Power control information for common tci state
By measuring path loss and receiving multiple power control configurations, the problem of inconsistent power control parameters in the high-frequency band of wireless communication was solved, and effective power control of the shared TCI state channel and reference signal was achieved, improving communication quality and coverage.
Patent Information
- Application Number
- CN202180087822.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-12-07
- Filing Date
- 2021-12-08
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2041-12-08
AI Technical Summary
In wireless communication, when using higher frequency bands, path loss is high and the distance is short, making it difficult to unify the power control parameters of different uplink channels and reference signals, which affects communication quality.
By measuring path loss and receiving multiple power control configurations, the transmission power of the uplink channel or reference signal is determined based on these configurations to achieve effective power control of channels and reference signals that share the same TCI state.
This ensured that the UL performance metrics for different uplink channels and reference signals met the requirements, improving communication quality and coverage.
Smart Images

Figure CN116671191B_ABST
Abstract
Description
[0001] Cross-reference to related applications
[0002] This application claims priority to U.S. Application No. 17 / 544,573, filed December 7, 2021, which claims the rights and priorities of U.S. Provisional Application No. 63 / 133,738, filed January 4, 2021, the entire contents of which are expressly incorporated herein by reference and, as fully set forth hereinafter, are used for all applicable purposes. Technical Field
[0003] Various aspects of this disclosure relate to wireless communications, and more specifically, various aspects of this disclosure relate to techniques for configuring power control parameters for uplink channels and / or reference signals that share the same Common Transmission Configuration Indicator (TCI) state. Background Technology
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. These wireless communication systems can employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access systems include the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system, the improved LTE (LTE-A) system, Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems.
[0005] These multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the city, national, regional, and even global levels. However, with the continued growth in demand for mobile broadband access, there is a need for further improvements to these and emerging wireless communication technologies. Summary of the Invention
[0006] Some aspects can be implemented in a method performed by a user equipment (UE). In summary, the method includes: measuring path loss at the UE; receiving a plurality of power control configurations from the network, wherein: each of the plurality of power control configurations includes a corresponding plurality of power control parameters, and each of the plurality of power control configurations is adapted to a corresponding uplink channel or reference signaling object associated with a Common Transport Configuration Indication (TCI) state; and transmitting at least one uplink channel or reference signaling object with a transmission power based on the measured path loss and at least one of the power control configurations.
[0007] Some aspects can be implemented in a method performed by a base station (BS). In general, the method includes: sending a plurality of power control configurations to a user equipment (UE), wherein: each of the plurality of power control configurations includes a corresponding plurality of power control parameters, and each of the plurality of power control configurations is adapted to a corresponding uplink channel or reference signal object associated with a Common Transport Configuration Indication (TCI) state; and receiving at least one uplink channel or reference signal object having a transmission power based on at least one of the power control configurations.
[0008] Other aspects include: a processing system configured to perform the methods described above and those described herein; a non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform the methods described above and those described herein; a computer program product embodied on a computer-readable storage medium comprising code for performing the methods described above and those further described herein; and a processing system comprising units for performing the methods described above and those further described herein.
[0009] The following description and accompanying drawings illustrate certain illustrative features of one or more aspects. However, these features can be indicated in only a few of the various ways in which the principles of each aspect may be applied. Attached Figure Description
[0010] The accompanying drawings depict certain features of the various aspects described herein and should not be considered as limiting the scope of this disclosure.
[0011] Figure 1 This is a block diagram conceptually illustrating an example wireless communication network according to certain aspects of this disclosure.
[0012] Figure 2This is a block diagram conceptually illustrating various aspects of an example base station (BS) and user equipment (UE) according to certain aspects of this disclosure.
[0013] Figure 3A , 3B 3C and 3D depict various example aspects of data structures used in wireless communication networks.
[0014] Figure 4A This is a flowchart illustrating example operations for wireless communication by a user equipment (UE) in accordance with certain aspects of this disclosure.
[0015] Figure 4B This is a flowchart illustrating example operations for wireless communication by a base station (BS) in accordance with certain aspects of this disclosure.
[0016] Figure 5 This is an example call flowchart illustrating example operation of wireless communication between a UE and a BS according to certain aspects of this disclosure.
[0017] Figure 6 An example wireless communication device is shown that is configured to perform operations for the methods disclosed herein, according to certain aspects of this disclosure.
[0018] Figure 7 An example wireless communication device is shown that is configured to perform operations for the methods disclosed herein, according to certain aspects of this disclosure.
[0019] To aid understanding, the same reference numerals have been used where possible to designate common elements for the purposes of the figures. It is intended that elements disclosed in one aspect can be usefully applied to other aspects without requiring specific description. Detailed Implementation
[0020] Various aspects of this disclosure provide systems and methods for configuring power control parameters for uplink channels and / or reference signals sharing a common Transport Configuration Indicator (TCI) state. When communicating on the uplink (UL), the UE can determine the transmission power for uplink transmission based on one or more power control (PC) parameters. In some cases, the power control parameters for different UL channels and / or reference signals sharing the same TCI state may differ due to different target UL performance metrics (e.g., UL Reference Signal Received Power (RSRP), Signal-to-Noise Ratio (SNR), Signal-to-Interference-Ratio (SINR), etc.). Therefore, various aspects of this disclosure provide techniques for configuring power control parameters for uplink channels and / or reference signals sharing a common TCI state. In some cases, such techniques can be used to ensure that various UL performance metrics for these different UL channels and / or reference signals are met.
[0021] Introduction to wireless communication networks
[0022] Figure 1 An example of a wireless communication network 100 in which the aspects described herein can be implemented is depicted.
[0023] Typically, wireless communication network 100 includes base station (BS) 102, user equipment (UE) 104, and one or more core networks (such as evolved packet core (EPC) 160 and 5G core (5GC) network 190), which interoperate to provide wireless communication services.
[0024] BS 102 can provide UE 104 with an access point to EPC 160 and / or 5GC 190, and can perform one or more of the following functions: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and device tracking, RAN information management (RIM), paging, location, delivery of warning messages, and other functions. In various contexts, a base station may include and / or be referred to as a gNB, NodeB, eNB, ng-eNB (e.g., an eNB that has been enhanced to provide connectivity to both EPC 160 and 5GC 190), access point, base transceiver, radio base station, radio transceiver, or transceiver functional unit, or transmit / receive point.
[0025] A base station (such as BS 102) may include components located at a single physical location or components located at various physical locations. In examples where the base station includes components located at various physical locations, each component may perform various functions, such that the various components collectively achieve functions similar to a base station located at a single physical location. Thus, a base station can equivalently refer to a standalone base station or a base station including components located at various physical or virtualized locations. In some implementations, a base station including components located at various physical locations may be referred to as or associated with a decomposed radio access network (RAN) architecture (such as an open RAN (O-RAN) or virtualized RAN (VRAN) architecture). In some implementations, such components of a base station may include or refer to one or more of a central unit (CU), a distributed unit (DU), or a radio unit (RU).
[0026] BS 102 communicates wirelessly with UE 104 via communication link 120. Each of BS 102 can provide communication coverage for a corresponding geographic coverage area 110, which may overlap in some cases. For example, a small cell 102' (e.g., a low-power base station) may have a coverage area 110' that overlaps with the coverage areas 110 of one or more macro cells (e.g., high-power base stations).
[0027] The communication link 120 between BS 102 and UE 104 may include uplink (UL) (also referred to as reverse link) transmission from UE 104 to BS 102 and / or downlink (DL) (also referred to as forward link) transmission from BS 102 to UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, which in various aspects includes spatial multiplexing, beamforming, and / or transmit diversity.
[0028] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radio units, global positioning systems, multimedia devices, video devices, digital audio players, cameras, game consoles, tablet devices, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, medical devices, implants, sensors / actuators, displays, or other similar devices. Some UEs in UE 104 can be Internet of Things (IoT) devices (e.g., parking meters, air pumps, ovens, vehicles, heart monitors, or other IoT devices), always-on (AON) devices, or edge processing devices. UE 104 can also be more generally referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, mobile phone, user agent, mobile client, or client.
[0029] Compared to lower-frequency communication, communication using higher frequency bands may have higher path loss and shorter distances. Therefore, some base stations (e.g., Figure 1 The BS 180 (e.g., gNB) and UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming.
[0030] In some cases, BS 180 may transmit beamformed signals to UE 104 in one or more transmit directions 182'. UE 104 may receive beamformed signals from BS 180 in one or more receive directions 182'. UE 104 may also transmit beamformed signals to BS 180 in one or more transmit directions 182'. BS 180 may also receive beamformed signals from UE 104 in one or more receive directions 182'. BS 180 and UE 104 can then perform beamforming to determine the optimal receive and transmit directions for each of BS 180 and UE 104. It is worth noting that the transmit and receive directions for BS 180 may be the same or different. Similarly, the transmit and receive directions for UE 104 may be the same or different.
[0031] In some cases, the BS 102 in the wireless communication network 100 may include a power control information component 199, which can be configured to perform actions regarding... Figure 4B and Figure 5The operations described herein, as well as other operations described herein for configuring power control parameters for channels and / or reference signals sharing the same common TCI state, are also included. Furthermore, the UE 104 in the wireless communication network 100 may include a power control information component 198, which can be configured to perform operations related to... Figure 4A and Figure 5 The operations described herein, as well as other operations described herein for receiving power control parameters for channels and / or reference signals that share the same common TCI state.
[0032] Figure 2 Various aspects of example BS 102 and UE 104 are depicted. Typically, BS 102 includes various processors (e.g., 220, 230, 238, and 240), antennas 234a-t (collectively referred to as 234), transceivers 232a-t (collectively referred to as 232) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., data source 212) and the wireless reception of data (e.g., data sink 239). For example, BS 102 can transmit and receive data between itself and UE 104.
[0033] BS 102 includes a controller / processor 240, which can be configured to implement various functions related to wireless communication. In the depicted example, the controller / processor 240 includes a power control information component 241, which can represent... Figure 1 The power control information component 241 is described as one aspect of the controller / processor 240. It is worth noting that although the power control information component 241 is depicted as one aspect of the controller / processor 240, in other implementations, the power control information component 241 may be implemented additionally or alternatively in various other aspects of BS 102.
[0034] Typically, UE 104 includes various processors (e.g., 258, 264, 266, and 280), antennas 252a-r (collectively referred to as 252), transceivers 254a-r (collectively referred to as 254) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., data source 262) and the wireless reception of data (e.g., data sink 260).
[0035] UE 104 includes a controller / processor 280, which can be configured to implement various functions related to wireless communication. In the depicted example, the controller / processor 280 includes a power control information component 281, which can represent... Figure 1 The power control information component 198 is described in the controller / processor 280. It is worth noting that although the power control information component 281 is depicted as one aspect of the controller / processor 280, in other implementations, the power control information component 281 may be implemented additionally or alternatively in various other aspects of the UE 104.
[0036] Figure 3A , 3B 3C and 3D depict the use of wireless communication networks (such as...) Figure 1 The data structure of the wireless communication network 100) covers various aspects. Specifically, Figure 3A This is a schematic diagram 300 illustrating an example of the first subframe within a 5G (e.g., 5G NR) frame structure. Figure 3B This is a schematic diagram 330 illustrating an example of a DL channel within a 5G subframe. Figure 3C This is a schematic diagram 350 illustrating an example of a second subframe within a 5G frame structure, and Figure 3D This is a schematic diagram 380 illustrating an example of a UL channel within a 5G subframe.
[0037] Information about this will be provided later in the published content of this article. Figure 1 , Figure 2 and Figure 3A , 3B Further discussion on 3C and 3D.
[0038] Introduction to mmWave wireless communication
[0039] In wireless communication, the electromagnetic spectrum is typically subdivided into various categories, bands, channels, or other characteristics. This subdivision is usually based on wavelength and frequency, where frequency can also be referred to as carrier, subcarrier, frequency channel, tone, or subband.
[0040] 5G networks can utilize several frequency ranges, which in some cases are defined by standards such as 3GPP standards. For example, although the 3GPP technical standard TS 38.101 currently defines Frequency Range 1 (FR1) as including 600MHz-6 GHz, specific uplink and downlink allocations may fall outside this general range. Therefore, FR1 is often referred to (interchangeably) as the "below 6 GHz" band.
[0041] Similarly, although TS 38.101 currently defines Frequency Range 2 (FR2) as including 26–41 GHz, specific uplink and downlink allocations may fall outside this general range. FR2 is sometimes referred to (interchangeably) as the “millimeter wave” (“mmW” or “mmWave”) band, although it differs from the Extremely High Frequency (EHF) band (30 GHz–300 GHz) designated as “millimeter wave” by the International Telecommunication Union (ITU) because the wavelengths at these frequencies are between 1 and 10 millimeters.
[0042] Compared to low-frequency communication, communication using mmWave / near-mmWave radio frequency bands (e.g., 3 GHz–300 GHz) may have higher path loss and shorter range. As mentioned above... Figure 1 As described, a base station (e.g., 180) configured to communicate using the mmWave / near mmWave radio frequency band can utilize beamforming (e.g., 182) with the UE (e.g., 104) to improve path loss and range.
[0043] Example power control information for common TCI state
[0044] In some networks (such as fifth-generation (5G) New Radio (NR) networks), a User Equipment (UE) can communicate with the network via one or more cells (e.g., one or more serving cells) and using one or more component carriers (or carrier bandwidths). In 5G, each component carrier can be defined by one or more bandwidth portions (BWPs). In some cases, a bandwidth portion can be considered as a contiguous set of physical resource blocks selected from adjacent subsets of common resource blocks used for a given digital scheme on a given carrier. In some cases, for a given carrier, a UE can be configured to have up to four BWPs in both the downlink (DL) and uplink (UL).
[0045] Furthermore, in some cases, at any given time, only one BWP for a given carrier can be active. For example, assuming the UE is configured with four BWPs (BWP0, BWP1, BWP2, and BWP3), at a given time, only one of the four BWPs can be active, while the others remain inactive. However, although only one BWP is active at a time, the active BWP can be switched to a different BWP. For example, assuming BWP1 is the active BWP, it can be switched to BWP2 or BWP3 based on certain criteria.
[0046] In some cases, a UE can be configured with a set of beam indications for communication in one or more BWPs. For uplink transmissions, the beam indication set can be a spatial relationship. For downlink transmissions, the beam indication set can be a Transport Configuration Indication (TCI) state. The beam indication set can be configured for a specific channel or a specific transmission type. The UE can be configured with the beam indication set via higher-layer signaling such as Radio Resource Control (RRC) signaling. In some examples, a subset of the configured set can be activated via a Medium Access Control Element (MAC-CE). In some examples, an indication in the Downlink Control Information (DCI) can indicate (e.g., via a 3-bit indicator) a beam indication for a transmission scheduled by the DCI. The indicated TCI state or spatial relationship can respectively indicate to the UE the receive beam or transmit beam to be used.
[0047] Different TCI beam indication types (or TCI state types) may exist. For example, in some cases, the TCI beam indication type may include several single-channel beam indication types, such as: (1) a separate DL single-channel / RS TCI state to indicate the beam used for a single DL channel / RS, (2) a separate UL single-channel / RS TCI state to indicate the beam used for a single UL channel / RS, and (3) UL spatial relation information to indicate the beam used for a single UL channel / RS. In addition, in some cases, the TCI beam indication type may include three additional multi-channel beam indication types, including: (4) a combined DL / UL common TCI state to indicate the common beam used for at least one DL channel / RS and at least one UL channel / RS, (5) a separate DL common TCI state to indicate the common beam used for at least two DL channels / RS, and (6) a separate UL common TCI state to indicate the common beam used for at least two UL channels / RS. Typically, these beam indication types / TCI states can be updated via downlink control information (DCI). When updated, the application time associated with the updated beam indication type / TCI status can be determined from the completion of receiving DCI or the completion of receiving acknowledgment of DCI from the transmit indication.
[0048] In some cases, when communicating on the uplink (UL), the UE can determine the transmission power used for uplink transmission based on one or more power control (PC) parameters. Furthermore, when communicating on the UL, the UE can apply a joint DL / UL common beam TCI state (e.g., type 4 above) to at least one UL channel / RS, or it can apply a separate UL common beam TCI state to at least two UL channels / RS (e.g., type 6 above). Although multiple UL channels / RS can share the same beam indicated by one of the common beam TCI states, the PC parameters may differ across the applied UL channels / RS due to different target UL performance metrics (such as UL reference signal received power (RSRP), signal-to-noise ratio (SNR), signal-to-interference-plus-noise ratio (SINR), target received power level (P0) (e.g., for PUSCH), etc.). Therefore, there is a question regarding how to signal the PC parameters of the various UL channels / RS to which the same joint DL / UL common beam TCI state or a separate UL common beam TCI state is applied.
[0049] Therefore, various aspects of this disclosure provide techniques for providing power control parameters for uplink channels and / or reference signals sharing a common TCI state. For example, in some cases, such techniques may include receiving multiple power control configurations and transmitting at least one uplink channel or reference signal object with a transmission power based on the transmission power of at least one of the multiple power control configurations. In some cases, each of the multiple power control configurations may include multiple power control parameters and may be applicable to an uplink channel or reference signal object associated with a common TCI state.
[0050] Example operation for providing power control parameters for uplink channels or reference signals to share common TCI states.
[0051] Figure 4A This is a flowchart illustrating an example operation 400A for wireless communication according to certain aspects of this disclosure.
[0052] For example, operation 400A can be performed by the UE (e.g., in...). Figure 1 and Figure 2 The UE 104 shown in the diagram executes power control parameters for receiving channels and / or reference signals that share the same common TCI state. Operation 400A can be implemented in one or more processors (e.g., Figure 2 The software components that execute and run on the controller / processor 280. Furthermore, in operation 400A, the UE can transmit and receive signals, for example, via one or more antennas (e.g., Figure 2This can be achieved via antenna 252. In some aspects, the UE's transmission and / or reception of signals can be achieved via a bus interface for acquiring and / or outputting signals from one or more processors (e.g., controller / processor 280).
[0053] At 402A, Operation 400A begins by measuring the path loss at the UE. In some cases, the UE can measure the path loss based on one or more Path Loss Reference Signals (PL-RS) received from the network.
[0054] At box 404A, the UE receives multiple power control configurations from the network.
[0055] In some cases, each of the multiple power control configurations includes a corresponding number of power control parameters. Furthermore, in some cases, each of the multiple power control configurations applies to a specific uplink channel or reference signaling object associated with the Common Transport Configuration Indication (TCI) state. In some cases, the UE can use the power control configuration (and the corresponding power control parameters) to determine the transmission power used to transmit at least one uplink channel or reference signaling object (such as the Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), etc.). In some cases, the transmission power can be further determined based on measured path loss.
[0056] At box 406A, the UE transmits at least one uplink channel or reference signal object based on the measured path loss and the transmission power of at least one of the power control configurations in a plurality of power control configurations.
[0057] Figure 4B This is a flowchart illustrating an example operation 400B for wireless communication according to certain aspects of this disclosure. Operation 400B can be performed by, for example, a BS (e.g., in...). Figure 1 and Figure 2 The operation 400B is performed as shown in BS 102 to provide power control parameters for channels and / or reference signals sharing the same common TCI state. Figure 4A The operation 400A performed by the UE is complementary to the described operation. Operation 400B can be implemented in one or more processors (e.g., Figure 2 The software components that execute and run on the controller / processor 240. Furthermore, in operation 400B, the BS can transmit and receive signals via, for example, one or more antennas (e.g., Figure 2This can be achieved via antenna 234. In some aspects, the BS can transmit and / or receive signals via a bus interface that acquires and / or outputs signals from one or more processors (e.g., controller / processor 240).
[0058] At 402B, operation 400B begins by sending multiple power control configurations to the UE.
[0059] In some cases, each of the multiple power control configurations includes multiple power control parameters. Furthermore, in some cases, each of the multiple power control configurations applies to an uplink channel or reference signal object associated with a Common Transmission Configuration Indication (TCI) state.
[0060] At 404B, the BS receives at least one uplink channel or reference signal object having a transmission power based on at least one of the power control configurations among a plurality of power control configurations.
[0061] An example call flow illustrating example operations between a base station and a user equipment for providing power control parameters for sharing the uplink channel or reference signal for common TCI state.
[0062] Figure 5 It is shown that by the UE (e.g., in Figure 1 and Figure 2 The UE 104 shown in the figure) and BS (e.g., in Figure 1 and 2 The example call flowchart shown is an example of BS 102 performing operations 500 to provide power control parameters for channels and / or reference signals that share the same common TCI state.
[0063] As shown in the figure, in box 502, operation 500 begins with the following operation: UE 104 measures path loss based on PL-RS received from BS 102.
[0064] At box 504, BS 102 sends multiple power control configurations to the UE. In some cases, each of the multiple power control configurations includes multiple power control parameters. Furthermore, in some cases, each of the multiple power control configurations applies to an uplink channel or reference signal object associated with a common TCI state.
[0065] Subsequently, as shown in box 506, UE 104 transmits at least one uplink channel or reference signaling object to BS 102 based on the path loss measured at 502 and the transmission power of at least one of the power control configurations among a plurality of power control configurations received at 504. In some cases, the uplink channel or reference signaling object may include, for example, PUSCH, SRS, etc.
[0066] Additional details for providing power control parameters for uplink channels or reference signals that share a common TCI state.
[0067] As described above, aspects of this disclosure provide techniques for providing power control parameters for channels and / or reference signals sharing the same common beam TCI state. According to each aspect, the power control parameters can be included in multiple power control configurations, wherein each of the multiple power control configurations is applicable to a corresponding UL channel / RS object associated with the common TCI state.
[0068] In some cases, each corresponding uplink channel or reference signal object may define at least one of the following: a physical uplink channel type for the corresponding uplink channel or reference signal object, physical uplink resources for the corresponding uplink channel or reference signal object, or a set of physical uplink resources for the corresponding uplink channel or reference signal object. In some cases, the physical uplink channel type is one of the following: a sounding reference signal (SRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH). Furthermore, in some cases, the physical uplink resource is either an SRS resource or a PUCCH resource. Additionally, in some cases, the physical uplink resource set is either an SRS resource set or a PUCCH resource set.
[0069] In some cases, power control parameters may include, for example, P0, α (e.g., path loss compensation factor), closed-loop power control index, and information about path loss RS (e.g., for measuring path loss). Furthermore, in some cases, the TCI state may include at least one of the following: a combined DL / UL common beam TCI state or a separate UL common beam TCI state (e.g., TCI beam indication types 4 and 6 described above). In other words, in some cases, the common TCI state indicates the common TCI state for at least one downlink channel or reference signal object and at least one uplink channel or reference signal object. Furthermore, in some cases, the common TCI state indicates the common TCI state for at least one first uplink channel or reference signal object and one second uplink channel or reference signal object.
[0070] In some cases, all or a subset of the power control parameters included in the corresponding power control configuration for the UL channel / RS to which TCI state is applied may be signaled or otherwise provided to the UE in different ways.
[0071] For example, in some cases, power control configuration can be signaled or provided according to the first approach. In some cases, the first approach of signaling power control configuration (including corresponding power control parameters) may include signaling / providing the power control configuration (e.g., including corresponding power control parameters) for each UL channel / RS object, regardless of which TCI state is applied to the UL channel / RS object. Therefore, for example, in some cases, each corresponding power control configuration among multiple power control configurations may depend on the corresponding uplink channel or reference signaling object associated with that corresponding power control configuration (e.g., the one to which the corresponding power control configuration applies), regardless of the common TCI state associated with the corresponding uplink channel or reference signaling object. In other words, all or a subset of the power control parameters within a corresponding power control configuration may depend solely on the UL channel / RS object and remain unchanged with respect to the applied TCI state.
[0072] In other cases, the power control configuration can be signaled or provided using the second approach. In some cases, the second approach of signaling the power control configuration (including the corresponding power control parameters) may include signaling or otherwise providing the power control configuration (e.g., including the corresponding power control parameters) for each TCI state, regardless of the UL channel / RS object to which the TCI state is applied. Therefore, for example, in some cases, each corresponding power control configuration in a plurality of power control configurations depends on the corresponding common TCI state associated with that corresponding power control configuration among a plurality of common TCI states, which may disregard the corresponding uplink channel or reference signaling object associated with that common TCI state. In other words, all or a subset of the power control parameters within the corresponding power control configuration depend only on the applied common TCI state and remain unchanged for the UL channel / RS object to which the common TCI state is applied.
[0073] Furthermore, in some cases, power control configuration can be signaled or provided in a third manner. In some cases, this third method of signaling power control configuration (including corresponding power control parameters) may include signaling or otherwise providing the power control configuration (e.g., including corresponding power control parameters) for each UL channel / RS object and each TCI state. For example, in some cases, each corresponding power control configuration in a plurality of power control configurations depends on the corresponding uplink channel or reference signal object associated with that corresponding power control configuration and the corresponding common TCI state in a plurality of common TCI states associated with that corresponding power control configuration. In other words, all or a subset of the power control parameters within a corresponding power control configuration depends on both the applied TCI state and the UL channel / RS object.
[0074] Depending on certain aspects, the power control configuration provided via the first method described above (e.g., where each UL channel / RS object provides all or a subset of the corresponding power control parameters for each power control configuration) can be provided via explicit signaling. For example, when using the first method of providing power control configurations, each of the multiple power control configurations can be configured in the same information element (IE) as the corresponding uplink channel or reference signal object associated with the corresponding power control configuration (e.g., in the same IE as the uplink channel or reference signal object to which the corresponding power control configuration applies).
[0075] In other cases, when using the first method of providing power control configuration, each of the multiple power control configurations can be configured in an IE different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration applies. In such cases, a pre-configured relationship can be used to associate the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with that power control configuration. As an example, power control configuration ID#1 can be linked to UL channel / RS object ID#5. In some cases, the pre-configured relationship can be configured in the memory of the UE (e.g., UE 104) prior to UE operation (e.g., configured by the UE manufacturer).
[0076] In some cases, when using the first method of providing power control configuration, the power control configuration (including the corresponding power control parameters) can be dynamically signaled in the downlink control information (DCI) or MAC-CE (e.g., in a separate field). In some cases, dynamically signaling the power control configuration means that these power control configurations can be sent / updated by BS 102 at will (e.g., at any time) within the DCI or MAC-CE. Therefore, in some cases, each corresponding power control configuration in multiple power control configurations is configured in an IE different from the corresponding uplink channel or reference signaling object to which the corresponding power control configuration applies. In such cases, the dynamically configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signaling object associated with that corresponding power control configuration.
[0077] Depending on certain aspects, in some cases, the power control configuration provided via the second method described above (e.g., where all or a subset of the corresponding power control parameters for each power control configuration are provided for each TCI state) can be provided via explicit signaling or implicit signaling. For example, in some cases, a first option for providing the power control configuration in explicit signaling via the second method may include providing the power control configuration within a TCI state IE. For example, each corresponding power control configuration of a plurality of power control configurations is configured in the same IE as the corresponding common TCI state associated with the corresponding power control configuration.
[0078] In some cases, a second option for providing power control configuration in explicit signaling via a second method may include providing the power control configuration within a separate IE associated with a TCI state via a pre-configured link or association. For example, in some cases, each of a plurality of power control configurations is configured in an IE different from the corresponding common TCI state associated with that power control configuration. In such cases, a pre-configured relationship can associate the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with that power control configuration.
[0079] In some cases, a third option for providing power control configuration in explicit signaling via the second method may include dynamically providing the power control configuration and corresponding TCI state in the DCI and / or MAC-CE (e.g., in separate fields). For example, in some cases, each corresponding power control configuration in multiple power control configurations is configured in an IE different from the corresponding common TCI state associated with that power control configuration, and for each corresponding power control configuration of the multiple power control configurations, a dynamically configured relationship associates the IE of that corresponding power control configuration with the IE of the corresponding common TCI state associated with that power control configuration. Furthermore, according to the third option of the second method of providing power control configuration, the UE may receive one or more MAC-CEs or DCIs from a base station of the network, the one or more MAC-CEs or DCIs being configured to dynamically associate the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with that power control configuration.
[0080] As described above, power control configurations provided via the second method (e.g., where all or a subset of the corresponding power control parameters for each power control configuration are provided for each TCI state) can be provided via implicit signaling. For example, in some cases, the path loss RS notified by signaling can be the same as the UL beam indication RS in the TCI state (e.g., QCL-TypeD RS in a combined DL / UL common beam TCI state or spatial RS in a separate UL common beam TCI state). In some cases, if the UL beam indication RS is a periodic DL RS and no separate PL RS is notified by signaling or explicitly enabled (e.g., via an RRC flag) by the network's base station, the implicit PL RS can be implicitly enabled. Therefore, in some cases, at least one of the multiple power control configurations can be implicitly configured based on an uplink beam reference signal for the corresponding common TCI state configuration associated with at least one power control configuration, which can be based on an RRC flag in an RRC message received by the UE.
[0081] Depending on certain aspects, in some cases, the power control configuration provided via the third method described above (e.g., where all or a subset of the corresponding power control parameters for each power control configuration are provided by TCI state) can be provided via explicit signaling. For example, in some cases, a first option for providing the power control configuration in explicit signaling via the third method may include providing or configuring the corresponding power control configuration in the same IE as the corresponding common TCI state associated with each of the multiple power control configurations.
[0082] In some cases, a second option for providing power control configuration in explicit signaling via a third method may include providing the power control configuration within a separate IE, which is associated with a TCI state via a pre-configured link or association. For example, in some cases, each of a plurality of power control configurations may be configured in an IE different from the corresponding common TCI state associated with that power control configuration. In such cases, for each of the plurality of power control configurations, a pre-configured relationship associates the IE of that power control configuration with the IE of the corresponding common TCI state associated with that power control configuration. As an example, power control configuration ID#1 for a UL channel / RS object may be associated with TCI state ID#5, such that the power control configuration is signaled for each UL channel / RS object for each TCI state.
[0083] In some cases, a third option for providing power control configuration in explicit signaling via a third method may include dynamically providing the power control configuration and corresponding TCI state for each UL channel / RS object in the DCI and / or MAC-CE (e.g., in separate fields). For example, in some cases, each corresponding power control configuration among multiple power control configurations may be configured in an IE different from the corresponding common TCI state associated with that power control configuration. In such cases, for each corresponding power control configuration among multiple power control configurations, the dynamically configured relationship associates the IE of that corresponding power control configuration with the IE of the corresponding common TCI state associated with that corresponding power control configuration. Furthermore, according to the third option of the third method for providing power control configuration, the UE may receive one or more MAC-CEs or DCIs from a base station of the network, the one or more MAC-CEs or DCIs being configured to dynamically associate the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with that corresponding power control configuration.
[0084] Example wireless communication device
[0085] Figure 6 An example communication device 600 is depicted, which includes operable, configured, or adapted to perform operations using the techniques disclosed herein (such as regarding...). Figure 4B and Figure 5 Various components (depicting and describing operations). In some examples, the communication device 600 may be, for example, about... Figure 1 and Figure 2 The BS 102 described.
[0086] The communication device 600 includes a processing system 602 coupled to a transceiver 608 (e.g., a transmitter and / or receiver). The transceiver 608 is configured to transmit (or emit) and receive signals for the communication device 600, such as the various signals described herein, via an antenna 610. The processing system 602 may be configured to perform processing functions for the communication device 600, including processing signals received and / or to be transmitted by the communication device 600.
[0087] Processing system 602 includes one or more processors 620 coupled to computer-readable medium / memory 630 via bus 606. In some aspects, computer-readable medium / memory 630 is configured to store instructions (e.g., computer-executable code) that, when executed by the one or more processors 620, cause the one or more processors 620 to perform actions... Figure 4B and Figure 5 The operations shown herein, or other operations used to perform the various techniques discussed herein for providing power control parameters for channels and / or reference signals that share the same common TCI state.
[0088] In the illustrated example, computer-readable medium / memory 630 stores code 631 for receiving and code 632 for sending.
[0089] In the depicted example, one or more processors 620 include circuitry configured to implement code stored in computer-readable medium / memory 630, including circuitry 621 for receiving and circuitry 622 for transmitting.
[0090] The various components of the communication device 600 can provide for performing the methods described herein (including those related to...). Figure 4B and Figure 5 ) is a unit.
[0091] In some examples, the unit for sending or transmitting (or the unit for outputting for transmission) may include in Figure 2 The transceiver 232 and / or antenna 234 of BS 102 shown in the figure Figure 6 The transceiver 608 and antenna 610 of the communication equipment 600.
[0092] In some examples, the unit for receiving (or the unit for obtaining) may include in Figure 2 The base station transceiver 232 and / or antenna 234 shown in the figure Figure 6 The transceiver 608 and antenna 610 of the communication equipment 600.
[0093] In some cases, a device may have an interface (a unit for outputting) for outputting signals and / or data for transmission, rather than actually transmitting, for example, signals and / or data. For instance, a processor may output signals and / or data to a radio frequency (RF) front-end via a bus interface for transmission. Similarly, a device may have an interface (a unit for acquiring) for acquiring signals and / or data received from another device, rather than actually receiving signals and / or data. For example, a processor may acquire (or receive) signals and / or data from an RF front-end for receiving via a bus interface. In various aspects, the RF front-end may include a variety of components, including, for example, in... Figure 2 The examples in the document describe transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, etc.
[0094] It is worth noting that, Figure 6 This is just one example, and many other examples and configurations of the communication device 600 are possible.
[0095] Figure 7 An example communication device 700 is depicted, which includes operable, configured, or adapted to perform operations using the techniques disclosed herein (such as regarding...). Figure 4A and Figure 5 Various components (depicting and describing operations). In some examples, the communication device 700 may be, for example, about... Figure 1 and Figure 2 The UE 104 described.
[0096] The communication device 700 includes a processing system 702 coupled to a transceiver 708 (e.g., a transmitter and / or receiver). The transceiver 708 is configured to transmit (or emit) and receive signals for the communication device 700, such as the various signals described herein, via an antenna 710. The processing system 702 may be configured to perform processing functions for the communication device 700, including processing signals received and / or to be transmitted by the communication device 700.
[0097] Processing system 702 includes one or more processors 720 coupled to computer-readable medium / memory 730 via bus 706. In some aspects, the computer-readable medium / memory 730 is configured to store instructions (e.g., computer-executable code) that, when executed by the one or more processors 720, cause the one or more processors 720 to perform actions... Figure 4A and Figure 5 The operations shown herein, or other operations used to perform the various techniques discussed herein for providing power control parameters for channels and / or reference signals that share the same common TCI state.
[0098] In the illustrated example, the computer-readable medium / memory 730 stores code 731 for measurement, code 732 for transmission, and code 733 for reception.
[0099] In the depicted example, one or more processors 720 include circuitry configured to implement code stored in a computer-readable medium / memory 730, including circuitry 721 for measurement, circuitry 722 for transmission, and circuitry 723 for reception.
[0100] The various components of the communication device 700 can provide for performing the methods described herein (including those related to...). Figure 4A and Figure 5 ) is a unit.
[0101] In some examples, the unit for sending or transmitting (or the unit for outputting for transmission) may include in Figure 2 The transceiver 254 and / or antenna 252 of UE 104 shown in the figure Figure 7 The transceiver 708 and antenna 710 of the communication equipment 700 in the middle.
[0102] In some examples, the unit for receiving (or the unit for obtaining) may include in Figure 2 The transceiver 254 and / or antenna 252 of UE104 shown in the figure Figure 7 The transceiver 708 and antenna 710 of the communication equipment 700 in the middle.
[0103] In some examples, the unit used for measurement may include various processing system components, such as: Figure 7 One or more processors 720 in; or in Figure 2 The various aspects of the UE 104 depicted include the receive processor 258, the transmit processor 264, the TX MIMO processor 266, and / or the controller / processor 280 (including the power control information component 281).
[0104] It is worth noting that, Figure 7 This is just one example, and many other examples and configurations of the communication device 700 are possible.
[0105] Example Terms
[0106] Implementation examples are described in the following numbered clauses:
[0107] Clause 1: A method for wireless communication, comprising: measuring path loss at a user equipment; receiving from a network a plurality of power control configurations based on path loss measurements transmitted to the network, wherein: each of the plurality of power control configurations includes a corresponding plurality of power control parameters, and each of the plurality of power control configurations is adapted to a corresponding uplink channel or reference signaling object associated with a Common Transmission Configuration Indication (TCI) state; and transmitting at least one uplink channel or reference signaling object with a transmission power based on the measured path loss and at least one of the power control configurations in the plurality of power control configurations.
[0108] Clause 2: The method according to Clause 1, wherein each of the plurality of power control configurations depends on the respective uplink channel or reference signal object associated with that respective power control configuration.
[0109] Clause 3: The method according to Clause 2, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applicable.
[0110] Clause 4: The method according to Clause 2, wherein: each of the plurality of power control configurations is configured in an information element (IE) different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applied, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
[0111] Clause 5: The method according to Clause 2, wherein: each of the plurality of power control configurations is configured in an information element (IE) different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applicable, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
[0112] Clause 6: The method according to Clause 5 further includes: receiving one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) from the network, the one or more MAC-CE or DCI being configured to dynamically link an IE associated with each of the plurality of power control configurations with an IE associated with the corresponding uplink channel or reference signaling object to which the corresponding power control configuration applies.
[0113] Clause 7: The method according to Clause 1, wherein each of the plurality of power control configurations depends on a corresponding common TCI state associated with the respective power control configuration among a plurality of common TCI states.
[0114] Clause 8: The method according to Clause 7, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
[0115] Clause 9: The method according to Clause 7, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0116] Clause 10: The method according to Clause 7, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0117] Clause 11: The method according to Clause 10 further includes: receiving one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) from the network, the one or more MAC-CE or DCI being configured to associate an IE of each of the plurality of power control configurations with an IE of the corresponding common TCI state associated with that corresponding power control configuration.
[0118] Clause 12: The method according to Clause 7, wherein at least one of the plurality of power control configurations is implicitly configured based on an uplink beam reference signal configured for a corresponding common TCI state associated with the at least one power control configuration.
[0119] Clause 13: The method according to Clause 12, wherein at least one of the plurality of power control configurations is further implicitly configured based on an RRC flag in a Radio Resource Control (RRC) message received by the user equipment.
[0120] Clause 14: The method according to Clause 1, wherein each of the plurality of power control configurations depends on: the respective uplink channel or reference signal object associated with the respective power control configuration; and the respective common TCI state associated with the respective power control configuration among a plurality of common TCI states.
[0121] Clause 15: The method according to Clause 14, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
[0122] Clause 16: The method according to Clause 14, wherein: each of the plurality of power control configurations is configured in an information element (IE) different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0123] Clause 17: The method according to Clause 14, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0124] Clause 18: The method according to Clause 17 further includes: receiving one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) from the network, the one or more MAC-CE or DCI being configured to dynamically associate the IE of each of the plurality of power control configurations with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
[0125] Clause 19: The method according to any one of Clauses 1-18, wherein: each corresponding uplink channel or reference signal object defines a physical uplink channel type for the corresponding uplink channel or reference signal object, and the physical uplink channel type is one of a sounding reference signal (SRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH).
[0126] Clause 20: The method according to any one of Clauses 1-18, wherein: each corresponding uplink channel or reference signal object defines physical uplink resources for the corresponding uplink channel or reference signal object, and the physical uplink resources are one of sounding reference signal (SRS) resources or physical uplink control channel (PUCCH) resources.
[0127] Clause 21: The method according to any one of Clauses 1-18, wherein: each corresponding uplink channel or reference signal object defines a physical uplink resource set for the corresponding uplink channel or reference signal object, and the physical uplink resource set is one of a sounding reference signal (SRS) resource set or a physical uplink control channel (PUCCH) resource set.
[0128] Clause 22: The method according to any one of Clauses 1-21, wherein the common TCI state indicates the common TCI state for at least one downlink channel or reference signal object and at least one uplink channel or reference signal object.
[0129] Clause 23: The method according to any one of Clauses 1-21, wherein the common TCI state indicates the common TCI state for at least the first uplink channel or reference signal object and the second uplink channel or reference signal object.
[0130] Clause 24: A method for wireless communication, comprising: transmitting to a user equipment (UE) a plurality of power control configurations based on received path loss measurements, wherein: each of the plurality of power control configurations includes a corresponding plurality of power control parameters, and each of the plurality of power control configurations is adapted to a corresponding uplink channel or reference signal object associated with a Common Transmission Configuration Indication (TCI) state; and receiving at least one uplink channel or reference signal object having a transmission power based on at least one of the power control configurations of the plurality of power control configurations.
[0131] Clause 25: The method according to Clause 24, wherein each of the plurality of power control configurations depends on the respective uplink channel or reference signal object associated with that respective power control configuration.
[0132] Clause 26: The method according to Clause 25, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applied.
[0133] Clause 27: The method according to Clause 25, wherein: each of the plurality of power control configurations is configured in an information element (IE) different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applied, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
[0134] Clause 28: The method according to Clause 25, wherein: each of the plurality of power control configurations is configured in an information element (IE) different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration is applicable, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
[0135] Clause 29: The method according to Clause 28 further includes: sending one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) to the UE, the one or more MAC-CE or DCI being configured to dynamically link the IE associated with each of the plurality of power control configurations with the IE associated with the corresponding uplink channel or reference signaling object to which the corresponding power control configuration applies.
[0136] Clause 30: The method according to Clause 24, wherein each of the plurality of power control configurations depends on a corresponding common TCI state associated with the respective power control configuration among a plurality of common TCI states.
[0137] Clause 31: The method according to Clause 30, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
[0138] Clause 32: The method according to Clause 30, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0139] Clause 33: The method according to Clause 30, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0140] Clause 34: The method according to Clause 33 further includes: receiving one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) from the network, the one or more MAC-CE or DCI being configured to associate an IE of each of the plurality of power control configurations with an IE of the corresponding common TCI state associated with that corresponding power control configuration.
[0141] Clause 35: The method according to Clause 30, wherein at least one of the power control configurations of the plurality of power control configurations is implicitly configured based on an uplink beam reference signal configured for a corresponding common TCI state associated with the at least one power control configuration.
[0142] Clause 36: The method according to Clause 35, wherein at least one of the plurality of power control configurations is further implicitly configured based on an RRC flag in a Radio Resource Control (RRC) message received by the user equipment.
[0143] Clause 37: The method according to Clause 24, wherein each of the plurality of power control configurations depends on: the respective uplink channel or reference signal object associated with the respective power control configuration; and the respective common TCI state associated with the respective power control configuration among a plurality of common TCI states.
[0144] Clause 38: The method according to Clause 37, wherein each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
[0145] Clause 39: The method according to Clause 37, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a pre-configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0146] Clause 40: The method according to Clause 37, wherein: each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the respective power control configuration, and for each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the respective power control configuration with the IE of the corresponding common TCI state associated with the respective power control configuration.
[0147] Clause 41: The method according to Clause 37 further includes: sending one or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) to the UE, the one or more MAC-CE or DCI being configured to dynamically associate an Information Element (IE) of each of the plurality of power control configurations with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
[0148] Clause 42: The method according to any one of Clauses 24-41, wherein: each corresponding uplink channel or reference signal object defines a physical uplink channel type for the corresponding uplink channel or reference signal object, and the physical uplink channel type is one of a sounding reference signal (SRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH).
[0149] Clause 43: The method according to any one of Clauses 24-41, wherein: each corresponding uplink channel or reference signal object defines physical uplink resources for the corresponding uplink channel or reference signal object, and the physical uplink resources are one of sounding reference signal (SRS) resources or physical uplink control channel (PUCCH) resources.
[0150] Clause 44: The method according to any one of Clauses 24-41, wherein: each corresponding uplink channel or reference signal object defines a physical uplink resource set for the corresponding uplink channel or reference signal object, and the physical uplink resource set is one of a sounding reference signal (SRS) resource set or a physical uplink control channel (PUCCH) resource set.
[0151] Clause 45: The method according to any one of Clauses 24-44, wherein the common TCI state indicates the common TCI state for at least one downlink channel or reference signal object and at least one uplink channel or reference signal object.
[0152] Clause 46. The method according to any one of Clauses 24-44, wherein the common TCI state indicates the common TCI state for at least the first uplink channel or reference signal object and the second uplink channel or reference signal object.
[0153] Clause 47: An apparatus comprising: a memory including computer-executable instructions; one or more processors configured to execute the computer-executable instructions and cause the one or more processors to perform a method according to any one of Clauses 1-46.
[0154] Clause 48: An apparatus comprising: a unit for performing the method according to any one of Clauses 1-46.
[0155] Clause 49: A non-transitory computer-readable medium comprising computer-executable instructions, which, when executed by one or more processors, cause the one or more processors to perform the method according to any one of Clauses 1-46.
[0156] Clause 50: A computer program product embodied on a computer-readable storage medium, comprising: code for performing a method according to any one of Clauses 1-46.
[0157] Additional wireless communication network considerations
[0158] The techniques and methods described herein can be used in a variety of wireless communication networks (or wireless wide area networks (WWANs)) and radio access technologies (RATs). While terms commonly associated with 3G, 4G, and / or 5G (e.g., 5G New Radio (NR)) wireless technologies may be used in this document to describe aspects, the aspects of this disclosure are equally applicable to other communication systems and standards not explicitly mentioned herein.
[0159] 5G wireless communication networks can support a variety of advanced wireless communication services, such as enhanced mobile broadband (eMBB), millimeter wave (mmWave), machine-type communication (MTC), and / or mission-critical services targeting ultra-reliable low-latency communication (URLLC). These and other services may include latency and reliability requirements.
[0160] Return to Figure 1 Various aspects of this disclosure can be performed within the example wireless communication network 100.
[0161] In 3GPP, the term "cell" can refer to the coverage area of a Node B and / or the narrowband subsystem serving that coverage area, depending on the context in which the term is used. In NR systems, the term "cell" is used interchangeably with BS, Next Generation Node B (gNB or gNodeB), Access Point (AP), Distributed Unit (DU), carrier, or Transmit / Receive Point. A BS can provide communication coverage for macrocells, picocells, femtocells, and / or other cell types.
[0162] Macro cells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with service subscriptions. Pico cells cover a relatively small geographic area (e.g., a stadium) and allow unrestricted access by UEs with service subscriptions. Femto cells cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femto cell (e.g., UEs in a Closed Subscriber Group (CSG) and UEs for users in a residential area). A BS used for a macro cell can be referred to as a macro BS. A BS used for a pico cell can be referred to as a pico BS. A BS used for a femto cell can be referred to as a femto BS, a home BS, or a home node B.
[0163] BS 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with EPC 160 via a first backhaul link 132 (e.g., S1 interface). BS 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) can interface with 5GC 190 via a second backhaul link 184. BS 102 can communicate directly or indirectly with each other (e.g., via EPC 160 or 5GC 190) on a third backhaul link 134 (e.g., X2 interface). The third backhaul link 134 can typically be wired or wireless.
[0164] Small cell 102' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 102' can employ NR and use the same 5 GHz unlicensed spectrum as used by Wi-Fi AP 150. Small cell 102' employing NR in unlicensed spectrum can improve coverage of the access network and / or increase the capacity of the access network.
[0165] Some base stations (such as BS 180) can operate in conventional sub-6 GHz spectrum, millimeter wave (mmWave) frequencies, and / or near-mmWave frequencies to communicate with UE 104. When BS 180 (e.g., gNB) operates in mmWave or near-mmWave frequencies, BS 180 can be referred to as an mmWave base station.
[0166] The communication link 120 between BS 102 and, for example, UE 104 can be via one or more carriers. For example, BS 102 and UE 104 can use spectrum allocated in carrier aggregation for up to a total of Yx MHz (x component carriers) for transmission in each direction, with a bandwidth of up to Y MHz per carrier (e.g., 5, 10, 15, 20, 100, 400, and other MHz). Carriers can be adjacent to each other or can be non-adjacent. Carrier allocation can be asymmetrical with respect to DL and UL (e.g., more or fewer carriers can be allocated for DL compared to UL). Component carriers can include primary component carriers and one or more secondary component carriers. The primary component carrier can be referred to as the primary cell (PCell), and the secondary component carriers can be referred to as secondary cells (SCells).
[0167] The wireless communication network 100 also includes a Wi-Fi access point (AP) 150, which communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, unlicensed spectrum in the 2.4 GHz and / or 5 GHz range. When communicating in unlicensed spectrum, the STA 152 / AP 150 can perform a free channel assessment (CCA) before communication to determine whether the channel is available.
[0168] Some UEs 104 can communicate with each other using device-to-device (D2D) communication link 158. D2D communication link 158 can use DL / UL WWAN spectrum. D2D communication link 158 can use one or more sideline channels, such as the Physical Sideline Broadcast Channel (PSBCH), Physical Sideline Discovery Channel (PSDCH), Physical Sideline Shared Channel (PSSCH), and Physical Sideline Control Channel (PSCCH). D2D communication can be conducted through a wide variety of wireless D2D communication systems, such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, 4G (e.g., LTE), or 5G (e.g., NR), to name a few.
[0169] EPC 160 may include Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, Multimedia Broadcast Multicast Service (MBMS) Gateway 168, Broadcast Multicast Service Center (BM-SC) 170, and Packet Data Network (PDN) Gateway 172. MME 162 can communicate with Home Subscriber Server (HSS) 174. MME 162 is the control node that handles signaling between UE 104 and EPC 160. Typically, MME 162 provides bearer and connection management.
[0170] Typically, user Internet Protocol (IP) packets are transmitted through a serving gateway 166, which is itself connected to a PDN gateway 172. The PDN gateway 172 provides the UE with IP address allocation and other functions. The PDN gateway 172 and BM-SC 170 are connected to an IP service 176, which may include, for example, the Internet, an intranet, an IP Multimedia Subsystem (IMS), PS streaming services, and / or other IP services.
[0171] The BM-SC 170 provides functions for MBMS user service provisioning and delivery. The BM-SC 170 can act as an entry point for MBMS transmissions to content providers, authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and schedule MBMS transmissions. The MBMS Gateway 168 can distribute MBMS services to BS 102 belonging to a Multicast-Broadcast Single Frequency Network (MBSFN) area that broadcasts specific services, and can be responsible for session management (start / stop) and collecting billing information related to eMBMS.
[0172] 5GC 190 may include Access and Mobility Management Functions (AMF) 192, other AMFs 193, Session Management Functions (SMF) 194, and User Plane Functions (UPF) 195. AMF 192 may communicate with Unified Data Management (UDM) 196.
[0173] The AMF 192 is typically the control node that handles signaling between UE 104 and 5GC 190. Typically, the AMF 192 provides QoS flow and session management.
[0174] All user Internet Protocol (IP) packets are transmitted via UPF 195, which connects to IP service 197 and provides IP address allocation for the UE, as well as other functions for 5GC 190. IP service 197 may include, for example, the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and / or other IP services.
[0175] Return to Figure 2 It describes BS 102 and UE 104 (e.g., Figure 1 Various example components of the wireless communication network 100 can be used to implement various aspects of this disclosure.
[0176] At BS 102, the transmitting processor 220 can receive data from the data source 212 and control information from the controller / processor 240. The control information can be used on the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Common PDCCH (GC PDCCH), and other channels. In some examples, the data can be used on the Physical Downlink Shared Channel (PDSCH).
[0177] The Media Access Control (MAC)-Control Element (MAC-CE) is a MAC layer communication structure used for exchanging control commands between wireless nodes. MAC-CEs can be carried on shared channels such as the Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), or Physical Sidelink Shared Channel (PSSCH).
[0178] The transmitter processor 220 can process (e.g., encode and symbol map) data and control information separately to obtain data symbols and control symbols. The transmitter processor 220 can also generate reference symbols, such as those for the primary synchronization signal (PSS), secondary synchronization signal (SSS), PBCH demodulation reference signal (DMRS), and channel state information reference signal (CSI-RS).
[0179] The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on data symbols, control symbols, and / or reference symbols (if applicable), and can provide output symbol streams to the modulators (MODs) in transceivers 232a-232t. Each modulator in transceivers 232a-232t can process its own output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from the modulators in transceivers 232a-232t can be transmitted via antennas 234a-234t respectively.
[0180] At UE 104, antennas 252a-252r can receive downlink signals from BS 102 and can provide the received signals to demodulators (DEMODs) in transceivers 254a-254r respectively. Each demodulator in transceivers 254a-254r can adjust (e.g., filter, amplify, down-convert, and digitize) its respective received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM) to obtain received symbols.
[0181] MIMO detector 256 can obtain received symbols from all demodulators in transceivers 254a-254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 104 to data sink 260, and provide decoded control information to controller / processor 280.
[0182] On the uplink, at UE 104, the transmit processor 264 can receive and process data from data source 262 (e.g., for the Physical Uplink Shared Channel (PUSCH)) and control information from controller / processor 280 (e.g., for the Physical Uplink Control Channel (PUCCH)). The transmit processor 264 can also generate reference symbols for reference signals (e.g., for Sounding Reference Signals (SRS)). Symbols from the transmit processor 264 can be pre-encoded by the TX MIMO processor 266 (if applicable), further processed by modulators in transceivers 254a-254r (e.g., for SC-FDM), and transmitted to BS 102.
[0183] At BS 102, uplink signals from UE 104 can be received by antennas 234a-t, processed by demodulators in transceivers 232a-232t, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 104. Receiver processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240.
[0184] Memory 242 and 282 can store data and program code for BS 102 and UE 104, respectively.
[0185] Scheduler 244 can schedule UE to perform data transmission on downlink and / or uplink.
[0186] 5G can utilize Orthogonal Frequency Division Multiplexing (OFDM) with a cyclic prefix (CP) on both the uplink and downlink. 5G can also support half-duplex operation using Time Division Duplex (TDD). OFDM and Single-Carrier Frequency Division Multiplexing (SC-FDM) divide the system bandwidth into multiple orthogonal subcarriers, often referred to as tones and frequency bands. Data can be used to modulate each subcarrier. Modulation symbols are transmitted using OFDM in the frequency domain and SC-FDM in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers can depend on the system bandwidth. In some examples, the minimum resource allocation, called a resource block (RB), can be 12 consecutive subcarriers. The system bandwidth can also be divided into subbands. For example, a subband can cover multiple RBs. NR can support a basic subcarrier spacing (SCS) of 15 kHz and can define other SCSs (e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, and others) with respect to the basic SCS.
[0187] As mentioned above, Figure 3A , 3B 3C and 3D depict the use of wireless communication networks (such as...) Figure 1 Examples of various aspects of the data structure of the wireless communication network 100.
[0188] In various aspects, the 5G frame structure can be Frequency Division Duplex (FDD), where for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to either DL (Deep Flow) or UL (Ultra-Low Flow). The 5G frame structure can also be Time Division Duplex (TDD), where for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to both DL and UL. Figure 3A and Figure 3C In the provided example, the 5G frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (mostly DL), where D is DL, U is UL, and X is flexible between DL / UL, and subframe 3 is configured with slot format 34 (mostly UL). Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. The UE is configured with a slot format via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured via Radio Resource Control (RRC) signaling). Note that the following description also applies to the 5G frame structure as TDD.
[0189] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10 ms) can be divided into 10 equal-sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include micro-time slots, which may include 7, 4, or 2 symbols. In some examples, each time slot may include 7 or 14 symbols, depending on the time slot configuration.
[0190] For example, for slot configuration 0, each slot can include 14 symbols, while for slot configuration 1, each slot can include 7 symbols. Symbols on the DL can be Cyclic Prefix (CP) OFDM (CP-OFDM) symbols. Symbols on the UL can be CP-OFDM symbols (for high-throughput scenarios) or Discrete Fourier Transform (DFT) Extended OFDM (DFT-s-OFDM) symbols (also known as Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols) (for power-constrained scenarios; limited to a single stream).
[0191] The number of time slots within a subframe can be based on the time slot configuration and the digital scheme (numerology). For time slot configuration 0, different digital schemes (μ) 0 to 5 allow 1, 2, 4, 8, 16, and 32 time slots per subframe, respectively. For time slot configuration 1, different digital schemes 0 to 2 allow 2, 4, and 8 time slots per subframe, respectively. Accordingly, for time slot configuration 0 and digital scheme μ, there are 14 symbols / time slots and 2μ time slots / subframes. The subcarrier spacing and symbol length / duration are functions of the digital scheme. The subcarrier spacing can be equal to 2. μ ×15kHz, where μ represents digital schemes 0 through 5. Therefore, digital scheme μ = 0 has a subcarrier spacing of 15kHz, and digital scheme μ = 5 has a subcarrier spacing of 480kHz. The symbol length / duration is negatively correlated with the subcarrier spacing. Figure 3A , 3B Examples of the 3C and 3D models are provided: a slot configuration of 0 with 14 symbols per slot and a digital scheme of μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.
[0192] A resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also known as a physical RB (PRB)), which extends 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0193] like Figure 3A As shown, some REs in the RE carry information for the UE (e.g., Figure 1 and 2The reference (pilot) signal (RS) for UE 104. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as Rx for a specific configuration, where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).
[0194] Figure 3B Examples of various DL channels within a subframe of a frame are shown. The Physical Downlink Control Channel (PDCCH) carries the DCI within one or more Control Channel Elements (CCEs), each CCE comprising nine RE groups (REGs), each REG comprising four consecutive REs in an OFDM symbol.
[0195] The Primary Synchronization Signal (PSS) can be located within symbol 2 of a specific subframe of the frame. The PSS is controlled by UE 104 (e.g., Figure 1 and 2 104) is used to determine subframe / symbol timing and physical layer identifier.
[0196] The secondary synchronization signal (SSS) can be located within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identifier group number and radio frame timing.
[0197] Based on the Physical Layer Identifier and Physical Layer Cell Identifier Group Number, the UE can determine the Physical Cell Identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DM-RS. The Physical Broadcast Channel (PBCH) (which carries the Master Information Block (MIB)) can be logically grouped with the PSS and SSS to form a Synchronization Signal (SS) / PBCH block. The MIB provides the number of RBs in the system bandwidth and the System Frame Number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted via the PBCH (such as System Information Block (SIB)), and paging messages.
[0198] like Figure 3CAs shown, some REs in the REs carry DM-RS for channel estimation at the base station (indicated as R for a specific configuration, but other DM-RS configurations are possible). The UE can transmit DM-RS for the Physical Uplink Control Channel (PUCCH) and DM-RS for the Physical Uplink Shared Channel (PUSCH). PUSCH DM-RS can be transmitted in the first one or two symbols before the PUSCH. PUCCH DM-RS can be transmitted in different configurations depending on whether a short or long PUCCH is transmitted and the specific PUCCH format used. The UE can transmit a Sounding Reference Signal (SRS). SRS can be transmitted in the last symbol of a subframe. SRS can have a comb structure, and the UE can transmit SRS on one of these combs. SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.
[0199] Figure 3D Examples of various UL channels within a subframe of a frame are shown. The PUCCH can be positioned as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and can also be used to carry buffer status reports (BSR), power headroom reports (PHR), and / or UCI.
[0200] Additional considerations
[0201] The foregoing description provides examples of power control parameters for uplink channels and / or reference signals in a communication system for sharing the same common TCI state. The foregoing description is provided to enable any person skilled in the art to implement the various aspects described herein. The examples discussed herein are not limited to the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. For example, changes may be made to the function and arrangement of the elements discussed without departing from the scope of this disclosure. Various processes or components may be omitted, substituted, or added as appropriate in the various examples. For example, the described methods may be performed in a different order than that described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined with some other examples. For example, an apparatus or a method may be implemented using any number of aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.
[0202] The techniques described in this article can be used in various wireless communication technologies, such as 5G (e.g., 5G NR), 3GPP Long Term Evolution (LTE), Improved LTE (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms "network" and "system" are often used interchangeably. CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, and others. UTRA includes Wideband CDMA (WCDMA) and other variations of CDMA. cdma2000 covers the IS-2000, IS-95, and IS-856 standards. TDMA networks can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA networks can implement radio technologies such as NR (e.g., 5G RA), evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, and others. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are versions of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). cdma2000 and UMB are described in documents from an organization called the 3rd Generation Partnership Project 2 (3GPP2). NR is an emerging wireless communication technology currently being deployed.
[0203] The various illustrative logic blocks, modules, and circuits described in connection with this disclosure can be implemented or executed using a general-purpose processor, DSP, ASIC, field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, a system-on-a-chip (SoC), or any other such configuration.
[0204] If implemented in hardware, an example hardware configuration could include a processing system within a wireless node. The processing system could utilize a bus architecture. Depending on the specific application and overall design constraints of the processing system, the bus could include any number of interconnect buses and bridges. The bus could link together various circuitry, including a processor, machine-readable media, and a bus interface. Furthermore, the bus interface could be used to connect a network adapter to the processing system via the bus. The network adapter could be used to implement signal processing functions at the PHY layer. In user equipment (see...) Figure 1 In the case of a user interface (e.g., keypad, display, mouse, joystick, touchscreen, biometric sensor, proximity sensor, light-emitting element, etc.), it can also be connected to the bus. The bus can also link various other circuits such as timing sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and therefore will not be described further. The processor can be implemented using one or more general-purpose and / or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Those skilled in the art will recognize how the functions described for the processing system can be optimally implemented based on the specific application and the overall design constraints imposed on the system as a whole.
[0205] If implemented in software, the functionality can be stored or transmitted as one or more instructions or code on or through a computer-readable medium. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other terms, software should be broadly interpreted to mean instructions, data, or any combination thereof. Computer-readable media includes both computer storage media and communication media, with communication media encompassing any medium that facilitates the transfer of a computer program from one place to another. The processor may be responsible for managing the bus and general-purpose processing, including executing software modules stored on the machine-readable storage medium. The computer-readable storage medium may be coupled to the processor so that the processor can read information from and write information to the storage medium. Alternatively, the storage medium may be an integral part of the processor. For example, the machine-readable medium may include a transmission line, a carrier wave modulated by data, and / or a separate computer-readable storage medium containing instructions stored thereon, all accessible to the processor via a bus interface. Alternatively or additionally, the machine-readable medium or any portion thereof may be integrated into the processor; for example, this could be a cache and / or a general-purpose register file. For example, examples of machine-readable storage media may include RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), registers, disks, optical disks, hard drives, or any other suitable storage media, or any combination thereof. Machine-readable media may be embodied in a computer program product.
[0206] Software modules may include a single instruction or many instructions, and may be distributed across several different code segments, within different programs, and across multiple storage media. Computer-readable media may include multiple software modules. A software module includes instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include sending modules and receiving modules. Each software module may reside in a single storage device or be distributed across multiple storage devices. For example, when a triggering event occurs, a software module may be loaded from a hard drive into RAM. During the execution of a software module, the processor may load some of the instructions into a cache to increase access speed. One or more cache lines may then be loaded into a general-purpose register file for execution by the processor. It will be understood that when the functionality of a software module is referred to below, this functionality is implemented by the processor when executing the instructions from that software module.
[0207] As used in this article, the phrase “at least one of” in a list of items refers to any combination of those items, including a single member. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination with multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).
[0208] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" can include calculation, operation, processing, derivation, investigation, lookup (e.g., searching in a table, database, or other data structure), ascertainment, and so on. Furthermore, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), and so on. Additionally, "determine" can include parsing, selecting, choosing, establishing, and so on.
[0209] The methods disclosed herein include one or more steps or actions for implementing the methods. These method steps and / or actions may be interchanged with each other without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of a particular step and / or action may be modified without departing from the scope of the claims. Furthermore, the various operations of the methods described above can be performed by any suitable unit capable of performing the corresponding function. These units may include various hardware and / or software components and / or modules, including but not limited to: circuits, application-specific integrated circuits (ASICs), or processors. Typically, in the presence of operations as shown in the figures, those operations may have corresponding paired units plus functional components with similar numbering.
[0210] The following claims are not intended to be limited to the aspects shown herein, but are given the full scope consistent with the wording of the claims. Within the claims, unless expressly stated otherwise, references to elements in the singular form are not intended to mean “one and only one,” but rather “one or more.” Unless expressly stated otherwise, the term “some” refers to one or more. No claim element is to be interpreted pursuant to 35 U.S.SC §112(f) unless it is expressly referred to as “a unit for…” or, in the case of a method claim, as “a step for…”. All structural and functional equivalents of elements throughout the various aspects described in this disclosure are expressly incorporated herein by reference and intended to be included by the claims, and are known or to be known by those skilled in the art. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is expressly stated in the claims.
Claims
1. A method for wireless communication, comprising: Measure the path loss at the user equipment; Receive multiple power control configurations from the network, including: Each of the plurality of power control configurations includes a plurality of corresponding power control parameters. Each of the plurality of power control configurations is applicable to the corresponding uplink channel or reference signal object; Each corresponding uplink channel or reference signal object is associated with a Common Transport Configuration Indication (TCI) state, wherein at least a subset of the corresponding power control parameters for each power control configuration is provided for each TCI state; and At least one of the plurality of power control configurations is configured based on: an uplink beam reference signal configured for a corresponding common TCI state associated with the at least one power control configuration, and an RRC flag in a Radio Resource Control (RRC) message received by the user equipment; and At least one uplink channel or reference signal object is transmitted based on the measured path loss and the transmission power of at least one of the power control configurations in the plurality of power control configurations.
2. The method according to claim 1, wherein, Each of the plurality of power control configurations depends on the corresponding uplink channel or reference signal object associated with that corresponding power control configuration.
3. The method according to claim 2, wherein, Each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding uplink channel or reference signal object to which the corresponding power control configuration applies.
4. The method according to claim 2, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration applies, and For each of the plurality of power control configurations, a pre-configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
5. The method according to claim 2, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding uplink channel or reference signal object to which the corresponding power control configuration applies, and For each of the plurality of power control configurations, a dynamically configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding uplink channel or reference signal object associated with the corresponding power control configuration.
6. The method according to claim 5, further comprising: One or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) are received from the network, wherein the one or more MAC-CE or DCI is configured to dynamically link the IE associated with each of the plurality of power control configurations with the IE associated with the corresponding uplink channel or reference signal object to which the corresponding power control configuration applies.
7. The method according to claim 1, wherein, Each of the plurality of power control configurations depends on a corresponding common TCI state associated with that power control configuration among a plurality of common TCI states.
8. The method according to claim 7, wherein, Each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
9. The method according to claim 7, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the corresponding power control configuration, and For each of the plurality of power control configurations, a pre-configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
10. The method according to claim 7, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the corresponding power control configuration, and For each of the plurality of power control configurations, a dynamically configured relationship is used to associate the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
11. The method of claim 10, further comprising: One or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) are received from the network, wherein the one or more MAC-CE or DCI is configured to dynamically associate the IE of each of the plurality of power control configurations with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
12. The method according to claim 1, wherein, Each of the multiple power control configurations depends on: The corresponding uplink channel or reference signal object associated with the corresponding power control configuration; as well as The corresponding common TCI state associated with the corresponding power control among multiple common TCI states.
13. The method according to claim 12, wherein, Each of the plurality of power control configurations is configured in the same information element (IE) as the corresponding common TCI state associated with the corresponding power control configuration.
14. The method according to claim 12, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the corresponding power control configuration, and For each of the plurality of power control configurations, a pre-configured relationship associates the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
15. The method according to claim 12, wherein: Each of the plurality of power control configurations is configured in an information element (IE) that is different from the corresponding common TCI state associated with the corresponding power control configuration, and For each of the plurality of power control configurations, a dynamically configured relationship is used to associate the IE of the corresponding power control configuration with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
16. The method of claim 15, further comprising: One or more Media Access Control (MAC-CE) or Downlink Control Information (DCI) are received from the network, wherein the one or more MAC-CE or DCI is configured to dynamically associate the IE of each of the plurality of power control configurations with the IE of the corresponding common TCI state associated with the corresponding power control configuration.
17. The method according to claim 1, wherein: Each corresponding uplink channel or reference signal object defines the physical uplink channel type for the corresponding uplink channel or reference signal object, and The physical uplink channel type is one of the following: sounding reference signal (SRS), physical uplink control channel (PUCCH), or physical uplink shared channel (PUSCH).
18. The method according to claim 1, wherein: Each corresponding uplink channel or reference signal object defines the physical uplink resources for the corresponding uplink channel or reference signal object, and The physical uplink resource is either a sounding reference signal (SRS) resource or a physical uplink control channel (PUCCH) resource.
19. The method according to claim 1, wherein: Each corresponding uplink channel or reference signal object defines a set of physical uplink resources for the corresponding uplink channel or reference signal object, and The physical uplink resource set is one of the sounding reference signal (SRS) resource set or the physical uplink control channel (PUCCH) resource set.
20. The method according to claim 1, wherein, The common TCI status indicates the common TCI status for at least one downlink channel or reference signal object and at least one uplink channel or reference signal object.
21. The method according to claim 1, wherein, The common TCI state indication is used for the common TCI state of at least the first uplink channel or reference signal object and the second uplink channel or reference signal object.
22. An apparatus for wireless communication, comprising: Memory, which includes executable instructions; as well as One or more processors coupled to the memory are configured to execute the executable instructions and cause the device to perform the method of any one of claims 1 to 21.
23. A non-transitory computer-readable medium comprising: Executable instructions, when executed by one or more processors of the device, cause the device to perform the method described in any one of claims 1 to 21.
Citation Information
Patent Citations
Method for Controlling Uplink Power in a Wireless Communication System and Apparatus Therefor
US20200383060A1