Physical Uplink Shared Channel Configuration Method, Apparatus, Communication Device, and Storage Medium
By configuring different TCIs for each antenna panel and sharing these across the same transmission resource, the proposed method addresses the challenges of configuring PUSCH in SFN, enhancing transmission reliability and throughput while optimizing resource utilization.
Patent Information
- Application Number
- JP2024563149
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-04-28
- Publication Date
- 2025-05-27
AI Technical Summary
Existing wireless communication technologies face challenges in efficiently configuring the Physical Uplink Shared Channel (PUSCH) for multiple antenna panels in a single-frequency network (SFN), which affects transmission reliability and throughput.
The proposed solution involves configuring different transmission configuration indications (TCIs) for different antenna panels, where each TCI is associated with beam information and shared across the same transmission resource, enabling spatial division multiplexing (SDM) for SFN transmission of PUSCH.
This approach improves the flexibility of beam setting, reduces uplink transmission delay, enhances throughput, and increases transmission reliability by allowing multiple antenna panels to transmit on the same resource, thereby optimizing resource utilization.
Smart Images

Figure 2025516181000001_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wireless communication technology, but is not limited to the field of wireless communication technology. In particular, it relates to a method, apparatus, communication device, and storage medium for configuring a Physical Uplink Shared Channel (PUSCH).
Background Art
[0002] Multiple Input Multiple Output (MIMO) is an antenna system that uses multiple antennas on both the transmitting and receiving sides to form multiple channels for transmission and reception in order to increase channel capacity.
[0003] In an MIMO system, both the transmitter and receiver communicate using multiple simultaneously operable antennas. The MIMO system typically employs complex signal processing techniques to significantly improve reliability, transmission range, and throughput. The transmitter transmits multiple radio frequency signals simultaneously, and the receiver recovers 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 the embodiments of the present disclosure, a PUSCH configuration method is provided, where the method includes: For the single-frequency network (SFN) transmission of the uplink PUSCH, a step of configuring different transmission configuration indications (TCI) for different antenna panels of a terminal, where the TCI is 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 a plurality of different antenna panels perform SFN transmission of the PUSCH using space division multiplexing (SDM).
[0006] In one embodiment, the SFN transmission of the PUSCH is Non-Coherent Joint Transmission (NC-JT) of the SFN, and Coherent Joint Transmission (C-JT) of the SFN, and includes one of them.
[0007] In one embodiment, the data transmission layer sets associated with different TCIs are the same, where one data transmission layer set includes one or more data transmission layers.
[0008] In one embodiment, different antenna panels of the terminal perform transmission of a single codeword (CW) corresponding to one transmission block (TB) of the PUSCH, where the single CW is associated with one data transmission layer set.
[0009] In one embodiment, different antenna panels of the terminal perform transmission of the single codeword (CW) of the PUSCH using a single redundancy version (RV).
[0010] In one embodiment, In response to performing NC-JT of the PUSCH, each of the antenna panels performs individual precoding processing using a precoding matrix corresponding to each of the antenna panels, or or in response to performing C-JT of the PUSCH, all of the antenna panels perform coordinated precoding processing using one precoding matrix.
[0011] In one embodiment, when transmitting the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N-p1, N-p2, … N-pX}, where X is the total number of antenna panels of the terminal, N-px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer less than or equal to X.
[0012] In one embodiment, in response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, where one DMRS port set includes one or more DMRS ports.
[0013] In one embodiment, different TCIs correspond to different transmission and reception point (TRP) directions of the base station.
[0014] In one embodiment, 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.
[0015] In one embodiment, the TCI includes an integrated TCI, spatial relation information (SRI), Includes one of the sounding reference signal resource indicator (SRI).
[0016] In one embodiment, Whether the different integrated TCIs are carried by different TCI indication fields, Or, The different integrated TCIs are carried by one TCI indication field.
[0017] In one embodiment, the integrated TCI is Joint TCI and Separate TCI, and includes one of them.
[0018] In one embodiment, the PUSCH is The PUSCH scheduled by downlink control information (DCI), The type 1 downlink control information (DCI) PUSCH without scheduling, And at least one of the type 2 CG PUSCH without scheduling.
[0019] In one embodiment, the TCI is Included in at least one of radio resource control (RRC) signaling, Media access control control element (MAC-CE) signaling, And DCI signaling (carry).
[0020] According to a second aspect of the embodiments of the present disclosure, a physical uplink shared channel (PUSCH) setting device is provided, where the device is A processing module configured to set different transmission configuration indications (TCIs) for different antenna panels of a terminal for single-frequency network (SFN) transmission of an uplink physical uplink shared channel (PUSCH), wherein the TCI is associated with beam information, 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 a plurality of different antenna panels perform SFN transmission of the PUSCH by spatial division multiplexing (SDM).
[0021] In one embodiment, the SFN transmission of the PUSCH is either non-coherent joint transmission (NC-JT) of the SFN or coherent joint transmission (C-JT) of the SFN.
[0022] In one embodiment, the data transmission layer sets associated with different TCIs are the same, where one data transmission layer set includes one or more data transmission layers.
[0023] In one embodiment, different antenna panels of the terminal perform transmission of a single codeword (CW) corresponding to one transmission block (TB) of the PUSCH, where the single CW is associated with one data transmission layer set.
[0024] In one embodiment, different antenna panels of the terminal perform transmission of the single codeword (CW) of the PUSCH using a single redundancy version (RV).
[0025] In one embodiment, in response to performing NC-JT of the PUSCH, each antenna panel performs individual precoding processing using a precoding matrix corresponding to each antenna panel respectively, or or in response to performing C-JT of the PUSCH, all antenna panels perform coordinated precoding processing using one precoding matrix.
[0026] In one embodiment, when transmitting the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N - p1, N - p2, … N - pX}, where X is the total number of antenna panels of the terminal, N - px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer less than or equal to X.
[0027] In one embodiment, in response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, where one DMRS port set includes one or more DMRS ports.
[0028] In one embodiment, different TCIs correspond to different transmit-receive point (TRP) directions of the base station.
[0029] In one embodiment, 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.
[0030] In one embodiment, the TCI includes one of an integrated TCI, spatial relation information (SRI), and sounding reference signal resource indication (SRI).
[0031] In one embodiment, different integrated TCIs are carried by different TCI indication fields, or different integrated TCIs are carried by one TCI indication field.
[0032] In one embodiment, the integrated TCI includes one of a joint TCI and a separate TCI.
[0033] In one embodiment, the PUSCH includes at least one of a PUSCH scheduled by downlink control information (DCI), a type 1 configured grant (CG) PUSCH without scheduling, and a type 2 CG PUSCH without scheduling.
[0034] In one embodiment, the TCI is included in at least one of radio resource control (RRC) signaling, media access control control element (MAC-CE) signaling, and DCI signaling.
[0035] According to a third aspect of the embodiments of the present disclosure, a communication device is provided, including 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 steps of the physical uplink shared channel (PUSCH) setting method described in the first aspect are executed.
[0036] According to a fourth aspect of the embodiments of the present disclosure, a storage medium storing an executable program is provided. When the executable program is executed by a processor, the steps of the physical uplink shared channel (PUSCH) setting method according to any one of claims 1 to 19 are realized.
[0037] Embodiments of the present disclosure provide a PUSCH configuration method, apparatus, communication device, and storage medium. For the SFN transmission of the uplink PUSCH, different TCIs are set for different antenna panels of the terminal, where the TCI is associated with beam information, and different TCIs are simultaneously associated with the same transmission resource. Here, the transmission resource includes a time-domain resource and a frequency-domain resource. Here, a plurality of different antenna panels perform SFN transmission of the PUSCH using SDM. In this way, on the one hand, by instructing the beam information of different antenna panels by different TCIs respectively, 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 SFN transmission of the uplink PUSCH in the SDM mode, a plurality of antenna panels perform transmission simultaneously, so that the uplink transmission delay in the multi-TRP is reduced, the throughput is improved, different antenna panels can transmit the same data, the influence of the transmission environment on the transmission is reduced, and the transmission reliability is improved. By transmitting on the same transmission resource by a plurality of antenna panels, the transmission resource is saved and the utilization rate of the transmission resource is improved.
[0038] 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 Description of the Drawings
[0039] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments that conform to the embodiments of the present invention, and are used together with the specification to explain the principles of the embodiments of the present invention.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
[0040] Here, exemplary embodiments will be described in detail, and the examples are shown in the drawings. In the following description, when it relates to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments that conform to the embodiments of the present invention. Rather, they are merely examples of devices and methods that conform to some aspects of the embodiments of the present invention, which are described in detail in the appended claims.
[0041] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present disclosure. Unless otherwise clearly indicated in the context, the singular forms "a", "an", 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" used in this specification refers to and includes any and all possible combinations of one or more of the related and listed items.
[0042] It should be understood that in the embodiments of the present disclosure, although various information may be described using terms such as first, second, third, etc., this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, unless departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the term "in the case of" used here can be interpreted as "when", "when...", or "in response to determining...".
[0043] Referring to FIG. 1, it 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 this wireless communication system can include several terminals 11 and several base stations 12.
[0044] Here, the terminal 11 may refer to a device that provides voice and / or data connections to a user. The terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). The terminal 11 may be an Internet of Things device, for example, a sensor device, a mobile phone (or a "cellular" phone), or a computer with Internet of Things user equipment, such as a fixed, portable, pocket-sized, handheld, computer-integrated, or in-vehicle device. For example, it may be a Station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Or, the terminal 11 may be a drone device. Or, the terminal 11 may be an in-vehicle device, for example, an electronic control unit with a wireless communication function, or a wireless user equipment device for externally attaching an electronic control unit. Or, the terminal 11 may be a roadside device, such as a street lamp, a traffic signal, or other roadside devices with a wireless communication function.
[0045] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth-generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system. Or, the wireless communication system may be a 5G system, also known as the new radio (NR) system or 5G NR system. Or, the wireless communication system may be a next-generation system of the 5G system. The radio access network of the 5G system may be called the NG-RAN (New Generation-Radio Access Network). Or, it may be an MTC system.
[0046] Here, the base station 12 may be an evolved Node B (eNB) used in a 4G system. Or, the base station 12 may be a gNB (gNode B) that uses a centralized and distributed framework in a 5G system. When the base station 12 uses a centralized and distributed framework, it usually includes a central unit (CU) and at least two distributed units (DUs). The central unit is provided with a protocol stack of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Medium Access Control (MAC) layer. The distributed unit is provided with a protocol stack of the Physical (PHY) layer. The embodiments of the present disclosure are not limited to specific implementation forms of the base station 12.
[0047] 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 the fourth-generation mobile communication network technology (4G) standard. Alternatively, the wireless air interface is a wireless air interface based on the 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 the next-generation mobile communication network technology standard of 5G.
[0048] In some embodiments, an E2E (End to End) connection can be established between terminals 11. For example, it is a scenario such as vehicle-to-vehicle (V2V) communication, vehicle-to-Infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication in vehicle Internet communication (vehicle to everything, V2X).
[0049] In some embodiments, the wireless communication system can further include a network management device 13.
[0050] Some 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, the network management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the network management device may be other core network devices, 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). In the embodiments of the present disclosure, the implementation form of the network management device 13 is not limited.
[0051] To improve cell-edge coverage and provide a more balanced service quality within the service area, Coordinated Multiple Point transmission (CoMP) remains an important technical means in the new radio (NR) system. From the perspective of the network form, combining a large number of distributed access points with a baseband centralized processing method for network deployment is more advantageous in providing a balanced user experience speed, and the delay and signaling overhead caused by handover are significantly reduced. With the increase in the frequency band, from the perspective of ensuring network coverage, a relatively dense arrangement of access points is also required. On the other hand, in the high-frequency band, with the improvement of the integration degree of active antenna devices, modular active antenna arrays tend to be adopted.
[0052] Coordinated multipoint transmission technology can be divided into two types: coherent transmission and non-coherent transmission, according to the mapping relationship between a plurality of transmit and receive points (TRP, Transmit Receive Point) / antenna panels of the transmitted signal. Here, in the case of coherent transmission, each data layer is mapped to a plurality of TRPs / panels via a weighting vector. In the case of non-coherent transmission, each data stream is mapped to only some of the TRPs / panels. Coherent transmission has higher requirements for the synchronization between transmission points and the transmission capacity of the backhaul link, so it is sensitive to many non-ideal elements of the actual deployment conditions. In contrast, non-coherent transmission is less affected by the above elements, so it is a key consideration in multipoint transmission technology.
[0053] Quasi Co-Location (QCL) means that the large-scale parameters of the channel experienced by a symbol on a certain antenna port can be inferred from the channel experienced by a symbol on another antenna port. The large-scale parameters here can include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters, etc.
[0054] The concept of QCL was introduced with the emergence of coordinated multipoint transmission technology. The multiple sites involved in coordinated multipoint transmission may correspond to multiple geographically different sites (including TRPs) or multiple sectors with different orientations of antenna panels. For example, when a terminal receives data from different sites, the spatial differences between the sites will result in differences in the large-scale channel parameters of the receive links from different sites, such as Doppler frequency shift and delay spread. The large-scale parameters of the channel directly affect the adjustment and optimization of the filter coefficients during channel estimation. In response to signals from different sites, different channel estimation filter parameters must be used to adapt to the corresponding channel propagation characteristics.
[0055] Therefore, although the differences in the spatial positions or angles of each site are transparent to the UE and the CoMP operation itself, the influence of the above spatial differences on the large-scale parameters of the channel is an important factor that should be considered when the UE performs 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 these two ports are the same. Alternatively, if some large-scale parameters of the two ports match, the terminal can consider that these two ports are transmitted from the same position (i.e., virtual co-location) regardless of whether there are differences in the actual physical positions and the orientations of the corresponding antenna panels.
[0056] For some typical application scenarios, from the perspective of simplifying signaling by considering the possible QCL relationships between various reference signals, in NR, some large-scale parameters of the channels are divided into the following four types, which is convenient for the system to perform settings / instructions based on different scenarios. QCL-TypeA: {Doppler frequency shift, Doppler spread, average delay, delay spread} - All other large-scale parameters except the spatial reception parameters are the same. - For frequency bands below 6 GHz, spatial reception parameters may not be required. QCL-TypeB: {Doppler frequency shift, Doppler spread} - Only for frequency bands below 6 GHz, there are the following two cases. QCL-TypeC: {Doppler frequency shift, average delay} QCL-TypeD: {Spatial reception parameters} - As mentioned above, since this parameter mainly targets frequency bands above 6 GHz, it is used alone as one QCL type.
[0057] In NR Release 15 (Rel-15), it is specified that the demodulation reference signal (DMRS) ports within each code division multiplexing (CDM) group are in quasi-co-location (QCL).
[0058] One scenario of coordinated multipoint transmission includes one terminal and multiple transmit receive points (TRPs) as shown in Fig. 2. As shown in Fig. 3, the terminal can perform uplink physical uplink shared channel (PUSCH) transmission in the directions of the TRPs of multiple base stations. The terminal can adopt a time-division multiplexing (TDM) transmission mode to perform coordinated transmission. The terminal transmits the same transport block (TB) of PUSCH to different TRPs of the base station in a time-division manner in different transmission occasions in the time domain. This method has relatively low requirements for the terminal's capabilities, does not need to support the ability to transmit beams simultaneously, and has a large transmission delay.
[0059] In the case of uplink transmission, since the spatial characteristics of the channels actually passed by the PUSCH channels for different TRPs may be very different, it is considered that the quasi-co-location for DMRS (QCL-D) of the PUSCH channels in different transmission directions is different.
[0060] Coordinated multipoint transmission technology can be broadly classified into two types: coherent transmission and non-coherent transmission, according to the mapping relationship of the transmitted signal to multiple TRP / antenna panels.
[0061] In the case of coherent transmission, each data transmission layer is mapped via a weighted vector to a plurality of TRPs / antenna panels participating in cooperative transmission. When 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 the same as connecting a plurality of sub-arrays into a higher-dimensional virtual array, and higher shaping / precoding / multiplexing gains can be obtained. However, in the actual deployment environment, this method has higher requirements for synchronization between transmission points and the transmission capacity of the backhaul.
[0062] Non-coherent transmission means that each data stream is mapped only to the ports corresponding to the TRP / antenna panels where the large-scale parameters of the channels match (i.e., QCL), different data streams can be mapped to different ports of QCL, all cooperation points (a plurality of TRPs / antenna panels for cooperative transmission) can be integrated as one virtual array, and there is no need to cooperate and perform shaping layer by layer.
[0063] Joint transmission can include dynamic point selection (DPS) transmission, coherent joint transmission (C-JT), non-coherent joint transmission (NC-JT), etc. As shown in Figure 4, all data transmission layers corresponding to all codewords of single-point transmission (i.e., DPS transmission) are transmitted through one transmission point. As shown in Figure 5, in the case of C-JT, all codewords and layers are jointly precoded through two transmission points and then transmitted. As shown in Figure 6, in the NC-JT method, the two data transmission layers corresponding to codeword 0 are transmitted from transmit point 1 (TP1), and the two data transmission layers corresponding to codeword 1 are transmitted from TP2.
[0064] In the time-division multiplexing (TDM) transmission mode, since the terminal transmits the same transport block (TB) of the physical uplink shared channel (PUSCH) to different transmit and receive points (TRPs) of the base station in a time-division manner in different transmission occasions in the time domain, the delay is large and the throughput is low. How to improve the transmission reliability and throughput while effectively reducing the transmission delay in multi-TRP is an issue that needs to be solved urgently.
[0065] As shown in FIG. 7, this exemplary embodiment provides a PUSCH configuration method, which can be executed by a network-side device and / or a terminal in a cellular mobile communication system, and includes the following steps.
[0066] In step 701, for the system frame number (SFN) transmission of the uplink PUSCH, different transmission configuration indicators (TCI) are set for different antenna panels of the terminal, where the TCI is 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 a plurality of different antenna panels perform SFN transmission of the PUSCH using spatial division multiplexing (SDM).
[0067] This embodiment can be applied to network-side devices such as core network devices and access network devices, and / or terminals, but is not limited thereto. Here, the terminal may include a mobile terminal and / or a non-mobile terminal, etc., and is not limited here.
[0068] The terminal may be a UE that can simultaneously achieve coordinated multipoint transmission in the TRP directions of multiple base stations. The UE can simultaneously achieve uplink coordinated multipoint transmission in the TRP directions of multiple base stations. Coordinated Multiple Points Transmission / Reception (CoMP) refers to the fact that multiple geographically separated TRPs cooperate to transmit data to one terminal or receive data transmitted from one terminal. Here, the TRP can include the antenna panel of the base station, etc.
[0069] For example, the terminal can support simultaneously performing SFN transmission of PUSCH to N TRPs of the base station by N antenna panels, where N is a positive integer greater than or equal to 2. Each antenna panel of the UE can correspond to one TRP of the base station. Different antenna panels of the terminal can simultaneously perform SFN transmission of PUSCH using beams in different directions.
[0070] SFN transmission can include transmitting the same data content to the TRP using the same frequency domain resource at the same time using multiple antenna panels of the terminal. For example, SFN transmission can be that the terminal transmits the same transmission block using multiple antenna panels at the same time using the same frequency domain resource.
[0071] Perform SFN transmission of PUSCH with multiple antenna panels, that is, transmit the same data content with multiple antenna panels. The network-side device can receive the data content at multiple TRPs and obtain the data content by means such as cooperating for decoding, thereby improving the reliability of uplink and downlink transmission.
[0072] In one embodiment, the SFN transmission of the PUSCH is non-coherent joint transmission (NC-JT) of the SFN, and It includes one of the coherent joint transmissions (NC-JT) of the SFN.
[0073] When performing C-JT of PUSCH, the terminal needs to jointly shape the data stream to be transmitted with multiple antenna panels, and coordinate the precoding matrices (relative phases) of different transmission points so that the same data stream can be coherently superimposed at the TRP. That is, virtualize the sub-arrays of multiple antenna panels into a higher-dimensional antenna array to obtain a higher shaping gain. Each antenna panel can apply an integrated precoding matrix to perform coordinated precoding processing for C-JT.
[0074] When performing NC-JT of PUSCH, the terminal does not need to jointly shape multiple antenna panels. Each antenna panel can individually precode the data stream to be transmitted, and there is no need to coordinate the relative phases. Each antenna panel can apply a precoding matrix corresponding to each of the antenna panels to perform individual precoding processing for NC-JT.
[0075] Here, one TCI can be set for each antenna panel of the terminal. The TCI indicates the beam information of the beam used when the corresponding antenna panel performs SFN transmission of PUSH. Here, the beam information indicates at least the direction of the beam, etc. Here, the TCI can be a TCI state.
[0076] Setting different TCIs for different antenna panels of the terminal may be to set different TCIs for each antenna panel of the terminal by the network-side device. Setting different TCIs for different antenna panels of the terminal may also be for the terminal to determine different TCIs for each antenna panel. Here, the TCI may be transmitted to the terminal by the network-side device.
[0077] In one embodiment, the TCI includes a unified TCI, spatial relation information (SRI), or a sounding reference signal resource indication (SRI).
[0078] The TCI may be a unified TCI. When the unified TCI is not configured, the SRI can be used.
[0079] When there is beam consistency at the TRP, the unified TCI can be adopted. The unified TCI shares the uplink / downlink beam with multi-channels and signals, and multiple CCs use a common beam. Having beam consistency at the TRP can include that the downlink receiving beam and the uplink transmitting beam of the TRP are reciprocal, that is, the downlink receiving beam and the uplink transmitting beam are in beam correspondence. When there is beam consistency, the direction of the uplink beam is also the direction of the downlink beam.
[0080] The base station may use spatial relation information (SRI) to indicate the TCI to the terminal.
[0081] The base station may carry the TCI by means of a Sounding Reference Signal RESOURCE INDICATOR (SRI). The Sounding Reference Signal RESOURCE INDICATOR is used to indicate, for the PUSCH for uplink transmission in codebook transmission, the uplink transmission analog beam direction corresponding to the SRS resource specifically used, and, in non-codebook transmission, the precoding of the uplink PUSCH, i.e., the transmission beam directions of different layers, for the transmission of the SRS resource specifically used for a specific transmission PUSCH. The reserved bits indicated by the Sounding Reference Signal RESOURCE can be used to carry the TCI. 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.
[0082] In one embodiment, the integrated TCI includes one of Joint TCI and
[0083] Separate TCI.
[0084] The Unified TCI can include Joint TCI and separate TCI. Here, the Joint TCI is used to indicate the uplink transmission beam and the downlink reception beam simultaneously, and the separate TCI is used to indicate the uplink transmission beam or the downlink reception beam.
[0085] In one embodiment, different said TCIs correspond to different transmit-receive point (TRP) directions of the base station.
[0086] The beams indicated by TCI can be transmitted using the same time-domain resources and frequency-domain resources at the same time, for example, in the same slot. By indicating beams in different directions, TCI can enable different antenna panels to perform SFN transmission of PUSCH using SDM.
[0087] 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.
[0088] The quasi-collocation type D source reference signal (QCL Type-D source RS) can 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).
[0089] The base station and the UE can interact with different quasi-collocation type D source reference signals within different beams to determine different communicable beams. One quasi-collocation type D source reference signal is associated with one beam. The association relationship may be a one-to-one correspondence. Here, the directions of different beams may be different.
[0090] TCI can indicate a beam in one direction by a quasi-collocation type D source reference signal.
[0091] In one embodiment, the different integrated TCIs are carried by different TCI indication fields, or, the different integrated TCIs are carried by one TCI indication field.
[0092] One TCI can be carried by a plurality of individual TCI indication fields. For example, two individual TCI fields can be used to indicate the TCI, with one TCI carried in each TCI indication field, that is, each TCI indication field may indicate one beam direction.
[0093] Multiple TCIs can also be carried by one TCI indication field, that is, one TCI code point. For example, two TCIs can be carried by one TCI indication field, that is, one TCI indication field may indicate the first TRP beam direction and the second TRP beam direction.
[0094] In one embodiment, the PUSCH includes at least one of a PUSCH scheduled by downlink control information (DCI), a type 1 configured grant (CG) PUSCH without scheduling, and a type 2 CG PUSCH without scheduling.
[0095] The PUSCH may be scheduled by a single DCI. The DCI may be transmitted on a PDCCH resource.
[0096] The configured grant (CG) PUSCH is divided into two types: type 1 and type 2. Here, all parameters of the type 1 CG PUSCH can be set by RRC signaling and can be transmitted periodically once set. Some parameters of the type 2 CG PUSCH can be set by RRC signaling and are activated / deactivated by downlink control information (DCI). Other parameters need to be given in the activation DCI and can be used periodically after activation.
[0097] In one embodiment, the TCI is included in at least one of radio resource control (RRC) signaling, media access control control element (MAC-CE) signaling, and DCI signaling.
[0098] The base station can carry the TCI by different signaling to improve the flexibility of TCI indication.
[0099] 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, improving the flexibility of beam setting. On the other hand, by performing SFN transmission of uplink PUSCH in the SDM mode, multiple antenna panels transmit simultaneously, reducing the uplink transmission delay in multi-TRP, improving the throughput, enabling different antenna panels to transmit the same data content, reducing the impact of the transmission environment on transmission, and improving the transmission reliability. By multiple antenna panels transmitting on the same transmission resource, transmission resources are saved and the utilization rate of transmission resources is improved.
[0100] In one embodiment, the data transmission layer sets associated with different TCIs are the same, where one said data transmission layer set includes one or more data transmission layers.
[0101] The data transmission layer set associated with the TCI can be the data transmission layer set transmitted by the antenna panel associated with the TCI. The data transmission layer sets associated with each TCI are the same, that is, the data transmission layers transmitted by each antenna panel are the same. Different antenna panels can transmit the same data content, improving the transmission reliability.
[0102] For example, the terminal has two antenna panels, and the set of data transmission layers of the TCI corresponding to the two antenna panels includes a total of four data transmission layers: data transmission layer 1, data transmission layer 2, data transmission layer 3, and data transmission layer 4. The two antennas can each transmit the four data transmission layers using the same transmission resources.
[0103] In one embodiment, when performing the transmission of the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N - p1, N - p2, … N - pX}, where X is the total number of antenna panels of the terminal, N - px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer less than or equal to X.
[0104] The data transmission layers that can be supported by different antenna panels may be different or the same. Since the data transmission layers transmitted by different antenna panels are the same, the number of data transmission layers needs to meet the support capacity of the antenna panel with the minimum data transmission layer number support capacity. Therefore, the maximum number of data transmission layers in the data transmission layer associated with the TCI can be the number of data transmission layers supported by the antenna panel with the minimum data transmission layer number support capacity among each antenna panel.
[0105] Exemplarily, the terminal can 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 can 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 can be 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 the network-side device instructs the terminal with TCI, it can 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 each antenna panel.
[0106] 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 the UE are N_p1 and N_p2 respectively. The maximum number of data transmission layers supported during CW mapping is min{N_p1, N_p2}. The CW can be mapped to I data transmission layers, where I is less than or equal to min{N_p1, N_p2}.
[0107] As shown in FIG. 8, this exemplary embodiment provides a PUSCH configuration method, which can be executed by a network-side device and / or a terminal in a cellular mobile communication system, and includes the following steps.
[0108] In step 801, different antenna panels of the terminal perform the transmission of a single codeword (CW) corresponding to one transmission block (TB) of the PUSCH, where the single CW is associated with one of the data transmission layer sets.
[0109] Here, one transport block (TB) can obtain one code word (CW) through data processing. The data processing can include code block segmentation, channel coding, rate matching, serial concatenation of code blocks, and the like. The CW of one TB can be mapped to M data transmission layers in the same time-frequency resource of the same slot, where M is a positive integer greater than or equal to 1. Multiple antenna panels of the terminal all transmit M data transmission layers.
[0110] Exemplarily, as shown in FIG. 9, it is assumed that the terminal has two antenna panels. The set of data transmission layers associated with the transmission configuration indicator (TCI) corresponding to antenna panel 1 includes data transmission layer 1, data transmission layer 2, data transmission layer 3, and data transmission layer 4. The set of data transmission layers associated with the TCI corresponding to antenna panel 2 also includes data transmission layer 1, data transmission layer 2, data transmission layer 3, and data transmission layer 4. The CW of one TB can be mapped to the four data transmission layers of 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. At the time of transmission, both antenna panel 1 and antenna panel 2 transmit data transmission layer 1, data transmission layer 2, data transmission layer 3, and data transmission layer 4. Here, one antenna panel corresponds to one transmission reception point (TRP). Each TRP can correspond to one beam direction. The beam directions of each TRP are different.
[0111] In this way, spatial division multiplexing (SDM) is realized by multiple antenna panels using beams in different directions to transmit multiple data transmission layers of one TB. Multiple antenna panels perform transmission simultaneously. If problems such as transmission failure occur for one or more antennas due to the influence of the transmission environment, multiple TRPs perform integrated decoding and the like on the multiple data transmission layers received respectively, and complete data can be obtained. The reliability of transmission is improved.
[0112] In one embodiment, different antenna panels of the terminal transmit the single codeword (CW) of the PUSCH using a single redundant version (RV).
[0113] As shown in FIG. 10, one transport block (TB) corresponds to one CW. One TB can obtain one CW by performing rate matching etc. based on one redundant version. Rate matching is realized by storing the coded bits in a cyclic cache and sequentially reading them from the cyclic cache based on the redundant version each time transmission occurs.
[0114] The RV may be indicated to the terminal by being included in the DCI by the network side.
[0115] In one embodiment, in response to performing non-coordinated joint transmission (NC-JT) of the PUSCH, each of the antenna panels performs individual precoding processing using a precoding matrix corresponding to each of the antenna panels, or or, in response to performing coordinated joint transmission (C-JT) of the PUSCH, all of the antenna panels perform coordinated precoding processing using one precoding matrix.
[0116] When performing NC-JT of the PUSCH, the terminal does not need to cooperate in shaping multiple antenna panels. Each antenna panel can individually precode the data stream to be transmitted, and there is no need to coordinate the relative phases. Each antenna panel can perform individual precoding processing by applying a precoding matrix corresponding to each of the antenna panels for performing NC-JT.
[0117] When performing C-JT for PUSCH, the terminal needs to jointly precode the data transmission layers transmitted by each antenna panel through cooperation among multiple antenna panels, and coordinate the precoding matrices (relative phases) of different transmission points so that the same data transmission layer can be coherently superimposed at the TRP. That is, the sub-arrays of multiple antenna panels are virtualized into a higher-dimensional antenna array to obtain a higher precoding gain. Each antenna panel can apply an integrated precoding matrix to perform cooperative precoding processing for C-JT.
[0118] In one embodiment, in response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, where one of the DMRS port sets includes one or more DMRS ports.
[0119] For NC-JT or C-JT of SFN transmission, the DMRS port sets associated with each TCI may be the same, that is, each antenna panel has the same DMRS ports for performing NC-JT or C-JT using SDM in the same time-domain resource and frequency-domain resource.
[0120] Hereinafter, a specific example is provided in combination with any of the above embodiments.
[0121] Based on the unified TCI framework, N TCI states suitable for simultaneous transmission are set for the terminal, and depending on whether the MP / MTRP beam alignment is established, N different joint TCIs or N separate uplink TCIs can be commonly indicated to the terminal. 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 is directed towards 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.
[0122] If the integrated TCI is not set, it falls back to the 3GPP release 15 / 16 (R15 / 16) indication scheme and uses the spatialRelationInfo1 / 2 indicated by the SRI combination.
[0123] Regarding the support for the number of data transmission layers actually corresponding to each TCI, it is necessary to consider the terminal capabilities. 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 (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.
[0124] SDM transmission based on a single DCI (S-DCI) can realize NC-JT transmission of uplink MTRP with the following scheme.
[0125] Scheme SDM-4: As shown in Figure 9, The data of one TB is transmitted in the same data transmission layer set on the same time-frequency resource of the same slot. Multiple TCIs are associated with one data transmission layer set simultaneously. Multiple TCIs are associated with the corresponding one DMRS port or multiple DMRS port groups assigned simultaneously. Here, the data transmission layer set includes one or more data transmission layers. For example, TCI1 and TCI2 are associated with one data transmission layer or multiple data transmission layers simultaneously, and are associated with the corresponding one DMRS port or multiple DMRS ports assigned, Realize the transmission of a single CW with a single RV, and the encoded bits are transmitted in the same data transmission layer set.
[0126] Each TCI direction performs precoding processing individually, that is, uses an individual precoder in each antenna panel / TRP direction.
[0127] The maximum total number of supported transmission layers: 4 layers, and actually does not exceed min{N_p1, N_p2}. N_p1 and N_p2 are the maximum numbers of data transmission layers supported by two antenna panels of the terminal respectively.
[0128] Scheme SDM-5: As shown in Figure 9, The data of one TB is transmitted in the same data transmission layer set on the same time-frequency resource of the same slot. Multiple TCIs are associated with one data transmission layer set simultaneously. Multiple TCIs are associated with the corresponding one DMRS port or multiple DMRS port groups assigned simultaneously. Here, the data transmission layer set includes one or more data transmission layers. For example, TCI1 and TCI2 are associated with one data transmission layer or multiple data transmission layers simultaneously, and are associated with the corresponding one DMRS port or multiple DMRS ports assigned, Realize the transmission of a single CW with a single RV, and the encoded bits are transmitted in the same data transmission layer set.
[0129] Two TCI directions cooperate to perform pre-coding processing, that is, data transmission of all antenna panels / TRPs uses the same precoder at each data transmission layer.
[0130] The maximum total number of supported transmission layers is 4 layers, and actually does not exceed min{N_p1, N_p2}. N_p1 and N_p2 are respectively the maximum numbers of data transmission layers supported by two antenna panels of the terminal.
[0131] The embodiment of the present invention further provides a PUSCH setting device, as shown in FIG. 11, which is applied to a network-side device and / or a terminal of cellular mobile wireless communication. Here, the device 100 includes A processing module 110 configured to set different transmission configuration instructions (TCI) for different antenna panels of a terminal for single-frequency network (SFN) transmission of uplink PUSCH, where the TCI is associated with beam information, and different TCIs are simultaneously associated with the same transmission resource. Here, the transmission resource includes a time-domain resource and a frequency-domain resource. Here, the processing module 110 includes a plurality of different antenna panels that perform SFN transmission of the PUSCH by spatial division multiplexing (SDM).
[0132] In one embodiment, the SFN transmission of the PUSCH is Non-coherent joint transmission (NC-JT) of the SFN, and Coherent joint transmission (NC-JT) of the SFN, including one of them.
[0133] In one embodiment, the data transmission layer sets associated with different TCIs are the same. Here, one of the data transmission layer sets includes one or more data transmission layers.
[0134] In one embodiment, different antenna panels of the terminal perform transmission of a single codeword (CW) corresponding to one transport block (TB) of the PUSCH, where the single CW is associated with one of the data transmission layer sets.
[0135] In one embodiment, different antenna panels of the terminal perform transmission of the single codeword (CW) of the PUSCH using a single redundancy version (RV).
[0136] In one embodiment, in response to performing NC-JT of the PUSCH, each antenna panel performs individual precoding processing using a precoding matrix corresponding to each antenna panel respectively, or Or, in response to performing C-JT of the PUSCH, all antenna panels perform coordinated precoding processing using one precoding matrix.
[0137] In one embodiment, when performing transmission of the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N - p1, N - p2, … N - pX}, where X is the total number of antenna panels of the terminal, N - px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer less than or equal to X.
[0138] In one embodiment, in response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, where one DMRS port set includes one or more DMRS ports.
[0139] In one embodiment, different TCIs correspond to different transmit and receive point (TRP) directions of the base station.
[0140] 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.
[0141] In one embodiment, the TCI is integrated TCI, spatial relation information (SRI), sounding reference signal resource indication (SRI), and includes one of them.
[0142] In one embodiment, whether the different integrated TCIs are carried by different TCI indication fields, or the different integrated TCIs are carried by one TCI indication field.
[0143] In one embodiment, the integrated TCI is joint TCI, separate TCI, and includes one of them.
[0144] In one embodiment, the PUSCH is PUSCH scheduled by downlink control information (DCI), scheduling-free type 1 configured grant (CG) PUSCH, scheduling-free type 2 CG PUSCH, and includes at least one of them.
[0145] In one embodiment, the TCI is radio resource control (RRC) signaling, media access control control element (MAC-CE) signaling, DCI signaling, and is included in at least one of them.
[0146] In an exemplary embodiment, the processing module 110 may be implemented by one or more central processing units (CPUs), graphics processing units (GPUs), baseband processors (BPs), application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontroller units (MCUs), microprocessors, or other electronic components to execute the above method.
[0147] FIG. 12 is a block diagram of an apparatus 3000 for PUSCH configuration shown by 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, or the like.
[0148] Referring to FIG. 12, the apparatus 3000 may include 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, one or more components.
[0149] The processing component 3002 generally controls the overall operation of the device 3000, such as operations related to display, phone calls, data communication, camera operations, and recording operations. The processing component 3002 can include one or more processors 3020 for executing instructions to complete all or some of the steps of the above method. Note that the processing component 3002 can include one or more modules to facilitate interaction with other components. For example, the processing component 3002 can include a multimedia module to facilitate the interaction between the multimedia component 3008 and the processing component 3002.
[0150] The memory 3004 is configured to store various types of data to support the operation of the device 3000. Examples of these data include instructions for any application program or method for operating the device 3000, contact data, phone book data, messages, images, videos, etc. The memory 3004 can be realized by any type of volatile or non-volatile storage device or a 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.
[0151] The power component 3006 provides power to various components of the device 3000. The power component 3006 can include a power management system, one or more power sources, and other components related to the generation, management, and distribution of power for the device 3000.
[0152] The multimedia component 3008 includes a screen that provides one output interface between the device 3000 and the user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). When the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can detect not only the boundaries of touch or slide operations but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 3008 includes one front camera and / or rear camera. When the device 3000 is in an operation mode such as a shooting mode or a video mode, the front camera and / or rear camera can 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 capabilities.
[0153] 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 calling mode, a recording mode, and a voice recognition mode. The received audio signal 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.
[0154] The I / O interface 3012 provides an interface between the processing component 3002 and the peripheral interface module, and the peripheral interface module may be, for example, a keyboard, a click wheel, buttons, etc. These buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.
[0155] The sensor component 3014 includes one or more sensors to provide state evaluation of the device 3000 in various aspects. For example, the sensor component 3014 can detect the on / off state of the device 3000 and the relative positioning of components. For example, the components are the display and keypad of the device 3000, and the sensor component 3014 can further detect a change in the position of the device 3000 or one component of the device 3000, the presence or absence of contact between the user and the device 3000, the direction and position of the device 3000, or acceleration / deceleration and temperature changes of the device 3000. The sensor component 3014 can also include a proximity sensor configured to detect the presence of nearby objects 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 in 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.
[0156] 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.
[0157] In an exemplary embodiment, the device 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 execute the above method.
[0158] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as a memory 3004 containing instructions, is further provided, and the above instructions may be executed by a processor 3020 of the device 3000 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, or optical data storage device.
[0159] After considering the specification and practicing the invention disclosed in the specification, those skilled in the art can easily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or appropriate changes of the present disclosure, and these variations, uses, or appropriate changes comply with the general principles of the present disclosure and include well-known common general knowledge or conventional technical means in the art not disclosed in the present disclosure. The specification and examples are regarded as merely illustrative, and the true scope and spirit of the present disclosure are pointed out by the following claims.
[0160] 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 changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A method for configuring a Physical Uplink Shared Channel (PUSCH), comprising: For single-frequency network (SFN) transmission of an uplink PUSCH, setting different Transmission Configuration Indications (TCIs) for different antenna panels of a terminal, wherein the TCI is associated with beam information, different TCIs are simultaneously associated with the same transmission resource, the transmission resource includes a time-domain resource and a frequency-domain resource, and different antenna panels perform SFN transmission of the PUSCH by spatial division multiplexing (SDM). A PUSCH configuration method.
2. The SFN transmission of the PUSCH includes: Non-coherent joint transmission (NC-JT) of the SFN; and Coherent joint transmission (C-JT) of the SFN, and includes one of them. The PUSCH configuration method according to Claim 1.
3. The set of data transmission layers associated with different TCIs is the same, and one set of data transmission layers includes one or more data transmission layers. The PUSCH configuration method according to Claim 2.
4. Different antenna panels of the terminal perform transmission of a single codeword (CW) corresponding to one transmission block (TB) of the PUSCH, and the single CW is associated with one set of data transmission layers. The PUSCH configuration method according to Claim 3.
5. Different antenna panels of the terminal perform transmission of the single codeword (CW) of the PUSCH using a single redundancy version (RV). The PUSCH configuration method according to Claim 3.
6. In response to performing NC-JT of the PUSCH, each antenna panel performs individual precoding processing using a precoding matrix corresponding to each antenna panel respectively, or Or In response to performing C-JT of the PUSCH, all antenna panels perform coordinated precoding processing using one precoding matrix. The PUSCH configuration method according to Claim 3.
7. When performing transmission of the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N - p1, N - p2,... N - pX}. X is the total number of antenna panels of the terminal, N-px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer less than or equal to X. The PUSCH setting method according to claim 3.
8. In response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, and one of the DMRS port sets includes one or more DMRS ports. The PUSCH setting method according to any one of claims 2 to 7.
9. The different TCIs correspond to different transmit-receive points (TRPs) of the base station. The PUSCH setting method according to any one of claims 1 to 7.
10. 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 9.
11. The TCI integrated TCI, spatial relation information (SRI), sounding reference signal resource indication (SRI), and includes one of them. The PUSCH setting method according to any one of claims 1 to 7.
12. The different integrated TCIs are carried by different TCI indication fields, or The different integrated TCIs are carried by one TCI indication field. The PUSCH setting method according to claim 11.
13. The integrated TCI joint TCI, separate TCI, and includes one of them. The PUSCH setting method according to claim 11.
14. The PUSCH PUSCH scheduled by downlink control information (DCI), type 1 configured grant (CG) PUSCH without scheduling, type 2 CG PUSCH without scheduling, and includes at least one of them. The PUSCH setting method according to any one of claims 1 to 7.
15. The TCI radio resource control (RRC) signaling, media access control control element (MAC-CE) signaling, is included in at least one of DCI signaling. The PUSCH setting method according to any one of claims 1 to 7.
16. A physical uplink shared channel (PUSCH) setting device A processing module configured to set different transmission configuration instructions (TCIs) for different antenna panels of a terminal for single-frequency network (SFN) transmission of an uplink physical uplink shared channel (PUSCH), wherein the TCI is associated with beam information, different TCIs are simultaneously associated with the same transmission resource, the transmission resource includes a time-domain resource and a frequency-domain resource, and a plurality of different antenna panels perform SFN transmission of the PUSCH by spatial division multiplexing (SDM). PUSCH configuration device.
17. The SFN transmission of the PUSCH is Non-coherent joint transmission (NC-JT) of the SFN and Coherent joint transmission (NC-JT) of the SFN, including one of them. The PUSCH configuration device according to claim 16.
18. The data transmission layer sets associated with different TCIs are the same, and one of the data transmission layer sets includes one or more data transmission layers. The PUSCH configuration device according to claim 17.
19. Different antenna panels of the terminal perform transmission of a single codeword (CW) corresponding to one transmission block (TB) of the PUSCH, and the single CW is associated with one of the data transmission layer sets. The PUSCH configuration device according to claim 18.
20. Different antenna panels of the terminal perform transmission of the single codeword (CW) of the PUSCH using a single redundancy version (RV). The PUSCH configuration device according to claim 18.
21. In response to performing NC-JT of the PUSCH, each antenna panel performs individual precoding processing using a precoding matrix corresponding to each antenna panel, or Or In response to performing C-JT of the PUSCH, all antenna panels perform coordinated precoding processing using one precoding matrix. The PUSCH configuration device according to claim 18.
22. When performing transmission of the PUSCH, the maximum number of data transmission layers used by each antenna panel of the terminal is min{N - p1, N - p2,... N - pX}. X is the total number of antenna panels of the terminal, N-px is the maximum number of data transmission layers supported by the x-th antenna panel, and x is a positive integer not greater than X. The PUSCH setting device according to claim 18.
23. In response to performing NC-JT or C-JT of the PUSCH, the demodulation reference signal (DMRS) port sets associated with different TCIs are the same, and one of the DMRS port sets includes one or more DMRS ports. The PUSCH setting device according to any one of claims 16 to 22.
24. Different TCIs correspond to different transmission and reception points (TRPs) of the base station. The PUSCH setting device according to any one of claims 16 to 22.
25. 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 24.
26. The TCI integrated TCI, spatial relationship information (SRI), sounding reference signal resource indication (SRI), and includes one of them. The PUSCH setting device according to any one of claims 16 to 22.
27. Are different integrated TCIs carried by different TCI indication fields, Or, Different integrated TCIs are carried by one TCI indication field. The PUSCH setting device according to claim 26.
28. The integrated TCI joint TCI, separate TCI, and includes one of them. The PUSCH setting device according to claim 26.
29. The PUSCH PUSCH scheduled by downlink control information (DCI), type 1 configured grant (CG) PUSCH without scheduling, type 2 CG PUSCH without scheduling, and includes at least one of them. The PUSCH setting device according to any one of claims 16 to 22.
30. The TCI radio resource control (RRC) signaling, media access control control element (MAC-CE) signaling, DCI signaling, and is included in at least one of them. The PUSCH setting device according to any one of claims 16 to 22.
31. A communication device A processor, a memory, and an executable program stored in the memory and executable by the processor. When the processor executes the executable program, it executes the steps of the physical uplink shared channel (PUSCH) setting method according to any one of claims 1 to 15. A communication device. **Claim 32** A storage medium storing an executable program, When the executable program is executed by a processor, the steps of the physical uplink shared channel (PUSCH) setting method according to any one of claims 1 to 15 are realized. A storage medium.
Citation Information
Patent Citations
Terminal and wireless communication method
WO2021090403A1
Pusch multiple TRP reliability with UL TCI indication
WO2021198988A1
Terminal, wireless communication method, and base station
WO2022074822A1
Terminal, wireless communication method, and base station
WO2022149274A1