PHYSICAL UPLINK SHARED CHANNEL SETTING METHOD, APPARATUS, COMMUNICATION DEVICE AND STORAGE MEDIUM

By setting up physical uplink shared channel (PUSCH) in incoherent joint transmission (NC-JT) for different antenna boards of terminal devices in the MIMO system, and using different transmission configuration instructions (TCI) for spatial division multiplexing (SDM), the problems of transmission delay and low resource utilization efficiency in multiple TRP scenarios are solved, and efficient and reliable PUSCH transmission is achieved.

JP2025515467AActive Publication Date: 2025-05-15BEIJING XIAOMI MOBILE SOFTWARE CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2024563088
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2022-04-28
Publication Date
2025-05-15
Estimated Expiration
2042-04-28

AI Technical Summary

Technical Problem

In multi-input and multi-output (MIMO) systems, the prior art is difficult to effectively improve the transmission efficiency and reliability of physical uplink shared channel (PUSCH), especially in the multi-transmission receiving point (TRP) scenario, there are problems of transmission delay and low resource utilization efficiency.

Method used

By setting up physical uplink shared channels (PUSCH) in incoherent joint transmission (NC-JT) for different antenna panels of terminal devices, spatial division multiplexing (SDM) is used using different transmission configuration instructions (TCI), and transmitting through a single encoded word (CW) or multiple encoded words, flexible configuration of different data transmission layers and efficient utilization of resources are achieved.

Benefits of technology

It improves the transmission efficiency and reliability of PUSCH, reduces transmission delay in multiple TRP scenarios, improves the overall throughput of the system, and improves the anti-interference capability and resource utilization efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025515467000001_ABST
    Figure 2025515467000001_ABST
Patent Text Reader

Abstract

An embodiment of the present disclosure relates to a PUSCH configuration method, an apparatus, a communication device, and a storage medium, the method including: configuring different transmission configuration indications (TCIs) for non-coherent joint transmission (NC-JT) of an uplink physical uplink shared channel (PUSCH) on different antenna panels of a terminal, the TCIs being associated with beam information, the different TCIs being simultaneously associated with the same transmission resource, the transmission resource including a time domain resource and a frequency domain resource, and the different antenna panels performing NC-JT of the PUSCH using spatial division multiplexing (SDM).
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present application relates to the field of wireless communication technology, but is not limited to the field of wireless communication technology, and in particular to a Physical Uplink Shared Channel (PUSCH) configuration method, apparatus, communication device, and storage medium. [Background technology]

[0002] Multiple Input Multiple Output (MIMO) is an antenna system that uses multiple antennas on both the transmitting and receiving sides to create multiple channels between the transmitter and the receiver in order to increase channel capacity.

[0003] In a MIMO system, both the transmitter and the receiver communicate using multiple antennas that can operate simultaneously. MIMO systems usually employ complex signal processing techniques to significantly improve reliability, transmission range, and throughput. The transmitter simultaneously transmits multiple radio frequency signals, and the receiver recovers the data from these signals. Summary of the Invention

[0004] In view of this, embodiments of the present disclosure provide a PUSCH configuration method, apparatus, communication device, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a PUSCH configuration method, wherein the method includes: The method includes configuring different Transmission Configuration Indications (TCIs) for non-coherent joint transmission (NC-JT) of an uplink PUSCH in different antenna panels of a terminal, where the TCIs are associated with beam information, and different TCIs are simultaneously associated with the same transmission resources, where the transmission resources include time domain resources and frequency domain resources, and where different antenna panels perform NC-JT of the PUSCHs by Space Division Multiplexing (SDM).

[0006] In one embodiment, the data transmission layer sets associated with different TCIs are different, where one data transmission layer set includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other.

[0007] In one embodiment, different antenna panels of the terminal transmit a single code word (CW, Code Word) corresponding to one transport block (TB, Transport Block) of the NC-JT of the PUSCH, where one of the CWs is associated with multiple of the data transmission layers, and where the multiple data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets.

[0008] In one embodiment, different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV).

[0009] In one embodiment, different antenna panels of the terminal transmit multiple codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, where one of the CWs corresponds to one of the data transmission layer sets.

[0010] In one embodiment, the terminal uses multiple RVs to realize transmission of different codewords (CWs) of the NC-JT of the PUSCH.

[0011] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using a single Modulation and Coding Scheme (MCS).

[0012] In one embodiment, the different TCIs correspond to the same data transmission layer number.

[0013] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using different MCS.

[0014] In one embodiment, the different TCIs correspond to the same number of data transmission layers, Or, The different TCIs correspond to different numbers of data transmission layers.

[0015] In one embodiment, the maximum number of data transmission layers in the data transmission layer set with which the TCI is associated is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI.

[0016] In one embodiment, the Demodulation Reference Signal (DMRS) port sets associated with different TCIs are different, where one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other.

[0017] In one embodiment, the different TCIs correspond to different Transmission Reception Point (TRP) directions of a base station.

[0018] In one embodiment, the different TCIs are for indicating different quasi-collocation Type D source reference signals, and the quasi-collocation Type D source reference signals are for determining the TRP direction.

[0019] In one embodiment, the TCI comprises: Integrated TCI and Spatial Relation Info (SRI) and A Sounding Reference Signal RESOURCE INDICATOR (SRI).

[0020] In one embodiment, The different aggregated TCIs are carried by different TCI indication fields, Or, The different aggregate TCIs are carried by one TCI indication field.

[0021] In one embodiment, the integrated TCI comprises: Joint TCI and Separate TCI and one of the following:

[0022] In one embodiment, the PUSCH is A PUSCH scheduled by downlink control information (DCI), Scheduling-free Type 1 Configured Grant (CG) PUSCH and and a scheduling-free Type 2 CG PUSCH.

[0023] In one embodiment, the TCI comprises: Radio Resource Control (RRC) signaling; Media Access Control-Control Element (MAC-CE) signaling; and The DCI signaling may be carried in at least one of the following:

[0024] According to a second aspect of an embodiment of the present disclosure, there is provided a physical uplink shared channel (PUSCH) configuration device, comprising: A processing module configured to set different transmission setting indications (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of an uplink PUSCH, where the TCIs are associated with beam information, and where different TCIs are simultaneously associated with the same transmission resource, where the transmission resource includes a time domain resource and a frequency domain resource, and where different antenna panels perform NC-JT of the PUSCH by spatial division multiplexing (SDM).

[0025] In one embodiment, the data transmission layer sets associated with different TCIs are different, where one data transmission layer set includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other.

[0026] In one embodiment, different antenna panels of the terminal transmit a single codeword (CW) corresponding to one transmission block TB of the NC-JT of the PUSCH, where one of the CWs is associated with multiple of the data transmission layers, and where the multiple data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets.

[0027] In one embodiment, different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV).

[0028] In one embodiment, different antenna panels of the terminal transmit multiple codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, where one of the CWs corresponds to one of the data transmission layer sets.

[0029] In one embodiment, the terminal uses multiple RVs to realize transmission of different codewords (CWs) of the NC-JT of the PUSCH.

[0030] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using a single modulation and coding scheme (MCS).

[0031] In one embodiment, the different TCIs correspond to the same data transmission layer number.

[0032] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using different MCS.

[0033] In one embodiment, the different TCIs correspond to the same number of data transmission layers, Or, The different TCIs correspond to different numbers of data transmission layers.

[0034] In one embodiment, the maximum number of data transmission layers in the data transmission layer set with which the TCI is associated is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI.

[0035] In one embodiment, the demodulation reference signal (DMRS) port sets associated with different TCIs are different, where one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other.

[0036] In one embodiment, the different TCIs correspond to different transmit / receive point (TRP) directions of a base station.

[0037] In one embodiment, the different TCIs are for indicating different quasi-collocation Type D source reference signals, and the quasi-collocation Type D source reference signals are for determining the TRP direction.

[0038] In one embodiment, the TCI comprises: Integrated TCI and Spatial Relationship Information (SRI) and a sounding reference signal resource indication (SRI);

[0039] In one embodiment, the different aggregated TCIs are carried by different TCI indication fields or Or, The different aggregate TCIs are carried by one TCI indication field.

[0040] In one embodiment, the integrated TCI comprises: Joint TCI and Separate TCI and one of the following:

[0041] In one embodiment, the PUSCH is a PUSCH scheduled by downlink control information (DCI); Scheduling-free type 1 configured grant (CG) PUSCH and and a scheduling-free Type 2 CG PUSCH.

[0042] In one embodiment, the TCI comprises: Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling.

[0043] According to a third aspect of an embodiment of the present disclosure, there is provided a communications device, comprising: a processor; a memory; and an executable program stored in the memory and executable by the processor, wherein the processor, when executing the executable program, performs steps of a Physical Uplink Shared Channel (PUSCH) configuration method according to any one of claims 1 to 19.

[0044] According to a fourth aspect of an embodiment of the present disclosure, there is provided a storage medium having an executable program stored thereon, the executable program being executed by a processor to achieve steps of a Physical Uplink Shared Channel (PUSCH) configuration method as set forth in any one of claims 1 to 19.

[0045] The embodiments of the present disclosure provide a PUSCH setting method, an apparatus, a communication device, and a storage medium. For the NC-JT of the uplink PUSCH, different TCIs are set for different antenna panels of a terminal, where the TCIs are associated with beam information, and different TCIs are simultaneously associated with the same transmission resource, where the transmission resource includes a time domain resource and a frequency domain resource, and where the different antenna panels use SDM to perform the NC-JT of the PUSCH. In this way, on the one hand, by indicating the beam information of each different antenna panel by different TCIs, the beam information of each antenna panel can be set individually, and the flexibility of the beam setting is improved. On the other hand, by performing the NC-JT of the uplink PUSCH in the SDM manner, the uplink transmission delay in the multi-TRP is reduced by the simultaneous transmission of multiple antenna panels, the throughput is improved, and different antenna panels can be precoded individually, the impact of the transmission environment on the transmission is reduced, and the transmission reliability is improved. By transmitting using the same transmission resource by multiple antenna panels, the transmission resource is saved and the utilization rate of the transmission resource is improved.

[0046] It should be noted that the above general description and the following detailed description are merely illustrative and explanatory and do not limit the present disclosure. [Brief description of the drawings]

[0047] The drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification serve to explain the principles of the embodiments of the present invention. [Figure 1] 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment; [Diagram 2] FIG. 1 is a schematic diagram of an MTRP downlink transmission framework illustrated by an exemplary embodiment. [Diagram 3] FIG. 13 is a schematic diagram of another MTRP downlink transmission framework illustrated by an exemplary embodiment; [Figure 4] FIG. 2 is a schematic diagram of dynamic transmission point selection transmission shown in accordance with an exemplary embodiment; [Diagram 5] FIG. 1 is a schematic diagram of coherent joint transmission as illustrated by an exemplary embodiment; [Figure 6] FIG. 2 is a schematic diagram of non-coherent joint transmission as illustrated by an exemplary embodiment; [Figure 7] 4 is a schematic flowchart of a PUSCH configuration method according to an exemplary embodiment; [Figure 8] 4 is a schematic flowchart of another PUSCH configuration method according to an exemplary embodiment; [Figure 9] FIG. 2 is a schematic diagram of an MTRP uplink SDM transmission framework illustrated by an exemplary embodiment. [Figure 10] FIG. 1 is a schematic diagram of MTRP uplink SDM transmission shown in accordance with an exemplary embodiment. [Figure 11] 4 is a schematic flowchart of another PUSCH configuration method according to an exemplary embodiment; [Figure 12] FIG. 13 is a schematic diagram of another MTRP uplink SDM transmission framework illustrated by an exemplary embodiment; [Figure 13]FIG. 13 is a schematic diagram of another MTRP uplink SDM transmission shown in accordance with an exemplary embodiment; [Figure 14] FIG. 11 is a block diagram of another PUSCH setting device according to an exemplary embodiment; [Figure 15] 1 is a block diagram of an apparatus for PUSCH configuration according to an exemplary embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0048] DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Now, exemplary embodiments will be described in detail, examples of which are illustrated in the drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with embodiments of the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the present invention, as detailed in the appended claims.

[0049] The terms used in the embodiments of the present disclosure are for the purpose of describing particular embodiments, and are not intended to limit the embodiments of the present disclosure. Unless otherwise clearly indicated by the context, the singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims also include the plural forms. In addition, the term "and / or" as used herein refers to and includes any and all possible combinations of one or more associated and listed items.

[0050] It should be understood that, although various information may be described with terms such as first, second, and third in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are used only to distinguish between the same types of information. For example, the first information may be referred to as the second information, and similarly, the second information may be referred to as the first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the term "when" as used herein may be interpreted as "when" or "when" or "in response to determining."

[0051] Please refer to Fig. 1, which is a schematic configuration diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in Fig. 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system can include several terminals 11 and several base stations 12.

[0052] Here, the terminal 11 may refer to a device that provides a voice and / or data connection to a user. The terminal 11 may communicate with one or more core networks via a wireless Radio Access Network (RAN), and the terminal 11 may be an Internet of Things device, such as a sensor device, a mobile phone (also called a "cellular" phone), and a computer with Internet of Things user equipment, such as a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device. For example, the terminal 11 may be a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be an unmanned aerial vehicle device. Alternatively, the terminal 11 may be an in-vehicle device, for example, an electronic control unit having a wireless communication function, or a wireless user equipment device having an external electronic control unit, or the terminal 11 may be a roadside device, for example, a street lamp, a traffic light, or other roadside device having a wireless communication function.

[0053] The base station 12 may be a network side device in a wireless communication system. The wireless communication system may be the 4th generation mobile communication (4G) system, also called a Long Term Evolution (LTE) system. Alternatively, the wireless communication system may be a 5G system, also called a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a system that is a next generation of the 5G system. The radio access network of the 5G system may be called a New Generation-Radio Access Network (NG-RAN). Alternatively, it may be an MTC system.

[0054] Here, the base station 120 may be an evolved base station (eNB) used in a 4G system. Or, the base station 120 may be a base station (gNB) using a centralized distributed framework in a 5G system. When the base station 120 uses a centralized distributed framework, it usually includes a central unit (CU) and at least two distributed units (DU). The central unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Medium Access Control (MAC) layer. The distributed units are provided with a protocol stack of a physical (PHY) layer, and the embodiment of the present disclosure is not limited to a specific implementation form of the base station 12.

[0055] A wireless connection can be established between the base station 12 and the terminal 11 via a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard. Or, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new radio. Or, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

[0056] In some embodiments, an end-to-end (E2E) connection can be established between the terminals 11. For example, in vehicle-to-everything (V2X) Internet communication, vehicle-to-infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication, the like is used in the scenario.

[0057] In some embodiments, the wireless communication system may further include a network management device 13 .

[0058] Each of the base stations 12 is connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC) network. Or, the network management device may be another core network device, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS), etc. The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0059] To improve cell edge coverage and provide more balanced service quality within the service area, coordinated multiple point transmission (CoMP) remains an important technical measure in new radio (NR) systems. From the perspective of network topology, network deployment combining a large number of distributed access points with a baseband centralized processing method is more advantageous in providing balanced user experience speed, and handover delays and signaling overhead are significantly reduced. As frequency bands rise, relatively dense access point deployment is also necessary in terms of ensuring network coverage. Meanwhile, in high frequency bands, with the improvement in the integration of active antenna devices, there is a trend toward modularized active antenna arrays.

[0060] Coordinated multipoint transmission technology can be divided into two types: coherent transmission and non-coherent transmission, depending on the mapping relationship of the transmitted signal to multiple transmit / receive points (TRPs) / antenna panels. Here, in the case of coherent transmission, each data layer is mapped to multiple TRPs / panels via a weighting vector. In the case of non-coherent transmission, each data stream is only mapped to some TRPs / panels. Coherent transmission has higher requirements for synchronization between transmission points and the transmission capacity of the backhaul link, so it is sensitive to many non-ideal factors of real deployment conditions. In contrast, non-coherent transmission is less affected by the above factors, so it is a key consideration for multipoint transmission technology.

[0061] Quasi Co-Location (QCL) means that the large-scale parameters of the channel experienced by the symbols on one antenna port can be inferred from the channel experienced by the symbols on another antenna port, including delay spread, mean delay, Doppler spread, Doppler shift, mean gain, and spatial reception parameters.

[0062] The concept of QCL is introduced with the emergence of cooperative multi-point transmission technology. The multiple sites involved during cooperative multi-point transmission may correspond to multiple geographically different sites (including TRPs) or multiple sectors with different antenna panel orientations. For example, when a terminal receives data from different sites, the spatial differences of each site will result in large-sized channel parameter differences of the receiving links from different sites, such as Doppler frequency shift, delay extension, etc. The large-scale parameters of the channel directly affect the adjustment and optimization of the filter coefficients during channel estimation. Corresponding to signals from different sites, different channel estimation filter parameters must be used to adapt to the corresponding channel propagation characteristics.

[0063] Therefore, the difference in spatial location or angle of each site is transparent to the UE and the CoMP operation itself, but the impact of the above spatial differences on the large-scale parameters of the channel is an important factor that the UE should consider when performing channel estimation and reception detection. When two antenna ports are QCL in the sense of some large-scale parameters, it means that these large-scale parameters of these two ports are the same. Alternatively, if some large-scale parameters of two ports are consistent, the terminal can consider these two ports to be transmitted from the same position (i.e., pseudo-colocation), regardless of whether there is a difference in the actual physical location or orientation of the corresponding antenna panels.

[0064] Considering the possible QCL relationships between various reference signals for some typical application scenarios, and from the perspective of simplifying signaling, NR divides some channel large-scale parameters into the following four types, which are convenient for the system to configure / instruct based on different scenarios: QCL-TypeA: {Doppler frequency shift, Doppler expansion, average delay, delay expansion} - All other large-scale parameters are the same except for the spatial reception parameters. For frequency bands below -6 GHz, spatial reception parameters may not be required. QCL-TypeB: {Doppler frequency shift, Doppler expansion} - For frequency bands below 6 GHz only, there are two cases: QCL-TypeC: {Doppler frequency shift, average delay} QCL-TypeD: {Spatial reception parameters} -As mentioned above, this parameter is mainly intended for frequency bands above 6 GHz, so it is used alone as one QCL type.

[0065] NR Release 15 (Rel-15) specifies that the Demodulation Reference Signal (DMRS) port in each Code Division Multiplexing (CDM) group is located on the QCL.

[0066] A scenario of coordinated multipoint transmission includes one terminal and multiple TRPs, as shown in Figure 2. As shown in Figure 3, the terminal can perform uplink PUSCH transmission in the direction of the TRPs of multiple base stations. The terminal can perform coordinated transmission by adopting a time-division multiplexing (TDM) transmission method. The terminal transmits the same TB of PUSCH to different TRPs of the base station in a time-division manner at different transmission occasions in the time domain. This method has relatively low requirements on the terminal's capabilities, does not need to support the ability to transmit beams simultaneously, and has a large transmission delay.

[0067] For uplink transmission, the PUSCH channels for different TRPs may have significantly different spatial characteristics of the channels they actually pass through, so the QCL-Ds of the PUSCH channels in different transmission directions may be different.

[0068] Coordinated multipoint transmission technology can be broadly divided into two types: coherent transmission and non-coherent transmission, depending on the mapping relationship of the transmitted signals to multiple TRPs / antenna panels.

[0069] In the case of coherent transmission, each data transmission layer is mapped to multiple TRPs / antenna panels involved in cooperative transmission through a weighting vector. If the large-scale parameters of the channels of each TRP / antenna panel are the same and the same frequency source is used, coherent transmission is equivalent to stitching multiple subarrays into a higher-dimensional virtual array, and higher shaping / precoding / multiplexing gains can be obtained. However, in a real deployment environment, this method places higher requirements on synchronization between transmission points and the transmission capacity of the backhaul.

[0070] Non-coherent transmission means that each data stream is only mapped to the port corresponding to the TRP / antenna panel with which the large-scale parameters of the channel match (i.e., the QCL), and different data streams can be mapped to different ports of the QCL, and all coordinated points (multiple TRPs / antenna panels in coordinated transmission) need not be integrated into one virtual array and coordinated for each layer.

[0071] The joint transmission can include Dynamic Point Select (DPS) transmission, Coherent Joint Transmission (C-JT) and Non-Coherent Joint Transmission (NC-JT), etc. As shown in FIG. 4, all data transmission layers corresponding to all codewords in single-point transmission (i.e., DPS transmission) are transmitted through one transmission point, and as shown in FIG. 5, in the case of C-JT, all codewords and layers are transmitted after being jointly precoded through two transmission points, and as shown in FIG. 6, in the NC-JT scheme, the two data transmission layers corresponding to codeword 0 are transmitted from transmission point 1 (TP1, Transmit Point 1), and the two data transmission layers corresponding to codeword 1 are transmitted from TP2.

[0072] In the time division multiplexing (TDM) transmission method, the terminal transmits the same TB of PUSCH to different TRPs of the base station in different transmission occasions in the time domain in a time division manner, resulting in large delay and low throughput. How to improve the reliability and throughput of transmission and effectively reduce the transmission delay in multi-TRP is an issue that needs to be solved urgently.

[0073] As shown in FIG. 7, the present exemplary embodiment provides a PUSCH configuration method, which is executable by a network side device and / or a terminal of a cellular mobile communication system, and includes the following steps:

[0074] In step 701, for NC-JT of an uplink PUSCH, different TCIs are configured for different antenna panels of a terminal, where the TCIs are associated with beam information, and different TCIs are simultaneously associated with the same transmission resource, where the transmission resource includes a time domain resource and a frequency domain resource, and where different antenna panels perform NC-JT of the PUSCH using SDM.

[0075] This embodiment can be applied to, but is not limited to, a network side device such as a core network device, an access network device, and / or a terminal. Here, the terminal may include a handheld terminal and / or a non-handheld terminal, etc. Here, it is not limited.

[0076] The terminal may be a UE capable of simultaneously achieving coordinated multi-point transmission in the direction of the TRPs of multiple base stations. The UE can simultaneously achieve uplink coordinated multi-point transmission in the direction of the TRPs of multiple base stations. CoMP (Coordinated Multiple Points Transmission / Reception) refers to multiple geographically separated TRPs coordinating to transmit data to one terminal or receive data transmitted from one terminal. Here, the TRP may include an antenna panel of a base station, etc.

[0077] For example, the UE may support simultaneous NC-JT of PUSCH to N TRPs of the base station through N antenna panels, where N is a positive integer equal to or greater than 2. Each antenna panel of the UE may correspond to one TRP of the base station.

[0078] Here, one TCI can be set for each antenna panel of the terminal. The TCI indicates beam information of the beam used when the corresponding antenna panel performs NC-JC of PUSH. Here, the beam information indicates at least the beam direction, etc. Here, the TCI can be the TCI state.

[0079] Setting different TCIs on different antenna panels of the terminal may be setting different TCIs on each antenna panel of the terminal by a network side device. Setting different TCIs on different antenna panels of the terminal may be determining different TCIs for each antenna panel by the terminal; Each antenna panel can perform NC-JT by performing an individual precoding process using a precoding matrix corresponding to each antenna panel, i.e., no coordinated coding is performed for the antenna panels.

[0080] In one embodiment, the TCI comprises: Integrated TCI and Spatial Relationship Information (SRI) and a sounding reference signal resource indication (SRI);

[0081] The TCI may be a Unified TCI. If a Unified TCI is not configured, the SRI may be used.

[0082] When the TRP has beam consistency, an integrated TCI can be adopted. The integrated TCI shares an uplink-downlink beam with multiple channels and signals, and multiple CCs use a common beam. The beam consistency of the TRP can include that the downlink receiving beam and the uplink transmitting beam of the TRP have reciprocity, that is, the downlink receiving beam and the uplink transmitting beam have beam correspondence. When there is beam consistency, the direction of the uplink beam is also the direction of the downlink beam.

[0083] The base station may indicate the TCI to the terminal using spatial relation information (SRI).

[0084] The base station may carry the TCI by a sounding reference signal resource indication (SRI). The sounding reference signal resource indication is for indicating an uplink transmission analog beam direction corresponding to an SRS resource specifically used for a PUSCH for uplink transmission in codebook transmission, and a transmission of an SRS resource specifically used for a PUSCH for a particular transmission as a precoding of an uplink PUSCH, i.e., a transmission beam direction of a different layer, in non-codebook transmission. The reserved bit indicated by the sounding reference signal resource may be used to carry the TCI. Different sounding reference signal resource indications may be transmitted for different antenna panels. The TCI in the sounding reference signal resource indication may be directly associated with the antenna panel that received the sounding reference signal resource indication.

[0085] In one embodiment, the integrated TCI comprises: Joint TCI and Separate TCI and one of the following:

[0086] The different TCIs corresponding to the different antenna panels may be joint TCIs or separate TCIs.

[0087] The unified TCI can include a joint TCI state and a separate TCI, where the joint TCI is used to simultaneously indicate an uplink transmit beam and a downlink receive beam, and the separate TCI is used to indicate an uplink transmit beam or a downlink receive beam.

[0088] In one embodiment, the different TCIs correspond to different transmit / receive point (TRP) directions of a base station.

[0089] The beams instructed by the TCI can be transmitted at the same time, for example in the same slot, using the same time and frequency domain resources. The TCI can instruct beams in different directions to enable different antenna panels to perform NC-JT of PUSCH using SDM.

[0090] In one embodiment, the different TCIs are for indicating different quasi-collocation Type D source reference signals, and the quasi-collocation Type D source reference signals are for determining the TRP direction.

[0091] The quasi-collocated Type-D source reference signal (QCL Type-D source RS) may include at least one of a Channel State Information Reference Signal (CSI-RS), a Synchronous Signal / PBCH Block (SSB), and a Sounding Reference Signal (SRS).

[0092] The base station and the UE may interact with different quasi-co-location Type-D source reference signals in different beams to determine different beams that can be communicated. One quasi-co-location Type-D source reference signal has an association relationship with one beam. The association relationship may be a one-to-one correspondence relationship. Here, the directions of different beams may be different.

[0093] The TCI can direct a beam in one direction using a quasi-collocated Type D source reference signal.

[0094] In one embodiment, The different aggregated TCIs are carried by different TCI indication fields, Or, The different aggregate TCIs are carried by one TCI indication field.

[0095] A TCI may be carried by multiple separate TCI indication fields, for example, the TCI may be indicated by two separate TCI fields, with each TCI indication field carrying one TCI, i.e., each TCI indication field indicating one beam direction.

[0096] Multiple TCIs may be carried by one TCI indication field, i.e., one TCI code point. For example, two TCIs may be carried by one TCI indication field, i.e., one TCI indication field may indicate a first TRP beam direction and a second TRP beam direction.

[0097] In one embodiment, the PUSCH is a PUSCH scheduled by downlink control information (DCI); Scheduling-free type 1 configured grant (CG) PUSCH and and a scheduling-free Type 2 CG PUSCH.

[0098] The PUSCH may be scheduled by a single DCI, and the DCI may be transmitted on the PDCCH resources.

[0099] Configured Grant CG PUSCH is divided into two types: type 1 and type 2. Here, type 1 CG PUSCH can set all parameters by RRC signaling, and can be transmitted periodically once set. Type 2 CG PUSCH can set some parameters by RRC signaling, and is activated / deactivated by downlink control information (DCI), other parameters must be given in the activation DCI, and can be used periodically after activation.

[0100] In one embodiment, the TCI comprises: Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling.

[0101] The base station may convey the TCI through different signaling to improve the flexibility of the TCI indication.

[0102] In this way, on the one hand, by instructing the beam information of different antenna panels by different TCIs, the beam information of each antenna panel can be set individually, and the flexibility of beam setting is improved. On the other hand, by performing NC-JT of uplink PUSCH using SDM, multiple antenna panels transmit simultaneously, reducing the uplink transmission delay in multi-TRP and improving the throughput, and different antenna panels can be precoded individually, reducing the impact of the transmission environment on transmission and improving the transmission reliability. Multiple antenna panels transmit using the same transmission resource, saving transmission resources and improving the utilization rate of transmission resources.

[0103] In one embodiment, the data transmission layer sets associated with different TCIs are different, where one data transmission layer set includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other.

[0104] The data transmission layer set associated with the TCI may be the data transmission layer set transmitted by the antenna panel associated with the TCI. The data transmission layer set associated with each TCI is different, i.e., the data transmission layer transmitted by each antenna panel is different.

[0105] For example, a terminal has two antenna panels, and a data transmission layer set of a TCI corresponding to one antenna panel includes two data transmission layers, Layer 1 and Layer 2, and a data transmission layer set of a TCI corresponding to the other antenna panel includes two data transmission layers, Layer 3 and Layer 4. In this way, one antenna panel can be used to transmit the two data transmission layers, Layer 1 and Layer 2, and the other antenna panel can be used to transmit the two data transmission layers, Layer 3 and Layer 4.

[0106] In one embodiment, the maximum number of data transmission layers in the data transmission layer set with which the TCI is associated is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI.

[0107] The data transmission layers that can be supported by different antenna panels may be different or the same. Because the transmissions of different antenna panels use the data transmission layers corresponding to their own TCIs, the maximum number of data transmission layers in the data transmission layers associated with a TCI may be the maximum number of data transmission layers that can be supported by the antenna panel corresponding to the TCI.

[0108] Exemplarily, the terminal may report to a network side device such as a base station the maximum number of ports included in the maximum source reference signal (SRS) resource supported by different antenna panels of the terminal (the network side device may determine the maximum number of data transmission layers that can be supported by the antenna panel based on the maximum number of ports. For example, the maximum number of ports is determined as the maximum number of data transmission layers that can be supported by the antenna panel) or the maximum number of data transmission layers that can be supported by the UE. When instructing the terminal on the TCI, the network side device may determine the number of data transmission layers in the data transmission layer set based on the maximum number of data transmission layers that can be supported by the antenna panel.

[0109] For example, the maximum numbers of data transmission layers that can be supported by two antenna panels (antenna panel 1 and antenna panel 2) of a UE are N_p1 and N_p2, respectively. In this case, the maximum number of data transmission layers in the data transmission layer set associated with the TCI corresponding to antenna panel 1 is less than or equal to N_p1, and the maximum number of data transmission layers in the data transmission layer set associated with the TCI corresponding to antenna panel 2 is less than or equal to N_p2.

[0110] As shown in FIG. 8, the present exemplary embodiment provides a PUSCH configuration method, which is executable by a network side device and / or a terminal of a cellular mobile communication system, and includes the following steps:

[0111] In step 801, different antenna panels of the terminal transmit a single codeword (CW) corresponding to one TB of the NC-JT of the PUSCH, where one of the CWs is associated with multiple of the data transmission layers, and where the multiple data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets.

[0112] Here, one TB can obtain one code word (CW) through data processing. The data processing can include code block division, channel coding, rate matching, code block serial concatenation, etc. The CW of one TB can be mapped to different data transmission layers in the same time-frequency resource of the same slot. It is transmitted by the terminal through multiple antenna panels. Different TCIs indicate the data transmission layers transmitted by different antenna panels.

[0113] For example, as shown in FIG. 9, a terminal has two antenna panels. The data transmission layer set of the TCI associated with the antenna panel 1 includes two data transmission layers, namely, data transmission layer 1 and data transmission layer 2, and the data transmission layer set of the TCI associated with the antenna panel 2 includes two data transmission layers, namely, data transmission layer 3 and data transmission layer 4. The CW of one TB can be mapped to four data transmission layers, namely, data transmission layer 1, data transmission layer 2, data transmission layer 3, and data transmission layer 4, that is, the data of the four data transmission layers constitute one CW. During transmission, the antenna panel 1 transmits data of the data transmission layer 1 and the data transmission layer 2, and the antenna panel 2 transmits data of the data transmission layer 3 and the data transmission layer 4. Here, one antenna panel corresponds to one TRP. Each TRP can correspond to one beam direction. The beam direction of each TRP is different.

[0114] In this way, multiple data transmission layers of one TB are transmitted by multiple antenna panels, and each antenna panel corresponds to a TRP with a different beam direction, thereby realizing SDM. Simultaneous transmission by multiple antenna panels reduces the uplink transmission delay in multi-TRP and improves throughput.

[0115] In one embodiment, different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV).

[0116] As shown in Figure 10, one TB corresponds to one CW. One TB can obtain one CW by performing rate matching based on one redundancy version. Rate matching is achieved by storing coded bits in a cyclic cache and reading them out in order from the cyclic cache based on the redundancy version for each transmission.

[0117] The RV may be included in the DCI by the network side and instructed to the terminal.

[0118] In one embodiment, a data transmission layer can be mapped to a CW based on the channel conditions of multiple TRPs, i.e., a rank assignment is performed based on the channel conditions of multiple TRPs.

[0119] For example, in a multiple TRP scenario, more data transmission layers can be configured for TRPs where the channel conditions are higher than a predetermined threshold, and fewer data transmission layers can be configured for TRPs where the channel conditions are lower than a predetermined threshold.

[0120] In the related art, in the case of MTRP, the number of RANs set for each TRP is fixed. For example, when RANK=3, i.e., for three data transmission layers, DMRS allocation can only support 2+1 RANK allocation in two TRP directions, for example, 1+2 RANK allocation (i.e., TRP1 sets one data transmission layer, and TRP2 sets two data transmission layers) is not supported, and when RANK=4, only 2+2 RANK allocation is supported, for example, 1+3 or 3+1 RANK allocation is not supported.

[0121] Here, RANK allocation is not limited to the RANK allocation method in the related art, and can be performed based on the channel conditions of multiple TRPs. For example, when RANK=4, 2+2 RANK allocation is supported, and 1+3 or 3+1 RANK allocation can also be adopted. In this way, the flexibility of RANK allocation is improved and it can be adapted to the channel conditions of different TRPs.

[0122] As shown in FIG. 11 , the present exemplary embodiment provides a PUSCH configuration method, which is executable by a network side device and / or a terminal of a cellular mobile communication system, and includes the following steps:

[0123] In step 1101, different antenna panels of the terminal transmit multiple codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, where one of the CWs corresponds to one of the data transmission layer sets.

[0124] Here, one TB can obtain M code words (CWs) through data processing, where M is a positive integer equal to or greater than 2. Here, the data processing can include code block division, channel coding, rate matching, code block serial concatenation, etc. Each CW protects a copy of one TB.

[0125] Each CW can be mapped and combined into one data transmission layer. The data transmission layer set corresponding to each CW can be different. M codewords can be transmitted by a terminal through M antenna panels. Different TCIs indicate that different antenna panels transmit corresponding data transmission layer sets.

[0126] For example, as shown in FIG. 12, a terminal has two antenna panels. The data transmission layer set 1 of the TCI associated with the antenna panel 1 includes two data transmission layers, namely, data transmission layer 1 and data transmission layer 2, and the data transmission layer set 2 of the TCI associated with the antenna panel 2 includes two data transmission layers, namely, data transmission layer 3 and data transmission layer 4. The data transmission layer set 1 is different from the data transmission layer set 2. One TB obtains CW0 and CW1 through data processing. The CW0 can be matched to the data transmission layer set 1, that is, the data of the data transmission layer set 1 constitutes the CW0. The CW1 can be matched to the data transmission layer set 2, that is, the data of the data transmission layer set 2 constitutes the CW1. When the terminal performs uplink transmission, the antenna panel 1 transmits data of the data transmission layer set 1, and the antenna panel 2 transmits data of the data transmission layer set 2. Here, one antenna panel corresponds to one TRP. Each TRP can correspond to one beam direction. The beam directions of each TRP are different.

[0127] In this way, multiple CWs of one TB are transmitted by multiple antenna panels, and each antenna panel corresponds to a TRP with a different beam direction, thereby realizing SDM, and simultaneous transmission by multiple antenna panels reduces uplink transmission delay in multi-TRP and improves throughput, and simultaneous transmission of two copies of one TB improves the reliability of data transmission.

[0128] In one embodiment, the terminal uses multiple RVs to realize transmission of different codewords (CWs) of the NC-JT of the PUSCH.

[0129] As shown in FIG. 13, the same TB can have different CWs due to the rate matching operation corresponding to different RVs.

[0130] One TB can obtain multiple different CWs by performing rate matching based on multiple redundancy versions.

[0131] The RV may be included in the DCI by the network side and instructed to the terminal.

[0132] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using a single modulation and coding scheme (MCS).

[0133] In one embodiment, the different TCIs correspond to the same data transmission layer number.

[0134] A single MCS may be included in DCI by the network side and instructed to the terminal.

[0135] A single MCS can be used to determine multiple CWs using one TB, where each CW can correspond to one TRP. That is, multiple antenna panels correspond to one MCS. In this way, the number of bits of the multiple CWs generated is the same, and the number of RANKs of the TRPs corresponding to each CW is the same. That is, the number of data transmission layers corresponding to each CW is the same. The uplink transmission code rate and throughput are further increased, and the blocking resistance capability is improved. The single MCS may be indicated by the DCI MCS indication field.

[0136] For example, as shown in FIG. 11, a terminal has two antenna panels, each corresponding to two TRPs. The two antenna panels correspond to one MCS, and one TB uses the same MCS to determine CW0 and CW1. In this way, since the number of corresponding bits of CW0 and CW1 is the same, the number of RANKs corresponding to different TRPs of CW0 and CW1 is also the same. The number of RANKs of TRPs corresponding to each CW is the same. That is, the number of data transmission layers corresponding to each CW is the same.

[0137] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using different MCS.

[0138] In one embodiment, Whether the different TCIs correspond to the same number of data transmission layers; Or, The different TCIs correspond to different numbers of data transmission layers.

[0139] Multiple MCSs may be included in DCI by the network side and instructed to the terminal.

[0140] Each MCS among the multiple MCSs can be used to determine one CW using one TB, where each CW can correspond to one TRP. That is, each antenna panel corresponds to one MCS. The RV corresponding to each MCS may be different. Thus, the number of bits of the multiple CWs generated with different MCSs may be the same or different.

[0141] When the number of bits of multiple CWs is the same, the RANK number of the TRP corresponding to each CW is the same, that is, the number of data transmission layers corresponding to each CW is the same.

[0142] When the number of bits of multiple CWs is different, the RANK number of the TRP corresponding to each CW may be different, that is, the number of data transmission layers corresponding to each CW may be different. The RANK number can be set for different CWs according to the data amount of different CWs. A fixed RANK number is not used and set. The flexibility of RANK number allocation is improved.

[0143] For example, a terminal has two antenna panels, each corresponding to two TRPs. The two antenna panels each correspond to one MCS, and one TB uses different MCSs to determine CW0 and CW1. CW0 and CW1 may have the same or different corresponding bit numbers. If the bit numbers of CW0 and CW1 are the same, the RANK numbers corresponding to different TRPs of CW0 and CW1 are also the same. If the bit numbers of CW0 and CW1 are different, the RANK numbers corresponding to different TRPs of CW0 and CW1 may be the same or different. That is, the number of data transmission layers corresponding to each CW is the same.

[0144] In one embodiment, the demodulation reference signal (DMRS) port sets associated with different TCIs are different, where one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other.

[0145] For NC-JT, each TCI has a different associated DMRS port set, ie, each antenna panel has different DMRS ports that perform NC-JT using SDM on the same time domain and frequency domain resources.

[0146] Below, one specific example is provided in combination with any of the above embodiments.

[0147] Based on the unified TCI framework, N TCI states suitable for simultaneous transmission can be configured in the terminal, and can be commonly indicated to the terminal through N different joint TCIs or N separate uplink TCIs (separate UL TCIs) depending on whether MP / MTRP beam consistency is established. Here, N may be 2. That is, there can be two TCIs, TCI1 and TCI2. Each TCI corresponds to the transmit / receive beam of one antenna panel of the terminal and faces one transmit TRP direction. Each TCI includes a different QCL Type-D source RS, and the terminal receives using an antenna panel corresponding to the QCL Type-D source RS included in the TCI.

[0148] If the integrated TCI is not configured, it falls back to the 3GPP release 15 / 16 (R15 / 16) suggested instructions and uses spatialRelationInfo1 / 2 as indicated by the SRI combination.

[0149] The number of data transmission layers actually supported by each TCI should be considered according to the terminal capability. Based on the maximum number of ports included in the maximum SRS resources supported by different panels reported by the terminal, the maximum number of supported data transmission layers may be different, that is, the maximum number of data transmission layers supported by different antenna panels is N_p1 and N_p2 for panel1 and panel2, respectively.

[0150] SDM transmission based on single DCI (S-DCI) can realize NC-JT transmission of uplink MTRP with the following scheme.

[0151] Scheme SDM-1: As shown in Figure 9, One TB of data is transmitted on different layers in the same time-frequency resource of the same slot, and each TCI is associated with one data transmission layer or multiple data transmission layers. Each TCI is associated with a corresponding set of assigned DMRS ports or port groups.

[0152] A single RV realizes the transmission of a single CW, and the coded bits are transmitted on different data transmission layers.

[0153] Maximum number of data transmission layers supported: 4 layers.

[0154] It can support option-1, which is limited to the current protocol's CW to data transmission layer allocation rule, or option-2, which is a RANK imbalance allocation rule that better adapts to MTRP channel conditions; The number of data transmission layers corresponding to TCI1 does not exceed N_p1, and the number of data transmission layers corresponding to TCI2 does not exceed N_p2.

[0155] Scheme SDM-2: As shown in Figure 12, One TB of data is transmitted in two CWs on different layers in the same time-frequency resource of the same slot, and each TCI is associated with one CW and one or more corresponding data transmission layers. Each TCI is associated with a set of assigned corresponding DMRS ports or port groups; Multi-CW transmission is realized with multiple RVs, and each coded bit is transmitted on a different corresponding data transmission layer.

[0156] Maximum number of data transmission layers supported: 4 layers.

[0157] A single MCS is used.

[0158] The number of data transmission layers corresponding to TCI1 does not exceed N_p1, and the number of data transmission layers corresponding to TCI2 does not exceed N_p2.

[0159] The uplink transmission code rate and throughput are further increased, and the anti-blockage capability is improved.

[0160] Scheme SDM-3: As shown in Figure 12, One TB of data is transmitted in two CWs on different layers in the same time-frequency resource of the same slot, and each TCI is associated with one CW and one or more corresponding data transmission layers. Each TCI is associated with a set of assigned corresponding DMRS ports or port groups; Multi-CW transmission is realized with multiple RVs, and each coded bit is transmitted on a different corresponding data transmission layer.

[0161] Maximum number of data transmission layers supported: 4 layers.

[0162] Different TCIs are associated with different MCSs.

[0163] Allows support for unbalanced allocation of RANK among TRPs, The number of data transmission layers corresponding to TCI1 does not exceed N_p1, and the number of data transmission layers corresponding to TCI2 does not exceed N_p2.

[0164] An embodiment of the present invention further provides a PUSCH setting apparatus, as shown in FIG. 14, applied to a network side device and / or terminal of a cellular mobile radio communication, where the apparatus 100 comprises: The present invention includes a processing module 100 configured to set different transmission setting indications (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of an uplink PUSCH, where the TCIs are associated with beam information, and different TCIs are simultaneously associated with the same transmission resource, where the transmission resource includes a time domain resource and a frequency domain resource, and where different antenna panels perform NC-JT of the PUSCH by spatial division multiplexing (SDM).

[0165] In one embodiment, the data transmission layer sets associated with different TCIs are different, where one data transmission layer set includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other.

[0166] In one embodiment, different antenna panels of the terminal transmit a single codeword (CW) corresponding to one transmission block TB of the NC-JT of the PUSCH, where one of the CWs is associated with multiple of the data transmission layers, and where the multiple data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets.

[0167] In one embodiment, different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV).

[0168] In one embodiment, different antenna panels of the terminal transmit multiple codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, where one of the CWs corresponds to one of the data transmission layer sets.

[0169] In one embodiment, the terminal uses multiple RVs to realize transmission of different codewords (CWs) of the NC-JT of the PUSCH.

[0170] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using a single modulation and coding scheme (MCS).

[0171] In one embodiment, the different TCIs correspond to the same data transmission layer number.

[0172] In one embodiment, different antenna panels of the terminal perform NC-JT of the PUSCH using different MCS.

[0173] In one embodiment, the different TCIs correspond to the same number of data transmission layers, Or, The different TCIs correspond to different numbers of data transmission layers.

[0174] In one embodiment, the maximum number of data transmission layers in the data transmission layer set with which the TCI is associated is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI.

[0175] In one embodiment, the demodulation reference signal (DMRS) port sets associated with different TCIs are different, where one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other.

[0176] In one embodiment, the different TCIs correspond to different transmit / receive point (TRP) directions of a base station.

[0177] In one embodiment, the different TCIs are for indicating different quasi-collocation Type D source reference signals, and the quasi-collocation Type D source reference signals are for determining the TRP direction.

[0178] In one embodiment, the TCI comprises: Integrated TCI and Spatial Relationship Information (SRI) and a sounding reference signal resource indication (SRI);

[0179] In one embodiment, the different aggregated TCIs are carried by different TCI indication fields or Or, The different aggregate TCIs are carried by one TCI indication field.

[0180] In one embodiment, the integrated TCI comprises: Joint TCI and Separate TCI and one of the following:

[0181] In one embodiment, the PUSCH is a PUSCH scheduled by downlink control information (DCI); Scheduling-free type 1 configured grant (CG) PUSCH and and a scheduling-free Type 2 CG PUSCH.

[0182] In one embodiment, the TCI comprises: Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling.

[0183] In an exemplary embodiment, the processing module 100 may be implemented by one or more central processors (CPU, Central Processing Unit), graphics processors (GPU, Graphics Processing Unit), baseband processors (BP, Baseband Processor), application specific integrated circuits (ASIC, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLD, Programmable Logic Devices), complex programmable logic devices (CPLD, Complex Programmable Logic Devices), field programmable gate arrays (FPGA, Field Programmable Gate Arrays), general purpose processors, controllers, microcontrollers (MCU, Micro Controller Units), microprocessors, or other electronic components to perform the above-mentioned methods.

[0184] 15 is a block diagram of an apparatus 3000 for PUSCH configuration shown in accordance with an exemplary embodiment. For example, the apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0185] Referring to FIG. 15, the device 3000 may include one or more components: a processing component 3002, a memory 3004, a power component 3006, a multimedia component 3008, an audio component 3010, an input / output (I / O) interface 3012, a sensor component 3014, and a communication component 3016.

[0186] The processing component 3002 typically controls the overall operation of the device 3000, such as operations related to display, phone calls, data communication, camera operation, and recording operations. The processing component 3002 may include one or more processors 3020 for executing instructions to complete all or some steps of the above method. It should be noted that the processing component 3002 may include one or more modules to facilitate interaction with other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the processing component 3002 and the multimedia component 3008.

[0187] The memory 3004 is configured to store various types of data to support operation on the device 3000. Examples of these data include instructions for any application programs or methods for operating on the device 3000, contact data, phone book data, messages, images, videos, etc. The memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0188] The power component 3006 provides power to the various components of the device 3000. The power component 3006 can include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power for the device 3000.

[0189] The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensors can detect the boundaries of touch or slide operations as well as the duration and pressure associated with the touch or slide operations. In some embodiments, the multimedia component 3008 includes a front camera and / or a rear camera. When the device 3000 is in an operation mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or can have a focal length and optical zoom capability.

[0190] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC) configured to receive external audio signals when the device 3000 is in an operation mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further includes a speaker for outputting audio signals.

[0191] The I / O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0192] The sensor component 3014 includes one or more sensors to provide various aspects of the status assessment of the device 3000. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of a component, such as the display and keypad of the device 3000, and can further detect the position change of the device 3000 or one of its components, the presence or absence of contact between the user and the device 3000, the orientation and position or acceleration / deceleration of the device 3000, and the temperature change of the device 3000. The sensor component 3014 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 3014 can further include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 3014 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0193] The communication component 3016 is configured to facilitate wired or wireless communication between the device 3000 and other devices. The device 3000 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0194] In an exemplary embodiment, the apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0195] In an exemplary embodiment, a non-transitory computer readable storage medium containing instructions, such as a memory 3004 containing instructions, may be provided, which may be executed by the processor 3020 of the device 3000 to complete the method. For example, the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device.

[0196] Those skilled in the art may easily conceive other implementations of the present disclosure after studying the specification and practicing the invention disclosed in the specification. This application is intended to cover any modifications, uses or variations of the present disclosure, which modifications, uses or variations follow the general principles of the present disclosure and include common knowledge or commonly used technical means in the art that are not disclosed in the present disclosure. The specification and examples are considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0197] It should be noted that the present disclosure is not limited to the exact structure described above and illustrated in the drawings, and various modifications and variations can be made without departing from the scope of the present disclosure, which is limited only by the scope of the appended claims.

Claims

1. A physical uplink shared channel (PUSCH) configuration method, comprising: The method includes the steps of: configuring different transmission configuration indications (TCIs) for non-coherent joint transmission (NC-JT) of an uplink PUSCH in different antenna panels of a terminal, the TCIs being associated with beam information, different TCIs being associated with the same transmission resource at the same time, the transmission resource including a time domain resource and a frequency domain resource, and the different antenna panels performing NC-JT of the PUSCH by space division multiplexing (SDM); PUSH setting method.

2. The data transmission layer sets associated with the different TCIs are different, one of the data transmission layer sets includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other; The PUSCH setting method according to claim 1 .

3. Different antenna panels of the terminal transmit a single codeword (CW) corresponding to one transmission block (TB) of the NC-JT of the PUSCH, one of the CWs is associated with a plurality of the data transmission layers, and the plurality of data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets; The PUSCH setting method according to claim 2.

4. Different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV); The PUSCH setting method according to claim 3.

5. Different antenna panels of the terminal transmit a plurality of codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, and one of the CWs corresponds to one of the data transmission layer sets; The PUSCH setting method according to claim 2.

6. The terminal realizes transmission of different codewords (CWs) of the NC-JT of the PUSCH using multiple RVs. The PUSCH setting method according to claim 5.

7. Different antenna panels of the terminal perform NC-JT of the PUSCH using a single modulation and coding scheme (MCS); The PUSCH setting method according to claim 5.

8. The different TCIs correspond to the same number of data transmission layers; The PUSCH setting method according to claim 7.

9. Different antenna panels of the terminal perform NC-JT of the PUSCH using different MCSs; The PUSCH setting method according to claim 5.

10. Whether the different TCIs correspond to the same number of data transmission layers; Or, Different TCIs correspond to different numbers of data transmission layers; The PUSCH setting method according to claim 5.

11. the maximum number of data transmission layers in the data transmission layer set associated with the TCI is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI; The PUSCH setting method according to claim 2.

12. The demodulation reference signal (DMRS) port sets associated with different TCIs are different, one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other. A PUSH setting method according to any one of claims 1 to 11.

13. Different TCIs correspond to different transmission / reception point (TRP) directions of a base station; A PUSH setting method according to any one of claims 1 to 11.

14. The different TCIs are for indicating different quasi-collocation type D source reference signals, and the quasi-collocation type D source reference signals are for determining the TRP direction. The PUSCH setting method according to claim 13.

15. The TCI is Integrated TCI; Spatial Relationship Information (SRI); a sounding reference signal resource indication (SRI); A PUSH setting method according to any one of claims 1 to 11.

16. The different aggregated TCIs are carried by different TCI indication fields, Or, The different aggregated TCIs are carried by one TCI indication field; The PUSCH setting method according to claim 15.

17. The integrated TCI comprises: Joint TCI; Separate TCI; The PUSCH setting method according to claim 15.

18. The PUSCH includes: A PUSCH scheduled by downlink control information (DCI); A scheduling-free type 1 configured grant (CG) PUSCH; and and a scheduling-free type 2 CG PUSCH; A PUSH setting method according to any one of claims 1 to 11.

19. The TCI is Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling; A PUSH setting method according to any one of claims 1 to 11.

20. A physical uplink shared channel (PUSCH) configuration device, comprising: a processing module configured to set different transmission configuration indications (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of an uplink PUSCH, the TCIs being associated with beam information, different TCIs being associated with the same transmission resource at the same time, the transmission resource including a time domain resource and a frequency domain resource, and the different antenna panels performing NC-JT of the PUSCH by space division multiplexing (SDM); PUSH setting device.

21. The data transmission layer sets associated with the different TCIs are different, one of the data transmission layer sets includes one or more data transmission layers, and the data transmission layers of the different data transmission layer sets are different from each other; The PUSCH setting device according to claim 20.

22. Different antenna panels of the terminal transmit a single codeword (CW) corresponding to one transmission block (TB) of the NC-JT of the PUSCH, one of the CWs is associated with a plurality of the data transmission layers, and the plurality of data transmission layers associated with one of the CWs belong to at least two of the data transmission layer sets; The PUSCH setting device according to claim 21.

23. Different antenna panels of the terminal transmit the single codeword (CW) of the NC-JT of the PUSCH using a single redundancy version (RV); The PUSCH setting device according to claim 22.

24. Different antenna panels of the terminal transmit a plurality of codewords (CWs) corresponding to one TB of the NC-JT of the PUSCH, and one of the CWs corresponds to one of the data transmission layer sets; The PUSCH setting device according to claim 21.

25. The terminal realizes transmission of different codewords (CWs) of the NC-JT of the PUSCH using multiple RVs. The PUSCH setting device according to claim 24.

26. Different antenna panels of the terminal perform NC-JT of the PUSCH using a single modulation and coding scheme (MCS); The PUSCH setting device according to claim 24.

27. The different TCIs correspond to the same number of data transmission layers; The PUSCH setting device according to claim 26.

28. Different antenna panels of the terminal perform NC-JT of the PUSCH using different MCSs; The PUSCH setting device according to claim 24.

29. Whether the different TCIs correspond to the same number of data transmission layers; Or, Different TCIs correspond to different numbers of data transmission layers; The PUSCH setting device according to claim 24.

30. the maximum number of data transmission layers in the data transmission layer set associated with the TCI is the maximum number of data transmission layers supported by the antenna panel corresponding to the TCI; The PUSCH setting device according to claim 21.

31. The demodulation reference signal (DMRS) port sets associated with different TCIs are different, one DMRS port set includes one or more DMRS ports, and the DMRS ports in the different DMRS port sets are different from each other. A PUSCH setting device according to any one of claims 20 to 30.

32. Different TCIs correspond to different transmission / reception point (TRP) directions of a base station; A PUSCH setting device according to any one of claims 20 to 30.

33. The different TCIs are for indicating different quasi-collocation type D source reference signals, and the quasi-collocation type D source reference signals are for determining the TRP direction. The PUSCH setting device according to claim 32.

34. The TCI is Integrated TCI; Spatial Relationship Information (SRI); a sounding reference signal resource indication (SRI); A PUSCH setting device according to any one of claims 20 to 30.

35. The different aggregated TCIs are carried by different TCI indication fields, Or, The different aggregated TCIs are carried by one TCI indication field; The PUSCH setting device according to claim 34.

36. The integrated TCI comprises: Joint TCI; Separate TCI; The PUSCH setting device according to claim 34.

37. The PUSCH includes: A PUSCH scheduled by downlink control information (DCI); A scheduling-free type 1 configured grant (CG) PUSCH; and and a scheduling-free type 2 CG PUSCH; A PUSCH setting device according to any one of claims 20 to 30.

38. The TCI is Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling; A PUSCH setting device according to any one of claims 20 to 30.

39. 1. A communications device, comprising: A processor, a memory, and an executable program stored in the memory and executable by the processor, When the processor executes the executable program, the processor performs steps of a Physical Uplink Shared Channel (PUSCH) configuration method according to any one of claims 1 to 19. Communication devices.

40. A storage medium on which an executable program is stored, When the executable program is executed by a processor, steps of a Physical Uplink Shared Channel (PUSCH) configuration method according to any one of claims 1 to 19 are realized. storage medium.

Citation Information

Patent Citations

  • User terminal and wireless communication method

    WO2020194741A1