Physical uplink shared channel configuration method, apparatus, communication device and storage medium
The configuration of TCIs for non-coherent joint transmission across MIMO antenna panels addresses the limitations of coherent joint transmission, enhancing beam flexibility, reducing delay, and improving throughput and reliability in multi-TRP systems.
Patent Information
- Application Number
- JP2024563088
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-04-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2042-04-28
AI Technical Summary
Existing MIMO systems face challenges in improving transmission reliability, range, and throughput due to high synchronization requirements and backhaul limitations in coherent joint transmission, leading to increased transmission delay and resource inefficiency in multi-TRP scenarios.
Configuring different Transmission Configuration Indications (TCIs) for non-coherent joint transmission (NC-JT) of uplink PUSCH across different antenna panels, utilizing beam information and spatial division multiplexing (SDM) to enable simultaneous transmission by multiple antenna panels, with individual precoding and flexible beam settings.
This approach enhances beam configuration flexibility, reduces uplink transmission delay, improves throughput, and increases transmission reliability by allowing simultaneous transmission across multiple antenna panels while optimizing resource utilization.
Smart Images

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Abstract
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 method, apparatus, communication device and storage medium for configuring a physical uplink shared channel (PUSCH). [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 receiver in order to increase channel capacity.
[0003] In a MIMO system, both the transmitter and receiver communicate using multiple antennas that can operate simultaneously. MIMO systems typically employ complex signal processing techniques to significantly improve reliability, range, and throughput. The transmitter simultaneously sends 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 PUSCH 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 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) corresponding to one transport block (TB) of the NC-JT of the PUSCH, where one CW is associated with multiple data transmission layers, and where the multiple data transmission layers associated with one CW 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 CW 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 number of data transmission layers.
[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 Or, 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 associated with the TCI 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 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 Or, The different aggregated 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, wherein the TCI is: Radio Resource Control (RRC) signaling; Media Access Control-Control Element (MAC-CE) signaling; and and DCI signaling.
[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 configuration instructions (TCIs) to 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).
[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 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 CW is associated with multiple data transmission layers, and where the multiple data transmission layers associated with one CW belong to at least two 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 CW 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 number of data transmission layers.
[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 Or, 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 associated with the TCI 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 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 aggregated 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 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.
[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, wherein 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.
[0045] Embodiments of the present disclosure provide a PUSCH configuration method, apparatus, communication device, and storage medium. 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 the 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 the different antenna panels perform NC-JT of the PUSCH using SDM. In this way, on the one hand, by indicating beam information for different antenna panels using different TCIs, the beam information for each antenna panel can be individually configured, thereby improving beam configuration flexibility. On the other hand, by performing NC-JT of an uplink PUSCH using SDM, multiple antenna panels can simultaneously transmit, thereby reducing uplink transmission delay in multi-TRP and improving throughput. Different antenna panels can individually precode, thereby reducing the impact of the transmission environment on transmission and improving transmission reliability. Multiple antenna panels transmit using the same transmission resource, thereby saving transmission resources and improving transmission resource utilization.
[0046] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure. [Brief explanation of the drawings]
[0047] The drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the specification serve to explain the principles of the present invention. [Figure 1] 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment; [Figure 2] 1 is a schematic diagram of an MTRP downlink transmission framework illustrated by an exemplary embodiment. [Figure 3] FIG. 10 is a schematic diagram of another MTRP downlink transmission framework illustrated by an exemplary embodiment. [Figure 4] FIG. 1 is a schematic diagram of dynamic transmission point selection transmission illustrated by an exemplary embodiment; [Figure 5] FIG. 1 is a schematic diagram of coherent joint transmission as illustrated by an exemplary embodiment; [Figure 6] FIG. 1 is a schematic diagram of non-coherent joint transmission as illustrated by an exemplary embodiment; [Figure 7] 1 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] 1 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. 10 is a schematic diagram of another MTRP uplink SDM transmission framework illustrated by an exemplary embodiment; [Figure 13]FIG. 10 is a schematic diagram of another MTRP uplink SDM transmission shown in accordance with an exemplary embodiment; [Figure 14] FIG. 10 is a block diagram of another PUSCH setting device according to an exemplary embodiment; [Figure 15] FIG. 1 is a block diagram of an apparatus for PUSCH configuration according to an exemplary embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0048] Reference will now be made in detail to illustrative embodiments, examples of which are illustrated in the drawings. When the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following illustrative examples 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 set forth 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 the context clearly indicates otherwise, the singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims also include the plural forms. Furthermore, 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 pieces of information may be described using terms such as first, second, and third in the embodiments of the present disclosure, these pieces of information should not be limited to these terms. These terms are used only to distinguish between pieces of information of the same type. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the term "when" as used herein can be interpreted as "when," "when," or "in response to determining."
[0051] 1, which is a schematic 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 may include several terminals 11 and several base stations 12.
[0052] Here, the terminal 11 may refer to a device that provides voice and / or data connectivity to a user. The terminal 11 can communicate with one or more core networks via a wireless radio access network (RAN). The terminal 11 may be an Internet of Things device, such as a sensor device, a mobile phone (also called a "cellular" phone), or a computer with Internet of Things user equipment, such as a fixed, portable, pocket-sized, handheld, computer-integrated, 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, such as an electronic control unit having wireless communication capabilities, or a wireless user equipment device with an external electronic control unit, or may be a roadside device, such as a street lamp, traffic light, or other roadside device having wireless communication capabilities.
[0053] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a 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 5G system. The radio access network of the 5G system may be called a New Generation-Radio Access Network (NG-RAN). Alternatively, the wireless communication system may be an MTC system.
[0054] Here, the base station 120 may be an evolved base station (eNB) used in a 4G system. Alternatively, 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 typically includes a central unit (CU) and at least two distributed units (DUs). The central unit is provided with protocol stacks for 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 for a physical (PHY) layer. The embodiments of the present disclosure are not limited to a specific implementation 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. Alternatively, 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. Alternatively, 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, such as in vehicle-to-vehicle (V2V) communication in vehicle-to-everything (V2X) communication, vehicle-to-infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication.
[0057] In some embodiments, the wireless communication system may further include a network management device 13 .
[0058] The base stations 12 are each 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, a Mobility Management Entity (MME) in an Evolved Packet Core (EPC) network. Alternatively, 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). The embodiments of the present disclosure do not limit the implementation form of the network management device 13.
[0059] Coordinated Multiple Point transmission (CoMP) remains an important technology in New Radio (NR) systems to improve cell edge coverage and provide more balanced service quality within service areas. From a network topology perspective, a network deployment that combines multiple distributed access points with a centralized baseband processing method is more advantageous for providing balanced user experience speeds and significantly reduces handover delays and signaling overhead. As frequency bands increase, a relatively dense deployment of access points is necessary to ensure network coverage. Meanwhile, in high-frequency bands, the increasing integration of active antenna devices is leading to the adoption of 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 transmitted signals to multiple transmit / receive points (TRPs) / antenna panels. In coherent transmission, each data layer is mapped to multiple TRPs / panels via a weighting vector. In non-coherent transmission, each data stream is mapped to only some TRPs / panels. Coherent transmission places higher requirements on synchronization between transmission points and the transmission capacity of backhaul links, making it sensitive to many non-ideal factors in real-world deployment conditions. In contrast, non-coherent transmission is less affected by the above factors and is therefore a key consideration for multipoint transmission technology.
[0061] Quasi Co-Location (QCL) means that the large-scale parameters of the channel experienced by symbols on one antenna port can be inferred from the channel experienced by 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 was introduced with the emergence of cooperative multipoint transmission technology. The multiple sites involved in cooperative multipoint 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 between each site result in large-scale channel parameter differences between the receiving links from different sites, such as Doppler frequency shift and delay extension. These large-scale channel parameters directly affect the adjustment and optimization of filter coefficients during channel estimation. Different channel estimation filter parameters must be used to accommodate signals from different sites and adapt to the corresponding channel propagation characteristics.
[0063] Therefore, while differences in the spatial location or angle of each site are transparent to the UE and the CoMP operation itself, the impact of these spatial differences on the large-scale parameters of the channel is an important factor that the UE must consider when performing channel estimation and reception detection. When two antenna ports are QCL in terms of some large-scale parameters, it means that these large-scale parameters of the two ports are the same. Alternatively, if some large-scale parameters of the two ports match, the terminal can consider these two ports to be transmitting from the same location (i.e., pseudo-colocation), regardless of whether there are differences in the actual physical locations or orientations 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 large-scale channel 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, mean 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 receiving parameters} As mentioned above, this parameter is primarily intended for frequency bands above 6 GHz, and is therefore used alone as a single QCL type.
[0065] NR Release 15 (Rel-15) specifies that the demodulation reference signal (DMRS) port within each code division multiplexing (CDM) group is located on the QCL.
[0066] A scenario of coordinated multipoint transmission involves one terminal and multiple TRPs, as shown in Figure 2. As shown in Figure 3, the terminal can perform uplink PUSCH transmission toward the TRPs of multiple base stations. The terminal can perform coordinated transmission using a time-division multiplexing (TDM) transmission method. The terminal transmits the same TB of the 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 terminal capabilities, does not require support for simultaneous beam transmission, and has a large transmission delay.
[0067] For uplink transmission, PUSCH channels for different TRPs may have significantly different spatial characteristics of the channels they actually pass through, so the QCL-Ds of PUSCH channels in different transmission directions are likely to 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 coherent transmission, each data transmission layer is mapped to multiple TRPs / antenna panels participating in cooperative transmission via a weighting vector. If the large-scale channel parameters of each TRP / antenna panel are the same and the same frequency source is used, coherent transmission is equivalent to combining multiple subarrays into a higher-dimensional virtual array, resulting in higher shaping, precoding, and multiplexing gains. However, in a practical 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 matching channel large-scale parameters (i.e., QCL), and different data streams can be mapped to different ports on the QCL. All cooperative points (multiple TRP / antenna panels in cooperative transmission) need not be integrated into one virtual array and coordinated for each layer.
[0071] Joint transmission can include dynamic transmission point selection (DPS) transmission, coherent joint transmission (C-JT), and noncoherent joint transmission (NC-JT). As shown in Figure 4, in single-point transmission (i.e., DPS transmission), all data transmission layers corresponding to all codewords are transmitted through one transmission point. As shown in Figure 5, in the case of C-JT, all codewords and layers are transmitted after joint precoding through two transmission points. As shown in Figure 6, in the NC-JT method, the two data transmission layers corresponding to codeword 0 are transmitted from transmission point 1 (TP1), 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 the 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 transmission reliability and throughput while effectively reducing transmission delay in multi-TRP is an issue that needs to be solved urgently.
[0073] As shown in FIG. 7, this 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 resources, where the transmission resources include time domain resources and frequency domain resources, 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, network side devices such as core network devices and access network devices, and / or terminals. Here, the terminals may include handheld terminals and / or non-handheld terminals, etc., but are not limited thereto.
[0076] The terminal may be a UE that can simultaneously realize coordinated multipoint transmission in the direction of the TRPs of multiple base stations. The UE can simultaneously realize uplink coordinated multipoint transmission in the direction of the TRPs of multiple base stations. Coordinated multipoint transmission (CoMP) refers to multiple geographically separated TRPs cooperating to transmit data to a single terminal or receive data transmitted from a single terminal. Here, the TRP may include an antenna panel of a base station.
[0077] For example, the UE may support simultaneous N-channel NC-JT of PUSCH to N TRPs of the base station via N antenna panels, where N is a positive integer greater than or equal to 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 by the corresponding antenna panel when performing NC-JC of PUSH. Here, the beam information indicates at least the beam direction, etc. Here, the TCI can be set as a 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 the 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, an SRI can be used.
[0082] If the TRP has beam alignment, it can adopt unified TCI. In unified TCI, multiple channels and signals share an uplink / downlink beam, and multiple CCs use a common beam. Beam alignment in the TRP can include the TRP's downlink receive beam and uplink transmit beam being reciprocal, i.e., the downlink receive beam and uplink transmit beam being beam correspondence. When beam alignment is present, 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 in a sounding reference signal resource indicator (SRI). The sounding reference signal resource indicator is intended to indicate an uplink transmission analog beam direction corresponding to an SRS resource specifically used for a PUSCH for uplink transmission in codebook transmission, and to indicate transmission of an SRS resource specifically used for a PUSCH for a specific transmission as a precoding of the uplink PUSCH, i.e., a transmission beam direction of a different layer, in non-codebook transmission. The TCI can be carried using reserved bits indicated by the sounding reference signal resource. Different sounding reference signal resource indicators may be transmitted for different antenna panels. The TCI in the sounding reference signal resource indicator may be directly associated with the antenna panel that received the sounding reference signal resource indicator.
[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 specified by the TCI can be transmitted at the same time, for example in the same slot, using the same time and frequency resources. By specifying beams in different directions, the TCI can enable different antenna panels to perform non-coherent joint transmission (NC-JT) of the 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-located Type-D source reference signals in different beams to determine different beams through which communication can be performed. One quasi-co-located 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 Or, The different aggregated TCIs are carried by one TCI indication field.
[0095] A TCI may be carried by multiple individual TCI indication fields, for example, two individual TCI fields may indicate the TCI, each carrying one TCI, i.e., each TCI indication field may indicate one beam direction.
[0096] Multiple TCIs can be carried by one TCI indication field, i.e., one TCI code point. For example, one TCI indication field may carry two TCIs, 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 resource.
[0099] Configured Grant CG PUSCH is divided into two types: Type 1 and Type 2. Here, all parameters of Type 1 CG PUSCH can be configured by RRC signaling and can be transmitted periodically once configured. Type 2 CG PUSCH can be configured with some parameters by RRC signaling and is activated / deactivated by downlink control information (DCI). Other parameters must be provided in the activation DCI and can be used periodically after activation.
[0100] In one embodiment, wherein the TCI is: Radio Resource Control (RRC) signaling; and Media Access Control Control Element (MAC-CE) signaling; and and DCI signaling.
[0101] The base station may carry the TCI through different signaling to increase the flexibility of the TCI indication.
[0102] In this way, on the one hand, by specifying the beam information of different antenna panels using different TCIs, the beam information of each antenna panel can be set individually, improving the flexibility of beam setting. On the other hand, by performing NC-JT of uplink PUSCH using SDM, multiple antenna panels can transmit simultaneously, reducing uplink transmission delay in multi-TRP and improving throughput. Different antenna panels can be precoded individually, reducing the impact of the transmission environment on transmission and improving transmission reliability. Multiple antenna panels can transmit using the same transmission resource, saving transmission resources and improving transmission resource utilization.
[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 different data transmission layer sets are different from each other.
[0104] The data transmission layer set associated with a TCI may be the data transmission layer set transmitted by the antenna panel associated with the TCI, and 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, if a terminal has two antenna panels, the data transmission layer set of the TCI corresponding to one antenna panel includes two data transmission layers, Layer 1 and Layer 2, and the data transmission layer set of the 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 associated with the TCI 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] For example, 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) resources 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 network side device may determine the maximum number of ports 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 of a 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, this 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 CW is associated with multiple data transmission layers, and where the multiple data transmission layers associated with one CW belong to at least two data transmission layer sets.
[0112] Here, one TB can obtain one code word (CW) through data processing. The data processing may 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. The CW is transmitted by a terminal via multiple antenna panels. Different TCIs indicate the data transmission layers transmitted by different antenna panels.
[0113] For example, assume that a terminal has two antenna panels, as shown in FIG. 9. The data transmission layer set of a TCI associated with antenna panel 1 includes two data transmission layers, data transmission layer 1 and data transmission layer 2, and the data transmission layer set of a TCI associated with antenna panel 2 includes two data transmission layers, data transmission layer 3 and data transmission layer 4. The CW of one TB can be mapped to four data transmission layers, 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, antenna panel 1 transmits data on data transmission layer 1 and data transmission layer 2, and antenna panel 2 transmits data on data transmission layer 3 and 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 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 circular cache and reading them out sequentially from the circular 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 channel conditions are higher than a predetermined threshold, and fewer data transmission layers can be configured for TRPs where channel conditions are lower than a predetermined threshold.
[0120] In the related art, in the case of MTRP, the number of RANs configured 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, and does not support, for example, 1+2 RANK allocation (i.e., TRP1 configures one data transmission layer and TRP2 configures two data transmission layers). When RANK=4, only 2+2 RANK allocation is supported, and does not support, for example, 1+3 or 3+1 RANK allocation.
[0121] Here, the RANK assignment is not limited to the RANK assignment method in the related art, but can be performed based on the channel conditions of multiple TRPs. For example, when RANK=4, 2+2 RANK assignment is supported, and 1+3 or 3+1 RANK assignment can also be adopted. In this way, the flexibility of RANK assignment is improved and it can adapt to the channel conditions of different TRPs.
[0122] As shown in FIG. 11, this 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 CW 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 to one data transmission layer and combined. The data transmission layer sets corresponding to each CW may be different. M codewords can be transmitted by a terminal via M antenna panels. Different TCIs indicate that different antenna panels transmit corresponding data transmission layer sets.
[0126] For example, assume that a terminal has two antenna panels, as shown in FIG. 12. Data transmission layer set 1 of a TCI associated with antenna panel 1 includes two data transmission layers, data transmission layer 1 and data transmission layer 2, and data transmission layer set 2 of a TCI associated with antenna panel 2 includes two data transmission layers, data transmission layer 3 and data transmission layer 4. Data transmission layer set 1 is different from data transmission layer set 2. A TB obtains CW0 and CW1 through data processing. CW0 can be matched to data transmission layer set 1, i.e., data of data transmission layer set 1 constitutes CW0. CW1 can be matched to data transmission layer set 2, i.e., data of data transmission layer set 2 constitutes CW1. When a terminal performs uplink transmission, antenna panel 1 transmits data of data transmission layer set 1, and antenna panel 2 transmits data of data transmission layer set 2. Here, one antenna panel corresponds to one TRP. Each TRP can correspond to one beam direction. The beam direction of each TRP is different.
[0127] In this way, multiple CWs of one TB are transmitted by multiple antenna panels, each corresponding to a TRP with a different beam direction, thereby realizing SDM. Simultaneous transmission by multiple antenna panels reduces uplink transmission delay in multi-TRP and improves throughput. In addition, simultaneous transmission of two copies of one TB improves data transmission reliability.
[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 rate matching operations 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 number of data transmission layers.
[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 corresponds 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 TRP ranks corresponding to each CW is the same. That is, the number of data transmission layers corresponding to each CW is the same. This further increases the uplink transmission code rate and throughput and improves blocking resistance. A single MCS may be indicated by the DCI MCS indication field.
[0136] For example, as shown in Figure 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. As such, CW0 and CW1 have the same number of corresponding bits, and therefore the RANK numbers corresponding to different TRPs for CW0 and CW1 are also the same. The RANK numbers of the TRPs corresponding to each CW are 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, 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 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 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.
[0142] If multiple CWs have different bit numbers, the rank numbers of the TRPs corresponding to each CW may be different, i.e., the number of data transmission layers corresponding to each CW may be different. The rank numbers can be set for different CWs based on the data volume of each CW. A fixed rank number is not used for setting. This increases the flexibility of rank number allocation.
[0143] For example, a terminal has two antenna panels, each corresponding to two TRPs. Each of the two antenna panels corresponds to one MCS, and one TB uses a different MCS to determine CW0 and CW1. CW0 and CW1 may have the same or different corresponding number of bits. If CW0 and CW1 have the same number of bits, CW0 and CW1 also have the same number of RANKs corresponding to different TRPs. If CW0 and CW1 have different number of bits, CW0 and CW1 may have the same or different number of RANKs corresponding to different TRPs. 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 different DMRS port sets are different from each other.
[0145] For NC-JT, the set of DMRS ports associated with each TCI is different, that is, each antenna panel has different DMRS ports that perform NC-JT using SDM on the same time domain resources and frequency domain resources.
[0146] Below, one specific example is provided in combination with any of the above examples.
[0147] Based on the unified TCI framework, N TCI states suitable for simultaneous transmission are configured in the terminal, and depending on whether MP / MTRP beam alignment is achieved, they can be commonly indicated to the terminal through N different joint TCIs (joint TCIs) or N separate uplink TCIs (separate UL TCIs). 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 the antenna panel corresponding to the QCL Type-D source RS included in the TCI.
[0148] If the integrated TCI is not configured, fall back to the 3GPP release 15 / 16 (R15 / 16) proposed instructions and use spatialRelationInfo1 / 2 indicated by the SRI combination.
[0149] The number of data transmission layers actually supported for each TCI must be considered based on 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 vary. That is, the maximum numbers of data transmission layers supported by different antenna panels are N_p1 and N_p2 for panel 1 and panel 2, 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 using multiple RVs, and the coded bits are transmitted on different corresponding data transmission layers.
[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 to improve the anti-blockage capability.
[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 using multiple RVs, and the coded bits are transmitted on different corresponding data transmission layers.
[0161] Maximum number of data transmission layers supported: 4 layers.
[0162] Different TCIs have different associated 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, which is applied to a network side device and / or a terminal of a cellular mobile radio communication, wherein the apparatus 100 comprises: The present invention includes a processing module 100 configured to set different transmission configuration instructions (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of an uplink PUSCH, wherein 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 wherein 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 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 CW is associated with multiple data transmission layers, and where the multiple data transmission layers associated with one CW belong to at least two 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 CW 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 number of data transmission layers.
[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 Or, 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 associated with the TCI 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 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 aggregated 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 (CPUs, Central Processing Units), graphics processors (GPUs, Graphics Processing Units), baseband processors (BPs, Baseband Processors), application specific integrated circuits (ASICs, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLDs, Complex Programmable Logic Devices), field programmable gate arrays (FPGAs), general purpose processors, controllers, microcontrollers (MCUs, Micro Controller Units), microprocessors, or other electronic components to perform the above-described 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 of the steps of the above-described methods. The processing component 3002 may also 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] Memory 3004 is configured to store various types of data to support operation on device 3000. Examples of this data include instructions for any application programs or methods for operating on device 3000, contact data, phone book data, messages, images, videos, etc. Memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.
[0188] The power component 3006 provides power to various components of the device 3000. The power component 3006 may 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 may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel may include one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors may detect not only the boundaries of a touch or slide operation but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 3008 includes a front camera and / or a rear camera. When the device 3000 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may 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 device 3000 with status assessment. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, and can further detect changes in the position 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 temperature changes 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 above-described methods.
[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 a processor 3020 of the apparatus 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, or an optical data storage device.
[0196] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common general knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are considered to be 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 shown 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 appended claims.
Claims
1. 1. A physical uplink shared channel (PUSCH) configuration method, comprising: The method includes a step of configuring different transmission configuration instructions (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of a PUSCH, the TCIs being associated with beam information, 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 by space division multiplexing (SDM); The data transmission layer sets associated with the different TCIs are different, 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; PUSCH configuration method.
2. Different antenna panels of the terminal transmit a single codeword (CW) corresponding to one transport block (TB) of the NC-JT of the PUSCH, one CW is associated with multiple data transmission layers, and the multiple data transmission layers associated with one CW belong to at least two of the data transmission layer sets. The PUSCH setting method according to claim 1 .
3. 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 2.
4. 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 1 .
5. 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. The PUSCH setting method according to claim 1 .
6. different TCIs correspond to different transmission / reception point (TRP) directions of a base station; The PUSCH setting method according to claim 1 .
7. 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 6.
8. The TCI is Integrated TCI and Spatial Relationship Information (SRI); a sounding reference signal resource indication (SRI); The PUSCH setting method according to claim 1 .
9. A physical uplink shared channel (PUSCH) configuration device, comprising: a processing module configured to set different transmission configuration instructions (TCIs) for different antenna panels of a terminal for non-coherent joint transmission (NC-JT) of a PUSCH, the TCIs being associated with beam information, 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 by space division multiplexing (SDM); The data transmission layer sets associated with the different TCIs are different, 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; PUSCH setting device.
10. 1. A communication 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 the steps of the Physical Uplink Shared Channel (PUSCH) configuration method according to any one of claims 1 to 8. Communication devices.
11. A computer program comprising: When the computer program is executed by a processor, the steps of the Physical Uplink Shared Channel (PUSCH) configuration method according to any one of claims 1 to 8 are realized. Computer program.
Citation Information
Patent Citations
User terminal and wireless communication method
WO2020194741A1