Method and apparatus for signal transmission for beam indication in wireless communication system

Abstract

The present invention provides a method and an apparatus for a unified transmission configuration indicator framework, which ensures that the code point of the transmission configuration indicator field is associated with the transmission configuration indicator state for downlink / uplink beam indication according to the medium access control control element format, wherein the medium access control control element includes: at least one first eight-bit byte, which includes a first transmission configuration indicator state identity field associated with the first transmission configuration indicator state and a first field indicating whether it is used for downlink or uplink; a second eight-bit byte, which includes a second transmission configuration indicator state identity field associated with the second transmission configuration indicator state and a second field indicating whether it is used for downlink or uplink; and a third eight-bit byte, which includes a third field for determining whether the first transmission configuration indicator state and the second transmission configuration indicator state are associated with the same code point or different code points of the transmission configuration indicator field.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 208,435, filed on June 8, 2021, the entire text of which is incorporated herein by reference. Technical Field

[0003] The present disclosure relates generally to wireless communication networks, and more particularly, to a method and apparatus for signaling for beam indication in a wireless communication system. Background Art

[0004] As the demand for communicating large amounts of data to and from mobile communication devices grows rapidly, traditional mobile voice communication networks have evolved into networks that communicate with Internet Protocol (IP) data packets, which can provide IP-based voice, multimedia, multicast, and on-demand communication services to users of mobile communication devices.

[0005] An exemplary network structure is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The E-UTRAN system can provide high data throughput to enable the above-mentioned IP-borne voice and multimedia services. Currently, the 3GPP standards organization is discussing the next generation (e.g., 5G) new radio technology. Therefore, changes to the current body of 3GPP standards are currently being submitted and considered to evolve and complete the 3GPP standards. Summary of the invention

[0006] The present invention provides a method, system and device for ensuring a medium access control (MAC) control element (CE) format for associating code points of a TCI field and a TCI status for a separate downlink (DL) / uplink (UL) TCI beam indication for a unified Transmission Configuration Indicator (TCI) framework.

[0007] In various embodiments, utilizing this and other concepts, systems, and methods of the present invention, a method for a UE in a wireless communication system includes: receiving a MAC CE for associating at least one TCI state with at least one code point of a TCI field in a DCI, wherein the MAC CE includes at least: a first octet including a first TCI state ID field associated with a first TCI state and a first field indicating that the first TCI state is used for DL ​​or UL, a second octet including a second TCI state ID field associated with a second TCI state and a second field indicating that the second TCI state is used for DL ​​or UL, a third octet including a third field for the UE to determine whether the first TCI state and the second TCI state are associated with the same code point or different code points of the TCI field, wherein the method further includes: receiving the DCI having a specific code point of the TCI field; and determining one or more TCI states associated with the specific code point based on the MAC CE.

[0008] In various embodiments, utilizing this and other concepts, systems, and methods of the present invention, a method for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states and one or more code points of a TCI field, wherein the message includes a first number of bits for indicating first information corresponding to the one or more TCI states and a second number of bits for indicating second information corresponding to the one or more code points of the TCI field, and wherein the first information indicates at least one TCI state for DL ​​or UL, and the second information indicates at least the number of TCI states for a code point of the TCI field; and upon receiving a DCI having a code point of a TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A diagram showing a wireless communication system according to an embodiment of the present invention is shown.

[0010] Figure 2 is a block diagram of a transmitter system (also referred to as an access network) and a receiver system (also referred to as a user equipment or UE) according to an embodiment of the present invention.

[0011] Figure 3 is a functional block diagram of a communication system according to an embodiment of the present invention.

[0012] Figure 4 According to an embodiment of the present invention Figure 3 Functional block diagram of the program code.

[0013] Figure 5 TS 38.321 Rel-16: TCI state activation / deactivation for UE-specific PDSCH MAC CE Figure 6 .Reproduction of 1.3.14-1.

[0014] Figure 6 Yes TS 38.321 Rel-16: Enhanced TCI state activation / deactivation for UE-specific PDSCH MAC CE Figure 6 .Reappearance of 1.3.24-1.

[0015] Figure 7 R1-2105291, Multi-beam enhancement: Common TCI state pool for joint and individual DL / UL beam indication Figure 1 Reappearance of.

[0016] Figure 8 is an example of at least two octets (eg, the second top octet and the third top octet) included in the MAC CE according to an embodiment of the present invention.

[0017] Fig. 9 is based on Figure 8 An example of a MAC CE format of , where S0 indicates information of D+U according to an embodiment of the present invention, S1 indicates information of U, and S2 indicates information of D+U.

[0018] Fig.10 is based on Figure 8 An example of a MAC CE format, wherein S0 indicates information of D+U according to an embodiment of the present invention, S1 indicates information of U, S2 indicates information of D, S3 indicates information of D+U, and S4 indicates information of D.

[0019] Fig.11 is an example of at least one octet (eg, the second top octet) included in the MAC CE according to an embodiment of the present invention.

[0020] Fig.12 is based on Fig.11 An example of a MAC CE format of , where S0 indicates information of D according to an embodiment of the present invention, S1 indicates information of U, and S2 indicates information of U.

[0021] Fig.13 is an example of at least one octet (eg, the second top octet) included in the MAC CE according to an embodiment of the present invention.

[0022] Fig.14is an example of at least one octet included in a MAC CE according to an embodiment of the present invention, wherein the at least one octet includes eight 1-bit fields (eg, S0-S7).

[0023] Fig.15 is an example of S0 indicating information of DL, S1 indicating information of UL, and S2 indicating information of UL according to an embodiment of the present invention.

[0024] Fig.16 is an example of an mTRP mechanism according to an embodiment of the present invention and at least two octets (eg, S0 to S7) indicating which component of the TCI state is used.

[0025] Fig.17 It is an example of at least two octets (e.g., S0 to S7) included in a MAC CE according to an embodiment of the present invention, used to indicate information of a DL component, a UL component, or a DL+UL component of a TCI state, where the TCI state IDi,1 is associated with the (i+1)-th Tj, where the value 1 starts from T0.

[0026] Fig.18 According to an embodiment of the present invention, Fig.17 An example of a MAC CE format, where the MAC CE may include the last two octets (e.g., S0-S7).

[0027] Fig.19 is an example in which Oct N+1 to Oct M may provide a second bitmap (eg, P0 to P(MN-1)*8+7) for indicating information related to the TCI state of the UL according to an embodiment of the present invention.

[0028] Fig. 20 is an example of information in which Si may indicate sTRP / mTRP and DL / UL according to an embodiment of the present invention.

[0029] Fig.21 It is an example of information in which Si may indicate sTRP / mTRP and DL / UL according to an embodiment of the present invention, wherein the information indicated by Si, as a combination of DL and UL, applies or associates at least a DL component and a UL component of a TCI state.

[0030] Fig. 22 is an example in which Si may indicate information of DL and / or UL and Ci,1 will indicate information of 1TCI ​​state or 2TCI state according to an embodiment of the present invention.

[0031] Fig.23is an example of information in which Si may indicate DL and / or UL according to an embodiment of the present invention, and for the information indicated by Si, as a combination of DL and UL, at least a DL component and a UL component of one TCI state are applied or associated.

[0032] Fig.24 is an example of a second MAC CE containing a serving cell ID of an associated serving cell indicating an indicated TCI state according to an embodiment of the present invention.

[0033] Fig.25 is an example of a first MAC CE containing a serving cell ID of an associated serving cell indicating an indicated TCI state according to an embodiment of the present invention.

[0034] Fig.26 is an example according to an embodiment of the present invention in which the D / Ux field may correspond to the first part of the information, the Nx field may correspond to the second part of the information, and N0 may be 0 (for example, the number of TCI state IDs associated with code point 0 is 1 (TCI state ID0,1)).

[0035] Fig. 27 is an example showing the association between the TCI state ID and the TCI code point in the DCI for the sTRP mechanism according to an embodiment of the present invention.

[0036] Fig.28 is an example showing the association between the TCI state ID and the TCI code point in the DCI for the mTRP mechanism according to an embodiment of the present invention.

[0037] Fig.29 The present invention is a flowchart of a method in which a UE receives a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0038] Fig.30 is a flowchart of a method for a network to transmit a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0039] Fig.31 The present invention is a flowchart of a method in which a UE receives a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0040] Fig.32 is a flowchart of a method for a network to transmit a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0041] Fig.33The present invention is a flowchart of a method in which a UE receives a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0042] Fig.34 is a flowchart of a method for a network to transmit a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0043] Fig.35 The present invention is a flowchart of a method in which a UE receives a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0044] Fig.36 is a flowchart of a method for a network to transmit a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0045] Fig.37 is a flowchart of a method for a network to transmit a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention.

[0046] Fig.38 The present invention is a flowchart of a method in which a UE receives a MAC CE for associating at least one TCI state with at least one code point of a TCI field in a DCI according to an embodiment of the present invention.

[0047] Fig.39 The present invention is a flowchart of a method in which a UE receives a message for associating one or more TCI states with one or more code points of a TCI field according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The present invention described herein may be applied to or implemented in the exemplary wireless communication systems and devices described below. In addition, the present invention is primarily described in the context of the 3GPP architecture reference model. However, it should be understood that with the disclosed information, those skilled in the art can easily make adjustments for use and implement various aspects of the present invention in the 3GPP2 network architecture as well as other network architectures.

[0049] The exemplary wireless communication systems and devices described below employ wireless communication systems that support broadcast services. Wireless communication systems are widely deployed to provide various types of communications, such as voice, data, etc. These systems can be based on code division multiple access (CDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), 3GPP Long Term Evolution (LTE) wireless access, 3GPP Long Term Evolution Advanced (LTE-A) wireless access, 3GPP2 Ultra Mobile Broadband (UMB), WiMax, 3GPP New Radio (NR), or some other modulation technology.

[0050] Specifically, the exemplary wireless communication systems and devices described below may be designed to support one or more standards, such as standards provided by an alliance named "3rd Generation Partnership Project" referred to herein as 3GPP, including: [1] 3GPP TS 38.321 V16.4.0 (2021-03) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Medium Access Control (MAC) Protocol Specification (Version 16); [2] 3GPP TS 38.212 V16.5.0 (2021-03) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Multiplexing and Channel Coding (Version 16); [3] 3GPP TS 38.213 V16.5.0 (2021-03) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical Layer Procedures for Control (Version 16); [4] 3GPP TS 38.214 V16.5.0 (2021-03) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 16); [5] RP-193133 New WID: Further enhancements for MIMO for NR, Samsung; [6] 3GPP TS 38.331 V16.4.1 (2021-03) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Resource Control (RRC) protocol specification (Release 16); [7] Final report of 3GPP TSG RAN WG1#102-e v1.0.0, (Online meeting, August 17-28, 2020); [8] Final report of 3GPP TSG RAN WG1#103-e v1.0.0, (Online meeting, October 26-November 13, 2020); [9] 3GPP Draft Report of TSG RAN WG1#104-e v0.3.0, (online meeting, January 25 - February 5, 2021);

[10] Chair's Notes RAN1#104b - Electronic Final Draft (https: / / www.3gpp.org / ftp / tsg_ran / WG1_RL1 / TSGR1_104b-e / Inbox / Chair_notes);

[11] Chair's Notes RAN1#105-e v012 (https: / / www.3gpp.org / ftp / tsg_ran / WG1_RL1 / TSGR1_105-e / Inbox / Chair_notes / Chair's%20Notes%20RAN1%23105-e%20v012.zip);

[12] R1-2102675, Enhancements for Multi-Beam Operation, MediaTek;

[13] R1-2105291, Multi-Beam Enhancements, Samsung; and

[14] R1-2105353, Enhancements for Multi-Beam Operation, MediaTek. The standards and documents listed above are hereby expressly and completely incorporated herein by reference in their entirety. .

[0051] Figure 1 A multiple access wireless communication system according to an embodiment of the present invention is shown. An access network 100 (AN) includes multiple antenna groups, one of which includes antenna groups 104 and 106, another includes antenna groups 108 and 110, and another includes antenna groups 112 and 114. Figure 1 1, only two antennas are shown for each antenna group, but each antenna group may utilize more or fewer antennas. Access terminal (AT) 116 communicates with antennas 112 and 114, where antennas 112 and 114 transmit information to access terminal 116 via forward link 120 and receive information from AT 116 via reverse link 118. AT 122 communicates with antennas 106 and 108, where antennas 106 and 108 transmit information to AT 122 via forward link 126 and receive information from AT 122 via reverse link 124. In an FDD system, communication links 118, 120, 124, and 126 may use different frequencies for communication. For example, forward link 120 may use a different frequency than the frequency used by reverse link 118.

[0052] Each antenna group and / or the area in which the antenna group is designed to communicate is often referred to as a sector of the access network. In an embodiment, the antenna groups are each designed to communicate with access terminals in a sector of the area covered by the access network 100.

[0053] In communicating via forward links 120 and 126, the transmit antennas of access network 100 may utilize beamforming in order to improve the signal-to-noise ratio of the forward links for the different access terminals 116 and 122. Also, an access network that uses beamforming to transmit to access terminals that are randomly dispersed throughout the coverage area of ​​the access network will generally cause less interference to access terminals in neighboring cells than an access network that transmits to all of its access terminals via a single antenna.

[0054] AN may be a fixed station or base station for communicating with a terminal, and may also be referred to as an access point, Node B, base station, enhanced base station, eNodeB, or some other term. AT may also be referred to as user equipment (UE), a wireless communication device, a terminal, an access terminal, or some other term.

[0055] Figure 2 2 is a simplified block diagram of an embodiment of a transmitter system 210 (also referred to as an access network) and a receiver system 250 (also referred to as an access terminal (AT) or user equipment (UE)) in a MIMO system 200. At the transmitter system 210, traffic data for a number of data streams is provided from a data source 212 to a transmit (TX) data processor 214.

[0056] In one embodiment, each data stream is transmitted via a respective transmit antenna.TX data processor 214 formats, codes, and interleaves the traffic data for each data stream based on a particular coding scheme selected for that data stream to provide coded data.

[0057] The coded data for each data stream may be multiplexed with pilot data using OFDM techniques. The pilot data is typically a known data pattern that is processed in a known manner and may be used at the receiver system to estimate the channel response. The multiplexed pilot and coded data for each data stream is then modulated (e.g., symbol mapped) based on a particular modulation scheme (e.g., BPSK, QPSK, M-PSK, or M-QAM) selected for that data stream to provide modulation symbols. The data rate, coding, and modulation for each data stream may be determined by instructions executed by processor 230.

[0058] The modulation symbols for all data streams are then provided to a TX MIMO processor 220, which may further process the modulation symbols (e.g., for OFDM). TX MIMO processor 220 then provides NT modulation symbol streams to NT transmitters (TMTR) 222a through 222t. In certain embodiments, TX MIMO processor 220 applies beamforming weights to the symbols of the data streams and to the antenna from which the symbol is being transmitted.

[0059] Each transmitter 222 receives and processes a respective symbol stream to provide one or more analog signals, and further conditions (e.g., amplifies, filters, and upconverts) the analog signals to provide a modulated signal suitable for transmission over the MIMO channel. NT modulated signals from transmitters 222a through 222t are then transmitted from NT antennas 224a through 224t, respectively.

[0060] At receiver system 250, the transmitted modulated signals are received by NR antennas 252a through 252r and the received signal from each antenna 252 is provided to a respective receiver (RCVR) 254a through 254r. Each receiver 254 conditions (e.g., filters, amplifies, and downconverts) a respective received signal, digitizes the conditioned signal to provide samples, and further processes the samples to provide a corresponding "received" symbol stream.

[0061] The RX data processor 260 then receives and processes the NR received symbol streams from the NR receivers 254 based on a particular receiver processing technique to provide NT "detected" symbol streams. The RX data processor 260 then demodulates, deinterleaves, and decodes each detected symbol stream to recover the traffic data for the data stream. The processing by the RX data processor 260 is complementary to the processing performed by the TX MIMO processor 220 and the TX data processor 214 at the transmitter system 210.

[0062] Processor 270 periodically determines which pre-coding matrix to use (discussed below). Processor 270 formulates a reverse link message comprising a matrix index portion and a rank value portion.

[0063] The reverse link message may include various types of information related to the communication link and / or the received data stream. The reverse link message is then processed by the TX data processor 238, which also receives traffic data for a number of data streams from the data source 236, modulated by the modulator 280, conditioned by the transmitters 254a to 254r, and transmitted back to the transmitter system 210.

[0064] At the transmitter system 210, the modulated signal from the receiver system 250 is received by the antenna 224, conditioned by the receiver 222, demodulated by the demodulator 240, and processed by the RX data processor 242 to extract the reverse link message transmitted by the receiver system 250. The processor 230 then determines which precoding matrix to use to determine the beamforming weights and then processes the extracted message.

[0065] The memory 232 may be used to temporarily store some buffer / calculated data from 240 or 242 through the processor 230, store some buffer data from 212, or store some specific program codes. Also, the memory 272 may be used to temporarily store some buffer / calculated data from 260 through the processor 270, store some buffer data from 236, or store some specific program codes.

[0066] Steering Figure 3 , this figure shows an alternative simplified functional block diagram of a communication device according to one embodiment of the present invention. Figure 3As shown in FIG. , the communication device 300 in the wireless communication system can be used to implement Figure 1 UE (or AT) 116 and 122 in, and the wireless communication system is preferably an NR system. The communication device 300 may include an input device 302, an output device 304, a control circuit 306, a central processing unit (CPU) 308, a memory 310, a program code 312, and a transceiver 314. The control circuit 306 executes the program code 312 in the memory 310 through the CPU 308, thereby controlling the operation of the communication device 300. The communication device 300 can receive a signal input by a user through the input device 302 (for example, a keyboard or a keypad), and can output images and sounds through the output device 304 (for example, a monitor or a speaker). The transceiver 314 is used to receive and transmit wireless signals, pass the received signal to the control circuit 306, and wirelessly output the signal generated by the control circuit 306.

[0067] Figure 4 According to an embodiment of the present invention Figure 3 4. In this embodiment, program code 312 includes application layer 400, layer 3 portion 402, and layer 2 portion 404, and is coupled to layer 1 portion 406. Layer 3 portion 402 generally performs radio resource control. Layer 2 portion 404 generally performs link control. Layer 1 portion 406 generally performs physical connectivity.

[0068] For LTE, LTE-A or NR systems, the layer 2 portion 404 may include a radio link control (RLC) layer and a medium access control (MAC) layer. The layer 3 portion 402 may include a radio resource control (RRC) layer.

[0069] Any two or more of the following paragraphs, (sub)bullets, points, actions or claims described in each invention may be logically, reasonably and appropriately combined to form a specific method.

[0070] Any sentence, paragraph, (sub) bullet point, key point, action or claim described in each of the following inventions can be implemented independently and individually to form a specific method. The dependency in the following inventions (e.g., "based on", "more specifically", etc.) is only a possible embodiment that does not limit a specific method.

[0071] Some relevant texts in NR are quoted below according to TS 38.321 Rel-16 [1].

[0072] *************Quote [1]Start************************************

[0073] 5.18.4 UE-specific PDSCH TCI state activation / deactivation

[0074] The network may activate and deactivate the configured TCI state of the PDSCH of a serving cell or a group of serving cells configured in simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2 by sending the TCI state activation and deactivation for UE-specific PDSCH MAC CE described in Section 6.1.3.14. The network may activate and deactivate the configured TCI state of the code point of the DCI transmission configuration indication field as specified in TS 38.212 [9] for the PDSCH of the serving cell by sending the enhanced TCI state activation / deactivation for UE-specific PDSCH MAC CE described in Section 6.1.3.24. The configured TCI state of the PDSCH is initially deactivated after configuration and after handover.

[0075] 6.1.3.14 TCI state activation / deactivation for UE-specific PDSCH MAC CE

[0076] The TCI state activation / deactivation of the UE-specific PDSCH MAC CE is identified by a MAC subheader with LCID as specified in Table 6.2.1-1. It has a variable size consisting of the following fields:

[0077] - Serving Cell ID: This field indicates the identity of the serving cell to which the MAC CE applies. The length of the field is 5 bits. If the indicated serving cell is configured as part of simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2 as specified in TS 38.331 [5], then this MAC CE applies to all serving cells configured in a set of simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2 respectively;

[0078] - BWP ID: This field indicates the DL BWP to which the MAC CE applies as the code point of the DCI bandwidth part indicator field as specified in TS 38.212 [9]. The length of the BWP ID field is 2 bits. If this MAC CE applies to a group of serving cells, this field is ignored;

[0079] -T i : If there is a TCI state with TCI-StateId i as specified in TS 38.331 [5], this field indicates the activation / deactivation status of the TCI state with TCI-StateId i, otherwise the MAC entity shall ignore TCI-StateId i. i Field. i This field is set to 1 to indicate that the TCI state with TCI-StateId i is to be activated and maps to the codepoint of the DCI TransmissionConfiguration Indication field as specified in TS 38.214 [7]. i The TCI-StateId field is set to 0 to indicate that the TCI state with TCI-StateId i is to be deactivated and is not mapped to a codepoint in the DCI TransmissionConfiguration Indication field. The codepoint to which the TCI state is mapped is determined by its TCI-StateId i in the TCI TransmissionConfiguration Indication field. i The ordinal position among all TCI states where the field is set to 1 is determined, i.e., T i The first TCI state with the field set to 1 will be mapped to code point value 0, T i The second TCI state with the field set to 1 will map to code point value 1, and so on. The maximum number of activated TCI states is 8;

[0080] - CORESET Pool ID: This field indicates that the mapping between the activated TCI state and the codepoint of the DCI TransmissionConfiguration Indication set by field Ti is specific to the ControlResourceSetId configured with the CORESET Pool ID as specified in TS 38.331 [5]. This field set to 1 indicates that this MAC CE shall apply to DL transmissions scheduled by a CORESET with a CORESET Pool ID equal to 1, otherwise, this MAC CE shall apply to DL transmissions scheduled by a CORESET Pool ID equal to 0. If coresetPoolIndex is not configured for any CORESET, then the MAC entity shall ignore the CORESET Pool ID field in this MAC CE when a MAC CE is received. If the serving cell in the MAC CE is configured in a cell list containing more than one serving cell, then the CORSET Pool ID field shall be ignored when a MAC CE is received.

[0081] Figure 5 TS 38.321 Rel-16: TCI state activation / deactivation for UE-specific PDSCH MAC CE Figure 6 .Reproduction of 1.3.14-1.

[0082] 6.1.3.24 Enhanced TCI state activation / deactivation for UE-specific PDSCH MAC CE

[0083] Enhanced TCI state activation / deactivation of the UE-specific PDSCH MAC CE is identified by a MAC PDU with an eLCID as specified in Table 6.2.1-1b. It has a variable size consisting of the following fields:

[0084] - Serving Cell ID: This field indicates the identity of the serving cell to which the MAC CE applies. The length of the field is 5 bits. If the indicated serving cell is configured as part of simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2 as specified in TS 38.331 [5], then this MAC CE applies to all serving cells configured in a set of simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2 respectively;

[0085] -BWP ID: This field indicates the DL BWP to which the MAC CE applies as the code point of the DCI bandwidth part indicator field as specified in TS 38.212 [9]. The length of the BWP ID field is 2 bits;

[0086] -C i : This field indicates whether there is a TCI status ID i,2 If this field is set to "1", then there is a TCI status ID i,2 If this field is set to "0", there is no TCI status ID. i,2 octet;

[0087] -TCI Status ID i,j : This field indicates the TCI state identified by TCI-StateId as specified in TS 38.331 [5], where i is the index of the codepoint of the DCI Transmission configuration indication field as specified in TS 38.212 [9] and TCI State ID i,jIndicates the jth TCI state indicated by the i-th code point in the DCI Transmission Configuration Indication field. The TCI code points to which the TCI state is mapped are represented by multiple groups of TCI state IDs. i,j Its ordinal position among all TCI code points in the field is determined, i.e. it has a TCI status ID 0,1 and TCI Status ID 0,2 The first TCI code point will be mapped to code point value 0, with TCI state ID 1,1 and TCI Status ID 1,2 The second TCI code point will be mapped to code point value 1, and so on. TCI State ID i,2 C-based i The indication of the field is optional. The maximum number of activated TCI code points is 8, and the maximum number of TCI states mapped to a TCI code point is 2.

[0088] Figure 6 Yes TS 38.321 Rel-16: Enhanced TCI state activation / deactivation for UE-specific PDSCH MAC CE Figure 6 .Reappearance of 1.3.24-1.

[0089] ******************End of Quote [1]************************************

[0090] Some relevant texts in NR are quoted below according to TS 38.212 Rel-16 [2].

[0091] ******************Quote [2] starts************************************

[0092] 7.3.1 DCI format

[0093] The DCI formats defined in Table 7.3.1-1 are supported.

[0094] Table 7.3.1-1: DCI format

[0095]

[0096]

[0097] 7.3.1.2 DCI format for PDSCH scheduling

[0098] 7.3.1.2.2 Format 1_1

[0099] DCI format 1_1 is used to schedule PDSCH in one cell.

[0100] The following information is transmitted by means of DCI format 1_1 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI:

[0101] -DCI format identifier - 1 bit

[0102] - The value of this bit field is always set to 1, indicating the DL DCI format

[0103] - Carrier indicator - 0 or 3 bits, as defined in section 10.1 of [5, TS 38.213].

[0104] - Bandwidth Part Indicator - Number n of DL BWPs as configured by higher layers BWP,RRC Determined as 0, 1, or 2 bits, excluding the initial DL bandwidth part. The bit width of this field is determined as bits, of which

[0105] …

[0106] - Frequency domain resource allocation - the number of bits determined by is the size of the effective DL bandwidth portion:

[0107] …

[0108] - Time Domain Resource Allocation - 0, 1, 2, 3, or 4 bits, as defined in Section 5.1.2.1 of [6, TS 38.214]. The bit width used for this field is determined as bits, where I is the number of entries in the higher layer parameter pdsch-TimeDomainAllocationList if a higher layer parameter is configured; otherwise I is the number of entries in the preset table.

[0109] …

[0110] -HARQ process number - 4 bits

[0111] …

[0112] - PUCCH resource indicator - 3 bits, as defined in section 9.2.3 of [5, TS 38.213]

[0113] -PDSCH to HARQ_feedback timing indicator - 0, 1, 2 or 3 bits, as defined in section 9.2.3 of [5, TS 38.213]. The bit width used for this field is determined as bits, where I is the number of entries of the higher layer parameter dl-DataToUL-ACK.

[0114] …

[0115] - Transport Configuration Indication - 0 bits if the higher layer parameter tci-PresentInDCI is not enabled; otherwise 3 bits as defined in section 5.1.5 of [6, TS38.214].

[0116] …

[0117] ******************End of Quote [2]************************************

[0118] Some relevant texts in NR are quoted below according to TS 38.213 Rel-16 [3].

[0119] ***********Quote [3] starts************************************

[0120] 10.2 PDCCH Verification for DL ​​SPS and UL Grant Type 2

[0121] The UE verifies the DL SPS allocation PDCCH or the configured UL grant type 2 PDCCH for scheduling activation or scheduling release in the following cases:

[0122] - The CRC of the corresponding DCI format is scrambled by the CS-RNTI provided by the cs-RNTI, and

[0123] - the New Data Indicator field in the DCI format for the enabled transport block is set to '0', and

[0124] - the DFI Flag field in the DCI format (if present) is set to '0', and

[0125] - If the verification is activated for scheduling and if the PDSN to HARQ_feedback timing indicator field in DCI format is present, the HARQ_feedback timing indicator field does not provide an unavailable value from dl-DataToUL-ACK-r16.

[0126] If a single configuration for UL grant type 2 PUSCH or for SPS PDSCH is provided to the UE, then validation of the DCI format is achieved if all fields of the DCI format are set according to Table 10.2-1 or Table 10.2-2.

[0127] If all fields of the DCI format are set according to Table 10.2-4, then validation of the DCI format is achieved.

[0128] If the verification is achieved, the UE regards the information in the DCI format as a valid activation or a valid release of the DL SPS or configured UL grant type 2. If the verification is not achieved, the UE discards all the information in the DCI format.

[0129] Table 10.2-1: Special fields for single DL SPS or single UL grant type 2 scheduling activation PDCCH verification when a single SPS PDSCH or UL grant type 2 configuration is provided to the UE in the active DL / UL BWP of the scheduled cell

[0130]

[0131] Table 10.2-2: Special fields for single DL SPS or single UL grant type 2 scheduling release PDCCH validation when single SPS PDSCH or UL grant type 2 configuration is provided to the UE in the active DL / UL BWP of the scheduled cell

[0132]

[0133]

[0134] In response to an SPS PDSCH release N symbols after the last symbol of the PDCCH providing the SPS PDSCH release, the UE is expected to provide HARQ-ACK information. If processingType2Enabled of PDSCH-ServingCellConfig is set to enabled for a serving cell with a PDCCH providing an SPS PDSCH release, then for μ=0, N=5, for μ=1, N=5.5 and for μ=2, N=11, otherwise, for μ=0, N=10, for μ=1, N=12, for μ=2, N=22 and for μ=3, N=25, where μ corresponds to the minimum SCS configuration between the SCS configuration of the PDCCH providing the SPS PDSCH release and the SCS configuration of the PUCCH carrying the HARQ-ACK information in response to the SPS PDSCH release.

[0135] *******************End of Quote [3]************************************

[0136] Some relevant texts in NR are quoted below according to TS 38.214 Rel-16 [4].

[0137] ******************Quote [4]Start************************************

[0138] 5.1.5 Quasi-co-location of antenna ports

[0139] The UE may be configured with a list of up to M TCI-State configurations within the higher layer parameter PDSCH-Config to decode the PDSCH based on a detected PDCCH with DCI intended for the UE and a given serving cell, where M depends on the UE capability maxNumberConfiguredTCIstatesPerCC. Each TCI-State contains parameters for configuring a quasi-co-location relationship between one or two downlink reference signals and the DM-RS ports of the PDSCH, the DM-RS ports of the PDCCH, or the CSI-RS ports of the CSI-RS resources. The quasi-co-location relationship is configured by the higher layer parameter qcl-Type1 for the first DL RS and the higher layer parameter qcl-Type2 for the second DL RS (if configured). In the case of two DL RSs, the QCL type will be different, regardless of whether the reference is to the same DL RS or different DL RSs. The quasi-co-location type corresponding to each DL RS is given by the higher layer parameter qcl-Type in QCL-Info and can take one of the following values:

[0140] - 'Type A': {Doppler shift, Doppler spread, average delay, delay spread}

[0141] - 'Type B': {Doppler shift, Doppler spread}

[0142] - 'Type C': {Doppler shift, average delay}

[0143] - 'Type D': {Spatial Rx Parameters}

[0144] The UE receives an activation command as described in section 6.1.3.14 of [10, TS 38.321] to map up to 8 TCI states to code points of the DCI field 'TransmissionConfigurationIndication' in one CC / DL BWP or in a group of CC / DL BWPs, respectively. When a set of TCI state IDs is activated for a group of CC / DL BWPs, where the list of applicable CCs is determined by the CCs indicated in the activation command, the same set of TCI state IDs applies to all DL BWPs in the indicated CCs.

[0145] When the UE supports two TCI states in the code point of the DCI field 'Transmission Configuration Indication', the UE may receive an activation command as described in Section 6.1.3.24 of [10, TS 38.321] to map up to 8 combinations of one or two TCI states to the code point of the DCI field 'Transmission Configuration Indication'. The UE is not expected to receive more than 8 TCI states in the activation command.

[0146] When the DCI field 'Transmission Configuration Indication' is present in DCI format 1_2 and when the number S of code points in the DCI field 'Transmission Configuration Indication' of DCI format 1_2 is less than the number of TCI code points activated by the activation command, as described in sections 6.1.3.14 and 6.1.3.24 of [10, TS38.321], only the first S activated code points are applied to DCI format 1_2.

[0147] When the UE is to transmit a PUCCH with HARQ-ACK information in slot n corresponding to the PDSCH carrying the activation command, it shall The indicated mapping between the TCI states and the code points of the DCI field 'TransmissionConfiguration Indication' is applied starting from the first time slot thereafter, where μ is the SCS configuration for PUCCH. If tci-PresentInDCI is set to 'Enabled' or tci-PresentDCI-1-2 is configured as CORESET for scheduling PDSCH, and the time offset between the reception of the DL DCI and the corresponding PDSCH is equal to or greater than timeDurationForQCL (if applicable), then after the UE receives the initial higher layer configuration of the TCI states and before the reception of the activation command, the UE may assume that the DM-RS ports of the PDSCH of the serving cell are quasi-co-located with the SS / PBCH blocks determined in the initial access procedure with respect to the qcl-Type set to 'Type A' and, where applicable, also with respect to the qcl-Type set to 'Type D'.

[0148] ******************End of Quote [4]************************************

[0149] Some content related to Rel-17 FeMIMO work item is cited below [5].

[0150] ****************Quote [5] starts************************************

[0151] 3 Adjustment

[0152] Rel-15 NR includes multiple MIMO features that facilitate the use of a large number of antenna elements at the base station in frequency bands below and above 6 GHz. Rel-16 NR enhances Rel-15 by introducing: enhanced type II codebook with DFT-based compression, support for multi-TRP transmission specifically for eMBB and PDSCH, enhancements for multi-beam operation including reduction of latency and / or overhead for various reconfigurations (QCL-related measurements), SCell beam failure recovery (BFR), and L1-SINR. In addition, low PAPR reference signals and features are introduced to enable full-power transmission in the uplink.

[0153] As the commercialization of NR progresses, various aspects that require further enhancement may be identified from real deployment scenarios. Such aspects include the following. First, while Rel-16 is able to provide some reduction in overhead and / or latency, high-speed vehicle scenarios under FR2 (e.g., UEs traveling at high speed on highways) require more reductions in latency and overhead - not only for intra-cell, but also for L1 / L2 center inter-cell mobility. This also includes reducing the occurrence of beam failure events. Second, while enhancements for implementing panel-specific UL beam selection were studied in Rel-16, there was not enough time to complete the work. This provides some possibility of increasing UL coverage, including, for example, mitigating UL coverage loss due to meeting maximum allowable exposure (MPE) adjustments. It should be noted that MPE issues may occur on all transmit beams from a panel, and therefore, solutions for MPE mitigation may be implemented only on a panel basis to meet regulatory requirements for the scenarios of concern.

[0154] Third, channels other than PDSCH can benefit from multi-TRP transmission (and multi-panel reception), which also includes multi-TRP for inter-cell operation. This includes some new use cases for multi-TRP, such as UL dense deployment within a macro cell and / or heterogeneous network type deployment scenarios. Fourth, due to the use of SRS for various scenarios, SRS can and should be further enhanced for at least capacity and coverage. Fifth, while Rel-16 supports enhanced Type II CSI, some room for further enhancement can be sensed. This includes CSI designed for multi-TRP / panel for NC-JT use cases and the utilization of partial reciprocity on channel statistics, such as angle and delay mainly for FR1 FDD deployments.

[0155] 4. Goals

[0156] 4.1 Objectives of SI or core WI or test WI

[0157] The work item aims to specify further enhancements to NR MIMO identification. The detailed objectives are as follows:

[0158] - Extended specification support for [RAN1]

[0159] 1. Enhancements to multi-beam operation, primarily for FR2, but also applicable to FR1:

[0160] a. Identify and specify features to facilitate more efficient (lower latency and overhead) DL / UL beam management to support higher intra-cell and L1 / L2 center-cell mobility and / or a large number of configured TCI states:

[0161] i. Common beams for data and control transmission / reception for DL ​​and UL, especially for intra-band CA

[0162] ii. Unified TCI framework for DL ​​and UL beam indication

[0163] iii. Enhancements to the signaling mechanisms for the above features to improve latency and efficiency, and greater use of dynamic control signaling (as opposed to RRC)

[0164] ******************End of Quote [5]************************************

[0165] *****************Quote [6] starts************************************

[0166] -ControlResourceSet

[0167] The IE ControlResourceSet is used to configure the time / frequency control resource set (CORESET) in which to search for downlink control information (see TS 38.213

[13] section 10.1).

[0168] ControlResourceSet Information Element

[0169]

[0170]

[0171]

[0172] …

[0173] -SPS-Config

[0174] IE SPS-Config is used to configure downlink semi-static transmission. Multiple downlink SPS configurations can be configured in one BWP of the serving cell.

[0175] SPS-Config Information Element

[0176]

[0177]

[0178]

[0179] …

[0180] -TCI-State

[0181] IE TCI-State associates one or two DL reference signals with the corresponding quasi-colocation (QCL) type.

[0182] TCI-State Information Element

[0183]

[0184]

[0185]

[0186] ****************End of Quote [6]************************************

[0187] ****************Quote [7] begins************************************

[0188] agreement

[0189] ●[Question 1] For Rel.17NR FeMIMO, on a unified TCI framework

[0190] a) Support joint TCI for DL ​​and UL based on and similar to Rel.15 / 16 DL TCI framework

[0191] ■ The term "TCI" includes at least a TCI state, which contains at least one source RS to provide a reference (UE assumption) for determining the QCL and / or spatial filter.

[0192] ■ The source reference signals in the M TCIs provide common QCL information for at least UE-specific reception on PDSCH and all or a subset of the CORESETs in the CC

[0193] ●Working assumption: choose between M=1 and M>=1

[0194] ■ the source reference signals in the N TCIs provide a reference for determining a common UL TX spatial filter for at least all or a subset of dedicated PUCCH resources in a CC, PUSCH based on a dynamic grant / configuration grant,

[0195] ● Optionally, this UL TX spatial filter can also be applied to all SRS resources in the resource set configured for antenna switching / codebook-based / non-codebook-based UL transmission

[0196] ●Working assumption: Choose between N=1 and N>=1

[0197] b) In RAN1#103-e, for down selection, investigate the following alternatives to accommodate the case of separate beam indication for UL and DL

[0198] ■Alternative 1. Utilize joint TCI to include reference to both DL and UL beams

[0199] ■ Alternative 2. Utilize two separate TCI states, one for DL ​​and one for UL. The TCI states for DL ​​are the same as those agreed upon in 1a. The TCI states for UL may be newly introduced.

[0200] ● Alternative 2-1: Get UL TCI status from the same TCI status pool as DL TCI status

[0201] • Alternative 2-2: Get UL TCI status from another TCI status pool compared to DL TCI status

[0202] ■ Note: The resulting beam indication refers directly to the associated source RS

[0203] ******************End of Quote [7]************************************

[0204] ******************Quote [8]Start*************************************

[0205] agreement

[0206] Support joint or separate DL / UL beam indication in Rel.17 unified TCI framework on beam indication signaling media:

[0207] ● Support for L1 based beam indication using at least UE specific (unicast) DCI to indicate joint or separate DL / UL beam indication from active TCI state

[0208] ○ Existing DCI formats 1_1 and 1_2 are reused for beam indication

[0209] ○Support mechanisms for UE to confirm successful decoding of beam indications

[0210] ■ ACK / NAK of PDSCH scheduled by DCI indicated by the carrier bundle can be used as ACK also for DCI

[0211] ● Support activation of one or more TCI states via MAC CE similar to Rel.15 / 16:

[0212] ○ For at least a single activated TCI state, apply the activated TCI state

[0213] ○Determine the contents of the MAC CE based on the results of question 1

[0214] agreement

[0215] On the Rel-17 unified TCI framework to accommodate the case of separate beam indication for UL and DL:

[0216] • Utilize two separate TCI states, one TCI state for DL ​​and one TCI state for UL.

[0217] ○ Note: For FR1, if UL TCI is supported for FR1, the UE does not expect UL TCI to provide a reference for determining the common UL TX spatial filter

[0218] ●For single DL TCI:

[0219] ○ The source reference signals in the M TCIs provide QCL information for at least UE-specific reception on PDSCH and all or a subset of the CORESETs in the CC

[0220] ●For a single UL TCI:

[0221] o The source reference signals in the N TCIs provide a reference for determining a common UL TX spatial filter for at least all or a subset of the dedicated PUCCH resources in a CC based on a dynamic grant / configuration grant

[0222] ○ Optionally, this UL TX spatial filter can also be applied to all SRS resources in the resource set configured for antenna switching / codebook-based / non-codebook-based UL transmission

[0223] **************End of Quote [8]************************************

[0224] *************Quote [9] begins************************************

[0225] in conclusion

[0226] On the Rel. 17 unified TCI framework based on the agreement in RAN1# 102-e and 103-e, the following terms are defined as follows (at least for the purpose of discussion and reaching agreement).

[0227] For M = 1:

[0228] DL TCI: The source reference signal in the DL TCI (if qcl_Type2 is configured in addition to qcl_Type1, similar to Rel.15, two source reference signals) provides QCL information for at least UE-specific reception on PDSCH and all CORESETs in the CC

[0229] For N = 1:

[0230] UL TCI: The source reference signal in the UL TCI provides a reference for determining the UL TX spatial filter for at least PUSCH based on dynamic grant / configuration grant and all dedicated PUCCH resources in the CC

[0231] For M=N=1:

[0232] • Joint DL / UL TCI: TCI refers to at least one common source reference RS used to determine both DL QCL information and UL TX spatial filter.

[0233] • Separate DL / UL TCI: DL TCI and UL TCI are different (hence, separate).

[0234] For M > 1:

[0235] ● DL TCI: Each of the M source reference signals (2M source reference signals if qcl_Type2 is configured in addition to qcl_Type1) in the M DL TCIs provides QCL information for at least one of the M beam-pair links for UE-specific reception on PDSCH and / or a subset of CORESETs in a CC

[0236] For N > 1:

[0237] ●UL TCI: Each of the N source reference signals in the N UL TCIs provides a reference for determining a UL TX spatial filter, which is used for at least one of the N beam pair links associated with the PUSCH based on dynamic grant / configuration grant and / or a subset of dedicated PUCCH resources in the CC.

[0238] For M>1 and / or N>1:

[0239] • Joint DL / UL TCI: TCI refers to at least one common source reference RS used to determine both DL QCL information and UL TX spatial filter. In this case, M=N.

[0240] • Separate DL / UL TCI: The M DL TCIs and the N UL TCIs are different (hence, separate).

[0241] agreement

[0242] On Rel.17 DCI based beam indication, in RAN1#104bis-e, in addition to the agreed DCI format 1_1 / 1_2 (in RAN1#103-e) with DL allocation, at least one of the following alternatives regarding DCI format supporting beam indication should be selected downward:

[0243] ●Alternative 0: No support for additional DCI formats

[0244] ●Alternative 1: DCI formats 1_1 and 1_2 without DL allocation are applicable to joint TCI and separate DL / UL TCI

[0245] ○Support DCI confirmation mechanism, such as SPS PDSCH release, SRS triggering, and DCI indicating SCell sleep

[0246] ○ FFS: How to identify DCI format 1_1 / 1_2 that is only used for beam indication (not used to schedule PDSCH reception, not indicating SPS PDSCH release, or not indicating SCell sleep), considering the impact on PDCCH coverage and scheduling mechanism

[0247] ○ FFS: Whether the UE can / should assume that the application time configured by the gNB is after the ACK transmission

[0248] ●Alternative 2: Dedicated DCI formats other than 1_1 / 1_2 without DL allocation are applicable to joint TCI and separate DL / UL TCI

[0249] ○Support DCI confirmation mechanism, such as SPS PDSCH release, SRS triggering, and DCI indicating SCell sleep

[0250] ○ FFS: If the format is based on the existing DCI format, how to identify the DCI format used only for beam indication

[0251] ○ FFS: Whether the UE can / should assume that the application time configured by the gNB is after the ACK transmission

[0252] ●Alternative 3: UL-related DCI format 0_1 / 0_2 with UL grant for UL-only TCI with separate DL / UL TCI

[0253] ***************End of Quote [9]************************************

[0254] ******************Quote

[10] Start************************************

[0255] agreement

[0256] For beam indication with Rel-17 unified TCI, DCI formats 1_1 / 1_2 are supported without DL allocation:

[0257] • Using an ACK / NACK mechanism similar to that used for SPS PDSCH release with both Type-1 and Type-2 HARQ-ACK codebooks:

[0258] ○After successfully receiving the beam indication DCI, the UE reports ACK

[0259] ■ Note that NACK may be reported after no beam indication DCI is received.

[0260] ■ For type 1 HARQ-ACK codebook, the location of the ACK information in the HARQ-ACK codebook is determined based on the virtual PDSCH indicated by the TDRA field in the beam indication DCI and based on the time domain allocation list configured for PDSCH

[0261] ■ For Type 2 HARQ-ACK codebook, the position of the ACK information in the HARQ-ACK codebook is determined according to the same rules used for SPS release

[0262] o After the end of PDCCH reception, report ACK in k slots of PUCCH, where k is indicated by the PDSCH to HARQ_feedback timing indicator field of the DCI format, or if the PDSCH to HARQ_feedback timing indicator field is not present in the DCI, then provide dl-DataToUL-ACK or dl-DataToUL-ACK-ForDCI-Format1-2-r16

[0263] ●When used for beam indication:

[0264] ○CS-RNTI is used to scramble the CRC of DCI

[0265] ○ Set the values ​​of the following DCI fields as follows:

[0266] ■RV=All '1'

[0267] ■MCS=All '1'

[0268] NDI = 0

[0269] ■ Set to all '0' for FDRA type 0, or all '1' for FDRA type 1, or all '0' for dynamicSwitch (same as in Table 10.2-4 of TS38.213)

[0270] ● Use existing TCI field (always present) to signal the following: 1) Joint DL / UL TCI state, 2) DL-only TCI state (for separate DL / UL TCI), 3) UL-only TCI state (for separate DL / UL TCI)

[0271] o FFS: whether both DL TCI status and UL TCI status can be signaled in one instance of beam indication DCI

[0272] ○ FFS: Relationship with joint to separate TCI (DL and / or UL) switching, including M / N>1 (if supported)

[0273] ● In addition, the following DCI fields are used as fields in Rel-16:

[0274] ○DCI format identifier

[0275] ○Carrier indicator

[0276] ○Bandwidth section indicator

[0277] ○TDRA

[0278] ○ Downlink allocation index (if configured)

[0279] ○ TPC command for scheduled PUCCH

[0280] ○PUCCH resource indicator

[0281] ○PDSCH to HARQ_feedback timing indicator (if present)

[0282] ● The remaining unused DCI fields and code points are retained in R17

[0283] ●Support UE to report whether TCI update is supported through DCI format 1_1 / 1_2.

[0284] ○ For UEs supporting TCI update by DCI format 1_1 / 1_2, it must support TCI update by using DCI 1_1 / 1_2 with DL allocation, and supporting the above features for TCI update by DCI format 1_1 / 1_2 without DL allocation is optional for the UE

[0285] *****************End of quote

[10] ************************************

[0286] ******************Quote

[11] Start************************************

[0287] agreement

[0288] For M=N=1, on Rel-17 unified TCI for separate DL / UL TCI, one example of beam indication using DCI format 1_1 / 1_2 (with and without DL allocation) may be used as follows:

[0289] ● One TCI field code point represents a pair of DL TCI state and UL TCI state. If the DCI indicates such a TCI field code point, the UE applies the corresponding DL TCI state and UL TCI state.

[0290] ● A TCI field code point indicates only the DL TCI state. If the DCI indicates such a TCI field code point, the UE applies the corresponding DL TCI state and maintains the current UL TCI state.

[0291] ● A TCI field code point indicates only the UL TCI state. If the DCI indicates such a TCI field code point, the UE applies the corresponding UL TCI state and maintains the current DL TCI state.

[0292] ******************End of quote

[11] ************************************

[0293] ****************Quote

[12] Start************************************

[0294] Support for additional DCI formats for TCI updates

[0295] In our view, supporting only DCI format 1_1 / 1_2 with DL allocation for TCI update is not sufficient and not flexible enough due to the dependency of DL traffic. For example, even if CSI acquisition or SRS transmission is not DL or UL traffic, these CSI acquisition or SRS transmission may still require TCI update. When there is UL-only or large amount of UL traffic, TCI update for UL transmission is also needed. In order to support wider and flexible use cases, we see the need for support of additional DCI formats for TCI update.

[0296] Regarding alternative 1: Supporting DCI format 1_1 / 1_2 without DL allocation for beam indication, which may benefit NW scheduling flexibility due to the dependency of DL and UL traffic. In addition, unused fields in DCI format 1_1 / 1_2 may be re-proposed for potential use in a unified TCI framework. In Rel-15 / 16, DCI format 1_1 / 1_2 without DL allocation may be used to indicate SPS PDSCH activation / release or SCell dormancy. After successfully decoding DCI format 1_1 / 1_2, the UE will send ACK feedback for it as part of the HARQ-ACK codebook. If DCI format 1_1 / 1_2 without DL allocation is supported for beam indication, then the following is our view with respect to the issues identified in the agreement:

[0297] Identify DCI format 1_1 / 1_2 used only for beam indication: First, we prefer to reuse CS-RNTI to scramble beam indication DCI with / without DL allocation, which is the simplest way to distinguish DCI for SCell sleep indication with / without DL allocation from normal DCI with DL allocation. Second, special values ​​for some fields can be applied to beam indication DCI with / without DL allocation to distinguish DCI scrambled by CS-RNTI for other purposes, including:

[0298] ● DCI format 1_1 / 1_2 for retransmission of DL SPS

[0299] ● DCI format 1_2 for DL ​​SPS activation with / without DL allocation

[0300] ● DCI format 1_1 / 1_2 for DL ​​SPS release with / without DL allocation

[0301] In summary, we propose the following values / fields applied to beam indication DCI with / without DL allocation:

[0302] • FDRA with the same value as in Table 10.2-4 of TS38.213 is used to distinguish DCI format 1_1 / 1_2 for DL ​​SPS and retransmission of DCI format 1_2 for DL ​​SPS activation with / without DL allocation

[0303] ● NDI with '0' is used to distinguish DCI format 1_1 / 1_2 for retransmission of DL SPS

[0304] ● MCS with all '1's (for retransmission only) is used to distinguish DCI formats 1_2 for DL ​​SPS activation with / without DL allocation

[0305] ● RV with all '1' is used to distinguish DCI format 1_1 / 1_2 for DL ​​SPS release with / without DL allocation

[0306] Table 2. DCI format 1_1 / 1_2 with CRC scrambled by CS-RNTI for different purposes

[0307]

[0308]

[0309] ********************End of quote

[12] ********************************

[0310] ******************Quote

[13] Start********************************

[0311] Joint / individual DL-UL TCI status indication

[0312] In RAN1#104-e[3], it is discussed how to indicate to the UE whether the TCI state ID being signaled is for a joint TCI state or a separate TCI state. There are three ways to indicate the type of TCI state ID:

[0313] - Include TCI status type in DCI indicating joint or separate TCI status

[0314] - TCI state type is dynamically signaled through MAC CE signaling.

[0315] -Configuring the TCI state type through RRC signaling If two TCI state types are configured through RRC signaling, additional dynamic signaling is required to signal the type of the indicated TCI state.

[0316] In RAN1#104b-e, no agreement was reached on further downward selection. However, an agreement was reached on the use of DL-related DCI (DCI format 1_1 and DCI format 1_2) without DL allocation for beam indication. In the agreement, it was decided that the DCI format contains a single TCI field for beam indication (already present in Rel-16) and no additional field for beam indication is utilized, i.e. a single TCI field (up to 3 bits) is used for beam indication in case of joint DL / UL TCI state or separate DL / UL TCI state.

[0317] We support dynamic indication of TCI state type. However, there is no additional field in the DCI format that can be used to indicate joint or individual TCI states (according to the agreement of RAN1#104b-e). Therefore, we can consider two ways to dynamically indicate the type of TCI state:

[0318] 1. Split the activated TCI state code points between joint TCI state and individual TCI state. This reduces the number of available code points for each type of TCI state by half.

[0319] 2. Use MAC CE signaling to indicate the TCI state type.

[0320] We slightly prefer MAC CE signaling to indicate the TCI state type because the change rate between the joint TCI state indication and the individual TCI state indication is relatively slow, making MAC CE signaling more efficient compared to DCI indication.

[0321] Proposal 4: Based on the unified TCI framework of Rel.17,

[0322] • Support alternative 3: The UE may be configured with joint DL / UL TCI or separate DL / UL TCI via MAC CE signaling.

[0323] In the case of separate TCI states, a single TCI state field in the DCI format is used to indicate the DL TCI state and / or the UL TCI state. If it is a TCI state, there are at least two alternatives for the indication:

[0324] -Alternative 1: Pair uplink TCI state and downlink TCI state for each code point. The TCI state ID indicates a pair of DL TCI state and UL TCI state. Since the TCI state bit field is only 3 bits, when 8 DL TCI states are activated and 8 UL TCI states are activated, 8 pairs of DL / UL TCI states out of the potential 64 pairs of DL / UL TCI states can be activated at one time for indication.

[0325] -Alternative 2: The activated code point of the TCI state is either the DL TCI state or the UL TCI state. For example, half of the activated code points are DL TCI states and the other half are UL TCI states. In a single instance of a DCI format for beam indication, either the DL TCI state or the UL TCI state may be indicated. Two DCI formats for beam indication would be required to indicate both the DL TCI state and the UL TCI state. In this case, the TCI state field with 3 bits can potentially indicate one of 16 pairs of DL / UL TCIs transmitted on two DCI formats.

[0326] There are various advantages and disadvantages to consider for Alternative 1 and Alternative 2. For example, with Alternative 1, a single DCI format can update both the DL TCI state and the UL TCI state, whereas Alternative 2 requires two TCI formats for it. On the other hand, Alternative 2 allows activation of more DL / UL TCI state pairs, which will result in fewer MAC CE activations for TCI states compared to Alternative 1.

[0327] Proposal 5: Based on the unified TCI framework of Rel.17,

[0328] For individual TCI status indications, further consider the following alternatives:

[0329] o Alternative 1: The activated TCI state code point corresponds to a pair of DL TCI state and UL TCI state.

[0330] o Alternative 2: The activated TCI status code points are split into DL, UL and (if supported) DL+UL TCI status code points.

[0331] Proposal 7:

[0332] On the Rel.17 unified TCI framework:

[0333] ● Support alternative C. UE calculates path loss based on periodic DL RS configured as source RS for determining spatial TX filter in UL or (if applicable) joint TCI state

[0334] o The UE does not expect the UL / Joint TCI state to be configured with an aperiodic or semi-static source DL RS.

[0335] o If the UL / Joint TCI state has a UL source RS, then the PL-RS is the source RS of the UL RS, which is a periodic DL RS.

[0336] ● Regardless of the result, the determination of PL-RS does not support a fallback strategy.

[0337] ●When supporting the Rel-17 unified TCI framework, the Rel-17 PL-RS is determined as a basic feature.

[0338] • The UE maintains up to 4 PL-RS corresponding to the lowest order active UL / Joint TCI state. A UE signaling with UL / Joint TCI state (where the UE does not maintain PL-RS) uses the PL-RS of the TCI state corresponding to the lowest order codepoint associated with the PL RS.

[0339] TCI status pool for separate UL / DL

[0340] In RAN1#104b-e, this topic is not discussed. In RAN1#103-e [2], in addition to joint beam indication, it is agreed to adapt separate beam indication for UL and DL. The open point according to RAN1#103-e agreement is whether to use a TCI state pool common (same) as the DL TCI state or a TCI state pool independent of the DL TCI state.

[0341] There are two cases to consider for DL / UL beam indication:

[0342] -Case 1: Joint DL / UL beam indication. Since the beam correspondence is preset, a common beam indication RS can be used for DL ​​and UL transmission. In this case, one RS can be used as a source RS or spatial relationship information for QCL Type-D for DL ​​transmission and UL transmission, respectively. Therefore, the TCI state indicates the same source RS for DL ​​transmission and UL transmission.

[0343] - Case 2: Separate DL / UL beam indication. For the special case of MPE, where the UL beam is selected not to correspond to the DL beam, separate beam indication RSs may be used for DL ​​transmission and UL transmission.

[0344] According to Case 1 and Case 2, there are three types of TCI status indications:

[0345] -Joint TCI state for DL ​​and UL beam indication (Case 1).

[0346] -DL TCI status in case of separate DL and UL beam indication (Case 2 DL).

[0347] -UL TCI status in case of separate DL and UL beam indication (Case 2 UL).

[0348] The TCI state for joint beam indication contains a component for the beam indication of the DL channel, and a component for the beam indication of the UL channel. Therefore, it seems natural to reuse the same TCI state pool in the case of separate DL / UL beam indication, thereby

[0349] - Indicating the DL TCI state according to a common TCI state pool so that the components related to the DL beam indication are used to determine the DL beam.

[0350] -Indicating the UL TCI state according to a common TCI state pool so that the components related to the UL beam indication are used to determine the UL beam.

[0351] This is especially true when there is symmetry between the source RSs used for DL ​​QCL reference and UL spatial reference. This is feasible in terms of beam correspondence and motivates the use of SRS as the source RS for DL ​​QCL reference.

[0352] Figure 7 R1-2105291, Multi-beam enhancement: Common TCI state pool for joint and individual DL / UL beam indication Figure 1 Reappearance of.

[0353] Proposal 8:

[0354] For the purpose of UL TCI state indication, the TCI state is selected from a common TCI state pool in case of separate DL / UL beam indication. The same pool is also used for joint TCI state indication, as well as DL TCI state indication in case of separate DL / UL beam indication.

[0355] *****************End of quote

[13] ********************************

[0356] ****************Quote

[14] Start********************************

[0357] TCI state pool for UL TCI (for separate DL / UL TCI)

[0358] Later, in RAN1#103[2], it was agreed that two separate TCI states (Alternative 2), one for DL ​​and the other for UL, would be used for separate DL / UL TCI updates. Therefore, according to the agreement in RAN1#102[1] and RAN1#103[2], the DL TCI state will be the same as the joint DL / UL TCI state, where the DL TCI state is taken from the same TCI state pool for joint DL / UL TCI updates. The remaining question is whether to adopt Alternative 2-1 or Alternative 2-2 for the UL TCI state.

[0359] In RAN1#104, a FL proposal was provided for this pending issue [4]:

[0360]

[0361] On Alt1, since the DL TCI adopts the same TCI pool for joint DL / UL TCI update, the UL TCI state will also adopt the same pool, which means that a single TCI state pool can be used to support joint or separate DL / UL TCI updates. Compared with Alternative 1, Alternative 2 requires an additional TCI state pool dedicated to UL TCI. In the main FR2 operation where beam correspondence is generally maintained, both the Rx beam for DL ​​reception and the Tx beam for UL transmission can be determined based on DL measurements on the same set of DL RSs. Therefore, a separate TCI state pool UL seems to be redundant. In addition, if the TCI state pool can be used for joint DL / UL TCI update, then we have not understood why the same pool cannot be used for separate TCI update of UL.

[0362] Proposal 9: On the Rel.17 unified TCI framework, in the case of separate DL / UL TCI, support UL TCI and joint DL / UL TCI to share the same TCI state pool.

[0363] ● Note: By previous agreement, DL TCI shares the same TCI state pool for joint DL / UL TCI

[0364] ****************End of Quote

[14] ************************************

[0365] Some or all of the following terms and assumptions may be used herein.

[0366] -Base Station (BS): A network central unit or network node in New Radio (NR) that controls one or more Transmission / Reception Points (TRPs) associated with one or more cells. Communication between the BS and the TRPs is via the forwarding route. The BS may be referred to as a Central Unit (CU), eNB, gNB, or NodeB.

[0367] -TRP: A transmission reception point provides network coverage and communicates directly with a user equipment (UE). A TRP may be referred to as a distributed unit (DU) or a network node.

[0368] -Cell: A cell consists of one or more associated TRPs, for example, the coverage of a cell consists of the coverage of all associated TRPs. A cell is controlled by one BS. A cell can be called a TRP group (TRPG).

[0369] In NR Rel-15, beamforming techniques are adopted to conquer high power penetration in high frequency bands, for example, above 6 GHz. Therefore, both gNB and UE can use some transmit beams and / or receive beams to make high throughput data in such high frequency bands reliable. How to select suitable transmit beams and / or receive beams plays an important role in NR Rel-15. Beam indications for various channels and reference signals are also well discussed and captured in the specification along with the development of NR. Some of the beam indications in Rel-15 will be briefly introduced below. The beam indication of the Physical Downlink Control Channel (PDCCH) is that the UE can be configured with one or more Transmission Configuration Indicator (TCI) states for PDCCH, and / or receive a Medium Access Control (MAC) control element (CE) that activates a TCI state. The beam indication of the physical downlink shared channel (PDSCH) is that the UE can be configured with one or more TCI states for the PDSCH, receive a MAC CE that activates one or more TCI states, and / or receive downlink control information (DCI) indicating a TCI state via the TCI field. The beam indication of the channel state information reference signal (CSI-RS) is that the UE can be configured with a CSI-RS with an associated TCI state or configured with a quasi co-location (QCL) source reference signal (reference signal, RS) (which can be regarded as a TCI state). The beam indication of the physical uplink control channel (PUCCH) is that the UE can be configured with a PUCCH associated with a source RS indicated by a PUCCH spatial relationship, and / or the UE can receive a MAC CE to update the source RS or PUCCH spatial relationship for the beam indication of the PUCCH. The beam indication for the Configured-Grant (CG) Physical Uplink Shared Channel (PUSCH) is that the UE can be configured with a CG type 1 PUSCH associated with the source RS indicated by the Sounding Reference Signal (SRS) resource indicator.Beam indication for CG PUSCH is that the UE may be configured with a CG type 2 PUSCH associated with a source RS indicated by an SRS resource indicator via (activation) DCI. Beam indication for PUSCH is that the UE may be configured with one or more SRS resources and receive a DCI indicating one SRS resource as a QCL source reference associated with a scheduled PUSCH.

[0370] For PDSCH in NR Rel-15, the UE may receive a MAC CE indicating up to 8 TCI states out of a maximum number of (configured) TCI states (e.g., 128 configured TCI states) (e.g., [1]

[0371] Session 6.1.3.14 in 3GPP TS 38.321 V16.4.0 (2021-03). The UE may receive DCI with a TCI field indicating a code point associated with a MAC CE indicating a TCI state. However, in NR Rel-15, at least from the UE's perspective, beam indications for receiving downlink (DL) transmissions only consider transmissions from a single TRP and / or usage panel within a duration (e.g., one slot or microslot).

[0372] In NR Rel-16, people and companies resumed considering DL transmissions from multiple TRPs and / or panels. For transmissions from multiple TRPs and / or panels, it may imply that a single DL transmission may be performed by different beams from multiple TRPs and / or panels. It may also mean that a UE may receive multiple DL transmissions from multiple TRPs and / or panels within a duration (e.g., a timeslot or a mini-slot). In NR Rel-16, multiple TRP scenarios have also been taken into account to enhance Ultra-Reliable Low Latency Communication (URLLC). Therefore, we provide some PDSCH repetition schemes to improve the reliability of receiving PDSCH. Some examples may be Spatial Division Multiplexing (SDM) repetition schemes, Frequency Division Multiplexing (FMD) repetition schemes, mini-slot-based repetition schemes, and timeslot-based repetition schemes. In the case of multiple transmission and reception point (mTRP) PDSCH, a transport block (TB) may be transmitted via more than one beam or TCI state or spatial relationship. In order to indicate two TCI states for mTRP via a single DCI, a MAC CE (e.g., Session 6.1.3.24 in [1] 3GPP TS 38.321 V16.4.0 (2021-03)) is used to associate one or more code points of the TCI field with one or more TCI state identities (IDs). The MAC CE may be associated with up to 16 TCI state IDs, and the field Ci may indicate one or two TCI states for the code point of the TCI field. The UE may receive a DCI having a TCI field indicating one code point, and if the one code point indicates one TCI state as associated with the MAC CE, the UE considers a single TRP, and if the one code point indicates two TCI states as associated with the MAC CE, the UE considers mTRP / multiple TRPs.

[0373] In NR Rel-17, attempts are made to provide a unified beam indication framework for DL ​​and UL, UE-specific DL channels and / or signals, and UE-specific uplink (Uplink, UL) channels and / or signals. One motivation is to reduce signaling overhead and provide a unified beam indication framework for DL ​​and UL channels and / or signals. One motivation is that in most practical deployments, UEs use the same UE beam for downlink reception and / or the same UE beam for uplink transmission. In addition, in typical frequency range 2 (FR2) bands, since beam correspondence may be the main scenario, it is beneficial to provide a joint beam for DL ​​and UL. In contrast, due to some Maximum Permissible Exposure (MPE) issues of some UE beams (e.g., considering the adjustment of the maximum transmit power limit of some UE beams to the human body), a joint beam for DL ​​and UL cannot be guaranteed, and separate beam indications for DL ​​and UL can be used for this scenario. For separate DL / UL TCI states, beam indication of two TCI states associated with DL TCI state and UL TCI state may be considered with respect to signaling overhead. However, if the UE is configured with separate one or more DL TCI states and one or more UL TCI states that may share the same TCI state ID, how does the UE identify which TCI state a codepoint in the TCI field is associated with, and whether it is associated with a DL+UL TCI state? Another question is if the UE is configured with one or more TCI states, and each TCI state may refer to or include DL and / or UL TCI states or components, how does the UE identify which part of the TCI state a codepoint of the TCI field is associated with? For example, considering separate DL / UL TCI states and a shared TCI state pool with TCI states including DL and UL TCI components, when the UE receives a DCI with a TCI field indicating a codepoint associated with a TCI state, how does the UE know whether it refers to "DL", "UL", "DL+UL" of the TCI state? In addition, considering the mTRP PDSCH in Rel-16 and the mTRP PUSCH in Rel-17, with the introduction of two additional TCI states associated with DL TCI and UL TCI, the eight possible combinations may be: "1 DL", "1 UL", "2 DL", "2 UL", "1 DL+1 UL", "1 DL+2UL", "2 DL+1 UL", "2 DL+2 DL". The way in which the UE knows the code point of the TCI field is associated with the combination that can be further designed.

[0374] Preferably, in some embodiments, a (DL or UL) TCI state may include any one or combination of the following:

[0375] -TCI status ID.

[0376] - One or two DL / UL identifiers.

[0377] - One or two Cell IDs / CC IDs.

[0378] - One or two source RS(ID) used to indicate QCL type D information and / or spatial information.

[0379] - One or two QCL types.

[0380] - One or two PL RS(ID).

[0381] - One or two power control parameters (e.g., p0-ID, α and / or closed loop index)

[0382] Preferably, in some embodiments, one TCI state may include a DL component and a UL component.

[0383] Preferably, in some embodiments, the DL component of a TCI state may include any one or a combination of the following:

[0384] - One or two DL / UL identifiers.

[0385] - One or two Cell IDs / CC IDs.

[0386] - One or two source RS(ID) used to indicate QCL type D information and / or spatial information.

[0387] - One or two QCL types.

[0388] Preferably, in some embodiments, the UL component of a TCI state may include any one or a combination of the following:

[0389] - One or two DL / UL identifiers.

[0390] - One or two Cell IDs / CC IDs.

[0391] - One or two source RS(ID) used to indicate QCL type D information and / or spatial information.

[0392] - One or two QCL types.

[0393] - One or two PL RS(ID).

[0394] - One or two power control parameters (eg, p0-ID, α and / or closed loop index).

[0395] Preferably, in some embodiments, the source RSs of the spatial filters in one TCI state for DL ​​(component) and UL (component) may be different.

[0396] According to the current RAN1 agreement, DCI format 1_1 / 1_2 with or without downlink allocation can be used for beam indication of unified TCI framework. In the case of this unified beam indication via DCI, beam update can be faster than some beam indications in the traditional release using MAC CE and / or RRC signaling. By reusing the TCI field in DCI format 1_1 / 1_2, the code point of the TCI field can indicate at least a joint TCI state, a separate DL TCI state and / or a separate UL TCI state. The joint TCI state may mean or refer to the TCI state applied to DL and UL (e.g., applied to one or more DL channels / signals and applied to one or more UL channels / signals). The separate UL TCI state may mean or refer to the TCI state applied only to DL (e.g., applied to one or more DL channels / signals). The separate UL TCI state may mean or refer to the TCI state applied only to UL (e.g., applied to one or more UL channels / signals). The UE may transmit HARQ-ACK feedback corresponding to DCI format 1_1 / 1_2. The timing at which the UE applies the new or updated beam indication according to the Rel-17 beam indication may be the first symbol or the first time slot after another timing plus a time slot. The other timing may be that the UE receives a DCI format 1_1 / 1_2 for indicating a unified beam indication, receives a PDSCH scheduled by the DCI format 1_1 / 1_2 for indicating a unified beam indication, receives a DCI format 1_1 / 1_2 for indicating a unified beam indication plus a second time slot, and / or transmits HARQ-ACK feedback corresponding to the scheduled PDSCH or DCI format 1_1 / 1_2. Preferably, it can be assumed that the other timing may be that the UE transmits HARQ-ACK feedback corresponding to DCI format 1_1 / 1_2.

[0397] Preferably, in some embodiments, one or more bits in DCI format 1_1 / 1_2 may indicate information of the applied direction of the beam indication and / or information of sTRP or mTRP. Preferably, one or more bits in DCI format 1_1 / 1_2 may be used to distinguish whether the TCI field in DCI format 1_1 / 1_2 is associated with the applied direction of the beam indication and / or the number of 1 or 2 TCI states (for example, 1 TCI state is associated with sTRP, and 2 TCI states are associated with mTRP). Preferably, one or more bits in DCI format 1_1 / 1_2 may indicate information of one of 1 DL, 1UL, 1 DL+1 UL. Preferably, one or more bits in DCI format 1_1 / 1_2 may indicate information of one of the following: 1 DL, 1 UL, 1 DL+1UL, 1 DL+2 UL, 2 DL+1 UL, 2 DL, 2 UL, 2 DL+2 UL. For example, two bits are included in DCI format 1_1 / 1_2 for indicating information of the applied direction of beam indication. For two bits indicating the combined information as "1DL", the code point of the TCI field is associated with a TCI state from the DL TCI state pool or a DL component of one TCI state. For bits indicating the combined information as "1 DL+1 UL", the code point of the TCI field is associated with a TCI state from the DL TCI state pool and from the UL TCI state pool or a DL component and a UL component of one TCI state.

[0398] Alternatively and / or preferably, in some embodiments, one or more bits in DCI format 1_1 / 1_2 may indicate information of the direction to which the beam indication is applied, and one or more bits in MAC CE may indicate information of sTRP or mTRP. In other words, MAC CE may provide information of whether a code point of TCI field is associated with sTRP or mTRP. For the (i+1)-th code point of TCI field associated with mTRP, after receiving DCI format 1_1 / 1_2, in which one or more bits indicate 1 DL and indicate the (i+1)-th code point of TCI field, UE may determine that DCI format 1_1 / 1_2 provides information of beam indication for mTRP of DL. For the (i+1)-th code point of the TCI field associated with the sTRP, after receiving DCI format 1_1 / 1_2, in which one or more bits indicate 1 DL+1 UL and indicate the (i+1)-th code point of the TCI field, the UE can determine that DCI format 1_1 / 1_2 provides beam indication information for the sTRP of DL and the sTRP of UL.

[0399] Preferably, in some embodiments, the information of one code point of the TCI field may include one or more TCI state IDs.

[0400] Preferably, in some embodiments, the information of one code point of the TCI field may include information for locating one or more TCI state IDs. Preferably, the information of one code point of the TCI field may include a bandwidth part (Bandwidth Part, BWP) ID and / or CC ID.

[0401] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating any one of "1 DL", "1 UL", "1 DL+1 UL" for one code point of the TCI field.

[0402] Preferably, in some embodiments, the information of a code point of the TCI field may include information for identifying which DL / UL TCI state pool a TCI state ID is associated with. Preferably, "1" is used for the DL TCI state pool and "0" is used for the UL TCI state pool, or "1" is used for the UL TCI state pool and "0" is used for the DL TCI state pool.

[0403] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating DL or UL of a first TCI state ID for one code point of the TCI field.

[0404] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating the number of TCI state IDs associated with one code point of the TCI field.

[0405] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating one or two TCI state IDs associated with the one code point of the TCI field.

[0406] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating two TCI state IDs associated with DL and UL, respectively, for one code point of the TCI field.

[0407] Preferably, in some embodiments, the information of a code point of the TCI field may include information indicating any one of the following: "1 DL", "1 UL", "2 DL", "2 UL", "1 DL+1UL", "1 DL+2 UL", "2 DL+1 UL", "2 DL+2 DL" for a code point of the TCI field.

[0408] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating two TCI state IDs associated with DL or UL, 2 DL or 2 UL, respectively, for one code point of the TCI field.

[0409] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating three TCI state IDs associated with 2 DL and 1 UL, or 1 DL and 2 UL, respectively, for one code point of the TCI field.

[0410] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating four TCI state IDs associated with 2 DL and 2 UL, respectively, for one code point of the TCI field.

[0411] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating any one of "1 DL", "1 UL", "1 DL+1 UL" for one code point of the TCI field.

[0412] Preferably, in some embodiments, information of one code point of the TCI field may include information indicating a DL component / part, UL component / part or DL+UL component / part of a TCI state ID (for the code point of the TCI field).

[0413] Preferably, in some embodiments, the information of a code point of the TCI field may include information indicating the component / part of a TCI state ID associated with the code point of the TCI field.

[0414] For example, for the code point "000" of the TCI field, the UE may receive information indicating a TCI state ID associated with the code point "000" of the TCI field, and the UE may receive information indicating a DL component, a UL component, or a DL+UL component using the TCI state ID. If the information indicates a UL component, the code point "000" of the TCI field may be associated with the TCI state ID, and / or the UE regards "000" as a beam indication of the UL TCI. Preferably, upon receiving a DCI having a TCI field indicating the code point "000", the UL TCI state or UL beam of one or more UL channels or signals is updated based on the UL component of the TCI state ID (if the current / old UL TCI state or UL beam is different from the UL TCI state or UL beam). The UE may transmit an uplink transmission via the updated UL beam from the first time slot for a duration after the UE transmits the HARQ-ACK information corresponding to the DCI.

[0415] Preferably, in some embodiments, the information of a code point of the TCI field may include information indicating any one of the following: "1 DL", "1 UL", "2 DL", "2 UL", "1 DL+1UL", "1 DL+2 UL", "2 DL+1 UL", "2 DL+2 DL" for a code point of the TCI field.

[0416] Preferably, in some embodiments, the information of a code point of the TCI field may include information indicating any of the following: one "1DL", "1UL", "2 DL", "2 UL", "1 DL+1 UL", "1 DL+2 UL", "2 DL+1 UL", "2 DL+2 DL" for one or two TCI state IDs associated with a code point of the TCI field.

[0417] Preferably, in some embodiments, the information of one code point of the TCI field may include information indicating one or two TCI state IDs for the code point of the TCI field.

[0418] Preferably, in some embodiments, information of one code point of the TCI field may include information indicating whether there are 2 TCI state IDs for the same transmission direction. Preferably, information of one code point of the TCI field may include information indicating whether there are 2 TCI state IDs for DL ​​and / or whether there are 2 TCI state IDs for UL. Preferably, information of one code point of the TCI field may include information indicating whether a DL component of 1 TCI state ID or 2 TCI state IDs is applied or used. Preferably, information of one code point of the TCI field may include information indicating whether a UL component of 1 TCI state ID or 2 TCI state IDs is applied or used. Preferably, information of one code point of the TCI field may include information indicating whether at least one DL component and UL component of 1 TCI state ID (associated with the code point of the TCI field) is applied or used. Preferably, information of one code point of the TCI field may include information indicating whether a DL component or UL component of other TCI state IDs (associated with the code point of the TCI field) is applied or used.

[0419] Preferably, in some embodiments, one or two octets may be a bitmap (information for indicating up to 8 code points of the TCI field).

[0420] Preferably, in some embodiments, the leftmost bit in the octet is the MSB. Preferably, the rightmost bit in the octet is the LSB. Alternatively, the leftmost bit in the octet is the LSB. Alternatively, the rightmost bit in the octet is the MSB.

[0421] Concept 1

[0422] This concept is to provide at least two octets in the MAC CE for indicating information associated with the use of several code points in the TCI field or the applied transmission direction. Alternatively, this concept is to provide at least two bits in the MAC CE for indicating information associated with the use of one code point in the TCI field or the applied transmission direction. Each of the at least two bits included in the MAC CE may be non-contiguous (e.g., contiguous may mean in the same octet, or the LSB of the xth octet and the MSB of the (x+1)th octet, or the MSB of the xth octet and the LSB of the (x+1)th octet).

[0423] The UE may be configured with one or more DL TCI states and one or more UL TCI states in a BWP and / or a component carrier (CC). The TCI state ID of at least one of the one or more DL TCI states is the same as the TCI state ID of at least one of the one or more UL TCI states.

[0424] (Each) two bits (from two octets) may indicate information associated with the use or applied direction of beam indication for one code point of the TCI field.

[0425] (Each) two bits (from two octets) may indicate information on whether one TCI state ID (associated with a code point of the TCI field) is associated with one or more DL TCI states or with one or more UL TCI states.

[0426] (Each) two bits (from two octets) may indicate information whether one code point of the TCI field is associated with one or two TCI state IDs.

[0427] (Each) two bits (from two octets) may indicate information as to whether a code point of the TCI field is associated with one or two TCI states.

[0428] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0429] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, one UL TCI state, or one DL TCI state and one UL TCI state.

[0430] For example, Figure 8 Show at least two octets ( Figure 8 The second top octet and the third top octet in the TCI field are included in the MAC CE. The two octets include eight 2-bit fields (e.g., S0 to S7). Si indicates information of DL, UL, or DL+UL for the (i+1)-th code point of the TCI field. Preferably, Si indicates information of DL, UL, DL+UL, or UL_DL for the (i+1)-th code point of the TCI field. Preferably, Si may indicate one or more TCI state IDs associated with the (i+1)-th code point of the TCI field. The (i+1)-th code point of the TCI field may be associated with TCI state ID i,1 and TCI state ID i,2 (if present). Preferably, (if Si does not indicate an association between DL+UL and two TCI state IDs), then the first TCI state ID (e.g., TCI state ID i,1) is associated with the DL and the second TCI state ID (e.g., TCI state ID i,2). Based on Si indicating the DL+UL information, the (i+1)-th code point of the TCI field may include two TCI states associated with DL and UL, respectively. Figure 8 In method A, the MAC CE may include information for locating the TCI state ID (eg, CC ID and / or BWPID). Preferably, in method A, Ci may be a reserved bit.

[0431] For example, Fig. 9 Based on Figure 8An example of a MAC CE format of , where S0 indicates information of D+U, and S1 indicates information of U, and S2 indicates information of D+U. If the MAC CE includes 5 octets of information with a TCI state ID, the UE will determine that the first octet and the second octet of the information with the TCI state ID are associated with the code point "000" of the TCI field. The UE will determine that the third octet of the information with the TCI state ID is associated with the code point "001" of the TCI field. The UE will determine that the fourth octet and the fifth octet of the information with the TCI state ID are associated with the code point "010" of the TCI field. Based at least on the number of octets associated with the information of the TCI state ID and Si, the UE can determine the association between the code point of the TCI field and one or two TCI state IDs. In this example, since there are only 5 octets associated with the information of the TCI state ID, the code points of the TCI field ("011", "100", "101", "110", "111") may not have activated the TCI state (due to no associated TCI state ID). The UE may ignore S3-S7. With this MAC CE format, the number of activated TCI states may be lower than the number of code points of the TCI field. Preferably, it may help reduce the number of activated TCI states that the UE has to maintain and measure, which has the benefit of power saving.

[0432] The UE may be configured with one or more TCI states. Preferably, each of the one or more TCI states includes a DL component and / or a UL component.

[0433] (Each) two bits (from two octets) may indicate information of the applied DL component / part and / or UL component / part of one or two TCI states associated with one code point of the TCI field.

[0434] (Each) two bits (from two octets) may indicate information about the use or applied direction of beam indication for one code point of the TCI field.

[0435] (Each) two bits (from two octets) may indicate information of which component of the DL component and / or UL component of the TCI state associated with one code point of the TCI field is applied or used.

[0436] (Each) two bits (from two octets) may indicate information whether one code point of the TCI field is associated with one or two TCI state IDs.

[0437] (Each) two bits (from two octets) may indicate information as to whether a code point of the TCI field is associated with one or two TCI states.

[0438] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with an applied DL component / part and / or UL component / part of one or two TCI states, wherein the one or two TCI states may be associated with one code point of the TCI field.

[0439] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL component / part of the TCI state and / or a UL component / part of the TCI state.

[0440] For example, Figure 8 At least two octets are shown to be included in the MAC CE. The two octets include eight 2-bit fields (e.g., S0 to S7). Alternatively and / or preferably, in some embodiments, Si may be discontinuous for consecutive values ​​i. Si may not be a continuous field. Si indicates information about DL, UL, or DL+UL for the (i+1)-th code point of the TCI field. Preferably, Si indicates information about DL, UL, DL+UL, or UL_DL for the (i+1)-th code point of the TCI field. Preferably, Si may indicate which component of the TCI state associated with the (i+1)-th code point of the TCI field is used or applied. The (i+1)-th code point of the TCI field may be associated with TCI state IDi,1. For the mTRP mechanism, one code point of the TCI field may need to be associated with two DL TCI states or two UL TCI states. Preferably, Ci may indicate whether TCI state IDi,2 exists for the (i+1)-th code point of the TCI state. Preferably, the information indicated by Si is also applicable to TCI state IDi,2. Based on Si indicating information of DL+UL, the (i+1)-th code point of the TCI field may include information of the DL component and the UL component of the TCI state associated with TCI state ID i,1. Preferably, for Ci indicating information of 2 TCI states, TCI state IDi,1 and TCI state IDi,2 are associated with DL and UL, respectively. Preferably, the UE may ignore the information indicated by Si.

[0441] For example, Fig.10 Based on Figure 8An example of a MAC CE format. S0 indicates information of D+U, and S1 indicates information of U, S2 indicates information of D, S3 indicates information of D+U, and S4 indicates information of D. Alternatively and / or preferably, Si may be discontinuous for continuous values ​​of i. Based on S0, the DL and UL components of the TCI state with TCI state ID0,1 are associated with the code point "000" of the TCI field. Based on S0, the code point "000" of the TCI field is used to indicate the beam of DL and the beam of UL. Based on S0, after receiving the DCI with the code point "000" of the TCI field, the UE performs an update of the DL beam and the UL beam. Based on C3 indicating information of mTRP (e.g., 2 TCI state IDs), TCI state ID3,1 and TCI state ID3,2 are associated with the code point "011" of the TCI field. According to S3 and C3, the DL and UL components of the two TCI states are associated with TCI state ID 3,1, and TCI state ID 3,2 is associated with code point "011" of the TCI field.

[0442] If the MAC CE includes 7 octets of information with a TCI state ID, the UE will determine that the first octet of the information with the TCI state ID is associated with the code point "000" of the TCI field. The UE will determine that the second octet of the information with the TCI state ID is associated with the code point "001" of the TCI field. The UE will determine that the third octet of the information with the TCI state ID is associated with the code point "010" of the TCI field. The UE will determine that the fourth and fifth octets of the information with the TCI state ID are associated with the code point "011" of the TCI field. The UE will determine that the sixth and seventh octets of the information with the TCI state ID are associated with the code point "100" of the TCI field. Based at least on the number of octets associated with the information of the TCI state ID, Si and Ci, the UE may determine the association between the code point of the TCI field and one or two TCI state IDs. In this example, since there are only 7 octets associated with the information of the TCI state ID, the code points of the TCI field ("101", "110", "111") may not have activated the TCI state (due to no associated TCI state ID). The UE may ignore S5-S7. With this MAC CE format, the number of activated TCI states may be lower than the number of code points of the TCI field. Preferably, it may help reduce the number of activated TCI states that the UE has to maintain and measure, which has the benefit of power saving.

[0443] An alternative is at least two octets (e.g. Fig.17S0~S7 in MAC CE) is included in the MAC CE for indicating information of the DL component, UL component or DL+UL component of the TCI state, wherein the TCI state IDi,1 is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. Preferably and / or alternatively, Si (e.g., 2 bits) included in the MAC CE indicates information of the DL component, UL component or DL+UL component of the TCI state, wherein the TCI state IDi,1 is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. Tj with a value of 1 indicates an activated TCI state. The (i+1)-th code point of the TCI field is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. The MAC CE may include an octet, wherein the octet includes a bitmap from T0 to T(N-4)*8+7. For example, if T8 and T10 in the bitmap have a value of 1, respectively, T8 is associated with S0 and T10 is associated with S1. For Si indicating information of a DL component, the (i+1)-th Tj having a value of 1 is associated with the DL component of the TCI state, and / or the (i+1)-th code point of the TCI state is associated with a DL beam indication. For Si indicating information of a UL component, the (i+1)-th Tj having a value of 1 is associated with the UL component of the TCI state, and / or the (i+1)-th code point of the TCI state is associated with a UL beam indication. For Si indicating information of a DL+UL component, the (i+1)-th Tj having a value of 1 is associated with the DL+UL component of the TCI state, and / or the (i+1)-th code point of the TCI state is associated with a DL+UL beam indication.

[0444] Another alternative is at least two octets (e.g. Fig.17S0~S7) in the MAC CE are included in the MAC CE, indicating information of a DL TCI state pool, a UL TCI state pool or a DL+UL TCI state pool of TCI states, wherein the TCI state IDi,1 is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. Preferably and / or alternatively, Si (e.g., 2 bits) included in the MAC CE indicates information of a DL TCI state pool, a UL TCI state pool or a DL+UL state pool of TCI states, wherein the TCI state IDi,1 is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. Tj with a value of 1 indicates an activated TCI state. The (i+1)-th code point of the TCI field is associated with the (i+1)-th Tj, wherein the value 1 starts from T0. The MAC CE may include an octet including a bitmap from T0 to T(N-4)*8+7. For example, if T8 and T10 in the bitmap have a value of 1, respectively, T8 is associated with S0 and T10 is associated with S1. For Si indicating information of the DL TCI state pool, the (i+1)-th Tj having a value of 1 is associated with a TCI state from the DL TCI state pool, and / or the (i+1)-th code point of the TCI state is associated with a DL beam indication. For Si indicating information of the UL TCI state pool, the (i+1)-th Tj having a value of 1 is associated with a TCI state from the UL TCI state pool, and / or the (i+1)-th code point of the TCI state is associated with a UL beam indication. For Si indicating information of the DL+UL TCI state pool, the (i+1)-th Tj with a value of 1 is associated with a TCI state from the DL TCI state pool and from the UL TCI state pool, and / or the (i+1)-th code point of the TCI state is associated with a DL+UL beam indication. Preferably, a TCI state from a DL TCI state pool with a TCI state ID is associated with a TCI state from a UL TCI state pool with the (same) TCI state ID. In other words, for Si indicating information of the DL+UL TCI state pool, there are two TCI states associated with the (i+1)-th code point of the TCI field, one of which is associated with a TCI state from the DL TCI state pool and the other is associated with a TCI state from the UL TCI state pool (with the same TCI state ID).

[0445] Another option for MAC CE format (based on Fig.17 ) can be Fig.18As shown. The MAC CE may include the last two octets (e.g., S0 to S7). Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​of i. The MAC CE may include one or more two bits (e.g., Si). The UE may determine whether the MAC CE includes "Oct N+2" based at least on the number of values ​​"1" in the bitmap (e.g., T0 to T(N-2)*8+7). For a bitmap including a number of "1"s less than or equal to 4, the MAC CE does not include Oct N+2. For a bitmap including a number of "1"s greater than 4, the MAC CE includes Oct N+2.

[0446] Another option for MAC CE format (based on Fig.17 ) may not include two octets. Alternatively, the MACCE may include a second bitmap for indicating information related to the TCI state of the UL (eg, the UL TCI state). Fig.19 As shown, Oct N+1 to Oct M may provide a second bitmap (e.g., P0 to P(MN-1)*8+7) for indicating information related to the TCI state of the UL. The (i+1)-th code point of the TCI field is associated with one or more TCI states based on at least the first bitmap (e.g., T0 to T(MN-1)*8+7) and the second bitmap (e.g., P0 to P(MN-1)*8+7). The (i+1)-th code point of the TCI field is associated with the (i+1)-th Tj having a value of 1 (if present) and the (i+1)-th Pk having a value of 1 (if present). Preferably, the value of j may be the same as or different from the value of k. In other words, one code point of the TCI field may be used for beam indication of DL, UL, or DL ​​and UL (based on the number of TCI states associated with the code point of the TCI field). The first bitmap may indicate information of the DL TCI state and / or TCI state of the DL component of the DL TCI state from the DL TCI state pool and / or the TCI state. The first bitmap may indicate information of the UL TCI state and / or TCI state of the UL component from the UL TCI state pool and / or the TCI state.

[0447] The MAC CE (also) indicates one or more TCI state IDs.

[0448] The MAC CE (also) indicates one or two TCI state IDs associated with one code point of the TCI field.

[0449] The MAC CE provides / indicates one or two TCI states through one or two TCI state IDs associated with one code point of the TCI field.

[0450] Based on one or two TCI state IDs, one code point of the TCI field may be associated with one or more TCI states (associated with the one or two TCI state IDs).

[0451] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one or more TCI states.

[0452] The number of code points is at most 8.

[0453] MAC CE is used to activate several TCI states.

[0454] The number of TCI states is at most 16.

[0455] Preferably, in certain embodiments, one or more DL TCI states may be associated with a DL TCI state pool.

[0456] Preferably, in certain embodiments, one or more UL TCI states may be associated with a UL TCI state pool.

[0457] Preferably, in certain embodiments, one DL and / or UL TCI state pool may be associated with a BWP and / or CC.

[0458] Concept 2

[0459] This concept is to provide at least one octet in the MAC-CE for indicating the first part of the information of several code points of the TCI field. Preferably, for the number of octets associated with the number of code points of the TCI field, the second part of the information of several code points of the TCI field can be indicated by the MSB / LSB bit. Alternatively, this concept is to provide at least one bit in the MAC CE for indicating the first part of the information of one code point of the TCI field. Each of the one or more bits included in the MAC CE can be non-contiguous (for example, continuous can mean in the same octet, or the LSB of the xth octet and the MSB of the (x+1)th octet, or the MSB of the xth octet and the LSB of the (x+1)th octet).

[0460] The first part of the information of the number of code points of the TCI field may include DL or UL information respectively indicating the number of code points of the TCI field.

[0461] The first part of the information of the code point of the TCI field may include information indicating DL or UL of a first TCI state (ID) for the code point of the TCI field.

[0462] Alternatively and / or preferably, in certain embodiments, the first part of the information for the several code points of the TCI field may include information indicating one or two TCI states (IDs) respectively for the several code points of the TCI field.

[0463] Alternatively and / or preferably, in certain embodiments, the first portion of the information for the code point of the TCI field may include information indicating one or two TCI states (IDs) for the code point of the TCI field.

[0464] The second part of the information of the number of code points of the TCI field may include DL or UL information respectively indicating the number of code points of the TCI field.

[0465] The second part of the information of the code point of the TCI field may include information indicating DL or UL of a first TCI state (ID) for the code point of the TCI field.

[0466] Alternatively and / or preferably, in some embodiments, the second part of the information for the several code points of the TCI field may include information indicating one or two TCI states (IDs) respectively for the several code points of the TCI field.

[0467] Alternatively and / or preferably, in some embodiments, the second part of the information for the code point of the TCI field may include information indicating one or two TCI states (IDs) for the code point of the TCI field.

[0468] The UE may be configured with one or more DL TCI states and one or more UL TCI states in the BWP and / or in the CC. The TCI state ID of at least one of the one or more DL TCI states is the same as the TCI state ID of at least one of the one or more UL TCI states.

[0469] (Each) bit (from an octet) may indicate the first portion of information for (each) code point of the TCI field.

[0470] Preferably, in some embodiments, (each) one bit (from one octet) may indicate the use of beam indication for one code point of the TCI field or information on the direction in which it is applied.

[0471] Preferably, in some embodiments, (each) one bit (from one octet) may indicate information of whether the first TCI state ID (associated with a code point of the TCI field) is associated with one or more DL TCI states or with one or more UL TCI states.

[0472] Alternatively and / or preferably, in certain embodiments, (each) one bit (from one octet) may indicate information whether (each) one code point of the TCI field is associated with one or two TCI state IDs.

[0473] Alternatively and / or preferably, in certain embodiments, (each) one bit (from one octet) may indicate information whether (each) one code point of the TCI field is associated with one or two TCI states.

[0474] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0475] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, one UL TCI state, or one DL TCI state and one UL TCI state.

[0476] For example, Fig.11 Show at least one octet ( Fig.11The second top octet in the TCI field) is included in the MACCE. One octet includes eight 1-bit fields (e.g., S0~S7). Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. Si indicates DL, UL information for the (i+1)-th code point of the TCI field (especially for TCI state IDi,1). The (i+1)-th code point of the TCI field may be associated with TCI state IDi,1 and TCI state IDi,2 (if present). Ci may be the MSB / LSB bit of the octet associated with TCI state IDi,1 or associated with the (i+1)-th code point of the TCI field. Based on Ci, the UE may determine whether there is a TCI state IDi,2 associated with the (i+1)-th code point of the TCI field. Based on at least Si and Ci, the UE may determine that TCI state IDi,1, TCI state IDi,2 is associated with "DL TCI state, UL TCI state" or "UL TCI state, DL TCI state". Based on Si, the UE may determine that TCI state ID i,1 is associated with one or more DL TCI states or one or more UL TCI states. Based on Ci indicating 2 TCI states for the (i+1)-th code point of the TCI field, the UE may consider that the (i+1)-th code point of the TCI field corresponds to at least 1 DL and at least 1 UL. In other words, the (i+1)-th code point of the TCI field indicates DL beam indication (via one of the two TCI states (IDs) associated with the (i+1)-th code point of the TCI field) and UL beam indication (via the other of the two TCI states (IDs) associated with the (i+1)-th code point of the TCI field). Upon receiving a DCI with a TCI field indicating the (i+1)-th code point, the UE shall update the DL beam and the UL beam based on the two TCI states associated with the (i+1)-th code point of the TCI field. Fig.11 In the MAC CE, the MAC CE may include information for locating the TCI state ID (e.g., CC ID and / or BWP ID). Preferably, for Ci indicating information of 2 TCI states, TCI state IDi,1 and TCI state IDi,2 are associated with DL and UL, respectively. Preferably, the UE may ignore the information indicated by Si.

[0477] For example, Fig.12 Based on Fig.11An example of a MAC CE format of . S0 indicates information of D, and S1 indicates information of U, and S2 indicates information of U. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. If the MAC CE includes 5 octets of information with a TCI state ID, the UE will determine, based at least on C0 indicating 2 TCI state IDs, that the first octet and the second octet of information with the TCI state ID are associated with the code point "000" of the TCI field. The UE will determine that the third octet of information with the TCI state ID is associated with the code point "001" of the TCI field. The UE will determine, based at least on C2 indicating 2 TCI state IDs, that the fourth octet and the fifth octet of information with the TCI state ID are associated with the code point "010" of the TCI field. Based at least on the number of octets associated with the information of the TCI state ID and Si, the UE may determine the association between the code point of the TCI field and one or two TCI state IDs. In this example, since there are only 5 octets associated with the information of the TCI state ID, the code points of the TCI field ("011", "100", "101", "110", "111") may not have activated the TCI state (due to no associated TCI state ID). The UE may ignore S3 to S7. With this MACCE format, the number of activated TCI states may be lower than the number of code points of the TCI field. Preferably, TCI state IDs 0,1 are associated with one DL TCI state (of one or more DL TCI states). Preferably, TCI state IDs 0,2 are associated with one UL TCI state (of one or more UL TCI states). Preferably, the code point "000" of the TCI field is associated with 1 DL TCI state and 1 UL TCI state. In other words, the code point "000" of the TCI field may indicate a DL beam via 1 DL TCI state and a UL beam via 1 UL TCI state. Preferably, it may help to reduce the number of activated TCI states to be maintained and measured by the UE, which has power saving benefits.

[0478] As an alternative example (with Fig.11 compared to), Fig.13 Show at least one octet ( Fig.13The second top octet in the TCI field) is included in the MAC CE. One octet includes eight 1-bit fields (e.g., S0 to S7). Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. Si indicates information of one or two TCI states (IDs) for the (i+1)-th code point of the TCI field. The (i+1)-th code point of the TCI field may be associated with TCI state IDi,1 and TCI state IDi,2 (if present and / or if Si indicates two TCI states (IDs)). Ci may be the MSB / LSB bit of the octet associated with TCI state IDi,1 or associated with the (i+1)-th code point of the TCI field. Ci may indicate DL or UL for TCI state IDi,1. Preferably, for Si indicating information of 2 TCI states, TCI state IDi,1 and TCI state IDi,2 are associated with DL and UL, respectively. Preferably, the UE may ignore the information indicated by Si.

[0479] The UE may be configured with one or more TCI states. Preferably, each of the one or more TCI states includes a DL component and / or a UL component.

[0480] (Each) bit (from an octet) may indicate the first portion of information for (each) code point of the TCI field.

[0481] Preferably, in certain embodiments, (each) one bit (from one octet) may indicate information of whether the TCI state ID (associated with a code point of the TCI field) is associated with at least a DL component of the TCI state or whether it is associated with a UL component of the TCI state.

[0482] Alternatively and / or preferably, in certain embodiments, (each) one bit (from one octet) may indicate information whether (each) one code point of the TCI field is associated with one component or two components of the TCI status.

[0483] Alternatively and / or preferably, in certain embodiments, (each) one bit (from one octet) may indicate information that one or both components of the TCI status are associated with one code point of the TCI field.

[0484] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0485] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, a UL component of one UL TCI state, or one DL component and UL component of one TCI state.

[0486] For example, Fig.14 At least one octet is shown to be included in the MAC CE. One octet includes eight 1-bit fields (e.g., S0 to S7). Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. Si indicates information of at least a DL component or a UL component of a TCI state associated with TCI state IDi,1 (associated with the (i+1)-th code point of the TCI field). Preferably, Si indicates information of at least DL (beam indication) or UL (beam indication) for the (i+1)-th code point of the TCI field. Preferably, Si may indicate which component of the TCI state associated with the (i+1)-th code point of the TCI field is used or applied. The (i+1)-th code point of the TCI field may be associated with the TCI state IDi,1. Preferably, for Ci indicating information of 2 TCI states, the (i+1)-th code point of the TCI field is associated with the DL and UL components of the TCI state associated with the TCI state IDi,1. Preferably, the UE may ignore the information indicated by Si.

[0487] For example, in Fig.15 In the example, S0 indicates information of DL, S1 indicates information of UL, and S2 indicates information of UL. Alternatively and / or preferably, Si may be discontinuous for continuous values ​​i. There are three octets with TCI state ID. C0 indicates information of two components, C1 indicates information of one component, and C2 indicates information of two components. In this example, one octet with TCI state ID is associated with one code point of TCI field. Code point "000" of TCI field (e.g., the 1st code point of TCI field) is associated with TCI state ID0,1. Based on the information indicated by C0 (e.g., two components), the UE will determine that the DL component and UL component of the TCI state associated with TCI state ID0,1 are associated or applied. Based on the information indicated by C0 (e.g., two components), the UE will determine that the code point "000" of TCI field may indicate a beam or an updated beam for DL ​​and UL. After receiving a DCI with a TCI field indicating code point "000", the UE can update the DL beam and the UL beam (simultaneously) based on the TCI state with TCI state ID0,1.

[0488] For another example, Fig.16The mTRP mechanism is shown, and at least two octets (e.g., S0 to S7) indicate which component of the TCI state is used. Si is associated with at least TCI state IDi,1. Alternatively and / or preferably, Si may be discontinuous for continuous values ​​i. Si may indicate information on (application / use) of a DL component, (application / use) of a UL component, or (application / use) of a DL component and a UL component of a TCI state associated with at least TCI state IDi,1. Ci may indicate whether there is information on TCI state IDi,2. Preferably, if Ci indicates information on two TCI states (e.g., mTRP), then the information through Si may (also) be applied to TCI state IDi,2. One code point of the TCI field may need to be associated with one or two TCI states based on Ci. Preferably, Ci may indicate whether there is TCI state IDi,2 for the (i+1)-th code point of the TCI state. Preferably, the information indicated by Si may also be applied to TCI state IDi,2. Based on Si indicating the information of DL+UL, the (i+1)-th code point of the TCI field may include information of a DL component and a UL component of a TCI state associated with TCI state ID i,1.

[0489] Preferably, in some embodiments, one octet in the MAC CE may be a bitmap (information for indicating up to 8 code points of the TCI field).

[0490] Preferably, in some embodiments, one bit in the bitmap may indicate information of one code point of the TCI field.

[0491] Preferably, in some embodiments, one bit in the bitmap may indicate information of one or two TCI states of one code point of the TCI field.

[0492] Preferably, in some embodiments, one bit (Si) in the bitmap may indicate information of the UL or DL ​​TCI state of one code point (the first TCI state, TCI state IDi,1) of the TCI field.

[0493] Preferably, in some embodiments, one bit (Si) in the bitmap may indicate information that one code point (first TCI state, TCI state IDi,1) of the TCI field is associated with one or more DL TCI states or one or more UL TCI states.

[0494] Preferably, in some embodiments, one bit (Si) in the bitmap may indicate information that one code point (the first TCI state, TCI state IDi,1) of the TCI field is associated with a DL TCI state pool or a UL TCI state pool.

[0495] Alternatively and / or preferably, in some embodiments, a bit (Si) in the bitmap may indicate information of one or two components of a TCI state (e.g., TCI state IDi,1) of 1 code point of the TCI field (e.g., the (i+1)-th code point of the TCI field).

[0496] Alternatively and / or preferably, in certain embodiments, one component of the TCI state may be a DL component of the TCI state or a UL component of the TCI state.

[0497] Alternatively and / or preferably, in certain embodiments, one component of the TCI state may be a DL component of the TCI state and a UL component of the TCI state.

[0498] Alternatively and / or preferably, in certain embodiments, one bit in the bitmap may indicate information of the DL / UL or DL+UL component of one TCI state (ID) of one code point of the TCI field.

[0499] Alternatively and / or preferably, in some embodiments, one bit (Si) in the bitmap may indicate information of a UL component or a DL component of the first TCI state (e.g., TCI state IDi,1) to which at least 1 code point of the TCI field (e.g., the (i+1)-th code point of the TCI field) is applied.

[0500] Preferably, in certain embodiments, the MAC CE may include an octet for indicating information of the BWP ID and / or CC ID, and / or the CORESETPoolIndex ID (if coresetPoolIndex is configured).

[0501] Preferably, in some embodiments, the MAC CE may include one or more bits for indicating information of the BWP ID and / or CC ID, and / or the CORESETPoolIndex ID (if coresetPoolIndex is configured).

[0502] Preferably, in some embodiments, CORESETPoolIndex ID is 0 or 1.

[0503] Preferably, in certain embodiments, the BWP ID is 0, 1, 2 or 3.

[0504] Preferably, in some embodiments, the CC ID (eg, serving cell ID) is 0, 1, . . . , or 31.

[0505] Preferably, in some embodiments, for a UE that is not configured with an mTRP scheme (eg, RepetitionSchemeConfig), Fig.14It may be an example of a MAC CE (format) for activating TCI state for DL ​​beam indication and / or UL beam indication.

[0506] Preferably, in some embodiments, for a UE configured with an mTRP scheme (eg, RepetitionSchemeConfig), Fig.16 It may be an example of a MAC CE (format) for activating TCI state for DL ​​beam indication and / or UL beam indication with mTRP scheme.

[0507] Concept 3

[0508] This concept is to provide at least three octets in the MAC CE for indicating information associated with the use or applied transmission direction and sTRP or mTRP for several code points of the TCI field. Alternatively, this concept is to provide at least three bits in the MAC CE for indicating information associated with the use or applied transmission direction of one code point of the TCI field. Each of the one or more three bits included in the MAC CE may be non-contiguous (for example, contiguous may refer to being in the same octet, or the LSB of the xth octet and the MSB of the (x+1)th octet, or the MSB of the xth octet and the LSB of the (x+1)th octet).

[0509] The UE may be configured with one or more DL TCI states and one or more UL TCI states in the BWP and / or in the CC. The TCI state ID of at least one of the one or more DL TCI states is the same as the TCI state ID of at least one of the one or more UL TCI states.

[0510] (Each) three bits (from three octets) may indicate information associated with the beam indication for one code point of the TCI field and the use or applied direction of sTRP or mTRP.

[0511] (Each) three bits (from three octets) may indicate information on whether one TCI state ID (associated with a code point of the TCI field) is associated with one or more DL TCI states or with one or more UL TCI states.

[0512] (Each) three bits (from three octets) may indicate information on whether one code point of the TCI field is associated with one or two TCI state IDs.

[0513] (Each) three bits (from three octets) may indicate information on whether a code point of the TCI field is associated with one or two TCI states.

[0514] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0515] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, one UL TCI state, or one DL TCI state and one UL TCI state.

[0516] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with sTRP DL, sTRP UL, mTRP DL, mTRP UL, sTRP DL and sTRP UL, sTRP DL and mTRP UL, sTRP UL and mTRP DL, or mTRP DL and mTRP UL.

[0517] Preferably, in certain embodiments, a sTRP may be associated with a TCI state.

[0518] Preferably, in certain embodiments, an mTRP may be associated with more than one TCI state.

[0519] Preferably, in certain embodiments, the mTRP may be associated with two TCI states.

[0520] For example, in Fig. 20In the MAC CE, Si may indicate information of sTRP / mTRP and DL / UL. For the total number of DL and UL associated with the information indicated by Si, the MAC CE may include at least the total number of octets for the (i+1)-th code point of the TCI field. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i. If S0 indicates information of 2DL+2UL, then for the first code point of the TCI field (e.g., "000" or "00" or "0" of the TCI field), the MAC CE may include at least four octets. TCI state ID0,1 may be associated with a (first) TCI state from a DL TCI state pool. TCI state ID0,2 may be associated with a (second) TCI state from a DL TCI state pool. TCI state ID0,3 may be associated with a (first) TCI state from a UL TCI state pool. TCI state ID0,4 may be associated with a (second) TCI state from a UL TCI state pool. For another example, if S0 indicates information of 2UL, then the MAC CE does not include octets associated with TCI state ID0,3 and TCI state ID0,4. In this example, TCI state ID0,1 is associated with the (first) TCI state from the UL TCI state pool, and TCI state ID0,2 is associated with the (second) TCI state from the UL TCI state pool. The number of octets associated with the code point of the TCI field (e.g., the (i+1)-th code point of the TCI field) may be determined based at least on the information from Si. If there are one or two DLs according to the information from Si, then the octet associated with TCI state IDi,1 is associated with the TCI state from the DL TCI state pool, and if two DLs from information Si are indicated, then the octet associated with TCI state IDi,2 is associated with the TCI state from the DL TCI state pool.

[0521] The UE may be configured with one or more TCI states. Preferably, each of the one or more TCI states includes a DL component and / or a UL component.

[0522] (Each) three bits (from three octets) may indicate information of the applied DL component / part and / or UL component / part of one or two TCI states associated with one code point of the TCI field.

[0523] (Each) three bits (from three octets) may indicate the use or applied direction of beam indication for one code point of the TCI field.

[0524] (Each) three bits (from three octets) may indicate information of which component of the DL component and / or UL component of the TCI state associated with one code point of the TCI field is applied or used.

[0525] (Each) three bits (from three octets) may indicate information on whether one code point of the TCI field is associated with one or two TCI state IDs.

[0526] (Each) three bits (from two octets) may indicate information whether a code point of the TCI field is associated with one or two TCI states.

[0527] Based on the MAC CE, at least one of the one or more code points of the TCI field may associate the applied DL component / part and / or UL component / part of one or two TCI states associated with one code point of the TCI field.

[0528] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL component / part of the TCI state and / or a UL component / part of the TCI state.

[0529] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with sTRP DL, sTRP UL, mTRP DL, mTRP UL, sTRP DL and sTRP UL, sTRP DL and mTRP UL, sTRP UL and mTRP DL, or mTRP DL and mTRP UL.

[0530] Preferably, in certain embodiments, a sTRP may be associated with a TCI state.

[0531] Preferably, in certain embodiments, an mTRP may be associated with more than one TCI state.

[0532] Preferably, in certain embodiments, the mTRP may be associated with two TCI states.

[0533] For example, in Fig.21 In the embodiment, Si may indicate information of sTRP / mTRP and DL / UL. For the information indicated by Si, as a combination of DL and UL, at least one DL component and UL component of a TCI state are applied or associated. For the information indicated by Ci, for a number of DL and / or UL of at least 2, the MAC-CE for the (i+1)-th code point of the TCI field may include a second octet, which includes the TCI state IDi,2. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i.

[0534] Concept 4

[0535] This concept will provide at least two octets in the MAC CE for indicating the first part of the information of several code points of the TCI field. Preferably, for the number of octets associated with the number of code points of the TCI field, the second part of the information of several code points of the TCI field can be indicated by the MSB / LSB bit. Alternatively, this concept will provide at least two bits in the MAC CE for indicating the first part of the information of one code point of the TCI field. Each of the one or more bits included in the MAC CE can be non-continuous (for example, continuous can refer to being in the same octet, or the LSB of the xth octet and the MSB of the (x+1)th octet, or the MSB of the xth octet and the LSB of the (x+1)th octet).

[0536] The first part of the information of the number of code points of the TCI field may include DL and / or UL information respectively indicating the number of code points of the TCI field.

[0537] The first part of the information of the code point of the TCI field may include DL and / or UL information indicating a first TCI state (ID) for the code point of the TCI field.

[0538] Alternatively and / or preferably, in certain embodiments, the first part of the information for the several code points of the TCI field may include information indicating one or two TCI states (IDs) respectively for the several code points of the TCI field.

[0539] Alternatively and / or preferably, in certain embodiments, the first portion of the information for the code point of the TCI field may include information indicating one or two TCI states (IDs) for the code point of the TCI field.

[0540] The second part of the information of the number of code points of the TCI field may include DL and / or UL information respectively indicating the number of code points of the TCI field.

[0541] The second part of the information of the code point of the TCI field may include information indicating DL and / or UL of a first TCI state (ID) for the code point of the TCI field.

[0542] Alternatively and / or preferably, in some embodiments, the second part of the information for the several code points of the TCI field may include information indicating one or two TCI states (IDs) respectively for the several code points of the TCI field.

[0543] Alternatively and / or preferably, in some embodiments, the second part of the information for the code point of the TCI field may include information indicating one or two TCI states (IDs) for the code point of the TCI field.

[0544] The UE may be configured with one or more DL TCI states and one or more UL TCI states in the BWP and / or in the CC. The TCI state ID of at least one of the one or more DL TCI states is the same as the TCI state ID of at least one of the one or more UL TCI states.

[0545] (Each) two bits (from two octets) may indicate the first part of the information for (each) code point of the TCI field.

[0546] Preferably, in some embodiments, (every) two bits (from two octets) may indicate the use of beam indication for one code point of the TCI field or information on the direction in which it is applied.

[0547] Preferably, in some embodiments, (each) two bits (from two octets) may indicate information whether the first TCI state ID (associated with the code point of the TCI field) is associated with one or more DL TCI states or with one or more UL TCI states.

[0548] Alternatively and / or preferably, in certain embodiments, (each) two bits (from two octets) may indicate information whether (each) code point of the TCI field is associated with one or two TCI state IDs.

[0549] Alternatively and / or preferably, in certain embodiments, (each) two bits (from two octets) may indicate information whether (each) code point of the TCI field is associated with one or two TCI states.

[0550] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0551] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, one UL TCI state, or one DL TCI state and one UL TCI state.

[0552] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with sTRP DL, sTRP UL, mTRP DL, mTRP UL, sTRP DL and sTRP UL, sTRP DL and mTRP UL, sTRP UL and mTRP DL, or mTRP DL and mTRP UL.

[0553] Preferably, in certain embodiments, a sTRP may be associated with a TCI state.

[0554] Preferably, in certain embodiments, an mTRP may be associated with more than one TCI state.

[0555] Preferably, in certain embodiments, the mTRP may be associated with two TCI states.

[0556] For example, in Fig. 22 In S0, Si may indicate information of DL and / or UL. Ci,1 will indicate information of 1 TCI state or 2 TCI states. Ci,2 will indicate information of 1 TCI state or 2 TCI states. Alternatively, if the information indicated by Si is DL+UL, then Ci,2 will indicate information of 1 TCI state or 2 TCI states. Ci,1 and / or Ci,2 may indicate information of sTRP or mTRP. Based on the information indicated by Si, the UE may determine that the (i+1)-th code point of the TCI state is associated with the TCI state from the DL TCI state pool and / or from the UL TCI state pool. Based on the information indicated by Ci,1, the UE may determine whether the mTRP is associated with the (i+1)-th code point of the TCI field for DL ​​or UL. If S0 indicates information of DL+UL, then the MAC CE may include at least two octets, which include a TCI state ID associated with the first code point of the TCI field (e.g., "000" or "00" or "0" of the TCI field). Based on the information indicated by S0 and C0,1 and C0,2, if present, the UE may determine the number of octets comprising the TCI state ID associated with the first code point of the TCI field. For information indicated by Si being DL or UL, one or two octets comprising the TCI state ID are associated with the (i+1)-th code point of the TCI field and / or C0,2 is not present. For information indicated by Si being DL+UL, one or two or three or four octets comprising the TCI state ID are associated with the (i+1)-th code point of the TCI field. If C0,1 indicates information of 1 TCI state, then (then) TCI state ID0,2 is not associated with the DL TCI state pool and / or C0,2 is associated with TCI state ID0,2. If C0,1 indicates information of 2 TCI states, then (then) TCI state ID0,2 is associated with the DL TCI state pool and / or C0,2 is associated with TCI state ID0,3. If C0,2 indicates information of 1 TCI state, then at least one octet comprising the TCI state is associated with a TCI state from the UL TCI state pool.Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​of i.

[0557] Preferably, in some embodiments, the following table can illustrate Fig. 22 MAC CE (format) mechanism.

[0558]

[0559]

[0560] The UE may be configured with one or more TCI states. Preferably, each of the one or more TCI states includes a DL component and / or a UL component.

[0561] (Each) two bits (from two octets) may indicate the first part of the information for (each) code point of the TCI field.

[0562] Preferably, in certain embodiments, (each) two bits (from two octets) may indicate information of whether the TCI state (associated with the code point of the TCI field) is associated with at least the DL component of the TCI state or whether it is associated with the UL component of the TCI state.

[0563] Alternatively and / or preferably, in certain embodiments, (each) two bits (from two octets) may indicate information whether (each) code point of the TCI field is associated with one component or two components of a TCI state.

[0564] Alternatively and / or preferably, in certain embodiments, (each) two bits (from two octets) may indicate information of one or two components of the TCI state associated with one code point of the TCI field.

[0565] Preferably, in certain embodiments, the information indicated by two bits (from two octets) may be associated with one or two TCI states (IDs) for one code point of the TCI field.

[0566] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with a DL beam indication, a UL beam indication, and / or a DL beam indication and a UL beam indication.

[0567] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with one DL TCI state, a UL component of one UL TCI state, or one DL component and UL component of one TCI state.

[0568] Based on the MAC CE, at least one of the one or more code points of the TCI field may be associated with sTRP DL, sTRP UL, mTRP DL, mTRP UL, sTRP DL and sTRP UL, or mTRP DL and mTRP UL.

[0569] Preferably, in certain embodiments, a sTRP may be associated with a TCI state.

[0570] Preferably, in certain embodiments, an mTRP may be associated with more than one TCI state.

[0571] Preferably, in certain embodiments, the mTRP may be associated with two TCI states.

[0572] For example, in Fig.23 In, Si may indicate information of DL and / or UL. For the information indicated by Si, as a combination of DL and UL, at least one DL component and a UL component of one TCI state are applied or associated. For the information indicated by Ci, for a number of DL and / or UL of at least 2, the MAC-CE for the (i+1)-th code point of the TCI field may include a second octet, which includes the TCI state IDi,2. Preferably, Ci may indicate information of an sTRP or mTRP of the (i+1)-th code point of the TCI field. Preferably, the information indicated by Si is (also) associated with the TCI state IDi,2. Preferably, for the information indicated by Si, as a combination of DL and UL, a TCI state with a TCI state IDi,2 is associated with at least one DL component and a UL component of one TCI state. Alternatively and / or preferably, Si may be discontinuous for consecutive values ​​i.

[0573] Preferably, the following table can illustrate Fig.23 MAC CE (format) mechanism.

[0574]

[0575]

[0576] Concept 5

[0577] The UE may be configured with one or more DL TCI states and one or more UL TCI states in the BWP and / or in the CC. Each of the one or more TCI states is associated with a TCI state ID.

[0578] This concept will provide at least two MAC CEs including a first MAC CE and a second MAC CE. The first MAC CE may include a TCI state ID indicating a DL TCI state and an association between a code point of the DCI and the DL TCI state. The second MAC CE may include a TCI state ID indicating a UL TCI state and an association between a code point of the DCI and the UL TCI state. When or in response to receiving a DCI (e.g., a beam indication DCI), the UE may determine whether to switch / activate / listen to one or more DL TCI states indicated in the first MAC CE and / or whether to switch / activate one or more UL TCI states indicated in the second MAC CE based on the indication / field / format of the DCI.

[0579] The first MAC CE may be associated with a logical channel identity (LCID) that is different from the LCID associated with the second MAC CE.

[0580] The first MAC CE may indicate up to 2 DL TCI states for the code point of the TCI field of the DCI. The second MAC CE may indicate up to 2 UL TCI states for the code point of the TCI field of the DCI. The DL TCI state may be associated with the activation / deactivation of the PDSCH and / or PDCCH of the UE. The UL TCI state may be associated with the activation / deactivation of the PUCCH and / or PUSCH of the UE. Each of the DL TCI states may be associated with a TRP (of the cell).

[0581] The second MAC CE instance is Fig.24 . The second MAC CE contains a serving cell ID indicating the associated serving cell for the indicated TCI state. The second MAC CE may contain a BWP ID indicating the associated BWP for the indicated TCI state. Bit C0 may indicate whether code point 0 for the DCI indicates two UL TCI state IDs. If the value of C0 is 1, then there are octets for UL TCI state ID0,2, and code point 0 is associated with UL TCI state ID0,1 and UL TCI state ID0,2. If the value of C0 is 0, then there are octets for UL TCI state ID0,2, and code point 0 is associated with UL TCI state ID0,1.

[0582] The first MAC CE instance is Fig.25. The first MAC CE contains a serving cell ID indicating the associated serving cell for the indicated TCI state. The first MAC CE may (or may not) contain a CORESET ID indicating the CORESET associated with the DL TCI state. Alternatively, the DL TCI state may be associated with all (UE-specific) CORESETs. The first MAC CE may contain a BWP ID indicating the associated BWP for the indicated TCI state. Bit C0 may indicate whether code point 0 for DCI indicates two DL TCI state IDs. If the value of C0 is 1, then there are eight bits of DL TCI state ID0,2, and code point 0 is associated with DL TCI state ID0,1 and DL TCI state ID0,2. If the value of C0 is 0, then there are eight bits of DL TCI state ID0,2, and code point 0 is associated with DL TCI state ID0,1.

[0583] The DCI may be a beam indication DCI. The DCI may indicate the dynamically switched beams of the DL and / or UL of the UE. The DCI may not contain DL allocations or UL grants. The DCI may be addressed to (or scrambled by) the CS-RNTI.

[0584] The DCI may contain a DL / UL indication field indicating that the DCI is used to indicate a joint DL / UL TCI state or a DL TCI state or a UL TCI state. Alternatively, different formats of the DCI (e.g., associated with different DCI format identifiers) may be used to indicate a joint DL / UL TCI state or a DL TCI state or a UL TCI state. In response to receiving the DCI, the UE may determine whether to switch / activate the DL and / or UL TCI states indicated by the (previously received) first and / or second MAC CE based on the type / format or value of the DL / UL indication field of the DCI. For example, the UE may switch its DL TCI state / beam (and not switch its UL TCI state / beam) in response to receiving a beam indication DCI in which the DL / UL indication field is set for "DL". The UE may switch its UL TCI state / beam (and not switch its DL TCI state / beam) in response to receiving a beam indication DCI in which the DL / UL indication field is set for "UL". The UE may switch its DL TCI state / beam in response to receiving a beam indication DCI in which the DL / UL indication field is set for "DL and UL".

[0585] Preferably, in certain embodiments, the UE may switch / monitor / activate TCI states / beams based on a code point indicated by the DCI, wherein the code point is associated with one or two TCI states via a first MAC CE (for activating a DL TCI state) and / or a second MAC CE (for activating an UL TCI state).

[0586] Concept 6

[0587] This concept is to provide a first part of information in the MAC CE to indicate the transmission direction of one (or each) TCI state ID contained in the MAC CE. The second part of the information in the MAC CE may indicate the number of TCI state IDs for one (or each) code point of the TCI field.

[0588] The first part of the information may be one bit of one (or each) TCI State ID.

[0589] The first part of the information may indicate whether the associated TCI state ID is for DL ​​or UL.

[0590] The second part of the information may be two (or more) bits for one (or each) code point of the TCI field.

[0591] The number of TCI state IDs for one (or each) code point of the TCI field can be 1 to 4.

[0592] The number of TCI state IDs for one (or each) code point of the TCI field can be 0 to 4.

[0593] Fig.26 For example. The D / Ux field may correspond to the first portion of the information. The Nx field may correspond to the second portion of the information. N0 may be 0 (e.g., the number of TCI state IDs associated with code point 0 is 1 (TCI state ID0,1)). N1 may be 3 (e.g., the number of TCI state IDs associated with code point 1 is 4). N2 may be 0. D / U0 ​​may be 0 (e.g., TCI state ID0,1 is for DL). D / U1 may be 0. D / U2 may be 0. D / U3 may be 1 (e.g., UL). D / U4 may be 1 (e.g., UL). D / U5 may be 1 (e.g., UL).

[0594] Fig. 27 To illustrate an example of the association between TCI state ID and TCI code point in DCI for sTRP. The submitted F1 indicates whether TCI state ID 1 is DL or UL, and the F2 field indicates whether TCI state ID 2 is DL or UL. The F3 field indicates whether the TCI code point includes TCI state ID 1 and TCI state ID 2.

[0595] Fig.28 To illustrate an example of the association between the TCI state ID and the TCI code point in the DCI for the mTRP mechanism. The F4, F6, and F7 fields indicate the same functionality as the F1, F2, and F3 fields, respectively. The submitted F5 indicates whether the TCI code point is an sTRP or an mTRP. If the F5 field indicates an sTRP, then TCI state IDs 1 and 2, and TCI state IDs 3 and 4 are associated with different TCI code points. If the F5 field indicates an mTRP, then TCI state IDs 1, 2, 3, and 4 are associated with the same TCI code point.

[0596] Any combination of the above concepts can be combined or formed into new embodiments. The following embodiments can be used to at least (but not limited to) solve the above-mentioned problems.

[0597] refer to Fig.29 , utilizing this and other concepts, systems and methods of the present invention, a method 1000 for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states with one or more code points of a TCI field (step 1002), wherein the message includes a number of octets or a number of bits for indicating directional information of a beam indication (step 1004); and upon receiving a DCI having a code point of a TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels (step 1006).

[0598] In various embodiments, the beam may be replaced by or equivalent to a QCL type D relationship and / or a spatial filter.

[0599] In various embodiments, the direction information of the beam indication is DL or UL, or DL ​​and UL.

[0600] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the UE, the device 300 includes program code 312 stored in the memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) receive a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets or a number of bits for indicating directional information of beam indication; and (iii) upon receiving a DCI with a code point of the TCI field indicating DL and UL, update the beams used for multiple DL UE-specific signals and channels, and update the beams used for multiple DL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0601] refer to Fig.30 , utilizing this and other concepts, systems and methods of the present invention, a method 1010 for a network in a wireless communication system includes: transmitting a message for associating one or more TCI states with one or more code points of a TCI field (step 1012), wherein the message includes a number of octets or a number of bits for indicating directional information of a beam indication (step 1014); and transmitting a DCI having code points of a TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels (step 1016).

[0602] In various embodiments, the beam may be replaced by or equivalent to a QCL type D relationship and / or a spatial filter.

[0603] In various embodiments, the direction information of the beam indication is DL or UL, or DL ​​and UL.

[0604] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the NW, the device 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) transmit a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets and a number of bits for indicating directional information of beam indication, and (iii) transmit a DCI having code points of the TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0605] refer to Fig.31 , utilizing this and other concepts, systems and methods of the present invention, a method 1020 for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states with one or more code points of a TCI field (step 1022), wherein the message includes a number of octets or a number of bits of first (partial) information indicating a direction of a beam indication (step 1024); and upon receiving a DCI having a code point of a TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels (step 1026).

[0606] In various embodiments, one or more MSBs or LSBs of one or more octets comprising the TCI status ID indicate the second (partial) information of the direction of the beam indication.

[0607] In various embodiments, the first information of the direction of the beam indication is DL or UL.

[0608] In various embodiments, the second information of the direction of the beam indication is one TCI state or two TCI states, and / or for two TCI states, one TCI state is associated with DL and one TCI state is associated with UL.

[0609] In various embodiments, the first information indicating the direction of the beam is one TCI state or two TCI states.

[0610] In various embodiments, the second information indicating the direction of the beam is DL or UL.

[0611] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the UE, the device 300 includes program code 312 stored in the memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) receive a message for associating one or more TCI states with one or more code points of the TCI field; (ii) wherein the message includes a number of octets or a number of bits of first (partial) information for indicating the direction of the beam indication; and (iii) upon receiving a DCI with a code point of the TCI field indicating DL and UL, update the beams for multiple DL UE-specific signals and channels and update the beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0612] refer to Fig.32 , utilizing this and other concepts, systems and methods of the present invention, a method 1030 for a network in a wireless communication system includes transmitting a message for associating one or more TCI states with one or more code points of a TCI field (step 1032), wherein the message includes a number of octets or a number of bits for indicating directional information of a beam indication (step 1034); and transmitting a DCI having code points of a TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels (step 1036).

[0613] In various embodiments, one or more MSBs or LSBs of one or more octets comprising the TCI status ID indicate the second (partial) information of the direction of the beam indication.

[0614] In various embodiments, the first information of the direction of the beam indication is DL or UL.

[0615] In various embodiments, the second information of the direction of the beam indication is one TCI state or two TCI states, and / or for two TCI states, one TCI state is associated with DL and one TCI state is associated with UL.

[0616] In various embodiments, the first information indicating the direction of the beam is one TCI state or two TCI states.

[0617] In various embodiments, the second information indicating the direction of the beam is DL or UL.

[0618] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the NW, the device 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) transmit a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets and a number of bits for indicating directional information of beam indication, and (iii) transmit a DCI having code points of the TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0619] refer to Fig.33 , utilizing this and other concepts, systems and methods of the present invention, a method 1040 for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states with one or more code points of a TCI field (step 1042), wherein the message includes several octets or several bits of information indicating the direction of a beam indication and / or information of an sTRP or mTRP (step 1044); and upon receiving a DCI having a code point of a TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels (step 1046).

[0620] In various embodiments, the information of the direction indicated by the beam and / or the information of the sTRP or mTRP is 1 DL or 1UL or 1 DL and 1 UL, 2 DL or 2 UL, or 1 DL and 2 UL, or 2 DL and 1UL, or 2 DL and 2 UL.

[0621] In various embodiments, based on information of the direction of the beam indication and / or information of the sTRP or mTRP, the UE determines the number of TCI state IDs associated with a code point of the TCI field.

[0622] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the UE, the device 300 includes program code 312 stored in the memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) receive a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets or a number of bits of information indicating the direction of the beam indication and / or sTRP or mTRP, and (iii) upon receiving a DCI with a code point of the TCI field indicating DL and UL, update the beams for multiple DL UE-specific signals and channels and update the beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0623] refer to Fig.34 , utilizing this and other concepts, systems and methods of the present invention, a method 1050 for a network in a wireless communication system includes: transmitting a message for associating one or more TCI states with one or more code points of a TCI field (step 1052), wherein the message includes several octets or several bits of information indicating the direction of a beam indication and / or information of an sTRP or mTRP (step 1054); and transmitting a DCI having code points of a TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels (step 1056).

[0624] In various embodiments, the information of the direction indicated by the beam and / or the information of the sTRP or mTRP is 1 DL or 1 UL or 1 DL and 1 UL, 2 DL or 2 UL, or 1 DL and 2 UL, or 2 DL and 1 UL, or 2 DL and 2 UL.

[0625] In various embodiments, based on information of the direction of the beam indication and / or information of the sTRP or mTRP, the UE determines the number of TCI state IDs associated with a code point of the TCI field.

[0626] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the NW, the device 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) transmit a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets or a number of bits of information indicating the direction of the beam indication and / or sTRP or mTRP, and (iii) transmit a DCI with code points of the TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0627] refer to Fig.35 , utilizing this and other concepts, systems and methods of the present invention, a method 1060 for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states with one or more code points of a TCI field (step 1062), wherein the message includes a number of octets or a number of bits of (first) information indicating the direction of a beam indication (step 1064); and upon receiving a DCI having a code point of a TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels (step 1066).

[0628] In various embodiments, one or more MSBs or LSBs of one or more octets comprising the TCI state ID indicate the second (partial) information of the sTRP or mTRP.

[0629] In various embodiments, the first information of the direction indicated by the beam is DL, UL or DL+UL.

[0630] In various embodiments, for the first information of DL+UL indicating a code point of the TCI field, the message includes two MSBs or LSBs of two octets, the two octets include the TCI status ID, and the two MSBs or LSBs of the octets indicate the second information of sTRP or mTRP of DL and UL, respectively.

[0631] In various embodiments, for first information of DL+UL indicating a code point of a TCI field, the message includes an MSB or LSB of an eight-bit byte, the one eight-bit byte includes a TCI status ID, and the MSB or LSB of the eight-bit byte indicates second information of sTRP or mTRP for both DL and UL.

[0632] In various embodiments (eg, before the UE receives the DCI), the UE receives one or more DL channels or signals based on the first beam, and / or the UE transmits one or more UL channels or signals based on the second beam.

[0633] In various embodiments (eg, after / after the UE receives the DCI), the UE receives one or more DL channels or signals based on the third beam, and / or the UE transmits one or more UL channels or signals based on the fourth beam.

[0634] In various embodiments, the code point of the TCI field indicates information of the third beam and the fourth beam.

[0635] In various embodiments, if the first beam is the same as the third beam, the UE does not update the beam and / or keeps using the first beam.

[0636] In various embodiments, if the first beam is different from the third beam, the UE changes or updates the beam from the first beam to the third beam.

[0637] In various embodiments, if the second beam is the same as the fourth beam, the UE does not update the beam and / or keeps using the second beam.

[0638] In various embodiments, if the second beam is different from the fourth beam, the UE changes or updates the beam from the second beam to the fourth beam.

[0639] In various embodiments, based on the information of the beam from the DCI, the UE does not receive a common DL signal or channel.

[0640] In various embodiments, based on the information of the beam from the DCI, the UE does not transmit a common UL signal or channel.

[0641] In various embodiments, the DCI is associated with a first CORESET having a first CORESETPoolIndex.

[0642] In various embodiments, the message may provide information of CORESETPoolIndex.

[0643] In various embodiments, based on the information of CORESETPoolIndex, the message is associated with the first CORESETPoolIndex or the second CORESETPoolIndex.

[0644] In various embodiments, the message is a MAC CE for activating the TCI state (for the CORESET associated with the information of CORESETPoolIndex in the message).

[0645] In various embodiments, it is not allowed to configure CORESETPoolIndex information and RepetitionSchemeConfig information at the same time.

[0646] In various embodiments, a DL may be associated with a TCI state from a DL TCI state pool.

[0647] In various embodiments, one UL may be associated with one TCI state from the UL TCI state pool.

[0648] In various embodiments, one DL may be associated with a DL component of one TCI state.

[0649] In various embodiments, one UL may be associated with the UL component of one TCI state.

[0650] In various embodiments, one DL+one UL may be associated with one TCI state from the DL TCI state pool and one TCI state from the UL TCI state pool.

[0651] In various embodiments, one DL+one UL may be associated with the DL component and the UL component of one TCI state.

[0652] In various embodiments, one TCI state may include a DL component and / or a UL component and / or a common component (eg, a TCI state ID).

[0653] In various embodiments, two DLs may be associated with two TCI states from a DL TCI state pool.

[0654] In various embodiments, two ULs may be associated with two TCI states from the UL TCI state pool.

[0655] In various embodiments, two DLs may be associated with a DL component of one TCI state and a DL component of another TCI state.

[0656] In various embodiments, two ULs may be associated with a UL component of one TCI state and a UL component of another TCI state.

[0657] Return to reference Figure 3 and 4, in one or more embodiments from the perspective of the UE, the apparatus 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 may execute the program code 312 to: (i) receive a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message comprises a number of octets or a number of bits of (first) information for indicating the direction of a beam indication, and (iii) upon receiving a DCI having a code point of the TCI field indicating DL and UL, update the beams for a plurality of DL UE-specific signals and channels and update the beams for a plurality of UL UE-specific signals and channels. In addition, the CPU 308 may execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise herein.

[0658] refer to Fig.36 , utilizing this and other concepts, systems and methods of the present invention, a method 1070 for a network in a wireless communication system includes: transmitting a message for associating one or more TCI states with one or more code points of a TCI field (step 1072), wherein the message includes a number of octets or a number of bits of (first) information indicating the direction of a beam indication (step 1074); and transmitting a DCI having code points of the TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels (step 1076).

[0659] In various embodiments, one or more MSBs or LSBs of one or more octets comprising the TCI state ID indicate the second (partial) information of the sTRP or mTRP.

[0660] In various embodiments, the first information of the direction indicated by the beam is DL, UL or DL+UL.

[0661] In various embodiments, for the first information of DL+UL indicating a code point of the TCI field, the message includes two MSBs or LSBs of two octets, the two octets include the TCI status ID, and the two MSBs or LSBs of the octets indicate the second information of sTRP or mTRP of DL and UL, respectively.

[0662] In various embodiments, for first information of DL+UL indicating a code point of a TCI field, the message includes an MSB or LSB of an eight-bit byte, the one eight-bit byte includes a TCI status ID, and the MSB or LSB of the eight-bit byte indicates second information of sTRP or mTRP for both DL and UL.

[0663] In various embodiments (eg, before the UE receives the DCI), the UE receives one or more DL channels or signals based on the first beam, and / or the UE transmits one or more UL channels or signals based on the second beam.

[0664] In various embodiments (eg, after / after the UE receives the DCI), the UE receives one or more DL channels or signals based on the third beam, and / or the UE transmits one or more UL channels or signals based on the fourth beam.

[0665] In various embodiments, the code point of the TCI field indicates information of the third beam and the fourth beam.

[0666] In various embodiments, if the first beam is the same as the third beam, the UE does not update the beam and / or keeps using the first beam.

[0667] In various embodiments, if the first beam is different from the third beam, the UE changes or updates the beam from the first beam to the third beam.

[0668] In various embodiments, if the second beam is the same as the fourth beam, the UE does not update the beam and / or keeps using the second beam.

[0669] In various embodiments, if the second beam is different from the fourth beam, the UE changes or updates the beam from the second beam to the fourth beam.

[0670] In various embodiments, based on the information of the beam from the DCI, the UE does not receive a common DL signal or channel.

[0671] In various embodiments, based on the information of the beam from the DCI, the UE does not transmit a common UL signal or channel.

[0672] In various embodiments, the DCI is associated with a first CORESET having a first CORESETPoolIndex.

[0673] In various embodiments, the message may provide information of CORESETPoolIndex.

[0674] In various embodiments, based on the information of CORESETPoolIndex, the message is associated with the first CORESETPoolIndex or the second CORESETPoolIndex.

[0675] In various embodiments, the message is a MAC CE for activating the TCI state (for the CORESET associated with the information of CORESETPoolIndex in the message).

[0676] In various embodiments, it is not allowed to configure CORESETPoolIndex information and RepetitionSchemeConfig information at the same time.

[0677] In various embodiments, a DL may be associated with a TCI state from a DL TCI state pool.

[0678] In various embodiments, one UL may be associated with one TCI state from the UL TCI state pool.

[0679] In various embodiments, one DL may be associated with a DL component of one TCI state.

[0680] In various embodiments, one UL may be associated with the UL component of one TCI state.

[0681] In various embodiments, one DL+one UL may be associated with one TCI state from the DL TCI state pool and one TCI state from the UL TCI state pool.

[0682] In various embodiments, one DL+one UL may be associated with the DL component and the UL component of one TCI state.

[0683] In various embodiments, one TCI state may include a DL component and / or a UL component and / or a common component (eg, a TCI state ID).

[0684] In various embodiments, two DLs may be associated with two TCI states from a DL TCI state pool.

[0685] In various embodiments, two ULs may be associated with two TCI states from the UL TCI state pool.

[0686] In various embodiments, two DLs may be associated with a DL component of one TCI state and a DL component of another TCI state.

[0687] In various embodiments, two ULs may be associated with a UL component of one TCI state and a UL component of another TCI state.

[0688] Return to reference Figure 3 and 4In one or more embodiments from the perspective of the NW, the device 300 includes a program code 312 stored in a memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) transmit a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a number of octets or a number of bits of (first) information for indicating the direction of the beam indication; and (iii) transmit a DCI with a code point of the TCI field indicating DL and UL for indicating an update of the beam for multiple DL UE-specific signals and channels, and indicating an update of the beam for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0689] refer to Fig.37 , utilizing this and other concepts, systems and methods of the present invention, a method 1080 for a network in a wireless communication system includes: transmitting a message for associating one or more TCI states with one or more code points of a TCI field (step 1082), wherein the message includes a first number of bits for indicating first information corresponding to the one or more TCI states and a second number of bits for indicating second information corresponding to the one or more code points of the TCI field (step 1084), wherein the first information indicates DL or UL for one TCI state, and the second information indicates the number of TCI states for one code point of the TCI field (step 1086); and transmitting DCI with code points of the TCI field indicating DL and UL to indicate updating beams for multiple DL UE-specific signals and channels, and indicating updating beams for multiple UL UE-specific signals and channels (step 1088).

[0690] In various embodiments, the first information for a TCI state is in the same octet as the one TCI state.

[0691] In various embodiments, the UE is configured with a separate TCI state, and / or the UE is configured with a first TCI state pool and a second TCI state pool, wherein the first TCI state pool includes TCI states corresponding to DL channels and / or signals, and the second TCI state pool includes TCI states corresponding to UL channels and / or signals.

[0692] In various embodiments, for first information of DL as one TCI state, the TCI state is associated with a first TCI state pool, and / or for second information of UL as one TCI state, the TCI state is associated with a second TCI state pool.

[0693] In various embodiments, the second number of bits is in one or two particular octets, and / or the second number of bits associated with a code point is not in the same octet of one or more TCI states associated with the one TCI code point.

[0694] In various embodiments, the number of TCI states is one or two.

[0695] In various embodiments, the number of TCI states is one, two, three, or four.

[0696] In various embodiments, the message includes a third number of bits for indicating third information corresponding to one or more code points of the TCI field.

[0697] In various embodiments, the third information indicates a single TRP or multiple TRPs, and / or the third information indicates whether there are at least two TCI states for DL ​​in one code point of the TCI field or whether there are two TCI states for UL in one code point of the TCI field.

[0698] Return to reference Figure 3 and 4 In one or more embodiments from the perspective of the NW, the device 300 includes program code 312 stored in a memory 310 of the transmitter. The CPU 308 can execute the program code 312 to: (i) transmit a message for associating one or more TCI states with one or more code points of the TCI field, (ii) wherein the message includes a first number of bits for indicating first information corresponding to the one or more TCI states and a second number of bits for indicating second information corresponding to one or more code points of the TCI field, (iii) wherein the first information indicates DL or UL for one TCI state, and the second information indicates the number of TCI states for one code point of the TCI field, and (iv) transmit a DCI with a code point of the TCI field indicating DL and UL for indicating an update of beams for multiple DL UE-specific signals and channels, and indicating an update of beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 can execute the program code 312 to perform all described actions, steps, and methods described above, below, or otherwise described herein.

[0699] refer to Fig.38, utilizing this and other concepts, systems and methods of the present invention, a method 1090 for a UE in a wireless communication system includes: receiving a MAC CE for associating at least one TCI state with at least one code point of a TCI field in a DCI (step 1092), wherein the MAC CE includes at least: a first octet, which includes a first TCI state ID field associated with a first TCI state and a first field indicating that the first TCI state is used for DL ​​or UL (step 1094), a second octet, which includes a second TCI state ID field associated with a second TCI state and a second field indicating that the second TCI state is used for DL ​​or UL (step 1096); and a third octet, which includes a third field for the UE to determine whether the first TCI state and the second TCI state are associated with the same code point or different code points of the TCI field (step 1098), wherein the method further includes: receiving a DCI with a specific code point of the TCI field (step 1100); and determining one or more TCI states associated with the specific code point based on the MAC CE (step 1102).

[0700] In various embodiments, the first field, the second field, and the third field are 1-bit fields.

[0701] In various embodiments, the third octet precedes any one of the first octet and the second octet in the MAC CE including the TCI Status ID field. The octet index of the third octet is less than any one of the octet indexes of the first octet and the second octet.

[0702] In various embodiments, the first octet and the second octet are consecutive.

[0703] In various embodiments, when the UE determines based on the third field that the first TCI state and the second TCI state are associated with the same code point of the TCI field, one of the first field and the second field indicates DL, and the other of the first field and the second field indicates UL.

[0704] In various embodiments, in response to a specific code point in the DCI, the UE updates at least one beam for receiving multiple DL UE-specific signals and channels based on one or more TCI states, and / or the UE updates at least one beam for transmitting multiple UL UE-specific signals and channels based on one or more TCI states.

[0705] In various embodiments, the MAC CE further includes a fourth octet comprising a third TCI state ID field associated with a third TCI state and a fourth field indicating whether the third TCI state is used for DL ​​or UL, and a fifth field for the UE to determine whether at least the first TCI state, the second TCI state, and the third TCI state are associated with the same code point or different code points of the TCI field.

[0706] In various embodiments, when the UE determines based on the fifth field that the first TCI state, the second TCI state, and the third TCI state are associated with the same code point of the TCI field, the first TCI state, the second TCI state, and the third TCI state are associated with different TRPs.

[0707] In various embodiments, the MAC CE further includes a fifth octet, which includes a fourth TCI state ID field associated with the fourth TCI state and a sixth field indicating whether the fourth TCI state is used for DL ​​or UL, and a seventh field for the UE to determine whether the third TCI state and the fourth TCI state are associated with the same code point or different code points of the TCI field, wherein the seventh field is included in the third octet.

[0708] In various embodiments, the UE determines whether the first TCI state, the second TCI state, the third TCI state, and the fourth TCI state are associated with the same code point or different code points of the TCI field based on the fifth field.

[0709] In various embodiments, when the MAC CE further includes an eighth field in the third octet, wherein when the eighth field is not associated with any TCI state in the MAC CE, the UE ignores the eighth field.

[0710] Return to reference Figure 3 and 4In one or more embodiments from the perspective of a UE, the apparatus 300 includes a program code 312 stored in a memory 310 of a transmitter. The CPU 308 may execute the program code 312 to: (i) receive a MAC CE for associating at least one TCI state with at least one code point of a TCI field in a DCI, wherein the MAC CE includes at least: (ii) a first octet including a first TCI state ID field associated with a first TCI state and a first field indicating whether the first TCI state is for DL ​​or UL, (iii) a second octet including a second TCI state ID field associated with a second TCI state and a second field indicating whether the second TCI state is for DL ​​or UL, (iv) a third octet including a third field for the UE to determine whether the first TCI state and the second TCI state are associated with the same code point or different code points of the TCI field, and the CPU 308 may further execute the program code 312 to: (v) receive a DCI having a specific code point of the TCI field, and (vi) determine one or more TCI states associated with the specific code point based on the MAC CE. Furthermore, CPU 308 may execute program code 312 to perform all described actions, steps, and methods described above, below, or otherwise herein.

[0711] refer to Fig.39 , utilizing this and other concepts, systems and methods of the present invention, a method 1110 for a UE in a wireless communication system includes: receiving a message for associating one or more TCI states with one or more code points of a TCI field (step 1112), wherein the message includes a first number of bits for indicating first information corresponding to the one or more TCI states and a second number of bits for indicating second information corresponding to the one or more code points of the TCI field (step 1114), and wherein the first information at least indicates whether one TCI state is used for DL ​​or UL, and the second information at least indicates the number of TCI states for one code point of the TCI field (step 1116); and upon receiving DCI having code points of the TCI field indicating DL and UL, updating beams for multiple DL UE-specific signals and channels and updating beams for multiple UL UE-specific signals and channels (step 1118).

[0712] In various embodiments, the first information for a TCI state is in the same octet as the one TCI state.

[0713] In various embodiments, the UE is configured with a separate TCI state, and / or the UE is configured with a first TCI state pool and a second TCI state pool, wherein the first TCI state pool includes TCI states corresponding to DL channels and / or signals, and the second TCI state pool includes TCI states corresponding to UL channels and / or signals.

[0714] In various embodiments, for the first information indicating one TCI state for DL, the one TCI state is associated with a first TCI state pool, and / or for the first information indicating one TCI state for UL, the one TCI state is associated with a second TCI state pool.

[0715] In various embodiments, the second number of bits is in one or two particular octets, and / or the second number of bits associated with a code point is not in the same octet of one or more TCI states associated with the one TCI code point.

[0716] In various embodiments, the number of TCI states is one of one or two.

[0717] In various embodiments, the number of TCI states is one of one, two, three, or four.

[0718] In various embodiments, the message includes a third number of bits for indicating third information corresponding to one or more code points of the TCI field.

[0719] In various embodiments, the third information indicates a single TRP or multiple TRPs, and / or the third information indicates whether at least two TCI states for DL ​​correspond in one code point of the TCI field or whether two TCI states for UL correspond in one code point of the TCI field.

[0720] Return to reference Figure 3 and 4In one or more embodiments from the perspective of a UE, the apparatus 300 includes program code 312 stored in a memory 310 of a transmitter. The CPU 308 may execute the program code 312 to: (i) receive a message for associating one or more TCI states with one or more code points of a TCI field, (ii) wherein the message includes a first number of bits for indicating first information corresponding to the one or more TCI states and a second number of bits for indicating second information corresponding to one or more code points of the TCI field, and (iii) wherein the first information indicates at least whether one TCI state is used for DL ​​or UL, and the second information indicates the number of TCI states for one code point of the TCI field, and (iv) upon receiving a DCI having a code point of the TCI field indicating at least DL and UL, update beams for multiple DL UE-specific signals and channels and update beams for multiple UL UE-specific signals and channels. In addition, the CPU 308 may execute the program code 312 to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

[0721] Return to reference Figure 3 and 4 In one or more embodiments from the perspective of a communication device, device 300 includes program code 312 stored in a transmitter's memory 310. CPU 308 may execute program code 312 to perform all described actions, steps, and methods described above, below, or otherwise herein.

[0722] In various embodiments, the communication device is a UE device.

[0723] In various embodiments, the communication device is a network device or node.

[0724] Any combination of the above concepts or teachings can be combined or formed into new embodiments. The disclosed details and embodiments can be used to at least (but not limited to) solve the problems mentioned above and herein.

[0725] It should be noted that any of the methods, alternatives, steps, examples and embodiments presented herein may be applied independently, individually and / or in combination with multiple methods, alternatives, steps, examples and embodiments.

[0726] The above has described various aspects of the present disclosure. It should be understood that the teachings herein can be implemented in a wide variety of forms, and any specific structure, function, or both disclosed herein are only representative. Based on the teachings herein, it should be understood by those skilled in the art that the aspects disclosed herein can be implemented independently of any other aspects, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement a device or practice method. In addition, other structures, functions, or structures and functions other than one or more of the aspects described herein or different from one or more of the aspects described herein can be used to implement this device or practice this method. As an example of some of the above concepts, in some aspects, parallel channels can be established based on pulse repetition frequency. In some aspects, parallel channels can be established based on pulse position or offset. In some aspects, parallel channels can be established based on time hopping sequences. In some aspects, parallel channels can be established based on pulse repetition frequency, pulse position or offset, and time hopping sequences.

[0727] Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0728] Those of ordinary skill in the art will further appreciate that the various illustrative logical blocks, modules, processors, components, circuits, and algorithm steps described in conjunction with the various aspects disclosed herein may be implemented as electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two, which may be designed using source decoding or some other technique), and various forms of programs or design code with instructions (which may be referred to herein as "software" or "software modules" for convenience), or a combination of the two. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those of ordinary skill in the art may implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0729] In addition, the various illustrative logical blocks, modules, and circuits described in conjunction with the various aspects disclosed herein may be implemented within or performed by an integrated circuit ("IC"), an access terminal, or an access point. An IC may include a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, electrical components, optical components, mechanical components, or any combination thereof designed to perform the functions described herein, and may execute code or instructions residing within the IC, outside the IC, or both. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0730] It should be understood that any specific order or hierarchy of steps in any disclosed process is an example of an exemplary method. It should be understood that based on design preferences, the specific order or hierarchy of steps in a process can be rearranged while remaining within the scope of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy presented.

[0731] The steps of the method or algorithm described in conjunction with the various aspects disclosed herein can be implemented directly with hardware, with a software module executed by a processor, or with a combination of the two. Software modules (e.g., including executable instructions and related data) and other data may reside in a data memory, such as a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of computer-readable storage medium known in the art. An example storage medium may be coupled to a machine such as a computer / processor (for convenience, the machine may be referred to as a "processor" in this article) so that the processor can read information (e.g., code) from the storage medium and write information to the storage medium. An example storage medium may be integrated with a processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user device. In an alternative, the processor and the storage medium may reside in a user device as discrete components. In addition, in some aspects, any suitable computer program product may include a computer-readable medium, which includes a code related to one or more aspects of the present disclosure. In some aspects, a computer program product may include packaging materials.

[0732] Although the present invention has been described in conjunction with various aspects and examples, it will be appreciated that the present invention is capable of further modifications. This application is intended to cover any changes, uses or adaptations of the present invention, which generally follow the principles of the present invention and include such deviations from the present disclosure, which are within the scope of known and customary practice in the technical field to which the present invention belongs.

Claims

1. A method for a user equipment in a wireless communication system, characterized in that: include: Receiving a medium access control control element for associating at least one transmission configuration indicator state with at least one code point of a transmission configuration indicator field in downlink control information, wherein the medium access control control element comprises at least: a first octet comprising a first transmit configuration indicator state identity field associated with a first transmit configuration indicator state and a first field indicating whether the first transmit configuration indicator state is for downlink or uplink; a second octet comprising a second transmit configuration indicator state identity field associated with a second transmit configuration indicator state and a second field indicating whether the second transmit configuration indicator state is for downlink or uplink; and a third octet comprising a third field for the user equipment to determine whether the first transmission configuration indicator state and the second transmission configuration indicator state are associated with the same code point or different code points of the transmission configuration indicator field; receiving the downlink control information having a specific code point of the transmission configuration indicator field; and One or more transmission configuration indicator states associated with the particular codepoint are determined based on the medium access control control element.

2. The method according to claim 1, characterized in that The first field, the second field, and the third field are 1-bit fields.

3. The method according to claim 1, characterized in that: The third octet is in the media access control control element and the third octet precedes any one of the first octet and the second octet including a transmission configuration indicator state identity field, and / or the octet index of the third octet is less than any one of the octet index of the first octet and the second octet.

4. The method according to claim 1, characterized in that: The first octet and the second octet are consecutive.

5. The method according to claim 1, characterized in that When the user equipment determines, based on the third field, that the first transmission configuration indicator state and the second transmission configuration indicator state are associated with the same code point of the transmission configuration indicator field, one of the first field and the second field indicates a downlink, and the other of the first field and the second field indicates an uplink.

6. The method according to claim 1, characterized in that In response to the specific code point in the downlink control information, the user equipment updates at least one beam for receiving multiple downlink user equipment-specific signals and channels based on the one or more transmission configuration indicator states, and / or the user equipment updates at least one beam for transmitting multiple uplink user equipment-specific signals and channels based on the one or more transmission configuration indicator states.

7. The method according to claim 1, characterized in that The media access control element further comprises: a fourth octet comprising a third transmission configuration indicator state identity field associated with a third transmission configuration indicator state and a fourth field indicating whether the third transmission configuration indicator state is for downlink or uplink; and A fifth field is used by the user equipment to determine whether at least the first transmission configuration indicator state, the second transmission configuration indicator state and the third transmission configuration indicator state are associated with the same code point or different code points of the transmission configuration indicator field.

8. The method according to claim 7, characterized in that When the user equipment determines, based on the fifth field, that the first transmission configuration indicator state, the second transmission configuration indicator state, and the third transmission configuration indicator state are associated with the same code point of the transmission configuration indicator field, the first transmission configuration indicator state, the second transmission configuration indicator state, and the third transmission configuration indicator state are associated with different transmission / reception points.

9. The method according to claim 7, characterized in that: The media access control element further comprises: a fifth octet comprising a fourth transmit configuration indicator state identity field associated with a fourth transmit configuration indicator state and a sixth field indicating whether the fourth transmit configuration indicator state is for downlink or uplink; and A seventh field is used by the user equipment to determine whether the third transmission configuration indicator state and the fourth transmission configuration indicator state are associated with the same code point or different code points of the transmission configuration indicator field, wherein the seventh field is included in the third octet.

10. The method according to claim 9, characterized in that The user equipment determines whether the first transmission configuration indicator state, the second transmission configuration indicator state, the third transmission configuration indicator state, and the fourth transmission configuration indicator state are associated with the same code point or different code points of the transmission configuration indicator field based on the fifth field.

11. The method according to claim 1, characterized in that: When the media access control control element further comprises an eighth field in the third octet, wherein when the eighth field is not associated with any transmission configuration indicator state in the media access control control element, the user equipment ignores the eighth field.

12. A method for a user equipment in a wireless communication system, characterized in that: include: receiving a message for associating one or more transmission configuration indicator states with one or more code points of a transmission configuration indicator field, wherein the message comprises a first number of bits for indicating first information corresponding to the one or more transmission configuration indicator states and a second number of bits for indicating second information corresponding to the one or more code points of the transmission configuration indicator field, and wherein the first information indicates at least one transmission configuration indicator state for downlink or uplink, and the second information indicates at least the number of transmission configuration indicator states for one code point of the transmission configuration indicator field; as well as Upon receiving downlink control information having a code point indicating a transmission configuration indicator field for downlink and uplink, beams for a plurality of downlink user equipment-specific signals and channels are updated and the beams for a plurality of uplink user equipment-specific signals and channels are updated.

13. The method according to claim 12, characterized in that Said first information for said one transmit configuration indicator state is in the same octet as said one transmit configuration indicator state.

14. The method according to claim 12, characterized in that The user equipment is configured with a separate transmission configuration indicator state, and / or The user equipment is configured with a first transmission configuration indicator state pool and a second transmission configuration indicator state pool, wherein the first transmission configuration indicator state pool includes transmission configuration indicator states corresponding to downlink channels and / or signals, and the second transmission configuration indicator state pool includes transmission configuration indicator states corresponding to uplink channels and / or signals.

15. The method according to claim 14, characterized in that The first information indicates that the one transmission configuration indicator state is used for downlink, the transmission configuration indicator state is associated with the first transmission configuration indicator state pool, and / or For the first information indicating that the one transmission configuration indicator state is used for uplink, the transmission configuration indicator state is associated with the second transmission configuration indicator state pool.

16. The method according to claim 12, characterized in that The second number of bits is in one or two specific octets and / or the second number of bits associated with a code point is not in the same octet of one or more transmit configuration indicator states associated with the one transmit configuration indicator code point.

17. The method according to claim 12, characterized in that The number of transmission configuration indicator states is one of one or two.

18. The method according to claim 12, characterized in that The number of transmission configuration indicator states is one of one, two, three or four.

19. The method according to claim 12, characterized in that The message includes a third number of bits for indicating third information corresponding to the one or more code points of the transmission configuration indicator field.

20. The method according to claim 19, characterized in that The third information indicates a single transmission / reception point or multiple transmission / reception points, and / or the third information indicates whether at least two transmission configuration indicator states for the downlink correspond in one code point of the transmission configuration indicator field, or whether two transmission configuration indicator states for the uplink correspond in one code point of the transmission configuration indicator field.

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