissions using SDM to avoid interference, since each of the multiple PUSCH transmissions occurs simultaneously or concurrently using the same frequency range (or the same frequency band).

[0048] At 804, the network device may send a configuration of at least two SRS-ResourceSets for codebook-based or non-codebook-based simultaneous or concurrent PUSCH transmission using SDM to the UE, as described herein. The at least two SRS=ResourceSets may set their usage to values corresponding to codebook-based PUSCH transmission or non-codebook-based PUSCH transmission. The first SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to the first antenna panel of the at least two antenna panels, and the second SRS-ResourceSet of the at least two SRS-ResourceSets may be mapped to the second antenna panel of the at least two antenna panels. The configuration of the at least two SRS-ResourceSets may further include other information of one or more SRS ports corresponding to one or more SRS resources of the at least two SRS-ResourceSets, as described herein.

[0049] At 806, the network device may simultaneously or concurrently receive a first sounding reference signal (SRS) from the UE using the first SRS-ResourceSet and the first antenna panel, and receive a second SRS using the second SRS-ResourceSet and the second antenna panel for codebook-based simultaneous or concurrent PUSCH transmission using SDM, as described herein. Since the details corresponding to the respective steps of flowchart 800 are described in detail herein, those details are not repeated for the sake of brevity.

[0050] The embodiments contemplated herein include an apparatus having components for performing one or more elements of methods 600, 700, or 800. In the context of method 600 or 700, the apparatus can be, for example, an apparatus of a UE (such as the wireless device 1002 that is a UE, as described herein). In the context of method 800, the apparatus can be, for example, the network device 1020 (such as a base station, as described herein).

[0051] The embodiments contemplated herein include one or more non-transitory computer-readable media storing instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform one or more elements of methods 600, 700, or 800. In the context of method 600 or 700, the non-transitory computer-readable media can be, for example, the memory of a UE (such as the memory 1006 of the wireless device 1002 that is a UE, as described herein). In the context of method 800, the non-transitory computer-readable media can be, for example, the memory of a network device (such as the memory 1024 of the network device 1020, as described herein).

[0052] The embodiments contemplated herein include an apparatus having logic components, modules, or circuits for performing one or more elements of methods 600, 700, or 800. In the context of method 600 or 700, the apparatus can be, for example, an apparatus of a UE (such as the wireless device 1002 that is a UE, as described herein). In the context of method 800, the apparatus can be, for example, the network device 1020 (such as a base station, as described herein).

[0053] The embodiments contemplated herein include an apparatus having one or more processors and one or more computer-readable media that use or store instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of methods 600, 700, or 800. In the context of method 600 or 700, the apparatus can be, for example, an apparatus of a UE (such as the wireless device 1002 that is a UE, as described herein). In the context of method 600, the apparatus can be, for example, the network device 1020 (such as a base station, as described herein).

[0054] The embodiments contemplated herein include signals as described in or related to one or more elements of methods 600, 700, or 800.

[0055] The embodiments contemplated herein include a computer program or computer program product having instructions, where execution of the program by a processor causes the processor to perform one or more elements of methods 600, 700, or 800. In the context of method 600 or 700, the processor can be a processor of a UE (such as processor 1004 of wireless device 1002 as a UE, as described herein), and the instructions can be located, for example, in the processor and / or in the memory of the UE (such as memory 1006 of wireless device 1002 as a UE, as described herein). In the context of method 800, the processor can be a processor of a base station (such as processor 1022 of network device 1020, as described herein), and the instructions can be located, for example, in the processor and / or in the memory of the network device (such as memory 1024 of network device 1020, as described herein).

[0056] Figure 9 An example architecture of a wireless communication system 900 in accordance with embodiments disclosed herein is illustrated. The description provided below is for an example wireless communication system 900 operating in conjunction with the LTE system standard and / or the 5G or NR system standard provided in 3GPP technical specifications.

[0057] As Figure 9 shown, wireless communication system 900 includes UEs 902 and 904 (although any number of UEs can be used). In this example, UEs 902 and 904 are illustrated as smart phones (e.g., handheld touchscreen mobile computing devices capable of connecting to one or more cellular networks), but can also include any mobile or non-mobile computing device configured for wireless communication.

[0058] UEs 902 and 904 can be configured to be communicatively coupled to RAN 906. In an embodiment, RAN 906 can be an NG-RAN, an E-UTRAN, etc. UEs 902 and 904 utilize connections (or channels) to RAN 906 (shown as connections 908 and 910, respectively), where each connection (or channel) includes a physical communication interface. RAN 906 can include one or more network devices (e.g., base stations) enabling connections 908 and 910, such as network device 912 and network device 914.

[0059] In this example, connections 908 and 910 are air interfaces enabling such communicative coupling and can conform to the RAT used by RAN 906, such as, for example, LTE and / or NR.

[0060] In some embodiments, UE 902 and UE 904 may also directly perform communication data interaction via sidelink interface 916. The illustrated UE 904 is configured to access an access point (shown as AP 918) via connection 920. As an example, connection 920 may include a local wireless connection, such as a connection compliant with any IEEE 802.11 protocol, where AP 918 may include a router. In this example, AP 918 may be connected to another network (e.g., the Internet) without going through CN 924.

[0061] In embodiments, UE 902 and UE 904 may be configured to communicate with each other or with network device 912 and / or network device 914 over a multi-carrier communication channel using orthogonal frequency division multiplexing (OFDM) communication signals according to various communication technologies, such as but not limited to orthogonal frequency division multiple access (OFDMA) communication technology (e.g., for downlink communication) or single-carrier frequency division multiple access (SC-FDMA) communication technology (e.g., for uplink and ProSe or sidelink communication), although the scope of the embodiments is not limited in this regard. The OFDM signal may include a plurality of orthogonal subcarriers.

[0062] In some embodiments, all or part of network device 912 or network device 914 may be implemented as one or more software entities running on a server computer as part of a virtual network. Additionally, or in other embodiments, network device 912 or network device 914 may be configured to communicate with each other via interface 922. In an embodiment where wireless communication system 900 is an LTE system (e.g., when CN 924 is an EPC), interface 922 may be an X2 interface. The X2 interface may be defined between two or more network devices (e.g., two or more eNBs, etc.) connected to the EPC and / or between two eNBs connected to the EPC. In an embodiment where wireless communication system 900 is an NR system (e.g., when CN 924 is a 5GC), interface 922 may be an Xn interface. The Xn interface is defined between two or more network devices (e.g., two or more gNBs, etc.) connected to the 5GC, between network device 912 (e.g., gNB) connected to the 5GC and an eNB, and / or between two eNBs connected to the 5GC (e.g., CN924).

[0063] The illustrated RAN 906 is communicatively coupled to the CN 924. The CN 924 may include one or more network elements 926 configured to provide various data and telecommunication services to customers / subscribers (e.g., users of UEs 902 and 904) connected to the CN 924 via the RAN 906. The components of the CN 924 may be implemented in one physical device or in separate physical devices including components for reading and executing instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium).

[0064] In an embodiment, the CN 924 may be an EPC, and the RAN 906 may be connected to the CN 924 via the S1 interface 928. In an embodiment, the S1 interface 928 may be divided into two parts: the S1 user plane (S1-U) interface that carries traffic data between the network device 912 or network device 914 and the serving gateway (S-GW); and the S1-MME interface that is a signaling interface between the network device 912 or network device 914 and the mobility management entity (MME).

[0065] In an embodiment, the CN 924 may be a 5GC, and the RAN 906 may be connected to the CN 924 via the NG interface 928. In an embodiment, the NG interface 928 may be divided into two parts: the NG user plane (NG-U) interface that carries traffic data between the network device 912 or network device 914 and the user plane function (UPF); and the S1 control plane (NG-C) interface that is a signaling interface between the network device 912 or network device 914 and the access and mobility management function (AMF).

[0066] Generally, the application server 930 may be an element that provides an application that uses Internet Protocol (IP) bearer resources together with the CN 924 (e.g., packet-switched data services). The application server 930 may also be configured to support one or more communication services (e.g., VoIP sessions, group communication sessions, etc.) for the UEs 902 and 904 via the CN 924. The application server 930 may communicate with the CN 924 via the IP communication interface 932.

[0067] Figure 10 Illustrated is a system 1000 for performing signaling 1038 between a wireless device 1002 and a network device 1020 according to embodiments disclosed herein. The system 1000 may be part of a wireless communication system as described herein. The wireless device 1002 may be, for example, a UE of a wireless communication system. The network device 1020 may be, for example, a network device (e.g., a base station, eNB, or gNB) of a wireless communication system.

[0068] The wireless device 1002 may include one or more processors 1004. The processor 1004 may execute instructions to perform various operations of the wireless device 1002 as described herein. The processor 1004 may include one or more baseband processors implemented using, for example, a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.

[0069] The wireless device 1002 may include a memory 1006. The memory 1006 may be a non-transitory computer-readable storage medium storing instructions 1008 (which may include, for example, instructions executed by the processor 1004). The instructions 1008 may also be referred to as program code or a computer program. The memory 1006 may also store data used by the processor 1004 and results computed by the processor.

[0070] The wireless device 1002 may include one or more transceivers 1010, which may include radio frequency (RF) transmitter and / or receiver circuitry that uses the antenna 1012 of the wireless device 1002 to facilitate signaling (e.g., signaling 1038) to and / or from the wireless device 1002 and other devices (e.g., network device 1020) according to a corresponding RAT.

[0071] The wireless device 1002 may include one or more antennas 1012 (e.g., one, two, four, or more). For embodiments having multiple antennas 1012, the wireless device 1002 may take advantage of the spatial diversity of these multiple antennas 1012 to transmit and / or receive multiple different data streams on the same time-frequency resource. This behavior may be referred to as, for example, multiple-input multiple-output (MIMO) behavior (referring to the multiple antennas used at each of the transmitting and receiving devices to implement this aspect). The MIMO transmission performed by the wireless device 1002 may be implemented according to pre-coding (or digital beamforming) applied at the wireless device 1002, which multiplexes data streams between the antennas 1012 based on known or assumed channel characteristics such that each data stream is received at an appropriate signal strength relative to the other streams and at a desired location in the spatial domain (e.g., the location of the receiver associated with the data stream). Certain embodiments may use single-user MIMO (SU-MIMO) methods (where the data streams are all directed to a single receiver) and / or multi-user MIMO (MU-MIMO) methods (where individual data streams may be directed to separate (different) receivers at different locations in the spatial domain).

[0072] In some embodiments with multiple antennas, the wireless device 1002 may implement analog beamforming techniques, whereby the phases of the signals transmitted by the antennas 1012 are relatively adjusted such that the (joint) transmission of the antennas 1012 has directivity (which is sometimes referred to as beam steering).

[0073] The wireless device 1002 may include one or more interfaces 1014. The interfaces 1014 may be used to provide input to or output from the wireless device 1002. For example, the wireless device 1002 as a UE may include interfaces 1014 such as a microphone, a speaker, a touch screen, buttons, etc. to allow a user of the UE to provide input to and / or output from the UE. Other interfaces of such a UE may consist of transmitters, receivers, and other circuitry (e.g., in addition to the transceiver 1010 / antenna 1012 already described), which allow communication between the UE and other devices and may operate according to known protocols (e.g., etc.).

[0074] The wireless device 1002 may include one or more modules for transmitting using the physical uplink shared channel with SDM, which are shown as PUSCH-SDM modules 1016 in Figure 10 The PUSCH-SDM module 1016 may be implemented via hardware, software, or a combination thereof. For example, the PUSCH-SDM module 1016 may be implemented as a processor, circuitry, and / or instructions 1008 stored in the memory 1006 and executed by the processor 1004. In some examples, the PUSCH-SDM module 1016 may be integrated within the processor 1004 and / or the transceiver 1010. For example, the PUSCH-SDM module 1016 may be implemented by a combination of software components (e.g., executed by a DSP or a general-purpose processor) and hardware components (e.g., logic gates and circuitry) within the processor 1004 or the transceiver 1010.

[0075] From the perspective of the UE, the PUSCH-SDM module 1016 may be used for various aspects of the present disclosure, for example, Figures 1 to 8 aspects of. The PUSCH-SDM module 1016 may be configured to perform, for example, PUSCH transmission using SDM (e.g., to the network device 1020).

[0076] The network device 1020 may include one or more processors 1022. The processors 1022 may execute instructions to perform various operations of the network device 1020 as described herein. The processor 1004 may include one or more baseband processors implemented using, for example, a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.

[0077] The network device 1020 may include a memory 1024. The memory 1024 may be a non-transitory computer-readable storage medium storing instructions 1026 (which may include, for example, instructions executed by the processor 1022). The instructions 1026 may also be referred to as program code or a computer program. The memory 1024 may also store data used by the processor 1022 and results calculated by the processor.

[0078] The network device 1020 may include one or more transceivers 1028, which may include RF transmitter and / or receiver circuitry that uses the antenna 1030 of the network device 1020 to facilitate signaling (e.g., signaling 1038) to and / or from the network device 1020 and other devices (e.g., the wireless device 1002) according to a corresponding RAT.

[0079] The network device 1020 may include one or more antennas 1030 (e.g., one, two, four or more). In embodiments having multiple antennas 1030, the network device 1020 may perform MIMO, digital beamforming, analog beamforming, beam control, etc., as already described.

[0080] The network device 1020 may include one or more interfaces 1032. The interface 1032 may be used to provide input to the network device 1020 or provide output from the network device. For example, the network device 1020, which may be a network device (e.g., a base station), may include an interface 1032 composed of a transmitter, a receiver, and other circuitry (e.g., in addition to the transceivers 1028 / antennas 1030 already described), which enables the network device to communicate with other equipment in the core network and / or enables the network device to communicate with external networks, computers, databases, etc., for the purpose of operating, managing, and maintaining the network device or other equipment that can be operatively connected to the network device.

[0081] The network device 1020 may include one or more modules for transmitting using the physical uplink shared channel with SDM, which is in Figure 10is shown as PUSCH-SDM module 1034 in the figure. The PUSCH-SDM module 1034 can be implemented via hardware, software, or a combination thereof. For example, the PUSCH-SDM module 1034 can be implemented as a processor, circuitry, and / or instructions 1026 stored in the memory 1024 and executed by the processor 1022. In some examples, the PUSCH-SDM module 1034 can be integrated within the processor 1022 and / or the transceiver 1028. For example, the PUSCH-SDM module 1034 can be implemented by a combination of software components (e.g., executed by a DSP or a general-purpose processor) and hardware components (e.g., logic gates and circuitry) within the processor 1022 or the transceiver 1028.

[0082] The PUSCH-SDM module 1034 can be used in various aspects of the present disclosure. For example, from the perspective of a network device (e.g., the wireless device 1020) Figures 1 to 8 of the aspects.

[0083] For one or more embodiments, at least one of the components stated in one or more of the foregoing figures can be configured to perform one or more operations, techniques, processes, and / or methods as described herein. For example, a baseband processor as described herein in connection with one or more of the foregoing figures can be configured to operate according to one or more of the examples stated herein. As another example, circuitry associated with a UE, a network device (e.g., a base station), a network element, etc., as described above in connection with one or more of the foregoing figures can be configured to operate according to one or more of the examples stated herein.

[0084] Unless otherwise explicitly stated, any of the foregoing embodiments can be combined with any other embodiment (or combination of embodiments). The foregoing description of one or more specific implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise forms disclosed. Modifications and variations are possible in light of the above teachings, or can be obtained from practice of various embodiments.

[0085] Embodiments and specific implementations of the systems and methods described herein can include various operations, which can be embodied in machine-executable instructions to be executed by a computer system. The computer system can include one or more general-purpose or special-purpose computers (or other electronic devices). The computer system can include hardware components that include specific logic components for performing operations; or can include a combination of hardware, software, and / or firmware.

[0086] It should be recognized that the systems described herein include descriptions of specific embodiments. These embodiments can be combined into a single system, partially combined into other systems, divided into multiple systems, or otherwise partitioned or combined. Additionally, it is contemplated that the parameters, attributes, aspects, etc. of one embodiment can be used in another embodiment. For clarity, these parameters, attributes, aspects, etc. are described in only one or more embodiments, and it should be recognized that, unless expressly stated herein, these parameters, attributes, aspects, etc. can be combined with or substituted for the parameters, attributes, aspects, etc. of another embodiment.

[0087] It is well known that the use of personally identifiable information should follow privacy policies and practices that are recognized as meeting or exceeding industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of inadvertent or unauthorized access or use, and the nature of authorized use should be clearly explained to users.

[0088] Although the foregoing has been described in considerable detail for purposes of clarity, it will be apparent that certain changes and modifications can be made without departing from the principles of the invention. It should be noted that there are many alternative ways of implementing both the processes and apparatuses described herein. Accordingly, the embodiments of the invention should be regarded as illustrative rather than restrictive, and the specification is not limited to the details given herein but may be modified within the scope and equivalents of the appended claims.

Claims

1. A user equipment (UE), the user equipment (UE) comprises: a transceiver associated with at least two antenna panels; and a processor configured to: receive, via the transceiver, a single downlink control information (DCI) from a network device for codebook-based simultaneous or concurrent physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM); receive, via the transceiver, configurations of at least two sounding reference signal resource sets (SRS-ResourceSet) from the network device, the at least two SRS-ResourceSet being configured for use by the codebook-based simultaneous or concurrent PUSCH transmission using SDM, a first SRS-ResourceSet of the at least two SRS-ResourceSet being mapped to a first antenna panel of the at least two antenna panels, and a second SRS-ResourceSet of the at least two SRS-ResourceSet being mapped to a second antenna panel of the at least two antenna panels; and transmit, via the transceiver, a first sounding reference signal (SRS) using the first SRS-ResourceSet and the first antenna panel and a second SRS using the second SRS-ResourceSet and the second antenna panel to the network device simultaneously or concurrently for the codebook-based simultaneous or concurrent PUSCH transmission using SDM.

2. The UE according to claim 1, wherein each of the first SRS-ResourceSet and the second SRS-ResourceSet is configured by the network device for an equal number of SRS-Resource.

3. The UE according to claim 1, wherein the SRS-Resource in each SRS-ResourceSet of the at least two SRS-ResourceSet is configured with an equal number of SRS ports.

4. The UE according to claim 3, wherein the uplink full power mode is 0 or 1 or not configured.

5. The UE according to claim 1, wherein when the UE is not allocated for the uplink full power mode 2, the SRS-Resource in each SRS-ResourceSet of the at least two SRS-ResourceSet is configured with an equal number of SRS ports.

6. The UE according to claim 1, wherein: the processor is further configured to facilitate dynamic point selection (DPS) using an SRS resource set indication field of a plurality of bits in the DCI.

7. The UE according to claim 6, wherein: The multiple bits of the SRS resource set indication field are two bits, the value of the most significant bit (MSB) of the SRS resource set indication field is set to 0, and the value of the least significant bit (LSB) of the SRS resource set indication field describes the antenna panel among the at least two antenna panels for the scheduled PUSCH transmission; Or The multiple bits of the SRS resource set indication field are two bits, and the network device is indicated that the scheduled PUSCH transmission uses two antenna panels by setting the value of the MSB of the SRS resource set indication field to 1 and setting the value of the LSB of the SRS resource set indication field to 0; or The multiple bits of the SRS resource set indication field are two bits, the value of the MSB of the SRS resource set indication field is set to 1, the value of the LSB of the SRS resource set indication field is set to 1, and the SRS resource set indication field is used to map or switch the mapping of the antenna panel among the at least two antenna panels and the corresponding SRS-ResourceSet among the at least two SRS-ResourceSets.

8. The UE according to claim 1, wherein the single DCI further includes information corresponding to a unified transmission configuration indicator (TCI) for each SRS resource set corresponding to the at least two SRS-ResourceSets.

9. The UE according to claim 8, Wherein: The unified TCI includes a pair of unified TCI states for codebook activation or deactivation; The pair of unified TCI states includes two joint TCIs, two uplink TCIs, or a combination of a joint TCI and an uplink TCI; The first unified TCI indicated in the single DCI corresponds to the first SRS resource set among the at least two SRS-ResourceSets; and The second unified TCI indicated in the single DCI corresponds to the second SRS resource set among the at least two SRS-ResourceSets.

10. The UE according to claim 1, Wherein: The single DCI further includes a single SRS resource indicator (SRI) field, and the single SRS resource indicator (SRI) field describes the relative position of the SRS-Resource among the at least two SRS-ResourceSets; The single SRI field with a value of 0 corresponds to SRS-Resource-0 of each SRS-ResourceSet among the at least two SRS-ResourceSets; and The single SRI field with a value of 1 corresponds to SRS-Resource-1 of each SRS-ResourceSet among the at least two SRS-ResourceSets.

11. The UE according to claim 1, Wherein: The single DCI further includes: A first SRS resource indicator (SRI) field corresponding to an SRS - Resource in a first SRS - ResourceSet among the at least two SRS - ResourceSets, where the first SRS - ResourceSet corresponds to a first antenna panel among the at least two antenna panels; and A second SRI field corresponding to an SRS - Resource in a second SRS - ResourceSet among the at least two SRS - ResourceSets, where the second SRS - ResourceSet corresponds to a second antenna panel among the at least two antenna panels.

12. The UE according to claim 1, wherein: The single DCI further includes: A first transmit precoding matrix indicator (TPMI) field, the first transmit precoding matrix indicator (TPMI) field describing precoding information and the number of information layers for one or more SRS ports corresponding to an SRS - Resource mapped to the first antenna panel among the at least two antenna panels; and A second TPMI field, the second TPMI field describing the precoding information and the number of information layers for one or more SRS ports corresponding to an SRS - Resource mapped to the second antenna panel among the at least two antenna panels.

13. The UE according to claim 1, wherein: The single DCI further includes: A single transmit precoding matrix indicator (TPMI) field, the single transmit precoding matrix indicator (TPMI) field describing precoding information and the number of information layers for all SRS ports corresponding to all SRS - Resources mapped to each antenna panel among the at least two antenna panels.

14. The UE according to claim 1, wherein the single DCI further includes a single antenna port field, the single antenna port field describing antenna ports including one or more demodulation reference signal code - division multiplexing (DMRS CDM) groups without data.

15. A user equipment (UE), the user equipment (UE) comprises: A transceiver associated with at least two antenna panels; and A processor configured to: Receive, via the transceiver, a single downlink control information (DCI) from a network device, the single downlink control information (DCI) being for non - codebook - based simultaneous or concurrent physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM); Receiving, via the transceiver, configurations of at least two sounding reference signal resource sets (SRS-ResourceSet) from the network device, where the at least two SRS-ResourceSet are configured for use by non-codebook-based simultaneous or concurrent PUSCH transmissions, a first SRS-ResourceSet among the at least two SRS-ResourceSet is mapped to a first antenna panel among at least two antenna panels, and a second SRS-ResourceSet among the at least two SRS-ResourceSet is mapped to a second antenna panel among the at least two antenna panels; And Transmitting, via the transceiver, a first sounding reference signal (SRS) to the network device simultaneously or concurrently using the first SRS-ResourceSet and the first antenna panel and transmitting a second SRS using the second SRS-ResourceSet and the second antenna panel; Each of the first SRS-ResourceSet and the second SRS-ResourceSet is configured for an equal number of SRS-Resource.

16. The UE according to claim 15, Wherein: The processor is further configured to facilitate dynamic point selection (DPS) using a multi-bit SRS resource set indication field; The multi-bit of the SRS resource set indication field are two bits, the value of the most significant bit (MSB) of the SRS resource set indication field is set to 0, and the Value of the least significant bit (LSB) of the SRS resource set indication field describes the antenna panel among the at least two antenna panels for the scheduled PUSCH transmission; The multi-bit of the SRS resource set indication field are two bits, by setting the Value of the MSB of the SRS resource set indication field to 1 and setting the value of the LSB of the SRS resource set indication field to 0 to indicate to the network device that the scheduled PUSCH transmission uses two antenna panels; or The multi-bit of the SRS resource set indication field are two bits, the value of the MSB of the SRS resource set indication field is set to 1, the value of the LSB of the SRS resource set indication field is set to 1, and the SRS resource set indication field is used to map or switch the SRI to the corresponding SRS-ResourceSet among the at least two SRS-ResourceSet.

17. The UE according to claim 15, Wherein: The single DCI further includes information corresponding to a unified transmission configuration indicator (TCI) for each SRS resource set corresponding to the at least two SRS-ResourceSet; The unified TCI includes a pair of unified TCI states for codebook activation or deactivation; The pair of unified TCI states includes two joint TCIs, two uplink TCIs, or a combination of a joint TCI and an uplink TCI; The first unified TCI indicated in the single DCI corresponds to the first SRS resource set among the at least two SRS-ResourceSets; and The second unified TCI indicated in the single DCI corresponds to the second SRS resource set among the at least two SRS-ResourceSets.

18. The UE according to claim 15, wherein: The single DCI further includes a single SRS resource indicator (SRI) field, and the single SRS resource indicator (SRI) field describes one or more pairs of SRS-Resources from the at least two SRS-ResourceSets; or The single DCI further includes a first SRS resource indicator (SRI) field corresponding to one or more SRS-Resources in the first SRS-ResourceSet among the at least two SRS-ResourceSets and a second SRI field corresponding to one or more SRS-Resources in the second SRS-ResourceSet among the at least two SRS-ResourceSets. The first SRS-ResourceSet corresponds to the first antenna panel among the at least two antenna panels, and the second SRS-ResourceSet corresponds to the second antenna panel among the at least two antenna panels.

19. The UE according to claim 15, wherein the single DCI further includes a single antenna port field, and the single antenna port field describes an antenna port including one or more demodulation reference signal code division multiplexing (DMRS CDM) groups without data.

20. A network device, the network device comprises: a transceiver; and a processor configured to: Send, via the transceiver, a single downlink control information (DCI) for simultaneous or concurrent physical uplink shared channel (PUSCH) transmission using spatial domain multiplexing (SDM) to a user equipment (UE), and the simultaneous and concurrent PUSCH transmission using SDM is codebook-based PUSCH transmission or non-codebook-based PUSCH transmission; Send, via the transceiver, the configuration of at least two sounding reference signal resource sets (SRS-ResourceSets) to the UE, and the at least two SRS-ResourceSets have a usage value set to correspond to the codebook-based PUSCH transmission or the non-codebook-based PUSCH transmission; and Receive, via the transceiver, the simultaneous or concurrent PUSCH transmission using SDM from the UE using the first antenna panel and the second antenna panel among the at least two antenna panels.

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