Systems and methods for power control for uplink only transmission reception points using transmission power control commands
The implementation of pathloss offset values and closed-loop power control mechanisms in DCI formats addresses inefficiencies in power management for uplink-only TRPs, enhancing communication reliability and efficiency in asymmetric mTRP deployments.
Patent Information
- Application Number
- PCT/US2024/041070
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2026-02-12
AI Technical Summary
Existing wireless communication systems face challenges in efficiently managing power control for uplink-only transmission reception points (TRPs) in asymmetric deployments, particularly in scenarios where some TRPs transmit and receive signals while others only transmit or receive, leading to inefficiencies in power management and communication protocols.
Implementing pathloss offset values in DCI formats and closed-loop power control mechanisms to adjust transmission power for PRACH and SRS transmissions to UL-only TRPs, using unified TCI frameworks and quasi-colocation rules, and configuring DCI formats to manage power control without carrier switching, ensuring separate power control states for SRS and PUSCH transmissions.
Enhances power control accuracy and efficiency in asymmetric mTRP deployments, improving communication reliability and reducing interference by optimizing power management for UL-only TRPs.
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Figure US2024041070_12022026_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS FOR POWER CONTROL FOR UPLINK ONLY TRANSMISSION RECEPTION POINTS USING TRANSMISSION POWER CONTROL COMMANDS TECHNICAL FIELD
[0001] This application relates generally to wireless communication systems, including wireless communication systems using asymmetric multiple transmission reception point deployments. BACKGROUND
[0002] Wireless mobile communication technology uses various standards and protocols to transmit data between a base station and a wireless communication device. Wireless communication system standards and protocols can include, for example, 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) (e.g., 4G), 3GPP New Radio (NR) (e.g., 5G), and Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard for Wireless Local Area Networks (WLAN) (commonly known to industry groups as Wi-Fi®).
[0003] As contemplated by the 3GPP, different wireless communication systems' standards and protocols can use various radio access networks (RANs) for communicating between a base station of the RAN (which may also sometimes be referred to generally as a RAN node, a network node, or simply a node) and a wireless communication device known as a user equipment (UE). 3GPP RANs can include, for example, Global System for Mobile communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE) RAN (GERAN), Universal Terrestrial Radio Access Network (UTRAN), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), and / or Next-Generation Radio Access Network (NG-RAN).
[0004] Each RAN may use one or more radio access technologies (RATs) to perform communication between the base station and the UE. For example, the GERAN implements GSM and / or EDGE RAT, the UTRAN implements Universal Mobile Telecommunication System (UMTS) RAT or other 3GPP RAT, the E-UTRAN implements LTE RAT (sometimes simply referred to as LTE), and NG-RAN implements NR RAT (sometimes referred to herein as 5G RAT, 5G NR RAT, or simply NR). In1 4896-2109-2309\1 P68919WO2certain deployments, the E-UTRAN may also implement NR RAT. In certain deployments, NG-RAN may also implement LTE RAT.
[0005] A base station used by a RAN may correspond to that RAN. One example of an E-UTRAN base station is an Evolved Universal Terrestrial Radio Access Network (E- UTRAN) Node B (also commonly denoted as evolved Node B, enhanced Node B, eNodeB, or eNB). One example of an NG-RAN base station is a next generation Node B (also sometimes referred to as a g Node B or gNB).
[0006] A RAN provides its communication services with external entities through its connection to a core network (CN). For example, E-UTRAN may utilize an Evolved Packet Core (EPC) while NG-RAN may utilize a 5G Core Network (5GC).
[0007] Frequency bands for 5G NR may be separated into two or more different frequency ranges. For example, Frequency Range 1 (FR1) may include frequency bands operating in sub-6 gigahertz (GHz) frequencies, some of which are bands that may be used by previous standards, and may potentially be extended to cover new spectrum offerings from 410 megahertz (MHz) to 7125 MHz. Frequency Range 2 (FR2) may include frequency bands from 24.25 GHz to 52.6 GHz. Note that in some systems, FR2 may also include frequency bands from 52.6 GHz to 71 GHz (or beyond). Bands in the millimeter wave (mmWave) range of FR2 may have smaller coverage but potentially higher available bandwidth than bands in FR1. Skilled persons will recognize these frequency ranges, which are provided by way of example, may change from time to time or from region to region. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0008] To easily identify the discussion of any particular element or act, the most significant digit or digits in a reference number refer to the figure number in which that element is first introduced.
[0009] FIG. 1 illustrates examples of each of a symmetric mTRP deployment and an asymmetric mTRP deployment.
[0010] FIG. 2 illustrates a diagram for the use of a pathloss offset field with a pathloss offset table known to a UE, according to embodiments herein.
[0011] FIG. 3 illustrates a diagram for the use of a DCI for adjusting power control adjustment values for a configured CC set, according to embodiments discussed herein.2 4896-2109-2309\1 P68919WO2
[0012] FIG. 4 illustrates a first option and a second option for (e.g., portions of) DCI that may be used in cases where a closed loop power control mechanism at a UE uses a plurality power control adjustment values.
[0013] FIG. 5 illustrates an SRS-TPC-CommandConfig IE as may be used in some existing wireless communication systems.
[0014] FIG. 6 illustrates an SRS-TPC-CommandConfig IE as may be used in wireless communication systems according to embodiments discussed herein.
[0015] FIG. 7 illustrates a first option and a second option for using an SRS TPC field in cases where a closed loop power control mechanism at a UE uses a plurality power control adjustment values.
[0016] FIG. 8 illustrates a method of a UE, according to embodiments discussed herein.
[0017] FIG. 9 illustrates a method of a base station, according to embodiments discussed herein.
[0018] FIG. 10 illustrates a method of a UE, according to embodiments discussed herein.
[0019] FIG. 11 illustrates a method of a base station, according to embodiments discussed herein.
[0020] FIG. 12 illustrates a method of a UE, according to embodiments discussed herein.
[0021] FIG. 13 illustrates a method of a base station, according to embodiments discussed herein.
[0022] FIG. 14 illustrates an example architecture of a wireless communication system, according to embodiments disclosed herein.
[0023] FIG. 15 illustrates a system for performing signaling between a wireless device and a network device, according to embodiments disclosed herein. DETAILED DESCRIPTION
[0024] Various embodiments are described with regard to a UE. However, reference to a UE is merely provided for illustrative purposes. The example embodiments may be utilized with any electronic component that may establish a connection to a network and is configured with the hardware, software, and / or firmware to exchange information and3 4896-2109-2309\1 P68919WO2data with the network. Therefore, the UE as described herein is used to represent any appropriate electronic component.
[0025] A transmission reception point (TRP) is an element of a wireless communication system that transmits and / or receives signals (e.g., to and / or from a UE). Various wireless communication systems may support one or more of various mechanisms for multiple TRP (mTRP) operation.
[0026] For example, one or more of various single downlink control information (DCI) mTRP schemes may be used in a wireless communication system. Such single DCI mTRP schemes may include spatial domain multiplexing (SDM)-based schemes, frequency division multiplexing (FDM)-based schemes, time division multiplexing (TDM)-based schemes, etc.
[0027] As another example, one or more multiple DCI (multi-DCI) mTRP schemes may be used in a wireless communication system.
[0028] As another example, a wireless communication system may support inter-cell mTRP mechanisms.
[0029] As another example, a wireless communication system may support channel state information (CSI) aspects, Type I codebook aspects, and / or aspects for non- coherent joint transmission (NCJT) with SDM single-DCI mTRP use.
[0030] As another example, a wireless communication system may support physical uplink shared channel (PUSCH) repetition for mTRP operation, physical uplink control channel (PUCCH) repetition for mTRP operation, and / or physical downlink control channel (PDCCH) repetition for mTRP operation.
[0031] As another example, a wireless communication system may support an mTRP single frequency network (SFN) scheme for PDCCH and / or physical downlink shared channel (PDSCH) for high speed train (HST) use cases.
[0032] As another example, a wireless communication system may support a unified transmission configuration indicator (TCI) framework that supports mTRP operation.
[0033] As another example, a wireless communication system may support a downlink (DL) coherent joint transmission (CJT) scheme for use with a unified TCI framework.
[0034] As another example, a wireless communication system may support CSI aspects, Type II codebook aspects, and / or aspects for enhancement for CJT with multiple (e.g., up to four) TRPs.4 4896-2109-2309\1 P68919WO2
[0035] As another example, a wireless communication system may support simultaneous transmission cross multiple panels (STxMP) uses for PUSCH for both / each of single-DCI cases (e.g., SDM and SFN) and multi-DCI cases.
[0036] As another example, a wireless communication system may support STxMP uses for PUCCH with SFN.
[0037] FIG. 1 illustrates examples of each of a symmetric mTRP deployment 102 and an asymmetric mTRP deployment 104. In a symmetric mTRP deployment, a UE communicates with all TRPs in both uplink (UL) and DL directions. For example, in the symmetric mTRP deployment 102, a UE 106 communicates with each of a first TRP 108 and a second TRP 110 using both UL and DL, as illustrated.
[0038] In an asymmetric mTRP deployment, one or more TRP(s) may communicate with the UE in only one of UL or DL (e.g., only UL or only DL). For example, in the asymmetric mTRP deployment 104, as illustrated, a first TRP 114 communicates with a UE 112 using UL and DL. However, the second TRP 116 communicates with a UE 112 in UL but not in DL. As the UE 112 of the asymmetric mTRP deployment 104 communicates in DL with only a single TRP (sTRP) (the first TRP 114), the asymmetric mTRP deployment 104 accordingly represents an example of an asymmetric DL sTRP / UL mTRP deployment case.
[0039] Embodiments discussed herein may be applied in order to enhance system behavior in asymmetric DL sTRP / UL mTRP deployment scenarios. Such embodiments may include intra-band, intra-distributed-unit (intra-DU), non-co-located mTRP scenarios which use existing cell definitions and do not use a new / second cell (e.g., do not use a separate UL-only cell in place of / instead of an UL-only TRP). Such cases may use a unified TCI framework and quasi-colocation (QCL) / UL spatial relation rules. Such cases may target FR1 and / or FR2.
[0040] Within various embodiments discussed herein, it may be that two closed-loop power control adjustment states for sounding reference signal (SRS) transmission are maintained at the UE, and these power control adjustment states for SRS may be separate from any power control adjustment states maintained at the UE for PUSCH transmission. Further, it may be understood that pathloss offset configurations for pathloss calculations for transmission to UL TRP(s) where the pathloss reference signals is received from the DL sTRP are used at the UE.5 4896-2109-2309\1 P68919WO2
[0041] Embodiments discussed herein relate to physical random access channel (PRACH) enhancements for asymmetric mTRP deployment scenarios (e.g., asymmetric DL sTRP / UL mTRP deployment scenarios).
[0042] Embodiments discussed herein relate to DCI format 2_3 usage enhancements for asymmetric mTRP deployment scenarios (e.g., asymmetric DL sTRP / UL mTRP deployment scenarios).
[0043] Embodiments discussed herein relate to unicast scheduling DCI (e.g., of format 0_1 and / or 1_1) enhancement usage enhancements for asymmetric mTRP deployment scenarios (e.g., asymmetric DL sTRP / UL mTRP deployment scenarios). Embodiments for Power Control for PRACH Transmissions
[0044] In some wireless communication systems, a PDCCH-order that triggers a PRACH may be used. In such cases, the PRACH may be triggered by a DCI (e.g., of format 1_0) within the PDCCH-order. For example, in some cases (e.g., for a DCI of format 1_0), if the cyclic redundancy check (CRC) of the DCI is scrambled by a cell radio network temporary identifier (C-RNTI) and the bits of a frequency domain resource assignment field of the DCI are all ones, the UE understands that the DCI of format 1_0 is for random access procedure initiated by a PDCCH order (that the DCI triggers the PRACH).
[0045] In various wireless communication systems, a formula for PRACH power control used by the UE may be PPRACHb,f,c(i) = min{PCMAX,f,c(i), PPRACH,target,f,c+ PLb,f,c} [dBm] where: PPRACHb,f,c(i) is the transmission power used by the UE for the PRACH transmission; PCMAX,f,c(i) is a UE-configured maximum output power for carrier f of cell c within transmission occasion i; PPRACH,target,f,cis a PRACH target reception power provided by higher layers; and6 4896-2109-2309\1 P68919WO2PLb,f,c is a pathloss for the active UL bandwidth part (BWP) b of carrier f based on a DL reference signal associated with the PRACH transmission on an active DL BWP of cell c.
[0046] Corresponding to embodiments herein that support the use of the UL-only TRP in the case of a PDCCH-order triggered PRACH transmission, the network may use a PRACH-triggering DCI of the PDCCH order to indicate a pathloss offset value to the UE. This pathloss offset value is then used by the UE as part of its power control for the PRACH transmission. Such a pathloss offset value as provided in the PRACH-triggering DCI may be denoted herein as ΔPL.
[0047] For example, once a pathloss offset value ΔPL is determined by the UE using the PRACH-triggering DCI, the UE may then calculate a transmission power for a PRACH transmission to the UL-only TRP using PPRACHb,f,c(i) = min{PCMAX,f,c(i), PPRACH,target,f,c + PLb,f,c + ΔPL} [dBm].
[0048] It may be that a pathloss offset field used to indicate a pathloss offset value ΔPL to the UE is included in the DCI. For example, the wireless communication system may be configured use such a pathloss offset field in a DCI of format 1_0 and in cases where the DCI is scrambled by a C-RNTI and the bits of a frequency domain resource assignment field of the DCI are all ones.
[0049] In some embodiments, the DCI uses the pathloss offset field to directly indicate the pathloss offset value.
[0050] In some embodiments, the DCI indicates the pathloss offset value by including an index for a pathloss offset table in a pathloss offset field. The pathloss offset table includes a list of possible pathloss offset values are configured at the UE. The UE then determines the indicated ΔPLby applying the index with the table.
[0051] FIG. 2 illustrates a diagram 200 for the use of a pathloss offset field 202 with a pathloss offset table 204 known to a UE, according to embodiments herein. As illustrated, the UE receives a DCI having the pathloss offset field 202. An index found in the pathloss offset field 202 is then applied with the pathloss offset table 204 having one or more pathloss offset values (e.g., the first pathloss offset value 206, the second pathloss offset value 208, the third pathloss offset value 210, …, the N-1thpathloss offset value 212) to identify the one of these pathloss offset values to use to determine a transmission power for a PRACH transmission (e.g., to an UL-only TRP).7 4896-2109-2309\1 P68919WO2
[0052] In some cases for the use of a pathloss offset table, the pathloss offset table is hardcoded to the UE (e.g., per a specification for the wireless communication system).
[0053] In some cases for the use of a pathloss offset table, the pathloss offset table may be configured to the UE by the network. For example, radio resource control (RRC) signaling from the network to the UE may perform this configuration. The table configuration may be included in the RRC signaling in any of, for example, a RACH- ConfigCommon information element (IE), a RACH-ConfigDedicated IE, and / or a RACH- ConfigGeneric IE.
[0054] In some cases, the DCI indicates the pathloss offset value using an indication of a synchronization signal block (SSB).
[0055] For example, it may be understood that (e.g., unique) pathloss offset values correspond to possible SSBs that may be identified using a synchronization signal / physical broadcast channel (SS / PBCH) index field (e.g., that includes an index of the identified SSB) of a DCI that is used to determine a random access channel (RACH) occasion for a PRACH transmission (e.g., when the value of a random access preamble index field is not all zeros). A pathloss offset value for use may be understood to be linked to the SSB identified in this field. The identification of an SSB in this field is thus understood to indicate a corresponding pathloss offset value for use. In some cases, the SS / PBCH index field may use 6 bits to indicate an SSB.
[0056] In some cases, for each SSB, the network can configure the corresponding pathloss offset for use with the PDCCH-order-triggered PRACH transmission (e.g., via RRC signaling). In some such cases, the network may further use a medium access control control element (MAC CE) to modify a pathloss offset corresponding to an SSB index.
[0057] As another example, it may be understood that pathloss offset values corresponding to each SSB are derived from the unified TCI states associated with those SSBs. In such cases, if an SSB is a quasi-colocation (QCL) source (e.g., direct or indirect) of a unified TCI state (e.g., either a joint or an UL unified TCI state), and if the unified TCI state is associated with a pathloss offset value, then an identification of the SSB by the DCI (e.g., in an SS / PBCH index field) may be understood by the UE to indicate the pathloss offset value of that SSB's associated unified TCI state for use.
[0058] Note that corresponding to such examples, the UE may use a fixed pathloss offset value in the event that there is no TCI state associated to the indicated SSB, or8 4896-2109-2309\1 P68919WO2where the TCI state associated to the indicated SSB does not include a pathloss offset value. This fixed value may be, for example, zero. Alternatively, the fixed value may be configured to the UE by RRC signaling. Embodiments of DCI for Adjusting Power Control Adjustment Values for Configured Component Carrier Sets
[0059] In various wireless communication systems, a DCI of format 2_3 may be used for SRS closed loop power control. In various cases, such a DCI may also (simultaneously) trigger aperiodic SRS transmission by the UE (e.g., cases for an UL without PUCCH and PUSCH and / or an UL on which SRS power control is not tied with PUSCH power control).
[0060] In various systems, a DCI of format 2_3 may be used for the transmission of a group of transmission power control (TPC) commands for SRS transmissions to be performed in UL by one or more UEs. In such cases, in addition to a TPC command, an SRS request may also be transmitted. Corresponding to such cases, a DCI of format 2_3 having a CRC scrambled by a transmission power control sounding reference signal radio network temporary identifier (TPC-SRS-RNTI) may include a number B of one or more blocks (e.g., block number 1, block number 2, …, block number B), where the starting position of a block is determined by the parameter (e.g., a startingBitOfFormat2- 3 parameter or a startingBitOfFormat2-3SUL-v1530 parameter) provided by higher layers to the UE configured to use the block.
[0061] Embodiments described herein relate to the support of power control for SRS transmissions to UL-only TRPs using DCI (e.g., of format 2_3) when SRS power control is not tied with PUSCH power control and / or when the UE is configured with two closed loop power control adjustment states for SRS.
[0062] In some embodiments for the use of DCI (e.g., of format 2_3) for power control for SRS transmission to an UL-only TRP, it may be that the DCI is used to adjust a closed loop power control for SRS without the use of SRS carrier switching. Note that according to some wireless communication systems, a DCI of format 2_3 may be configured by the network to the UE using an SRS-CarrierSwitching IE. Accordingly, to facilitate the use of power control adjustment without using SRS carrier switching, it may be that a definition for an srs-SwitchFromCarrier ENUMERATED {sUL, nUL}9 4896-2109-2309\1 P68919WO2field as may be used in the SRS-CarrierSwitching IE may be understood to be optional. This enables the SRS-CarrierSwitching IE to be sent to the UE to configure the DCI of formal 2_3 without triggering an SRS carrier switching event (e.g., by omitting the srs-SwitchFromCarrier field).
[0063] Additionally, for these cases, it may be that the network configures the UE with a component carrier (CC) set for which DCI indicating that a use of aperiodic SRS transmission is not triggered can provide transmission power control (TPC) commands to adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set.
[0064] For example, in wireless communication systems that configure the use of DCI of format 2_3 using an SRS-CarrierSwitching IE, this CC set may be configured using a particular value of cc-SetIndex as found within an SRS-CC-SetIndex IE of an SRS-TPC- PDCCH-Config IE of the SRS-CarrierSwitching IE. Note that the cc-SetIndex value may be configured for use where, for example, Type A association is used (e.g., when an srs- TPC-PDCCH-Group configuration by higher layers is set to “typeA”). Corresponding to some such cases, a cc-SetIndex value of “3” may be used to configure this CC set, and / or the SRS request field of all zeros may be linked to cc-SetIndex = 3.
[0065] Then, the network may send the UE a DCI of format 2_3 as previously configured. If this DCI does not trigger the use of aperiodic SRS transmission (e.g., if an SRS request field of the DCI is set to all zeros), then the UE uses one or more TPC commands from the DCI format 2_3 for SRS power control to adjust one or more power control adjustment values used by the UE for SRS transmission power calculation. The DCI may indicate one of the cc-SetIndex = 3 CCs to which its TPC command is to be applied.
[0066] In some embodiments discussed herein, when the UE is configured with a higher layer parameter srs-TPC-PDCCH-Group = typeA for an UL without PUCCH and PUSCH or for an UL on which the SRS power control is not tied with PUSCH power control, one or two block(s) of a DCI (e.g., of format 2_3) may be configured for the UE by higher layers. In some cases, one of the block(s) corresponds to supplemental UL (SUL), while another of the block(s) corresponds to normal uplink (NUL).
[0067] The blocks may contain various fields. These fields may include an SRS request field. The SRS request field may be of 0 or 2 bits. The SRS request field may indicate to the UE that aperiodic SRS transmission is not triggered (e.g., when set to all zeros).10 4896-2109-2309\1 P68919WO2
[0068] These fields may further include one or more TPC commands (e.g., TPC command number 1, TPC command number 2, ..., TPC command number N) for adjusting power control adjustment values. In such cases, each TPC command applies to a respective UL carrier provided by a higher layer parameter (e.g., a cc-IndexInOneCC- Set parameter).
[0069] FIG. 3 illustrates a diagram 300 for the use of a block 302 of a DCI for adjusting power control adjustment values for a configured CC set 304, according to embodiments discussed herein. The DCI may be of a format 2_3.
[0070] As illustrated, the block 302 includes an SRS request field 306 and the first TPC command 308, the second TPC command 310, and the third TPC command 312. The SRS request field 306 may relate a value of all zeros (as shown), thereby indicating to the UE that the block 302 does not trigger an SRS transmission.
[0071] The CC set 304 includes the first CC 314 (CC 0), the second CC 316 (CC 1), and the third CC 318 (CC 2). As illustrated, this CC set 304 has been configured corresponding to / using the value cc-SetIndex = 3. This informs the UE that DCI that indicate SRS transmission is not triggered may provide TPC commands that adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set 304.
[0072] As configured, he first CC 314 corresponds to a cc-IndexInOneCC-Set value of 0, the second CC 316 corresponds to a cc-IndexInOneCC-Set value of 1, and the third CC 318 corresponds to a cc-IndexInOneCC-Set value of 2, as illustrated.
[0073] Each of the TPC commands in the block 302 of the DCI corresponds to a different CC of the CC set 304. The UE determines that first TPC command 308 in the block 302 corresponds to the first CC 314 due to the correspondence of the first CC 314 to the cc-IndexInOneCC-Set value of 0. Accordingly, the first TPC command 308 is used to adjust a power control adjustment value for SRS transmission for use on the first CC 314
[0074] Further, the UE determines second TPC command 310 in the block 302 of the DCI corresponds to the second CC 316 due to the correspondence of the second CC 316 to the cc-IndexInOneCC-Set value of 1. Accordingly, the first TPC command 308 is used to adjust a power control adjustment value for SRS transmission for use on the second CC 316.11 4896-2109-2309\1 P68919WO2
[0075] Finally, the UE determines that the third TPC command 312 in the block 302 of the DCI corresponds to the third CC 318 due to the correspondence of the third CC 318 to the cc-IndexInOneCC-Set value of 2. Accordingly, the first TPC command 308 is used to adjust a power control adjustment value for SRS transmission for use on the third CC 318.
[0076] In some embodiments relating to the use of DCI (e.g., of format 2_3) for power control for SRS transmission to an UL-only TRP, when SRS power control is not tied with PUSCH power control, it may be that the UE is configured with a closed loop power control mechanism that acts to select one of a plurality (e.g., two) power control adjustment values at the UE for adjustment and / or use for calculating an SRS transmission power, as the case may be.
[0077] Corresponding to such cases, the UE receiving the DCI for power control for SRS transmission as described may be configured to use DCI to map a TPC command from the DCI to a correct (e.g., network-intended) one of the plurality of power control adjustment values.
[0078] FIG. 4 illustrates a first option 402 and a second option 404 for (e.g., portions of) DCI that may be used in cases where a closed loop power control mechanism at a UE uses a plurality power control adjustment values. Under the first option 402, an index 406 provided in the DCI is understood to correspond to a TPC command 408 that is (also) found in the DCI.
[0079] The index 406 may be of a single bit. The TPC command 408 may be of two bits. Accordingly, the first option 402 may be understood to use three bits. Note that the particular bit widths of the index 406 and / or the TPC command 408 in the illustrated first option 402 are given by way of example and not by way of limitation.
[0080] Corresponding to first option 402, the index 406 may be understood as a closed loop index that indicates one of two power control adjustment values at the UE. Thus, when the index 406 indicates a first value (e.g., 0), the UE understands that the TPC command 408 is meant to be applied to adjust a first power control adjustment value used by the UE. When the index 406 instead indicates a second value (e.g., 1), the UE understands that the TPC command 408 is instead meant to be applied to adjust a second power control adjustment value used by the UE.
[0081] Under the second option 404, the DCI includes a TPC command 410 and a TPC command 412. Each of the TPC command 410 and the TPC command 412 may be two12 4896-2109-2309\1 P68919WO2bits in some embodiments. Accordingly, the second option 404 may be understood to use four bits. Note that the particular bit widths of the TPC command 410 and / or the TPC command 412 in the illustrated second option 404 are given by way of example and not by way of limitation.
[0082] In the second option 404, the UE may understand, based on their locations within the DCI (e.g., relative to each other within the DCI), that the TPC command 410 is to be used to adjust a first power control adjustment value used by the UE (e.g., corresponding to closed loop index 0), while the TPC command 412 is to be used to adjust a second power control adjustment value used by the UE (e.g., corresponding to closed loop index 1).
[0083] In some embodiments relating to the use of DCI (e.g., of format 2_3) for power control for SRS transmission to an UL-only TRP, when SRS power control is not tied with PUSCH power control, and where the UE is configured with a closed loop power control mechanism that acts to select one of a plurality (e.g., two) power control adjustment values at the UE, it may be that a particular SRS used by the UE is associated with only one power control adjustment value at the UE.
[0084] For some such cases, a bit width for a field in the DCI for a TPC command may be configured to be larger than two bits (e.g., three or four bits). In some of these situations, it may be that a TPC command is of two bits (and any additional bits of the DCI field for the TPC command may be understood by the UE as reserved / not used).
[0085] In other such situations, it may be that a TPC command of more than two bits (e.g., is of three or four bits as may “fit” within the DCI field for the TPC command). These “additional” bits (e.g., over the two-bit TPC command case) may make it possible to represent more TPC adjustment values than can otherwise be indicated in cases not using these “additional” bits.
[0086] For example, Table 1 represents a mapping of TPC commands as may be represented in a two-bit TPC command field to both absolute power and accumulated (adjustment) power values for δPUSCH,b,f,c (for PUSCH) and absolute power and accumulated (adjustment) power values for δSRS,b,f,c(for SRS) (note particularly the case of accumulated (adjustment) power values for δSRS,b,f,c): Table 1: Example Mapping of TPC Commands Representable by a Two-Bit TPC Command Field13 4896-2109-2309\1 P68919WO2TPC Accumulated δPUSCH,b,f,cor Absolute δPUSCH,b,f,cor δSRS,b,f,csay e epese e a ee- co a e o o a soue po e a accumulated (adjustment) power values for each of δPUSCH,b,f,c and δSRS,b,f,c values (note particularly the additional available values that may be represented for the case of accumulated (adjustment) power values for δSRS,b,f,c): Table 2: Example Mapping of TPC Commands Representable by a Three-Bit TPC Command Field TPC Accumulated δPUSCH,b,f,c or Absolute δPUSCH,b,f,c or δSRS,b,f,c14 4896-2109-2309\1 P68919WO26 2 4
[0088] In other embodiments relating to the use of DCI (e.g., of format 2_3) for power control for SRS transmission to an UL-only TRP, when SRS power control is not tied with PUSCH power control, where the UE is configured with a closed loop power control mechanism that acts to select one of a plurality (e.g., two) power control adjustment values at the UE, and where a particular SRS used by the UE is associated with only one power control adjustment value at the UE, a width of a TPC command field used in the DCI (and thus of a TPC command itself) is two bits.
[0089] In some embodiments relating to the use of DCI (e.g., of format 2_3) for power control for SRS transmission to an UL-only TRP, when SRS power control is not tied with PUSCH power control, it may be that a range of possibilities for the location of a starting block of a group of block(s) within the DCI having TPC command(s) intended for that UE may be relatively large. In some cases, for example, the range for this location may be represented using greater than 31 bits.
[0090] FIG. 5 illustrates an SRS-TPC-CommandConfig IE 500 as may be used in some existing wireless communication systems. The SRS-TPC-CommandConfig IE 500 may be used to configure a location within the DCI (e.g., of format 2_3) where the UE can find a starting block of a group of block(s) having TPC command(s) for SRS transmission that are intended for that UE.
[0091] For example, the startingBitOfFormat2-3 IE 502 may instruct the UE about a first location for such a starting block of a group of block(s) within the DCI that is for the UE and that carry TPC command(s) to be used by the UE for an SRS of NUL in a serving cell. Further, the startingBitOfFormat2-3SUL IE 504 may instruct the UE about a second location for such a starting block for a group of block(s) within the DCI that is for the UE and that carry TPC command(s) to be used by the UE for an SRS of SUL in a serving cell.15 4896-2109-2309\1 P68919WO2
[0092] As can be seen with reference to the startingBitOfFormat2-3 IE 502 and the startingBitOfFormat2-3SUL IE 504, there are a maximum of 32 bits may be used to make the location representation(s).
[0093] FIG. 6 illustrates an SRS-TPC-CommandConfig IE 600 as may be used in wireless communication systems according to embodiments discussed herein. The SRS- TPC-CommandConfig IE 600 may be used to configure a location within the DCI (e.g., of format 2_3) where the UE can find a starting block of a group of block(s) having TPC command(s) for SRS transmission that are intended for that UE.
[0094] For example, the startingBitOfFormat2-3-r19 IE 602 may instruct the UE about a first location for such a starting block of a group of block(s) within the DCI that is for the UE and that carry TPC command(s) to be used by the UE for an SRS of NUL in a serving cell. Further, startingBitOfFormat2-3SUL-r19 IE 604 may instruct the UE about a second location for such a starting block for a group of block(s) within the DCI that is for the UE and that carry TPC command(s) to be used by the UE for an SRS of SUL in a serving cell.
[0095] As can be seen with reference to the startingBitOfFormat2-3-r19 IE 602 and the startingBitOfFormat2-3SUL-r19 IE 604, the use of either of these allows for location representations of using up to 60 bits. Accordingly, as compared to the SRS-TPC- CommandConfig IE 500 of FIG. 5, the SRS-TPC-CommandConfig IE 600 of FIG. 6 allows for a greater range of locations to be configured.
[0096] Note that in cases where, as illustrated, the network configures both a startingBitOfFormat2-3-r19 IE 602 and a startingBitOfFormat2-3 IE 606, a UE that is capable of using the startingBitOfFormat2-3-r19 IE 602 ignores the startingBitOfFormat2-3 IE 606. Similarly, in cases where, as illustrated, the network configures both a startingBitOfFormat2-3SUL-r19 IE 604 and a startingBitOfFormat2- 3SUL IE 608, a UE capable of using the startingBitOfFormat2-3SUL-r19 IE 604 ignores the startingBitOfFormat2-3SUL IE 608. Embodiments of Unicast Scheduling DCI for Adjusting Power Control Adjustment Values
[0097] In some embodiments relating to the use of DCI for power control for SRS transmission to an UL-only TRP, unicast scheduling DCI may be used to indicate power control adjustment values for the closed loop power control adjustment. For example, a16 4896-2109-2309\1 P68919WO2unicast UL-scheduling DCI format, such as DCI format 0_1, DCI format 0_2, and / or DCI format 0_3 may be used. As another example, a unicast DL-scheduling DCI format, such as DCI format 1_1, DCI format 1_2, and / or DCI format 1_3 may be used.
[0098] In cases where unicast scheduling DCI can be used for power control for SRS transmission to an UL-only TRP, a field of the unicast scheduling DCI may be used to indicate whether an SRS transmission occurs according to a particular one of a plurality (e.g., two) power control adjustment values known to the UE and to further indicate an adjustment to that power control adjustment value. Such a field may be referred to herein as an “SRS TPC” field.
[0099] Cases for the use of an SRS TPC field in circumstances where the UE is configured with a closed loop power control mechanism that acts to select one of a plurality (e.g., two) power control adjustment values at the UE for adjustment and / or use for calculating an SRS transmission power are now discussed.
[0100] FIG. 7 illustrates a first option 702 and a second option 704 for using an SRS TPC field in cases where a closed loop power control mechanism at a UE uses a plurality power control adjustment values. Under the first option 702, an index 706 provided in the SRS TPC field is understood to correspond to a TPC command 708 that is (also) found in the SRS TPC field.
[0101] The index 706 may be of a single bit. The TPC command 708 may be of two bits. Accordingly, the first option 702 may be understood to use three bits. Note that the particular bit widths of the index 706 and / or the TPC command 708 in the illustrated first option 702 are given by way of example and not by way of limitation.
[0102] Corresponding to first option 702, the index 706 may be understood as a closed loop index that indicates one of two power control adjustment values at the UE. Thus, when the index 706 indicates a first value (e.g., 0), the UE understands that the TPC command 708 is meant to be applied to adjust a first power control adjustment value used by the UE. When the index 706 instead indicates a second value (e.g., 1), the UE understands that the TPC command 708 is instead meant to be applied to adjust a second power control adjustment value used by the UE.
[0103] Under the second option 704, the SRS TPC field includes a TPC command 710 and a TPC command 712. Each of the TPC command 710 and the TPC command 712 may be two bits in some embodiments. Accordingly, the second option 704 may be understood to use four bits. Note that the particular bit widths of the TPC command 71017 4896-2109-2309\1 P68919WO2and / or the TPC command 712 in the illustrated second option 704 are given by way of example and not by way of limitation.
[0104] In the second option 704, the UE may understand, based on their locations within the DCI (e.g., relative to each other within the DCI), that the TPC command 710 is to be used to adjust a first power control adjustment value used by the UE (e.g., corresponding to closed loop index 0), while the TPC command 712 is to be used to adjust a second power control adjustment value used by the UE (e.g., corresponding to closed loop index 1).
[0105] In cases where unicast scheduling DCI may be used for power control for SRS transmission to an UL-only TRP, it may be that multiple and separate SRS TPC fields are used. A first SRS TPC field may be used to communicate a first TPC command to be used by the UE in cases where an SRS uses only a single power control adjustment value, while the second SRS TPC field may be used to communicate a second TPC command to be used by the UE in cases of where the SRS uses one of two power control adjustment values.
[0106] In other cases where unicast scheduling DCI may be used for power control for SRS transmission to an UL-only TRP, and where an SRS TPC field is included in the DCI, it may be that the DCI also includes an index corresponding to the SRS TPC field. The index may set indicate whether the SRS TPC field (e.g., a TPC command in the SRS TPC field) is to be used by the UE with one or two power control adjustment values.
[0107] In cases where unicast uplink-scheduling DCI (e.g., of format 0_1 and / or 0_2) is used for power control for SRS transmission to an UL-only TRP, and where one SRS TPC field(s) are used in the DCI, the DCI may indicate an uplink scheduling (UL-SCH) indicator that is set to zero (meaning that the DCI is not scheduling an UL data transmission) and may further use a CSI request field having all zero(s) (meaning that the corresponding DCI is not triggering aperiodic CSI report). In such circumstances, this may communicate to the UE that the unicast uplink-scheduling DCI does not trigger an UL transmission (e.g., and accordingly may be used for power control for SRS transmission).
[0108] FIG. 8 illustrates a method 800 of a UE, according to embodiments discussed herein. The method 800 includes receiving 802, from a base station, a DCI that triggers a PRACH transmission by the UE to the base station, wherein the DCI indicates a pathloss offset value to the UE. The method 800 further includes calculating 804 a transmission18 4896-2109-2309\1 P68919WO2power for the PRACH transmission based on the pathloss offset value. The method 800 further includes transmitting 806 the PRACH transmission to the base station using the transmission power.
[0109] In some embodiments of the method 800, the PRACH transmission to the base station is sent through an UL-only TRP of the base station.
[0110] In some embodiments of the method 800, the DCI indicates the pathloss offset value to the UE using an index to the pathloss offset value within a pathloss offset table. In some such embodiments, the method 800 further includes receiving, from the base station, the pathloss offset table.
[0111] In some embodiments, the method 800 further includes receiving, from the base station, a configuration that a SSB is associated with the pathloss offset value, and wherein the DCI indicates the pathloss offset value to the UE by indicating the SSB associated with the pathloss offset value to the UE as the SSB that is used to determine a RACH occasion for the PRACH transmission. In some such embodiments, the method 800 further includes receiving, from the base station, a MAC CE that modifies the pathloss offset value that is associated with the SSB.
[0112] In some embodiments, the method 800 further includes receiving, from the base station: a first configuration that a TCI state is associated with a pathloss offset value and a second configuration that an SSB is a QCL source of the TCI state, and the DCI indicates the pathloss offset value to the UE by indicating, to the UE, the SSB that is the QCL source of the TCI state that is associated with the pathloss offset value.
[0113] In some embodiments of the method 800, the DCI is of DCI format 1_0.
[0114] FIG. 9 illustrates a method 900 of a base station, according to embodiments discussed herein. The method 900 includes sending 902, to a UE, a DCI that triggers a PRACH transmission by the UE to the base station, wherein the DCI indicates a pathloss offset value to the UE. The method 900 further includes receiving 904, from the UE, the PRACH transmission in response to the DCI.
[0115] In some embodiments of the method 900, the PRACH transmission from the UE is received through an UL-only TRP of the base station.
[0116] In some embodiments of the method 900, the DCI indicates the pathloss offset value to the UE using an index to the pathloss offset value within a pathloss offset table.19 4896-2109-2309\1 P68919WO2In some such embodiments, the method 900 further includes sending, to the UE, the pathloss offset table.
[0117] In some embodiments, the method 900 further includes sending, to the UE, a configuration that an SSB is associated with the pathloss offset value, and wherein the DCI indicates the pathloss offset value to the UE by indicating the SSB associated with the pathloss offset value to the UE as the SSB that is used to determine a RACH occasion for the PRACH transmission. In some such embodiments, the method 900 further includes sending, to the UE, a MAC CE that modifies the pathloss offset value that is associated with the SSB.
[0118] In some embodiments, the method 900 further includes sending, to the UE, a first configuration that a TCI state is associated with a pathloss offset value and a second configuration that an SSB is a QCL source of the TCI state, and the DCI indicates the pathloss offset value to the UE by indicating the SSB that is the QCL source of the TCI state that is associated with the pathloss offset value to the UE, wherein the DCI indicates the pathloss offset value to the UE by indicating, to the UE, the SSB that is the QCL source of the TCI state that is associated the pathloss offset value.
[0119] In some embodiments of the method 900, the DCI is of DCI format 1_0.
[0120] FIG. 10 illustrates a method 1000 of a UE, according to embodiments discussed herein. The method 1000 includes receiving 1002, from a base station, a CC set configuration of a CC set for which DCI indicating that a use of aperiodic SRS transmission is not triggered provides TPC commands to adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set. The method 1000 further includes receiving 1004, from the base station, a first DCI that indicates that the use of aperiodic SRS transmission is not triggered and that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS on a first CC of the CC set. The method 1000 further includes adjusting 1006 the first power control adjustment value used by the UE for transmitting the first SRS on the first CC based on the first TPC command for the first CC. The method 1000 further includes calculating 1008 a first transmission power for the first SRS based on the first power control adjustment value. The method 1000 further includes transmitting 1010 the first SRS to the base station on the first CC using the first transmission power.20 4896-2109-2309\1 P68919WO2
[0121] In some embodiments of the method 1000, the first DCI further includes a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS on a second CC of the CC set, and the method 1000 further includes adjusting the second power control adjustment value used by the UE for transmitting the second SRS on the second CC based on the second TPC command for the second CC; calculating a transmission power for the second SRS based on second power control adjustment value; and transmitting the second SRS to the base station on the second CC using the second transmission power.
[0122] In some embodiments, the method 1000 further includes identifying an index corresponding to the first TPC command for the first SRS in the first DCI, the index identifying the first power control adjustment value from a plurality of power control adjustment values at the UE; and the UE adjusts the first power control adjustment value for transmitting the first SRS on the first CC based on the first TPC command because of the identification of the first power control adjustment value by the index.
[0123] In some embodiments, the method 1000 further includes identifying, from among a plurality of TPC commands for the first SRS in the first DCI, the first TPC command based on a correspondence of a location of the first TPC command in the first DCI to the first power control adjustment value.
[0124] In some embodiments of the method 1000, the first TPC command is more than two bits; and the UE adjusts the first power control adjustment value for transmitting the first SRS on the first CC based on the first TPC command by applying the first TPC command of more than two bits.
[0125] In some embodiments, the method 1000 further includes, receiving, from the base station, a DCI format configuration that identifies a location of a block of the first DCI comprising the first TPC command using more than 32 bits and locating the block of the first DCI comprising the first TPC command based on the DCI format configuration.
[0126] In some embodiments of the method 1000, the first DCI is of DCI format 2_3.
[0127] In some embodiments, the method 1000 further includes determining that the first DCI indicates that the use of aperiodic SRS transmission is not triggered based on an SRS request field value of “00” in the DCI.
[0128] In some embodiments of the method 1000, the CC set configuration comprises a CC set index of value three for the CC set.21 4896-2109-2309\1 P68919WO2
[0129] FIG. 11 illustrates a method 1100 of a base station, according to embodiments discussed herein. The method 1100 includes sending 1102, to a UE, a CC set configuration of a CC set for which DCI indicating that a use of aperiodic SRS transmission is not triggered provides TPC commands to adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set. The method 1100 further includes sending 1104, to the UE, a first DCI that indicates that the use of aperiodic SRS transmission is not triggered and that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS on a first CC of the CC set. The method 1100 further includes receiving 1106 the first SRS from the UE in response to the first DCI.
[0130] In some embodiments of the method 1100, the first DCI further comprises an index corresponding to the first TPC command for the first SRS, the index indicating a use of a first power control adjustment state of a plurality of power control adjustment states for the first SRS.
[0131] In some embodiments of the method 1100, the first DCI further comprises a second TPC command for the first SRS.
[0132] In some embodiments of the method 1100, the first TPC command is more than two bits.
[0133] In some embodiments, the method 1100 further includes sending, to the UE, a DCI format configuration that identifies a location of a block of the first DCI comprising the first TPC command using more than 32 bits.
[0134] In some embodiments of the method 1100, the first DCI is of DCI format 2_3.
[0135] In some embodiments of the method 1100, the first DCI indicates that the use of aperiodic SRS transmission is not triggered by using an SRS request field value of “00”.
[0136] In some embodiments of the method 1100, the CC set configuration comprises a CC set index of value three for the CC set.
[0137] FIG. 12 illustrates a method 1200 of a UE, according to embodiments discussed herein. The method 1200 includes receiving 1202, from a base station, a first unicast scheduling DCI that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS. The method 1200 further includes adjusting 1204 the first power control adjustment value used by the UE for transmitting the first SRS based on the first TPC command. The method 1200 further22 4896-2109-2309\1 P68919WO2includes calculating 1206 a first transmission power for the first SRS based on the first power control adjustment value. The method 1200 further includes transmitting 1208 the first SRS to the base station using the first transmission power.
[0138] In some embodiments, the method 1200 further includes identifying an index corresponding to the TPC command for the first SRS within the unicast scheduling DCI, the index identifying the first power control adjustment value from a plurality of power control adjustment values at the UE; wherein the UE adjusts the first power control adjustment value for transmitting the first SRS based on the first TPC command because of the identification of the first power control adjustment value by the index.
[0139] In some embodiments, the method 1200 further includes identifying, from among a plurality of TPC commands for the first SRS in the unicast scheduling DCI, the first TPC command based on a correspondence of a location of the first TPC command in the unicast scheduling DCI to the first power control adjustment value.
[0140] In some embodiments of the method 1200, the first SRS corresponds to a first TRP using both DL and UL; and the unicast scheduling DCI further comprises a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS corresponding to a second TRP using UL and not DL, and further comprising adjusting the second power control adjustment value used by the UE for transmitting the second SRS based on the second TPC command; calculating a transmission power for the second SRS based on second power control adjustment value; and transmitting the second SRS to the base station using the second transmission power.
[0141] In some embodiments, the method 1200 further includes determining, based on an index found in the unicast scheduling DCI, that the first TPC command for the first SRS corresponds to the first power control adjustment value.
[0142] In some embodiments of the method 1200, the unicast scheduling DCI is of an uplink-scheduling DCI format, and further comprising determining that the unicast scheduling DCI does not trigger an UL transmission based on identifying that a UL-SCH indicator of the unicast scheduling DCI is set to zero and that a CSI request of the unicast scheduling DCI contains all zeros.
[0143] FIG. 13 illustrates a method 1300 of a base station, according to embodiments discussed herein. The method 1300 includes sending 1302, to a UE, a first unicast scheduling DCI that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS. The method 1300 further23 4896-2109-2309\1 P68919WO2includes receiving 1304 the first SRS from the UE in response to the unicast scheduling DCI.
[0144] In some embodiments of the method 1300, the unicast scheduling DCI further comprises an index corresponding to the first TPC command for the first SRS, the index indicating a use of a first power control adjustment state of a plurality of power control adjustment states for the first SRS.
[0145] In some embodiments of the method 1300, the unicast scheduling DCI further comprises a second TPC command for the first SRS.
[0146] In some embodiments of the method 1300, the first SRS corresponds to a first TRP using both DL and UL; and the unicast scheduling DCI further comprises a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS corresponding to a second TRP using UL and not DL, and further comprising receiving the second SRS from the UE in response to the unicast scheduling DCI.
[0147] In some embodiments of the method 1300, the unicast scheduling DCI further comprises an index that identifies that the first TPC command for the first SRS corresponds to the first power control adjustment value.
[0148] In some embodiments of the method 1300, the unicast scheduling DCI is of an uplink-scheduling DCI format that indicates that it does not trigger a UL transmission by using a UL-SCH indicator set to zero and a CSI request that contains all zeros.
[0149] FIG. 14 illustrates an example architecture of a wireless communication system 1400, according to embodiments disclosed herein. The following description is provided for an example wireless communication system 1400 that operates in conjunction with the LTE system standards and / or 5G or NR system standards as provided by 3GPP technical specifications.
[0150] As shown by FIG. 14, the wireless communication system 1400 includes UE 1402 and UE 1404 (although any number of UEs may be used). In this example, the UE 1402 and the UE 1404 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks), but may also comprise any mobile or non-mobile computing device configured for wireless communication.
[0151] The UE 1402 and UE 1404 may be configured to communicatively couple with a RAN 1406. In embodiments, the RAN 1406 may be NG-RAN, E-UTRAN, etc. The UE24 4896-2109-2309\1 P68919WO21402 and UE 1404 utilize connections (or channels) (shown as connection 1408 and connection 1410, respectively) with the RAN 1406, each of which comprises a physical communications interface. The RAN 1406 can include one or more base stations (such as base station 1412 and base station 1414) that enable the connection 1408 and connection 1410.
[0152] In this example, the connection 1408 and connection 1410 are air interfaces to enable such communicative coupling, and may be consistent with RAT(s) used by the RAN 1406, such as, for example, an LTE and / or NR.
[0153] In some embodiments, the UE 1402 and UE 1404 may also directly exchange communication data via a sidelink interface 1416. The UE 1404 is shown to be configured to access an access point (shown as AP 1418) via connection 1420. By way of example, the connection 1420 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, wherein the AP 1418 may comprise a Wi-Fi®router. In this example, the AP 1418 may be connected to another network (for example, the Internet) without going through a CN 1424.
[0154] In embodiments, the UE 1402 and UE 1404 can be configured to communicate using orthogonal frequency division multiplexing (OFDM) communication signals with each other or with the base station 1412 and / or the base station 1414 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an orthogonal frequency division multiple access (OFDMA) communication technique (e.g., for downlink communications) or a single carrier frequency division multiple access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink communications), although the scope of the embodiments is not limited in this respect. The OFDM signals can comprise a plurality of orthogonal subcarriers.
[0155] In some embodiments, all or parts of the base station 1412 or base station 1414 may be implemented as one or more software entities running on server computers as part of a virtual network. In addition, or in other embodiments, the base station 1412 or base station 1414 may be configured to communicate with one another via interface 1422. In embodiments where the wireless communication system 1400 is an LTE system (e.g., when the CN 1424 is an EPC), the interface 1422 may be an X2 interface. The X2 interface may be defined between two or more base stations (e.g., two or more eNBs and the like) that connect to an EPC, and / or between two eNBs connecting to the EPC. In25 4896-2109-2309\1 P68919WO2embodiments where the wireless communication system 1400 is an NR system (e.g., when CN 1424 is a 5GC), the interface 1422 may be an Xn interface. The Xn interface is defined between two or more base stations (e.g., two or more gNBs and the like) that connect to 5GC, between a base station 1412 (e.g., a gNB) connecting to 5GC and an eNB, and / or between two eNBs connecting to 5GC (e.g., CN 1424).
[0156] The RAN 1406 is shown to be communicatively coupled to the CN 1424. The CN 1424 may comprise one or more network elements 1426, which are configured to offer various data and telecommunications services to customers / subscribers (e.g., users of UE 1402 and UE 1404) who are connected to the CN 1424 via the RAN 1406. The components of the CN 1424 may be implemented in one physical device or separate physical devices including components to read and execute instructions from a machine- readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium).
[0157] In embodiments, the CN 1424 may be an EPC, and the RAN 1406 may be connected with the CN 1424 via an S1 interface 1428. In embodiments, the S1 interface 1428 may be split into two parts, an S1 user plane (S1-U) interface, which carries traffic data between the base station 1412 or base station 1414 and a serving gateway (S-GW), and the S1-MME interface, which is a signaling interface between the base station 1412 or base station 1414 and mobility management entities (MMEs).
[0158] In embodiments, the CN 1424 may be a 5GC, and the RAN 1406 may be connected with the CN 1424 via an NG interface 1428. In embodiments, the NG interface 1428 may be split into two parts, an NG user plane (NG-U) interface, which carries traffic data between the base station 1412 or base station 1414 and a user plane function (UPF), and the S1 control plane (NG-C) interface, which is a signaling interface between the base station 1412 or base station 1414 and access and mobility management functions (AMFs).
[0159] Generally, an application server 1430 may be an element offering applications that use internet protocol (IP) bearer resources with the CN 1424 (e.g., packet switched data services). The application server 1430 can also be configured to support one or more communication services (e.g., VoIP sessions, group communication sessions, etc.) for the UE 1402 and UE 1404 via the CN 1424. The application server 1430 may communicate with the CN 1424 through an IP communications interface 1432.26 4896-2109-2309\1 P68919WO2
[0160] FIG. 15 illustrates a system 1500 for performing signaling 1534 between a wireless device 1502 and a network device 1518, according to embodiments disclosed herein. The system 1500 may be a portion of a wireless communications system as herein described. The wireless device 1502 may be, for example, a UE of a wireless communication system. The network device 1518 may be, for example, a base station (e.g., an eNB or a gNB) of a wireless communication system.
[0161] The wireless device 1502 may include one or more processor(s) 1504. The processor(s) 1504 may execute instructions such that various operations of the wireless device 1502 are performed, as described herein. The processor(s) 1504 may include one or more baseband processors implemented using, for example, a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
[0162] The wireless device 1502 may include a memory 1506. The memory 1506 may be a non-transitory computer-readable storage medium that stores instructions 1508 (which may include, for example, the instructions being executed by the processor(s) 1504). The instructions 1508 may also be referred to as program code or a computer program. The memory 1506 may also store data used by, and results computed by, the processor(s) 1504.
[0163] The wireless device 1502 may include one or more transceiver(s) 1510 that may include radio frequency (RF) transmitter circuitry and / or receiver circuitry that use the antenna(s) 1512 of the wireless device 1502 to facilitate signaling (e.g., the signaling 1534) to and / or from the wireless device 1502 with other devices (e.g., the network device 1518) according to corresponding RATs.
[0164] The wireless device 1502 may include one or more antenna(s) 1512 (e.g., one, two, four, or more). For embodiments with multiple antenna(s) 1512, the wireless device 1502 may leverage the spatial diversity of such multiple antenna(s) 1512 to send and / or receive multiple different data streams on the same time and frequency resources. This behavior may be referred to as, for example, multiple input multiple output (MIMO) behavior (referring to the multiple antennas used at each of a transmitting device and a receiving device that enable this aspect). MIMO transmissions by the wireless device 1502 may be accomplished according to precoding (or digital beamforming) that is27 4896-2109-2309\1 P68919WO2applied at the wireless device 1502 that multiplexes the data streams across the antenna(s) 1512 according to known or assumed channel characteristics such that each data stream is received with an appropriate signal strength relative to other streams and at a desired location in the spatial domain (e.g., the location of a receiver associated with that data stream). Certain embodiments may use single user MIMO (SU-MIMO) methods (where the data streams are all directed to a single receiver) and / or multi user MIMO (MU-MIMO) methods (where individual data streams may be directed to individual (different) receivers in different locations in the spatial domain).
[0165] In certain embodiments having multiple antennas, the wireless device 1502 may implement analog beamforming techniques, whereby phases of the signals sent by the antenna(s) 1512 are relatively adjusted such that the (joint) transmission of the antenna(s) 1512 can be directed (this is sometimes referred to as beam steering).
[0166] The wireless device 1502 may include one or more interface(s) 1514. The interface(s) 1514 may be used to provide input to or output from the wireless device 1502. For example, a wireless device 1502 that is a UE may include interface(s) 1514 such as microphones, speakers, a touchscreen, buttons, and the like in order to allow for input and / or output to the UE by a user of the UE. Other interfaces of such a UE may be made up of transmitters, receivers, and other circuitry (e.g., other than the transceiver(s) 1510 / antenna(s) 1512 already described) that allow for communication between the UE and other devices and may operate according to known protocols (e.g., Wi-Fi®, Bluetooth®, and the like).
[0167] The wireless device 1502 may include a power control module 1516. The power control module 1516 may be implemented via hardware, software, or combinations thereof. For example, the power control module 1516 may be implemented as a processor, circuit, and / or instructions 1508 stored in the memory 1506 and executed by the processor(s) 1504. In some examples, the power control module 1516 may be integrated within the processor(s) 1504 and / or the transceiver(s) 1510. For example, the power control module 1516 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor(s) 1504 or the transceiver(s) 1510.
[0168] The power control module 1516 may be used for various aspects of the present disclosure, for example, aspects of FIG. 8, FIG. 10, and / or FIG. 12. The power control module 1516 may configure the wireless device 1502 to use DCI that triggers a PRACH28 4896-2109-2309\1 P68919WO2transmission and that indicates a pathloss offset value to the wireless device 1502 to be used by the wireless device 1502 to calculate a transmission power for the PRACH transmission; to use a CC set configuration for CCs for which DCI indicating that a use of aperiodic SRS transmission is not triggered provides TPC commands to adjust one or more power control adjustment values at the wireless device 1502 for transmitting SRSs on the CC set; and / or to use unicast scheduling DCI having a TPC command for adjusting a power control adjustment value used by the wireless device 1502 for transmitting an SRS, as discussed in embodiments herein.
[0169] The network device 1518 may include one or more processor(s) 1520. The processor(s) 1520 may execute instructions such that various operations of the network device 1518 are performed, as described herein. The processor(s) 1520 may include one or more baseband processors implemented using, for example, a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
[0170] The network device 1518 may include a memory 1522. The memory 1522 may be a non-transitory computer-readable storage medium that stores instructions 1524 (which may include, for example, the instructions being executed by the processor(s) 1520). The instructions 1524 may also be referred to as program code or a computer program. The memory 1522 may also store data used by, and results computed by, the processor(s) 1520.
[0171] The network device 1518 may include one or more transceiver(s) 1526 that may include RF transmitter circuitry and / or receiver circuitry that use the antenna(s) 1528 of the network device 1518 to facilitate signaling (e.g., the signaling 1534) to and / or from the network device 1518 with other devices (e.g., the wireless device 1502) according to corresponding RATs.
[0172] The network device 1518 may include one or more antenna(s) 1528 (e.g., one, two, four, or more). In embodiments having multiple antenna(s) 1528, the network device 1518 may perform MIMO, digital beamforming, analog beamforming, beam steering, etc., as has been described.
[0173] The network device 1518 may include one or more interface(s) 1530. The interface(s) 1530 may be used to provide input to or output from the network device 1518. For example, a network device 1518 that is a base station may include interface(s) 1530 made up of transmitters, receivers, and other circuitry (e.g., other than the29 4896-2109-2309\1 P68919WO2transceiver(s) 1526 / antenna(s) 1528 already described) that enables the base station to communicate with other equipment in a core network, and / or that enables the base station to communicate with external networks, computers, databases, and the like for purposes of operations, administration, and maintenance of the base station or other equipment operably connected thereto.
[0174] The network device 1518 may include a power control module 1532. The power control module 1532 may be implemented via hardware, software, or combinations thereof. For example, the power control module 1532 may be implemented as a processor, circuit, and / or instructions 1524 stored in the memory 1522 and executed by the processor(s) 1520. In some examples, the power control module 1532 may be integrated within the processor(s) 1520 and / or the transceiver(s) 1526. For example, the power control module 1532 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor(s) 1520 or the transceiver(s) 1526.
[0175] The power control module 1532 may be used for various aspects of the present disclosure, for example, aspects of FIG. 9, FIG. 11, and / or FIG. 13. The power control module 1532 may configure the network device 1518 to generate and transmit DCI that triggers a PRACH transmission and that indicates a pathloss offset value to a UE to be used by the UE to calculate a transmission power for the PRACH transmission; to generate and provide a UE with a CC set configuration for CCs for which DCI indicating that a use of aperiodic SRS transmission is not triggered provides TPC commands to adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set and to send, to the UE a corresponding DCI; and / or to generate and or transmit to a UE a unicast scheduling DCI having a TPC command for adjusting a power control adjustment value used by the UE for transmitting an SRS, as discussed in embodiments herein.
[0176] Embodiments contemplated herein include an apparatus comprising means to perform one or more elements of any of the method 800, the method 1000, and / or the method 1200. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1502 that is a UE, as described herein).
[0177] Embodiments contemplated herein include one or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to30 4896-2109-2309\1 P68919WO2perform one or more elements of any of the method 800, the method 1000, and / or the method 1200. This non-transitory computer-readable media may be, for example, a memory of a UE (such as a memory 1506 of a wireless device 1502 that is a UE, as described herein).
[0178] Embodiments contemplated herein include an apparatus comprising logic, modules, or circuitry to perform one or more elements of any of the method 800, the method 1000, and / or the method 1200. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1502 that is a UE, as described herein).
[0179] Embodiments contemplated herein include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of any of the method 800, the method 1000, and / or the method 1200. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1502 that is a UE, as described herein).
[0180] Embodiments contemplated herein include a signal as described in or related to one or more elements of any of the method 800, the method 1000, and / or the method 1200.
[0181] Embodiments contemplated herein include a computer program or computer program product comprising instructions, wherein execution of the program by a processor is to cause the processor to carry out one or more elements of any of the method 800, the method 1000, and / or the method 1200. The processor may be a processor of a UE (such as a processor(s) 1504 of a wireless device 1502 that is a UE, as described herein). These instructions may be, for example, located in the processor and / or on a memory of the UE (such as a memory 1506 of a wireless device 1502 that is a UE, as described herein).
[0182] Embodiments contemplated herein include an apparatus comprising means to perform one or more elements of any of the method 900, the method 1100, and / or the method 1300. This apparatus may be, for example, an apparatus of a base station (such as a network device 1518 that is a base station, as described herein).
[0183] Embodiments contemplated herein include one or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of any of the method 900, the method 1100, and / or the31 4896-2109-2309\1 P68919WO2method 1300. This non-transitory computer-readable media may be, for example, a memory of a base station (such as a memory 1522 of a network device 1518 that is a base station, as described herein).
[0184] Embodiments contemplated herein include an apparatus comprising logic, modules, or circuitry to perform one or more elements of any of the method 900, the method 1100, and / or the method 1300. This apparatus may be, for example, an apparatus of a base station (such as a network device 1518 that is a base station, as described herein).
[0185] Embodiments contemplated herein include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of any of the method 900, the method 1100, and / or the method 1300. This apparatus may be, for example, an apparatus of a base station (such as a network device 1518 that is a base station, as described herein).
[0186] Embodiments contemplated herein include a signal as described in or related to one or more elements of any of the method 900, the method 1100, and / or the method 1300.
[0187] Embodiments contemplated herein include a computer program or computer program product comprising instructions, wherein execution of the program by a processing element is to cause the processing element to carry out one or more elements of any of the method 900, the method 1100, and / or the method 1300. The processor may be a processor of a base station (such as a processor(s) 1520 of a network device 1518 that is a base station, as described herein). These instructions may be, for example, located in the processor and / or on a memory of the base station (such as a memory 1522 of a network device 1518 that is a base station, as described herein).
[0188] For one or more embodiments, at least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, and / or methods as set forth herein. For example, a baseband processor as described herein in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein. For another example, circuitry associated with a UE, base station, network element, etc. as described above in connection with one or more of the preceding figures32 4896-2109-2309\1 P68919WO2may be configured to operate in accordance with one or more of the examples set forth herein.
[0189] Any of the above described embodiments may be combined with any other embodiment (or combination of embodiments), unless explicitly stated otherwise. The foregoing description of one or more implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments.
[0190] Embodiments and implementations of the systems and methods described herein may include various operations, which may be embodied in machine-executable instructions to be executed by a computer system. A computer system may include one or more general-purpose or special-purpose computers (or other electronic devices). The computer system may include hardware components that include specific logic for performing the operations or may include a combination of hardware, software, and / or firmware.
[0191] It should be recognized that the systems described herein include descriptions of specific embodiments. These embodiments can be combined into single systems, partially combined into other systems, split into multiple systems or divided or combined in other ways. In addition, it is contemplated that parameters, attributes, aspects, etc. of one embodiment can be used in another embodiment. The parameters, attributes, aspects, etc. are merely described in one or more embodiments for clarity, and it is recognized that the parameters, attributes, aspects, etc. can be combined with or substituted for parameters, attributes, aspects, etc. of another embodiment unless specifically disclaimed herein.
[0192] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
[0193] Although the foregoing has been described in some detail for purposes of clarity, it will be apparent that certain changes and modifications may be made without departing from the principles thereof. It should be noted that there are many alternative33 4896-2109-2309\1 P68919WO2ways of implementing both the processes and apparatuses described herein. Accordingly, the present embodiments are to be considered illustrative and not restrictive, and the description is not to be limited to the details given herein, but may be modified within the scope and equivalents of the appended claims.34 4896-2109-2309\1 P68919WO2
Claims
CLAIMS 1. A method of a user equipment (UE), comprising: receiving, from a base station, a component carrier (CC) set configuration of a CC set for which downlink control information (DCI) indicating that a use of aperiodic SRS transmission is not triggered provides transmission power control (TPC) commands to adjust one or more power control adjustment values at the UE for transmitting sounding reference signals (SRSs) on the CC set; receiving, from the base station, a first DCI that indicates that the use of aperiodic SRS transmission is not triggered and that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS on a first CC of the CC set; adjusting the first power control adjustment value used by the UE for transmitting the first SRS on the first CC based on the first TPC command for the first CC; calculating a first transmission power for the first SRS based on the first power control adjustment value; and transmitting the first SRS to the base station on the first CC using the first transmission power.
2. The method of claim 1, wherein the first DCI further comprises a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS on a second CC of the CC set, and further comprising: adjusting the second power control adjustment value used by the UE for transmitting the second SRS on the second CC based on the second TPC command for the second CC; calculating a transmission power for the second SRS based on second power control adjustment value; and transmitting the second SRS to the base station on the second CC using the second transmission power.
3. The method of claim 1, further comprising identifying an index corresponding to the first TPC command for the first SRS in the first DCI, the index identifying the first power control adjustment value from a plurality of power control adjustment values at the UE;35 4896-2109-2309\1 P68919WO2wherein the UE adjusts the first power control adjustment value for transmitting the first SRS on the first CC based on the first TPC command because of the identification of the first power control adjustment value by the index.
4. The method of claim 1, further comprising identifying, from among a plurality of TPC commands for the first SRS in the first DCI, the first TPC command based on a correspondence of a location of the first TPC command in the first DCI to the first power control adjustment value.
5. The method of claim 1, wherein: the first TPC command is more than two bits; and the UE adjusts the first power control adjustment value for transmitting the first SRS on the first CC based on the first TPC command by applying the first TPC command of more than two bits.
6. The method of claim 1, further comprising: receiving, from the base station, a DCI format configuration that identifies a location of a block of the first DCI comprising the first TPC command using more than 32 bits; and locating the block of the first DCI comprising the first TPC command based on the DCI format configuration.
7. The method of claim 1, wherein the first DCI is of DCI format 2_3.
8. The method of claim 1, further comprising determining that the first DCI indicates that the use of aperiodic SRS transmission is not triggered based on an SRS request field value of “00” in the DCI.
9. The method of claim 1, wherein the CC set configuration comprises a CC set index of value three for the CC set.
10. A method of a base station, comprising: sending, to a user equipment (UE), a component carrier (CC) set configuration of a CC set for which downlink control information (DCI) indicating that a use of aperiodic SRS transmission is not triggered provides transmission power control (TPC) commands36 4896-2109-2309\1 P68919WO2to adjust one or more power control adjustment values at the UE for transmitting sounding reference signals (SRSs) on the CC set; sending, to the UE, a first DCI that indicates that the use of aperiodic SRS transmission is not triggered and that comprises a first TPC command adjusting a first power control adjustment value used by the UE for transmitting a first SRS on a first CC of the CC set; and receiving the first SRS from the UE in response to the first DCI.
11. The method of claim 10, wherein the first DCI further comprises an index corresponding to the first TPC command for the first SRS, the index indicating a use of a first power control adjustment state of a plurality of power control adjustment states for the first SRS.
12. The method of claim 10, wherein the first DCI further comprises a second TPC command for the first SRS.
13. The method of claim 10, wherein the first TPC command is more than two bits.
14. The method of claim 10, further comprising sending, to the UE, a DCI format configuration that identifies a location of a block of the first DCI comprising the first TPC command using more than 32 bits.
15. The method of claim 10, wherein the first DCI is of DCI format 2_3.
16. The method of claim 10, wherein the first DCI indicates that the use of aperiodic SRS transmission is not triggered by using an SRS request field value of “00”.
17. The method of claim 10, wherein the CC set configuration comprises a CC set index of value three for the CC set.
18. A method of a user equipment (UE), comprising: receiving, from a base station, a first unicast scheduling downlink control information (DCI) that comprises a first transmission power control (TPC) command adjusting a first power control adjustment value used by the UE for transmitting a first SRS; adjusting the first power control adjustment value used by the UE for transmitting the first SRS based on the first TPC command;37 4896-2109-2309\1 P68919WO2calculating a first transmission power for the first SRS based on the first power control adjustment value; and transmitting the first SRS to the base station using the first transmission power.
19. The method of claim 18, further comprising identifying an index corresponding to the TPC command for the first SRS within the unicast scheduling DCI, the index identifying the first power control adjustment value from a plurality of power control adjustment values at the UE; wherein the UE adjusts the first power control adjustment value for transmitting the first SRS based on the first TPC command because of the identification of the first power control adjustment value by the index.
20. The method of claim 18, further comprising identifying, from among a plurality of TPC commands for the first SRS in the unicast scheduling DCI, the first TPC command based on a correspondence of a location of the first TPC command in the unicast scheduling DCI to the first power control adjustment value.
21. The method of claim 18, wherein: the first SRS corresponds to a first transmission reception point (TRP) using both downlink (DL) and (UL); and the unicast scheduling DCI further comprises a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS corresponding to a second TRP using UL and not DL, and further comprising: adjusting the second power control adjustment value used by the UE for transmitting the second SRS based on the second TPC command; calculating a transmission power for the second SRS based on second power control adjustment value; and transmitting the second SRS to the base station using the second transmission power.
22. The method of claim 18, further comprising determining, based on an index found in the unicast scheduling DCI, that the first TPC command for the first SRS corresponds to the first power control adjustment value.38 4896-2109-2309\1 P68919WO223. The method of claim 18, wherein the unicast scheduling DCI is of an uplink- scheduling DCI format, and further comprising determining that the unicast scheduling DCI does not trigger an uplink (UL) transmission based on identifying that an UL scheduling (UL-SCH) indicator of the unicast scheduling DCI is set to zero and that a channel state information (CSI) request of the unicast scheduling DCI contains all zeros.
24. A method of a base station, comprising: sending, to a user equipment (UE), a first unicast scheduling downlink control information (DCI) that comprises a first transmission power control (TPC) command adjusting a first power control adjustment value used by the UE for transmitting a first SRS; and receiving the first SRS from the UE in response to the unicast scheduling DCI.
25. The method of claim 24, wherein the unicast scheduling DCI further comprises an index corresponding to the first TPC command for the first SRS, the index indicating a use of a first power control adjustment state of a plurality of power control adjustment states for the first SRS.
26. The method of claim 24, wherein the unicast scheduling DCI further comprises a second TPC command for the first SRS.
27. The method of claim 24, wherein: the first SRS corresponds to a first transmission reception point (TRP) using both downlink (DL) and (UL); and the unicast scheduling DCI further comprises a second TPC command adjusting a second power control adjustment value used by the UE for transmitting a second SRS corresponding to a second TRP using UL and not DL, and further comprising receiving the second SRS from the UE in response to the unicast scheduling DCI.
28. The method of claim 24, wherein the unicast scheduling DCI further comprises an index that identifies that the first TPC command for the first SRS corresponds to the first power control adjustment value.
29. The method of claim 24, wherein the unicast scheduling DCI is of an uplink- scheduling DCI format that indicates that it does not trigger an uplink (UL) transmission39 4896-2109-2309\1 P68919WO2by using an UL scheduling (UL-SCH) indicator set to zero and a channel state information (CSI) request that contains all zeros.
30. An apparatus comprising means to perform the method of any of claim 1 to claim 29.
31. A computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform the method of any of claim 1 to claim 29.
32. An apparatus comprising logic, modules, or circuitry to perform the method of any of claim 1 to claim 29.
33. A baseband processor for a user equipment (UE) that is configured to cause the UE to perform one or more elements of any one of claim 1 to claim 9 and claim 18 to claim 23.
34. A baseband processor for a base station that is configured to cause the base station to perform one or more elements of any one of claim 10 to claim 17 and claim 24 to claim 29.40 4896-2109-2309\1 P68919WO2