Reference signal measurement for early channel state acquisition
Early CSI acquisition in wireless communication systems is achieved through RS measurement and reporting during idle, inactive, or mobility states, addressing data rate degradation issues by utilizing RRC, MAC, and DCI signals for configuration.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZTE CORP
- Filing Date
- 2025-01-09
- Publication Date
- 2026-07-16
AI Technical Summary
Current wireless communication systems fail to support early channel state information (CSI) acquisition during mobility scenarios, leading to significant data rate degradation until suitable modulation and coding schemes are obtained.
Implementing early CSI acquisition techniques by allowing devices to perform channel state acquisition operations, including RS measurement and reporting, during idle, inactive, or mobility states through configuration information provided by RRC, MAC, or DCI signals, enabling RS measurement and transmission before or after receiving specific network signals.
Enables timely CSI acquisition, reducing data rate degradation and improving transmission quality during mobility events.
Smart Images

Figure CN2025071440_16072026_PF_FP_ABST
Abstract
Description
REFERENCE SIGNAL MEASUREMENT FOR EARLY CHANNEL STATE ACQUISITIONTECHNICAL FIELD
[0001] The present document relates to wireless communication, and in particular, to acquisition of channel information in wireless communication.BACKGROUND
[0002] Mobile telecommunication technologies are moving the world toward an increasingly connected and networked society. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will need to support a much wider range of use-case characteristics and provide a more complex and sophisticated range of access requirements and flexibilities.
[0003] Long-Term Evolution (LTE) is a standard for wireless communication for mobile devices and data terminals developed by 3rd Generation Partnership Project (3GPP) . LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The 5th generation of wireless system, known as 5G, advances the LTE and LTE-Awireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs.SUMMARY
[0004] Techniques described in the present document may be used for achieving improvements in early acquisition of channel state information by allowing devices to perform channel state acquisition under various network operation scenarios.
[0005] In one example aspect, a method of wireless communication is disclosed. The method includes receiving, by a wireless device, a configuration information; and performing, by the wireless device, a reference signal (RS) measurement or transmission operation according to the configuration information.
[0006] In another example aspect, another method of wireless communication is disclosed. The method includes transmitting, by a network device, a configuration information; performing, by the network device, a reference signal (RS) transmission or reception operation according to the configuration information.
[0007] In yet another example aspect, a device for wireless communication is disclosed. The device includes one or more processors configured to execute program code that causes the device to implement an above-described method.
[0008] In yet another aspect, a storage medium is disclosed. The storage medium is computer-readable and stores code that, upon execution, causes one or more processors to implement an above-described method.
[0009] These, and other, aspects are further described throughout the present document.BRIEF DESCRIPTION OF DRAWINGS
[0010] FIG. 1 shows an example of resource partitioning.
[0011] FIG. 2 illustrates an example of a wireless communication network.
[0012] FIG. 3 is a block diagram representation of a portion of a hardware platform in accordance with one or more embodiments of the present technology can be applied.
[0013] FIGS. 4A-4B are flowcharts for wireless communication method embodiments.DETAILED DESCRIPTION
[0014] Techniques described in the present document may be used for achieving improvements in early acquisition of channel state information by allowing devices to perform channel state acquisition under various network operation scenarios.
[0015] Section headings are used in the present document only to improve readability and do not limit scope of the disclosed embodiments and techniques in each section to only that section. Furthermore, some embodiments are described with reference to Third Generation Partnership Project (3GPP) Fifth Generation (5G) New Radio (NR) or Sixth Generation (6G) standard for ease of understanding and the described technology may be implemented in different wireless system that implement protocols other than the NR or 6G protocol.
[0016] 1. Initial discussion
[0017] In present day wireless systems, a CSI acquisition operation can be performed after UE is in the connected state or a cell switch operation is completed. The CSI acquisition operation includes RS measurement or CSI measurement operation, and CSI reporting operation, or RS transmission if applicable. RS configuration for the serving cell is provided by a radio resource control (RRC) message. The time domain behavior of RS transmission can be configured as periodic, aperiodic, or semi-persistent (SP) . Regarding periodic RS transmissions, UE can perform RS measurement periodically once RRC configuration on RS measurement for serving cell is completed. Regarding semi-persistent RS transmissions, one SP CSI-RS resource set is activated by a medium access control (MAC) control element (CE) for activating or deactivating SP CSI-RS resource set for serving cell. Further, active CSI-RS resources are counted from serving cell perspective. However, the related design on RS measurement as CSI acquisition has not been supported for mobility scenario or idle / inactive state, e.g., method to acquire RS measurement configuration for CSI acquisition, time to start performing RS measurement, method to enable RS measurement before or after a reception of a signaling, rule to activate or deactivate SP RS resource or set, etc.
[0018] In current networks, a channel state information (CSI) acquisition operation can be performed after user equipment UE is in connected state or a cell switch is completed, which will cause significant data rate degradation until a suitable modulation and coding scheme MCS, precoding matrix indicator PMI, channel quality indicator CQI, rank indicator RI is obtained by a base station or a network.
[0019] In order to ensure a high data quality for transmission, a CSI acquisition or RS measurement for CSI acquisition can be performed before mobility has been completed, or during mobility, during idle state or inactive state transited to connected state, before connected state, or, during random access procedure.
[0020] The techniques disclosed in the present document allow CSI acquisition to occur earlier than how it is achieved in the present day systems.
[0021] In this patent document, CSI acquisition or RS measurement as part of CSI acquisition or CSI reporting as part of CSI acquisition can be done on at least one of the following cases: mobility, handover, connected state, idle state, inactive state, random access produce, Cell free, or other possible case.
[0022] 2. Brief Overview of embodiment examples
[0023] In this patent document, mobility or handover can be at least one of the following: RRC based mobility or handover, Layer 3 based mobility or handover, Dual Active Protocol Stack (DAPS) , Condition Handover (CHO) , Layer1 / Layer 2 triggered mobility (LTM) , Conditional LTM, or other mobility or handover.
[0024] In this patent document, CSI acquisition can be at least one of the following:
[0025] Understanding-1: RS measurement, and CSI reporting operation;
[0026] Understanding-2: UL RS transmission or UL signal transmission;
[0027] Understanding-3: CSI reporting operation and UL RS transmission or UL signal transmission;
[0028] In this patent document, configuration information includes at least one of the following: one or more CSI reporting configurations; one or more RS resource configurations; one or more RS resource sets; one or more RS resources; RACH configuration; random access procedure related configuration; association between RS and RO / preamble; one or more cells or cell groups; measurement mode; CSI reporting mode; CSI acquisition mode; UL RS or signal transmission; indication to enable or disable or indicate one or more of a mode; indication to enable or disable or indicate at least one of: one or more of measurement mode, CSI reporting mode, CSI acquisition mode, RS or signal transmission mode, early CSI reporting, early RS measurement, early CSI acquisition, early RS or signal transmission, early CSI reporting during initial access or random access procedure or mobility, early CSI acquisition during initial access or random access procedure or mobility, early RS measurement during initial access or random access procedure or mobility, early RS or signal transmission during initial access or random access procedure or mobility; whether to enable or disable or indicate CSI reporting before a signaling or channel or signal is received; whether to enable or disable or indicate CSI reporting after a signaling or channel or signal is received or applied; whether to enable or disable or indicate RS measurement before a signaling or channel or signal is received; whether to enable or disable or indicate RS measurement after a signaling or channel or signal is received or applied; whether to enable or disable or indicate RS measurement before and after a signaling or channel or signal is received and / or applied; whether to enable or disable or indicate CSI acquisition before a signaling or channel or signal is received; whether to enable or disable or indicate CSI acquisition after a signaling or channel or signal is received or applied; whether to enable or disable or indicate RS or signal transmission before a signaling or channel or signal is received or transmitted; whether to enable or disable or indicate RS or signal transmission after a signaling or channel or signal is received or transmitted or applied.
[0029] In this patent document, at least one of configuration information can be provided or determined by a signaling or channel or signal or information, or UE capability, or pre-configuration or definition or default.
[0030] In this patent document, RS measurement or RS measurement mode can be one of the following:
[0031] Scheme-1-1: RS measurement can be performed before a reception of a signaling or channel or signal or information;
[0032] Scheme-1-2: RS measurement can be started before a reception of a signaling or channel or signal or information;
[0033] In some embodiments, RS measurement can continue to be performed after a reception or application of a signaling or channel or signal or information. In some embodiments, RS measurement can be performed before a signaling or channel or signal is received and can continue to be performed after the signaling or channel or signal is received or applied or taken effect.
[0034] Scheme-1-3: RS measurement can be performed after a reception or application of a signaling or a channel or a signal or an information;
[0035] In this patent document, CSI reporting or CSI reporting mode can be at least one of the following:
[0036] Scheme-2-1: CSI reporting is performed before a signaling or a channel or a signal is received,
[0037] Scheme-2-2: CSI reporting is performed before a signaling or a channel or a signal is applied or has taken effect,
[0038] Scheme-2-3: CSI reporting is performed after a signaling or a channel or a signal is received, or
[0039] Scheme-2-4: CSI reporting is performed after a signaling or a channel or a signal is applied or has taken effect.
[0040] In this patent document, CSI acquisition or CSI acquisition mode can be at least one of the following:
[0041] Scheme-3-1: RS measurement and CSI reporting are performed before a signaling or a channel or a signal or an information is received;
[0042] Scheme-3-2: RS measurement and CSI reporting are performed before a signaling or channel or a signal or an information is applied or has taken effect;
[0043] Scheme-3-3: RS measurement is performed before reception of a signaling or a channel or a signal or an information and CSI reporting is performed after reception of a signaling or a channel or a signal or an information;
[0044] Scheme-3-4: RS measurement is performed before a signaling or a channel or a signal or an information is applied or taken effect and CSI reporting is performed after reception of a signaling or a channel or a signal or an information;
[0045] Scheme-3-5: RS measurement is performed before reception of a signaling or a channel or a signal or an information and CSI reporting is performed after a signaling a or channel or a signal or an information is applied or taken effect;
[0046] Scheme-3-6: RS measurement is performed before a signaling or channel or signal or information is applied or taken effect and CSI reporting is performed after a signaling or channel or signal or information is applied or taken effect;
[0047] Scheme-3-7: RS measurement and CSI reporting are performed after reception of a signaling or a channel or a signal or an information; or
[0048] Scheme-3-8: RS measurement and CSI reporting are performed after a signaling or a channel or a signal or an information is applied or taken effect.
[0049] In some embodiments, the description “RS measurement is performed” can be replaced with “RS measurement starts to be performed. ” In some embodiments, “RS measurement can start to be performed before a signaling or channel or signal or information is received or applied or taken effect” can be understood as at least one of: “RS measurement can start to be performed before a signaling or channel or signal or information is received or applied or taken effect, ” and / or “RS measurement can continue to be performed after a signaling or channel or signal or information is received or applied or taken effect. ”
[0050] In this patent document, RS or signal transmission, or RS or signal transmission mode can be at least one of the following:
[0051] Scheme-4-1: RS or signal transmission are transmitted before a signaling or a channel or a signal or an information is received or transmitted or applied;
[0052] Scheme-4-2: RS or signal transmission are transmitted after a signaling or a channel or a signal or an information is received or transmitted or applied;
[0053] Scheme-4-3: RS or signal transmission are transmitted with a signaling or a channel or a signal or an information;
[0054] Scheme-4-4: RS or signal transmission are transmitted on UL resource scheduled by a random access response RAR, or RAR UL grant, or RAR fallback UL grant;
[0055] Scheme-4-5: RS or signal transmission are transmitted on UL resource that may be configured or indicated for MSG 3 or MSG 5 or first UL transmission.
[0056] In this patent document, at least one of configuration information can be provided or determined by a signaling or a channel or a signal or an information.
[0057] In this patent document, a signaling or a channel or a signal or an information can be at least one of: a radio resource control (RRC) , a medium access control (MAC) control element (CE) (MAC CE) , a downlink control information (DCI) , a Primary Synchronization Signal (PSS) , a Secondary Synchronization Signal (SSS) , a Physical Broadcast Channel (PBCH) , a Synchronization Signal Block (SSB) , a Reference signal (RS) , a Demodulation Reference Signal (DMRS) , a Physical Random Access CHannel (PRACH) , a Sounding Reference Signal (SRS) , a Preamble, a MSG 2 random access response (RAR) , an RAR uplink (UL) grant, a fallback RAR UL grant, a preamble in MSG A, data or PUSCH in MSG A, MSG B, MSG 3, MSG 4, system information, broadcast information, a master information Block (MIB) , system information block (SIB) , the remaining system information (RMSI) , other system information (OSI) , Physical Downlink Shared CHannel (PDSCH) , Physical Uplink Shared CHannel (PUSCH) , Physical Downlink Control CHannel (PDCCH) , Physical Uplink Control CHannel (PUCCH) , PDCCH order, or paging.
[0058] In this patent document, a MAC CE can be at least one of: a MAC CE for activating or deactivating TCI state, a MAC CE for activating or deactivating TCI state for serving cell, a MAC CE for activating or deactivating TCI state for candidate cell, a MAC CE for activating or deactivating TCI state for serving cell and / or candidate cell, a MAC CE for LTM cell switch command, a MAC CE for activating or deactivating one or more RS resources or sets, a MAC CE for activating or deactivating one or more RS resources or sets for serving cell, a MAC CE for activating or deactivating one or more RS resources or sets for candidate cell, a MAC CE for activating or deactivating one or more RS resources or sets for serving cell and / or candidate cell, a MAC CE for activating or deactivating one or more CSI reportings, a MAC CE for activating or deactivating one or more CSI reportings for serving cell, a MAC CE for activating or deactivating one or more CSI reportings for candidate cell, a MAC CE for activating or deactivating one or more CSI reportings for serving cell and / or candidate cell, a MAC CE for activating or deactivating one or more cells or cell groups, or other MAC CE.
[0059] In this patent document, random access procedure can be initiated by at least one of the following: a PDCCH order, or an LTM cell switch command MAC CE, or, a higher layer or RRC or a UE.
[0060] In this patent document, a random access procedure includes at least one of: a preamble transmission (MSG1) , a random access response (RAR) , a PUSCH transmission, a PDSCH transmission, a preamble transmission and PUSCH transmission (MSG A) , a preamble transmission in MSG A, a PUSCH transmission in MSG A, a RAR reception (MSG B) .
[0061] In this patent document, RAR may be carried by a PDCCH or PDSCH. In some embodiments, PUSCH can be scheduled by at least one of RAR UL grant, or a fallback RAR UL grant, or a signaling or channel or signal or information, or MSG 4.
[0062] In this patent document, the RS can be at least one of: CSI-RS, TRS (tracking reference signal) , PTRS (phase tracking reference signal) , DMRS, SSB, SRS (sounding reference signal) or other RS.
[0063] In this patent document, RS measurement can be replaced with CSI measurement.
[0064] In this patent document, a cell can be extended to or replaced with at least one of: a cell group, a carrier, a BWP, a carrier group, a BWP group, a transmission reception point (TRP) , or a TRP group.
[0065] In this patent document, a cell can be at least one of: a candidate cell, a serving cell, a source cell, a target cell, a non-serving cell, a neighbor cell. In this patent document, TRP can be at least one of: a current TRP, a candidate TRP, a source TRP, a target TRP, a TRP for a cell.
[0066] In this patent document, a wireless device can be User Equipment, Network, or Base station.
[0067] In this patent document, a MAC CE or RRC or LTM cell switch command MAC CE or DCI can be replaced with “a signaling or channel or signal or information” .
[0068] In this patent document, one or any combination of the following embodiments or methods also belong to the scope of this disclosure.
[0069] In this patent document, one or more embodiments or methods or features mentioned in the disclosure can be used independently or in combination.
[0070] In this patent document, the related design on RS measurement for CSI acquisition, or RS or signal transmission for CSI acquisition is provided.
[0071] 3. Embodiment Examples 1
[0072] This section provides, among other things, examples of how embodiments may configure reference signals.
[0073] In this patent document, an RS measurement can be based on an RS configuration or a CSI reporting configuration.
[0074] In some embodiments, CSI reporting configuration is associated with one or more RS configuration or RS resources or RS resource sets.
[0075] In some embodiments, CSI reporting configuration is associated with one or more cells or cell groups.
[0076] In some embodiments, one or more RS configuration or RS resources or RS resource sets or RS configurations are associated with one or more cells or cell groups.
[0077] In some embodiments, a CSI reporting configuration can be configured or obtained by an LTM CSI reporting configuration, or a CSI reporting configuration for one or more candidate cells or candidate cell groups.
[0078] In some embodiments, a CSI reporting configuration can be configured or obtained by a CSI reporting configuration, or a CSI reporting configuration for one or more serving or target cells or serving or target cell groups.
[0079] 3.1 RS configuration examples
[0080] Regarding RS configuration, at least one of the following can be implemented.
[0081] In some embodiments, one or more RS resource sets are configured;
[0082] In some embodiments, one or more RS resources are configured;
[0083] In some embodiments, one RS resource set includes one or more RS resources;
[0084] In some embodiments, one RS resource set includes one or more RS resources from one or more cells or cell groups, or same or different cells or cell groups;
[0085] In some embodiments, one or more RS resource sets can be configured for, or associated with one or more cells or cell groups, or same or different cells or cell groups;
[0086] In some embodiments, one or more RS resources can be configured for or associated with one or more cells or cell groups, or same or different cells or cell groups;
[0087] In some embodiments, one or more RS resources within one or more RS resource sets can be configured for, or associated with, one or more cells or cell groups;
[0088] In some embodiments, one or more RS resources are associated with or quasi co-located (QCLed) with one or more RSs. In some embodiments, RS can be provided or same as or associated with RS in a TCI state or a PDCCH order. In some embodiments, TCI state can be at least one of: configured TCI state, activated TCI state, indicated TCI state, configured TCI state for candidate cell, activated TCI state for candidate cell, indicated TCI state for candidate cell or target cell. In some embodiments, one or more CSI-RS resources or SRS resources are associated with or QCLed with one or more SSBs or TRS or SRS or DMRS. In some embodiments, CSI-RS and SSB can be associated with same or different cells or cell groups.
[0089] In some embodiments, one or more RS resources within one RS resource set can be RS resource (s) from one or more RS resource sets. In some embodiments, one or more RS resources can be one or more from one or more RS resource sets. In some embodiments, one or more RS resources or sets, or one or more RS resources within one RS resource set are associated with or configured with one or more cells or cell groups, or same or different cells or cell groups.
[0090] In some embodiments, one RS resource set includes one or more RS resources, or one or more subset of RS resources. In some embodiments, one or more RS resources, or one or more subset of RS resources are from one or more RS resource sets. In some embodiments, one or more RS resources or sets or subsets are configured from or associated with one or more cells or cell groups.
[0091] FIG. 1 shows an example of RS configuration, as an example 1. In some embodiments, one or more RS resources within a RS resource set or subset can be RS resource from same or different RS resource sets from same or different cell or cell groups, or RS resource from, one or more RS resource sets from same or different cell or cell groups.
[0092] In example 2, one or more RS resource sets are configured. In some embodiments, RS resource within a RS resource set is associated with one cell or cell group or identification.
[0093] In example 3, one RS resource set is composed of one or more RS resources or sets. In some embodiments, one or more RS resources or sets within one RS resource set are associated with one or more cells or cell groups.
[0094] In some embodiments, the number of RS resource set can be labeled as X1. In some embodiments, the maximum number of RS resource set can be labeled as X1max.
[0095] In some embodiments, the number of RS resource can be labeled as Y1. In some embodiments, the maximum number of RS resource can be labeled as Y1max.
[0096] In some embodiments, the number of RS resource within a RS resource set can be labeled as Z1. In some embodiments, the maximum number of RS resource within a RS resource set can be labeled as Z1max.
[0097] In some embodiments, RS transmission or measurement can be performed in a following manner: periodic, aperiodic, or semi-persistent (SP) .
[0098] In some embodiments, one or more RSs or RS resources or RS resource sets or the number of RS resources or the number of RS resource set or the maximum number of RS resource or the maximum number of RS resource set or RS transmission or RS measurement or RS configuration or RS resource or RS resource set for CSI acquisition can be configured or obtained or determined or triggered by a signaling or channel or signal or information or at least one of the following: RRC, MAC CE, DCI, system information, paging, synchronization channel or signal, relationship with MSG during random access procedure, broadcast channel or signal.
[0099] In some embodiments, RS configuration, or one or more RS resources or sets can be provided or configured or obtained or determined by a signaling or channel or signal or information.
[0100] In some embodiments, RRC is provided or configured or received before a reception of LTM cell switch command MAC CE, or a reception of a signaling or a signal / channel. In some embodiments, RS configuration, or, one or more RS resources or sets can be provided or configured or obtained or determined by RRC, or, RRC including RS configuration or one or more RS resources or sets for one or more candidate cells or cell groups, or RRC including CSI reporting configuration associated with RS configuration or one or more RS resources or sets for one or more candidate cells or cell groups, or, RRC including CSI reporting configuration for one or more candidate cell or cell group associated with RS configuration or one or more RS resources or sets before a reception of LTM cell switch command MAC CE, or a reception of a signaling or a signal or channel.
[0101] In some embodiments, RRC provides or configures RS configuration or RS resource or RS resource set associated with CSI reporting configuration for LTM or candidate cell.
[0102] In some embodiments, one or more RS configurations or RS resources or RS resource sets are associated with one or more candidate cells.
[0103] In some embodiments, RS configuration or RS resource or RS resource set for CSI acquisition for one or more candidate cells can be provided or configured by RRC before a reception of LTM cell switch command MAC CE, or a reception of a signaling or a signal / channel.
[0104] In some embodiments, RS configuration, or, one or more RS resources or sets can be provided or configured or obtained or determined by RRC, or RRC corresponding to one or more target or serving configuration index provided in a MAC CE or signaling, or RRC including CSI reporting configuration associated with RS configuration or one or more RS resources or sets for one or more target or serving cells or cell groups, or, RRC including CSI reporting configuration for one or more target or serving cell or cell group associated with RS configuration or one or more RS resources or sets provided in a MAC CE or signaling.
[0105] In some embodiments, RS configuration or RS resource or RS resource set for CSI acquisition can be provided or configured by RRC provided in a MAC CE or signaling.
[0106] In some embodiments, RS configuration or RS resource or RS resource set for CSI acquisition can be provided or configured by RRC corresponding to one or more target cell configuration or one or more target or serving configuration index provided in a MAC CE or signaling.
[0107] In some embodiments, RS configuration or RS resource or RS resource set is associated with CSI reporting configuration for target cell or serving cell.
[0108] In some embodiments, RS configuration or RS resource or RS resource set is associated with a serving cell or a target cell.
[0109] In some embodiments, the number of RS resource set, the maximum number of RS resource set, the number of RS resource, the maximum number of RS resource, the number of RS resource within a RS resource set, or the maximum number of RS resource within a RS resource set can be determined by a signaling or signal or channel or information or UE capability.
[0110] In some embodiments, one or more RS resources are associated with or quasi-co-located (QCLed) with or same as one or more RSs.
[0111] In some embodiments, one or more RS resources are associated with or QCLed with or same as one or more RSs provided in one or more TCI states.
[0112] In some embodiments, one or more RS resources are associated with or QCLed with or same as one or more RSs provided in one or more TCI states for one or more cells or cell groups.
[0113] In some embodiments, one or more RS resources are associated with or QCLed with or same as one or more RSs for determining RACH occasion.
[0114] In some embodiments, one or more RS resources are associated with or QCLed with or same as one or more RSs for determining RACH occasion for one or more cells or cell groups.
[0115] In some embodiments, one or more RS resources or sets can be one or more specific RS resources or sets.
[0116] In some embodiments, one or more RS resources are associated with or QCLed with or same as one or more RACH occasions or preambles.
[0117] 4. Embodiment Examples 2
[0118] This section provides some example embodiments, among other things, for the related operations for CSI acquisition.
[0119] This patent document discloses various embodiment examples of at least one of RS measurement operation or mode, CSI reporting operation or mode, CSI acquisition operation or mode, and RS or signal transmission or mode.
[0120] In some embodiments, at least one of RS measurement operation or mode, CSI reporting operation or mode, CSI acquisition operation or mode, RS or signal transmission or mode, or which one or more of CSI acquisition or CSI reporting or RS measurement or RS or signal transmission mode, and / or whether to trigger or enable or perform early CSI acquisition or RS transmission or CSI reporting or RS measurement is determined or configured or enabled or disabled or indicated or triggered by at least one of the following:
[0121] Option-1: UE capability;
[0122] Option-2: RRC configuration or signaling;
[0123] Option-3: MAC CE signaling;
[0124] Option-4: DCI signaling;
[0125] Option-5: pre-definition or default;
[0126] Option-6: signaling or channel or signal or information.
[0127] In some embodiments, at least one of the following items can be configured or indicated or enabled or disabled by at least one of: RRC, MAC CE, DCI, a pre-configuration, a pre-definition, default, UE capability, or a signaling or a channel or a signal or an information.
[0128] The items include: whether to enable RS measurement, or RS or signal transmission before a signaling or channel or signal is received or applied or taken effect; whether to enable CSI acquisition or early CSI acquisition, or whether to enable CSI reporting or RS transmission or early CSI reporting or early RS transmission, or whether to enable RS measurement or early RS measurement, or whether to enable RS measurement, or RS or signal transmission after a signaling or channel or signal is received or applied or taken effect; whether to enable RS measurement, or RS or signal transmission before and after a signaling or channel or signal is received or applied or taken effect; whether to enable CSI reporting before a signaling or channel or signal is received or applied or taken effect; whether to enable CSI reporting after a signaling or channel or signal is received or applied or taken effect; whether to enable CSI reporting before and after a signaling or channel or signal is received or applied or taken effect; whether to enable RS measurement and CSI reporting before a signaling or channel or signal is received or applied or taken effect; whether to enable RS measurement and CSI reporting after a signaling or channel or signal is received or applied or taken effect; whether to enable RS measurement and CSI reporting before and after a signaling or channel or signal is received or applied or taken effect; whether to enable RS measurement before a signaling or channel or signal is received or applied or taken effect, and enable CSI reporting after a signaling or channel or signal is received or applied or taken effect.
[0129] In some embodiments, UE can report or support at least one of the following capability: -
[0130] -RS measurement,
[0131] -RS or signal transmission before reception of a signaling or channel or signal or information;
[0132] -RS measurement, or RS or signal transmission before a signaling or channel or signal or information is applied or taken effect;
[0133] -RS measurement, or RS or signal transmission after reception of a signaling or channel or signal or information;
[0134] -RS measurement, or RS or signal transmission after a signaling or channel or signal or information is applied or taken effect;
[0135] -starting RS measurement before reception of a signaling or channel or signal or information;
[0136] -starting RS measurement before a signaling or channel or signal or information is applied or taken effect;
[0137] -CSI reporting or RS or signal transmission before reception of a signaling or channel or signal or information;
[0138] -CSI reporting or RS or signal transmission before a signaling or channel or signal or information is applied or taken effect;
[0139] -CSI reporting or RS or signal transmission after reception of a signaling or channel or signal or information;
[0140] -CSI reporting or RS or signal transmission after a signaling or channel or signal or information is applied or taken effect;
[0141] -the number of candidate cell for CSI acquisition;
[0142] -the maximum number of candidate cell for CSI acquisition;
[0143] -the number of RS resource or set for one or more candidate cell and / or serving cell for CSI acquisition;
[0144] -the maximum number of RS resource or set for one or more candidate cell and / or serving cell for CSI acquisition;
[0145] -the number of CSI reporting for one or more candidate cell and / or serving cell for CSI acquisition;
[0146] -the number of port for one or more candidate cell and / or serving cell for CSI acquisition;
[0147] -the maximum number of port for one or more candidate cell and / or serving cell for CSI acquisition;
[0148] -the number of active RS resource or set for one or more candidate cell and / or serving cell for CSI acquisition;
[0149] -the maximum number of active RS resource or set for one or more candidate cell and / or serving cell for CSI acquisition;
[0150] -the number of active port for one or more candidate cell and / or serving cell for CSI acquisition;
[0151] -the maximum number of active port for one or more candidate cell and / or serving cell for CSI acquisition;
[0152] -the number of port for one or more RS resources for one or more candidate cell and / or serving cell;
[0153] -the maximum number of port for one or more RS resources for one or more candidate cell and / or serving cell;
[0154] -the number of port for one or more active RS resources for one or more candidate cell and / or serving cell;
[0155] -the maximum number of port for one or more active RS resources for one or more candidate cell and / or serving cell;
[0156] -the number of active port for one or more active RS resources for one or more candidate cell and / or serving cell;
[0157] -the maximum number of active port for one or more active RS resources for one or more candidate cell and / or serving cell;
[0158] -the number of active RS resource or set for one or more candidate cell and / or serving cell;
[0159] -the maximum number of active RS resource or set for one or more candidate cell and / or serving cell;
[0160] In some embodiments, RRC and / or MAC CE and / or DCI and / or a signaling or channel or signal or information can configure or indicate or activate or deactivate or update or enable or disable at least one of:
[0161] -RS measurement operation or mode;
[0162] -CSI reporting operation or mode;
[0163] -CSI acquisition operation or mode;
[0164] -RS or signal transmission or mode;
[0165] -RS measurement before reception of a signaling or channel or signal or information;
[0166] -RS measurement before a signaling or a channel or a signal or an information is applied or taken effect;
[0167] -RS measurement after reception of a signaling or channel or signal or information;
[0168] -RS measurement after a signaling or channel or signal or information is applied or taken effect;
[0169] -starting RS measurement before reception of a signaling or channel or signal or information;
[0170] -starting RS measurement before a signaling or channel or signal or information is applied or taken effect;
[0171] -CSI reporting, or RS or signal transmission before reception of a signaling or channel or signal or information;
[0172] -CSI reporting, or RS or signal transmission before a signaling or channel or signal or information is applied or taken effect;
[0173] -CSI reporting, or RS or signal transmission after reception of a signaling or channel or signal or information;
[0174] -CSI reporting, or RS or signal transmission after a signaling or channel or signal or information is applied or taken effect;
[0175] -RS measurement and CSI reporting before reception of a signaling or channel or signal or information;
[0176] -RS measurement and CSI reporting before a signaling or channel or signal or information is applied or taken effect;
[0177] -RS measurement before reception of a signaling or channel or signal or information and CSI reporting after reception of a signaling or channel or signal or information;
[0178] -RS measurement before a signaling or channel or signal or information is applied or taken effect and CSI reporting after reception of a signaling or channel or signal or information;
[0179] -RS measurement before reception of a signaling or channel or signal or information and CSI reporting after a signaling or channel or signal or information is applied or taken effect;
[0180] -RS measurement before a signaling or channel or signal or information is applied or taken effect and CSI reporting after a signaling or channel or signal or information is applied or taken effect;
[0181] -RS measurement and CSI reporting after reception of a signaling or channel or signal or information;
[0182] -RS measurement and CSI reporting after a signaling or channel or signal or information is applied or taken effect;
[0183] -starting RS measurement before reception of a signaling or channel or signal or information and CSI reporting after reception of a signaling or channel or signal or information;
[0184] -starting RS measurement before a signaling or channel or signal or information is applied or taken effect and CSI reporting after reception of a signaling or channel or signal or information;
[0185] -starting RS measurement before reception of a signaling or channel or signal or information and CSI reporting after a signaling or channel or signal or information is applied or taken effect;
[0186] -starting RS measurement before a signaling or channel or signal or information is applied or taken effect and CSI reporting after a signaling or channel or signal or information is applied or taken effect;
[0187] -RS configuration for CSI acquisition;
[0188] -CSI reporting configuration for CSI acquisition; or
[0189] -a cell for CSI acquisition.
[0190] In some embodiments, one or more of schemes or modes mentioned in this patent document can be configured as a pre-defined or a default scheme. In some embodiments, one or more of schemes mentioned in this patent document can be configured as a pre-defined or a default scheme if not configured or indicated or enabled.
[0191] In some embodiments, the time domain behavior of RS or signal transmission, or RS measurement can be configured as periodic, semi-persistent or aperiodic.
[0192] In some embodiments, a device performs RS measurement periodically. In some embodiments, a device transmits RS transmission periodically.
[0193] 5. Embodiment Examples 3
[0194] This section describes, among other things, time-domain behavior of RS transmissions and relationship between occurrences of two operations including RS configuration or measurement operation and another operation in the wireless network.
[0195] In various embodiments, RS configuration, or RS measurement configuration, or one or more RS resources, or one or more RS resource sets can be for or associated with one or more candidate cells or cell group, and / or target or serving cell or cell groups.
[0196] In some embodiments, RS configuration, or RS measurement configuration, or one or more RS resources, or one or more RS resource sets can be enabled or taken effect or used for at least one of the following cases:
[0197] Case-1: a signaling or channel or signal or information is received;
[0198] Case-2: a signaling or channel or signal or information is applied or taken effect;
[0199] Case-3: a RRC signaling or RRC configuration is received;
[0200] Case-4: a RRC configuration is completed;
[0201] Case-5: after an offset relative to reception of a signaling or channel or signal or information;
[0202] Case-6: after an offset relative to application of a signaling or channel or signal or information;
[0203] Case-7: after an offset relative to reception of a RRC signaling or RRC configuration;
[0204] Case-8: after an offset relative to completion of a RRC signaling or RRC configuration;
[0205] Case-9: a MAC CE for activating or deactivating TCI state for candidate cell is received;
[0206] Case-10: a MAC CE for activating or deactivating TCI state for candidate cell is applied or taken effect;
[0207] Case-11: a PDCCH order is received;
[0208] Case-12: a MAC CE or an LTM cell switch command MAC CE is received;
[0209] Case-13: a MAC CE or an LTM cell switch command MAC CE is applied or taken effect;
[0210] Case-14: RRC configuration corresponding to one or more target cells or serving cells, or target or serving configuration indexes provided by a MAC CE or an LTM cell switch command MAC CE or a signaling or channel or signal or information is completed or applied or received; or
[0211] Case-15: an offset relative to completion or application or reception of RRC configuration corresponding to one or more target cells or serving cells , or target or serving configuration indexes provided by a MAC CE or an LTM cell switch command MAC CE or a signaling or channel or signal or information.
[0212] In this patent document, an offset or a set of offset can be configured or indicated by at least one of: a signaling or channel or signal or information, or pre-definition, or UE capability.
[0213] In this patent document, the unit of offset can be at least one of: symbol, slot, frame, subframe, second, millisecond, microsecond, nanosecond, any combination of above.
[0214] In this patent document, offset value can be an integer larger than or equal to 0 or 1. In some examples, offset can be one of: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 or any combination of above.
[0215] In some embodiments, an offset can be a minimum value or a maximum value. In some embodiments, an offset or a set of offsets can be provided or determined by a signaling or signal or channel or information or UE capability or pre-definition or pre-configuration.
[0216] In some embodiments, RS measurement, or RS or signal transmission can be triggered or initiated or started or performed or enabled, based on at least one of the following:
[0217] Scheme-0: a signaling or channel or signaling or information;
[0218] Scheme-1: a reception of a signaling or channel or signal or information;
[0219] Scheme-2: application of a signaling or channel or signal or information;
[0220] Scheme-3: a reception of a RRC signaling;
[0221] Scheme-4: RRC configuration is completed;
[0222] Scheme-5: a MAC CE or an LTM cell switch command MAC CE;
[0223] Scheme-5-1: a MAC CE or an LTM cell switch command MAC CE is received;
[0224] Scheme-6: a MAC CE or an LTM cell switch command MAC CE is applied or taken effect;
[0225] Scheme-7: HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE;
[0226] Scheme-8: an offset after a reception of a signaling or channel or signal or information;
[0227] Scheme-9: an offset relative to application of a signaling or channel or signal or information;
[0228] Scheme-10: an offset relative to reception of a RRC signaling or RRC configuration;
[0229] Scheme-11: an offset relative to completion of a RRC signaling or RRC configuration;
[0230] Scheme-12: an offset relative to HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE;
[0231] Scheme-13: an offset relative to reception of a MAC CE or an LTM cell switch command MAC CE;
[0232] Scheme-14: an offset relative to application of a MAC CE or an LTM cell switch command MAC CE;
[0233] Scheme-15: RRC configuration corresponding to one or more target cells or serving cells , or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information is completed or applied or received;
[0234] Scheme-16: an offset relative to completion or application or reception of RRC configuration corresponding to one or more target cells or serving cells , or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information;
[0235] Scheme-17: a reception of a PDCCH order or a reception of a signaling to initiate initial random access procedure or a reception of information during random access procedure;
[0236] Scheme-18: a reception of a MAC CE for TCI state activation or deactivation or indication for serving cell and / or candidate cell;
[0237] Scheme-19: an application of a MAC CE for TCI state activation or deactivation or indication for serving cell and / or candidate cell.
[0238] In some embodiments, RS to measure is same as or associated with or QCLed with RS to determine or associate with RACH occasion. In some embodiments, preamble transmission is initiated by at least one of PDCCH order or a MAC CE or an LTM cell switch command MAC CE or higher layer signaling or configuration.
[0239] In some embodiments, RS to measurement is same as or associated with or QCLed with RS provided in TCI state for candidate cell and / or serving cell or UL resource or PUCCH or PUSCH. In some embodiments, TCI state can be at least one of: activated TCI state, configured TCI state, indicated TCI state, activated TCI state for candidate cell, configured TCI state for candidate cell, indicated TCI state for candidate cell, activated LTM TCI state, configured LTM TCI state, indicated LTM TCI state.
[0240] In some embodiments, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set that has enabled or configured or activated before a reception of a MAC CE or a LTM cell switch command MAC CE or a signaling or channel or signal or information can continue to be enabled or activated after a reception of a MAC CE or a LTM cell switch command MAC CE or a signaling or channel or signal or information. In some embodiments, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set continue to be or remain enabled or activated after a reception of a MAC CE or an LTM cell switch command MAC CE or a signaling or channel or signal or information. In some embodiments, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set that has enabled or configured or activated before a reception of a MAC CE or a LTM cell switch command MAC CE or a signaling or channel or signal or information is disabled or deactivated after a reception of a MAC CE or a LTM cell switch command MAC CE or a signaling or channel or signal or information.
[0241] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set ID same as that for LTM can be enabled or configured or activated.
[0242] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set for LTM or one or more candidate cells or cell groups is disabled or deactivated or enabled or activated until RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set is configured or updated. In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set for LTM or one or more candidate cells or cell groups is disabled or deactivated. In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set for one or more candidate cells or cell groups except target cell is disabled or deactivated. In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS configuration or RS resource configuration or RS resource set configuration or RS resource or RS resource set for one or more target or serving cell or cell groups is enabled or activated.
[0243] 6. Embodiment Examples 4
[0244] This section provides, among other things, a time-domain behavior of RS measurements and RS configuration, specifically for semi-persistent transmissions.
[0245] In some embodiments, one or more RS resources or RS resource sets can be one or more specific RS resources or RS resource sets. In some embodiments, one or more specific RS resources or RS resource sets can be configured by RRC or a signaling or channel or signal or information.
[0246] In some embodiments, a signaling or channel or signal or information is used to activate or deactivate or update one or more RS resources or RS resource sets.
[0247] In some embodiments, a signaling or channel or signal or information is used to activate or deactivate or update one or more RS resources or RS resource sets for one or more cells or cell groups.
[0248] In some embodiments, a single signaling or channel or signal or information is used to activate or deactivate or update one or more RS resources or RS resource sets for one cell or cell group.
[0249] In some embodiments, a single signaling or channel or signal or information is used to activate or deactivate or update one or more RS resources or RS resource sets for more cells or cell groups.
[0250] In some embodiments, a single signaling or channel or signal or information is used to activate or deactivate or update one or more RS resources or RS resource sets for serving cell and / or candidate cell, or serving cell groups and / or candidate cell groups.
[0251] In some embodiments, a signaling or channel or signal or information to activate or deactivate or update one or more RS resources or RS resource sets for candidate cell, or candidate cell groups can be same or different with a signaling or channel or signal or information to activate or deactivate or update one or more RS resources or RS resource sets for serving cell or serving cell groups.
[0252] In some embodiments, a field to activate or deactivate or update or trigger one or more RS resources or RS resource sets or RS configuration or RS or signal transmission is included in a signaling or channel or signal or information.
[0253] In some embodiments, a field of cell identification is included in a signaling or channel or signal or information.
[0254] In some embodiments, a signaling can be at least one of MAC CE or DCI. In some embodiments, a MAC CE can be at least one of: LTM cell switch command MAC CE, TCI state activation or deactivation MAC CE for candidate cell, other MAC CE.
[0255] In some embodiments, one or more RS resources or RS resource sets can be activated or deactivated or updated from one or more RS resources or RS resource sets provided by at least one of: RRC, TCI state, TCI state for candidate cell, activated TCI state, activated TCI state for candidate cell, configured TCI state, configured TCI state for candidate cell, PDCCH order.
[0256] In some embodiments, one or more RS resources or RS resource sets can be activated or deactivated or updated after or based on a signaling or channel or signal or information, or a reception of a MAC CE or a signaling or channel or signal or information, or after an application of a MAC CE or a signaling or channel or signal or information. In some embodiments, a MAC CE can be used to activate or deactivate or update TCI state for candidate cell.
[0257] In some embodiments, one or more RS resources or RS resource sets can be activated or deactivated or updated after or based on a reception of a signaling or channel or signal or information or a PDCCH order.
[0258] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel / or signal, activated one or more RS resources or RS resource sets for target cell or serving cell are retained or remains activated.
[0259] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, UE retains activated one or more RS resources or RS resource sets for target cell.
[0260] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, one or more activated RS resources or RS resource sets for target cell and / or candidate cell are retained or remains activated.
[0261] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, one or more activated RS resources or RS resource sets for one or more candidate cells and / or serving cell are deactivated or disabled.
[0262] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, UE retains activated one or more RS resources or RS resource sets for target cell and / or candidate cell.
[0263] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, UE only retains specific one or more activated RS resources or RS resource sets for target cell and / or candidate cell.
[0264] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, only specific one or more activated RS resources or RS resource sets for target cell and / or candidate cell are retained or remains activated.
[0265] In some embodiments, after reception of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resources or RS resource set with same identification of RS resources or RS resource set for candidate cell is retained or remains activated.
[0266] In some embodiments, one or more RS resources or RS resource sets can be activated or deactivated or updated by a LTM cell switch command MAC CE, or a MAC CE, or a reception of a MAC CE, or application of a MAC CE, or a reception of a LTM cell switch command MAC CE, or application of a LTM cell switch command MAC CE, or a signaling or channel or signal or information.
[0267] In some embodiments, a field to activate or deactivate or update or trigger one or more RS resources or RS resource sets or RS or signal transmission is included in an LTM cell switch command MAC CE, or a MAC CE or a signaling or channel or signal or information.
[0268] In some embodiments, a field of cell identification is included in a LTM cell switch command MAC CE, or a MAC CE or a signaling or channel or signal or information.
[0269] In some embodiments, one or more RS resources or RS resource sets or RS or signal transmission can be activated or deactivated or updated or triggered by a MAC CE or a signaling or channel or signal or information. In some embodiments, a MAC CE is received before or after a reception of a LTM cell switch command MAC CE, or application of an LTM cell switch command MAC CE.
[0270] In some embodiments, one or more RS resources or RS resource sets or RS or signal transmission can be activated or deactivated or updated or triggered by information during random access procedure, or random access procedure. In some embodiments, random access procedure can be initiated by a MAC CE or an LTM cell switch command MAC CE or high layer.
[0271] In some embodiments, one or more RS resources or RS resource sets or RS or signal transmission can be activated or deactivated or updated or triggered based on preamble transmission, or RAR or RAR UL grant or fallback RAR, or MSG A, or MSG 3, MSG B, or MSG 4.
[0272] In some embodiments, semi-persistent RS or signal to measure or transmission can be triggered or initiated or started or performed or enabled or activated or deactivated, based on at least one of the following:
[0273] Scheme-0: a signaling or channel or signal or information;
[0274] Scheme-1: a reception of a signaling or channel or signal or information;
[0275] Scheme-2: application of a signaling or channel or signal or information;
[0276] Scheme-3: a MAC CE or an LTM cell switch command MAC CE is received;
[0277] Scheme-4: a MAC CE or an LTM cell switch command MAC CE is applied or taken effect;
[0278] Scheme-5: HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE;
[0279] Scheme-6: an offset after a reception of a signaling or channel or signal or information;
[0280] Scheme-7: an offset relative to application of a signaling or channel or signal or information;
[0281] Scheme-8: an offset relative to HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE;
[0282] Scheme-9: an offset relative to reception of a MAC CE or an LTM cell switch command MAC CE;
[0283] Scheme-10: an offset relative to application of a MAC CE or an LTM cell switch command MAC CE;
[0284] Scheme-11: RRC configuration corresponding to one or more target cells or serving cells or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information is completed or applied or received;
[0285] Scheme-12: an offset relative to completion or application or reception of RRC configuration corresponding to one or more target cells or serving cells, or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information;
[0286] Scheme-13: a reception of a MAC CE after RRC configuration corresponding to one or more target cells or serving cells, or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information is completed or applied or received;
[0287] Scheme-14: an offset relative to a reception of a MAC CE after completion or application or reception of RRC configuration corresponding to one or more target cells or serving cells, or target or serving configuration indexes provided by a MAC CE or a LTM cell switch command MAC CE, or a signaling or channel or signal or information;
[0288] Scheme-15: preamble transmission or MSG 3 transmission or MSG A transmission or preamble transmission in MSG A or PUSCH or data transmission in MSG A;
[0289] Scheme-16: a reception of a PDCCH order or a reception of a signaling to initiate initial random access procedure or a reception of information during random access procedure; or
[0290] Scheme-17: a reception of RAR or RAR UL grant or fallback RAR, or MSG 4, or MSG B;
[0291] Scheme-18: an offset after a reference point or information or location.
[0292] In some embodiments, a reference point can be at least one of: a signaling or channel or signal or information, a reception or application of a signaling or channel or signal or information, a signaling or information to trigger RS measurement or transmission, or RS or signal transmission, a reception of a LTM cell switch command MAC CE, an application of a LTM cell switch command MAC CE, starting or ending to transmit preamble, RAR, MSG 2, a DCI, MSG 3, MSG 4, RS resource, or CSI reference resource.
[0293] In some embodiments, a signaling to initiate initial random access procedure can be at least one of: a MAC CE or an LTM cell switch command MAC CE or high layer.
[0294] In some embodiments, one or more RS resources or RS resource sets are deactivated or updated until reception of a signaling or signal or channel or information to activate or deactivate or update one or more RS resources or RS resource sets.
[0295] In some embodiments, a signaling or information to trigger or enable or activate or deactivate RS measurement or transmission or resource can be same or different with a signaling or information trigger or enable or activate or deactivate CSI reporting. In some embodiments, a signaling or information to trigger or enable or activate or deactivate RS measurement or transmission or resource, and / or a signaling or information trigger or enable or activate or deactivate CSI reporting can be earlier or later than or a signaling or channel or signal or information or an LTM cell switch command MAC CE.
[0296] 7. Embodiment Examples 5
[0297] This section discloses, among other things, various restrictions observed by embodiments and activation of RS resources.
[0298] In some embodiments, at least one of the following can be considered:
[0299] 7.1 Restriction of RS resource or RS or signal transmission
[0300] In some embodiments, RS resource to measure for CSI acquisition or RS resource for CSI measurement is before or on CSI reference resource.
[0301] In some embodiments, measurement on RS resource before or in CSI reference resource can be used to calculate CSI or CSI for CSI acquisition.
[0302] In some embodiments, measurement result from latest or most recent RS resource or measurement on latest or most recent RS resource is used for CSI acquisition or CSI reporting or CSI calculation.
[0303] In some embodiments, measurement result from RS resource before or in CSI reference resource is used for CSI acquisition.
[0304] In some embodiments, measurement result from latest or most recent RS resource or measurement on latest or most recent RS resource before or in CSI reference resource is used for CSI acquisition or CSI reporting or CSI calculation.
[0305] In some embodiments, a gap between CSI reference resource and CSI reporting should meet a specific requirement or a threshold. In some embodiments, a gap between a signaling or channel or signal triggering RS transmission or measurement and RS transmission or measurement needs to meet a specific requirement or a threshold;
[0306] In some embodiments, a specific requirement or threshold is determined based on at least one of: UE capability, SCS, the number of port, the number of RS resource, preparing time of PUSCH, time of CSI calculation, a signaling or channel or signal or information.
[0307] In some embodiments, CSI reference resource can be before or after a reception or application of a MAC CE or LTM cell switch command MAC CE or a signaling or channel or signal or information.
[0308] In some embodiments, RS resource is a RS resource that is before or on CSI reference resource and / or after a signaling or channel or signal or a MAC CE or an LTM cell switch command MAC CE is received or applied.
[0309] In some embodiments, RS resource is a latest or most recent RS resource relative to CSI reference resource.
[0310] In some embodiments, RS resource is an active or valid RS resource.
[0311] 7.2 Examples of Active (or activated) CSI-RS resources
[0312] In some embodiments, in any slot or time interval, a UE or a wireless device is not expected to have more active CSI-RS ports and / or active CSI-RS resources than reported as capability.
[0313] In some embodiments, for the case that RS measurement or RS or signal transmission can start or perform before a reception or application of a LTM cell switch command MAC CE or a signaling or channel or signal or information, at least one of the following capability can be considered:
[0314] - The number of active CSI-RS or SRS resources;
[0315] - The number of active Tx ports in one or more resources;
[0316] - Max#of active Tx ports in one or more resources;
[0317] - Max#of active CSI-RS or SRS resources;
[0318] - Total#of active CSI-RS or SRS resource;
[0319] - Total#of active Tx ports in one or more active CSI-RS or SRS resources;
[0320] - Max#of active Tx ports in one or more resource for serving cell;
[0321] - Max#of active Tx ports in one or more resource for candidate cell;
[0322] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) for serving cell;
[0323] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) for candidate cell;
[0324] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) across serving cell and / or candidate cell;
[0325] - Max#of active CSI-RS or SRS resource (s) for serving cell;
[0326] - Max#of active CSI-RS or SRS resource (s) for candidate cell;
[0327] - Max#of active CSI-RS or SRS resource (s) across serving cell and / or candidate cell;
[0328] - Total#of active CSI-RS or SRS resource for serving cell;
[0329] - Total#of active CSI-RS or SRS resource for candidate cell; or
[0330] - Total#of active CSI-RS or SRS resource across serving cell and / or candidate cell;
[0331] In some embodiments, for the case that RS measurement or RS or signal transmission after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, at least one of the following capability can be considered:
[0332] - The number of active CSI-RS or SRS resources;
[0333] - The number of active Tx ports in one or more resources;
[0334] - Max#of active Tx ports in one or more resources;
[0335] - Max#of active CSI-RS or SRS resources;
[0336] - Total#of active CSI-RS or SRS resource; or
[0337] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) ;
[0338] - Max#of active Tx ports in one or more resource for serving cell;
[0339] - Max#of active Tx ports in one or more resource for target cell;
[0340] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) for serving cell;
[0341] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) for target cell;
[0342] - Total#of active Tx ports in one or more active CSI-RS or SRS resource (s) across serving cell and / or target cell;
[0343] - Max#of active CSI-RS or SRS resource (s) for serving cell;
[0344] - Max#of active CSI-RS or SRS resource (s) for target cell;
[0345] - Max#of active CSI-RS or SRS resource (s) across serving cell and / or target cell;
[0346] - Total#of active CSI-RS or SRS resource for serving cell;
[0347] - Total#of active CSI-RS or SRS resource for target cell; or
[0348] - Total#of active CSI-RS or SRS resource across serving cell and / or target cell;
[0349] In some embodiments, for the case that RS measurement or RS or signal transmission can start or perform before a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, at least one of the following can be considered:
[0350] - Alt-1: RS resource (s) or activate RS resource (s) from one or more RS resources or sets associated with LTM CSI reporting configuration or CSI reporting configuration for one or more candidate cell or cell group are counted;
[0351] - Alt-2: RS resource (s) or activate RS resource (s) from one or more RS resources or sets associated with LTM CSI reporting configuration or CSI reporting configuration for one or more candidate cell or cell group, and one or more RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving cell are counted;
[0352] - Alt-3: RS resource (s) or activate RS resource (s) from one or more RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving cell are counted or not counted;
[0353] - Alt-4: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration or CSI reporting configuration for one or more candidate cell or cell group, or one or more candidate cell or cell group except one or more target cell and / or serving cell are not counted;
[0354] - Alt-5: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving and / or target cell are counted;
[0355] - Alt-6: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving cells, and / or, LTM CSI reporting configuration or CSI reporting configuration for one or more target or candidate cells are counted.
[0356] In some embodiments, for the case that RS measurement or RS or signal transmission after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, at least one of the following can be considered:
[0357] - Case-1: before a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving or target cell are counted;
[0358] - Case-2: before a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration or CSI reporting configuration for one or more candidate or target cell or cell group are not counted;
[0359] - Case-2-1: before a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving cells, and / or, LTM CSI reporting configuration or CSI reporting configuration for one or more target or candidate cells are counted or not counted;
[0360] - Case-3: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration or CSI reporting configuration for one or more candidate cell or cell group, or one or more candidate cell or cell group except one or more target cell and / or serving cell are not counted;
[0361] - Case-4: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving and / or target cell are counted;
[0362] - Case-5: after a reception of a LTM cell switch command MAC CE or a signaling or channel or signal or information, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration or CSI reporting configuration for one or more serving cells, and / or, LTM CSI reporting configuration or CSI reporting configuration for one or more target cells or candidate cells are counted or not counted.
[0363] 7.3 Examples of activation of RS resources
[0364] For semi-persistent RS, RS resource is active in a duration of time starting from the start or end of when a signaling or channel or signal or an information to activate SP RS is applied or received, and / or ending at the start or end of when a signaling or channel or signal or information to deactivate SP RS is applied or received. In some embodiments, a signaling or channel or signal or information to activate and / or deactivate SP RS can same or different.
[0365] For periodic RS, RS resource is active in a duration of time starting when the periodic RS or CSI-RS is configured by higher layer signaling, or a signaling or channel or signal or information, or a signaling or channel or signal or information to trigger periodic RS or CSI-RS is received or applied, and / or ending when the periodic RS or CSI-RS configuration is released or a signaling or channel or signal or information, or a signaling or channel or signal or information to stop or disable periodic RS or CSI-RS is applied or received. Where the rule to stop or disable P RS or CSI-RS can be refer to method mentioned in this patent document.
[0366] For semi-persistent RS, RS resource is active in a duration of time starting from the start or end of when a first MAC CE to activate SP RS or CSI-RS is applied or received, and / or ending at the start or end of when a second MAC CE to deactivate SP RS or CSI-RS is applied. In some embodiments, a first or second MAC CE can be one of: LTM CSC MAC CE, a MAC CE after LTM CSC MAC CE.
[0367] For periodic RS, RS resource is active in a duration of time starting when RRC carrying the periodic RS or CSI-RS corresponding to target configuration ID in LTM CSC MAC CE is completed received, or LTM CSC MAC CE is received or applied, and / or ending when the periodic RS or CSI-RS configuration is released or reconfiguration or CSI reporting corresponding to periodic RS or CSI-RS configuration is transmitted.
[0368] For aperiodic RS, RS resource is active in a duration of time starting from the start or end of a signaling or channel or signal or information, or a signaling or channel or signal or information is received or applied, or a signaling or channel or signal or information including a field to trigger RS or a request, and / or ending at the start or end of UL resource carrying a CSI reporting or RS transmission, or CSI reporting associated with aperiodic RS.
[0369] In some embodiments, a signaling or channel or signal or information includes at least one of: SRS request; CSI request; one or more RS resources or sets; one or more CSI reporting configuration; one or more trigger states; whether to trigger or enable or indicate or activate or disable or deactivate RS or signal transmission or RS measurement or one or more RS resources or sets or CSI reporting configuration; UL resource; offset to transmit RS or measurement RS; whether to trigger CSI acquisition or early CSI acquisition; whether to trigger RS measurement or early RS measurement, indication to indicate CSI acquisition or RS measurement or CSI reporting or RS transmission mode or method.
[0370] In some examples, if channel reciprocity is supported, a wireless device can obtain CSI by receiving UL RS or signal transmitted by another wireless device. Otherwise, a wireless device can obtain CSI by CSI reporting transmitted by another wireless device.
[0371] 8. Implementation Embodiments
[0372] FIG. 2 shows an example of a wireless communication system 1300 where techniques in accordance with one or more embodiments of the present technology can be applied. A wireless communication system 1300 can include one or more base stations (BSs) 1305a, 1305b, one or more wireless devices (or UEs) 1310a, 1310b, 1310c, 1310d, and a core network 1325. A base station 1305a, 1305b can provide wireless service to terminal devices 1310a, 1310b, 1310c and 1310d in one or more wireless sectors. In some implementations, a base station 1305a, 1305b includes directional antennas to produce two or more directional beams to provide wireless coverage in different sectors. The core network 1325 can communicate with one or more base stations 1305a, 1305b. The core network 1325 provides connectivity with other wireless communication systems and wired communication systems. The core network may include one or more service subscription databases to store information related to the subscribed terminal devices 1310a, 1310b, 1310c, and 1310d. A first base station 1305a can provide wireless service based on a first radio access technology, whereas a second base station 1305b can provide wireless service based on a second radio access technology. The base stations 1305a and 1305b may be co-located or may be separately installed in the field according to the deployment scenario. The terminal devices 1310a, 1310b, 1310c, and 1310d can support multiple different radio access technologies. The techniques and embodiments described in the present document may be implemented by the base stations of wireless devices described in the present document.
[0373] FIG. 3 is a block diagram representation of a portion of a hardware platform in accordance with one or more embodiments of the present technology can be applied. The hardware platform 1405 may be incorporated into devices such as a network device, a base station, or a wireless device (or a terminal device, UE) can include processor electronics 1410 such as one or more microprocessors, processors, system on chip (SOC) or the like that implements one or more of the wireless communication techniques presented in this document. The hardware platform 1405 can include transceiver electronics 1415 to send and / or receive messages and signals over one or more communication interfaces such as antenna 1420. In some embodiments, the communication interface may be a wired interface, in which case the antenna 1420 may not be needed / used. The hardware platform 1405 can include other communication interfaces for transmitting and receiving data. The hardware platform 1405 can include one or more memories (not explicitly shown) configured to store information such as data and / or instructions. In some implementations, the processor electronics 1410 can include at least a portion of the transceiver electronics 1415. In some embodiments, at least some of the disclosed techniques, modules or functions are implemented using the hardware platform 1405. In some embodiments, the hardware platform 1405 may be configured to perform the methods described herein.
[0374] 9. Example solutions
[0375] Some preferred embodiments may implement the following solutions.
[0376] 1. A method of wireless communications (e.g., method 410 depicted in FIG. 4A) , comprising: receiving (412) , by a wireless device, a configuration information; and performing (414) , by the wireless device, a reference signal (RS) measurement or a transmission operation according to the configuration information. The transmission operation may correspond to, for example, the wireless device transmitting (in the uplink direction) a reference signal or another signal transmission for CSI acquisition.
[0377] 2. A method of wireless communications (e.g., method 420 depicted in FIG. 4B) , comprising: transmitting (422) , by a network device, a configuration information; and performing (424) , by the network device, a reference signal (RS) transmission or a reception operation according to the configuration information. The transmission operation may correspond to, for example, the network device receiving an uplink transmission of a reference signal or another signal transmission for CSI acquisition.
[0378] 3. The method of any of solutions 1-2, wherein the configuration information includes one or more of: a reference signal (RS) configuration, a channel state information (CSI) reporting configuration, a measurement mode, a CSI reporting mode, a CSI acquisition mode, or an indication to enable or disable one or more measurement modes or CSI reporting mode or CSI acquisition mode.
[0379] 4. The method of solution 3, wherein the measurement mode includes any one or more of:
[0380] the RS measurement is performed before a signaling or a physical channel or a signal is received; the RS measurement is performed after a signaling or a channel or a signal is received or applied or has taken effect; the RS measurement starts before a reception of a signaling or a channel or a signal; or, the RS measurement is performed before a signaling or a channel or a signal is received and continues to be performed after the signaling or the channel or the signal is received or applied or has taken effect.
[0381] 5. The method of any one of solutions 3 to 4, wherein the CSI reporting mode includes one or more of: a CSI reporting is performed before a signaling or a channel or a signal is received; the CSI reporting is performed after the signaling or the channel or the signal is received; or the CSI reporting is performed after the signaling or the channel or the signal is applied or taken effect.
[0382] 6. The method of any one of solutions 3 to 5, wherein CSI acquisition mode includes one or more of the following: the RS measurement and the CSI reporting are performed before reception of a signaling or channel or signal; the RS measurement is performed before reception of the signaling or the channel or the signal and the CSI reporting is performed after reception of the signaling or the channel or the signal; the RS measurement is performed before reception of the signaling or the channel or the signal and the CSI reporting is performed after the signaling or the channel or the signal is applied or has taken effect; the RS measurement and the CSI reporting are performed after reception of the signaling or the channel or the signal; or the RS measurement and the CSI reporting are performed after the signaling or the channel or the signal is applied or has taken effect.
[0383] Some solutions may achieve various RS configurations as listed below. Additional details are disclosed in Embodiment Examples 1.
[0384] 7. The method of any of solutions 1 to 6, wherein the reference signal transmission or the reference signal measurement is based on the reference signal (RS) configuration.
[0385] 8. The method of solution 1 to 7, wherein the RS configuration comprises any one or more of: one or more RS resource sets; one or more RS resources; one or more RS resource sets configured for or associated with one or more cells or cell groups; one or more RS resources configured for or associated with one or more cells or cell groups; one or more RS resource sets associated with one or more CSI reporting configurations; one or more RS resources associated with one or more CSI reporting configurations; one or more RS resource sets associated with one or more CSI reporting configurations for one or more cells or cell groups; one or more RS resources associated with one or more CSI reporting configurations for one or more cells or cell groups; one or more RS resources associated with or quasi-co-located (QCLed) with or same as one or more RSs; one or more RS resources associated with or QCLed with or same as one or more RSs provided in one or more TCI states; one or more RS resources associated with or QCLed with or same as one or more RSs provided in one or more TCI states for one or more cells or cell groups; one or more RS resources associated with or QCLed with or same as one or more RSs for determining RACH occasion; one or more RS resources associated with or QCLed with or same as one or more RSs for determining RACH occasion for one or more cells or cell groups; or, one or more specific RS resources or sets.
[0386] 9. The method of any one of solutions 1 to 8, wherein the RS configuration, or, one or more of configuration information, or one or more RS resources or sets can be obtained or configured or indicated or activated or deactivated or updated or enabled or disabled or triggered by any one or more of the following: RRC, MAC CE, DCI, pre-definition, default or a signaling or channel or signal or information, UE capability, TCI state, or PDCCH order.
[0387] 10. The method of any one of solutions 1 to 9, wherein the RS configuration or one or more RS resources or sets can be obtained by any one or more of the following: a radio resource configuration (RRC) configuration before a signaling or channel or signal or information is received; an received signaling or channel or signal or information; a RRC configuration corresponding to target configuration index provided in a signaling or channel or signal or information; a field to enable or disable or activate or deactivate or indicate one or more RS configurations; a field to enable or disable or activate or deactivate or indicate one or more CSI reporting configurations associated with one or more RS configurations; CSI request field; one or more trigger states; and / or a default RS configuration.
[0388] 11. The method of any one of solutions 1 to 10, wherein RS configuration, or one or more RS resources or sets are associated with one or more CSI reporting configuration for one or more candidate cells or serving cells.
[0389] 12. The method of any one of solutions 1 to 11, wherein RS configuration, or one or more RS resources or sets can be activated or deactivated or enabled or take effect or used for any one or more of the following: a signaling or channel or signal or information is received; a signaling or channel or signal or information is applied or taken effect; a RRC signaling or RRC configuration is received; a RRC configuration is completed; after an offset relative to reception of a signaling or channel or signal or information; after an offset relative to application of a signaling or channel or signal or information; after an offset relative to reception of a RRC signaling or RRC configuration; after an offset relative to completion of a RRC signaling or RRC configuration; a MAC CE for activating or deactivating TCI state for candidate cell is received; a MAC CE for activating or deactivating TCI state for candidate cell is applied or taken effect; a PDCCH order is received; a MAC CE or an LTM cell switch command MAC CE is received; a MAC CE or an LTM cell switch command MAC CE is applied or taken effect; RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE is completed or applied or received; after an offset relative to a reference point; and / or, an offset relative to completion or application or reception of RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE.
[0390] 13. The method of any one of solutions 1 to 12, wherein RS measurement is triggered or started or activated or deactivated or enabled or performed by or starting from any one or more of the following: a radio resource control (RRC) signaling; a medium access control (MAC) control element (CE) ; a downlink control information (DCI) ; a signaling or channel or signal or information; a reception of a signaling or channel or signal or information; a reception of a RRC signaling; RRC configuration is completed; an LTM cell switch command MAC CE is received; a MAC CE or an LTM cell switch command MAC CE is applied or taken effect; an offset after a reception of a signaling or channel or signal or information; an offset relative to reception or completion of a RRC signaling or RRC configuration; an offset relative to HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE; an offset relative to reception or application of a MAC CE or an LTM cell switch command MAC CE; RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE is completed or applied or received; an offset relative to completion or application or reception of RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE; a reception of a PDCCH order or a reception of a signaling to initial random access procedure; after an offset relative to a reference point; and / or, one or more activated and / or indicated TCI state for candidate or target cell.
[0391] 14. The method of any of solutions 1, 12 and 13, wherein after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following can be considered: one or more RS resources or RS resource sets that have been activated are retained or remains activated; one or more RS resources or RS resource sets that have been activated for target cell and / or candidate cell are retained or remains activated; a wireless device retains one or more RS resources or RS resource sets that have been activated; a wireless device retains one or more RS resources or RS resource sets that have been activated for target cell and / or candidate cell; and / or RS resources or RS resource set with same identification of RS resources or RS resource set for candidate cell is retained or remains activated.
[0392] 15. The method of any one of solutions 1 to 14, wherein the reference signal measurement for CSI acquisition should satisfy any one or more of the following conditions: RS resource to measure is before or on CSI reference resource; measurement result from a latest or most recent RS resource; a gap between CSI reference resource and a CSI reporting corresponding to RS measurement needs to meet a threshold; a gap between a signaling triggering RS transmission or measurement and RS transmission or measurement needs to meet a threshold; RS resource is a latest or most recent RS resource that is before or on CSI reference resource and after a signaling or channel or signal or information or a MAC CE or an LTM cell switch command MAC CE is received or applied; RS resource is a RS resource that is before or on CSI reference resource and after a signaling or channel or signal or a MAC CE or an LTM cell switch command MAC CE is received or applied; RS resource is a latest or most recent RS resource relative to CSI reference resource; and / or, RS resource is an active RS resource.
[0393] 16. The method of any one of solutions 1 or 15, wherein in any time interval, a wireless device is not expected to have more active RS ports or active RS resources than reported as capability.
[0394] 17. The method of any one of solutions 1 to 16, wherein for the case that RS measurement is performed or started before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following can be considered:
[0395] RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are counted; and / or
[0396] RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration and / or RS resources or sets associated with CSI reporting configuration are counted.
[0397] 18. The method of any one of solutions 1 to 16, wherein for the case that RS measurement is performed or started after a signaling or channel or signal, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following is implemented:
[0398] before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration are counted;
[0399] before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are not counted;
[0400] after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are not counted;
[0401] after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with one or more candidate cells except for target cell are not counted;
[0402] after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with target cell and / or serving cell are not counted; or
[0403] after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration are counted.
[0404] 19. The method of any one of solutions 1 to 17, wherein a signaling or channel or signal or information can be any one or more of the following: RRC, MAC CE, DCI, LTM cell switch command MAC CE PSS, SSS, PBCH, SSB, RS, DMRS, PRACH, SRS, MSG 2 (RAR) , RAR UL grant, MSG B, MSG 4, system information, broadcast information, master information Block (MIB) , system information block (SIB) , the remaining system information (RMSI) , other system information (OSI) .
[0405] 20. An apparatus for wireless communication, comprising at least one processor configured to cause the apparatus to implement a method recited in any of solutions 1-19.
[0406] 21. A computer-readable medium having code stored thereon, the code, upon execution, causing at least one processor to cause an apparatus to implement a method recited in any of solutions 1-19. It will be appreciated by those skilled in the art that the present document discloses several techniques to allow early acquisition of channel state in a wireless network. For example, various disclosed approaches for RS measurements include performing a RS measurement before a reception of a signaling or a channel / signal or performing RS measurement after a reception of a signaling or channel signaling. In some embodiments, which of these two approaches to use will be enabled based on configuration or UE capability. Additional features are disclosed in Embodiment Examples 2.
[0407] It will be further appreciated by those of skill in the art that the present document discloses examples of time domain behavior of RS transmission. One set of examples may include periodic transmissions (e.g., Embodiment examples 3) . Another set of examples includes SP transmissions (e.g., embodiment examples 4) . It will further be appreciated that Embodiment examples 5 discloses restriction to RS measurements, and examples of how to activate RS resource and related UE capability to be used in conjunction with other embodiments.
[0408] The disclosed and other embodiments, modules and the functional operations described in this document can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this document and their structural equivalents, or in combinations of one or more of them. The disclosed and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a computer readable medium for execution by, or to control the operation of, data processing apparatus. The computer readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter effecting a machine-readable propagated signal, or a combination of one or more of them. The term “data processing apparatus” encompasses all apparatus, devices, and machines for processing data, including by way of example a programmable processor, a computer, or multiple processors or computers. The apparatus can include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them. A propagated signal is an artificially generated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, which is generated to encode information for transmission to suitable receiver apparatus.
[0409] A computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document) , in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code) . A computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
[0410] The processes and logic flows described in this document can be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) . Processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read only memory or a random-access memory or both. The essential elements of a computer are a processor for performing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks. However, a computer need not have such devices. Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto optical disks; and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
[0411] It is noted that operation of the wireless communications as disclosed herein causes a reduction in greenhouse gas emissions compared to traditional methods. The International Energy Agency (IEA) estimates that the overall share of carbon emissions from information and communication technologies (ICT) accounts for approximately 4%of the total amount of CO2 emitted around world. Further, conventional networks can sometimes exacerbate the causes of climate change. For example, at an average of approximately 485g of CO2 per KWh of electricity that is produced worldwide, it results in a rough estimate of 145.5 million metric tons of CO2. The implementations disclosed herein for operating the wireless communications can reduce power consumption by improving efficiency of channel state reporting and reducing signaling overhead and latency.
[0412] Moreover, Global System for Mobile Communications Association (GSMA) , the organization that represents mobile operators and the telecommunication industry worldwide, has estimated that currently 20–40%of the operating cost of network operators is taken up by electricity, and that 5G can cause a substantial (as much as four to five fold) increase of energy consumption in the RAN, but that the technical means to reduce this consumption can be included in later generation mobile networks, such as 6G networks. Avoiding unnecessary resources for handovers that may not be successful or optimal, by using the pre-verification techniques described herein, may cause less wireless message transmissions. Therefore, the disclosed implementations for operation of the wireless communications mitigates climate change and the effects of climate change.
[0413] While this patent document contains many specifics, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features that may be specific to particular embodiments of particular inventions. Certain features that are described in this patent document in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
[0414] Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Moreover, the separation of various system components in the embodiments described in this patent document should not be understood as requiring such separation in all embodiments.
[0415] Only a few implementations and embodiments are described, and other implementations, enhancements and variations can be made based on what is described and illustrated in this patent document.
Claims
1.A method of wireless communications, comprising:receiving, by a wireless device, a configuration information; andperforming, by the wireless device, a reference signal (RS) measurement or a transmission operation according to the configuration information.2.A method of wireless communications, comprising:transmitting, by a network device, a configuration information; andperforming, by the network device, a reference signal (RS) transmission or a reception operation according to the configuration information.3.The method of any of claims 1-2, wherein the configuration information includes one or more of: a reference signal (RS) configuration, a channel state information (CSI) reporting configuration, a measurement mode, a CSI reporting mode, a CSI acquisition mode, or an indication to enable or disable one or more measurement modes or CSI reporting mode or CSI acquisition mode.4.The method of claim 3, wherein the measurement mode includes any one or more of:the RS measurement is performed before a signaling or a physical channel or a signal is received;the RS measurement is performed after a signaling or a channel or a signal is received or applied or has taken effect;the RS measurement starts before a reception of a signaling or a channel or a signal; or,the RS measurement is performed before a signaling or a channel or a signal is received and continues to be performed after the signaling or the channel or the signal is received or applied or has taken effect.5.The method of claim 4, wherein the CSI reporting mode includes one or more of:a CSI reporting is performed before a signaling or a channel or a signal is received;the CSI reporting is performed after the signaling or the channel or the signal is received; orthe CSI reporting is performed after the signaling or the channel or the signal is applied or taken effect.6.The method of claim 5, wherein CSI acquisition mode includes one or more of the following:the RS measurement and the CSI reporting are performed before reception of a signaling or channel or signal;the RS measurement is performed before reception of the signaling or the channel or the signal and the CSI reporting is performed after reception of the signaling or the channel or the signal;the RS measurement is performed before reception of the signaling or the channel or the signal and the CSI reporting is performed after the signaling or the channel or the signal is applied or has taken effect;the RS measurement and the CSI reporting are performed after reception of the signaling or the channel or the signal; orthe RS measurement and the CSI reporting are performed after the signaling or the channel or the signal is applied or has taken effect.7.The method of claim 6, wherein the reference signal transmission or the reference signal measurement is based on the reference signal (RS) configuration.8.The method of claim 1, wherein the RS configuration comprises any one or more of:one or more RS resource sets;one or more RS resources;one or more RS resource sets configured for or associated with one or more cells or cell groups;one or more RS resources configured for or associated with one or more cells or cell groups;one or more RS resource sets associated with one or more CSI reporting configurations;one or more RS resources associated with one or more CSI reporting configurations;one or more RS resource sets associated with one or more CSI reporting configurations for one or more cells or cell groups;one or more RS resources associated with one or more CSI reporting configurations for one or more cells or cell groups;one or more RS resources associated with or quasi-co-located (QCLed) with or same as one or more RSs;one or more RS resources associated with or QCLed with or same as one or more RSs provided in one or more TCI states;one or more RS resources associated with or QCLed with or same as one or more RSs provided in one or more TCI states for one or more cells or cell groups;one or more RS resources associated with or QCLed with or same as one or more RSs for determining RACH occasion;one or more RS resources associated with or QCLed with or same as one or more RSs for determining RACH occasion for one or more cells or cell groups; or,one or more specific RS resources or sets.9.The method of claim 8, wherein the RS configuration, or, one or more of configuration information, or one or more RS resources or sets can be obtained or configured or indicated or activated or deactivated or updated or enabled or disabled or triggered by any one or more of the following: RRC, MAC CE, DCI, pre-definition, default or a signaling or channel or signal or information, UE capability, TCI state, or PDCCH order.10.The method of claim 9, wherein the RS configuration or one or more RS resources or sets can be obtained by any one or more of the following:a radio resource configuration (RRC) configuration before a signaling or channel or signal or information is received;an received signaling or channel or signal or information;a RRC configuration corresponding to target configuration index provided in a signaling or channel or signal or information;a field to enable or disable or activate or deactivate or indicate one or more RS configurations;a field to enable or disable or activate or deactivate or indicate one or more CSI reporting configurations associated with one or more RS configurations;CSI request field;one or more trigger states; and / ora default RS configuration.11.The method of claim 1, wherein RS configuration, or one or more RS resources or sets are associated with one or more CSI reporting configuration for one or more candidate cells or serving cells.12.The method of claim 11, wherein RS configuration, or one or more RS resources or sets can be activated or deactivated or enabled or take effect or used for any one or more of the following:a signaling or channel or signal or information is received;a signaling or channel or signal or information is applied or taken effect;a RRC signaling or RRC configuration is received;a RRC configuration is completed;after an offset relative to reception of a signaling or channel or signal or information;after an offset relative to application of a signaling or channel or signal or information;after an offset relative to reception of a RRC signaling or RRC configuration;after an offset relative to completion of a RRC signaling or RRC configuration;a MAC CE for activating or deactivating TCI state for candidate cell is received;a MAC CE for activating or deactivating TCI state for candidate cell is applied or taken effect;a PDCCH order is received;a MAC CE or an LTM cell switch command MAC CE is received;a MAC CE or an LTM cell switch command MAC CE is applied or taken effect;RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE is completed or applied or received;after an offset relative to a reference point; and / or,an offset relative to completion or application or reception of RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE.13.The method of claim 12, wherein RS measurement is triggered or started or activated or deactivated or enabled or performed by or starting from any one or more of the following:a radio resource control (RRC) signaling;a medium access control (MAC) control element (CE) ;a downlink control information (DCI) ;a signaling or channel or signal or information;a reception of a signaling or channel or signal or information;a reception of a RRC signaling;RRC configuration is completed;an LTM cell switch command MAC CE is received;a MAC CE or an LTM cell switch command MAC CE is applied or taken effect;an offset after a reception of a signaling or channel or signal or information;an offset relative to reception or completion of a RRC signaling or RRC configuration;an offset relative to HARQ-ACK transmission corresponding to a MAC CE or an LTM cell switch command MAC CE;an offset relative to reception or application of a MAC CE or an LTM cell switch command MAC CE;RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE is completed or applied or received;an offset relative to completion or application or reception of RRC configuration corresponding to target cell or serving cell provided by a MAC CE or an LTM cell switch command MAC CE;a reception of a PDCCH order or a reception of a signaling to initial random access procedure;after an offset relative to a reference point; and / or,one or more activated and / or indicated TCI state for candidate or target cell.14.The method of any of claims 1, 12 and 13, wherein after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following can be considered:one or more RS resources or RS resource sets that have been activated are retained or remains activated;one or more RS resources or RS resource sets that have been activated for target cell and / or candidate cell are retained or remains activated;a wireless device retains one or more RS resources or RS resource sets that have been activated;a wireless device retains one or more RS resources or RS resource sets that have been activated for target cell and / or candidate cell; and / orRS resources or RS resource set with same identification of RS resources or RS resource set for candidate cell is retained or remains activated.15.The method of claim 14, wherein the reference signal measurement for CSI acquisition should satisfy any one or more of the following conditions:RS resource to measure is before or on CSI reference resource;measurement result from a latest or most recent RS resource;a gap between CSI reference resource and a CSI reporting corresponding to RS measurement needs to meet a threshold;a gap between a signaling triggering RS transmission or measurement and RS transmission or measurement needs to meet a threshold;RS resource is a latest or most recent RS resource that is before or on CSI reference resource and after a signaling or channel or signal or information or a MAC CE or an LTM cell switch command MAC CE is received or applied;RS resource is a RS resource that is before or on CSI reference resource and after a signaling or channel or signal or a MAC CE or an LTM cell switch command MAC CE is received or applied;RS resource is a latest or most recent RS resource relative to CSI reference resource; and / or,RS resource is an active RS resource.16.The method of claim 15, wherein in any time interval, a wireless device is not expected to have more active RS ports or active RS resources than reported as capability.17.The method of claim 16, wherein for the case that RS measurement is performed or started before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following can be considered:RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are counted; and / orRS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration and / or RS resources or sets associated with CSI reporting configuration are counted.18.The method of claim 17, wherein for the case that RS measurement is performed or started after a signaling or channel or signal, or a MAC CE or LTM cell switch command MAC CE is received or applied, any one or more of the following is implemented:before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration are counted;before a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are not counted;after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with LTM CSI reporting configuration are not counted;after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with one or more candidate cells except for target cell are not counted;after a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with target cell and / or serving cell are not counted; orafter a signaling or channel or signal or information, or a MAC CE or LTM cell switch command MAC CE is received or applied, RS resource (s) or activate RS resource (s) from RS resources or sets associated with CSI reporting configuration are counted.19.The method of claim 18, wherein a signaling or channel or signal or information can be any one or more of the following: RRC, MAC CE, DCI, LTM cell switch command MAC CE PSS, SSS, PBCH, SSB, RS, DMRS, PRACH, SRS, MSG 2 (RAR) , RAR UL grant, MSG B, MSG 4, system information, broadcast information, master information Block (MIB) , system information block (SIB) , remaining system information (RMSI) , other system information (OSI) .20.An apparatus for wireless communication, comprising at least one processor configured to cause the apparatus to implement a method recited in any of claims 1-19.21.A computer-readable medium having code stored thereon, the code, upon execution, causing at least one processor to cause an apparatus to implement a method recited in any of claims 1-19.