Systems, methods, and apparatus for unified transmit configuration indicator status indication for multiple downlink control information multiple transmit receive point application scenarios in wireless communications

Abstract

Systems, methods, and apparatus are discussed for unified transmit configuration indication identity (TCI) status indication for multiple transmit receive point (mTRP) application scenarios for multiple downlink control information (mDCI). Aspects of generating TCI status indications for mDCI mTRP using a TCI status list, Medium Access Control Control Elements (MAC-CEs), and / or Downlink Control Information (DCI) are discussed. Determination of TCI status at a user equipment (UE) for physical downlink control channel (PDCCH) reception and / or physical downlink shared channel (PDSCH) reception is discussed. Application of a unified TCI state for other types of downlink (DL) and / or uplink (UL) channels is also discussed.

Description

Technical Field

[0001] The present application generally relates to wireless communication systems, including wireless communication systems using TCI status indication methods. Background Art

[0002] Wireless mobile communication technologies use various standards and protocols to send data between base stations and wireless communication devices. For example, wireless communication system standards and protocols may include the Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) (e.g., 4G), 3GPP New Radio (NR) (e.g., 5G), and the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard for wireless local area networks (WLANs) (commonly referred to within industry organizations as WLANs). ).

[0003] As envisioned by 3GPP, different wireless communication system standards and protocols may use various radio access networks (RANs) to communicate between base stations of the RAN (which may also sometimes be referred to as RAN nodes, network nodes, or simply nodes) and wireless communication devices referred to as user equipment (UE). 3GPP RANs may include, for example, Global System for Mobile Communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE) RAN (GERAN), Universal Terrestrial Radio Access Network (UTRAN), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), and / or Next Generation Radio Access Network (NG-RAN).

[0004] Each RAN may use one or more radio access technologies (RATs) to perform communications between base stations and UEs. For example, GERAN implements GSM and / or EDGE RAT, UTRAN implements Universal Mobile Telecommunications System (UMTS) RAT or other 3GPP RAT, E-UTRAN implements LTE RAT (sometimes referred to as LTE), and NG-RAN implements NR RAT (sometimes referred to as 5G RAT, 5GNR RAT, or NR in this document). In some deployments, E-UTRAN may also implement NR RAT. In some deployments, NG-RAN may also implement LTE RAT.

[0005] The base stations used by the RAN may correspond to the RAN. An example of an E-UTRAN base station is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (also commonly denoted as an evolved Node B, enhanced Node B, eNodeB, or eNB). An example of an NG-RAN base station is a Next Generation Node B (sometimes also referred to as a g-Node B or gNB).

[0006] The RAN provides its communication services with external entities through its connection to the Core Network (CN). For example, E-UTRAN may utilize the Evolved Packet Core (EPC) while NG-RAN may utilize the 5G Core Network (5GC).

[0007] The frequency bands of 5G NR can be divided into two or more different frequency ranges. For example, frequency range 1 (FR1) may include frequency bands operating at frequencies below 6 gigahertz (GHz), some of which are available for use by previous standards and can potentially be expanded to cover new spectrum products from 410 megahertz (MHz) to 7125MHz. Frequency range 2 (FR2) may include frequency bands from 24.25GHz to 52.6GHz. It should be noted that in some systems, FR2 may also include frequency bands from 52.6GHz to 71GHz (or higher). The frequency bands in the millimeter wave (mmWave) range of FR2 may have smaller coverage than the frequency bands in FR1 but potentially higher available bandwidth. Technicians will recognize that these frequency ranges provided by way of example may vary over time or region. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] To easily identify the discussion of any particular element or action, the most significant digit(s) in a reference number refers to the drawing number that first introduces the element.

[0009] Figure 1 A diagram illustrating the extension of the unified TCI framework for mTRP using more than two UL / UL TCI states according to one embodiment.

[0010] Figure 2A The first state list set and the second state list set distinguished by the use of CORESETPoolIndex are illustrated.

[0011] Figure 2B A MAC-CE for activating the DL or UL TCI state for CORESETPoolIndex is illustrated.

[0012] Figure 3 A diagram showing the use of a single 3-bit TCI field to indicate a unified TCI state pair for two TRPs is illustrated.

[0013] Figure 4 A diagram showing the use of two TCI fields in DCI format 1_1 / 1_2 is illustrated.

[0014] Figure 5 A DCI format showing a TRP-ID field of a DCI format indicating a TRP ID to which TCI field information is applied is illustrated.

[0015] Figure 6 Examples according to two alternative schemes for PDSCH reception within the default QCL window are provided.

[0016] Figure 7 A method of a RAN according to an embodiment of the present invention is illustrated.

[0017] Figure 8 A method of a UE according to an embodiment of this document is illustrated.

[0018] Fig. 9 A method of a UE according to an embodiment of this document is illustrated.

[0019] Fig.10 A method of a UE according to an embodiment of this document is illustrated.

[0020] Fig.11 A method of a UE according to an embodiment of this document is illustrated.

[0021] Fig.12 A method of a UE according to an embodiment of this document is illustrated.

[0022] Fig.13 An example architecture of a wireless communication system according to embodiments disclosed herein is illustrated.

[0023] Fig.14 A system for performing signaling between a wireless device and a network device according to embodiments disclosed herein is illustrated. DETAILED DESCRIPTION

[0024] Various embodiments are described with respect to UE. However, reference to UE is provided for illustrative purposes only. The example embodiments may be used with any electronic component that can establish a connection with a network and is configured with hardware, software, and / or firmware for exchanging information and data with the network. Therefore, UE as described herein is used to represent any suitable electronic component.

[0025] A few years after the initial NR deployment, the Transmit Configuration Indicator (TCI) status framework in Release 15 became unnecessarily flexible, which resulted in significant signaling overhead. A unified TCI framework was introduced in Release 17, which facilitates streamlined multi-beam operation targeting FR2. Because Release 17 focuses on single transmit receive point (TRP) (sTRP) application scenarios, an extension of the unified TCI framework focusing on multiple TRP (mTRP) application scenarios is beneficial.

[0026] There is a need for an enhancement of the Release 17 unified TCI framework for multiple-input multiple-output (MIMO) evolution for downlink (DL) and uplink (UL). This enhancement of the Release 17 unified TCI framework for mTRP application scenarios may specify indication of multiple DL and UL TCI states focused on mTRP application scenarios.

[0027] The Release 17 TCI framework provides optimized support for scenarios where all UL and DL signals / channels are received / transmitted using the same beam or TCI. It also provides optimized support for scenarios where all DL signals are received in one beam and all UL signals are transmitted in one beam. Within these aspects of the Release 17 unified TCI framework, support for mTRP reception may not be possible.

[0028] Figure 1 Diagram 100 illustrates extending the unified TCI framework for mTRP using more than two UL / UL TCI states according to one embodiment.

[0029] The potential problems of the unified TCI framework extension for multiple downlink control information (mDCI) mTRP application scenarios are: 1) How to provide multiple TCI states associated with mTRP to the UE (e.g., four TCI states 001 / 002 / 003 / 004 with TRP#1 and TRP#2, respectively, such as Figure 1 ), and 2) how to select multiple DL or UL TCI states for different DL / UL channel reception / transmission, considering the time before and after timeDurationForQCL starting from the symbol of DL downlink control information (DCI).

[0030] According to certain aspects of the present disclosure, multiple methods may be considered for unified TCI status indication for mDCI mTRP application scenarios.

[0031] First, the UE may be configured with up to four TCI state lists, as follows: a first DL TCI state list and a first UL TCI state list for a first TRP, and a second DL TCI state list and a second UL TCI state list for the first TRP. A control resource set (CORESET) pool index (CORESETPoolIndex) value of "0" or "1" may be assigned to each DL TCI state list and UL TCI state list.

[0032] Figure 2A206. A first TCI state list set 202 and a second TCI state list set 204 are illustrated, distinguished by their corresponding CORESETPoolIndex 206. The first TCI state list set 202 may be for a first TRP 208 and include a first DL TCI state list 210 and a first UL TCI state list 212. As illustrated, the first DL TCI state list 210 and the first UL TCI state list 212 correspond to using a value of "0" as the applicable CORESETPoolIndex 206.

[0033] The second TCI state list set 204 may be for a second TRP 214 and include a second DL TCI state list 216 and a second UL TCI state list 218. As illustrated, the second DL TCI state list 216 and the second UL TCI state list 218 correspond to using a value of "1" as the applicable CORESETPoolIndex 206.

[0034] Then, once the UE is configured with up to four TCI state lists, a new medium access control element (MAC-CE) may be introduced to activate the DL or UL TCI state for CORESETPoolIndex. Figure 2B A MAC-CE 220 for activating a DL or UL TCI state for CORESETPoolIndex is illustrated.

[0035] A new MAC-CE is identified by a Medium Access Control (MAC) subheader with a dedicated Logical Channel Identifier (ID) (LCID). It has a variable size and consists of the following fields:

[0036] Serving cell ID field 222, DL bandwidth part (BWP) ID field 224 and UL BWPID field 226, which respectively indicate the identity of the serving cell, DL BWP and UL BWP to which the MAC-CE is applied;

[0037] CORESETPoolIndex field 228, which indicates the value of CORESETPoolIndex;

[0038] ·P i Field 230, which indicates whether each TCI code point has multiple TCI states or a single TCI state;

[0039] D / U fields 232, each indicating whether the TCI state ID in the same octet is for a downlink or uplink TCI state for the TCI state list with the indicated TRP ID; and

[0040] • TCI State ID field 234, which indicates the TCI state index provided by Radio Resource Control (RRC) signaling for the corresponding TCI state list associated with the indicated TRP ID.

[0041] Alternatively, the CORESETPoolIndex value can be implicitly determined based on the control resource set (CORESET) of the MAC-CE physical downlink shared channel (PDSCH) detected.With this design, CORESETPoolIndex does not need to be carried in the MAC-CE context.

[0042] Then, according to certain aspects of the present disclosure, multiple methods may be considered for unified TCI status indication for mDCI mTRP application scenarios using DCI format.

[0043] In a first alternative, the existing TCI field in DCI format 1_1 / 1_2 (with or without DL allocation) associated with one of the CORESETPoolIndex values ​​is used to indicate the joint / DL / UL TCI state corresponding to the same CORESETPoolIndex value.

[0044] In a second alternative, the existing TCI field in any DCI format 1_1 / 1_2 (with or without DL allocation) is used to indicate the joint / DL / UL TCI status corresponding to two CORESETPoolIndex values.

[0045] Note that this second alternative assumes tight coordination between the two TRPs in the mDCI mTRP application scenario, so that a single TRP maintains unified TCI status updates based on beam measurement reports from the UE for the DL beams associated with the two TRPs.

[0046] In a first option for the second alternative, a single 3-bit TCI field is used to indicate a unified TCI state pair for both TRPs. Figure 3 A diagram 300 is illustrated showing the use of a single 3-bit TCI field to indicate a unified TCI state pair for two TRPs. The gNB associates 302 two pairs of DL / UL unified TCI states, each pair of DL / UL unified TCI states for a TRP, with a single TCI code point in the DCI format.

[0047] This option is feasible assuming that the gNB appropriately configures the TCI pairs for the two TRPs (e.g., based on group-based beam reporting from the UE).

[0048] In a second option for the second alternative, two TCI fields may be included in DCI format 1_1 / 1_2. Figure 4 A diagram 400 showing the use of two TCI fields in DCI format 1_1 / 1_2 is illustrated.

[0049] In the first mode for the second option using data scheduling (in Figure 4 In the embodiment of the present invention, an additional 3-bit TCI field 402 may be newly added to the Release 17 DCI format 1_1 / 1_2 with data scheduling in the DCI format 1_1 / 1_2 with data scheduling. Then, the first 3-bit field 404 is used to indicate the TCI code point associated with the TRP with TRP ID=0, and the additional 3-bit TCI field 402 is used to indicate the TCI code point associated with the TRP with TRP ID=1.

[0050] In the second mode for the second option (in Figure 4 In the embodiment of the present invention, in the embodiment of the present invention, an additional 3-bit TCI field 406 may be created by reusing 408 the reserved field 410 of DCI 1_1 / 1_2 without data scheduling. Then, the first 3-bit field 412 is used to indicate the TCI code point associated with the TRP with TRP ID=0, and the additional 3-bit TCI field 406 is used to indicate the TCI code point associated with the TRP with TRP ID=1.

[0051] Under the second option (eg, in the first mode or the second mode of the second option), two pairs of <dl tci状态、ul tci状态>, where the first pair <dl tci状态、ul tci状态>is applied to the first TRP and the second pair is applied to the second TRP.

[0052] In a third option for the second alternative, a new field may be introduced to indicate the TRP ID to which the TCI field information in the same DCI format applies. Figure 5 A DCI format 500 is illustrated showing a TRP-ID field 502 of the DCI format indicating a TRP ID to which TCI field information 504 is applied. The TRP-ID field 502 may be any ID capable of identifying a TRP corresponding to the use of the TCI field 504 information.

[0053] In a fourth option for the second alternative, a two-step signaling method may be used. In a first step, the UE may be configured with M DL TCI state pairs to be associated with different TCI code point values ​​through MAC-CE signaling, wherein at least one DL TCI state pair consists of one TCI state for TRP#1 and another TCI state for TRP#2. Then, in a second step, a 3-bit TCI field in the DCI format is used to select a DL TCI state pair from the M DL TCI state pairs (e.g., where M≤8) for one or two TRPs.

[0054] According to certain aspects of the present disclosure, if a CORESET or search space is explicitly configured to follow a unified joint / DL TCI state, the UE applies the indicated unified joint / DL TCI state corresponding to the CORESETPoolIndex value received on the physical downlink control channel (PDCCH) for the CORESET and associated search space set. Otherwise, for a given CORESET, a separate TCI state may be activated by a MAC-CE that is different from the indicated unified TCI state.

[0055] According to certain aspects of the present disclosure, multiple methods can be considered to determine the TCI state of PDSCH reception within the default QCL window for the mDCI mTRP application scenario. Here, a window with a duration timeDurationForQCL starting from the symbol of DL DCI is called the "default QCL window".

[0056] In a first alternative, the UE applies the same value of CORESETPoolIndex to the DL TCI state with the lowest ID of the CORESET with the monitored search space in the most recent timeslot, or applies the same value of CORESETPoolIndex to the TCI state of the search space set. In some designs, the first alternative may be applied when both of the indicated TCI states are associated with a physical cell identifier (ID) (PCI) that is different from the serving cell (in the inter-cell mTRP application scenario).

[0057] In a second alternative, the UE applies the same value of CORESETPoolIndex to the unified DLTCI state of the CORESET, or applies the same value of CORESETPoolIndex to the unified TCI state of the search space set.

[0058] In each of the first and second alternatives, the UE applies the indicated unified joint / DL TCI state corresponding to the CORESETPoolIndex value for PDSCH reception outside the default QCL window.

[0059] Figure 6 Examples are provided according to two alternatives for PDSCH reception within the default QCL window 602. Assume that DCI format 604 is detected in a PDCCH monitoring occasion associated with a CORESET configured not to follow a unified TCI state. TCI state #0 is configured for the search space of DCI format 604 or the CORESET of DCI format 604.

[0060] In addition, it is assumed that CORESETPoolIndex=1 corresponding to TRP#1 indicates unified TCI state #2.

[0061] Under the first alternative, the UE assumes that the TCI state of the CORESET in the most recent timeslot for monitoring (TCI state #0) is applied for PDSCH reception in the default QCL window 602 .

[0062] Under the second alternative, the UE assumes a unified TCI state of CORESETPoolIndex=1 that applies during the default QCL window 602 .

[0063] According to certain aspects of the present disclosure, the unified TCI state for the same value of CORESETPoolIndex may additionally be applied to the following DL / UL channel sets in the mDCI mTRP application scenario:

[0064] Aperiodic channel state information reference signal (CSI-RS) resource sets triggered by DCI associated with the same value of the CORESETPoolIndex value;

[0065] The Physical Uplink Shared Channel (PUSCH) scheduled by the DCI associated with the same value of the CORESETPoolIndex value;

[0066] A configured granted physical uplink shared channel (CG-PUSCH) activated by a DCI associated with the same value of the CORESETPoolIndex value;

[0067] A Physical Uplink Control Channel (PUCCH) that carries the Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) bits corresponding to the DCI associated with the same value of the CORESETPoolIndex value;

[0068] The set of Semi-Persistent Sounding Reference Signal (SRS) (SP-SRS) sources activated by the DCI associated with the same value of the CORESETPoolIndex value; and

[0069] Aperiodic SRS triggered by a DCI associated with the same value of the CORESETPoolIndex value

[0070] (A-SRS) Resource Set

[0071] For other signals / channels that are not explicitly associated with a CORESETPoolIndex value, multiple options may be available. In a first option, an indicator identification information element (IE) may be introduced as part of the RRC configuration to associate the signal / channel with a CORESETPoolIndex value. In a second option, the CORESETPoolIndex value of the TRP index may be provided directly for the signal / channel in order to determine a unified TCI state.

[0072] Figure 7 A method 700 of a RAN according to embodiments herein is illustrated. The method 700 includes transmitting 702 a plurality of TCI state lists to a UE.

[0073] The method 700 also includes transmitting 704 a first MAC-CE to the UE, the first MAC-CE indicating a first plurality of TCI states for a first TRP of the RAN from the plurality of TCI state lists.

[0074] The method 700 also includes transmitting 706 to the UE a second MAC-CE indicating a second plurality of TCI states for a second TRP of the RAN from the plurality of TCI state lists.

[0075] The method 700 also includes transmitting 708 to the UE a first DCI including a first TCI field having a first TCI code point value identifying one or more TCI states of a first plurality of TCI states for the UE to use to communicate with the first TRP.

[0076] The method 700 also includes communicating 710 with the UE using the first TRP and the second TRP after transmitting the first DCI.

[0077] In some embodiments of method 700, the first TRP is associated with a first CORESET pool corresponding to a first CORESET pool index value, and the first MAC-CE includes a first CORESET pool index field indicating the first CORESET pool index value.

[0078] In some embodiments of method 700, the first TRP is associated with a first CORESET pool corresponding to a first CORESET pool index value, and the first MAC-CE is transmitted via a PDSCH scheduled by a PDCCH transmitted in a CORESET of the first CORESET pool.

[0079] In some embodiments of method 700, the first MAC-CE includes a bit field corresponding to the first TCI field, the bit field having a value identifying a number of a first plurality of TCI states associated with a first TCI code point of the first TCI field.

[0080] In some embodiments, method 700 also includes transmitting to the UE a second DCI including a second TCI field having a second TCI code point value identifying one or more TCI states of a second plurality of TCI states for the UE to use to communicate with a second TRP, wherein communication with the UE using the first TRP and the second TRP occurs after transmitting the second DCI.

[0081] In some embodiments of method 700, the first TCI code point value also identifies one or more TCI states of a second plurality of TCI states for the UE to use to communicate with the second TRP.

[0082] In some embodiments of method 700, the first DCI also includes a second TCI field having a second TCI code point value identifying one or more TCI states of a second plurality of TCI states for the UE to use to communicate with the second TRP.

[0083] In some embodiments of method 700, the first DCI also includes a bit field having a value identifying that the first TCI code point value is associated with the first TRP.

[0084] Figure 8 A method 800 of a UE according to an embodiment of the present invention is illustrated. The method 800 includes receiving (802) a plurality of TCI state lists from a network.

[0085] The method 800 also includes receiving 804 a first MAC-CE from the network, the first MAC-CE indicating a first plurality of TCI states for a first TRP of the network from the plurality of TCI state lists.

[0086] The method 800 also includes receiving 806 a second MAC-CE from the network, the second MAC-CE indicating a second plurality of TCI states for a second TRP of the network from the plurality of TCI state lists.

[0087] The method 800 also includes receiving 808 from the network a first DCI including a first TCI field having a first TCI code point value identifying one or more TCI states of a first plurality of TCI states for the UE to use to communicate with the first TRP.

[0088] The method 800 also includes communicating 810 with the network using the first TRP and the second TRP after receiving the first DCI.

[0089] In some embodiments of method 800, the first TRP is associated with a first CORESET pool corresponding to a first CORESET pool index value, the first MAC-CE includes a first CORESET pool index field indicating the first CORESET pool index value, and method 800 also includes identifying that the first MAC-CE is for the first TRP based on an indication of the first CORESET pool index value in the first CORESET pool index field of the first MAC-CE.

[0090] In some embodiments of method 800, the first TRP is associated with a first CORESET pool corresponding to a first CORESET pool index value, the first MAC-CE is received via a PDSCH scheduled by a PDCCH received in a CORESET of the first CORESET pool, and method 800 also includes identifying that the first MAC-CE is for the first TRP based on receiving the PDCCH in the CORESET of the first CORESET pool.

[0091] In some embodiments of method 800, the first MAC-CE includes a bit field corresponding to the first TCI field, the bit field having a value identifying a number of a first plurality of TCI states associated with a first TCI code point of the first TCI field.

[0092] In some embodiments, method 800 also includes receiving a second DCI from the network including a second TCI field having a second TCI code point value identifying one or more TCI states of a second plurality of TCI states for the UE to use to communicate with a second TRP, wherein communication with the network using the first TRP and the second TRP occurs after receiving the second DCI.

[0093] In some embodiments of method 800, the first TCI code point value also identifies one or more TCI states of a second plurality of TCI states for the UE to use to communicate with the second TRP.

[0094] In some embodiments of method 800, the first DCI also includes a second TCI field having a second TCI code point value identifying one or more TCI states of a second plurality of TCI states used by the UE to communicate with the second TRP.

[0095] In some embodiments of method 800, the first DCI also includes a bit field having a value identifying that the first TCI code point is associated with the first TRP.

[0096] Fig. 9 A method 900 of a UE according to an embodiment of the present invention is illustrated. The method 900 includes receiving 902 a MAC-CE from a network, the MAC-CE indicating a plurality of TCI states of a TRP of the network associated with a CORESET pool corresponding to a CORESET pool index value, wherein the MAC-CE includes a first bit corresponding to a TCI code point value, the first bit identifying the number of the plurality of TCI states identified by the TCI code point value.

[0097] The method 900 also includes receiving 904 from the network a DCI including a first TCI bit field having a TCI code point value.

[0098] The method 900 also includes communicating 906 with the network using the TRP after receiving the first DCI.

[0099] In some embodiments of method 900, the MAC-CE indicates a CORESET pool index value, and method 900 further includes identifying that the MAC-CE is for a TRP based on the indication of the CORESET pool index value in the MAC-CE.

[0100] In some embodiments of method 900, the MAC-CE is received via a PDSCH scheduled by a PDCCH received in a CORESET of the CORESET pool, and method 900 further includes identifying that the MAC-CE is for a TRP based on receiving the PDCCH in a CORESET of the CORESET pool.

[0101] In some embodiments of the method 900, the MAC-CE further includes a second bit corresponding to a TCI state in the plurality of TCI states, the second bit identifying whether the TCI state is for UL or DL.

[0102] Fig.10 A method 1000 of a UE according to an embodiment of the present invention is illustrated. The method 1000 includes determining 1002 whether a CORESET for monitoring a PDCCH has been configured to use a unified TCI state indicated by a first MAC-CE.

[0103] The method 1000 also includes, if the CORESET has been configured to use a unified TCI state, monitoring 1004 the PDCCH using a beam indicated by the unified TCI state.

[0104] The method 1000 also includes monitoring 1006 the PDCCH using the individual TCI state indicated by the second MAC-CE if the CORESET has not been configured to use a unified TCI state.

[0105] In some embodiments of method 1000, the UE determines whether the CORESET is configured to use a unified TCI state by identifying whether the first MAC-CE indicates a CORSET pool index value of a CORESET pool including the CORESET.

[0106] Fig.11 A method 1100 of a UE according to embodiments herein is illustrated. The method 1100 includes receiving 1102 from a network a DCI in a CORESET on a first beam corresponding to a DL TCI state of the CORESET.

[0107] The method 1100 also includes performing 1104 data reception of a PDSCH corresponding to the DCI during a default QCL window corresponding to the DCI using a first beam corresponding to the first DL TCI state.

[0108] The method 1100 also includes performing 1106 data reception of the PDSCH outside the default QCL window using a second beam corresponding to the unified TCI state indicated by the DCI.

[0109] In some embodiments of method 1100, the DCI triggers the transmission of the CSI-RS resource set, and method 1100 also includes transmitting the CSI-RS resource set to the network on a second beam corresponding to a unified TCI state indicated by the DCI.

[0110] In some embodiments of method 1100, the DCI schedules the PUSCH, and method 1100 further includes transmitting the PUSCH to the network on a second beam corresponding to a unified TCI state indicated by the DCI.

[0111] In some embodiments of method 1100, the DCI activates the CG-PUSCH, and method 1100 further includes transmitting the CG-PUSCH to the network on a second beam corresponding to a unified TCI state indicated by the DCI.

[0112] In some embodiments, method 1100 also includes transmitting a PUCCH to the network on a second beam corresponding to a unified TCI state indicated by the DCI, the PUCCH including one or more HARQ-ACK bits corresponding to the DCI.

[0113] In some embodiments of method 1100, the DCI activates the SP-SRS resource set, and method 1100 further includes transmitting the SP-SRS resource set to the network on a second beam corresponding to a unified TCI state indicated by the DCI.

[0114] In some embodiments of method 1100, the DCI activates the A-SRS resource set, and method 1100 further includes transmitting the A-SRS resource set to the network on a second beam corresponding to a unified TCI state indicated by the DCI.

[0115] In some embodiments, method 1100 also includes: receiving an IE from the network indicating the use of a unified TCI state to associate a signal type with a CORESET pool, wherein the DCI triggers the use of the signal type; and communicating with the network using the signal type using a second beam corresponding to the unified TCI state indicated by the DCI.

[0116] In some embodiments, method 1100 also includes: receiving an indication from the network to associate a signal type on a TRP of the network to a CORESET pool using a unified TCI state, the indication including a CORESET pool index value of the CORESET pool using the unified TCI state, wherein the DCI triggers use of the signal type with the TRP; and communicating with the TRP using the signal type using a second beam corresponding to the unified TCI state indicated by the DCI.

[0117] Fig.12 A method 1200 of a UE according to embodiments herein is illustrated. The method 1200 includes receiving 1202 a first DCI from a network indicating a unified TCI state used by a CORESET pool.

[0118] The method 1200 also includes receiving 1202 from the network a second DCI in the CORESET on the first beam corresponding to a DL TCI state of the CORESET, wherein the CORESET is a member of a pool of CORESETs using a unified TCI state indicated by the first DCI.

[0119] The method 1200 also includes performing 1206 data reception of a PDSCH corresponding to the second DCI during a default QCL window corresponding to the second DCI using a second beam corresponding to the unified TCI state indicated by the first DCI.

[0120] In some embodiments of method 1200, the second DCI triggers the transmission of the CSI-RS resource set, and method 1200 also includes transmitting the CSI-RS resource set to the network on a second beam corresponding to the unified TCI state indicated by the first DCI.

[0121] In some embodiments of method 1200, the second DCI schedules a PUSCH, and method 1200 further includes transmitting the PUSCH to the network on a second beam corresponding to a unified TCI state indicated by the first DCI.

[0122] In some embodiments of method 1200, the second DCI activates the CG-PUSCH, and method 1200 also includes transmitting the CG-PUSCH to the network on a second beam corresponding to the unified TCI state indicated by the first DCI.

[0123] In some embodiments, method 1200 also includes transmitting a PUCCH to the network on a second beam corresponding to the unified TCI state indicated by the first DCI, the PUCCH including one or more HARQ-ACK bits corresponding to the second DCI.

[0124] In some embodiments, method 1200 also includes transmitting a PUCCH to the network on a second beam corresponding to the unified TCI state indicated by the first DCI, the PUCCH including one or more HARQ-ACK bits corresponding to the second DCI.

[0125] In some embodiments of method 1200, the second DCI activates the A-SRS resource set, and method 1200 further includes transmitting the A-SRS resource set to the network on a second beam corresponding to the unified TCI state indicated by the first DCI.

[0126] In some embodiments, method 1200 also includes: receiving an IE from the network indicating the use of a unified TCI state to associate a signal type with a CORESET pool, wherein a second DCI triggers the use of the signal type; and communicating with the network using the signal type using a second beam corresponding to the unified TCI state indicated by the first DCI.

[0127] In some embodiments, method 1200 also includes: receiving an indication from the network to associate a signal type on a TRP of the network to a CORESET pool using a unified TCI state, the indication including a CORESET pool index value of the CORESET pool using the unified TCI state, wherein a second DCI triggers use of the signal type with the TRP; and communicating with the TRP using the signal type using a second beam corresponding to the unified TCI state indicated by the first DCI.

[0128] Fig.13 An exemplary architecture of a wireless communication system 1300 according to an embodiment disclosed herein is illustrated. The description provided below is for an exemplary wireless communication system 1300 operating in conjunction with the LTE system standard and / or the 5G or NR system standard provided in the 3GPP technical specifications.

[0129] like Fig.13 As shown, the wireless communication system 1300 includes UE 1302 and UE 1304 (although any number of UEs may be used). In this example, UE 1302 and UE 1304 are illustrated as smart phones (e.g., handheld touch screen mobile computing devices capable of connecting to one or more cellular networks), but may also include any mobile or non-mobile computing device configured for wireless communication.

[0130] UE 1302 and UE 1304 may be configured to be communicatively coupled to RAN 1306. In an embodiment, RAN 1306 may be NG-RAN, E-UTRAN, etc. UE 1302 and UE 1304 utilize connections (or channels) (shown as connection 1308 and connection 1310, respectively) with RAN 1306, where each connection (or channel) includes a physical communication interface. RAN 1306 may include one or more base stations (such as base station 1312 and base station 1314) that implement connection 1308 and connection 1310.

[0131] In this example, connection 1308 and connection 1310 are air interfaces that enable such communicative coupling and may conform to the RAT used by RAN 1306, such as, for example, LTE and / or NR.

[0132] In some embodiments, UE 1302 and UE 1304 may also directly exchange communication data via side link interface 1316. UE 1304 is shown as being configured to access an access point (shown as AP 1318) via connection 1320. By way of example, connection 1320 may include a local wireless connection, such as a connection conforming to any IEEE 802.11 protocol, wherein AP 1318 may include In this example, AP 1318 can connect to another network (eg, the Internet) without going through CN 1324.

[0133] In an embodiment, UE 1302 and UE 1304 may be configured to communicate with each other or with base station 1312 and / or base station 1314 over a multi-carrier communication channel using orthogonal frequency division multiplexing (OFDM) communication signals according to various communication techniques, such as but not limited to orthogonal frequency division multiple access (OFDMA) communication techniques (e.g., for downlink communication) or single carrier frequency division multiple access (SC-FDMA) communication techniques (e.g., for uplink and ProSe or sidelink communication), although the scope of the embodiment is not limited in this respect. OFDM signals may include multiple orthogonal subcarriers.

[0134] In some embodiments, all or part of base station 1312 or base station 1314 may be implemented as one or more software entities running on a server computer as part of a virtual network. In addition, or in other embodiments, base station 1312 or base station 1314 may be configured to communicate with each other via interface 1322. In an embodiment where wireless communication system 1300 is an LTE system (e.g., when CN 1324 is an EPC), interface 1322 may be an X2 interface. The X2 interface may be defined between two or more base stations (e.g., two or more eNBs, etc.) connected to the EPC and / or between two eNBs connected to the EPC. In an embodiment where wireless communication system 1300 is an NR system (e.g., when CN 1324 is a 5GC), interface 1322 may be an Xn interface. The Xn interface is defined between two or more base stations (e.g., two or more gNBs, etc.) connected to a 5GC, between a base station 1312 (e.g., a gNB) and an eNB connected to a 5GC, and / or between two eNBs connected to a 5GC (e.g., CN 1324).

[0135] RAN 1306 is shown as being communicatively coupled to CN 1324. CN 1324 may include one or more network elements 1326 configured to provide various data and telecommunication services to customers / subscribers (e.g., UE 1302 and users of UE 1304) connected to CN 1324 via RAN 1306. The components of CN 1324 may be implemented in one physical device or separate physical devices including components for reading and executing instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium).

[0136] In an embodiment, CN 1324 may be an EPC, and RAN 1306 may be connected to CN 1324 via an S1 interface 1328. In an embodiment, S1 interface 1328 may be divided into two parts: an S1 user plane (S1-U) interface, which carries traffic data between base station 1312 or base station 1314 and a serving gateway (S-GW); and an S1-MME interface, which is a signaling interface between base station 1312 or base station 1314 and a mobility management entity (MME).

[0137] In an embodiment, CN 1324 may be a 5GC, and RAN 1306 may be connected to CN 1324 via an NG interface 1328. In an embodiment, NG interface 1328 may be divided into two parts: an NG user plane (NG-U) interface, which carries traffic data between base station 1312 or base station 1314 and a user plane function (UPF); and an S1 control plane (NG-C) interface, which is a signaling interface between base station 1312 or base station 1314 and an access and mobility management function (AMF).

[0138] In general, the application server 1330 may be an element that provides applications (e.g., packet-switched data services) that use Internet Protocol (IP) bearer resources with the CN 1324. The application server 1330 may also be configured to support one or more communication services (e.g., VoIP sessions, group communication sessions, etc.) for the UE 1302 and the UE 1304 via the CN 1324. The application server 1330 may communicate with the CN 1324 via the IP communication interface 1332.

[0139] Fig.14 A system 1400 for performing signaling 1434 between a wireless device 1402 and a network device 1418 according to an embodiment disclosed herein is illustrated. The system 1400 may be part of a wireless communication system as described herein. The wireless device 1402 may be, for example, a UE of a wireless communication system. The network device 1418 may be, for example, a base station (e.g., an eNB or a gNB) of a wireless communication system.

[0140] The wireless device 1402 may include one or more processors 1404. The processor 1404 may execute instructions to cause various operations of the wireless device 1402 to be performed, as described herein. The processor 1404 may include one or more baseband processors implemented using, for example, a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.

[0141] The wireless device 1402 may include a memory 1406. The memory 1406 may be a non-transitory computer-readable storage medium that stores instructions 1408 (which may include, for example, instructions executed by the processor 1404). The instructions 1408 may also be referred to as program code or a computer program. The memory 1406 may also store data used by the processor 1404 and results computed by the processor.

[0142] The wireless device 1402 may include one or more transceivers 1410, which may include radio frequency (RF) transmitter and / or receiver circuitry that uses an antenna 1412 of the wireless device 1402 to facilitate signaling (e.g., signaling 1434) transmitted or received by the wireless device 1402 with other devices (e.g., network device 1418) according to a corresponding RAT.

[0143] The wireless device 1402 may include one or more antennas 1412 (e.g., one, two, four, or more). For embodiments with multiple antennas 1412, the wireless device 1402 may exploit the spatial diversity of such multiple antennas 1412 to transmit and / or receive multiple different data streams on the same time-frequency resources. This behavior may be referred to as, for example, multiple-input multiple-output (MIMO) behavior (referring to the multiple antennas used at each of the transmitting device and the receiving device to implement this aspect). MIMO transmissions by the wireless device 1402 may be implemented based on precoding (or digital beamforming) applied at the wireless device 1402, which multiplexes the data streams across the antennas 1412 based on known or assumed channel characteristics, so that each data stream is received with appropriate signal strength relative to the other streams and at a desired location in the spatial domain (e.g., the location of the receiver associated with the data stream). Certain embodiments may use a single-user MIMO (SU-MIMO) approach (where data streams are all directed to a single receiver) and / or a multi-user MIMO (MU-MIMO) approach (where separate data streams may be directed to separate (different) receivers in different locations in the spatial domain).

[0144] In certain embodiments with multiple antennas, the wireless device 1402 may implement analog beamforming techniques whereby the phases of signals transmitted by the antennas 1412 are relatively adjusted so that the (joint) transmissions of the antennas 1412 can be directed (this is sometimes referred to as beam steering).

[0145] The wireless device 1402 may include one or more interfaces 1414. The interfaces 1414 may be used to provide input to or output from the wireless device 1402. For example, a wireless device 1402 that is a UE may include an interface 1414, such as a microphone, a speaker, a touch screen, buttons, etc., to allow a user of the UE to provide input and / or output to the UE. Other interfaces of such a UE may be composed of transmitters, receivers, and other circuits that allow communication between the UE and other devices (e.g., in addition to the transceiver 1410 / antenna 1412 described above), and may be configured according to known protocols (e.g., etc.) to perform the operation.

[0146] The wireless device 1402 may include a TCI status module 1416. The TCI status module 1416 may be implemented via hardware, software, or a combination thereof. For example, the TCI status module 1416 may be implemented as a processor, circuit, and / or instructions 1408 stored in the memory 1406 and executed by the processor 1404. In some examples, the TCI status module 1416 may be integrated within the processor 1404 and / or the transceiver 1410. For example, the TCI status module 1416 may be implemented by a combination of software components (e.g., executed by a DSP or general purpose processor) and hardware components (e.g., logic gates and circuits) within the processor 1404 or the transceiver 1410.

[0147] The TCI status module 1416 may be used in various aspects of the present disclosure, for example, Figures 1 to 12 The TCI status module 1416 is configured to use the TCI status indication for the mDCI mTRP application scenario, for example, in the manner described herein.

[0148] The network device 1418 may include one or more processors 1420. The processor 1420 may execute instructions to cause various operations of the network device 1418 to be performed, as described herein. The processor 1420 may include one or more baseband processors implemented using, for example, a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.

[0149] The network device 1418 may include a memory 1422. The memory 1422 may be a non-transitory computer-readable storage medium that stores instructions 1424 (which may include, for example, instructions executed by the processor 1420). The instructions 1424 may also be referred to as program code or a computer program. The memory 1422 may also store data used by the processor 1420 and results calculated by the processor.

[0150] The network device 1418 may include one or more transceivers 1426, which may include RF transmitter and / or receiver circuits that use an antenna 1428 of the network device 1418 to facilitate signaling (e.g., signaling 1434) transmitted or received by the network device 1418 with other devices (e.g., wireless device 1402) according to a corresponding RAT.

[0151] The network device 1418 may include one or more antennas 1428 (e.g., one, two, four, or more). In embodiments with multiple antennas 1428, the network device 1418 may perform MIMO, digital beamforming, analog beamforming, beam steering, etc. as described.

[0152] The network device 1418 may include one or more interfaces 1430. The interface 1430 may be used to provide input to or output from the network device 1418. For example, the network device 1418 as a base station may include an interface 1430 composed of a transmitter, a receiver, and other circuits (e.g., in addition to the transceiver 1426 / antenna 1428 described above), which enables the base station to communicate with other equipment in the core network and / or enables the base station to communicate with an external network, computer, database, etc., in order to achieve the purpose of performing operations, management, and maintenance of the base station or other equipment operably connected to the base station.

[0153] The network device 1418 may include a TCI status module 1432. The TCI status module 1432 may be implemented via hardware, software, or a combination thereof. For example, the TCI status module 1432 may be implemented as a processor, circuit, and / or instructions 1424 stored in the memory 1422 and executed by the processor 1420. In some examples, the TCI status module 1432 may be integrated within the processor 1420 and / or the transceiver 1426. For example, the TCI status module 1432 may be implemented by a combination of software components (e.g., executed by a DSP or general purpose processor) and hardware components (e.g., logic gates and circuits) within the processor 1420 or the transceiver 1426.

[0154] The TCI status module 1432 may be used in various aspects of the present disclosure, for example, Figures 1 to 12 The TCI status module 1432 is configured to generate a TCI status indication for the mDCI mTRP application scenario, for example, in the manner described herein.

[0155] Embodiments contemplated herein include an apparatus comprising means for performing one or more elements of one or more of methods 800, 900, 1000, 1100, and / or 1200. The apparatus may be, for example, an apparatus that is a UE (such as wireless device 1402 that is a UE, as described herein).

[0156] Embodiments contemplated herein include one or more non-transitory computer-readable media including instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform one or more elements of one or more of methods 800, 900, 1000, 1100, and / or 1200. The non-transitory computer-readable medium may be, for example, a memory of a UE (such as memory 1406 of wireless device 1402 as a UE, as described herein).

[0157] Embodiments contemplated herein include an apparatus comprising logical components, modules, or circuits for performing one or more elements of one or more of methods 800, 900, 1000, 1100, and / or 1200. The apparatus may be, for example, an apparatus of a UE (such as wireless device 1402 as a UE, as described herein).

[0158] Embodiments contemplated herein include an apparatus comprising: one or more processors; and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of one or more of methods 800, 900, 1000, 1100, and / or 1200. The apparatus may be, for example, an apparatus of a UE (such as wireless device 1402 as a UE, as described herein).

[0159] Embodiments contemplated herein include a signal as described in or associated with one or more elements of one or more of method 800 , method 900 , method 1000 , method 1100 , and / or method 1200 .

[0160] Embodiments contemplated herein include a computer program or computer program product including instructions, wherein execution of the program by a processor causes the processor to perform one or more elements of one or more of methods 800, 900, 1000, 1100, and / or 1200. The processor may be a processor of a UE (such as processor 1404 of wireless device 1402 as a UE, as described herein). These instructions may be located, for example, in a processor and / or on a memory of a UE (such as memory 1406 of wireless device 1402 as a UE, as described herein).

[0161] Embodiments contemplated herein include an apparatus comprising means for performing one or more elements of method 700. The apparatus may be, for example, an apparatus that is a base station (such as network device 1418 that is a base station, as described herein).

[0162] Embodiments contemplated herein include one or more non-transitory computer-readable media including instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform one or more elements of method 700. For example, the non-transitory computer-readable medium may be a memory of a base station (such as memory 1422 of network device 1418 acting as a base station, as described herein).

[0163] Embodiments contemplated herein include an apparatus comprising logical components, modules, or circuits for performing one or more elements of method 700. The apparatus may be, for example, an apparatus of a base station (such as network device 1418 as a base station, as described herein).

[0164] Embodiments contemplated herein include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of method 700. The apparatus may be, for example, an apparatus that is a base station (such as network device 1418 that is a base station, as described herein).

[0165] Embodiments contemplated herein include a signal as described in or in connection with one or more elements of method 700 .

[0166] Embodiments contemplated herein include a computer program or computer program product including instructions, wherein execution of the program by a processing element causes the processing element to perform one or more elements of method 700. The processor may be a processor of a base station (such as processor 1420 of network device 1418 as a base station, as described herein). These instructions may be located, for example, in a processor and / or on a memory of a base station (such as memory 1422 of network device 1418 as a base station, as described herein).

[0167] For one or more embodiments, at least one of the components set forth in one or more of the foregoing figures may be configured to perform one or more operations, techniques, processes, and / or methods as described herein. For example, a baseband processor as described herein in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples set forth herein. For another example, circuits associated with a UE, a base station, a network element, etc. as described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples set forth herein.

[0168] Unless otherwise expressly stated, any of the above embodiments may be combined with any other embodiment (or combination of embodiments). The foregoing description of one or more specific implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise form disclosed. In view of the above teachings, modifications and variations are possible or can be obtained from the practice of various embodiments.

[0169] Embodiments and implementations of the systems and methods described herein may include various operations that may be embodied in machine executable instructions to be executed by a computer system. A computer system may include one or more general or special purpose computers (or other electronic devices). A computer system may include hardware components that include specific logic components for performing operations; or may include a combination of hardware, software, and / or firmware.

[0170] It should be appreciated that the systems described herein include descriptions of specific embodiments. These embodiments may be combined into a single system, partially combined into other systems, separated into multiple systems, or otherwise divided or combined. In addition, it is contemplated that parameters, attributes, aspects, etc. of another embodiment may be used in one embodiment. For clarity, these parameters, attributes, aspects, etc. are described only in one or more embodiments, and it should be appreciated that these parameters, attributes, aspects, etc. may be combined with or substituted for parameters, attributes, aspects, etc. of another embodiment unless expressly stated herein.

[0171] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of the authorized use should be clearly stated to users.

[0172] Although the foregoing has been described in considerable detail for the sake of clarity, it will be apparent that certain changes and modifications may be made without departing from the principles of the invention. It should be noted that there are many alternative ways to implement both the processes and the apparatus described herein. Therefore, the embodiments of the present invention should be regarded as illustrative rather than restrictive, and the specification is not limited to the details given herein, but may be modified within the scope and equivalents of the appended claims.

Claims

1. A method of a radio access network (RAN), the method comprising: Transmitting a plurality of transmission configuration indication identifier (TCI) status lists to a user equipment (UE); transmitting a first medium access control control element (MAC-CE) to the UE, the first medium access control control element (MAC-CE) indicating a first plurality of TCI states for a first transmit reception point (TRP) of the RAN from the plurality of TCI state lists; transmitting a second MAC-CE to the UE, the second MAC-CE indicating a second plurality of TCI states for a second TRP of the RAN from the plurality of TCI state lists; transmitting, to the UE, first downlink control information (DCI) including a first TCI field having a first TCI code point value identifying one or more TCI states of the first plurality of TCI states for the UE to use to communicate with the first TRP; as well as After transmitting the first DCI, communicate with the UE using the first TRP and the second TRP.

2. The method according to claim 1, wherein: The first TRP is associated with a first control resource set (CORESET) pool corresponding to a first CORESET pool index value; and The first MAC-CE includes a first CORESET pool index field indicating the first CORESET pool index value.

3. The method according to claim 1, wherein: The first TRP is associated with a first control resource set (CORESET) pool corresponding to a first CORESET pool index value; and The first MAC-CE is transmitted through a physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) transmitted in a CORESET of the first CORESET pool.

4. The method of claim 1, wherein the first MAC-CE comprises a bit field corresponding to the first TCI field, the bit field having a value identifying a number of the first plurality of TCI states associated with the first TCI code point of the first TCI field.

5. The method according to claim 1 also includes transmitting a second DCI to the UE including a second TCI field, the second TCI field having a second TCI code point value identifying one or more TCI states of the second plurality of TCI states for the UE to use to communicate with the second TRP, wherein the communication with the UE using the first TRP and the second TRP occurs after transmitting the second DCI.

6. The method of claim 1, wherein the first TCI code point value also identifies one or more TCI states of the second plurality of TCI states used by the UE to communicate with the second TRP.

7. The method of claim 1, wherein the first DCI further comprises a second TCI field having a second TCI code point value identifying one or more TCI states of the second plurality of TCI states used by the UE to communicate with the second TRP.

8. The method of claim 1, wherein the first DCI further comprises a bit field having a value identifying that the first TCI code point value is associated with the first TRP.

9. A method of a user equipment (UE), the method comprising: receiving a plurality of transmit configuration indication identifier (TCI) status lists from a network; receiving a first medium access control control element (MAC-CE) from the network, the first medium access control control element (MAC-CE) indicating a first plurality of TCI states for a first transmit reception point (TRP) of the network from the plurality of TCI state lists; receiving a second MAC-CE from the network, the second MAC-CE indicating a second plurality of TCI states for a second TRP of the network from the plurality of TCI state lists; receiving, from the network, first downlink control information (DCI) including a first TCI field having a first TCI code point value identifying one or more TCI states of the first plurality of TCI states for the UE to use to communicate with the first TRP; as well as Communicate with the network using the first TRP and the second TRP after receiving the first DCI.

10. The method according to claim 9, wherein: The first TRP is associated with a first control resource set (CORESET) pool corresponding to a first CORESET pool index value; and The first MAC-CE includes a first CORESET pool index field indicating the first CORESET pool index value; and The method also includes identifying that the first MAC-CE is for the first TRP based on the indication of the first CORESET pool index value in the first CORESET pool index field of the first MAC-CE.

11. The method according to claim 9, wherein: The first TRP is associated with a first control resource set (CORESET) pool corresponding to a first CORESET pool index value; and The first MAC-CE is received through a physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) received in a CORESET of the first CORESET pool; and The method also includes identifying that the first MAC-CE is for the first TRP based on receiving the PDCCH in the CORESET of the first CORESET pool.

12. The method of claim 9, wherein the first MAC-CE includes a bit field corresponding to the first TCI field, the bit field having a value identifying a number of the first plurality of TCI states associated with the first TCI code point of the first TCI field.

13. The method of claim 9, further comprising receiving from the network a second DCI comprising a second TCI field having a second TCI code point value identifying one or more TCI states of the second plurality of TCI states for the UE to use to communicate with the second TRP, wherein the communication with the network using the first TRP and the second TRP occurs after receiving the second DCI.

14. The method of claim 9, wherein the first TCI code point value also identifies one or more TCI states of the second plurality of TCI states used by the UE to communicate with the second TRP.

15. The method of claim 9, wherein the first DCI further comprises a second TCI field having a second TCI code point value identifying one or more TCI states of the second plurality of TCI states used by the UE to communicate with the second TRP.

16. The method of claim 9, wherein the first DCI further comprises a bit field having a value identifying that the first TCI code point is associated with the first TRP.

17. A method of a user equipment (UE), the method comprising: receiving a medium access control control element (MAC-CE) from a network, the medium access control control element (MAC-CE) indicating a plurality of transmit configuration indication identification (TCI) states for a transmit reception point (TRP) of the network associated with a CORESET pool corresponding to a control resource set (CORESET) pool index value, wherein the MAC-CE includes a first bit corresponding to a TCI code point value, the first bit identifying a number of the plurality of TCI states identified by the TCI code point value; receiving, from the network, downlink control information (DCI) including a first TCI bit field having the TCI code point value; as well as After receiving the first DCI, use the TRP to communicate with the network.

18. The method of claim 17, wherein the MAC-CE indicates the CORESET pool index value, and the method further comprises identifying that the MAC-CE is for the TRP based on the indication of the CORESET pool index value in the MAC-CE.

19. The method of claim 17, wherein the MAC-CE is received via a physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) received in a CORESET of the CORESET pool, and the method further comprises identifying that the MAC-CE is for the TRP based on receiving the PDCCH in the CORESET of the CORESET pool.

20. The method of claim 17, wherein the MAC-CE further comprises a second bit corresponding to a TCI state among the plurality of TCI states, the second bit identifying whether the TCI state is for an uplink (UL) or a downlink (DL).

21. An apparatus comprising means for performing the method according to any one of claims 1 to 20.

22. A computer-readable medium comprising instructions, wherein when one or more processors of an electronic device execute the instructions, the electronic device executes the method according to any one of claims 1 to 20.

23. An apparatus comprising logic components, modules or circuits for performing the method according to any one of claims 1 to 20.

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