Resource updating method and device

Abstract

An embodiment of the present application discloses a resource updating method and apparatus, the method comprising: a terminal device receiving a first physical downlink control channel (PDCCH), the first PDCCH being carried on a beam corresponding to beam information recommended by the terminal device; and the terminal device updating a first resource based on the beam information within a first time duration, the first resource including spatial domain information of a first channel and / or a first signal. The present application provides a technical solution for updating spatial domain information of channel and / or signal resources, so that after receiving the first PDCCH as a response, the terminal device updates the spatial domain information of the channel and / or signal resources according to the beam information recommended by the terminal device, thereby improving system performance.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a resource updating method and device. Background Art

[0002] In order to solve the problem of narrow beam, the mechanism of Beam Failure Recovery (BFR) or link recovery process is introduced in NR. Due to the rapid change of the channel, the quality of the beam received by the terminal will fluctuate. When the terminal finds that the quality of the received beam is lower than a certain threshold and the frequency of occurrence reaches the predetermined condition, the BFR process of the terminal will be triggered. Specifically, when the terminal finds that the beam fails, the terminal will send PRACH as a resource update request on the Physical Random Access Channel (PRACH) resource configured by the high-level signal, and then receive the Physical Downlink Shared Channel (PDCCH) as the base station's response to the resource update request. The high-level signaling will configure the search space for the terminal to receive the resource update response and its associated control resource set (CORESET). No other search space will be configured on the CORESET. When the terminal receives the PDCCH of the resource update response, it assumes that the demodulation reference signal (DMRS) of the PDCCH is the same as a high-level configured index q. new The Channel State Information Reference Signal (CSI-RS) or Synchronization Signal and Physical Broadcast Channel block (SS / PBCH block) (SSB for short) is quasi co-located (QCL). new It is an index selected by the terminal device from the candidate beam index configured by the high layer, and the terminal implicitly sets q new Recommended to the network side.

[0003] The BFR process was extensively studied in Release 15 (R15) and Release 16 of the IEEE 802.11ac protocol. Release 15 focused on BFR for special cells (sPCells), which include primary cells (PCells) and primary secondary cells (PSCells). Release 16 focused on BFR for secondary cells (SCells).

[0004] Currently, NR Rel-16 supports multi-transmission and reception point (multi-TRP) transmission, and supports simultaneous communication between terminals and multiple TRPs. Furthermore, the protocol supports mutli-TRP transmission triggered or scheduled based on a single downlink control information (DCI), and also supports multi-TRP transmission triggered or scheduled based on multiple DCIs. In the multi-TRP transmission scenario based on multiple DCI triggers or schedules, it can be divided into two types of CORESETs. The first CORESETs refers to a CORESET that is not configured with a CORESET Pool Index or a CORESET Pool Index that is configured with a value of 0. The second CORESETs refers to a CORESET that is configured with a CORESET Pool Index that is configured with a value of 1. Among them, the first CORESETs and the second CORESETs correspond to different TRPs respectively.

[0005] However, the current protocol's link recovery process is specific to cells, and no standardization has been performed for the link recovery process (or beam recovery process) in multi-TRP scenarios. Therefore, supporting a TRP-oriented link recovery process to enable rapid recovery of each TRP link in a multi-TRP transmission scenario, especially the update of airspace information after the terminal device receives a response from the TRP, is an urgent issue to be addressed. Summary of the Invention

[0006] An embodiment of the present application provides a resource update method and apparatus that can update channel and / or signal resource spatial domain information after a terminal device receives a first PDCCH sent by a TRP, thereby improving system performance.

[0007] In a first aspect, an embodiment of the present application provides a resource updating method, the method comprising:

[0008] The terminal device receives a first physical downlink control channel PDCCH, where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device;

[0009] The terminal device updates the first resource based on the beam information within a first time period, where the first resource includes spatial domain information of the first channel and / or the first signal.

[0010] In a second aspect, an embodiment of the present application provides a resource updating device, the device comprising:

[0011] a transceiver unit, configured to receive a first physical downlink control channel (PDCCH), where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device;

[0012] An updating unit is configured to update a first resource based on the beam information within a first time period, where the first resource includes spatial domain information of a first channel and / or a first signal.

[0013] In a third aspect, an embodiment of the present application provides a terminal device, which includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing some or all of the steps described in the method described in the first aspect above.

[0014] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute some or all of the steps described in the method described in the first aspect above.

[0015] In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps described in the method described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

[0016] It can be seen that in an embodiment of the present application, a terminal device receives a first physical downlink control channel PDCCH, and the first PDCCH is carried on a beam corresponding to the beam information recommended by the terminal device; the terminal device updates a first resource based on the beam information within a first time period, and the first resource includes spatial domain information of a first channel and / or a first signal. The present application provides a technical solution for updating spatial domain information of channel and / or signal resources, so that after receiving the first PDCCH as a response, the terminal device updates the spatial domain information of the channel and / or signal resources according to the beam information recommended by the terminal device, thereby improving system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the present application;

[0019] Figure 2 This is a flow chart of a resource updating method provided in an embodiment of the present application;

[0020] Figure 3 A block diagram of the functional units of a resource updating device provided in an embodiment of the present application;

[0021] Figure 4 This is a structural diagram of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solution in this application will be described below with reference to the accompanying drawings.

[0023] It should be understood that the technical solutions provided in the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, 5G communication system (such as New Radio (NR)), and the 5G mobile communication system includes a non-standalone (NSA) 5G mobile communication system and / or a standalone (SA) 5G mobile communication system. The technical solutions provided in the present application can also be applied to communication systems that integrate multiple communication technologies (such as a communication system that integrates LTE technology and NR technology), or to various new communication systems in the future, such as 6G communication systems, 7G communication systems, etc., which are not limited in the embodiments of the present application. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything communication architecture, etc.

[0024] The TRP involved in the embodiments of the present application can be a base station (BS), which can also be called a base station device, which is a device deployed in a wireless access network to provide wireless communication functions. For example, the equipment that provides base station functions in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), the equipment that provides base station functions in a 3G network includes a node B (NodeB) and a radio network controller (RNC), the equipment that provides base station functions in a 4G network includes an evolved node B (eNB), in a wireless local area network (WLAN), the equipment that provides base station functions is an access point (AP), the equipment that provides base station functions in 5G new radio (NR) includes a further evolved node B (gNB), and the equipment that provides base station functions in future new communication systems, etc.

[0025] The embodiments of the present application relate to a terminal device including a device with wireless communication function, and the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in a smart home, etc. The terminal device may also be a handheld device with wireless communication function, an in-vehicle device, a wearable device, a computer device, or other processing device connected to a wireless modem, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile communication network (PLMN), etc. Terminal devices in different networks may be called different names, such as: user equipment, access terminal, user unit, user station, mobile station, mobile station (Mobile Station, MS), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, cellular phone, cordless phone, Session Initiation Protocol (Session Initiation Protocol, SIP) phone, Wireless Local Loop (Wireless Local Loop, WLL) station, Personal Digital Assistant (Personal Digital Assistant, PDA), 5G network or terminal equipment in future evolution network, etc. The embodiments of the present application are not limited to this.

[0026] See also Figure 1 , Figure 1 1 is a schematic diagram of a wireless communication system 100 proposed in an embodiment of the present application. Figure 1 As shown, the wireless communication system 100 may include a terminal device and multiple TRPs, each of which can communicate with the terminal device. The embodiment of the present application defines the unidirectional communication link from the TRP to the terminal device as a downlink (DL), the data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called the downlink direction; and the unidirectional communication link from the terminal device to the TRP is an uplink (UL), the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called the uplink direction.

[0027] It should be understood that the "at least one" involved in the embodiments of the present application refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0028] Furthermore, unless otherwise indicated, ordinal numbers such as "first" and "second" in the embodiments of this application are used to distinguish multiple objects and are not used to define the order, timing, priority, or importance of multiple objects. For example, the first information and the second information are only used to distinguish different information and do not indicate differences in content, priority, transmission order, or importance between the two information.

[0029] The "network" and "system" in the embodiments of this disclosure express the same concept. The communication system is the communication network. The "connection" in the embodiments of this disclosure refers to various connection methods such as direct connection or indirect connection, such as connecting different devices through a communication interface, without any limitation.

[0030] NR Rel-16 supports multi-TRP-based transmission, that is, it supports communication between terminal devices and one or more TRPs. However, the current protocol link recovery process is for cells, and no standardization work has been done on the link recovery process (or beam recovery process) for multi-TRP scenarios. Therefore, supporting the TRP-oriented link recovery process and achieving rapid recovery of each TRP link in the multi-TRP transmission scenario, especially the update of airspace information after the terminal device receives the response sent by the TRP, is an urgent problem to be solved.

[0031] In order to solve the above problems, the present application proposes a resource update method, wherein a terminal device receives a first physical downlink control channel PDCCH, and the first PDCCH is carried on a beam corresponding to the beam information recommended by the terminal device; the terminal device updates a first resource based on the beam information within a first time period, and the first resource includes spatial domain information of a first channel and / or a first signal. The present application provides a technical solution for updating spatial domain information of channel and / or signal resources, so that after receiving the first PDCCH as a response, the terminal device updates the spatial domain information of the channel and / or signal resources according to the beam information recommended by the terminal device, thereby improving system performance.

[0032] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0033] See also Figure 2 , Figure 2 A schematic diagram of a resource updating method provided in an embodiment of the present application is applied to Figure 1 The communication system shown in FIG. Figure 2 As shown, the resource update method includes the following steps:

[0034] S210. The terminal device receives a first physical downlink control channel PDCCH, where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device.

[0035] Among them, the terminal device supports multi-TRP transmission, that is, a DCI can include QCL configurations corresponding to multiple TRPs. The PDCCH configuration consists of two parts: the CORESET and the search space set configuration. The CORESET mainly configures the resource location where the PDCCH is located, including frequency domain resources, resource mapping method, resource particle group bundle (REG bundle) size, etc. The search space set mainly configures the detection period, detection offset value, detection time length, aggregation level, and the number of PDCCH candidate sets for each aggregation level.

[0036] In a possible embodiment, the first PDCCH is a PDCCH scrambled by a cell radio network temporary identifier C-RNTI or MCS-C-RNTI;

[0037] The terminal device receives a first physical downlink control channel PDCCH, including: the terminal device receives RecoverySearchSpaceId, and determines the first PDCCH from a search space corresponding to the RecoverySearchSpaceId.

[0038] Among them, after sending PRACH, the terminal device waits for the beam failure recovery response sent by TRP. The beam failure recovery response includes TRP sending a PDCCH scrambled with a cell radio network temporary identifier (C-RNTI) or a modulation and coding scheme cell radio network temporary identifier (MCS-C-RNTI) in the search space provided by the higher-layer parameter recoverySearchSpaceId when the beam failure is recovered. When a PDCCH scrambled with C-RNTI or MCS-C-RNTI is detected from the search space, it is considered that the Beam Failure Recovery Request is sent successfully and the beam failure recovery process BFR is successfully completed.

[0039] It should be noted that the above-mentioned recoverySearchSpaceId can be configured by the TRP where BFR occurs, or it can be configured by other TRPs, and the embodiments of the present application do not limit this.

[0040] In another possible embodiment, the first PDCCH carries downlink control information DCI, the hybrid automatic repeat request (HARQ) process number of the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) scheduled by the DCI is the same as the HARQ process number of the first PUSCH, and the new data indicator NDI field in the first PDCCH indicates that the PUSCH scheduled by the DCI is new data.

[0041] The PDCCH contains a New Date Indicator (NDI) field, which identifies whether the data to be transmitted corresponds to an initial transmission or a retransmission of previously transmitted data. When transmitting new data, the NDI field changes in the order of 0->1->0->1...; in the case of a retransmission, the NDI field has the same value as the initially transmitted NDI field. Therefore, the TRP can compare the NDI field with the previously transmitted value to determine whether to perform data retransmission.

[0042] In an embodiment of the present application, when the HARQ process number of the DCI-scheduled PUSCH carrying the first PDCCH is the same as the HARQ process number of the first PUSCH, and there is a flipped NDI field value in the first PDCCH, that is, the NDI field value of the first PDCCH is opposite to the NDI field value of the previous PDCCH, it is considered that the Beam Failure Recovery Request is sent successfully and the beam failure recovery process BFR is successfully completed.

[0043] S220. The terminal device updates the first resource based on the beam information within the first time period, where the first resource includes spatial domain information of the first channel and / or the first signal.

[0044] Specifically, after the terminal device receives the TRP's response to the Beam Failure Recovery Request, that is, the first PDCCH, after a certain time, it updates the spatial domain information of the first channel and / or the first signal according to the beam information of the backup beam maintained by the terminal device carried in the Beam Failure Recovery Request.

[0045] Optionally, the TRP corresponding to the first channel and / or the first signal is the same as the TRP associated with the reference signal RS corresponding to the beam information.

[0046] Among them, TRP can configure the correspondence between the Transmission Configuration Indication (TCI) state and the Reference Signal (RS) for the terminal device through Radio Resource Control (RRC) signaling. TCI State is used for the QCL indication of the DMRS of the Physical Downlink Shared Channel (PDSCH) or the QCL indication of the DMRS of the PDCCH, that is, to indicate the downlink beam used by the PDCCH or PDSCH. Each TCI State corresponds to one or more RS Sets, and each RS Set includes multiple RS resources (that is, RS Resource). Each RS Set has a QCL relationship with a DMRS port group (that is, DMRS port group). For example, a TRP uses a DMRS port group, and the DMRS port group has a QCL relationship with an RS Set. Specifically, when TCI is used for QCL indication of PDCCH, a TCI State is notified through RRC signaling or RRC and medium access control (MAC) control element (CE), indicating an RSSet, which has a QCL relationship with the DMRS port of PDCCH, so that the terminal device can know which receiving beam (ie, Rx Beam) to use to receive PDCCH according to the TCI State.

[0047] In an embodiment of the present application, after the terminal device receives the first PDCCH sent by the TRP, the terminal device only updates the spatial domain information of the channel and / or signal associated with the RS corresponding to the beam information of the same TRP, thereby achieving effective update of the spatial domain information of the physical channel and / or signal, avoiding updating of the physical channel and / or signal belonging to another TRP, thereby improving system performance.

[0048] Optionally, the first channel includes at least one of the following: a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH, a physical uplink shared channel PUSCH, a first control resource set COERSET, and CORESET#0, where the first COERSET is the CORESETs corresponding to the secondary cell where beam failure occurs.

[0049] Specifically, the first COERSET is all CORESETs on the Scell indicated in the MAC CE carrying the Scell beam failure information, and CORESET#0 is the CORESET with index number 0 in the Scell and / or Pcell. After receiving the first PDCCH, the terminal device can update at least one of the PUCCH, PDSCH, PUSCH, first COERSET, and CORESET#0 associated with the RS corresponding to the beam information and the same TRP.

[0050] Optionally, the first signal may include a sounding reference signal (SRS), and the usage configuration of the SRS includes a codebook or a non-codebook.

[0051] The SRS usage configuration includes at least two of beam management, antenna switching, codebook-based transmission, and non-codebook-based transmission. In an embodiment of the present application, after a BFR occurs, the terminal device can update the SRS based on the beam information, and the SRS usage is configured as codebook-based or non-codebook-based transmission.

[0052] Optionally, the first duration is the duration from a symbol at a preset position after the last symbol of the first PDCCH to the configuration or activation of the first resource.

[0053] Specifically, the first duration can be the duration from the symbol of the preset position after the terminal device receives the last symbol of the first PDCCH to the full or partial configuration of the first resource, or the first duration can be the duration from the symbol of the preset position after the terminal device receives the last symbol of the first PDCCH to the full or partial activation of the first resource. Partial reconfiguration or partial activation of the first resource can be expressed as TRP reconfiguration or activation of any one or more of the spatial domain information of PUCCH, PDSCH, PUSCH, the first control resource set COERSET, CORESET#0, and SRS.

[0054] Furthermore, the preset position can be preset by the designer or specified by the protocol. For example, the preset position can be 12, 16, 18, 24, 28, 30, 32, etc., which is not limited in the embodiments of the present application.

[0055] It can be seen that the present application proposes a resource update method, wherein a terminal device receives a first physical downlink control channel PDCCH, and the first PDCCH is carried on a beam corresponding to the beam information recommended by the terminal device; the terminal device updates a first resource based on the beam information within a first time duration, and the first resource includes spatial domain information of a first channel and / or a first signal. The present application provides a technical solution for updating spatial domain information of channel and / or signal resources, so that after receiving the first PDCCH as a response, the terminal device updates the spatial domain information of the channel and / or signal resources according to the beam information recommended by the terminal device, thereby improving system performance.

[0056] The above mainly introduces the solution of the embodiment of the present application from the perspective of the execution process of the method side. It is understandable that, in order to realize the above functions, the electronic device includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0057] The embodiment of the present application can divide the functional units of the electronic device according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0058] See also Figure 3 , Figure 3 This is a functional unit block diagram of a resource updating device 300 provided in an embodiment of the present application. The resource updating device 300 is applied to a terminal device. The device 300 includes: a transceiver unit 310 and an update unit 320, wherein:

[0059] The transceiver unit 310 is configured to receive a first physical downlink control channel PDCCH, where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device;

[0060] The updating unit 320 is configured to update the first resource based on the beam information within a first time period, where the first resource includes spatial domain information of the first channel and / or the first signal.

[0061] In a possible embodiment of the present application, the transmitting and receiving point TRP corresponding to the first channel and / or the first signal is the same as the TRP associated with the reference signal RS corresponding to the beam information.

[0062] In a possible embodiment of the present application, the first channel includes at least one of the following: a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH, a physical uplink shared channel PUSCH, a first control resource set COERSET, and CORESET#0, where the first COERSET is the CORESETs corresponding to the secondary cell where beam failure occurs.

[0063] In a possible embodiment of the present application, the first signal includes a sounding reference signal SRS, and the usage configuration of the SRS includes a codebook or a non-codebook.

[0064] In a possible embodiment of the present application, the first PDCCH is a PDCCH scrambled by a cell radio network temporary identifier C-RNTI or an MCS-C-RNTI; the transceiver unit 310 is specifically configured to:

[0065] Receive RecoverySearchSpaceId, and determine the first PDCCH from a search space corresponding to the RecoverySearchSpaceId.

[0066] In a possible embodiment of the present application, the first PDCCH carries downlink control information DCI, the hybrid automatic repeat request HARQ process number of the physical uplink shared channel PUSCH scheduled by the DCI is the same as the HARQ process number of the first PUSCH, and the new data indicator NDI field in the first PDCCH indicates that the PUSCH scheduled by the DCI is new data.

[0067] In a possible embodiment of the present application, the first duration is a duration from a symbol at a preset position after the last symbol of the first PDCCH to the configuration or activation of the first resource.

[0068] It can be understood that the functions of each program module of the resource updating device in the embodiment of the present application can be specifically implemented according to the method in the above method embodiment. The specific implementation process can refer to the relevant description of the above method embodiment and will not be repeated here.

[0069] See also Figure 4 , Figure 4 A terminal device provided in an embodiment of the present application includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs;

[0070] The one or more programs are stored in the memory and configured to be executed by the one or more processors;

[0071] The program includes instructions for performing the following steps:

[0072] receiving a first physical downlink control channel (PDCCH), where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device;

[0073] Within a first time period, first resources are updated based on the beam information, where the first resources include spatial domain information of a first channel and / or a first signal.

[0074] In a possible embodiment of the present application, the transmitting and receiving point TRP corresponding to the first channel and / or the first signal is the same as the TRP associated with the reference signal RS corresponding to the beam information.

[0075] In a possible embodiment of the present application, the first channel includes at least one of the following: a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH, a physical uplink shared channel PUSCH, a first control resource set COERSET, and CORESET#0, where the first COERSET is the CORESETs corresponding to the secondary cell where beam failure occurs.

[0076] In a possible embodiment of the present application, the first signal includes a sounding reference signal SRS, and the usage configuration of the SRS includes a codebook or a non-codebook.

[0077] In a possible embodiment of the present application, the first PDCCH is a PDCCH scrambled by a cell radio network temporary identifier C-RNTI or MCS-C-RNTI; in terms of receiving a first physical downlink control channel PDCCH, the program includes instructions for performing the following steps: receiving RecoverySearchSpaceId, and determining the first PDCCH from the search space corresponding to the RecoverySearchSpaceId.

[0078] In a possible embodiment of the present application, the first PDCCH carries downlink control information DCI, the hybrid automatic repeat request HARQ process number of the physical uplink shared channel PUSCH scheduled by the DCI is the same as the HARQ process number of the first PUSCH, and the new data indicator NDI field in the first PDCCH indicates that the PUSCH scheduled by the DCI is new data.

[0079] In a possible embodiment of the present application, the first duration is a duration from a symbol at a preset position after the last symbol of the first PDCCH to the configuration or activation of the first resource.

[0080] It should be noted that the specific implementation process of the embodiment of the present application can refer to the specific implementation process described in the above method embodiment, and will not be repeated here.

[0081] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments.

[0082] The present application also provides a computer program product comprising a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package.

[0083] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0084] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0086] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0087] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0088] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory and includes several instructions for enabling a computer device (which can be a personal computer, server or TRP, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program code.

[0089] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable memory, which may include: a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0090] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A resource updating method, characterized in that: The method comprises: The terminal device receives a first physical downlink control channel PDCCH, where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device; The terminal device updates the first resource based on the beam information within a first time period, where the first resource includes spatial information of the first channel and / or the first signal, and the transmitting and receiving point TRP corresponding to the first channel and / or the first signal is the same as the TRP associated with the reference signal RS corresponding to the beam information. The first time period is the time period from the symbol of the preset position after the last symbol of the first PDCCH to the configuration or activation of the first resource, and the preset position is 28.

2. The method according to claim 1, characterized in that The first channel includes at least one of the following: a physical uplink control channel PUCCH, a physical downlink shared channel PDSCH, a physical uplink shared channel PUSCH, a first control resource set COERSET, and CORESET#0, where the first COERSET is the CORESETs corresponding to the secondary cell where beam failure occurs.

3. The method according to claim 1 or 2, characterized in that The first signal includes a sounding reference signal (SRS), and the usage configuration of the SRS includes a codebook or a non-codebook.

4. The method according to claim 1 or 2, characterized in that The first PDCCH is a PDCCH scrambled by a cell radio network temporary identifier C-RNTI or MCS-C-RNTI; The terminal device receives a first physical downlink control channel PDCCH, including: The terminal device receives RecoverySearchSpaceId and determines the first PDCCH from the search space corresponding to the RecoverySearchSpaceId.

5. The method according to claim 1 or 2, characterized in that The first PDCCH carries downlink control information DCI, the hybrid automatic repeat request HARQ process number of the physical uplink shared channel PUSCH scheduled by the DCI is the same as the HARQ process number of the first PUSCH, and the new data indicator NDI field in the first PDCCH indicates that the PUSCH scheduled by the DCI is new data.

6. A resource updating device, characterized in that: The device comprises: a transceiver unit, configured to receive a first physical downlink control channel (PDCCH), where the first PDCCH is carried by a beam corresponding to the beam information recommended by the terminal device; An updating unit is used to update a first resource based on the beam information within a first time length, wherein the first resource includes spatial domain information of a first channel and / or a first signal, and the transmitting and receiving point TRP corresponding to the first channel and / or the first signal is the same as the TRP associated with the reference signal RS corresponding to the beam information. The first time length is the time length from the symbol of a preset position after the last symbol of the first PDCCH to the configuration or activation of the first resource, and the preset position is 28.

7. A terminal device, characterized in that: The terminal device includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 5.

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