Transmission configuration method and apparatus

Abstract

Provided in the embodiments of the present application are a transmission configuration method and apparatus. The method comprises: a terminal device receives configuration information used for uplink transmission and / or downlink transmission, wherein the terminal device performs first uplink transmission and first downlink transmission with a first transmission reception point, and / or performs second uplink transmission with a second transmission reception point; and the terminal device is configured with a TCI state used for uplink transmission and a TCI state used for downlink transmission, and / or the terminal device is configured with a beam failure recovery (BFR) operation.

Description

Transmission configuration method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] In NR, multi-transmission reception point (multi-TRP) operation is now supported, including uplink and downlink transmission. Terminal devices can maintain communication links with multiple TRPs. For beam management, the Transmission Configuration Indication (TCI) status can be configured.

[0003] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0004] Summary of the Invention

[0005] However, the inventors found that Release-19 will introduce uplink and downlink asymmetric transmission reception point (asymmetric DL single TRP / UL multi-TRP) operation, but there is currently no specific solution for how to configure beam management, and beam management needs to be enhanced.

[0006] To address at least one of the above problems, an embodiment of the present application provides a transmission configuration method and apparatus.

[0007] According to one aspect of an embodiment of the present application, a transmission configuration method is provided, including:

[0008] The terminal device receives configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0009] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0010] According to another aspect of an embodiment of the present application, a transmission configuration device is provided, including:

[0011] A receiving unit, which receives configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0012] A processing unit configured for TCI state for uplink transmission and TCI state for downlink transmission, and / or the terminal device is configured for beam failure recovery (BFR) operation.

[0013] According to another aspect of an embodiment of the present application, a transmission configuration method is provided, including:

[0014] The network device sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with the first transmission reception point, and / or performs a second uplink transmission with the second transmission reception point;

[0015] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0016] According to another aspect of an embodiment of the present application, a transmission configuration device is provided, including:

[0017] A sending unit, which sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0018] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0019] According to another aspect of an embodiment of the present application, a communication system is provided, including:

[0020] A network device that sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0021] A terminal device configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0022] One of the advantages of the embodiments of the present application is that a terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation. Therefore, even in uplink and downlink asymmetric TRP operation scenarios, appropriate beam management can be performed, thereby improving transmission accuracy and reliability.

[0023] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0024] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0025] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0027] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0028] FIG2 is a schematic diagram of a multi-TRP scenario according to an embodiment of the present application;

[0029] FIG3 is a schematic diagram of a transmission configuration method according to an embodiment of the present application;

[0030] FIG4 is a schematic diagram of a scenario of uplink and downlink asymmetric TRP operation according to an embodiment of the present application;

[0031] FIG5 is a schematic diagram of a transmission configuration method according to an embodiment of the present application;

[0032] FIG6 is a schematic diagram of a transmission configuration device according to an embodiment of the present application;

[0033] FIG7 is a schematic diagram of a transmission configuration device according to an embodiment of the present application;

[0034] FIG8 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0035] FIG9 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0037] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0038] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0039] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0040] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other communication protocols currently known or to be developed in the future.

[0041] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0042] Among them, base stations may include but are not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB) and 5G base station (gNB), etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.), IAB (Integrated Access and Backhaul) nodes or IAB-DU or IAB-donor. The term "base station" may include some or all of their functions, and each base station can provide communication coverage for a specific geographical area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used. The terms "cell" and "base station" can be used interchangeably without causing confusion.

[0043] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), an IAB-MT, a station, and so on.

[0044] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0045] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0046] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0047] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0048] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG1 , a communication system 100 may include a network device 101 and a terminal device 102. For simplicity, FIG1 illustrates only one terminal device and one network device as an example, but the embodiments of the present application are not limited thereto. For example, multiple terminal devices may be provided.

[0049] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal device 102. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0050] Figure 2 is a schematic diagram of a multi-TRP scenario in an embodiment of the present application. A TRP can be part of a network device (e.g., a gNB) that receives signals from a terminal device, or part of a network device (gNB) that sends signals to a terminal device. Furthermore, a TRP can also represent a set of downlink control information (DCI) or a set of reference signals, etc.

[0051] As shown in Figure 2, in the scenario of multi-TRP operation, the terminal device can have panel 1 (pannel-1) and panel 2 (pannel-2); a serving cell can schedule the terminal device from 2 TRPs to provide better physical downlink shared channel (PDSCH) coverage, reliability and / or data rate.

[0052] For multi-TRP operation, there are two different operating modes: single DCI and multi-DCI. In both modes, control of uplink and downlink operations is performed by the physical layer and the media access control (MAC) layer. In single-DCI mode, the terminal device is scheduled by both TRPs using the same DCI; in multi-DCI mode, the terminal device is scheduled by a separate DCI for each TRP.

[0053] In the embodiments of the present application, the signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0054] In the following description, to avoid confusion, the terms "PUCCH" and "physical uplink control channel" or "uplink control information" are interchangeable, and the terms "PUSCH" and "physical uplink data channel" or "uplink data" are also interchangeable. In addition, transmitting or receiving PUCCH can be understood as transmitting or receiving downlink control information carried by PUCCH; transmitting or receiving PUSCH can be understood as transmitting or receiving downlink data carried by PUSCH. The terms "PRACH" and "physical random access channel" or "random access information" are interchangeable. In addition, transmitting or receiving PRACH can be understood as transmitting or receiving random access information carried by PRACH.

[0055] In an embodiment of the present application, the index or identifier of the transmission reception point may include: the index of the control resource pool (control resource pool) corresponding to the transmission reception point, the index or identifier of the transmission reception point, and the index of the reference signal set (RS set) corresponding to the transmission reception point. Therefore, the term "transmission reception point" can also be expressed as "reference signal set" or "control resource pool", etc.

[0056] Embodiments of the first aspect

[0057] An embodiment of the present application provides a transmission configuration method, which is explained from the perspective of a terminal device.

[0058] FIG3 is a schematic diagram of a transmission configuration method according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0059] 301. A terminal device receives configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0060] 302. The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0061] It is worth noting that FIG3 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG3 above.

[0062] FIG4 is a schematic diagram of a scenario of uplink and downlink asymmetric TRP operation in an embodiment of the present application. Uplink and downlink asymmetric TRP operation may also be referred to as asymmetric DL sTRP / UL mTRP (asymmetric DL single TRP / UL multi-TRP) operation. For example, as shown in FIG4 , downlink transmission is based on a single TRP, that is, the UE only receives downlink transmission from one TRP, while uplink transmission is based on multiple TRPs, that is, uplink transmission can be directed to multiple TRPs, such as two TRPs.

[0063] As shown in Figure 4, some UL-only sites (e.g., a second transmission and reception point, hereinafter also referred to as a UL-only TRP or UL-only site) may be deployed in a macro site (e.g., a first transmission and reception point, hereinafter also referred to as a DL / UL TRP or DL / UL site). A macro site is a site with DL / UL, that is, downlink transmissions originate from the macro site, while uplink transmissions can be directed toward the macro site and the UL-only site.

[0064] The above schematically illustrates asymmetric DL sTRP / UL mTRP. The following describes the configuration of the TCI state.

[0065] In some embodiments, at least one of the following TCI state combinations is applied:

[0066] One TCI state is a joint DL / UL TCI state, and the other is a separate UL TCI state.

[0067] All TCI states are separate UL TCI states;

[0068] One TCI state is a separate DL TCI state, and the other is a separate UL TCI state.

[0069] For example, for asymmetric DL sTRP / UL mTRP operation, one or more or all of the following TCI state combinations may apply:

[0070] --One TCI state is a joint DL / UL TCI state, and the other TCI state is a separate UL TCI state;

[0071] --Both TCI states are separate UL TCI states;

[0072] --One TCI state is a separate DL TCI state, and the other TCI state is a separate UL TCI state.

[0073] In some embodiments, the codepoint of the TCI state field in the DCI is mapped to two TCI states, and the MAC CE supports at least one of the following mappings:

[0074] One code point maps two TCI states, one of which is a joint DL / UL TCI state and the other is a separate UL TCI state.

[0075] One code point maps to two TCI states, where both TCI states are separate UL TCI states.

[0076] One code point maps two TCI states, one of which is a separate DL TCI state and the other is a separate UL TCI state.

[0077] One code point is mapped to one TCI state, where the TCI state is a joint DL / UL TCI state, or a separate UL TCI state, or a separate DL TCI state.

[0078] For example, for asymmetric DL sTRP / UL mTRP operation, the code point of the TCI state field in the DCI (e.g., DCI format 1_1 / 1_2) can be mapped to two TCI states. The MAC CE can be enhanced to support one or more or all of the following mappings:

[0079] --One code point can map two TCI states, one of which is a joint DL / UL TCI state and the other is a separate UL TCI state;

[0080] --One code point can map two TCI states, where both TCI states are separate UL TCI states;

[0081] --One code point can map two TCI states, one of which is a separate DL TCI state and the other is a separate UL TCI state;

[0082] --One code point can be mapped to one TCI state, which can be a joint DL / UL TCI state, or a separate DL TCI state, or a separate UL TCI state.

[0083] In one example, an existing MAC CE may be enhanced. In another example, a new MAC CE may be introduced.

[0084] In some embodiments, the TCI state for transmission is selected via a TCI state selection field in the DCI.

[0085] For example, in DCI (eg, DCI format 1_1 / 1_2), a TCI state selection field may be used to select which TCI state to use for transmission.

[0086] In some embodiments, the TCI state for transmission is configured through RRC and / or MAC CE.

[0087] For example, if both TCI states are separate UL TCI states, or if one TCI state is a joint DL / UL TCI state and the other is a separate UL TCI state, or if one TCI state is a separate DL TCI state and the other is a separate UL TCI state, the TCI state selection can be configured through RRC or MAC CE.

[0088] In some embodiments, the TCI state for transmission is indicated by an SRS resource set indicator in the DCI for uplink.

[0089] For example, the TCI state selection may be indicated by an SRS resource set indicator in the DCI (eg, DCI format 0_1 / 0_2) for uplink.

[0090] In some embodiments, the TCI status is used for uplink DCI format indication, wherein an added field or an unused field is used to indicate the TCI status.

[0091] For example, the TCI status can be indicated by an uplink DCI format (e.g., DCI format 0_1 / 0_2), where DCI format 0_1 / 0_2 may or may not schedule PUSCH transmission. A new field can be added for TCI status indication, or an unused field can be repurposed to indicate the TCI status. If the DCI does not schedule PUSCH transmission, the UE provides an acknowledgement of receipt of the DCI.

[0092] For another example, a new field may be added for TCI state selection, or an existing field (eg, SRS resource set indicator) may be used for TCI state selection, or an unused field may be repurposed to indicate TCI state selection.

[0093] In some embodiments, for the TCI state toward the second transmission reception point, the source reference signal is a sounding reference signal (SRS).

[0094] For example, for the TCI state toward the UL-only site, the source reference signal is the SRS.

[0095] The above schematically illustrates the configuration of the TCI state. The following describes the content related to beam failure recovery.

[0096] In some embodiments, scheduling requests (SR) based on beam failure recovery are supported.

[0097] For example, for asymmetric DL sTRP / UL mTRP operation, SR (scheduling request)-based beam failure recovery can be supported.

[0098] In some embodiments, the terminal device is configured for a reference signal set for beam failure detection (BFD) and is configured for two scheduling request resources for beam failure recovery, one scheduling request resource being used for the first transmission receiving point and the other scheduling request resource being used for the second transmission receiving point.

[0099] For example, a reference signal set for beam failure detection (BFD) is configured for the UE, and two SR resources for beam failure recovery (BFR) are configured for the UE, where one SR resource is used for a site with DL and UL (DL / UL site) and the other SR resource is used for a UL-only site (UL-only site).

[0100] In some embodiments, the terminal device is configured for a reference signal set for beam failure detection (BFD) and is configured for a scheduling request resource for beam failure recovery, wherein transmission of the scheduling request resource is switched between the first transmission reception point and the second transmission reception point.

[0101] For example, a reference signal set for beam failure detection (BFD) is configured for the UE, and an SR resource for beam failure recovery (BFR) is configured for the UE, and the transmission of the SR resource can be switched between a site with DL and UL (DL / UL site) and a UL-only site (UL-only site).

[0102] In some embodiments, the terminal device is configured with a reference signal set for beam failure detection (BFD) and is configured with a scheduling request resource for beam failure recovery, and the transmission of the scheduling request resource can be received by the first transmission receiving point and the second transmission receiving point.

[0103] In some embodiments, the terminal device is configured with a reference signal set for beam failure detection (BFD) and a scheduling request resource for beam failure recovery, and the transmission of the scheduling request resource is only received by the first transmission receiving point, or the transmission of the scheduling request resource is only received by the second transmission receiving point.

[0104] In some embodiments, a scheduling request (SR) based on beam failure recovery is not configured in the primary cell (PCell).

[0105] For example, for asymmetric DL sTRP / UL mTRP operation, SR-based beam failure recovery (BFR) operation is not configured on the primary cell (PCell).

[0106] In some embodiments, two-step random access is used to transmit beam failure information; the beam failure information includes a beam failure recovery request and / or candidate beam information.

[0107] For example, for asymmetric DL sTRP / UL mTRP operation, a two-step RACH (e.g., Msg A) can be used to convey beam failure information. The beam failure information can include, for example, a beam failure recovery request and new candidate beam information.

[0108] For another example, Msg A may be sent to a site with DL and UL (DL / UL site) or to a UL-only site (UL-only site). Alternatively, Msg A may be sent to both a site with DL and UL (DL / UL site) and a UL-only site (UL-only site).

[0109] In some embodiments, a physical random access channel (PRACH) is capable of being received and processed by the second transmission reception point. When the terminal device transmits the physical random access channel (PRACH) toward the second transmission reception point, an associated synchronization signal block (SSB) comes from a macro cell of the first transmission reception point.

[0110] For example, for asymmetric DL sTRP / UL mTRP operation, PRACH can be received and processed by the UL-only site. When the UE sends PRACH to the UL-only site, the associated SSB comes from the macro cell.

[0111] In one example, when the UE sends a PRACH to a UL-only site, a TCI state toward the UL-only site may be applied.

[0112] In another example, if dedicated PRACH / contention-based PRACH / two-step PRACH is used to convey the beam failure recovery request, the dedicated PRACH / contention-based PRACH / two-step PRACH can be sent to a site with DL and UL (DL / UL site), or to a UL-only site (UL-only site), or to both a site with DL and UL (DL / UL site) and a UL-only site (UL-only site).

[0113] In one example, when sending dedicated PRACH / contention-based PRACH / two-step PRACH towards a UL-only site, the TCI state towards the UL-only site may be applied. Alternatively, when sending dedicated PRACH / contention-based PRACH / two-step PRACH towards a UL-only site, the new beam identified towards a site with DL and UL (DL / UL site) may be applied.

[0114] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0115] As can be seen from the above embodiments, the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation. Therefore, even in uplink and downlink asymmetric TRP operation scenarios, appropriate beam management can be performed, which can improve transmission accuracy and reliability.

[0116] Embodiments of the second aspect

[0117] The embodiment of the present application provides a transmission configuration method, which is described from the perspective of a network device. The embodiment of the second aspect can be combined with the embodiment of the first aspect, and the same contents as the embodiment of the first aspect will not be repeated.

[0118] FIG5 is a schematic diagram of a transmission configuration method according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0119] 501, a network device sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0120] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0121] It is worth noting that FIG5 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG5 above.

[0122] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0123] Through the embodiments of the present application, the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation. Therefore, even in uplink and downlink asymmetric TRP operation scenarios, appropriate beam management can be performed, which can improve transmission accuracy and reliability.

[0124] Embodiments of the third aspect

[0125] The embodiment of the present application provides a transmission configuration device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated here.

[0126] FIG6 is a schematic diagram of a transmission configuration device according to an embodiment of the present application. As shown in FIG6 , the transmission configuration device 600 includes:

[0127] A receiving unit 601 receives configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0128] The processing unit 602 is configured for a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured for beam failure recovery (BFR) operation.

[0129] In some embodiments, at least one of the following TCI state combinations is applied:

[0130] One TCI state is a joint DL / UL TCI state, and the other is a separate UL TCI state.

[0131] All TCI states are separate UL TCI states;

[0132] One TCI state is a separate DL TCI state, and the other is a separate UL TCI state.

[0133] In some embodiments, the codepoint of the TCI state field in the DCI is mapped to two TCI states, and the MAC CE supports at least one of the following mappings:

[0134] One code point maps two TCI states, one of which is a joint DL / UL TCI state and the other is a separate UL TCI state.

[0135] One code point maps to two TCI states, where both TCI states are separate UL TCI states.

[0136] One code point maps two TCI states, one of which is a separate DL TCI state and the other is a separate UL TCI state.

[0137] One code point is mapped to one TCI state, where the TCI state is a joint DL / UL TCI state, or a separate UL TCI state, or a separate DL TCI state.

[0138] In some embodiments, the TCI state for transmission is selected through the TCI state selection field in the DCI, or the TCI state for transmission is configured through RRC and / or MAC CE, or the TCI state for transmission is indicated by the SRS resource set indicator in the DCI for uplink.

[0139] In some embodiments, the TCI status is used for uplink DCI format indication, wherein an added field or an unused field is used to indicate the TCI status.

[0140] In some embodiments, for the TCI state toward the second transmission reception point, the source reference signal is a sounding reference signal (SRS).

[0141] In some embodiments, scheduling requests (SR) based on beam failure recovery are supported.

[0142] In some embodiments, the terminal device is configured for a reference signal set for beam failure detection (BFD) and is configured for two scheduling request resources for beam failure recovery, one scheduling request resource being used for the first transmission receiving point and the other scheduling request resource being used for the second transmission receiving point.

[0143] In some embodiments, the terminal device is configured for a reference signal set for beam failure detection (BFD) and is configured for a scheduling request resource for beam failure recovery, wherein transmission of the scheduling request resource is switched between the first transmission reception point and the second transmission reception point.

[0144] In some embodiments, the terminal device is configured with a reference signal set for beam failure detection (BFD) and is configured with a scheduling request resource for beam failure recovery, and the transmission of the scheduling request resource can be received by the first transmission receiving point and the second transmission receiving point.

[0145] In some embodiments, the terminal device is configured with a reference signal set for beam failure detection (BFD) and a scheduling request resource for beam failure recovery, and the transmission of the scheduling request resource is only received by the first transmission receiving point, or the transmission of the scheduling request resource is only received by the second transmission receiving point.

[0146] In some embodiments, a scheduling request (SR) based on beam failure recovery is not configured in the primary cell (PCell).

[0147] In some embodiments, two-step random access is used to transmit beam failure information; the beam failure information includes a beam failure recovery request and / or candidate beam information.

[0148] In some embodiments, a physical random access channel (PRACH) can be received and processed by the second transmission reception point.

[0149] In some embodiments, when the terminal device sends the physical random access channel (PRACH) toward the second transmission reception point, the associated synchronization signal block (SSB) comes from a macro cell of the first transmission reception point.

[0150] In some embodiments, as shown in FIG6 , the transmission configuration apparatus 600 may further include:

[0151] The sending unit 603 sends an uplink transmission to the network device.

[0152] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The transmission configuration device 600 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0153] In addition, for the sake of simplicity, FIG6 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0154] Through the embodiments of the present application, the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation. Therefore, even in uplink and downlink asymmetric TRP operation scenarios, appropriate beam management can be performed, which can improve transmission accuracy and reliability.

[0155] Embodiments of the fourth aspect

[0156] The embodiment of the present application provides a transmission configuration device, which may be, for example, a network device, or one or more components or assemblies configured on the network device, and the contents that are the same as those in the first to third aspects of the embodiment are not repeated here.

[0157] FIG7 is a schematic diagram of a transmission configuration device according to an embodiment of the present application. As shown in FIG7 , the transmission configuration device 700 includes:

[0158] A sending unit 701, which sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0159] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0160] In some embodiments, as shown in FIG7 , the apparatus may further include:

[0161] The receiving unit 702 receives uplink transmission from the terminal device.

[0162] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The transmission configuration device 700 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0163] In addition, for the sake of simplicity, FIG7 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0164] Through the embodiments of the present application, the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation. Therefore, even in uplink and downlink asymmetric TRP operation scenarios, appropriate beam management can be performed, which can improve transmission accuracy and reliability.

[0165] Embodiments of the fifth aspect

[0166] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to fourth aspects of the embodiments will not be repeated.

[0167] In some embodiments, the communication system 100 may include at least:

[0168] A network device that sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0169] A terminal device configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0170] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0171] Figure 8 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 8 , terminal device 800 may include a processor 810 and a memory 820. Memory 820 stores data and programs and is coupled to processor 810. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0172] For example, the processor 810 may be configured to execute a program to implement the transmission configuration method as described in the embodiment of the first aspect. For example, the processor 810 may be configured to perform the following control: receiving configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point; wherein the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with a beam failure recovery (BFR) operation.

[0173] As shown in Figure 8 , the terminal device 800 may further include: a communication module 830, an input unit 840, a display 850, and a power supply 860. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 800 does not necessarily include all of the components shown in Figure 8 , and these components are not essential. Furthermore, the terminal device 800 may also include components not shown in Figure 8 , for which reference may be made to the prior art.

[0174] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0175] Figure 9 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 9 , network device 900 may include a processor 910 (e.g., a central processing unit (CPU)) and a memory 920 ; the memory 920 is coupled to the processor 910 . The memory 920 may store various data and may also store an information processing program 930 , which is executed under the control of the processor 910 .

[0176] For example, the processor 910 may be configured to execute a program to implement the transmission configuration method as described in the embodiment of the second aspect. For example, the processor 910 may be configured to perform the following control: sending configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point; wherein the terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with a beam failure recovery (BFR) operation.

[0177] In addition, as shown in Figure 9, network device 900 may further include: a transceiver 940 and an antenna 950; wherein, the functions of these components are similar to those in the prior art and are not further described here. It is worth noting that network device 900 does not necessarily include all the components shown in Figure 9; in addition, network device 900 may also include components not shown in Figure 9, and reference may be made to the prior art for details.

[0178] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the transmission configuration method described in the embodiment of the first aspect.

[0179] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the transmission configuration method described in the embodiment of the first aspect.

[0180] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the transmission configuration method described in the embodiment of the second aspect.

[0181] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the transmission configuration method described in the embodiment of the second aspect.

[0182] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0183] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0184] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0185] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0186] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0187] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0188] 1. A transmission configuration method, comprising:

[0189] The terminal device receives configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with a first transmission reception point, and / or performs a second uplink transmission with a second transmission reception point;

[0190] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0191] 2. A transmission configuration method, comprising:

[0192] The network device sends configuration information for uplink transmission and / or downlink transmission; wherein the terminal device performs a first uplink transmission and a first downlink transmission with the first transmission reception point, and / or performs a second uplink transmission with the second transmission reception point;

[0193] The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with beam failure recovery (BFR) operation.

[0194] 3. A terminal device comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the transmission configuration method as described in Note 1.

[0195] 4. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the transmission configuration method as described in Note 2.

[0196] 5. A computer program product, comprising at least a computer program, wherein when the computer program is executed by a processor, the terminal device executes the transmission configuration method as described in Note 1.

[0197] 6. A computer program product, comprising at least a computer program, wherein when the computer program is executed by a processor, the network device executes the transmission configuration method as described in Note 2.

Claims

1. A transmission configuration device, comprising: a receiving unit configured to receive configuration information for uplink transmission and / or downlink transmission; The terminal device performs a first uplink transmission and a first downlink transmission with the first transmission reception point, and / or performs a second uplink transmission with the second transmission reception point; A processing unit configured for a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured for beam failure recovery operation.

2. The device according to claim 1, wherein At least one of the following TCI status combinations applies: One TCI state is a combined downlink / uplink TCI state, and the other is a separate uplink TCI state; The TCI status is all independent uplink TCI status; One TCI state is a downlink TCI state only, and the other is an uplink TCI state only.

3. The device according to claim 1, wherein The code points of the TCI state field in the DCI are mapped to two TCI states. The MAC CE supports at least one of the following mappings: One code point maps two TCI states, one of which is a combined downlink / uplink TCI state and the other is a separate uplink TCI state. One code point maps two TCI states, where both TCI states are separate uplink TCI states; One code point maps two TCI states, one of which is a downlink TCI state and the other is an uplink TCI state. One code point maps to one TCI state, where the TCI state is a combined downlink / uplink TCI state, or an uplink TCI state alone, or a downlink TCI state alone.

4. The device according to claim 1, wherein The TCI state for transmission is selected through the TCI state selection field in the DCI, or the TCI state for transmission is configured through the RRC and / or MAC CE, or the TCI state for transmission is indicated by the SRS resource set indicator in the DCI for uplink.

5. The device according to claim 1, wherein The TCI state is used for uplink DCI format indication, wherein an added field or an unused field is used to indicate the TCI state.

6. The device according to claim 1, wherein For the TCI state toward the second transmission reception point, the source reference signal is a sounding reference signal.

7. The device according to claim 1, wherein Scheduling requests based on beam failure recovery are supported.

8. The device according to claim 7, wherein The terminal device is configured with a reference signal set for beam failure detection and two scheduling request resources for beam failure recovery, one scheduling request resource being used for the first transmission receiving point and the other scheduling request resource being used for the second transmission receiving point.

9. The device according to claim 7, wherein The terminal device is configured with a reference signal set for beam failure detection and a scheduling request resource for beam failure recovery, wherein transmission of the scheduling request resource is switched between the first transmission reception point and the second transmission reception point.

10. The device according to claim 7, wherein The terminal device is configured with a reference signal set for beam failure detection and a scheduling request resource for beam failure recovery, wherein transmission of the scheduling request resource is received by the first transmission reception point and the second transmission reception point.

11. The device according to claim 7, wherein The terminal device is configured with a reference signal set for beam failure detection and a scheduling request resource for beam failure recovery, wherein the transmission of the scheduling request resource is received by the first transmission receiving point, or the transmission of the scheduling request resource is received by the second transmission receiving point.

12. The device according to claim 1, wherein The scheduling request based on beam failure recovery is not configured in the primary cell.

13. The device according to claim 1, wherein Two-step random access is used to transmit beam failure information; the beam failure information includes a beam failure recovery request and / or candidate beam information.

14. The device according to claim 1, wherein The physical random access channel can be received and processed by the second transmission reception point.

15. The device according to claim 14, wherein When the terminal device sends the physical random access channel toward the second transmission reception point, the associated synchronization signal block comes from the macro cell of the first transmission reception point.

16. A transmission configuration device, comprising: a sending unit configured to send configuration information for uplink transmission and / or downlink transmission; The terminal device performs a first uplink transmission and a first downlink transmission with the first transmission reception point, and / or performs a second uplink transmission with the second transmission reception point; The terminal device is configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with a beam failure recovery operation.

17. A communication system comprising: A network device that sends configuration information for uplink transmission and / or downlink transmission; The terminal device performs a first uplink transmission and a first downlink transmission with the first transmission reception point, and / or performs a second uplink transmission with the second transmission reception point; A terminal device configured with a TCI state for uplink transmission and a TCI state for downlink transmission, and / or the terminal device is configured with a beam failure recovery operation.

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