Measurement configuration and verification
By receiving the RRC release message to verify TAC and CG resources, the problem of low communication resource utilization efficiency when the UE is inactive is solved, effective communication resource utilization when the RRC is inactive is achieved, and the efficiency of small data transmission is improved.
Patent Information
- Application Number
- CN202480014057.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-27
- Filing Date
- 2024-02-28
- Publication Date
- 2025-10-14
AI Technical Summary
When the user equipment (UE) is in an inactive state, existing technologies have difficulty in effectively performing timing advance (TA) verification and configuration grant (CG) resource verification in the small data transmission (SDT) process, resulting in inefficient communication resource utilization.
By receiving the radio resource control (RRC) release message, the UE is instructed to perform timing advance command (TAC) verification and CG resource verification, use measurement resources to obtain reference signal measurement information, and verify and use TAC and communication resources in the RRC inactive state to ensure the effectiveness of uplink communication.
This achieves effective verification and use of TAC and communication resources when the UE is inactive, improving the efficiency of communication resource utilization during small data transmission.
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Figure CN120787418A_ABST
Abstract
Description
[0001] Cross Reference to Related Applications
[0002] This Patent Application claims priority to U.S. Patent Application No. 18 / 589,274, titled “MEASUREMENT CONFIGURATION AND VALIDATION” and filed on February 27, 2024, by LEI et al., which claims the benefit of U.S. Provisional Patent Application No. 63 / 487,546, titled “MEASUREMENT CONFIGURATION AND VALIDATION” and filed on February 28, 2023, by LEI et al.; each of the above applications is assigned to the assignee hereof, and each of the above applications is hereby expressly incorporated by reference herein in its entirety. TECHNICAL FIELD
[0003] The following relates to wireless communications related to measurement configuration and validation for configured grant (CG) small data transmission (SDT) procedures when a user equipment (UE) is in an inactive state. BACKGROUND
[0004] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems can be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple- access systems include fourth generation (4G) systems, which are commonly referred to as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems, which can be referred to as New Radio (NR) systems. These systems can employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communications system can include one or more base stations, each simultaneously supporting communication with multiple user equipment (UEs) or access terminals. SUMMARY
[0005] The techniques described herein can support measurement configuration and verification to support timing advance (TA) verification and configuration grant (CG) resource verification (and selection) for small data transmission (SDT) procedures. A user equipment (UE) can receive a radio resource control (RRC) release message that also indicates a communication resource for an uplink communication, such as a CG-SDT communication. In connection with the CG-SDT configuration, the RRC release message can also include a timing advance command (TAC), a measurement resource for a TAC verification procedure, TAC verification information, and measurement verification information. The measurement verification information can include timing-related criteria and non-timing-related criteria. Based on the measurement resource, the UE can obtain first reference signal measurement information and second reference signal measurement information corresponding to first and second reference signals, respectively. Based on the measurement verification information, the UE can verify the measurement information for use in the TAC verification procedure, which the UE can perform while in an RRC inactive state. In some cases, the UE can verify a TAC to apply to a transmission of the uplink communication and transmit the uplink communication resource based on the verified TAC and the communication resource while still in the RRC inactive state.
[0006] Additionally or alternatively, the UE can perform CG resource verification. The UE can receive an RRC release message. In the case of CG resource verification, the RRC release message can indicate a communication resource for an uplink communication (e.g., a CG-SDT configuration), a measurement resource for an uplink communication resource verification procedure, uplink communication resource verification information (for a corresponding verification procedure), and measurement verification information. The UE can obtain reference signal measurement information based on the measurement resource and then verify the reference signal measurement information based on the measurement verification information. As such, the UE can use the reference signal measurement information as valid input for the uplink communication resource verification procedure. The UE can perform the uplink communication resource verification procedure while in an RRC inactive state, which can include verifying the communication resource based on the uplink communication resource verification information. The UE can transmit the uplink communication using the verified communication resource while still in the RRC inactive state.
[0007] A method is described. The method can include receiving, at a first network entity and in association with a connected active state release, first information indicating: a communication resource for uplink communications in a connected inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information; wherein the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; obtaining measurement information based on the measurement resource, the measurement information comprising first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal; validating the measurement information as valid input information for the TAC validation procedure based on the measurement validation information; performing the TAC validation procedure while in the connected inactive state and based on the validation of the measurement information, wherein performing the TAC validation procedure comprises validating the TAC for application to transmitting the uplink communications using the communication resource based on the TAC validation information; and transmitting the uplink communications using the communication resource while in the connected inactive state and based on the validated TAC.
[0008] A first network entity is described. The first network entity can include a memory and at least one processor coupled with the memory. The at least one processor can be configured to receive, at the first network entity and in association with a connected active state release, first information indicating: a communication resource for uplink communications in a connected inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information; wherein the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; obtain measurement information based on the measurement resource, the measurement information comprising first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal; validate the measurement information as valid input information for the TAC validation procedure based on the measurement validation information; perform the TAC validation procedure while in the connected inactive state and based on the validation of the measurement information, wherein performing the TAC validation procedure comprises validating the TAC for application to transmitting the uplink communications using the communication resource based on the TAC validation information; and transmit the uplink communications using the communication resource while in the connected inactive state and based on the validated TAC.
[0009] Another apparatus is described. The apparatus can include means for receiving, at a first network entity and in association with a connected-inactive state release, first information indicating: a communication resource for uplink communications in a connected-inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information; where the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; means for obtaining measurement information based on the measurement resource, the measurement information comprising first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal; means for validating, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure; means for performing, while in the connected-inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure comprises validating the TAC based on the TAC validation information to apply to transmitting the uplink communications using the communication resource; and means for transmitting, while in the connected-inactive state and based on the validated TAC, the uplink communications using the communication resource.
[0010] A non-transitory computer-readable medium storing code is described. The code can include instructions executable by a processor to receive, at a first network entity and in association with a connected-inactive state release, first information indicating: a communication resource for uplink communications in a connected-inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information; where the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; obtain measurement information based on the measurement resource, the measurement information comprising first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal; validate, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure; perform, while in the connected-inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure comprises validating the TAC based on the TAC validation information to apply to transmitting the uplink communications using the communication resource; and transmit, while in the connected-inactive state and based on the validated TAC, the uplink communications using the communication resource.
[0011] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, obtaining the measurement information can include operations, features, means, or instructions for receiving and measuring a first instance of a reference signal within a first bandwidth part (BWP) used by the first network entity when in a connected state, and receiving and measuring a second instance of the reference signal within the first BWP used by the first network entity when in the connected state.
[0012] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, obtaining the measurement information can include operations, features, means, or instructions for receiving and measuring a first instance of a reference signal within a first BWP used by the first network entity when in a connected state, and receiving and measuring a second instance of the reference signal within a second BWP used by the first network entity when in the connected inactive state.
[0013] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, obtaining the measurement information can include operations, features, means, or instructions for receiving and measuring a first instance of a reference signal within a second BWP used by the first network entity when in the connected inactive state, wherein a first BWP is used by the first network entity when in a connected state, and receiving and measuring a second instance of the reference signal within the second BWP used by the first network entity when in the connected inactive state.
[0014] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, performing the TAC verification procedure can include operations, features, means, or instructions for comparing a difference between the first reference signal measurement information and the second reference signal measurement information to a threshold difference.
[0015] Some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for applying an offset or a scaling factor to at least one of the first reference signal measurement information, the second reference signal measurement information, or the threshold difference based on the first reference signal measurement information and the second reference signal measurement information being associated with different configurations of a reference signal, different carrier frequencies, different configurations of receive antennas, or different transmit powers of the reference signal.
[0016] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, applying the offset or the scaling factor can include operations, features, means, or instructions for receiving the offset or the scaling factor to apply to at least one of the first reference signal measurement information, the second reference signal measurement signal, or the threshold difference.
[0017] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the non-time related criteria indicates that the first reference signal measurement information and the second reference signal measurement information can be obtained within a same frequency range.
[0018] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing related criteria indicates a first time at which the first reference signal measurement information can be obtained, a second time at which the second reference signal measurement signal can be obtained, a TAC validation time, and a transmission time for transmission of the uplink communication; and the timing related criteria indicates that the first time can precede the second time, the second time can precede or be at a same time as the TAC validation time, and the TAC validation time can precede the transmission time.
[0019] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing related criteria indicates that a difference between the TAC validation time and the second time can be less than or equal to an incremental time threshold; and the incremental time threshold can have a value greater than zero and can be based on one or more of a frequency range of the uplink communication, a discontinuous reception (DRX) cycle length associated with the first network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of the second reference signal, and a configuration of a receive antenna used to obtain the second reference signal measurement information at the second time.
[0020] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing related criteria indicates that a difference between the transmission time and the TAC validation time can be less than or equal to an incremental time threshold, and the incremental time threshold can have a value greater than zero.
[0021] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing-related criteria indicates that a difference between a message arrival time and the first time can be less than or equal to an incremental time threshold, the message arrival time can be a most recent time at which the first network entity receives a TAC of a primary timing advance group (TAG) or receives the first information, and the incremental time threshold can have a value greater than zero and can be based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the first network entity, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of the first reference signal, and a configuration of a receive antenna used to obtain the first reference signal measurement information at the first time.
[0022] Some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for receiving an indication of: a first threshold value associated with a difference between the TAC validation time and the second time, a second threshold value associated with a difference between the transmission time and the TAC validation time, and a third threshold value associated with a difference between a message arrival time and the first time, where the message arrival time can be a most recent time at which the first network entity receives a TAC of a primary TAG or receives the first information.
[0023] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the uplink communication includes an initial CG-SDT or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0024] A method is described. The method can include receiving, at a first network entity and in association with a connection active state release, first information indicating: a communication resource for an uplink communication in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; obtaining, based on the measurement resource, reference signal measurement information; validating, based on the measurement validation information, the reference signal measurement information as valid input information for the uplink communication resource validation procedure; performing, while in the connection inactive state and based on the validating of the reference signal measurement information, the uplink communication resource validation procedure, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information; and transmitting, while in the connection inactive state and based on the validated communication resource, the uplink communication using the communication resource.
[0025] A first network entity is described. The apparatus can include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to receive, at a first network entity and in association with a connected-inactive state release, first information indicating: a communication resource for uplink communications in a connected-inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; obtain, based on the measurement resource, reference signal measurement information; validate, based on the measurement validation information, the reference signal measurement information as valid input information for the uplink communication resource validation procedure; perform, while in the connected-inactive state and based on the validation of the reference signal measurement information, the uplink communication resource validation procedure, wherein performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information; and transmit, while in the connected-inactive state and based on the validated communication resource, the uplink communications using the communication resource.
[0026] Another apparatus is described. The apparatus can include means for receiving, at a first network entity and in association with a connected-inactive state release, first information indicating: a communication resource for uplink communications in a connected-inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; means for obtaining, based on the measurement resource, reference signal measurement information; means for validating, based on the measurement validation information, the reference signal measurement information as valid input information for the uplink communication resource validation procedure; means for performing, while in the connected-inactive state and based on the validation of the reference signal measurement information, the uplink communication resource validation procedure, wherein performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information; and means for transmitting, while in the connected-inactive state and based on the validated communication resource, the uplink communications using the communication resource.
[0027] A non-transitory computer-readable medium storing code is described. The code can include instructions executable by a processor to receive, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; obtain reference signal measurement information based on the measurement resource; validate the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information; perform the uplink communication resource validation procedure while in the connection inactive state and based on the validation of the reference signal measurement information, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information; and transmit the uplink communications using the communication resource while in the connection inactive state and based on the validated communication resource.
[0028] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, obtaining the reference signal measurement information can include operations, features, means, or instructions for receiving and measuring a reference signal within a first BWP or a second BWP, the first BWP used by the first network entity while in a connected state, the second BWP used by the first network entity while in the connection inactive state.
[0029] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, the communication resource that can be validated can be within a same frequency range as the measurement resource that can be a basis for the reference signal measurement information.
[0030] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, validating the reference signal measurement information can include operations, features, means, or instructions for comparing a timing and a value of the reference signal measurement information to a set of threshold measurement values.
[0031] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, transmitting the uplink communications can include operations, features, means, or instructions for transmitting a set of multiple uplink communications over a corresponding set of multiple validated uplink transmission occasions, where the uplink communication resource validation procedure can be performed prior to each transmission.
[0032] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for receiving second information indicating a set of multiple reference resources for validating the reference signal measurement information, each reference resource of the set of multiple reference resources being associated with a different uplink transmission occasion of the set of multiple validated uplink transmission occasions, and applying an offset or a scaling factor to at least one of the reference signal measurement information or the set of threshold measurements based on the set of multiple reference resources for validating the reference signal measurement information being associated with a different reference signal, a different carrier frequency, a different configuration of receive antennas, or a different transmit power.
[0033] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, applying the offset or the scaling factor can include operations, features, means, or instructions for receiving the offset or the scaling factor to apply to at least one of the reference signal measurement information or the set of threshold measurements.
[0034] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement validation information indicates that a set of multiple reference resources for the reference signal measurement information corresponds to a resource mapping between the measurement resources that can be a basis for the reference signal measurement information and the communication resources indicated in the first information.
[0035] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement validation information indicates that the reference signal measurement information can be obtained and the uplink communication can be transmitted within a same frequency range.
[0036] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement validation information indicates a first time at which first reference signal measurement information can be obtained, a communication resource validation time, a transmission time for transmission of the uplink communication, and an increment time, and the measurement validation information indicates that the first time can be before or at a same time as the communication resource validation time, the communication resource validation time can be before the transmission time.
[0037] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement validation information indicates that a difference between the communication resource validation time and the first time can be less than or equal to the increment time.
[0038] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the delta time can have a value greater than zero and can be based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the first network entity, a measurement window configuration for a reference signal associated with a communication resource validation, a type of reference signal that can be a basis for the reference signal measurement information, a configuration of receive antennas used to obtain the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas used for downlink channel reception.
[0039] Some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for validating, when in the connection inactive state, a TAC for application to transmission of the uplink communication using the communication resource indicated in the first information, where the TAC validation can be based on the validity of the reference signal measurement information as the valid input information.
[0040] A method is described. The method can include transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating a communication resource for uplink communication by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria; and receiving, when the second network entity is in the connection inactive state, the uplink communication using the communication resource, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0041] A first network entity is described. The first network entity can include a memory and at least one processor coupled with the memory. The at least one processor can be configured to transmit, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC verification procedure, TAC verification information, and measurement verification information, where the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; and receive, using the communication resource, the uplink communications while the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0042] Another apparatus is described. The apparatus can include means for transmitting, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC verification procedure, TAC verification information, and measurement verification information, where the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; and means for receiving, using the communication resource, the uplink communications while the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0043] A non-transitory computer-readable medium storing code is described. The code can include instructions executable by a processor to transmit, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC verification procedure, TAC verification information, and measurement verification information, where the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; and receive, using the communication resource, the uplink communications while the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0044] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting a first instance of a reference signal within a first BWP, the first BWP used by the second network entity when in a connected state, and transmitting a second instance of the reference signal within the first BWP, the first BWP used by the second network entity when in the connected state.
[0045] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting a first instance of a reference signal within a first BWP, the first BWP used by the second network entity when in a connected state, and transmitting a second instance of the reference signal within a second BWP, the second BWP used by the second network entity when in the connected inactive state.
[0046] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting a first instance of a reference signal within a second BWP, the second BWP used by the second network entity when in the connected inactive state, wherein a first BWP is used by the first network entity when in a connected state, and transmitting a second instance of the reference signal within the second BWP, the second BWP used by the second network entity when in the connected inactive state.
[0047] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting an offset or scaling factor for the second network entity to apply to at least one of: first reference signal measurement information, second reference signal measurement information, or a threshold difference between the first reference signal measurement information and the second reference signal measurement information.
[0048] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the non-timing related criteria indicates that the first reference signal measurement information and the second reference signal measurement information can be within a same frequency range.
[0049] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing-related criteria indicates a first time at which the second network entity can obtain first reference signal measurement information, a second time at which the second network entity can obtain the second reference signal measurement information, a TAC validation time, and a transmission time for transmission of the uplink communication, and the timing-related criteria indicates that the first time can be before the second time, the second time can be before or at a same time as the TAC validation time, and the TAC validation time can be before the transmission time.
[0050] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing-related criteria indicates that a difference between the TAC validation time and the second time can be less than or equal to an incremental time threshold; and the incremental time threshold can have a value greater than zero and can be based on one or more of a frequency range of the uplink communication, a DRX cycle length associated with the second network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second measurement time.
[0051] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing-related criteria indicates that a difference between the TAC validation time and the second time can be less than or equal to an incremental time threshold; and the incremental time threshold can have a value greater than zero and can be based on one or more of a frequency range of the uplink communication, a DRX cycle length associated with the second network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second measurement time.
[0052] In some aspects of the method, the first network entity, and the non-transitory computer- readable medium described herein, the timing-related criteria indicates that a difference between the TAC validation time and the second time can be less than or equal to an incremental time threshold; and the incremental time threshold can have a value greater than zero and can be based on one or more of a frequency range of the uplink communication, a DRX cycle length associated with the second network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second measurement time.
[0053] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting an indication of a first threshold value associated with a difference between the TAC verification time and the second time, a second threshold value associated with a difference between the transmission time and the TAC verification time, and a third threshold value associated with a difference between a message arrival time and the first time, where the message arrival time can be a most recent time at which the first network entity transmitted a TAC of a master TAG or transmitted the first information.
[0054] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, wherein the uplink communication comprises an initial CG-SDT or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0055] A method is described. The method can include transmitting, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for an uplink communication by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource verification procedure, uplink communication resource verification information, and measurement verification information; and receiving, using the communication resource, the uplink communication when the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0056] An apparatus is described. The apparatus can include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to transmit, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for an uplink communication by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource verification procedure, uplink communication resource verification information, and measurement verification information; and receive, using the communication resource, the uplink communication when the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0057] Another apparatus is described. The apparatus can include means for transmitting, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; and means for receiving, using the communication resource, the uplink communications when the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0058] A non-transitory computer-readable medium storing code is described. The code can include instructions executable by a processor to transmit, by a first network entity and in association with a connection active state release for a second network entity, first information indicating a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; and receive, using the communication resource, the uplink communications when the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0059] Some aspects of the methods, first network entities, and non-transitory computer- readable media described herein can further include operations, features, means, or instructions for transmitting a reference signal within a first BWP or a second BWP, the first BWP used by the second network entity when in a connected state, the second BWP used by the second network entity when in the connection inactive state.
[0060] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, the communication resource that can be validated can be within a same frequency range as the measurement resource.
[0061] In some aspects of the methods, first network entities, and non-transitory computer- readable media described herein, receiving the uplink communications can include operations, features, means, or instructions for receiving a set of multiple uplink communications over a corresponding set of multiple validated uplink transmission occasions.
[0062] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting second information indicating a set of multiple reference resources for verifying the measurement information, each reference resource of the set of multiple reference resources being associated with a different uplink transmission occasion of the set of multiple verified uplink transmission occasions, and
[0063] Some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting an offset or a scaling factor to apply to at least one of the measurement information or the set of threshold measurements.
[0064] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement verification information indicates that a set of multiple reference resources for the measurement information corresponds to a resource mapping between the measurement resource and the communication resource indicated in the first information.
[0065] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement verification information indicates a first time at which first reference signal measurement information can be obtained, a communication resource verification time, a transmission time for transmitting the uplink communication, and an increment time, and the measurement verification information indicates that the first time can be before or at a same time as the communication resource verification time, the communication resource verification time can be before the transmission time.
[0066] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the measurement verification information indicates that a difference between the communication resource verification time and the first time can be less than or equal to the increment time.
[0067] In some aspects of the methods, first network entity, and non-transitory computer- readable medium described herein, the increment time can have a value greater than zero and can be based on one or more of a frequency range of the uplink communication, a DRX cycle length associated with a second network entity, a measurement window configuration for the reference signal associated with a communication resource verification, a type of reference signal that can be a basis for the reference signal measurement information, a configuration of receive antennas for obtaining the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas for downlink channel reception. BRIEF DESCRIPTION OF DRAWINGS
[0068] Figure 1An example of a timeline that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0069] Figure 2 An example of a timeline that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0070] Figure 3 An example of a timeline that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0071] Figure 4 An example of a timeline that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0072] Figure 5 An example of a process flow that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0073] Figure 6 An example of a process flow that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0074] Figure 7 And Figure 8 A block diagram of a device that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0075] Figure 9 A block diagram of a communications manager that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0076] Figure 10 A diagram of a system including a device that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0077] Figure 11 And Figure 12 A block diagram of a device that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0078] Figure 13 A block diagram of a communications manager that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0079] Figure 14 A diagram of a system including a device that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown.
[0080] Figures 15 to 18 A flow diagram illustrating a method that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION
[0081] Configured grant (CG)-small data transmission (SDT) procedures can improve power savings and reduce overhead for user equipment (UEs). SDT allows data or other signaling to be transmitted by a UE while the UE is in a radio resource control (RRC) inactive state. To enable SDT, the UE is configured with SDT resources. To allow the UE to remain in the RRC inactive state for SDT, the UE is granted SDT resources in advance, and then, if the UE needs to transmit uplink data or signaling, the UE can use the already configured resources as needed. However, aspects associated with SDT configuration can become stale over time, as described herein. Thus, these aspects, such as timing information and resource information, can be validated before the UE actually uses the CG-SDT resources. CG-SDT can be used to provide reports or other data that the UE is able to generate without being in an RRC connected state. However, the use of CG-SDT is not limited to reports; CG-SDT can be used for any data transmission for which the UE benefits from remaining in an RRC inactive state. Standalone transmissions or transmissions while the UE preserves battery life are some examples that can be considered for CG-SDT transmissions.
[0082] To perform CG-SDT, a network entity can transmit an RRC release message to suspend an RRC connection between the UE and the network entity. Further, the RRC release message can indicate resources (e.g., CG resource configuration) for the UE to use to transmit uplink communications while in an RRC inactive state. The UE can enter the RRC inactive state, and if the UE determines that it has data to transmit (within the scope of the CG-SDT configuration), the UE can expect to use the CG-SDT resources for uplink transmissions (even while the UE remains in the RRC inactive state). In some aspects, the UE can use a last known (e.g., most recently indicated) timing advance (TA) for the uplink transmissions. However, because conditions can have changed since the UE received the indication of the TA (e.g., the UE can have moved), the UE can validate the TA before transmitting the uplink transmissions via the CG-SDT resources. Once validated, the UE can use the TA for the uplink transmissions.
[0083] TA verification can be based on a determination of a difference between two reference signal received power (RSRP) measurements and a comparison of the difference to a threshold. If the difference exceeds (e.g., fails to satisfy) the threshold, meaning that the UE’s conditions have changed significantly, the UE can determine that the TA is invalid. In some aspects, restrictions or criteria can be imposed on which RSRP measurements can be used to determine whether the TA is valid. Currently, such restrictions or criteria can be time related. That is, the restrictions or criteria can be based on a relative timeline of the RSRP measurements. However, the current restrictions or criteria for RSRP verification can not cover scenarios that span bandwidth parts (BWPs) or component carriers (CCs), or use different reference signals for RSRP measurements. Further, currently, if the UE is configured with more than one CG-SDT configuration at different times, the UE can lack the ability to update TA verification. Thus, it can be desirable for the UE to use more explicit criteria in verifying RSRP measurements for TA verification. Further, it can also be desirable to have RSRP measurement verification for verifying CG resources.
[0084] The techniques described herein support measurement verification such that TA verification or CG resource verification (and selection) can be made for a CG-SDT procedure. A UE can receive a RRC release message that also indicates a communication resource for uplink communications, a timing advance command (TAC), a measurement resource for a TAC verification procedure, TAC verification information, and measurement verification information. The measurement verification information can include some timing related criteria and some non-timing related criteria. Based on the measurement resource, the UE can obtain first reference signal measurement information and second reference signal measurement information corresponding to a first reference signal and a second reference signal, respectively. Based on the measurement verification information, the UE can verify the measurement information for use in the TAC verification procedure, which the UE can perform while in an RRC inactive state (e.g., RRC INACTIVE). In some cases, the UE can verify the TAC to apply to transmission of the uplink communications, and transmit the uplink communications resources based on the verified TAC and the communication resource while still in the RRC inactive state.
[0085] Additionally or alternatively, the UE can perform CG resource validation. The UE can receive a RRC release message. In the case of CG resource validation, the RRC release message can indicate a communication resource for uplink communication, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information (for the corresponding validation procedure), and measurement validation information. The UE can obtain reference signal measurement information based on the measurement resource, and then validate the reference signal measurement information based on the measurement validation information. As such, the UE can use the reference signal measurement information as a valid input for the uplink communication resource validation procedure. While in the RRC inactive state, the UE can perform the uplink communication resource validation procedure, which can include validating the communication resource based on the uplink communication resource validation information. The UE can transmit the uplink communication using the validated communication resource while still in the RRC inactive state.
[0086] Aspects of the disclosure are first described in the context of a wireless communications system. Aspects of the disclosure are then discussed with reference to timelines and procedure flows. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts related to measurement configuration and validation for small data transmissions.
[0087] Figure 1 An example of a wireless communications system 100 that supports measurement configuration and validation for small data transmissions is shown in accordance with one or more aspects of the present disclosure. The wireless communications system 100 can include one or more network entities 105, one or more UEs 115, and a core network 130. In some aspects, the wireless communications system 100 can be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to some other wireless standard, including future iterations of the wireless standards explicitly mentioned herein.
[0088] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may include devices of varying forms or capabilities. In various aspects, the network entities 105 may be referred to as network elements, mobile elements, radio access network (RAN) nodes, or network devices, among other nomenclatures. In some aspects, the network entities 105 and the UEs 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entities 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entities 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the network entities 105 and the UEs 115 may support transmission of signals according to one or more radio access technologies (RATs).
[0089] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile at different times. The UEs 115 may be devices of different forms or with different capabilities. Figure 1 Some example UEs 115 are shown in FIG. Figure 1 As shown in , the UE 115 described herein may be capable of supporting communications with various types of devices, such as other UEs 115 or network entities 105.
[0090] As described herein, a node (which can be referred to as a node, network node, network entity, or wireless node) can include, be, a base station (e.g., any of the base stations described herein), a UE (e.g., any of the UEs described herein), a network controller, an apparatus, a device, a computing system, an integrated access and backhaul (IAB) node, a distributed unit (DU), a central unit (CU), a remote / radio unit (RU) (which can also refer to a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein, or be included in (e.g., be a component of) the foregoing (e.g., be a component of). For example, a network node can be a UE. As another example, a network node can be a base station or network entity. As another example, a first network node can be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node can be a UE, the second network node can be a base station, and the third network node can be a UE. In another aspect of this example, the first network node can be a UE, the second network node can be a base station, and the third network node can be a base station. In other aspects of this example, the first, second, and third network nodes can be different relative to these examples. Similarly, a reference to a UE, a base station, an apparatus, a device, a computing system, etc. can include a disclosure of a UE, a base station, an apparatus, a device, a computing system, etc. as a network node. For example, a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with the present disclosure, once a particular example is broadened in accordance with the present disclosure (e.g., a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node), the broader example can be interpreted in the reverse to the narrower example, but in a broad, open-ended manner. In the above example, in which a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node, the first network node can refer to a first UE, a first base station, a first apparatus, a first device, a first computing system, a first set of one or more components, a first processing entity, etc. configured to receive the information; and the second network node can refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second set of one or more components, a second processing entity, etc.
[0091] As described herein, different terminology can be used in various aspects to describe the communication of information (e.g., any information, signals, etc.). The disclosure of one communication term includes the disclosure of other communication terms. For example, a first network node can be described as being configured to transmit information to a second network node. In this example and consistent with the disclosure, the disclosure that the first network node is configured to transmit information to the second network node includes the disclosure that the first network node is configured to provide, send, output, communicate, or transmit information to the second network node. Similarly, in this example and consistent with the disclosure, the disclosure that the first network node is configured to transmit information to the second network node includes the disclosure that the second network node is configured to receive, obtain, or decode the information provided, sent, output, communicated, or transmitted by the first network node.
[0092] In some aspects, the network entities 105 can communicate with a core network 130, or with one another. For example, the network entities 105 can communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to an SI, N2, N3, or other interface protocol). In some aspects, the network entities 105 can communicate with one another (e.g., directly or via the core network 130) via backhaul communication links 120 (e.g., according to an X2, Xn, or other interface protocol). In some aspects, the network entities 105 can communicate with one another via midhaul communication links 162 (e.g., according to a midhaul interface protocol) or fronthaul communication links 168 (e.g., according to a fronthaul interface protocol). The backhaul communication links 120, midhaul communication links 162, or fronthaul communication links 168 can be or include one or more wired links (e.g., electrical, fiber optic), one or more wireless links (e.g., radio, wireless optical), etc., or various combinations thereof. A UE 115 can communicate with the core network 130 via communication links 155.
[0093] One or more of the network entities 105 described herein can include or can be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, a NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next Generation NodeB or giga-NodeB (either of which can be referred to as a gNB), 5G NB, a next Generation eNB (ng-eNB), a Home NodeB, a Home eNodeB, or other suitable terminology). In some aspects, the network entities 105 (e.g., base stations 140) can implement an aggregated (e.g., monolithic, standalone) base station architecture, which can be configured to utilize protocol stacks that are physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as a base station 140).
[0094] In some aspects, the network entity 105 can be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture), which can be configured to utilize a protocol stack that is physically or logically distributed among two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration initiated by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 can include one or more of a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near-real time RIC (near-RT RIC), a non-real time RIC (non-RT RIC)), or a service management and orchestration (SMO) 180 system. The RU 170 can also be referred to as a radio head, an intelligent radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmission reception point (TRP). One or more components of the network entity 105 in a disaggregated RAN architecture can be collocated, or one or more components of the network entity 105 can be located at distributed locations (e.g., separate physical locations). In some aspects, one or more network entities 105 of a disaggregated RAN architecture can be implemented as virtual units (e.g., a virtual CU (VCU), a virtual DU (VDU), a virtual RU (VRU)).
[0095] The functional split between the CU 160, the DU 165, and the RU 170 is flexible and can support different functionality depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at the CU 160, the DU 165, or the RU 170. For example, a functional split of the protocol stack can be employed between the CU 160 and the DU 165, such that the CU 160 can support one or more layers of the protocol stack, and the DU 165 can support one or more different layers of the protocol stack. In some aspects, the CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., RRC, Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 can be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 can host lower protocol layers, such as Layer 1 (LI) (e.g., Physical (PHY) layer) or L2 (e.g., Radio Link Control (RLC) layer, Medium Access Control (MAC) layer) functions and signaling, and each can be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack can be employed between the DU 165 and the RU 170, such that the DU 165 can support one or more layers of the protocol stack, and the RU 170 can support one or more different layers of the protocol stack. The DU 165 can support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between the CU 160 and the DU 165, or the functional split between the DU 165 and the RU 170 can be within a protocol layer (e.g., some functions for a protocol layer can be performed by one of the CU 160, the DU 165, or the RU 170, while other functions of that protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170). The CU 160 can be further functionally split into CU control plane (CU-CP) functions and CU user plane (CU-UP) functions. The CU 160 can be connected to one or more DUs 165 via a backhaul communication link 162 (e.g., Fl, Fl-c, Fl-u), and the DU 165 can be connected to one or more RUs 170 via a front-haul communication link 168 (e.g., open front-haul (FH) interface). In some aspects, the backhaul communication link 162 or the front-haul communication link 168 can be implemented in accordance with an interface (e.g., channel) between layers of a protocol stack supported by the respective network entities 105 communicating via such communication link.
[0096] In a wireless communication system (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access can support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) can be partially controlled by each other. One or more IAB nodes 104 can be referred to as a donor entity or IAB donor. One or more DUs 165 or one or more RUs 170 can be partially controlled by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) can communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). An IAB node 104 can include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by a coupled DU 165 of an IAB donor. The IAB-MT can include a separate set of antennas for relaying communications with UEs 115 or can share the same antennas of the IAB node 104 for accessing via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some aspects, an IAB node 104 can include a DU 165 that supports a relay chain or communication links with additional entities (e.g., IAB nodes 104, UEs 115) within a configuration to an access network (e.g., downstream). In such cases, one or more components of the disaggregated RAN architecture (e.g., one or more IAB nodes 104 or components of an IAB node 104) can be configured to operate according to the techniques described herein.
[0097] For example, an access network (AN) or RAN can include communications between an access node (e.g., an IAB donor), an IAB node 104, and one or more UEs 115. The donor IAB can facilitate a connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor can refer to a RAN node that has a wired or wireless connection to the core network 130. The IAB donor can include a CU 160 and at least one DU 165 (e.g., and RU 170), in which case the CU 160 can communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and IAB node 104 can communicate via an Fl interface according to a protocol that defines signaling messages (e.g., an Fl AP protocol). Additionally or alternatively, the CU 160 can communicate with the core network via an interface that can be an example of a backhaul link, and can communicate with other CUs 160 (e.g., a CU 160 associated with an alternative IAB donor) via an Xn-C interface that can be an example of a backhaul link.
[0098] An IAB node 104 can refer to a RAN node that provides IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities). A DU 165 can act as a distributed scheduling node toward child nodes associated with the IAB node 104, and an IAB-MT can act as a scheduling node toward parent nodes associated with the IAB node 104. That is, an IAB donor can be referred to as a parent node that communicates with one or more child nodes (e.g., the IAB donor can relay transmissions for a UE through one or more other IAB nodes 104). Additionally or alternatively, an IAB node 104 can also be referred to as a parent node or a child node to other IAB nodes 104, depending on the configuration of the relay chain or AN. Thus, an IAB-MT entity of an IAB node 104 can provide a Uu interface for a child IAB node 104 to receive signaling from a parent IAB node 104, and a DU interface (e.g., DU 165) can provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or a UE 115.
[0099] For example, an IAB node 104 can be referred to as a parent node that supports communications for a child IAB node, or as a child IAB node that is associated with an IAB donor. An IAB donor can include a CU 160 that has a wired or wireless connection (e.g., backhaul communication links 120) to a core network 130, and can act as a parent node to an IAB node 104. For example, a DU 165 of an IAB donor can relay transmissions through an IAB node 104 to a UE 115, or can signal transmissions directly to a UE 115. A CU 160 of an IAB donor can signal a communication link establishment to an IAB node 104 via an Fl interface, and the IAB node 104 can schedule transmissions (e.g., transmissions relayed from the IAB donor to a UE 115) through a DU 165. That is, data can be relayed to or from an IAB node 104 through signaling via an NR Uu interface to an MT of the IAB node 104. Communications with an IAB node 104 can be scheduled by a DU 165 of an IAB donor, and communications with an IAB node 104 can be scheduled by a DU 165 of the IAB node 104.
[0100] In cases where the techniques described herein are applied in the disaggregated RAN architecture context, one or more components of the disaggregated RAN architecture can be configured to support measurement configuration and validation for small data transmission as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) can additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).
[0101] A UE 115 can include or can be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” can also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 can also include or can be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some aspects, a UE 115 can include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which can be implemented in various objects such as appliances, or vehicles, meters, etc.
[0102] The UEs 115 described herein can be able to communicate with various types of devices, such as other UEs 115 that can sometimes act as relays or Figure 1 network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc., as discussed
[0103] The UEs 115 and network entities 105 can wirelessly communicate with each other using resources associated with one or more carriers via one or more communication links 125 (e.g., access links). The term “carrier” can refer to a set of RF spectrum resources having a defined physical layer structure for supporting communication links 125. For example, a carrier used for a communication link 125 can include a portion of a RF spectrum band (e.g., a BWP) that is
[0104] In some aspects, a carrier can also have acquisition signaling, or control signaling that coordinates operations for other carriers. A carrier can be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN)) and can be identified by a channel raster in order to be discovered (e.g., by UEs 115). Carriers can be operated in an independent manner, where UEs 115 can perform initial acquisition and connection establishment via the carriers, or the carriers can be operated in a non-independent manner, where connection establishment is performed using a different carrier (e.g., same or different radio access technology).
[0105] The communication links 125 shown in wireless communication system 100 can include downlink transmissions, e.g., forward link transmissions, from a network entity 105 to a UE 115, or uplink transmissions, e.g., return link transmissions, from a UE 115 to a network entity 105, and other configurations of transmissions. A carrier can be configured to carry downlink or uplink communications, e.g., in an FDD mode, or can be configured to carry both downlink and uplink communications, e.g., in a TDD mode.
[0106] A carrier can be associated with a particular bandwidth of the RF spectrum, and in some aspects, the carrier bandwidth can be referred to as the “system bandwidth” of the carrier or wireless communications system 100. For example, the carrier bandwidth can be one of a set of carrier bandwidths for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). A device, e.g., network entity 105 or UE 115, of wireless communications system 100 can have a hardware configuration that supports communications using a particular carrier bandwidth, or can be configurable to support communications using one of a set of carrier bandwidths. In some aspects, wireless communications system 100 can include network entities 105 or UEs 115 that support simultaneous communications using carriers associated with multiple carrier bandwidths. In some aspects, each served UE 115 can be configured to operate using portions (e.g., sub-bands, BWP) or all of a carrier bandwidth.
[0107] Signal waveforms transmitted over a carrier can be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element can refer to a single symbol period (e.g., duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme) employed in the wireless communications system 100. A resource grid can be used to represent time slots made up of multiple subcarriers and can be used to describe the time-frequency resource. For example, in some aspects, a resource grid can be formed from a time domain and a frequency domain, e.g., as shown in FIG. 3. Each time slot in the time domain can be referred to as a resource block (RB) or physical resource block (PRB), and each subcarrier in the frequency domain can be referred to as a frequency bin. The RPBs can carry information to or from the scheduled entities 115. For example, in some aspects, each to / from scheduled entity 115 can receive (or transmit) multiple RPBs, and the received (or transmitted) RPBs can be de- aggregated (or aggregated) for processing.
[0108] One or more digital schemes for a carrier may be supported, and the digital schemes may include subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different digital schemes. In some aspects, a UE 115 may be configured with multiple BWPs. In some aspects, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs.
[0109] The time interval for the network entity 105 or the UE 115 may be expressed in multiples of a basic time unit. For example, the basic time unit may be referred to as T s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can indicate the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each radio frame having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).
[0110] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some aspects, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix appended in front of each symbol period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the frequency band of operation.
[0111] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some aspects, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in the form of bursts of shortened TTIs (sTTIs)).
[0112] Physical channels can be multiplexed according to various techniques to use a carrier for communication. For example, physical control channels and physical data channels can be multiplexed for signaling via a downlink carrier using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel can be defined by a collection of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of a carrier. One or more control regions (e.g., CORESETs) can be configured for a collection of UEs 115. For example, one or more of the UEs 115 can monitor or search control regions for control information according to one or more search space sets, and each search space set can include one or more control channel candidates having one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate can refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. Search space sets can include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.
[0113] The network entity 105 can provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells). The term “cell” can refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and can be associated with a identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other identifier) used by a UE 115 to identify a cell. In some aspects, a cell can also refer to a coverage area 110 or a portion (e.g., a sector) of a coverage area 110 over which a logical communication entity operates. The size of such a cell can range from a small area (e.g., a building, a subset of a building) to a large area depending on various factors (such as the capabilities of the network entity 105). For example, a cell can be or include a building, a subset of a building, or an outdoor space between or overlapping with coverage areas 110, among other examples.
[0114] A macro cell can generally cover a relatively large geographic area (e.g., several kilometers in radius) and can allow unrestricted access by UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell can be associated with a lower- powered network entity 105 (e.g., a low-power base station 140) and can include infrastructure equipment operating at a reduced power level, supported by the network, to provide a coverage area that can be smaller than a coverage area of macro cells. Small cells can be deployed indoors, outside, or in other areas where there can be high demand for service. Small cells can be deployed to provide service to areas in which there is no service or limited service. A network entity 105 can support one or multiple cells, and can also support communication using one or more CCs via one or more cells.
[0115] In some aspects, a carrier can support multiple cells, and different cells can be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that can provide access for different types of devices.
[0116] In some aspects, a network entity 105 (e.g., base station 140, RU 170) can be mobile and thus provide communication coverage for a moving coverage area 110. In some aspects, different coverage areas 110 associated with different technologies can overlap, but different coverage areas 110 can be supported by the same network entity 105. In some other aspects, overlapping coverage areas 110 associated with different technologies can be supported by different network entities 105. Wireless communication system 100 can include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.
[0117] Wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, the network entities 105 (e.g., base stations 140) can have similar frame timings, and transmissions from different network entities 105 can be approximately aligned in time. For asynchronous operation, the network entities 105 can have different frame timings, and in some aspects, transmissions from different network entities 105 can not be aligned in time. The techniques described herein can be used for synchronous or asynchronous operation.
[0118] Some UEs 115, such as MTC or IoT devices, can be low cost or low complexity devices, and can provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., base station 140) without human intervention. In some aspects, M2M communication or MTC can include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that is application- or process-aware. Some UEs 115 can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
[0119] Some UEs 115 can be configured to employ operating modes that reduce power consumption, such as a half-duplex
[0120] The wireless communications system 100 can be configured to support super reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communications system 100 can be configured to support ultra-reliable low-latency communication (URLLC). UEs 115 can be designed to support super reliable, low-latency, or critical functions. The super reliable communication can include private communication or group communication and can be supported by one or more services, such as push-to-talk, video, or data. Support for super reliable, low-latency functions can include prioritization of services, and such services can be used for public safety or general commercial applications. The terms super reliable, low-latency, and ultra-reliable low- latency can be used interchangeably herein.
[0121] In some aspects, the UEs 115 can be configured to communicate directly with each other using device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P), D2D, or sidelink protocol). In some aspects, one or more UEs 115 in a group that is performing D2D communication can be within the coverage area 110 of a network entity 105 (e.g., base station 140, RU 170) that supports aspects of such D2D communication configured by the network entity 105 (e.g., scheduled by the network entity 105). In some aspects, one or more UEs 115 in such a group can be outside the coverage area 110 of a network entity 105 or can otherwise be unable to receive transmissions from a network entity 105. In some aspects, a group of UEs 115 communicating via D2D communication can support a one-to-many (1 :M) system in which each UE 115 transmits to every other UE 115 in a group. In some aspects, a network entity 105 can facilitate scheduling of resources for D2D communications. In some other aspects, D2D communications can be performed between UEs 115 without involvement of a network entity 105.
[0122] In some systems, D2D communication link 135 can be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115). In some aspects, vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle can signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some aspects, vehicles in a V2X system can communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or both.
[0123] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 can be an evolved packet core (EPC) or 5G core (5GC), which can include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes packets or interconnects to external networks, such as a serving gateway (S-GW), a Packet Data Network (PDN) gateway (P-GW), or a user plane function (UPF). The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UEs 115 served by network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets can be transferred through the user plane entity, which can provide IP address allocation as well as other functions. The user plane entity can be connected to the IP services 150 of the one or more network operators. The IP services 150 can include access to the Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service.
[0124] The wireless communications system 100 can operate using one or more frequency bands, which can be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Often, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band, since the wavelengths range from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features, but the waves can penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. The use of UHF frequencies typically requires
[0125] The wireless communications system 100 can also operate in a super high frequency (SHF) region, which can be between 3 GHz and 30 GHz, also known as centimeter band, or in an extremely high frequency (EHF) region of the spectrum, which can be between 30 GHz and 300 GHz, also known as millimeter band. In some aspects, the wireless communications system 100 can support millimeter wave (mmW) communications between UEs 115 and network entities 105 (e.g., base stations 140, RUs 170), and EHF antennas can be smaller and more closely spaced than UHF antennas. In some aspects, such techniques can facilitate use of antenna arrays. However, EHF transmissions can be subject to even more severe atmospheric attenuation and shorter range than SHF or UHF transmissions. Techniques disclosed herein can be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions can differ by country or regulating body.
[0126] The wireless communications system 100 can utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 can employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed frequency spectrum band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in unlicensed frequency spectrum bands, devices such as network entities 105 and UEs 115 can employ carrier sensing for collision detection and avoidance. In some aspects, operations in unlicensed frequency spectrum bands can be based on a carrier aggregation configuration in conjunction with operations in a licensed frequency spectrum band (e.g., LAA). Operations using unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
[0127] The network entity 105 (e.g., base station 140, RU 170) or UE 115 can be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 can be located in one or more antenna arrays or antenna panels, which can support MIMO operations or transmit beamforming or receive beamforming. For example, one or more base station antennas or antenna arrays can be co-located at an antenna assembly, such as an antenna tower. In some aspects, the antennas associated with the network entity 105 can be located at different geographic locations. The network entity 105 can include an array of antennas, having a set of columns and rows of antenna ports, which the network entity 105 can use for beamforming the communications supported with the UE 115. Similarly, a UE 115 can include one or more antenna arrays, which can support various MIMO or beamforming operations. Additionally or alternatively, an antenna panel can support RF beamforming of the signals transmitted via the antenna ports.
[0128] The network entity 105 or UE 115 can utilize MIMO communications to take advantage of multipath signal propagation and increase the spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques can be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals can be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream, and can carry
[0129] Beamforming, which can also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape and / or steer the shape of a signal in a specific direction. Beamforming can be achieved by combining the signals transmitted or received by antenna elements of an antenna array such that signals propagating along a certain direction experience constructive interference while others experience destructive interference. The adjustment of signals transmitted or received by each of the antenna elements can be done in such a way that the signals exchanged by a device with another device or devices are focused in a specific direction, which can be changed over time. The adjustment of signals transmitted or received by each of the antenna elements can be done by one or more radio frequency chains, one for each of the antenna elements, and / or one or more baseband chains. In general, a radio frequency chain can include drivers, amplifiers, filters, and / or one or more converters (e.g., digital-to-analog converters (DACs), analog-to-digital converters (ADCs), etc.).
[0130] A network entity 105 or UE 115 can use beam sweeping techniques as part of a beamforming operation. For example, a network entity 105 (e.g., a base station 140, a RU 170) can use multiple antennas or antenna arrays (e.g., antenna panels) to conduct a beamforming operation for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam- selection signals, or other control signals) can be transmitted by a network entity 105 multiple times in different directions. For example, the network entity 105 can transmit a signal according to different beamforming weight sets associated with different directions of transmission. The transmissions along different beam directions can be used by a receiving device, such as a UE 115, to identify a beam direction for subsequent transmission or reception by the network entity 105.
[0131] Some signals, such as data signals associated with a particular receiving device, can be transmitted by a transmitting device (e.g., a transmitting network entity 105, a transmitting UE 115) in a single beam direction (e.g., a direction associated with the receiving device, such as a receiving network entity 105 or a receiving UE 115). In some aspects, a beam direction associated with transmissions along a single beam direction can be determined based on a signal that was transmitted in one or more beam directions. For example, a UE 115 can receive one or more of the signals transmitted by the network entity 105 in different directions, and can report to the network entity 105 an indication of the signal, or set of signals, received by the UE 115 with highest signal quality or otherwise acceptable signal quality.
[0132] In some aspects, transmissions of a device (e.g., network entity 105 or UE 115) can be performed using multiple beam directions, and the device can use a combination of digital precoding or beamforming to generate a combined beam for transmissions (e.g., from network entity 105 to UE 115). A UE 115 can report feedback that indicates precoding weights for one or more beam directions, and the feedback can correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 can transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that can or can not be precoded. The UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted by a network entity 105 (e.g., base station 140, RU 170) in one or more directions, a UE 115 can employ similar techniques to transmit signals multiple times in different directions (e.g., for identifying beam directions for subsequent transmission or reception by the UE 115) or in a single direction (e.g., for transmitting data to a receiving device).
[0133] A receiving device (e.g., a UE 115) can perform reception operations according to multiple receive configurations (e.g., directional listening) when receiving various signals from a receiving device (e.g., network entity 105). For example, a receiving device can perform reception according to multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to sets of antenna elements at an antenna array, or by processing received signals according to different receive beamforming weight sets applied to sets of antenna elements at an antenna array, any of which can be referred to as“listening” according to different receive configurations or receive directions. In some aspects, a receiving device can use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal).
[0134] Wireless communications system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer can be IP -based. A RLC layer can perform packet segmentation and reassembly to communicate over logical channels. A MAC layer can perform priority handling and multiplexing of logical channels into transport channels. The MAC layer can also implement error detection techniques or error correction techniques to support retransmissions, improving link efficiency. In the control plane, an RRC layer can provide establishment, configuration, and maintenance actions to setup an RRC connection between a UE 115 and a network entity 105 or core network 130, to support radio bearers for user plane data. A PHY layer can map transmission channels to physical channels.
[0135] UEs 115 and network entities 105 can support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique used to increase the likelihood that data is received correctly over a communication link, such as communication link 125, D2D communication link 135. HARQ can include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve throughput at the MAC layer in poor radio conditions, such as low signal-to-noise conditions. In some aspects, a device can support same-slot HARQ feedback, in which case the device can provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In some other aspects, a device can provide HARQ feedback in a subsequent slot, or according to some other time interval.
[0136] Wireless communications system 100 can support CG-SDT transmissions, where a configuration of CG resources for uplink SDT by a UE 115 can be included in a RRC release (e.g., RRCRelease) message. A network entity 105 can transmit the CG resource configuration to the UE 115 in the RRC release message. In some aspects, the RRC release message can also include a suspend configuration (e.g., SuspendConfig). Further, the RRC release message can be used to reconfigure or release CG-SDT resources when the UE 115 is in an inactive state or mode (e.g., RRC_INACTIVE). As such, the CG resource configuration can enable the UE 115 to transmit uplink data while in the RRC inactive state. In some aspects, the CG resource configuration can include one Type 1 CG configuration. Alternatively, the CG resource configuration can support multiple CG-SDT configurations per carrier when the UE 115 is in the RRC inactive state.
[0137] The UE 115 can enter an RRC inactive state and, if the UE 115 has data to transmit, the UE 115 can transmit a first uplink message to the network entity 105 assuming a valid TA is configured. The first uplink message can be a CG transmission that includes a request to resume an RRC connection (e.g., RRCResumeReq) or uplink data. In this case, the UE 115 can remain in the RRC inactive state. In some cases, the network entity 105 can transmit a network response to the UE 115 after receiving the first uplink message. The network response can include feedback (e.g., ACK) or a retransmission, however, an RRC message can be missing. The UE 115 can perform subsequent data transmissions based on the network response. For example, the UE 115 can transmit additional uplink data and can receive downlink data from the network entity 105 in response to the uplink data. For CG-SDT, the subsequent data transmissions can use CG resources for new data transmissions or dynamic grant (DG) for retransmissions.
[0138] In some aspects, the network entity 105 can transmit a second RRC release message with a SuspendConfig during the CG-SDT procedure. The second RRC release message can update the CG resource configuration previously transmitted by the network entity. Thus, during a subsequent data transmission procedure in which the UE 115 can transmit one or more sets of additional uplink data using the CG resource configuration, the UE 115 can receive the second RRC release message, which can provide a second CG resource configuration (e.g., a second CG-SDT configuration). The second CG resource configuration can be different from the original CG resource configuration. For example, the second CG resource configuration can include a different modulation and coding scheme (MCS) resource allocation than the original CG resource configuration.
[0139] Additionally or alternatively, the wireless communications system 100 can support a 2-step or 4-step RACH based SDT procedure, which can be applied to a random access (RA)-SDT when the UE 115 is in an RRC inactive (e.g., RRC INACTIVE) state. In this case, the UE 115 can at least reestablish the SDT PDCP and resume use of the SDT resource blocks configured for small data. During subsequent data transmissions (after successful contention resolution), the UE 115 can monitor for a DG by a C-RNTI in a separate common search space (CSS) (if configured in the RA-SDT). Further, the network entity 105 can transmit an RRC release message at the end of the RA-SDT procedure to terminate the SDT procedure (in terms of the RRC connection with the UE 115).
[0140] The UE 115 can perform TA validation for CG-SDT based on collecting at least two RSRP samples or measurements (including a first RSRP measurement, RSRP1, and a second RSRP measurement, RSRP2) and comparing a difference between the RSRP measurements to a preconfigured threshold (e.g., cg-SDT-RSRP-ChangeThreshold). When the threshold is configured for TA validation, the UE 115 can use a latest available TA (e.g., a previous TA) to transmit using CG-SDT, provided that the first and second RSRP measurements are valid and meet the criteria for TA validation. For example, if a time change of RSRP1 relative to RSRP2 is within the threshold (e.g., meets the threshold), the UE 115 can assume that the previous TA is valid and continue to transmit uplink data via the previously configured CG resources and based on the previous TA. Alternatively, if the time change exceeds the threshold (e.g., fails to meet the threshold), the UE 115 can assume that the previous TA is no longer valid and, as a result, suspend the CG-SDT procedure and, in some cases, initiate a random access procedure to obtain a new TA.
[0141] In some aspects, the UE 115 can calculate RSRP1 and RSRP2 for different frequency ranges (FRs). For example, for FR1, the RSRP1 measurement can be given as (T1 - min(640 ms, M1 * T DRX )) < T1' < (T1 + min(640 ms, M1 * T DRX )) and the RSRP2 measurement can be given as (T2 - min(640 ms, M1 * T DRX )) < T2' < T2. Alternatively, for FR2, the RSRP1 measurement can be based on a SSB-based RRM measurement timing configuration (SMTC) periodicity given as (T1 - min(480 ms, 8 * SMTC periodicity)) < T1' < (T1 + max(480 ms, 8 * SMTC periodicity)) and the RSRP2 measurement can be given as (T2 - max(480 ms, 8 * SMTC periodicity)) < T2' < T2. In such examples, T1 can represent a time at which the UE 115 receives an RRC release message including a CG-SDT configuration or a time at which the UE 115 receives a latest (most recent) TA while in an RRC inactive state. T1' can represent a time at which the UE 115 has completed a measurement of RSRP1, T2 can represent a time at which the UE 115 performs TA validation for an uplink transmission using CG-SDT. T2' can represent a time at which the UE 115 has completed a measurement of RSRP2, and T DRXA discontinuous reception (DRX) cycle length in milliseconds can be represented.
[0142] In addition to TA validation for initial CG physical uplink shared channel (PUSCH) transmission, a UE 115 can perform RSRP measurements for initial and subsequent new transmissions for CG-SDT based on a different threshold (e.g., cg-SDT-RSRP-ThresholdSSB) to confirm whether the configured uplink grant is valid. In this case, the UE 115 can use a specified mapping between CG-PUSCH configuration period and synchronization signal block (SSB).
[0143] However, existing standards for such RSRP validation can lack explicitness for CD-SDT procedures. For example, the standards can not be adaptable for cross-BWP or cross-CC scenarios for TA validation. That is, when the UE 115 receives or performs RSRP1 measurements, the UE 115 can be in an RRC connected state (e.g., RRC CONNECTED) using a first carrier frequency or a first BWP. When the UE 115 receives an RRC release message and enters an RRC inactive state, then the UE 115 can receive or perform RSRP2 measurements in another carrier frequency or another BWP. Such factors are lacking in existing RSRP validation standards.
[0144] Additionally or alternatively, the standards can not clarify validation of RSRP measurements for different reference signals or RSRP validation for CG resource validation or selection. In some aspects using current RSRP validation techniques, a configuration period for CG-PUSCH (PUSCH resources for uplink CG-SDT) can be less than or equal to a period of SSBs such that a UE 115 (which can be a reduced capability (RedCap) or non-RedCap UE) can not be able to obtain new samples for RSRP measurements before some preconfigured CG-PUSCH occasions. That is, although the UE 115 can be required to perform CG resource validation or selection before each CG-PUSCH occasion, a configuration period for CG-PUSCH that is less than or equal to a period of SSBs can prevent the UE 115 from updating its RSRP measurements.
[0145] In some aspects using current RSRP validation techniques, a UE 115 (e.g., RedCap or non-RedCap) can be configured with more than one CG-SDT configuration at different times. For example, the UE 115 can receive a first CG resource configuration via a first RRC release message while in an RRC connected state. After the UE 115 enters an RRC inactive state, and performs uplink data transmissions more frequently or less frequently over time. However, the network entity 105 can be unable to update the CG-SDT configuration to account for the changed uplink data transmissions, which can limit validation of the previous TA. That is, although uplink timing alignment after an initial CG-PUSCH transmission can be maintained by a TA command (TAC) MAC-CE and a timer (e.g., cg-SDT-TimeAlignmentTimer), the UE 115 can still obtain valid samples of downlink reference signals (e.g., SSB or other downlink reference signals) at least for performing CG resource validation and selection, power control, and in some cases, for revalidating the TAC. If a non-cell defined (NCD)-SSB or downlink reference signal different from a cell defined (CD)-SSB is configured for CG-SDT, the UE 115 can need clarification on which RSRP measurements to use for TA validation and CG resource validation. Thus, the UE can achieve power saving and overhead reduction by using a uniform set of criteria for selecting valid samples of RSRP measurements for TA validation and CG resource validation.
[0146] Figure 2 An example of a wireless communications system 200 that supports measurement configuration and validation for small data transmissions is shown, in accordance with one or more aspects of the present disclosure. In some aspects, the wireless communications system 200 can implement, or can be implemented by, aspects of the wireless communications system 100. For example, the wireless communications system 200 can include a network entity 205-a (e.g., network node) and a network entity 205-b (e.g., network node), which can be examples of the UEs 115 and network entities 105 described herein, respectively. The network entity 205-a and the network entity 205-b can support CG-SDT procedures to increase power saving and reduce overhead.
[0147] The wireless communications system 200 can support communications between the network entity 205-a and the network entity 205-b via respective communication links 210, which can be examples of the communication links 110 described herein with reference to the wireless communications system 100. The network entity 205-a and the network entity 205-b can support CG-SDT procedures to increase power saving and reduce overhead. Figure 1Examples of the described communication links 125. For example, the network entity 205-a and the network entity 205-b can perform uplink and downlink communications via the communication link 210. In some aspects, the network entity 205-a and the network entity 205-b can communicate while in an RRC connected state (e.g., RRC CONNECTED) or an RRC inactive state (e.g., RRC INACTIVE).
[0148] In some aspects, the network entity 205-a and the network entity 205-b can support TA validation and CG resource validation for CG-SDT procedures. The network entity 205-a can receive first information 215, which can be associated with an RRC release 220 (e.g., a connected active state release). The RRC release 220 can release the network entity 205 from an RRC connected mode, such that the network entity 205-a can enter an inactive state (e.g., a connected inactive state). Further, the first information 215 can indicate communication resources for uplink communications 225 in the inactive state, a TAC, measurement resources for a TAC validation procedure, TAC validation information, and measurement validation information. The communication resources can include CG resources that the network entity 205-a can use to perform uplink communications while in the inactive state, and the TAC can be associated with a TA for the uplink communications 225. Further, the measurement resources can include reference signal measurements that can be used to validate the TAC, and the TAC validation information can include information that the network entity 205-a can use to validate the TAC for the uplink communications 225. Further, the measurement validation information can include one or more timing-related criteria and one or more non-timing-related criteria for validating the measurement information.
[0149] Based on the measurement resources, the network entity 205-a can obtain measurement information. The measurement information can include first reference signal measurement information corresponding to a first reference signal (e.g., a downlink reference signal, an SSB) and second reference signal measurement information corresponding to a second reference signal. For example, the first reference signal measurement information and the second reference signal measurement information can include RSRP measurements corresponding to each reference signal.
[0150] The network entity 205-a can validate the measurement information based on the measurement validation information, such that the measurement information can be used as valid input information for the TAC validation procedure. That is, the network entity 205-a can validate the one or more RSRP measurements, such that they can be used to validate the TAC.
[0151] When in the inactive state and based on validation of the measurement information, the network entity 205-a can perform a TAC validation procedure to validate a TAC for application to transmit an uplink communication 225 using the communication resources indicated in the first information 215. In this way, the network entity 205-a can use the communication resources and based on the validated TAC, transmit the uplink communication 225 to the network entity 205-b.
[0152] Additionally or alternatively, the network entity 205-a can perform a CG resource validation or selection based on a valid RSRP measurement. In this case, the first information 215 can indicate the communication resources for the uplink communication 225, measurement resources for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The communication resources can include CG resources that the network entity 205-a can use while in the inactive state. The measurement resources can include resources based on which the network entity 205-a can validate reference signal measurement information. The uplink communication resource validation information can include information that the network entity 205-a can use to validate the uplink communication resources, and the measurement validation information can include some criteria by which the network entity 205-a can validate the reference signal measurement information.
[0153] Based on the measurement resources, the network entity 205-a can obtain reference signal measurement information, which can include RSRP measurements corresponding to reference signals (e.g., downlink reference signals, SSBs). Further, based on the measurement validation information, the network entity 205-a can validate the reference signal measurement information as valid information that can be input into an uplink communication resource validation procedure. The network entity 205-a can enter an RRC inactive state and based on validating the measurement information, can perform an uplink communication resource validation procedure, which can include validating the communication resources based on the uplink communication resource validation information. Accordingly, the network entity 205-a can transmit the uplink communication 225 using the validated communication resources. In this way, the network entity 205-a can increase power saving and reduce overhead for CG-SDT procedures.
[0154] Figure 3 An example of a timeline 300 that supports measurement configuration and validation for small data transmissions is shown, in accordance with one or more aspects of the present disclosure. In some aspects, the timeline 300 can implement, or can be implemented by, aspects of the wireless communication systems 100 and 200. For example, a UE 115 (e.g., a network entity) can use the timeline 300 case 305 to validate RSRP samples for TA validation to improve CG-SDT procedures.
[0155] In some aspects, the UE 115 (e.g., a first network entity) can be in an RRC connected state (e.g., RRC CONNECTED) with the network entity 105 (e.g., a second network entity). The UE 115 can receive a CG-SDT configuration from the network entity 105 in a first BWP (e.g., BWP A). Further, the UE 115 can be configured to have a second BWP (e.g., BWP B) on a downlink or uplink to initiate a SDT procedure, where downlink reference signals can be transmitted in the first BWP and the second BWP.
[0156] Prior to an initial CG-PUSCH transmission and one or more autonomous retransmissions on one or more preconfigured PUSCH occasions, the UE 115 can perform TA validation using valid RSRP measurements corresponding to downlink reference signals while in an RRC inactive state (e.g., RRC INACTIVE). In some aspects, the downlink reference signals that are the basis for the RSRP measurements can also be configured as path loss reference signals for uplink CG-SDT.
[0157] The timeline 300 can indicate times at which the UE 115 can receive and measure reference signals in different BWPs, perform TA validation 320, and transmit uplink communications via CG-PUSCH occasions 325. Prior to transmitting on the CG-PUSCH occasion 325 at time T3, the UE 115 can collect at least two valid RSRP measurements or samples (e.g., RSRP1 and RSRP2 at times T1’ and T2’, respectively). For example, in case 305-a, the UE 115 can receive and measure a first instance of a reference signal 310-a within a first BWP used by the UE 115 while in an RRC connected state at time T1’. Further, the UE 115 can receive and measure a second instance of the reference signal 310-b within the first BWP at time T2’. The UE 115 can perform TA validation 320-a at time T2 (e.g., based on validating RSRP measurements corresponding to the reference signal 310-a and the reference signal 310-b), and transmit an uplink communication on the CG-PUSCH occasion 325-a at time T3.
[0158] In case 305-b, the UE 115 can receive and measure, at time T1’, a first instance of the reference signal 310c within the first BWP used by the UE 115 while in the RRC connected state. Further, the UE 115 can receive and measure, at time T2’, a first instance of the reference signal 315a within the second BWP used by the UE 115 while in the inactive state. The UE 115 can perform the TA validation 320-b at time T2 (e.g., based on validating RSRP measurements corresponding to the reference signal 310-c and the reference signal 315-a), and transmit on the CG-PUSCH occasion 325-b at time T3. Alternatively, in case 305-c, the UE 115 can receive and measure, at time T1’, a first instance of the reference signal 315b within the second BWP while in the RRC connected state. Further, the UE 115 can receive and measure, at time T2’, a second instance of the reference signal 315-c within the second BWP. The UE 115 can perform the TA validation 320-c at time T2 (e.g., based on validating RSRP measurements corresponding to the reference signal 315-b and the reference signal 315-c), and transmit on the CG-PUSCH occasion 325-c at time T3.
[0159] In some aspects, the UE 115 can validate the RSRP measurements (based on the reference signal 310 and the reference signal 315) for the TA validation 320 at time T2 based on some timing-related criteria and non-timing-related criteria. For example, the non-timing-related criteria can indicate that the UE 115 can perform the RSRP measurements (e.g., RSRP1 and RSRP2) on the same frequency range. Further, the timing-related criteria can indicate a relationship between the times T1’, T2’, T2, and T3. For example, time T1’ can represent a first time at which the UE 115 can obtain first reference signal measurement information (corresponding to the reference signal 310 or the reference signal 315), time T2’ can represent a second time at which the UE 115 can obtain second reference signal measurement information, T2 can represent a TAC validation time at which the UE 15 can perform the TA validation 320, and T3 can represent a transmission time for transmitting the uplink communication. Thus, the timing-related criteria can indicate that T1’ < T2’ < T2 < T3 (e.g., T1 can occur before T2’, T2’ can occur before or at the same time as T2, and T3 can occur after T2). The timing-related criteria can also indicate that T2 - A2 < T2’ < T2, T3 - T2 < A0, and T1 - Al < T1’ < T1 + Al.
[0160] In such timing-related criteria, AO > 0 and can be a constant or a configurable parameter (e.g., via system information (SI) or RRC signaling) that can represent an incremental time threshold. Further, T1 can represent a last time at which the UE 115 can receive a TAC of a primary timing advance group (TAG), or a last time at which the UE 115 can receive an RRC release message with SuspendConfig before or during the SDT. Further, Ai > 0 can be a constant or a configurable parameter (e.g., via SI or RRC signaling) and can be based on a frequency range of the SDT operation, a DRX cycle length, an SMTC cycle, a downlink reference signal type (e.g., SSB or CSI-RS), a number and configuration of receive antennas for RSRP measurement at T1’, and a measurement window configuration of a set of reference resources associated with the TA validation 320. Further, A2 > 0 can be a constant or a configurable parameter (e.g., via SI or RRC signaling) and can be based on a frequency range of the SDT operation, a DRX cycle length, an SMTC cycle, a downlink reference signal type (e.g., SSB or a tracking reference signal (TRS)), a number and configuration of receive antennas for RSRP measurement at T2’, and a measurement window configuration of a set of reference resources associated with the TA validation 320.
[0161] As described herein, the UE 115 can obtain RSRP1 and RSRP2 over the same frequency range by measuring the same downlink reference signal (Case 305-a and Case 305-c) or different downlink reference signals (Case 305-b). In some aspects, to perform the TA validation 320, the UE 115 can compare a difference between RSRP1 and RSRP2 to a threshold difference (e.g., cg-SDT-RSRP-ChangeThreshold). Further, the reference resources and corresponding configurations of the downlink reference signals (reference signals 310 and 315) that underlie RSRP1 and RSRP2 can be signaled to the UE 115 via RRC signaling or SI. If RSRP1 and RSRP2 are associated with different configurations of reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers of the reference signals, the UE 115 can apply an offset or scaling factor to RSRP1, RSRP2, or the threshold difference for the TA validation 320. In some aspects, the network entity 105 can indicate the offset or scaling factor to the UE 115.
[0162] Figure 4An example of a timeline 400 that supports measurement configuration and validation for small data transmissions is shown, in accordance with one or more aspects of the present disclosure. In some aspects, the timeline 400 can implement, or can be implemented by, aspects of the wireless communications systems 100 and 200. For example, a UE 115 (e.g., a network entity) can use the timeline 400, case 405, to validate RSRP samples for CG resource validation, which can improve the CG-SDT procedure.
[0163] As described herein with reference to Figure 2 and Figure 3 A UE 115 (e.g., a first network entity) can be in an RRC connected state (e.g., RRC CONNECTED) with a network entity 105 (e.g., a second network entity), as described herein with reference to FIGS. 1-3. The UE 115 can receive a CG-SDT configuration from the network entity 105 in a first BWP (e.g., BWP A). Further, the UE 115 can be configured to have a second BWP (e.g., BWP B) on the downlink or uplink to initiate the SDT procedure, where downlink reference signals can be transmitted in the first BWP and the second BWP. That is, the UE 115 can obtain RSRP1 at time T1’ and RSRP2 at time T2’, which can be reference signal measurements for CG resource validation 420.
[0164] Prior to an initial CG-PUSCH transmission, one or more autonomous retransmissions, or one or more new transmissions on one or more preconfigured PUSCH occasions at time T3, the UE 115 can perform TA validation while in an RRC inactive state (e.g., RRC INACTIVE) and using a valid RSRP measurement corresponding to the downlink reference signal. In some aspects, the UE (in the RRC inactive state) can perform CG resource validation or selection at time T3* based on a valid RSRP sample (RSRP3) obtained at time T3’, if the UE 115 has performed TA validation prior to the CG resource validation or selection at T3* (as described herein with reference to FIGS. 1-3). Figure 3 If the TA validation fails, the UE can skip subsequent CG resource validation or selection at or after time T3 at which the UE 115 can transmit on the CG-PUSCH occasions 425. In such a case, the UE 115 can not consider the corresponding CG-PUSCH occasions as valid uplink grants for CG-SDT.
[0165] In some aspects, one or more reference resources associated with CG resource validation or selection can be designated and signaled to the UE through RRC signaling or SI. In some cases, the reference resources for RSRP3 can be transmitted on the same frequency range as the CG-SDT. Further, the same or different reference signals can be designated for CG resource validation or selection across different CG-PUSCH occasions 425 of the CG-SDT procedure. In some aspects, to validate the reference signal, the UE 115 can compare the timing and value of the reference signal measurement information to a set of threshold measurements (e.g., cg-SDT-RSRP-Threshold). If the reference resources are associated with different configurations of downlink reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers, the UE 115 can apply an offset or scaling factor to RSRP3 or the threshold difference for RSRP validation.
[0166] Timeline 400 can indicate the times at which the UE 115 can receive and measure reference signals in different BWPs, perform CG resource validation 420, and transmit uplink communications via CG-PUSCH occasions 425. Prior to transmitting on CG-PUSCH occasions 425 at time T3, the UE 115 can collect at least two valid RSRP measurement values or samples (e.g., RSRP1 and RSRP2 at times T1’ and T2’, respectively). For example, in case 405-a, the UE 115 can receive and measure a first instance of reference signal 410 within a first BWP used by the UE 115 at time T3’ while in an RRC connected state. In case 405-b, the UE 115 can receive and measure a first instance of reference signal 415 within a second BWP used by the UE 115 while in an inactive state (e.g., a connected inactive state).
[0167] In some cases, the UE 115 can validate the RSRP samples for CG resource validation or selection at T3* based on some criteria. For example, the criteria can indicate that the reference resources (e.g., reference signal 410 or reference signal 415) can be associated with resource mapping between the reference signals and the CG-PUSCH occasions 425 of the CG-SDT. Further, the criteria can designate that the RSRP3 measurements and the CG-SDT procedure are on the same frequency range.
[0168] Further, the criteria can indicate a relationship among times T3', T3*, and T3. For example, time T3' can represent a first time at which the UE 115 can obtain first reference signal measurement information (corresponding to reference signal 410 or reference signal 415), time T3* can represent a communication resource validation time at which the UE 115 can perform a communication resource validation procedure, and T3 can represent a transmission time for transmission of an uplink communication. Thus, the time-related criteria can indicate T1' < T3' < T3* < T3 (e.g., T1' can occur before or at the same time as T3', T3' can occur before or at the same time as T3*, T3* can occur before T3). The time-related criteria can also indicate T3* - Δ3 < T3' < T3*, where Δ3 can be a constant or a configurable parameter. If Δ3 is a configurable parameter, Δ3 can depend at least on a frequency range of the SDT operation, a SMTC period, a downlink reference signal type (e.g., SSB, CSI-RS), a number and configuration of receive antennas used for RSRP3 measurement at T3', a number of receive antennas used for physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH) reception for the SDT. For example, in case 405-a, the UE 115 can receive reference signal 410 at time T3' and perform a communication validation procedure at time T3*. At time T3, the UE 115 can transmit an uplink communication.
[0169] If the downlink reference signal used for TA validation is also associated with resource mapping for CG-SDT, and if T1' or T2' satisfies the criteria related to CG resource validation or selection as described herein with reference to Figure 3 If the downlink reference signal used for TA validation is also associated with resource mapping for CG-SDT, and if T1' or T2' satisfies the criteria related to CG resource validation or selection as described herein with reference to
[0170] Figure 5An example of a process flow 500 that supports measurement configuration and validation for small data transmissions is shown in accordance with one or more aspects of the present disclosure. The process flow 500 can implement, or be implemented by, aspects of the wireless communications systems 100 and 200. For example, the process flow 500 can illustrate operations between a network entity 505-a (e.g., a UE 115 or network node) and a network entity 505-b (e.g., a network entity 105 or network node), which can be examples of the corresponding devices described herein. In the following description of the process flow 500, the operations between the network entity 505-a and the network entity 505-b can be transmitted in a different order than the example shown, or the operations performed by the network entity 505-a and the network entity 505-b can be executed at different times or in different orders. Some operations can also be omitted from the process flow 500, or other operations can be added to the process flow 500.
[0171] At 510, the network entity 505-a can receive, from the network entity 505-b and in association with the connection inactive state release, first information indicating: a communication resource for uplink communications in the connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria.
[0172] At 515, the network entity 505-a can obtain measurement information based on the measurement resource, the measurement information including first reference signal measurement information corresponding to the first reference signal and second reference signal measurement information corresponding to the second reference signal. The reference signal measurement information can include RSRP measurements.
[0173] At 520, the network entity 505-a can validate the measurement information as valid input information for the TAC validation procedure based on the measurement validation information.
[0174] At 525, the network entity 505-a can perform the TAC validation procedure while in the connection inactive state and based on the validation of the measurement information, where, to perform the TAC validation procedure, the network entity 505-a can validate the TAC for application to transmission of uplink communications using the communication resource based on the TAC validation information.
[0175] At 530, the network entity 505-a can transmit, to the network entity 505-b, an uplink communication using the communication resources while in the connected inactive state and based on the verified TAC. The uplink communication can include an initial CG-SDT transmission or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0176] Figure 6 An example of a process flow 600 that supports measurement configuration and validation for small data transmissions is shown, in accordance with one or more aspects of the present disclosure. The process flow 600 can implement, or can be implemented by, aspects of the wireless communications systems 100 and 200. For example, the process flow 600 can illustrate operations between a network entity 605-a (e.g., a UE 115 or network node) and a network entity 605-b (e.g., a network entity 105 or network node), which can be examples of the corresponding devices described herein. In the following description of the process flow 600, operations between the network entity 605-a and the network entity 605-b can be transmitted in a different order than the example order shown, or the operations performed by the network entity 605-a and the network entity 605-b can be performed in different orders or at different times. Some operations can also be omitted from the process flow 600, or other operations can be added to the process flow 600.
[0177] At 610, the network entity 605-a can receive, from the network entity 605-b and in association with the connected inactive state release, first information indicating: a communication resource for uplink communications in the connected inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information.
[0178] At 615, the network entity 605-a can obtain reference signal measurement information based on the measurement resource. At 620, the network entity 605-a can validate the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information.
[0179] At 625, the network entity 605-a can perform the uplink communication resource validation procedure while in the connected inactive state and based on the validation of the measurement information, where, to perform the uplink communication resource validation procedure, the network entity 605-a can validate the communication resource based on the uplink communication resource validation information.
[0180] At 630, the network entity 605-a can perform an uplink communication with the network entity 605-b.
[0181] Figure 7An apparatus 705 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The apparatus 705 can be an example of aspects of a UE 115 as described herein. The apparatus 705 can include a receiver 710, a transmitter 715, and a communications manager 720. The apparatus 705 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0182] The receiver 710 can provide a means for receiving information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information channels related to small data transmissions). Information can be passed on to other components of the device 705. The receiver 710 can utilize a single antenna or a set of multiple antennas.
[0183] The transmitter 715 can provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 can transmit information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information channels related to small data transmissions). In some aspects, the transmitter 715 can be collocated with the receiver 710 in a transceiver module. The transmitter 715 can utilize a single antenna or a set of multiple antennas.
[0184] The communications manager 720, the receiver 710, the transmitter 715, or various combinations thereof or various components thereof can be examples of means for performing various aspects of measurement configuration and validation for small data transmissions as described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof can support a method for performing one or more of the functions described herein.
[0185] In some aspects, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof can be implemented in hardware (e.g., in communications management circuitry). The hardware can include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, a microcode processor, a discrete gate or transistor logic, or discrete hardware components. In some aspects, a processor and a memory coupled with the processor can be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory).
[0186] Additionally, or alternatively, in some aspects, the communication manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof, can be implemented in code (e.g., as communication management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communication manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof, can be executed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).
[0187] In some aspects, the communication manager 720 can be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or in cooperation with the receiver 710 or the transmitter 715. For example, the communication manager 720 can receive information from the receiver 710, transmit information to the transmitter 715, or in combination with the receiver 710 or the transmitter 715 to obtain information, output information, or perform various other operations as described herein.
[0188] For example, the communication manager 720 can be configured as or otherwise support a means for receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The communication manager 720 can be configured as or otherwise support a means for obtaining, based on the measurement resource, measurement information including first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal. The communication manager 720 can be configured as or otherwise support a means for validating, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure. The communication manager 720 can be configured as or otherwise support a means for performing, while in the connection inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure includes validating, based on the TAC validation information, the TAC for application to transmission of uplink communications using the communication resource. The communication manager 720 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated TAC, the uplink communications using the communication resource.
[0189] For example, the communications manager 720 can be configured as or otherwise support a means for receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The communications manager 720 can be configured as or otherwise support a means for obtaining, based on the measurement resource, reference signal measurement information. The communications manager 720 can be configured as or otherwise support a means for validating, based on the measurement validation information, the reference signal measurement information as valid input information for the uplink communication resource validation procedure. The communications manager 720 can be configured as or otherwise support a means for performing, while in the connection inactive state and based on the validation of the reference signal measurement information, the uplink communication resource validation procedure, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information. The communications manager 720 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated communication resource, an uplink communication using the communication resource.
[0190] By including or configuring the communications manager 720 in accordance with examples as described herein, the device 705 (e.g., a processor of the device 705 controlling the receiver 710, the transmitter 715, the communications manager 720, or a combination of these components or otherwise coupled with these components) can support a technique for reducing processing, reducing power consumption, and more efficient utilization of communication resources.
[0191] Figure 8 A block diagram 800 of a device 805 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The device 805 can be an example of aspects of a device 705 or a UE 115 as described herein. The device 805 can include a receiver 810, a transmitter 815, and a communications manager 820. The device 805 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0192] The receiver 810 can provide a means for receiving information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information channels related to small data transmissions). Information can be passed on to other components of the device 805. The receiver 810 can utilize a single antenna or a set of multiple antennas.
[0193] The transmitter 815 can provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 can transmit information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information channels related to small data transmission). In some aspects, the transmitter 815 can be collocated with the receiver 810 in a transceiver module. The transmitter 815 can utilize a single antenna or a set of multiple antennas.
[0194] The device 805 or its various components can be an example of means for performing various aspects of measurement configuration and validation for small data transmission as described herein. The communications manager 820 can include a first information component 825, a measurement information component 830, a measurement validation component 835, a TAC validation component 840, an uplink communication component 845, or an uplink communication resource validation component 850, for example. The communications manager 820 can be an example of aspects of the communications manager 720 as described herein. In some aspects, the communications manager 820 or its various components can be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or in cooperation with the receiver 810 or the transmitter 815 or the receiver 710 or the receiver 715. For example, the communications manager 820 can receive information from the receiver 810, send information to the transmitter 815, or cooperate with the receiver 810 or the transmitter 815 in executing some of the operations as described herein.
[0195] The first information component 825 can be configured as or otherwise support a means for receiving, at the first network entity and in association with the connection active state release, first information indicating: a communication resource for uplink communications in the connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The measurement information component 830 can be configured as or otherwise support a means for obtaining, based on the measurement resource, measurement information including first reference signal measurement information corresponding to the first reference signal and second reference signal measurement information corresponding to the second reference signal. The measurement validation component 835 can be configured as or otherwise support a means for validating, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure. The TAC validation component 840 can be configured as or otherwise support a means for performing, while in the connection inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure includes validating, based on the TAC validation information, the TAC for application to transmission of uplink communications using the communication resource. The uplink communication component 845 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated TAC, the uplink communications using the communication resource.
[0196] The first information component 825 can be configured as or otherwise support a means for receiving, at the first network entity and in association with the connection active state release, first information indicating: a communication resource for uplink communications in the connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The measurement information component 830 can be configured as or otherwise support a means for obtaining, based on the measurement resource, reference signal measurement information. The measurement validation component 835 can be configured as or otherwise support a means for validating, based on the measurement validation information, the reference signal measurement information as valid input information for the uplink communication resource validation procedure. The uplink communication resource validation component 850 can be configured as or otherwise support a means for performing, while in the connection inactive state and based on the validation of the reference signal measurement information, the uplink communication resource validation procedure, where performing the uplink communication resource validation procedure includes validating, based on the uplink communication resource validation information, the communication resource. The uplink communication component 845 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated communication resource, the uplink communications using the communication resource.
[0197] Figure 9 communications manager 920 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure. The communications manager 920 can be an example of aspects of the communications manager 720 or the communications manager 820 described herein. The communications manager 920, or various components thereof, can be an example of means for performing various aspects of measurement configuration and validation for small data transmissions as described herein. For example, the communications manager 920 can include a first information component 925, a measurement information component 930, a measurement validation component 935, a TAC validation component 940, an uplink communication component 945, an uplink communication resource validation component 950, an offset or scaling factor component 955, or a threshold value component 960. Each of these components can communicate, directly or indirectly, with one another (e.g., via one or more buses).
[0198] The first information component 925 can be configured to or otherwise support a means for receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The measurement information component 930 can be configured to or otherwise support a means for obtaining, based on the measurement resource, measurement information including first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal. The measurement validation component 935 can be configured to or otherwise support a means for validating, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure. The TAC validation component 940 can be configured to or otherwise support a means for performing, while in the connection inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure includes validating, based on the TAC validation information, the TAC for application to transmission of uplink communications using the communication resource. The uplink communication component 945 can be configured to or otherwise support a means for transmitting, while in the connection inactive state and based on the validated TAC, an uplink communication using the communication resource.
[0199] In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a first instance of a reference signal within a first BWP, the first BWP being used by the first network entity while in a connected state. In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a second instance of the reference signal within the first BWP, the first BWP being used by the first network entity while in the connected state.
[0200] In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a first instance of a reference signal within a first BWP, the first BWP being used by the first network entity while in a connected state. In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a second instance of the reference signal within a second BWP, the second BWP being used by the first network entity while in a connected inactive state.
[0201] In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a first instance of a reference signal within a second BWP, the second BWP being used by the first network entity while in a connected inactive state, wherein the first BWP is used by the first network entity while in a connected state. In some aspects, to support obtaining measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a second instance of the reference signal within the second BWP, the second BWP being used by the first network entity while in the connected inactive state.
[0202] In some aspects, to support performing the TAC validation procedure, the TAC validation component 940 can be configured as or otherwise support a means for comparing a difference between the first reference signal measurement information and the second reference signal measurement information to a threshold difference.
[0203] In some aspects, the offset and scaling factor component 955 can be configured as or otherwise support a means for applying an offset or a scaling factor to at least one of the first reference signal measurement information, the second reference signal measurement information, or the threshold difference based on the first reference signal measurement information and the second reference signal measurement information being associated with different configurations of reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers of reference signals.
[0204] In some aspects, to support application of an offset and a scaling factor, the offset and scaling factor component 955 can be configured as or otherwise support a means for receiving an offset or a scaling factor to apply to at least one of the first reference signal measurement information, the second reference signal measurement signal, or the threshold difference.
[0205] In some aspects, the non-timing related criteria indicates that the first reference signal measurement information and the second reference signal measurement information are obtained in a same frequency range.
[0206] In some aspects, the timing related criteria indicates a first time at which the first reference signal measurement information is obtained, a second time at which the second reference signal measurement signal is obtained, a TAC validation time, and a transmission time for transmission of the uplink communication. In some aspects, the timing related criteria indicates that the first time is before the second time, the second time is before or at a same time as the TAC validation time, or the TAC validation time is before the transmission time.
[0207] In some aspects, the timing related criteria indicates that a difference between the TAC validation time and the second time is less than or equal to an incremental time threshold. In some aspects, the incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the first network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of the second reference signal, and a configuration of a receive antenna used to obtain the second reference signal measurement information at the second time.
[0208] In some aspects, the timing related criteria indicates that a difference between the transmission time and the TAC validation time is less than or equal to an incremental time threshold. In some aspects, the incremental time threshold has a value greater than zero.
[0209] In some aspects, the timing related criteria indicates that a difference between the message arrival time and the first time is less than or equal to an incremental time threshold. In some aspects, the message arrival time is a most recent time at which the first network entity receives a TAC of a master TA group or receives the first information. In some aspects, the incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the first network entity, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of the first reference signal, and a configuration of a receive antenna used to obtain the first reference signal measurement information at the first time.
[0210] In some aspects, the threshold component 960 can be configured as or otherwise support a means for receiving an indication of: a first threshold value associated with a difference between a TAC validation time and a second time, a second threshold value associated with a difference between a transmission time and the TAC validation time, and a third threshold value associated with a difference between a message arrival time and the first time, where the message arrival time is a most recent time at which the first network entity receives a TAC of a master TA group or receives the first information.
[0211] In some aspects, the uplink communication includes an initial CG-SDT transmission or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0212] In some aspects, the first information component 925 can be configured as or otherwise support a means for receiving, at the first network entity and in association with the connection inactive state release, first information indicating: a communication resource for uplink communications in the connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. In some aspects, the measurement information component 930 can be configured as or otherwise support a means for obtaining reference signal measurement information based on the measurement resource. In some aspects, the measurement validation component 935 can be configured as or otherwise support a means for validating the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information. The uplink communication resource validation component 950 can be configured as or otherwise support a means for performing the uplink communication resource validation procedure while in the connection inactive state and based on the validation of the reference signal measurement information, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information. In some aspects, the uplink communication component 945 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated communication resource, an uplink communication using the communication resource.
[0213] In some aspects, to support obtaining the reference signal measurement information, the measurement information component 930 can be configured as or otherwise support a means for receiving and measuring a reference signal within a first BWP or a second BWP, the first BWP used by the first network entity while in the connected state, the second BWP used by the first network entity while in the connection inactive state.
[0214] In some aspects, the validated communication resource is within a same frequency range as the measurement resource on which the reference signal measurement information is based.
[0215] In some aspects, to support verifying the reference signal measurement information, the measurement verification component 935 can be configured as or otherwise support a means for comparing timing and values of the reference signal measurement information to a set of threshold measurement values.
[0216] In some aspects, to support transmitting the uplink communications, the uplink communication component 945 can be configured as or otherwise support a means for transmitting a set of multiple uplink communications over a corresponding set of multiple verified uplink transmission occasions, where the uplink communication resource verification procedure is performed prior to each transmission.
[0217] In some aspects, the measurement verification component 935 can be configured as or otherwise support a means for receiving second information indicating a set of multiple reference resources for verifying the reference signal measurement information, each reference resource of the set of multiple reference resources being associated with a different uplink transmission occasion of the set of multiple verified uplink transmission occasions. In some aspects, the offset and scaling factor component 955 can be configured as or otherwise support a means for applying an offset or scaling factor to at least one of the reference signal measurement information or the set of threshold measurement values based on the set of multiple reference resources for verifying the reference signal measurement information being associated with a different reference signal, a different carrier frequency, a different configuration of receive antennas, or a different transmit power.
[0218] In some aspects, to support applying the offset and scaling factor, the offset and scaling factor component 955 can be configured as or otherwise support a means for receiving the offset or scaling factor to apply to at least one of the reference signal measurement information or the set of threshold measurement values.
[0219] In some aspects, the measurement verification information indicates that the set of multiple reference resources for the reference signal measurement information corresponds to a resource mapping between measurement resources that are a basis for the reference signal measurement information and the communication resources indicated in the first information. In some aspects, the measurement verification information indicates that the reference signal measurement information is obtained and the uplink communications are transmitted within a same frequency range.
[0220] In some aspects, the measurement validation information indicates a first time at which the first reference signal measurement information is obtained, a communication resource validation time, a transmission time for transmission of the uplink communication, and an increment time. In some aspects, the measurement validation information indicates that the first time is before or at a same time as the communication resource validation time, and the communication resource validation time is before the transmission time. In some aspects, the measurement validation information indicates that a difference between the communication resource validation time and the first time is less than or equal to the increment time.
[0221] In some aspects, the increment time has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the first network entity, a measurement window configuration for a reference signal associated with the communication resource validation, a type of reference signal that is a basis for the reference signal measurement information, a configuration of receive antennas used to obtain the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas used for downlink channel reception.
[0222] In some aspects, the TAC validation component 940 can be configured as or otherwise support a means for validating, when in a connected inactivity state, a TAC for application to transmission of an uplink communication using a communication resource indicated in the first information, where the TAC validation is based on validity of the reference signal measurement information as valid input information.
[0223] Figure 10 A diagram illustrating a system 1000 including a device 1005 that supports measurement configuration and validation for small data transmission in accordance with one or more aspects of the present disclosure is shown. The device 1005 can be an example of or include the components of device 705, device 805, or a UE 115 as described herein. The device 1005 can communicate with one or more network entities 105 or one or more UEs 115, for example, wirelessly. The device 1005 can include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1020, an input / output (I / O) controller 1010, a transceiver 1015, an antenna 1025, a memory 1030, code 1035, and a processor 1040. These components can be in electronic communication or otherwise
[0224] I / O controller 1010 can manage input and output signals for device 1005. I / O controller 1010 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1010 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1010 can utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 1010 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1010 may be implemented as part of a processor (such as processor 1040). In some cases, a user may interact with device 1005 via I / O controller 1010 or via hardware components controlled by I / O controller 1010.
[0225] In some cases, the device 1005 may include a single antenna 1025. However, in some other cases, the device 1005 may have more than one antenna 1025 that can transmit or receive multiple wireless transmissions simultaneously. As described herein, the transceiver 1015 can communicate bidirectionally via one or more antennas 1025, wired, or wireless links. For example, the transceiver 1015 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1015 can also include a modem for modulating packets to provide the modulated packets to the one or more antennas 1025 for transmission, and demodulating packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and the one or more antennas 1025, can be an example of a transmitter 715, a transmitter 815, a receiver 710, or a receiver 810 as described herein.
[0226] Memory 1030 may include random access memory (RAM) or read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed by processor 1040, cause device 1005 to perform the various functions described herein. Code 1035 may be stored in a non-transitory computer-readable medium (such as system memory or another type of memory). In some cases, code 1035 may not be directly executable by processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, memory 1030 may also contain, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.
[0227] The processor 1040 can include an intelligent hardware device, (e.g., a general- purpose processor, a DSP, a CPU, a GPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, or a discrete hardware component). In some cases, the processor 1040 can be configured to operate a memory array. In some other cases, a memory controller can be integrated into the processor 1040. The processor 1040 can be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting small data transmission). For example, the device 1005 or a component of the device 1005 can include the processor 1040 and the memory 1030 coupled with or to the processor 1040, the processor 1040 and the memory 1030 being configured to perform various functions described herein.
[0228] For example, the communications manager 1020 can be configured as or otherwise support a means for receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The communications manager 1020 can be configured as or otherwise support a means for obtaining, based on the measurement resource, measurement information including first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal. The communications manager 1020 can be configured as or otherwise support a means for validating, based on the measurement validation information, the measurement information as valid input information for the TAC validation procedure. The communications manager 1020 can be configured as or otherwise support a means for performing, while in the connection inactive state and based on the validation of the measurement information, the TAC validation procedure, where performing the TAC validation procedure includes validating, based on the TAC validation information, the TAC for application to transmission of uplink communications using the communication resource. The communications manager 1020 can be configured as or otherwise support a means for transmitting, while in the connection inactive state and based on the validated TAC, an uplink communication using the communication resource.
[0229] For example, the communication manager 1020 can be configured as or otherwise support a means for receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The communication manager 1020 can be configured as or otherwise support a means for obtaining reference signal measurement information based on the measurement resource. The communication manager 1020 can be configured as or otherwise support a means for validating the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information. The communication manager 1020 can be configured as or otherwise support a means for performing the uplink communication resource validation procedure while in the connection inactive state and based on the validation of the reference signal measurement information, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information. The communication manager 1020 can be configured as or otherwise support a means for transmitting an uplink communication using the communication resource while in the connection inactive state and based on the validated communication resource.
[0230] By including or configuring the communication manager 1020 in accordance with examples as described herein, the device 1005 can support a technique for reduced latency, improved communication reliability, and improved inter-device coordination.
[0231] In some aspects, the communication manager 1020 can be configured to use or work in conjunction with the transceiver 1015 or the one or more antennas 1025 to perform various operations (e.g., receiving, monitoring, transmitting). Although the communication manager 1020 is illustrated as a separate component, in some aspects, one or more functions described with reference to the communication manager 1020 can be supported by or performed by the processor 1040, the memory 1030, or the code 1035. For example, the code 1035 can include instructions executable by the processor 1040 to cause the device 1005 to perform various aspects of measurement configuration and validation for small data transmissions as described herein, or the processor 1040 and the memory 1030 can be otherwise configured to support or perform such operations.
[0232] Figure 11An apparatus 1105 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown in block diagram 1100. The apparatus 1105 can be an example of aspects of a network entity 105 as described herein. The apparatus 1105 can include a receiver 1110, a transmitter 1115, and a communications manager 1120. The apparatus 1105 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0233] The receiver 1110 can provide a means for obtaining (e.g., receiving, determining, identifying) information, such as user data or control information (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). The information can be passed on to other components of the apparatus 1105. In some aspects, the receiver 1110 can support obtaining the information by receiving signals through one or more antennas. Additionally or alternatively, the receiver 1110 can support obtaining the information by receiving signals through one or more wired (e.g., electrical, optical fiber) or wireless interfaces.
[0234] The transmitter 1115 can provide a means for outputting (e.g., transmitting, providing, communicating, sending) information generated by other components of the apparatus 1105. For example, the transmitter 1115 can output information, such as user data or control information (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some aspects, the transmitter 1115 can support outputting information by sending signals through one or more antennas. Additionally or alternatively, the receiver 1115 can support outputting information by sending signals through one or more wired (e.g., electrical, optical fiber) or wireless interfaces. In some aspects, the transmitter 1115 and the receiver 1110 can be collocated in a transceiver, which can include or be coupled to a modem.
[0235] The communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations thereof or various components thereof can be examples of means for performing various aspects of measurement configuration and validation for small data transmissions as described herein. For example, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof can support a method for performing one or more of the functions described herein.
[0236] In some aspects, the communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof, can be implemented in hardware (e.g., in communications management circuitry). The hardware can include a processor, a DSP, a CPU, an ASIC, an FPGA, or other programmable logic device, a microcode, discrete gate or transistor logic, or discrete hardware components, configured as or otherwise supporting a means for performing the functions described in this disclosure.
[0237] Additionally or alternatively, in some aspects, the communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof, can be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof, can be executed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).
[0238] In some aspects, the communication manager 1120 can be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or in cooperation with the receiver 1110 or the transmitter 1115 or the receiver 710 or the receiver 715. For example, the communication manager 1120 can receive information from the receiver 1110, transmit information to the transmitter 1115, or in combination with the receiver 1110 or the transmitter 1115 to obtain, output, or perform various other operations as described herein.
[0239] For example, the communication manager 1120 can be configured as or otherwise support a means for transmitting, by a first network entity and in association with a connection-inactive state release for a second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection-inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The communication manager 1120 can be configured as or otherwise support a means for receiving, using the communication resource, the uplink communications when the second network entity is in the connection-inactive state, receiving an indication that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0240] For example, the communications manager 1120 can be configured as or otherwise support a means for transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The communications manager 1120 can be configured as or otherwise support a means for receiving, using the communication resource, the uplink communications when the second network entity is in the connection inactive state, receiving measurement information obtained by the second network entity based on the measurement resource, the measurement information being indicated as valid based on the measurement validation information.
[0241] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 (e.g., a processor controlling the receiver 1110, the transmitter 1115, the communications manager 1120, or a combination of these or other components, or otherwise coupled to these components) can support a technique for reducing processing, reducing power consumption, and more efficient utilization of communication resources.
[0242] Figure 12 A block diagram 1200 of a device 1205 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The device 1205 can be an example of aspects of a device 1105 or network entity 105 as described herein. The device 1205 can include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0243] The receiver 1210 can provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data or control information (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). The information can be passed on to other components of the device 1205. In some aspects, the receiver 1210 can support obtaining the information by receiving signals through one or more antennas. Additionally or alternatively, the receiver 1210 can support obtaining the information by receiving signals through one or more wired (e.g., electrical, optical) or wireless interfaces.
[0244] The transmitter 1215 can provide a means for outputting (e.g., transmitting, providing, communicating, sending) information generated by other components of the device 1205. For example, the transmitter 1215 can output information such as user data or control information (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some aspects, the transmitter 1215 can support outputting information by sending signals over one or more antennas. Additionally or alternatively, the receiver 1215 can support outputting information by sending signals over one or more wired (e.g., electrical, optical) or wireless interfaces. In some aspects, the transmitter 1215 and the receiver 1210 can be collocated in a transceiver, which can include or be coupled to a modem.
[0245] The device 1205 or its various components can be an example of means for performing various aspects of measurement configuration and validation for small data transmission as described herein. The communications manager 1220 can include a first information component 1225 or an uplink communication component 1230, for example. The communications manager 1220 can be an example of aspects of the communications manager 1120 as described herein. In some aspects, the communications manager 1220 or its various components can be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or in cooperation with the receiver 1210 or the transmitter 1215 or in cooperation with the receiver 710 or the receiver 715. For example, the communications manager 1220 can receive information from the receiver 1210, send information to the transmitter 1215, or in cooperation with the receiver 1210 or the transmitter 1215 to obtain, output, or perform various other operations as described herein.
[0246] The first information component 1225 can be configured as or otherwise support a means for transmitting, by a first network entity and in association with a connection-inactive state release for a second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection-inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The uplink communication component 1230 can be configured as or otherwise support a means for receiving, using the communication resource, an uplink communication when the second network entity is in the connection-inactive state, receiving an indication that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0247] The first information component 1225 can be configured as or otherwise support a means for transmitting, by the first network entity and in association with a connection active state release for the second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The uplink communication component 1230 can be configured as or otherwise support a means for receiving, using the communication resource, an uplink communication when the second network entity is in the connection inactive state, receiving an indication that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0248] Figure 13 A block diagram 1300 illustrating the communication manager 1320 in accordance with one or more aspects of the present disclosure to support measurement configuration and validation for small data transmissions is shown. The communication manager 1320 can be an example of aspects of the communication manager 1120 or the communication manager 1220 described herein. The communication manager 1320, or various components thereof, can be an example of means for performing various aspects of measurement configuration and validation for small data transmissions as described herein. For example, the communication manager 1320 can include a first information component 1325, an uplink communication component 1330, a reference signal component 1335, an offset or scaling factor component 1340, or a threshold value component 1345. Each of these components can communicate, directly or indirectly, with one another (e.g., via one or more buses), which can include communication via protocol layers of a protocol stack, communication associated with logical channels of a protocol stack (e.g., between protocol layers of the protocol stack, within a device, component, or virtualized component associated with the network entity 105, between devices, components, or virtualized components associated with the network entity 105).
[0249] The first information component 1325 can be configured as or otherwise support a means for transmitting, by the first network entity and in association with a connection active state release for the second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The uplink communication component 1330 can be configured as or otherwise support a means for receiving, using the communication resource, an uplink communication when the second network entity is in the connection inactive state, receiving an indication that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0250] In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a first instance of a reference signal within a first BWP, the first BWP being used by the second network entity when in a connected state. In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a second instance of the reference signal within the first BWP, the first BWP being used by the second network entity when in the connected state.
[0251] In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a first instance of a reference signal within a first BWP, the first BWP being used by the second network entity when in a connected state. In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a second instance of the reference signal within a second BWP, the second BWP being used by the second network entity when in a connected inactive state.
[0252] In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a first instance of a reference signal within a second BWP, the second BWP being used by the second network entity when in a connected inactive state, wherein the first BWP is used by the first network entity when in a connected state. In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a second instance of the reference signal within the second BWP, the second BWP being used by the second network entity when in the connected inactive state.
[0253] In some aspects, the offset and scaling factor component 1340 can be configured as or otherwise support a means for transmitting an offset or a scaling factor for the second network entity to apply to at least one of: the first reference signal measurement information, the second reference signal measurement signal, or a threshold difference between the first reference signal measurement information and the second reference signal measurement information. In some aspects, the non-timing related criterion indicates that the first reference signal measurement information and the second reference signal measurement information are within a same frequency range.
[0254] In some aspects, the timing related criterion indicates a first time at which the second network entity obtains the first reference signal measurement information, a second time at which the second network entity obtains the second reference signal measurement information, a TAC validation time, and a transmission time for transmission of the uplink communication. In some aspects, the timing related criterion indicates that the first time is before the second time, the second time is before or at a same time as the TAC validation time, or the TAC validation time is before the transmission time.
[0255] In some aspects, the timing-related criterion indicates that a difference between the TAC validation time and the second time is less than or equal to an incremental time threshold. In some aspects, the incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the second network entity in the connected inactive state, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second measurement time.
[0256] In some aspects, the timing-related criterion indicates that a difference between the transmission time and the TAC validation time is less than or equal to an incremental time threshold. In some aspects, the incremental time threshold has a value greater than zero.
[0257] In some aspects, the timing-related criterion indicates that a difference between the message arrival time and the first time is less than or equal to an incremental time threshold. In some aspects, the message arrival time is a most recent time at which the first network entity received a TAC of the primary TA group or transmitted the first information. In some aspects, the incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the second network entity, a measurement window configuration for a set of multiple reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the first reference signal measurement information at the first time.
[0258] In some aspects, the threshold value component 1345 can be configured as or otherwise support a means for transmitting an indication of: a first threshold value associated with a difference between the TAC validation time and the second time, a second threshold value associated with a difference between the transmission time and the TAC validation time, and a third threshold value associated with a difference between the message arrival time and the first time, where the message arrival time is a most recent time at which the first network entity received a TAC of the primary TA group or transmitted the first information.
[0259] In some aspects, the uplink communication includes an initial CG-SDT transmission or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0260] In some aspects, the first information component 1325 can be configured as or otherwise support a means for transmitting, by the first network entity and in association with a connection activity state release for the second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connected inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. In some aspects, the uplink communication component 1330 can be configured as or otherwise support a means for receiving, using the communication resource, an uplink communication when the second network entity is in the connected inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0261] In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting a reference signal within the first BWP or the second BWP, the first BWP being used by the second network entity when in a connected state, the second BWP being used by the second network entity when in a connected inactive state. In some aspects, the validated communication resource is within a same frequency range as the measurement resource.
[0262] In some aspects, to support receiving the uplink communication, the uplink communication component 1330 can be configured as or otherwise support a means for receiving a set of multiple uplink communications over a corresponding set of multiple validated uplink transmission occasions.
[0263] In some aspects, the reference signal component 1335 can be configured as or otherwise support a means for transmitting second information indicating a set of multiple reference resources for validating the measurement information, each reference resource of the set of multiple reference resources being associated with a different uplink transmission occasion of the set of multiple validated uplink transmission occasions; and
[0264] In some aspects, the offset and scaling factor component 1340 can be configured as or otherwise support a means for transmitting an offset or a scaling factor to apply to at least one of the measurement information or the set of threshold measurement values. In some aspects, the measurement validation information indicates that the set of multiple reference resources for the measurement information corresponds to a resource mapping between the measurement resource and the communication resource indicated in the first information.
[0265] In some aspects, the measurement validation information indicates a first time at which the first reference signal measurement information is obtained, a communication resource validation time, a transmission time for transmission of the uplink communication, and an increment time. In some aspects, the measurement validation information indicates that the first time is before or at a same time as the communication resource validation time, and the communication resource validation time is before the transmission time. In some aspects, the measurement validation information indicates that a difference between the communication resource validation time and the first time is less than or equal to the increment time.
[0266] In some aspects, the increment time has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception cycle length associated with the second network entity, a measurement window configuration for a reference signal associated with the communication resource validation, a type of reference signal that is a basis for the reference signal measurement information, a configuration of receive antennas used to obtain the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas used for downlink channel reception.
[0267] Figure 14 A diagram illustrating a system 1400 including a device 1405 that supports measurement configuration and validation for small data transmission in accordance with one or more aspects of the present disclosure is shown. The device 1405 can be an example of or include the components of device 1105, device 1205, or network entity 105 as described herein. The device 1405 can communicate with one or more network entities 105 or one or more UEs 115, which can include communication over
[0268] The transceiver 1410 can support bi-directional communication over a wired or wireless link, as described herein. In some aspects, the transceiver 1410 can include a wired transceiver and can communicate with another wired transceiver bi-directionally. Additionally or alternatively, in some aspects, the transceiver 1410 can include a wireless transceiver and can communicate with another wireless transceiver bi-directionally. In some aspects, the device 1405 can include one or more antennas 1415, which can be capable of transmitting or receiving wireless transmissions (e.g., simultaneously). The transceiver 1410 can also include a modem to modulate signals, provide modulated signals for transmission (e.g., by the one or more antennas 1415, by a wired transmitter), receive modulated signals (e.g., from the one or more antennas 1415, from a wired receiver), and demodulate signals. In some implementations, the transceiver 1410 can include one or more interfaces, such as one or more interfaces coupled with one or more antennas 1415 configured to support various receive or obtain operations, or one or more interfaces coupled with one or more antennas 1415 configured to support various transmit or output operations, or a combination thereof. In some implementations, the transceiver 1410 can include or be configured for coupling with one or more processors or memory components that are operable to perform or support operations based on received or obtained information or signals, or generate information or other signals for transmission or other output. In some implementations, the transceiver 1410, or the transceiver 1410 and one or more antennas 1415, or the transceiver 1410 and one or more antennas 1415 and one or more processors or memory components (e.g., processor 1435, or memory 1425) can be included in a chip or chip assembly installed in the device 1405. In some aspects, the transceiver can be operable to support communication via one or more communication links (e.g., communication links 125, backhaul communication links 120, midhaul communication links 162, front-haul communication links 168).
[0269] The memory 1425 can include RAM and ROM. The memory 1425 can store computer-readable, computer-executable code 1430 including instructions that, when executed by the processor 1435, cause the device 1405 to perform various functions described herein. The code 1430 can be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1430 can not be directly executable by the processor 1435 but can cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 1425 can include, among other things, a BIOS, which can control basic hardware or software operation such as the interaction with peripheral components or devices.
[0270] The processor 1435 can include an intelligent hardware device, (e.g., a general- purpose processor, a DSP, a ASIC, a CPU, a FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic component, or a discrete hardware component). In some cases, the processor 1435 can be configured to operate a memory array using a memory controller. In some other cases, a memory controller can be integrated into the processor 1435. The processor 1435 can be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1425) to cause the device 1405 to perform various functions (e.g., functions or tasks for supporting small data transmissions). For example, the device 1405 or a component of the device 1405 can include the processor 1435 and the memory 1425 coupled with the processor 1435, the processor 1435 and the memory 1425 configured to perform various functions described herein. The processor 1435 can be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software (e.g., an operating system, virtual machine, or container instance)) that can host functions (e.g., by executing code 1430) to perform functions of the device 1405. The processor 1435 can be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1405, such as within the memory 1425. In some implementations, the processor 1435 can be a component of a processing system. A processing system can generally refer to a system or series of machines or components that receive inputs and process the inputs to produce a set of outputs (which can be passed to other systems or components of, for example, the device 1405). For example, a processing system of the device 1405 can refer to a system that includes various other components or subcomponents of the device 1405, such as the processor 1435, or the transceiver 1410, or the communications manager 1420, or other components of the device 1405 or combinations of components. The processing system of the device 1405 can interface with other components of the device 1405 and can process information received from other components (such as inputs or signals) or output information to other components. For example, a chip or modem of the device 1405 can include a processing system and an interface to output information or obtain information. The one or more interfaces can be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information, or the same interface configured to output and obtain information, among other implementations. In some implementations, the one or more interfaces can refer to an interface between a processing system of the chip or modem and a transmitter, such that the device 1405 can transmit information output from the chip or modem. Additionally or alternatively, in some implementations, the one or more interfaces can refer to an interface between a processing system of the chip or modem and a receiver, such that the device 1405 can receive information or signal inputs and can pass the information to the processing system.Those of ordinary skill in the art will readily recognize that the first interface can also receive information or signals input, and that the second interface can also output information or signals output.
[0271] In some aspects, bus 1440 can support communication within protocol layers of a protocol stack (e.g., within protocol layers). In some aspects, bus 1440 can support communication associated with logical channels of a protocol stack (e.g., between protocol layers of a protocol stack), which can include communication performed within components of device 1405, or between different components of device 1405 which can be collocated or located at different locations (e.g., where device 1405 can refer to a system in which one or more of the communication manager 1420, transceiver 1410, memory 1425, code 1430, and processor 1435 can be located in one component or can be partitioned among different components).
[0272] In some aspects, communication manager 1420 can manage aspects of communication with a core network 130 (e.g., via one or more wired or wireless backhaul links). For example, communication manager 1420 can manage the transfer of data communications for client devices, such as one or more UEs 115. In some aspects, communication manager 1420 can manage communications with other network entities 105, and can include a controller or scheduler for controlling communications with UEs 115 in cooperation with other network entities 105. In some aspects, communication manager 1420 can support an X2 interface within an LTE / LTE-A wireless communication network to provide communication between network entities 105.
[0273] For example, communication manager 1420 can be configured as or otherwise support a means for transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating: communication resources for uplink communications by the second network entity when the second network entity is in a connection inactive state, a TAC, measurement resources for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. Communication manager 1420 can be configured as or otherwise support a means for receiving, using the communication resources, uplink communications when the second network entity is in the connection inactive state, receiving an indication that measurement information obtained by the second network entity based on the measurement resources is valid based on the measurement validation information.
[0274] For example, the communication manager 1420 can be configured as or otherwise support a means for transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The communication manager 1420 can be configured as or otherwise support a means for receiving, using the communication resource, the uplink communications when the second network entity is in the connection inactive state, receiving measurement information obtained by the second network entity based on the measurement resource indicating that the measurement information is valid based on the measurement validation information.
[0275] By including or configuring the communication manager 1420 in accordance with examples as described herein, the device 1405 can support a technique for improving communication reliability, reducing latency, and improving coordination between devices.
[0276] In some aspects, the communication manager 1420 can be configured to use or otherwise employ the transceiver 1410 or the one or more antennas 1415 (e.g., as applicable), or to coordinate with the transceiver 1410 or the one or more antennas 1415, to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) described herein. Although the communication manager 1420 is illustrated as a separate component, in some aspects, one or more functions described with reference to the communication manager 1420 can be supported by or performed by the transceiver 1410, the processor 1435, the memory 1425, or the code 1430. For example, the code 1430 can include instructions executable by the processor 1435 to cause the device 1405 to perform various aspects of measurement configuration and validation for small data transmissions as described herein, or the processor 1435 and the memory 1425 can be otherwise configured to perform or support such operations.
[0277] Figure 15 A flow diagram illustrating a method 1500 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The operations of method 1500 can be implemented by a UE or its components as described herein. For example, the operations of method 1500 can be performed by a UE 115 as described with reference to FIG. 1A through FIG. ID. In some aspects, a UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE can perform aspects of the described functions using special-purpose hardware. Figures 1 to 10
[0278] At 1505, the method can include receiving, at the first network entity and in association with the connection inactive state release, first information indicating: a communication resource for uplink communications in the connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The operations of 1505 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1505 can be performed by a first information component 925 as described with reference to Figure 9
[0279] At 1510, the method can include obtaining measurement information based on the measurement resource, the measurement information including first reference signal measurement information corresponding to the first reference signal and second reference signal measurement information corresponding to the second reference signal. The operations of 1510 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1510 can be performed by a measurement information component 930 as described with reference to Figure 9
[0280] At 1515, the method can include validating the measurement information as valid input information for the TAC validation procedure based on the measurement validation information. The operations of 1515 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1515 can be performed by a measurement validation component 935 as described with reference to Figure 9
[0281] At 1520, the method can include performing the TAC validation procedure while in the connection inactive state and based on the validation of the measurement information, where performing the TAC validation procedure includes validating the TAC for application to transmission of uplink communications using the communication resource based on the TAC validation information. The operations of 1520 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1520 can be performed by a TAC validation component 940 as described with reference to Figure 9
[0282] At 1525, the method can include transmitting the uplink communications using the communication resource while in the connection inactive state and based on the validated TAC. The operations of 1525 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1525 can be performed by an uplink communication component 945 as described with reference to Figure 9
[0283] Figure 16 A flow diagram illustrating a method 1600 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The operations of method 1600 can be implemented by a UE or its components as described herein. For example, the operations of method 1600 can be performed by a UE 115 as described with reference to Figures 1 to 10 FIG. 15. In some aspects, a UE can execute a set of instructions to control its functional elements to perform the described functions. Additionally or alternatively, the UE can perform aspects of the described functions using special-purpose hardware.
[0284] At 1605, the method can include receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The operations of 1605 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1605 can be performed by a first information component 925 as described with reference to Figure 9 FIG. 15.
[0285] At 1610, the method can include obtaining reference signal measurement information based on the measurement resource. The operations of 1610 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1610 can be performed by a measurement information component 930 as described with reference to Figure 9 FIG. 15.
[0286] At 1615, the method can include validating the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information. The operations of 1615 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1615 can be performed by a measurement validation component 935 as described with reference to Figure 9 FIG. 15.
[0287] At 1620, the method can include performing an uplink communication resource validation procedure while in the connection inactive state and based on the validation of the reference signal measurement information, where performing the uplink communication resource validation procedure includes validating the communication resource based on the uplink communication resource validation information. The operations of 1620 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1620 can be performed by an uplink communication resource validation component 950 as described with reference to Figure 9 FIG. 15.
[0288] At 1625, the method can include transmitting, using the communication resources, an uplink communication while in the connection inactive state and based on the validated communication resources. The operations of 1625 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1625 can be performed by an uplink communication component 945 as described with reference to Figure 9 FIG. 19.
[0289] Figure 17 A flow diagram illustrating a method 1700 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The operations of method 1700 can be implemented by a network entity or its components as described herein. For example, the operations of method 1700 can be performed by a network entity as described with reference to Figures 1 to 6 FIGS. 12 through 15. Figures 11 to 14 In some aspects, a network entity can execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity can perform aspects of the described functions using special-purpose hardware.
[0290] At 1705, the method can include transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating a communication resource for an uplink communication by the second network entity when the second network entity is in a connection inactive state, a TAC, a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, where the measurement validation information includes one or more timing-related criteria and one or more non-timing-related criteria. The operations of 1705 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1705 can be performed by a first information component 1325 as described with reference to Figure 13 FIGS. 12 through 15.
[0291] At 1710, the method can include receiving, using the communication resource, the uplink communication while the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information. The operations of 1710 can be performed according to the examples as disclosed herein. In some aspects, aspects of the operations of 1710 can be performed by an uplink communication component 1330 as described with reference to Figure 13 FIGS. 12 through 15.
[0292] Figure 18 A flow diagram illustrating a method 1800 that supports measurement configuration and validation for small data transmissions in accordance with one or more aspects of the present disclosure is shown. The operations of method 1800 can be implemented by a network entity or its components as described herein. For example, the operations of method 1800 can be performed by a network entity as described with reference to Figures 1 to 6 FIGS. 12 through 15.Figures 11 to 14 The described network entity performs. In some aspects, the network entity can execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity can perform some or all of the described functions using special-purpose hardware.
[0293] At 1805, the method can include transmitting, by the first network entity and in association with a connection inactivity state release for the second network entity, first information indicating: a communication resource for uplink communications by the second network entity when the second network entity is in a connection inactivity state, a measurement resource for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information. The operations of 1805 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1805 can be performed by an information transmitting component as described with reference to Figure 13 The described first information component 1325 performs. In some aspects, the first information component 1325 can perform the operations of 1805.
[0294] At 1810, the method can include receiving, using the communication resource, an uplink communication while the second network entity is in the connection inactivity state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information. The operations of 1810 can be performed in accordance with examples as disclosed herein. In some aspects, aspects of the operations of 1810 can be performed by an uplink communication component 1330 as described with reference to Figure 13 The described uplink communication component 1330 performs. In some aspects, the uplink communication component 1330 can perform the operations of 1810.
[0295] SUMMARY
[0296] Aspect 1 : A method of wireless communication, comprising: receiving, at a first network entity and in association with a connection inactive state release, first information indicating: a communication resource for uplink communications in a connection inactive state, a timing advance command (TAC), a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, wherein the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; obtaining measurement information based on the measurement resource, the measurement information comprising first reference signal measurement information corresponding to a first reference signal and second reference signal measurement information corresponding to a second reference signal; validating the measurement information as valid input information for the TAC validation procedure based on the measurement validation information; performing the TAC validation procedure while in the connection inactive state and based on the validation of the measurement information, wherein performing the TAC validation procedure comprises validating the TAC based on the TAC validation information to apply to transmitting the uplink communications using the communication resource; and transmitting the uplink communications using the communication resource while in the connection inactive state and based on the validated TAC.
[0297] Aspect 2: The method of aspect 1, wherein obtaining the measurement information comprises: receiving and measuring a first instance of a reference signal within a first BWP, the first BWP used by the first network entity while in a connected state; and receiving and measuring a second instance of the reference signal within the first BWP, the first BWP used by the first network entity while in the connected state.
[0298] Aspect 3: The method of any of aspects 1-2, wherein obtaining the measurement information comprises: receiving and measuring a first instance of a reference signal within a first BWP, the first BWP used by the first network entity while in a connected state; and receiving and measuring a second instance of the reference signal within a second BWP, the second BWP used by the first network entity while in the connection inactive state.
[0299] Aspect 4: The method of any of aspects 1-3, wherein obtaining the measurement information comprises: receiving and measuring a first instance of a reference signal within a second BWP, the second BWP used by the first network entity while in the connection inactive state, wherein a first BWP is used by the first network entity while in a connected state; and receiving and measuring a second instance of the reference signal within the second BWP, the second BWP used by the first network entity while in the connection inactive state.
[0300] Aspect 5: The method of any of aspects 1-4, wherein performing the TAC validation procedure comprises comparing a difference between the first reference signal measurement information and the second reference signal measurement information to a threshold difference.
[0301] Aspect 6: The method of aspect 5, further comprising applying an offset or a scaling factor to at least one of the first reference signal measurement information, the second reference signal measurement information, or the threshold difference based on the first reference signal measurement information and the second reference signal measurement information being associated with different configurations of reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers of the reference signals.
[0302] Aspect 7: The method of aspect 6, wherein applying the offset or the scaling factor further comprises receiving the offset or the scaling factor to apply to at least one of the first reference signal measurement information, the second reference signal measurement information, or the threshold difference.
[0303] Aspect 8: The method of any of aspects 1-7, wherein the non-timing related criteria indicates that the first reference signal measurement information and the second reference signal measurement information are obtained within a same frequency range.
[0304] Aspect 9: The method of any of aspects 1-8, wherein the timing related criteria indicates a first time at which the first reference signal measurement information is obtained, a second time at which the second reference signal measurement information is obtained, a TAC validation time, and a transmission time for transmission of the uplink communication, and the timing related criteria indicates that the first time is before the second time, the second time is before or at a same time as the TAC validation time, or the TAC validation time is before the transmission time.
[0305] Aspect 10: The method of aspect 9, wherein the timing related criteria indicates a difference between the TAC validation time and the second time is less than or equal to an incremental time threshold, the incremental time threshold having a value greater than zero, and is based on one or more of a frequency range of the uplink communication, a DRX cycle length associated with the first network entity in the connected inactive state, a measurement window configuration for a plurality of reference resources associated with the TAC validation procedure, a type and configuration of the second reference signal, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second time.
[0306] Aspect 11: The method of any of aspects 9 through 10, wherein the timing-related criterion indicates that a difference between the transmission time and the TAC validation time is less than or equal to an incremental time threshold, the incremental time threshold having a value greater than zero.
[0307] Aspect 12: The method of any of aspects 9 through 11, wherein the timing-related criterion indicates that a difference between a message arrival time and the first time is less than or equal to an incremental time threshold, the message arrival time being a most recent time at which the first network entity receives a TAC of a primary TAG or receives the first information, and the incremental time threshold having a value greater than zero and being based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the first network entity, a measurement window configuration for a plurality of reference resources associated with the TAC validation procedure, a type and configuration of the first reference signal, and a configuration of a receive antenna used to obtain the first reference signal measurement information at the first time.
[0308] Aspect 13: The method of any of aspects 9 through 12, further comprising: receiving an indication of: a first threshold value associated with a difference between the TAC validation time and the second time, a second threshold value associated with a difference between the transmission time and the TAC validation time, and a third threshold value associated with a difference between a message arrival time and the first time, the message arrival time being a most recent time at which the first network entity receives a TAC of a primary TAG or receives the first information.
[0309] Aspect 14: The method of any of aspects 1 through 13, wherein the uplink communication comprises an initial CG (CG)-small data transmission (SDT) or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0310] Aspect 15: A method of wireless communication, comprising: receiving, at a first network entity and in association with a connection inactive state release, first information indicating: communication resources for uplink communications in a connection inactive state, measurement resources for an uplink communication resource validation procedure, uplink communication resource validation information, and measurement validation information; obtaining reference signal measurement information based on the measurement resources; validating the reference signal measurement information as valid input information for the uplink communication resource validation procedure based on the measurement validation information; performing the uplink communication resource validation procedure while in the connection inactive state and based on the validation of the reference signal measurement information, wherein performing the uplink communication resource validation procedure comprises validating the communication resources based on the uplink communication resource validation information; and transmitting the uplink communications using the validated communication resources while in the connection inactive state and based on the validated communication resources.
[0311] Aspect 16: The method of aspect 15, wherein obtaining the reference signal measurement information comprises: receiving and measuring a reference signal within a first BWP or a second BWP, the first BWP used by the first network entity while in a connected state, the second BWP used by the first network entity while in the connection inactive state.
[0312] Aspect 17: The method of any of aspects 15 through 16, wherein the validated communication resources are within a same frequency range as the measurement resources on which the reference signal measurement information is based.
[0313] Aspect 18: The method of any of aspects 15 through 17, wherein validating the reference signal measurement information comprises: comparing a timing and a value of the reference signal measurement information to a set of threshold measurement values.
[0314] Aspect 19: The method of aspect 18, wherein transmitting the uplink communications comprises: transmitting a plurality of uplink communications on a corresponding plurality of validated uplink transmission occasions, wherein the uplink communication resource validation procedure is performed prior to each transmission.
[0315] Aspect 20: The method of aspect 19, further comprising: receiving second information indicating a plurality of reference resources for validating the reference signal measurement information, each reference resource of the plurality of reference resources being associated with a different uplink transmission occasion of the plurality of validated uplink transmission occasions; and applying an offset or a scaling factor to at least one of the reference signal measurement information or the set of threshold measurements based on the plurality of reference resources for validating the reference signal measurement information being associated with different reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers.
[0316] Aspect 21 : The method of aspect 20, wherein applying the offset or the scaling factor further comprises: receiving the offset or the scaling factor to apply to at least one of the reference signal measurement information or the set of threshold measurements.
[0317] Aspect 22: The method of any of aspects 15 through 21, wherein the measurement validation information indicates that a plurality of reference resources for the reference signal measurement information correspond to a resource mapping between the measurement resources that are a basis for the reference signal measurement information and the communication resources indicated in the first information.
[0318] Aspect 23: The method of any of aspects 15 through 22, wherein the measurement validation information indicates that the reference signal measurement information is obtained and the uplink communication is transmitted within a same frequency range.
[0319] Aspect 24: The method of any of aspects 15 through 23, wherein the measurement validation information indicates a first time at which first reference signal measurement information is obtained, a communication resource validation time, a transmission time for transmission of the uplink communication, and an increment time, and the measurement validation information indicates that the first time is prior to or at a same time as the communication resource validation time, the communication resource validation time being prior to the transmission time.
[0320] Aspect 25: The method of aspect 24, wherein the measurement validation information indicates that a difference between the communication resource validation time and the first time is less than or equal to the increment time.
[0321] Aspect 26: The method of any of aspects 24 through 25, wherein the delta time has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the first network entity, a measurement window configuration for a reference signal associated with a communication resource validation, a type of reference signal that is a basis for the reference signal measurement information, a configuration of receive antennas used to obtain the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas used for downlink channel reception.
[0322] Aspect 27: The method of any of aspects 15 through 26, further comprising validating, when in the connected inactive state, a TAC indicated in the first information for application to transmission of the uplink communication, wherein the TAC validation is based on the validity of the reference signal measurement information as the valid input information.
[0323] Aspect 28: A method of wireless communication, comprising: transmitting, by a first network entity and in association with a connection active state release for a second network entity, first information indicating: a communication resource for uplink communication by the second network entity when the second network entity is in a connected inactive state, a timing advance command (TAC), a measurement resource for a TAC validation procedure, TAC validation information, and measurement validation information, wherein the measurement validation information comprises one or more timing-related criteria and one or more non-timing-related criteria; and receiving, when the second network entity is in the connected inactive state, the uplink communication using the communication resource, the reception indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement validation information.
[0324] Aspect 29: The method of aspect 28, further comprising: transmitting a first instance of a reference signal within a first BWP, the first BWP used by the second network entity when in a connected state; and transmitting a second instance of the reference signal within the first BWP, the first BWP used by the second network entity when in the connected state.
[0325] Aspect 30: The method of any of aspects 28 through 29, further comprising: transmitting a first instance of a reference signal within a first BWP, the first BWP used by the second network entity when in a connected state; and transmitting a second instance of the reference signal within a second BWP, the second BWP used by the second network entity when in the connected inactive state.
[0326] Aspect 31 : The method of any of aspects 28 through 30, further comprising: transmitting a first instance of a reference signal within a second BWP, the second BWP used by the second network entity while in the connected inactive state, wherein a first BWP is used by the first network entity while in a connected state; and transmitting a second instance of the reference signal within the second BWP, the second BWP used by the second network entity while in the connected inactive state.
[0327] Aspect 32: The method of any of aspects 28 through 31, further comprising: transmitting an offset or scaling factor for the second network entity to apply to at least one of: first reference signal measurement information, second reference signal measurement information, or a threshold difference between the first reference signal measurement information and the second reference signal measurement information.
[0328] Aspect 33: The method of any of aspects 28 through 32, wherein the non-timing related criteria indicates that first reference signal measurement information and second reference signal measurement information are within a same frequency range.
[0329] Aspect 34: The method of any of aspects 28 through 33, wherein the timing related criteria indicates a first time at which the second network entity obtains first reference signal measurement information, a second time at which the second network entity obtains the second reference signal measurement information, a TAC validation time, and a transmission time for transmission of the uplink communication, and the timing related criteria indicates that the first time is before the second time, the second time is before or at a same time as the TAC validation time, and the TAC validation time is before the transmission time.
[0330] Aspect 35: The method of aspect 34, wherein the timing related criteria indicates that a difference between the TAC validation time and the second time is less than or equal to an incremental time threshold, the incremental time threshold having a value greater than zero and being based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the second network entity in the connected inactive state, a measurement window configuration for a plurality of reference resources associated with the TAC validation procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the second reference signal measurement information at the second measurement time.
[0331] Aspect 36: The method of any of aspects 34 through 35, wherein the timing related criteria indicates that a difference between the transmission time and the TAC validation time is less than or equal to an incremental time threshold, the incremental time threshold having a value greater than zero.
[0332] Aspect 37: The method of any one of aspects 34 through 36, wherein the timing- related criterion indicates that a difference between a message arrival time and the first time is less than or equal to an incremental time threshold, the message arrival time is a most recent time at which the second network entity receives a TAC of a primary TAG or receives the first information, and the incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with the second network entity, a measurement window configuration for a plurality of reference resources associated with the TAC verification procedure, a type and configuration of reference signals, and a configuration of receive antennas used to obtain the first reference signal measurement information at the first time.
[0333] Aspect 38: The method of any one of aspects 34 through 37, further comprising transmitting an indication of: a first threshold value associated with a difference between the TAC verification time and the second time, a second threshold value associated with a difference between the transmission time and the TAC verification time, and a third threshold value associated with a difference between a message arrival time and the first time, wherein the message arrival time is a most recent time at which the first network entity transmits a TAC of a primary TAG or transmits the first information.
[0334] Aspect 39: The method of any one of aspects 28 through 38, wherein the uplink communication comprises an initial CG (CG)-small data transmission (SDT) or an autonomous retransmission prior to receiving a response message for the initial CG-SDT transmission.
[0335] Aspect 40: A method of wireless communication, comprising: transmitting, by a first network entity and in association with a connection inactive state release for a second network entity, first information indicating: a communication resource for an uplink communication by the second network entity when the second network entity is in a connection inactive state, a measurement resource for an uplink communication resource verification procedure, uplink communication resource verification information, and measurement verification information; and receiving, using the communication resource, the uplink communication while the second network entity is in the connection inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resource is valid based on the measurement verification information.
[0336] Aspect 41: The method of aspect 40, further comprising: transmitting a reference signal within a first BWP or a second BWP, the first BWP used by the second network entity when in a connected state, the second BWP used by the second network entity when in the connection inactive state.
[0337] Aspect 42: The method of any of aspects 40 through 41, wherein the validated communication resources are within a same frequency range as the measurement resources.
[0338] Aspect 43: The method of any of aspects 40 through 42, wherein receiving the uplink communication further comprises receiving a plurality of uplink communications within a corresponding plurality of validated uplink transmission occasions.
[0339] Aspect 44: The method of aspect 43, further comprising transmitting second information indicating a plurality of reference resources for validating the measurement information, each reference resource of the plurality of reference resources being associated with a different uplink transmission occasion of the plurality of validated uplink transmission occasions.
[0340] Aspect 45: The method of any of aspects 43 through 44, further comprising transmitting an offset or a scaling factor to apply to at least one of the measurement information or a set of threshold measurements.
[0341] Aspect 46: The method of any of aspects 40 through 45, wherein the measurement validation information indicates that a plurality of reference resources for the measurement information correspond to a resource mapping between the measurement resources and the communication resources indicated in the first information.
[0342] Aspect 47: The method of any of aspects 40 through 46, wherein the measurement validation information indicates a first time at which first reference signal measurement information is obtained, a communication resource validation time, a transmission time for transmitting the uplink communication, and an increment time, and the measurement validation information indicates that the first time is prior to or at a same time as the communication resource validation time, the communication resource validation time being prior to the transmission time.
[0343] Aspect 48: The method of aspect 47, wherein the measurement validation information indicates that a difference between the communication resource validation time and the first time is less than or equal to the increment time.
[0344] Aspect 49: The method of any of aspects 47-48, wherein the delta time has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a DRX cycle length associated with a second network entity, a measurement window configuration for the reference signal associated with a communication resource validation, a type of reference signal on which the reference signal measurement information is based, a configuration of receive antennas used to obtain the reference signal measurement information at the first time, a transmit power associated with the reference signal measurement information, and a configuration of receive antennas used for downlink channel reception.
[0345] Aspect 50: A first network entity for wireless communication, comprising a memory; and at least one processor coupled with the memory, wherein the at least one processor is configured to perform the method of any of aspects 1-14.
[0346] Aspect 51: An apparatus comprising at least one means for performing a method of any of aspects 1-14.
[0347] Aspect 52: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform a method of any of aspects 1-14.
[0348] Aspect 53: A first network entity for wireless communication, comprising a memory; and at least one processor coupled with the memory, wherein the at least one processor is configured to perform the method of any of aspects 15-27.
[0349] Aspect 54: An apparatus comprising at least one means for performing a method of any of aspects 15-27.
[0350] Aspect 55: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform a method of any of aspects 15-27.
[0351] Aspect 56: A first network entity for wireless communication, comprising a memory; and at least one processor coupled with the memory, wherein the at least one processor is configured to perform the method of any of aspects 28-39.
[0352] Aspect 57: An apparatus comprising at least one means for performing a method of any of aspects 28-39.
[0353] Aspect 58: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method of any of aspects 28 through 39.
[0354] Aspect 59: A first network entity for wireless communication, comprising a memory; and at least one processor coupled with the memory, wherein the at least one processor is configured to perform the method of any of aspects 40 through 49.
[0355] Aspect 60: An apparatus comprising at least one means for performing a method of any of aspects 40 through 49.
[0356] Aspect 61: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method of any of aspects 40 through 49.
[0357] The methods described above describe possible implementations, and that the operations and the steps can be rearranged or otherwise modified and that other implementations are possible. Furthermore, aspects from two or more of the methods can be combined.
[0358] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system can be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology can be used in much of the description, aspects of the described technology are applicable to other communication systems, including 5thGeneration (5G) and later. For example, the described techniques can be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
[0359] Information and signals described herein can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that can be referenced throughout the description can be represented by voltages, currents, electromagnetic waves, magnetic fields, or particles, or any combination thereof.
[0360] The various illustrative blocks and components described in connection with the disclosure herein can be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The general-purpose processor can be a microprocessor, but in the alternative, the processor can be any processor, controller, microcontroller, or state machine. The processor can also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
[0361] The functions described herein can be implemented in hardware, software executed by a processor, or firmware, and can be stored as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and claims. For example, due to the nature of software, functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions can also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0362] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media can comprise RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
[0363] As used herein, the term "or" is inclusive unless restrictive language is used in connection with the listed alternatives. For example, references to "X is based on A or B" should be interpreted as including within its scope X is based on A, X is based on B, and X is based on A and B. In this regard, references to "X is based on at least one of A or B" refer to "at least one of A or B" or "one or more of A or B" because "or" is inclusive. Similarly, references to "X is based on A, B, or C" should be interpreted as including within its scope X is based on A, X is based on B, X is based on C, X is based on A and B, X is based on A and C, X is based on B and C, and X is based on A, B, and C. In this regard, references to "X is based on A, B, or C" refer to "at least one of A, B, or C" or "one or more of A, B, or C" because "or" is inclusive. As an example of restrictive language, a reference to "X is based only on one of A or B" should be interpreted to include within its scope X being based on A and X being based on B, but not including X being based on both A and B. Furthermore, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, unless specifically stated otherwise, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A." Furthermore, as used herein, the phrase "set" should be interpreted to include the possibility of a set having one member. That is, the phrase "set" should be interpreted in the same manner as "one or more" or "at least one of."
[0364] The terms "determine" or "determining" encompass a wide variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database, or another data structure), ascertaining, etc. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Furthermore, "determining" may include solving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0365] In the drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number to distinguish between similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, regardless of the second or other subsequent reference numbers.
[0366] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that can be implemented or that are within the scope of the claims. The term “aspect” or “example” as used herein means “serving as an aspect, example, instance, or illustration,” and not “preferred” or “advantageous over other aspects.” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0367] The description herein is presented to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A first network entity for wireless communication, comprising: A processing system configured to: receiving, in association with a connection active state release, first information indicating: communication resources used for uplink communication in a connection inactive state, a timing advance command (TAC), measurement resources used for a TAC verification procedure, TAC verification information, and measurement verification information, wherein the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; obtaining measurement information based on the measurement resource, the measurement information including first reference signal measurement information corresponding to the first reference signal and second reference signal measurement information corresponding to the second reference signal; verifying, based on the measurement verification information, that the measurement information serves as valid input information for the TAC verification process; performing the TAC verification process when in the connection inactive state and based on the verification of the measurement information, wherein, to perform the TAC verification process, the processing system is configured to: verify the TAC based on the TAC verification information to apply to transmitting the uplink communication using the communication resource; and While in the connection inactive state and based on the verified TAC, the uplink communication is sent using the communication resources.
2. The first network entity according to claim 1, wherein: In order to obtain the measurement information, the processing system is configured to: receiving and measuring a first instance of a reference signal within a first bandwidth portion used by the first network entity while in a connected state; as well as A second instance of the reference signal within the first bandwidth portion is received and measured, the first bandwidth portion being used by the first network entity while in the connected state.
3. The first network entity according to claim 1, wherein: In order to obtain the measurement information, the processing system is configured to: receiving and measuring a first instance of a reference signal within a first bandwidth portion used by the first network entity while in a connected state; and A second instance of the reference signal within a second bandwidth portion is received and measured, the second bandwidth portion being used by the first network entity while in the connection inactive state.
4. The first network entity according to claim 1, wherein: In order to obtain the measurement information, the processing system is configured to: receiving and measuring a first instance of a reference signal within a second bandwidth portion used by the first network entity when in the connected inactive state, wherein the first bandwidth portion is used by the first network entity when in the connected state; and A second instance of the reference signal within the second bandwidth portion is received and measured, the second bandwidth portion being used by the first network entity while in the connection inactive state.
5. The first network entity according to claim 1, wherein: To perform the TAC verification process, the processing system is configured to: A difference between the first reference signal measurement information and the second reference signal measurement signal is compared with a threshold difference.
6. The first network entity according to claim 5, wherein: The processing system is further configured to: Based on the first reference signal measurement information and the second reference signal measurement information being associated with different configurations of reference signals, different carrier frequencies, different configurations of receive antennas, or different transmit powers of the reference signals, an offset or scaling factor is applied to at least one of the first reference signal measurement information, the second reference signal measurement information, or the threshold difference.
7. The first network entity according to claim 6, wherein: To apply the offset or the scaling factor, the processing system is further configured to: The offset or the scaling factor is received to be applied to at least one of the first reference signal measurement information, the second reference signal measurement signal, or the threshold difference.
8. The first network entity according to claim 1, wherein: The non-timing related criterion indicates that the first reference signal measurement information and the second reference signal measurement signal are obtained within the same frequency range.
9. The first network entity according to claim 1, wherein: The timing-related criteria indicates a first time at which the first reference signal measurement information is obtained, a second time at which the second reference signal measurement information is obtained, a TAC verification time, and a transmission time for transmitting the uplink communication, and The timing-related criterion indicates that the first time is before the second time, the second time is before or at the same time as the TAC verification time, and the TAC verification time is before the transmission time.
10. The first network entity according to claim 9, wherein: The timing-related criterion indicates that the difference between the TAC verification time and the second time is less than or equal to a delta time threshold, and The delta time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception period length associated with the first network entity in the connection-inactive state, a measurement window configuration for multiple reference resources associated with the TAC verification procedure, a type and configuration of the second reference signal, and a configuration of a receive antenna used to obtain the second reference signal measurement information at the second time.
11. The first network entity according to claim 9, wherein: The timing-related criterion indicates that the difference between the transmission time and the TAC verification time is less than or equal to a delta time threshold, and The delta time threshold has a value greater than zero.
12. The first network entity according to claim 9, wherein: The timing-related criterion indicates that the difference between the arrival time of the message and the first time is less than or equal to the delta time threshold, The message arrival time is a most recent time at which the first network entity receives a TAC of a primary timing advance group or receives the first information, and The incremental time threshold has a value greater than zero and is based on one or more of: a frequency range of the uplink communication, a discontinuous reception period length associated with the first network entity, a measurement window configuration for multiple reference resources associated with the TAC verification procedure, a type and configuration of the first reference signal, and a configuration of a receive antenna used to obtain the first reference signal measurement information at the first time.
13. The first network entity according to claim 9, wherein: The processing system is configured to: Receive an indication of: a first threshold value associated with a difference between the TAC verification time and the second time, a second threshold value associated with a difference between the transmission time and the TAC verification time, and a third threshold value associated with a difference between a message arrival time and the first time, wherein the message arrival time is a most recent time at which the first network entity receives a TAC for a master timing advance group or receives the first information.
14. The first network entity according to claim 1, wherein: The uplink communication includes an initial configuration grant (CG)-small data transmission (SDT) or an autonomous retransmission before receiving a response message to the initial CG-SDT.
15. A first network entity for wireless communication, comprising: A processing system configured to: sending, in association with a connection activity state release for a second network entity, first information indicating: communication resources used for uplink communication by the second network entity when the second network entity is in a connection inactive state, a timing advance command (TAC), measurement resources for a TAC verification procedure, TAC verification information, and measurement verification information, wherein the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; and The uplink communication is received using the communication resources while the second network entity is in the connected inactive state, the receiving indicating that measurement information obtained by the second network entity based on the measurement resources is valid based on the measurement verification information.
16. The first network entity according to claim 15, wherein: The processing system is configured to: transmitting a first instance of a reference signal within a first bandwidth portion used by the second network entity when in a connected state; and A second instance of the reference signal within the first bandwidth portion is transmitted, the first bandwidth portion being used by the second network entity while in the connected state.
17. The first network entity according to claim 15, wherein: The processing system is configured to: transmitting a first instance of a reference signal within a first bandwidth portion used by the second network entity when in a connected state; and A second instance of the reference signal within a second bandwidth portion is transmitted, the second bandwidth portion being used by the second network entity when in the connection inactive state.
18. The first network entity according to claim 15, wherein: The processing system is configured to: transmitting a first instance of a reference signal within a second bandwidth portion used by the second network entity when in the connected inactive state, wherein the first bandwidth portion is used by the first network entity when in the connected state; and A second instance of the reference signal within the second bandwidth portion is transmitted, the second bandwidth portion being used by the second network entity while in the connection inactive state.
19. The first network entity according to claim 15, wherein: The timing-related criteria indicates a first time at which the second network entity obtains first reference signal measurement information, a second time at which the second network entity obtains the second reference signal measurement information, a TAC verification time, and a transmission time for transmitting the uplink communication, and The timing-related criterion indicates that the first time is before the second time, the second time is before or at the same time as the TAC verification time, and the TAC verification time is before the transmission time.
20. A method of wireless communication performed by a first network entity, comprising: receiving, at the first network entity and in association with a connection active state release, first information indicating: communication resources for uplink communication in the connection inactive state, a timing advance command (TAC), measurement resources for a TAC verification procedure, TAC verification information, and measurement verification information, wherein the measurement verification information includes one or more timing-related criteria and one or more non-timing-related criteria; obtaining measurement information based on the measurement resource, the measurement information including first reference signal measurement information corresponding to the first reference signal and second reference signal measurement information corresponding to the second reference signal; verifying, based on the measurement verification information, that the measurement information serves as valid input information for the TAC verification process; performing the TAC verification process when in the connection inactive state and based on the verification of the measurement information, wherein performing the TAC verification process comprises: verifying the TAC to be applied to transmit the uplink communication using the communication resource based on the TAC verification information; and While in the connection inactive state and based on the verified TAC, the uplink communication is sent using the communication resources.