Beam indication method, beam indication device and storage medium

Abstract

The invention relates to a beam indication method, a beam indication device and a storage medium. Wherein the network equipment sends first indication information, the terminal receives the first indication information, the first indication information is used for indicating one or more general transmission configuration indication states, and the general transmission configuration indication states comprise uplink and downlink general transmission configuration indication states suitable for uplink and downlink. Or an uplink general transmission configuration indication state suitable for the uplink and / or a downlink general transmission configuration indication state suitable for the downlink. According to the invention, the dynamic indication of the transmission configuration indication state can be realized, and the signaling overhead is reduced.

Description

[0001] The present disclosure is a divisional application of application number 202080004456.9, and the invention name is beam indication method, beam indication device and storage medium. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a beam indication method, a beam indication device and a storage medium. Background Art

[0003] In new wireless technology (New Radio, NR), for example, when the communication frequency band is in frequency range 2, since the high-frequency channel attenuates quickly, in order to ensure the coverage range, beam-based transmission and reception are required.

[0004] In the related art, the beams of the physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH) and various uplink and downlink reference signals are independently indicated. Moreover, PDCCH and PUCCH use the medium access control (MAC) control element (CE) to activate the beam. PDSCH and PUSCH indicate their respective beams through downlink control information (DCI) signaling. At present, in order to reduce signaling overhead, a common beam is used for indication. Common beam can be used to indicate the uplink and downlink channels and / or reference signals of the terminal. However, how to indicate the common beam remains to be studied. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present disclosure provides a beam indication method, a beam indication device and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a beam indication method is provided, which is applied to a terminal, and the beam indication method includes: receiving first indication information, wherein the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0007] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0008] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0009] In one implementation, the first indication field and the second indication field are different.

[0010] In one implementation, the first indication field and the second indication field are the same.

[0011] In one implementation, the first indication field and the second indication field are represented by different bits.

[0012] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0013] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state; the first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0014] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0015] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0016] An indication field in the downlink control signaling used for transmission configuration indication of the physical downlink shared channel dedicated beam indication; an indication field in the downlink control signaling used for indicating the sounding reference signal resource indication; and a newly added indication field in the downlink control signaling.

[0017] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0018] In one embodiment, the beam indication method further includes: receiving second indication information, where the second indication information is used to indicate the channel and / or reference signal to which the general transmission configuration indication state applies.

[0019] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission receiving point.

[0020] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0021] In one implementation, the beam indication method further includes:

[0022] Third indication information is received, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission reception points.

[0023] Fourth indication information is received, where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication state, and a downlink general transmission configuration indication state.

[0024] According to a second aspect of an embodiment of the present disclosure, a beam indication method is provided, which is applied to a network device. The beam indication method includes: sending first indication information, wherein the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0025] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0026] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0027] In one implementation, the first indication field and the second indication field are different.

[0028] In one implementation, the first indication field and the second indication field are the same.

[0029] In one implementation, the first indication field and the second indication field are represented by different bits.

[0030] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0031] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state; the first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0032] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0033] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0034] An indication field in the downlink control signaling used for transmission configuration indication of the physical downlink shared channel dedicated beam indication; an indication field in the downlink control signaling used for indicating the sounding reference signal resource indication; and a newly added indication field in the downlink control signaling.

[0035] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0036] In one embodiment, the beam indication method further includes: sending second indication information, wherein the second indication information is used to indicate the channel and / or reference signal to which the general transmission configuration indication state applies.

[0037] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission receiving point.

[0038] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0039] In one embodiment, the beam indication method further includes: sending third indication information, wherein the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission receiving points.

[0040] In one embodiment, the beam indication method also includes: sending fourth indication information, wherein the fourth indication information is used to indicate that the first indication information is used to indicate at least one of the uplink and downlink general transmission configuration indication state, the uplink general transmission configuration indication state and the downlink general transmission configuration indication state.

[0041] According to a third aspect of an embodiment of the present disclosure, a beam indication device is provided, which is applied to a terminal, and the beam indication device includes: a receiving unit, configured to receive first indication information, and the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0042] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0043] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0044] In one implementation, the first indication field and the second indication field are different.

[0045] In one implementation, the first indication field and the second indication field are the same.

[0046] In one implementation, the first indication field and the second indication field are represented by different bits.

[0047] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0048] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state; the first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0049] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0050] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0051] An indication field in the downlink control signaling used for transmission configuration indication of the physical downlink shared channel dedicated beam indication; an indication field in the downlink control signaling used for indicating the sounding reference signal resource indication; and a newly added indication field in the downlink control signaling.

[0052] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0053] In one implementation, the receiving unit is further used to: receive second indication information, where the second indication information is used to indicate a channel and / or reference signal to which the general transmission configuration indication state is applicable.

[0054] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission receiving point.

[0055] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0056] In one implementation, the receiving unit is further used to: receive third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission receiving points.

[0057] In one embodiment, the receiving unit is further used to: receive fourth indication information, wherein the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication state, and a downlink general transmission configuration indication state.

[0058] According to a fourth aspect of an embodiment of the present disclosure, a beam indication device is provided, which is applied to a network device, and the beam indication device includes: a sending unit, configured to send first indication information, and the first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0059] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0060] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0061] In one implementation, the first indication field and the second indication field are different.

[0062] In one implementation, the first indication field and the second indication field are the same.

[0063] In one implementation, the first indication field and the second indication field are represented by different bits.

[0064] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0065] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state; the first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0066] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0067] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0068] An indication field in the downlink control signaling used for transmission configuration indication of the physical downlink shared channel dedicated beam indication; an indication field in the downlink control signaling used for indicating the sounding reference signal resource indication; and a newly added indication field in the downlink control signaling.

[0069] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0070] In one implementation, the sending unit is further used to: send second indication information, where the second indication information is used to indicate a channel and / or reference signal to which the general transmission configuration indication state is applicable.

[0071] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission receiving point.

[0072] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0073] In one implementation, the sending unit is further used to: send third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission receiving points.

[0074] In one embodiment, the sending unit is further used to: send fourth indication information, wherein the fourth indication information is used to indicate that the first indication information is used to indicate at least one of the uplink and downlink general transmission configuration indication state, the uplink general transmission configuration indication state and the downlink general transmission configuration indication state.

[0075] According to a fifth aspect of an embodiment of the present disclosure, a beam indication device is provided, including:

[0076] a processor; a memory for storing instructions executable by the processor;

[0077] The processor is configured to: execute the beam indication method described in the first aspect or any one of the embodiments of the first aspect.

[0078] According to a sixth aspect of an embodiment of the present disclosure, a beam indication device is provided, including:

[0079] a processor; a memory for storing instructions executable by the processor;

[0080] The processor is configured to: execute the beam indication method described in the second aspect or any one of the embodiments of the second aspect.

[0081] According to the seventh aspect of the embodiments of the present disclosure, a non-temporary computer-readable storage medium is provided. When the instructions in the storage medium are executed by the processor of the mobile terminal, the mobile terminal can execute the beam indication method described in the first aspect or any one of the embodiments of the first aspect.

[0082] According to the eighth aspect of the embodiments of the present disclosure, a non-temporary computer-readable storage medium is provided. When the instructions in the storage medium are executed by a processor of a network device, the network device can perform the beam indication method described in the second aspect or any one of the embodiments of the second aspect.

[0083] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the network device sends the first indication information, and the terminal receives the first indication information. The first indication information is used to indicate one or more general transmission configuration indication states, and the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink, thereby realizing the indication of the general transmission configuration indication state and saving signaling overhead.

[0084] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0086] Figure 1 The invention is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0087] Figure 2 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0088] Figure 3 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0089] Figure 4 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0090] Figure 5 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0091] Figure 6 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0092] Figure 7 The present invention is a flow chart of a beam indication method according to an exemplary embodiment.

[0093] Figure 8 The present invention is a block diagram of a beam indication device according to an exemplary embodiment.

[0094] Fig. 9 The present invention is a block diagram of a beam indication device according to an exemplary embodiment.

[0095] Fig.10 It is a block diagram of a device for beam indication according to an exemplary embodiment.

[0096] Fig.11 It is a block diagram of a device for beam indication according to an exemplary embodiment. DETAILED DESCRIPTION

[0097] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0098] The beam indication method provided by the embodiment of the present disclosure can be applied to Figure 1 In the wireless communication system shown in FIG. Figure 1 As shown, the wireless communication system includes a terminal and a network device. The terminal is connected to the network device through wireless resources and performs data transmission and reception.

[0099] Understandably, Figure 1 The wireless communication system shown is only for schematic illustration. The wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices. Figure 1 The embodiment of the present disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0100] It can be further understood that the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions. The wireless communication system can adopt different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), carrier sense multiple access / collision avoidance (Carrier Sense Multiple Access with Collision Avoidance). According to the capacity, rate, delay and other factors of different networks, the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called new radio network (New Radio, NR). For the convenience of description, the present disclosure sometimes refers to the wireless communication network as a network.

[0101] Furthermore, the network equipment involved in the present disclosure may also be referred to as a wireless access network device. The wireless access network device may be: a base station, an evolved node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in ​​an NR system, or it may also be a component or part of a device constituting a base station. When it is a vehicle-to-everything (V2X) communication system, the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.

[0102] Furthermore, the terminal involved in the present disclosure may also be referred to as a terminal device, a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal, MT), etc., which is a device that provides voice and / or data connectivity to users. For example, the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: a smart phone (Mobile Phone), a pocket computer (Pocket Personal Computer, PPC), a PDA, a personal digital assistant (Personal Digital Assistant, PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0103] In the present disclosure, data transmission between a network device and a terminal is performed based on a beam. In the process of data transmission based on a beam, in order to reduce signaling overhead, a common beam is used to indicate channels and / or reference signals. In the related art, a common beam can be used to separately indicate uplink transmission or downlink transmission, or to jointly indicate uplink transmission and downlink transmission. For example, if a network device indicates a common beam for downlink, then the common beam can be used to indicate the PDSCH and all PDCCHs or a part of the PDCCH (such as a terminal-specific PDCCH (UE dedicated PDCCH)) of the terminal. If a network device indicates a common beam for uplink, then the common beam can be used to indicate the PUSCH and all PUCCHs or a part of the PUCCH of the terminal. If a network device indicates a common beam, then the beam can be used for uplink and downlink channels and / or reference signals of the terminal.

[0104] Among them, the common beam is an indication of which channels and / or reference signals are used, which is indicated by signaling or specified by the standard, and the terminal can know it. However, how the common beam indicates the channels and / or reference signals remains to be studied.

[0105] The embodiment of the present disclosure provides a beam indication method, which indicates one or more common transmission configuration indication states (common TCIstate) through indication information to implement common beam indication.

[0106] In one embodiment, the common TCI state includes a UL&DL common TCI state applicable to uplink (UL) and downlink (DL), or a UL common TCI state applicable to UL and / or a DL common TCI state applicable to DL.

[0107] It can be understood that the common TCI state involved in the embodiments of the present disclosure can be understood to correspond to common beam. Among them, in the embodiments of the present disclosure, common beam and common TCI state are sometimes used interchangeably, DL common beam and DL common TCI state are sometimes used interchangeably, UL common beam and UL common TCI state are sometimes used interchangeably, and UL common beam can also be used interchangeably with UL common SpatialRelationInfo. Those skilled in the art should understand the consistency of their meanings.

[0108] For the convenience of description in the embodiment of the present disclosure, the indication information used to indicate the common TCI state is referred to as the first indication information.

[0109] Figure 2 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 2 As shown, the beam indication method is used in a terminal and includes the following steps.

[0110] In step S11, first indication information is received, where the first indication information is used to indicate one or more common TCIstates.

[0111] Among them, the common TCI state includes the UL&DL common TCI state applicable to UL and DL.

[0112] Among them, the common TCI state can be a UL common TCI state applicable to UL, or the common TCI state can be a DL common TCI state applicable to DL.

[0113] In one example, the first indication information may be used to indicate M DL common TCI states and / or N UL common TCI states, or L UL & DL common TCI states, where M is greater than or equal to 1, N is greater than or equal to 1, and L is greater than or equal to 1.

[0114] It can be understood that in the embodiment of the present disclosure, M=1, N=1, L=1 corresponds to the indication of the common TCI state of a single TRP.

[0115] The beam indication method provided by the embodiment of the present disclosure indicates the UL common TCI state and / or DL ​​common TCI state, or the UL&DL common TCI state through the indication field of the first indication information. When the same TCI state can be applied to both uplink and downlink, the first indication information only needs to indicate the UL&DL common TCI state. When different common TCI states are required for uplink and downlink, a single transmission of the first indication information can indicate a DL common beam, or a UL common beam, or a DL common beam and a UL common beam together.

[0116] In an exemplary embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication information includes a first indication field, wherein the first indication field is used to indicate a UL common TCI state.

[0117] In another exemplary embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication information includes a first indication field, wherein the first indication field is used to indicate a UL&DL common TCI state.

[0118] In another exemplary embodiment, in the beam indication method provided by an embodiment of the present disclosure, the first indication information includes a second indication field. The second indication field is used to indicate a DL common TCI state. In another exemplary embodiment, in the beam indication method provided by an embodiment of the present disclosure, the first indication information includes a second indication field. The second indication field is used to indicate a UL&DL common TCI state.

[0119] In another exemplary embodiment, in the beam indication method provided by an embodiment of the present disclosure, the first indication information includes a first indication field and a second indication field, wherein the first indication field is used to indicate a UL common TCI state, and the second indication field is used to indicate a DL common TCI state.

[0120] The first indication field and the second indication field discussed in the embodiments of the present disclosure are explained by taking the example that the first indication field is used to indicate the UL common TCI state and the second indication field is used to indicate the DL common TCI state. In the embodiments of the present disclosure, since the UL&DL common TCI state will not be indicated separately with the DL common beam, and the UL&DL common TCI state will not be indicated separately with the UL common beam, the first indication field can also be used to indicate the UL&DL common TCI state when it is not necessary to indicate the UL common beam separately; similarly, the second indication field can also be used to indicate the UL&DL common TCI state when it is not necessary to indicate the DL common beam separately. In other words, when only one UL&DL common TCI state is indicated, only one indication field is required.

[0121] In the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field may be in the same DCI format (DCI format) or in different DCI formats.

[0122] In the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field are located in the same DCI format (DCI format), and the first indication field and the second indication field are different, that is, the indication fields of the DL common TCI state and the UL common TCI state are different.

[0123] In one example, the indication fields of the DL common TCI state and the UL common TCI state are different.

[0124] Among them, the first indication field and / or the second indication field may be an indication field of a transmission configuration indication (TCI) for a dedicated beam indication for PDSCH in DCI signaling. The indication field for indicating a sounding reference signal (SRS) resource indication in DCI signaling may be referred to as SRS resource indicator in English. And an indication field newly added in DCI signaling. For example, in a DCI format for downlink scheduling, the second indication field for indicating a DL common TCI state reuses the indication field of a transmission configuration indication TCI for a dedicated beam indication for PDSCH in an existing DCI signaling. The first indication field for indicating a UL common TCI state may be an indication field newly added in DCI. That is, a new indication field for indicating a UL common beam is added to the DCI. Another example may be that different indication fields are added to the DCI in a DCI format for downlink scheduling or uplink scheduling, and the DL common TCI state and the UL common TCI state are respectively indicated by adding new indication fields to indicate the DL common beam and the UL common beam, respectively. For another example, in the DCI format used for uplink scheduling, the first indication field used to indicate the UL common TCI state reuses the indication field used for SRS resource indication in the existing DCI signaling, and the second indication field used to indicate the DL common TCI state can be a newly added indication field in the DCI.

[0125] In one implementation, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are located in the same DCI format, and the first indication field and the second indication field are the same, that is, the indication fields of the DL common TCI state and the UL common TCI state are the same.

[0126] In one example, the indication fields of the DL common TCI state and the UL common TCI state are the same, and the first indication field and the second indication field are represented by different bits.

[0127] The first indication field and / or the second indication field may be one of the following or a combination thereof: an indication field of the transmission configuration indication (TCI) for PDSCH dedicated beam indication in DCI signaling; an indication field for indicating the sounding reference signal (SRS) resource indication in DCI signaling, which may be referred to as SRS resource indicator in English; and an indication field newly added in DCI signaling. For example, the indication field of the DL common TCI state and the UL common TCI state reuses the TCI indication field for PDSCH dedicated beam indication in the existing DCI signaling, and the number of bits may be greater than or equal to the existing number of bits, 3 bits, but the DL common TCI state and the UL common TCI state occupy different bits in the indication field.

[0128] In one embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field are located in the same DCI format, the first indication field and the second indication field are the same, and the first indication field and the second indication field are represented by different bit values ​​of the same bit. The first indication field and / or the second indication field can be one of the following or a combination: an indication field of TCI used for PDSCH dedicated beam indication in DCI signaling; an SRS resource indicator in DCI signaling; and an indication field newly added in DCI signaling. For example, the indication field of DL common TCI state and UL common TCI state reuses the TCI indication field used for PDSCH dedicated beam indication in the existing DCI signaling, and the DL common TCI state and UL common TCI state occupy the same bit in the indication field, and the first indication field and the second indication field are represented by different bit values ​​of the same bit, i.e., codepoint. It should be noted that even if the indication field of TCI used for PDSCH dedicated beam indication is multiplexed or the SRS resource indicator is multiplexed, the number of bits can remain unchanged or increase on the basis of the existing number of bits.

[0129] In one example, in the beam indication method provided by an embodiment of the present disclosure, the DL common TCI state and the UL common TCI state are indicated by bit codewords corresponding to different bit values. The first indication field and / or the second indication field may be one or a combination of the following: an indication field of TCI used for PDSCH dedicated beam indication in DCI signaling; an SRS resource indicator in DCI signaling; and a newly added indication field in DCI signaling. For example, the first bit value is used to characterize the first indication field, and the second bit value is used to characterize the second indication field. There is a first mapping relationship between the bit codeword (code point) corresponding to the first bit value and the UL common TCI state, and / or there is a second mapping relationship between the code point corresponding to the second bit value and the DL common TCI state, and there may also be a third mapping relationship between the bit codeword corresponding to the third bit value and the UL common TCI state.

[0130] In one example, the code point corresponding to the Bit value has a mapping relationship with the DL common TCI state and / or the UL common TCI state, and the mapping relationship is indicated by a Medium Access Control (MAC) control element (CE).

[0131] For example, the indication field contains 3 bits, the code point 000 corresponds to indicating DL common TCI state#0 and UL common TCI state#1, 001 corresponds to indicating DL common TCI state#2, 010 corresponds to indicating UL common TCI state#3, 011 corresponds to indicating DL common TCI state#4 and UL common TCI state#5... Here, the DL common TCI state and UL common TCI state numbers can be jointly numbered or independently numbered without restriction.

[0132] In the beam indication method provided by the embodiment of the present disclosure, a single transmitted DCI is used to indicate a DL common TCI state or a UL common TCI state, that is, the same DCI signaling can indicate a DL common TCI state or a UL common TCI state within the first time. Whether the single transmitted DCI indicates a DL common beam or a UL common beam is indicated by an implicit indication method or an explicit indication method.

[0133] It can be understood that the DCI signaling cannot indicate the DL common beam and the UL common beam at the same time when it is sent once. Of course, it is reasonable to update the downlink common beam when there is downlink data to be transmitted and to update the uplink common beam when there is uplink data to be transmitted.

[0134] In one example, an implicit indication method is used to indicate whether the DCI sent once indicates a DL common beam or a UL common beam. For example, if the DCI signaling in the DCI format used for downlink scheduling indicates downlink resource scheduling, it is used to indicate the DL common beam; if the downlink resource scheduling is not indicated, it can be understood to be used to indicate the UL common beam. Or, for example, the DCI signaling in the DCI format used for downlink scheduling indicates the DL common beam, and the DCI signaling in the DCI format used for uplink scheduling indicates the UL common beam.

[0135] In the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field are located in different DCI formats, that is, the indication fields of the DL common TCI state and the UL common TCI state are in different DCI formats.

[0136] In one example, the indication field for indicating the DL common TCI state in the DCI format used for downlink scheduling can reuse the TCI indication field used for PDSCH dedicated beam indication in the existing DCI signaling or add a new indication field. The indication field for indicating the UL common TCI state in the DCI format used for uplink scheduling can reuse the SRS resource indicator in the existing DCI signaling or add a new indication field, and the new indication field is used to indicate the UL common beam.

[0137] In the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field are located in different DCI formats, and the DCI sent once is used to indicate the DL common TCI state or the UL common TCI state, that is, the same DCI signaling can indicate the DL common TCI state or the UL common TCI state in the first time. Among them, it can be to indicate the DL common beam when there is downlink transmission, and to indicate the UL common beam when there is uplink transmission.

[0138] In the beam indication method provided by the embodiment of the present disclosure, the channel and / or reference signal applicable to the common TCI state can be indicated through indication information.

[0139] For the convenience of description, the indication information used to indicate the channel and / or reference signal to which the common TCI state is applicable is referred to as second indication information.

[0140] Figure 3 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 3 As shown, the beam indication method is used in a terminal, and the method can be executed alone or in combination with other methods in the embodiments of the present disclosure; the method includes the following steps.

[0141] In step S21, second indication information is received, where the second indication information is used to indicate channels and / or reference signals to which the common TCI state is applicable.

[0142] The second indication information may be a radio resource control (Radio Resource Control, RRC) signaling or a MAC CE signaling.

[0143] In one example, the terminal indicates through RRC signaling and / or MAC CE signaling that the DL common TCI state is used to indicate which downlink transmission beams. For example, through RRC signaling and / or MAC CE signaling, the DL common TCI state is used to indicate at least two beams of PDCCH, PDSCH, physical broadcast channel (Physical broadcast channel, PBCH), synchronization signal block (Synchronization Signal Block, SSB), demodulation reference signal (Demodulation Reference Signal, DMRS), channel state information reference signal (channel state information reference signal, CSI-RS), positioning reference signal (Positioning reference signals, PRS), tracking reference signal (tracking reference signal, TRS), etc. For another example, the terminal indicates the reference signal (such as CSI-RS) through RRC signaling and / or MAC CE signaling, and can also indicate its purpose, such as whether it is a CSI-RS for beam measurement or a CSI-RS for channel state information measurement. For another example, for a certain channel, it can also indicate whether it is applicable to all transmissions of the channel or only to the UE specific part. For example, the PDCCH may also indicate whether it is applicable to all PDCCHs or only to UE-specific PDCCHs.

[0144] In another example, when used for uplink transmission, the second indication information indicates which uplink transmission beams are indicated by the UL common TCI state. For example, at least two beams of PUCCH, PUSCH, Physical Random Access Channel (PRACH), SRS, and DMRS are indicated through RRC signaling and / or MAC CE signaling. Similarly, for reference signals, such as SRS, its purpose can also be indicated, such as whether it is an SRS for beam measurement, an SRS for codebook based channel state information measurement, an SRS for non-codebook based channel state information measurement, an SRS for antenna switching, or an SRS for positioning measurement, etc.

[0145] In another exemplary embodiment, the second indication information may also indicate which uplink and downlink transmission beams the uplink and downlink general transmission configuration indication state is used to indicate. For example, the uplink and downlink general transmission configuration indication state is indicated by RRC signaling and / or MAC CE signaling to indicate at least two beams of PDCCH, PDSCH, PUCCH, PUSCH, physical random access channel (PRACH), physical broadcast channel (PBCH), synchronization signal block (SSB), demodulation reference signal (DMRS), channel state information reference signal (CSI-RS), positioning reference signal (PRS), tracking reference signal (TRS), SRS, etc. For another example, the terminal indicates a reference signal (such as CSI-RS) through RRC signaling and / or MAC CE signaling, and can also indicate its purpose, such as whether it is a CSI-RS for beam measurement or a CSI-RS for channel state information measurement. For example, for SRS, its purpose can also be indicated, such as whether it is an SRS for beam measurement, an SRS for codebook based channel state information measurement, an SRS for non-codebook based channel state information measurement, an SRS for antenna switching, or an SRS for positioning measurement. For another example, for a certain channel, it can also indicate whether it is applicable to all transmissions of the channel or only to the UE specific part. For example, for PDCCH, it can also indicate whether it is applicable to all PDCCHs or only to the UE specific PDCCH.

[0146] The beam indication method provided in the embodiment of the present disclosure indicates a common TCI state for a single or multiple TRPs, that is, the common TCI state can be indicated for a single or multiple TRPs through the first indication information. That is, one or more common TCI states are the TCI states of the same TRP. Or one or more common TCI states are the TCI states of multiple TRPs.

[0147] In the beam indication method provided by the embodiment of the present disclosure, the indication information indicates that the first indication information is used to indicate the common TCI state of a TRP, or indicates that the first indication information is used to indicate the common TCIstate of multiple TRPs.

[0148] For the convenience of description, the indication information used to indicate that the first indication information indicates the common TCI state of one or more TRPs is referred to as the third indication information.

[0149] Figure 4 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 4 As shown, the beam indication method is used in a terminal, and the method can be executed alone or in combination with other methods in the embodiments of the present disclosure; the method includes the following steps.

[0150] In step S31, third indication information is received, where the third indication information is used to indicate that the first indication information is used to indicate a common TCI state of one or more TRPs.

[0151] In the beam indication method provided by the embodiment of the present disclosure, the third indication information is used to indicate that the first indication information is used to indicate the common TCI state of a single TRP, that is, to indicate at most one DL common TCI state, at most one UL common TCI state, and at most one UL&DL common TCI state. When the third indication information is used to indicate that the first indication information is used to indicate multiple TRPs, it may be necessary to indicate multiple DL common TCI states, multiple UL common TCI states, and multiple UL&DL common TCI states.

[0152] In one example, the third indication information indicates that the first indication information is used to indicate an indication field for multiple DL common TCI states, which is the same as the indication field for a single DL common TCI state. The code point of the indication field corresponds to one or two DL common TCI states, and the correspondence between the code point and one or two DL commonTCI states is given by MAC CE, similar to the above description.

[0153] In another example, the third indication information indicates that the first indication information is used to indicate an indication field for multiple UL common TCI states, which is the same as the indication field for a single UL common TCI state. The code point of the indication field corresponds to one or two UL common TCI states, and the correspondence between the code point and one or two ULcommon TCI states is given by MAC CE, similar to the above description.

[0154] In another example, the third indication information indicates that the first indication information is used to indicate an indication field for multiple UL&DL common TCI states, which is the same as the indication field for a single UL&DL common TCI state. The code point of its indication field corresponds to one or two UL&DL common TCI states, and the correspondence between the code point and one or two UL&DL common TCI states is given by MAC CE, similar to the above description.

[0155] In the beam indication method provided by the embodiment of the present disclosure, the indication information can be used to indicate whether to use a UL&DL common TCI state or to use DL common TCI state and UL common TCI state separately. It can also be understood that the terminal receives fourth indication information, and the fourth indication information is used to indicate that the first indication information is used to indicate at least one of UL&DL common TCI state, DL common TCI state and UL common TCI state.

[0156] In one example, the fourth indication information may be RRC signaling and / or MAC signaling.

[0157] For example, RRC signaling and / or MAC signaling indicates whether to use a common TCI state, or to use DLcommon TCI state and UL common TCI state separately. For example, MAC CE signaling must activate X TCI states, and can optionally activate Y TCI states, and the bit positions used to activate X TCI states and Y TCI states are different. When only these X TCI states are activated, it indicates a common TCI state, that is, joint DL / UL beamindication, which means that each TCI state in the X TCI states can be used for uplink and downlink. When Y TCI states are also activated, it indicates separate DL / UL beamindication, and X are used for DL ​​and Y are used for UL. The X value and the Y value can be the same. At the same time, RRC and / or MAC signaling indicates at least one item of the bit domain position and number of bits used for common TCI state indication in DCI under different circumstances.

[0158] The beam indication method provided by the embodiment of the present disclosure reduces the signaling overhead through the common beam indication mode, and realizes the separate indication of DL common beam and UL common beam, as well as the dynamic indication method of DL common TCI state and ULcommon TCI state. Among them, it includes the DCI format corresponding to the DL common beam and the UL common beam, the indication field in the DCI signaling, and the indication meaning of the code point of the DCI signaling. Through the beam indication method provided by the present disclosure, the reliability of the DCI signaling is improved and the signaling overhead of the beam indication is reduced.

[0159] Figure 5 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 5 As shown, the beam indication method is used in a network device and includes the following steps.

[0160] In step S41, first indication information is sent, where the first indication information is used to indicate one or more common TCIstates.

[0161] Among them, the common TCI state includes the UL&DL common TCI state applicable to UL and DL.

[0162] Among them, the common TCI state may also be the UL common TCI state applicable to UL, or the common TCI state may also be the DL common TCI state applicable to DL.

[0163] In one implementation, the UL common TCI state and / or DL ​​common TCI state, or the UL & DL common TCI state is indicated by the indication field of the first indication information.

[0164] In an exemplary embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication information includes a first indication field, wherein the first indication field is used to indicate a UL common TCI state or a UL&DL common TCI state.

[0165] In another exemplary embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication information includes a second indication field, wherein the second indication field is used to indicate a DL common TCI state or a UL&DL common TCI state.

[0166] In another exemplary embodiment, in the beam indication method provided by an embodiment of the present disclosure, the first indication information includes a first indication field and a second indication field, wherein the first indication field is used to indicate a UL common TCI state or a UL&DLcommon TCI state, and the second indication field is used to indicate a DL common TCI state or a UL&DL common TCI state.

[0167] In one implementation, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are located in the same DCI format.

[0168] In one implementation, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are different.

[0169] In one implementation, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are the same.

[0170] In an exemplary embodiment, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are the same, and the first indication field and the second indication field are represented by different bits.

[0171] In another exemplary embodiment, in the beam indication method provided by the embodiment of the present disclosure, the first indication field and the second indication field are the same, and the first indication field and the second indication field are represented by different bit values ​​of the same bit.

[0172] In one embodiment, the first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain. There is a first mapping relationship between the code point corresponding to the first bit value and the UL common TCI state, and / or there is a second mapping relationship between the code point corresponding to the second bit value and the DL common TCI state, and / or there is a third mapping relationship between the code point corresponding to the third bit value and the UL common TCI state and the DL common TCI state.

[0173] In one implementation, in an implementation, in the beam indication method provided by an embodiment of the present disclosure, the first indication field and the second indication field are located in different DCI formats.

[0174] In one implementation, the first indication field and / or the second indication field may be one or a combination of the following: an indication field of TCI used for PDSCH dedicated beam indication in DCI signaling; an SRS resource indicator in DCI signaling; and an indication field newly added in DCI signaling.

[0175] In one implementation, a single transmitted DCI is used to indicate a DL common TCI state or a UL common TCI state or a UL&DL common TCI state.

[0176] Figure 6 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 6 As shown, the beam indication method is used in a network device, and the method can be executed alone or in combination with other methods in the embodiments of the present disclosure; the method includes the following steps.

[0177] In step S51, second indication information is sent, where the second indication information is used to indicate channels and / or reference signals to which the common TCI state is applicable.

[0178] The second indication information may be RRC signaling or MAC CE signaling.

[0179] In one example, the terminal indicates through RRC signaling and / or MAC CE signaling which DL common TCI state is used to indicate which downlink transmission beams. And / or, through RRC signaling and / or MAC CE signaling, the terminal indicates through RRC signaling and / or MAC CE signaling which UL common TCI state is used to indicate which uplink transmission beams. And / or, the second indication information may also indicate which uplink and downlink common transmission configuration indication state is used to indicate which uplink and downlink transmission beams.

[0180] The beam indication method provided in the embodiment of the present disclosure indicates a common TCI state for a single or multiple TRPs, that is, the common TCI state can be indicated for a single or multiple TRPs through the first indication information. That is, one or more common TCI states are the TCI states of the same TRP. Or one or more common TCI states are the TCI states of multiple TRPs.

[0181] Figure 7 is a flow chart of a beam indication method according to an exemplary embodiment. Figure 7 As shown, the beam indication method is used in a network device, and the method can be executed alone or in combination with other methods in the embodiments of the present disclosure; the method includes the following steps.

[0182] In step S61, third indication information is sent, where the third indication information is used to indicate that the first indication information is used to indicate a common TCI state of one or more TRPs.

[0183] Among them, the third indication information is used to indicate that the first indication information is used to indicate the common TCIstate of a single TRP, that is, it indicates at most one DL common TCI state, at most one UL common TCI state, and at most one UL&DL common TCI state. When the third indication information is used to indicate that the first indication information is used to indicate multiple TRPs, it may be necessary to indicate multiple DL common TCI states and / or multiple UL common TCI states, or multiple UL&DLcommon TCI states.

[0184] In the beam indication method provided by the embodiment of the present disclosure, the indication information can be used to indicate whether to use a UL&DL common TCI state or to use the DL common TCI state and the UL common TCI state separately. It can also be understood that the network device sends a fourth indication information, and the fourth indication information is used to indicate that the first indication information is used to indicate at least one of the UL&DL common TCI state, the DL common TCI state and the UL common TCI state.

[0185] In one example, the fourth indication information may be RRC signaling and / or MAC signaling.

[0186] The beam indication method provided by the embodiment of the present disclosure reduces the signaling overhead through the common beam indication mode, and realizes the separate indication of DL common beam and UL common beam, as well as the dynamic indication method of DL common TCI state and ULcommon TCI state. Among them, it includes the DCI format corresponding to the current DL common beam and UL common beam, the indication field in the DCI signaling, and the indication meaning of the code point of the DCI signaling. Through the beam indication method provided by the present disclosure, the reliability of the DCI signaling is improved and the signaling overhead of the beam indication is reduced.

[0187] It can be understood that the beam indication method applied to the network device provided in the embodiment of the present disclosure is similar to the common beam indication mode of the terminal, and the similarities are not repeated here.

[0188] It can be further understood that the beam indication method provided in the embodiment of the present disclosure can be applied to the implementation process of the interaction between the terminal and the network device to implement the beam indication. In the method for the interaction between the terminal and the network device to implement the beam indication, the terminal and the network device each have the relevant functions of implementing the above embodiment, which will not be repeated here.

[0189] It should be noted that those skilled in the art can understand that the various implementation methods / embodiments involved in the embodiments of the present disclosure can be used in conjunction with the aforementioned embodiments or can be used independently. Whether used alone or in conjunction with the aforementioned embodiments, the implementation principle is similar. In the implementation of the present disclosure, some embodiments are described in terms of implementation methods used together; of course, those skilled in the art can understand that such examples are not limitations of the embodiments of the present disclosure.

[0190] Based on the same concept, an embodiment of the present disclosure also provides a beam indication device.

[0191] It is understandable that the beam indication device provided by the embodiment of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiment of the present disclosure, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.

[0192] Figure 8 is a block diagram of a beam indication device according to an exemplary embodiment. Figure 8 The beam indication device 100 is applied to a terminal and includes a receiving unit 101.

[0193] The receiving unit 101 is configured to receive first indication information, where the first indication information is used to indicate one or more general transmission configuration indication states, where the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0194] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0195] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0196] In one implementation, the first indication field and the second indication field are different.

[0197] In one implementation, the first indication field and the second indication field are the same.

[0198] In one implementation, the first indication field and the second indication field are represented by different bits.

[0199] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0200] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state. The first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0201] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0202] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0203] The indication field used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication in the downlink control signaling. The indication field used for indicating the sounding reference signal resource indication in the downlink control signaling. And the newly added indication field in the downlink control signaling.

[0204] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0205] In one implementation, the receiving unit 101 is further used to: receive second indication information, where the second indication information is used to indicate a channel and / or reference signal to which the general transmission configuration indication state is applicable.

[0206] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission reception point.

[0207] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0208] In one implementation, the receiving unit 101 is further used to: receive third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission reception points.

[0209] In one embodiment, the receiving unit 101 is further used to: receive fourth indication information, wherein the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication state, and a downlink general transmission configuration indication state.

[0210] Fig. 9 is a block diagram of a beam indication device according to an exemplary embodiment. Fig. 9 The beam indication device 200 is applied to a network device, and the beam indication device 200 includes a sending unit 201.

[0211] The sending unit 201 is configured to send first indication information, where the first indication information is used to indicate one or more general transmission configuration indication states, where the general transmission configuration indication state includes an uplink and downlink general transmission configuration indication state applicable to uplink and downlink, or an uplink general transmission configuration indication state applicable to uplink and / or a downlink general transmission configuration indication state applicable to downlink.

[0212] In one embodiment, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate an uplink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state, and the second indication field is used to indicate a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0213] In one implementation, the first indication field and the second indication field are located in the same downlink control information DCI format.

[0214] In one implementation, the first indication field and the second indication field are different.

[0215] In one implementation, the first indication field and the second indication field are the same.

[0216] In one implementation, the first indication field and the second indication field are represented by different bits.

[0217] In one implementation, the first indicator field and the second indicator field are represented by different bit values ​​of the same bit.

[0218] In one embodiment, there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink general transmission configuration indication state, and / or there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink general transmission configuration indication state. The first bit value is used to represent the first indication domain, and the second bit value is used to represent the second indication domain.

[0219] In one implementation, the first indication field and the second indication field are located in different downlink control information DCI formats.

[0220] In one implementation, the first indication field and / or the second indication field is one or a combination of the following:

[0221] The indication field used for the transmission configuration indication of the physical downlink shared channel dedicated beam indication in the downlink control signaling. The indication field used for indicating the sounding reference signal resource indication in the downlink control signaling. And the newly added indication field in the downlink control signaling.

[0222] In one implementation, the downlink control signaling sent once is used to indicate an uplink general transmission configuration indication state or a downlink general transmission configuration indication state or an uplink and downlink general transmission configuration indication state.

[0223] In one implementation, the sending unit 201 is further used to: send second indication information, where the second indication information is used to indicate a channel and / or reference signal to which the general transmission configuration indication state is applicable.

[0224] In one implementation, the one or more common transmission configuration indication states are transmission configuration indication states of the same transmission reception point.

[0225] In one implementation, the one or more general transmission configuration indication states are transmission configuration indication states of multiple transmission reception points.

[0226] In one implementation, the sending unit 201 is further used to: send third indication information, where the third indication information is used to indicate that the first indication information is used to indicate a general transmission configuration indication state of one or more transmission receiving points.

[0227] In one implementation, the sending unit 201 is further used to: send fourth indication information, wherein the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink general transmission configuration indication state, an uplink general transmission configuration indication state, and a downlink general transmission configuration indication state.

[0228] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0229] Fig.10 3 is a block diagram of a device for beam indication according to an exemplary embodiment. For example, the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0230] Reference Fig.10 , the device 300 may include one or more of the following components: a processing component 302 , a memory 304 , a power component 306 , a multimedia component 308 , an audio component 310 , an input / output (I / O) interface 312 , a sensor component 314 , and a communication component 316 .

[0231] The processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0232] The memory 304 is configured to store various types of data to support operations on the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc. The memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0233] The power component 306 provides power to the various components of the device 300. The power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.

[0234] The multimedia component 308 includes a screen that provides an output interface between the device 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 includes a front camera and / or a rear camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0235] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC), and when the device 300 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 304 or sent via the communication component 316. In some embodiments, the audio component 310 also includes a speaker for outputting audio signals.

[0236] I / O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0237] The sensor assembly 314 includes one or more sensors for providing various aspects of the status assessment of the device 300. For example, the sensor assembly 314 can detect the open / closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, the sensor assembly 314 can also detect the position change of the device 300 or a component of the device 300, the presence or absence of user contact with the device 300, the orientation or acceleration / deceleration of the device 300, and the temperature change of the device 300. The sensor assembly 314 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 314 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 314 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0238] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices. The device 300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0239] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.

[0240] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, and the instructions can be executed by the processor 320 of the device 300 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0241] Fig.11 4 is a block diagram of a device for beam indication according to an exemplary embodiment. For example, the device 400 may be provided as a network device. Fig.11 , the apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432 for storing instructions, such as an application, that can be executed by the processing component 422. The application stored in the memory 432 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 422 is configured to execute the instructions to perform the above method.

[0242] The device 400 may also include a power supply component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input / output (I / O) interface 458. The device 400 may operate based on an operating system stored in the memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0243] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 432 including instructions, which can be executed by the processing component 422 of the device 400 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0244] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0245] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0246] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0247] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0248] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A beam indication method, characterized in that: Applied to a terminal, the beam indication method includes: Receive first indication information, the first indication information is used to indicate the transmission configuration indication TCI state of multiple transmission receiving points TRP, the TCI state of each TRP includes at least one of the uplink and downlink common TCI state, the uplink common TCI state and the downlink common TCI state, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate the uplink common TCI state or the uplink and downlink common TCI state, the second indication field is used to indicate the downlink common TCI state or the uplink and downlink common TCI state; the first indication field and the second indication field are represented by different bit values ​​of the same bit; there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink common TCI state, and there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink common TCI state.

2. The beam indication method according to claim 1, characterized in that: The first indication field and / or the second indication field is one or a combination of the following: The TCI indication field used for physical downlink shared channel dedicated beam indication in downlink control signaling; An indication field in downlink control signaling used to indicate a sounding reference signal resource indication; and A new indication field is added in the downlink control signaling.

3. The beam indication method according to claim 1 or 2, characterized in that: The downlink control signaling sent once is used to indicate the uplink and downlink common TCI state or the uplink common TCI state or the downlink common TCI state.

4. The beam indication method according to claim 1, characterized in that: The method further comprises: Receive second indication information, where the second indication information is used to indicate a channel and / or reference signal to which the general TCI state is applicable.

5. The beam indication method according to any one of claims 1 to 4, characterized in that: The beam indication method further includes: Receive fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink common TCI state, an uplink common TCI state, and a downlink common TCI state.

6. A beam indication method, characterized in that: Applied to a network device, the beam indication method includes: Receive first indication information, the first indication information is used to indicate the transmission configuration indication TCI state of multiple transmission receiving points TRP, the TCI state of each TRP includes at least one of the uplink and downlink common TCI state, the uplink common TCI state and the downlink common TCI state, the first indication information includes a first indication field and / or a second indication field, the first indication field is used to indicate the uplink common TCI state or the uplink and downlink common TCI state, the second indication field is used to indicate the downlink common TCI state or the uplink and downlink common TCI state; the first indication field and the second indication field are represented by different bit values ​​of the same bit; there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink common TCI state, and there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink common TCI state.

7. The beam indication method according to claim 6, characterized in that: The first indication field and / or the second indication field is one or a combination of the following: The TCI indication field used for physical downlink shared channel dedicated beam indication in downlink control signaling; An indication field in downlink control signaling used to indicate a sounding reference signal resource indication; and A new indication field is added in the downlink control signaling.

8. The beam indication method according to claim 6 or 7, characterized in that: The downlink control signaling sent once is used to indicate the uplink common TCI state or the downlink common TCI state or the uplink and downlink common TCI state.

9. The beam indication method according to claim 6, characterized in that: The method further comprises: Send second indication information, where the second indication information is used to indicate the channel and / or reference signal to which the general TCI state is applicable.

10. The beam indication method according to any one of claims 6 to 9, characterized in that: The beam indication method further includes: Send fourth indication information, where the fourth indication information is used to indicate that the first indication information is used to indicate at least one of an uplink and downlink common TCI state, an uplink common TCI state, and a downlink common TCI state.

11. A beam pointing device, characterized in that: Applied to a terminal, the beam indication device comprises: A receiving unit is configured to receive first indication information, wherein the first indication information is used to indicate the transmission configuration indication TCI state of multiple transmission receiving points TRP, and the TCI state of each TRP includes at least one of an uplink and downlink common TCI state, an uplink common TCI state and a downlink common TCI state. The first indication information includes a first indication field and / or a second indication field, wherein the first indication field is used to indicate the uplink common TCI state or the uplink and downlink common TCI state, and the second indication field is used to indicate the downlink common TCI state or the uplink and downlink common TCI state; the first indication field and the second indication field are represented by different bit values ​​of the same bit; there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink common TCI state, and there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink common TCI state.

12. A beam pointing device, characterized in that: Applied to network equipment, the beam indication device comprises: A sending unit is configured to send first indication information, wherein the first indication information is used to indicate the transmission configuration indication TCI state of multiple transmission receiving points TRP, and the TCI state of each TRP includes at least one of an uplink and downlink common TCI state, an uplink common TCI state and a downlink common TCI state. The first indication information includes a first indication field and / or a second indication field, wherein the first indication field is used to indicate the uplink common TCI state or the uplink and downlink common TCI state, and the second indication field is used to indicate the downlink common TCI state or the uplink and downlink common TCI state; the first indication field and the second indication field are represented by different bit values ​​of the same bit; there is a first mapping relationship between the bit codeword corresponding to the first bit value and the uplink common TCI state, and there is a second mapping relationship between the bit codeword corresponding to the second bit value and the downlink common TCI state.

13. A beam pointing device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to: execute the beam indication method described in any one of claims 1 to 5.

14. A beam pointing device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to: execute the beam indication method described in any one of claims 6 to 10.

15. A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of a mobile terminal, enables the mobile terminal to execute the beam indication method described in any one of claims 1 to 5.

16. A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of a network device, enables the network device to execute the beam indication method described in any one of claims 6 to 10.

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