SCell Inactivation Indication by PDCCH

Abstract

A wireless communication system and method related to communicating a serving cell dormancy indication field and an acknowledgment. In some implementations, a wireless communication device (e.g., a user equipment) may detect a physical downlink control channel (PDCCH) with a secondary cell (Scell) dormancy indication field. The user equipment may change its state from an initial state to another state (e.g., from a dormant-like state to a non-dormant-like state) based on detecting the Scell ​​indicator field in the PDCCH. The user equipment may also transmit a hybrid ARQ acknowledgment (HARQ-ACK) in response to detecting the PDCCH with the Scell ​​dormancy indication field. Other aspects and features are also claimed and described.

Description

Technical Field

[0001] Cross - reference to Related Applications

[0001] This application claims priority and benefit to U.S. Patent Application No. 17 / 090,884, filed November 5, 2020, and U.S. Provisional Patent Application No. 62 / 933,099, filed November 8, 2019, which are hereby incorporated by reference in their entirety.

[0002]

[0002] This application relates to wireless communication systems, and more particularly, to indicating serving cell dormancy in a physical downlink control channel.

Background Art

[0003]

[0003] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). A wireless multi - connection communication system may include several base stations (BSs) that each simultaneously support communication for a plurality of communication devices, which may sometimes be known as user equipment (UE).

[0004]

[0004] To meet the increasing demand for expanding mobile broadband connectivity, wireless communication technology is evolving from Long-Term Evolution (LTE®) technology to next-generation New Radio (NR), sometimes referred to as the fifth generation (5G). For example, NR is designed to provide lower latency, higher bandwidth or throughput, and higher reliability than LTE. NR is designed to operate across a number of spectrum bands, from low-frequency bands below about 1 gigahertz (GHz) and mid-frequency bands from about 1 GHz to about 6 GHz, to high-frequency bands such as the millimeter wave (mmWave) band. NR is also designed to operate on different spectrum types, from licensed spectrum to unlicensed and shared spectrum. Spectrum sharing enables operators to opportunistically aggregate spectrum to dynamically support high-bandwidth services. Spectrum sharing can extend the benefits of NR technology to operating entities that may not have access to licensed spectrum.

SUMMARY OF THE INVENTION

[0005]

[0005] In the following, some aspects of the present disclosure are summarized to provide a basic understanding of the technology being discussed. This summary is not an extensive overview of all contemplated features of the present disclosure, nor is it intended to identify key or critical elements of all aspects of the present disclosure, or to delineate the scope of any or all aspects of the present disclosure. The sole purpose of this summary is to present some concepts of one or more aspects of the present disclosure in a summary form as a prelude to the more detailed description that is presented later.

[0006]

[0006] A UE in a wireless communication network can be served by one or more serving cells. To conserve power, the UE can change from a dormancy-like state to a non-dormancy-like state, and vice versa, for each serving cell or for a group of serving cells. The physical downlink control channel (PDCCH) can transmit a serving cell dormancy indication that can indicate to the UE when to change the state for each serving cell or on a serving cell group basis. In response to the dormancy indication, the UE can generate a hybrid-ARQ acknowledgment (HARQ-ACK) for the serving cell related to the UE so that the state of the serving cell regarding the UE is synchronized between the UE and the BS.

[0007]

[0007] An aspect is directed to a user equipment (UE), the UE comprising a processor configured to detect a physical downlink control channel (PDCCH) together with a secondary cell (Scell) dormancy indicator, wherein the Scell dormancy indicator is configured to switch the UE between a dormancy state and a non-dormancy state, and wherein, in the dormancy state, the UE is configured to operate at a reduced power compared to the non-dormancy state, and a transceiver configured to transmit a hybrid-ARQ acknowledgment (HARQ-ACK) in response to the processor detecting the PDCCH.

[0008]

[0008] A further aspect is directed to a UE, where the PDCCH further comprises downlink control information (DCI) including a Scell suspension indicator.

[0009]

[0009] A further aspect is directed to a UE, where the HARQ-ACK is a one-bit ACK indicating that the UE has detected the PDCCH.

[0010]

[0010] A further aspect is directed to a UE, where the processor is further configured to generate a codebook including at least one bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator, and incorporate the codebook into the HARQ-ACK.

[0011]

[0011] A further aspect is directed to a UE, where the codebook is a dynamic codebook or a semi-static codebook.

[0012]

[0012] A further aspect is directed to a UE, where the PDCCH further comprises DCI including a Scell suspension indicator and feedback timing information, and the processor is further configured to determine a number of slots using the feedback timing information in the DCI, and delay the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected.

[0013]

[0013] A further aspect is directed to a UE, where the DCI is a downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator.

[0014]

[0014] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, and wherein, to transmit HARQ-ACK, the transceiver is further configured to transmit HARQ-ACK in the resource indicated by the PUCCH resource indicator.

[0015]

[0015] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a Downlink Assignment Index (DAI) field, the processor is further configured to use the DAI field to determine a location of a bit of HARQ-ACK in a codebook, and wherein, to transmit HARQ-ACK, the transceiver is further configured to transmit HARQ-ACK in the codebook at the determined location.

[0016]

[0016] A further aspect is directed to a UE, where the PDCCH further comprises DCI including a Scell suspension indicator, and the processor is further configured to use a frequency domain resource assignment (FDRA) field in the DCI to determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data.

[0017]

[0017] A further aspect is directed to a UE, where, in order to determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, the processor is further configured to determine that resource allocation type zero is enabled and all bits in the FDRA are set to 0.

[0018]

[0018] A further aspect is directed to a UE, where, in order to determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, the processor is further configured to determine that resource allocation type zero and resource allocation type one are configured, resource allocation type zero is enabled, at least one bit in the bits of the FDRA is set to 0, and one bit in the FDRA is set to 1.

[0019]

[0019] A further aspect is directed to a UE, where the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, and the processor is further configured to determine that resource allocation type one is enabled and all bits in the FDRA are set to 1.

[0020]

[0020] A further aspect is directed to a UE, where a PDCCH is associated with a Scell suspension indicator and, to determine that it is not configured to schedule data, a processor is further configured to determine that resource allocation type 1 is enabled, at least one bit in the bits in the FDRA is set to 1, and one bit in the FDRA is set to 0.

[0021]

[0021] A further aspect is directed to a UE, where a Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH, and where a processor is further configured to modify the behavior of the UE using the modulation and coding scheme field.

[0022]

[0022] A further aspect is directed to a UE, where a Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH, and where a processor is further configured to modify the behavior of the UE using the new data indicator.

[0023]

[0023] A further aspect is directed to a UE, where a Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH, and where a processor is further configured to modify the behavior of the UE using the redundancy version indicator.

[0024]

[0024] A further aspect is directed to a UE, where the Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and where the processor is further configured to use the HARQ process number indicator to modify the behavior of the UE.

[0025]

[0025] A further aspect is directed to a UE, where the Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and where the processor is further configured to use the antenna port indicator to modify the behavior of the UE.

[0026]

[0026] A further aspect is directed to a UE, where the Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, and where the processor is further configured to use the DMRS sequence initialization indicator to modify the behavior of the UE.

[0027]

[0027] A further aspect is directed to a UE, where the processor is further configured to determine an application delay associated with the Scell suspension indicator and to change the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay.

[0028]

[0028] A further aspect is directed to a UE, where the processor is further configured to determine that the application delay is the time period during which the UE switches from a dormant bandwidth part to a non-dormant bandwidth part.

[0029]

[0029] A further aspect is directed to a UE, where the application delay is the same whether the PDCCH schedules data or does not schedule data.

[0030]

[0030] A further aspect is directed to a UE, where the PDCCH further comprises a DCI including a Scell dormancy indicator and a sounding reference signal (SRS) request field, and where the transceiver is further configured to transmit an SRS instead of a HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0031]

[0031] A further aspect is directed to a UE, where the PDCCH includes a transmission power command (TPC) indicator, and where the processor is further configured to use the TPC indicator to adjust the transmission power of a scheduled physical uplink control channel (PUCCH), and where the transceiver is further configured to transmit the PUCCH using the adjusted transmission power.

[0032]

[0032] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a TPC indicator.

[0033]

[0033] A further aspect is directed to a UE, where the TPC indicator adjusts the transmission power of the PUCCH for the serving cell according to the Scell suspension indicator.

[0034]

[0034] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and at least one DAI indicator, and the processor is further configured to use at least one DAI field to determine the location of the HARQ-ACK bits in the codebook, and herein, for transmitting the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in the codebook at the determined location.

[0035]

[0035] A further aspect is directed to a UE, where the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between UL grant reception and UL data transmission in the DL indicated by a Time Domain Resource Assignment (TDRA) indicator.

[0036]

[0036] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and the transceiver is further configured to receive a second PDCCH including a DL DCI together with a PUCCH resource indicator, and to transmit HARQ-ACK in the resources indicated by the PUCCH resource indicator in the DL DCI and using a slot, and the processor is further configured to determine that the slot for HARQ-ACK associated with the PDCCH including the UL DCI is the slot for a second HARD-ACK associated with the second PDCCH including the DL DCI.

[0037]

[0037] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and where, for transmitting HARQ-ACK, the transceiver is further configured to transmit HARQ-ACK in the resources indicated by at least one field in the UL DCI.

[0038]

[0038] A further aspect is directed to a UE, where the PDCCH further comprises a DL or UL DCI including a Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, and the processor is further configured to use the SLIV information to determine the location of the bits of HARQ-ACK in a semi-static codebook, and where, for transmitting HARQ-ACK, the transceiver is further configured to transmit HARQ-ACK in the semi-static codebook at the determined location.

[0039]

[0039] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and a channel state information (CSI) request field, and wherein the transceiver is further configured to transmit CSI instead of HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0040]

[0040] An aspect is directed to a method, the method comprising, at a user equipment (UE), detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein, in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, and transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH.

[0041]

[0041] A further aspect is directed to a method, where the PDCCH further comprises downlink control information (DCI) including a Scell suspension indicator.

[0042]

[0042] A further aspect is directed to a method, where the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH.

[0043]

[0043] A further aspect is directed to a method, the method further comprising generating a codebook including at least 1 bit indicating that the method has detected a PDCCH together with a Scell suspension indicator, and incorporating the codebook into the HARQ-ACK.

[0044]

[0044] A further aspect is directed to a method, where the codebook is a dynamic codebook or a semi-static codebook.

[0045]

[0045] A further aspect is directed to a method, where the PDCCH further comprises DCI including a Scell suspension indicator and feedback timing information, and further comprises determining the number of slots using the feedback timing information in the DCI, and delaying the transmission of HARQ-ACK by the number of slots for the slot in which the PDCCH is detected.

[0046]

[0046] A further aspect is directed to a method, where the DCI is a downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator.

[0047]

[0047] A further aspect is directed to a method, where the PDCCH further comprises DL DCI including a Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, and where transmitting HARQ-ACK further comprises transmitting HARQ-ACK in the resource indicated by the PUCCH resource indicator.

[0048]

[0048] A further aspect is directed to a method, where the PDCCH further comprises DL DCI including a Scell suspension indicator and a downlink allocation index (DAI) field, and further comprises determining the location of the bits of HARQ-ACK in the codebook using the DAI field, and where transmitting HARQ-ACK further comprises transmitting HARQ-ACK in the codebook at the determined location.

[0049]

[0049] A further aspect is directed to a method, where the PDCCH further comprises DCI including a Scell suspension indicator, and uses a frequency domain resource allocation (FDRA) field in the DCI to further determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data.

[0050]

[0050] A further aspect is directed to a method, where determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0.

[0051]

[0051] A further aspect is directed to a method, where determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises configuring resource allocation type 0 and resource allocation type 1, determining that resource allocation type 0 is enabled, setting at least one bit in the bits of the FDRA to 0, and setting one bit in the FDRA to 1.

[0052]

[0052] A further aspect is directed to a method, where determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises determining that resource allocation type 1 is enabled and all bits in the FDRA are set to 1.

[0053]

[0053] A further aspect is directed to a method, where determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises determining that resource allocation type 1 is enabled, setting at least one bit in the bits of the FDRA to 1, and setting one bit in the FDRA to 0.

[0054]

[0054] A further aspect is directed to a method, where the Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the modulation and coding scheme field.

[0055]

[0055] A further aspect is directed to a method, where the Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the new data indicator.

[0056]

[0056] A further aspect is directed to a method, where the Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the redundancy version indicator.

[0057]

[0057] A further aspect is directed to a method, where the Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the HARQ process number indicator.

[0058]

[0058] A further aspect is directed to a method, where the Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the antenna port indicator.

[0059]

[0059] A further aspect is directed to a method, where the Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, and further comprises modifying the behavior of the UE using the DMRS sequence initialization indicator.

[0060]

[0060] A further aspect is directed to a method, wherein determining an application delay associated with a Scell suspension indicator and modifying the behavior of a UE based on the Scell suspension indicator during a time period associated with the application delay are performed.

[0061]

[0061] A further aspect is directed to a method, wherein it is determined that the application delay is a time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part.

[0062]

[0062] A further aspect is directed to a method, wherein the application delay is the same whether the PDCCH schedules data or does not schedule data.

[0063]

[0063] A further aspect is directed to a method, wherein the PDCCH further comprises a DCI including a Scell suspension indicator and a sounding reference signal (SRS) request field, and further comprises transmitting an SRS instead of a HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0064]

[0064] A further aspect is directed to a method, wherein the PDCCH includes a transmit power command (TPC) indicator, and further comprises adjusting the transmit power of a scheduled physical uplink control channel (PUCCH) using the TPC indicator and transmitting the PUCCH using the adjusted transmit power.

[0065]

[0065] A further aspect is directed to a method, wherein the PDCCH further comprises a DL DCI including a TPC indicator.

[0066]

[0066] A further aspect is directed to a method, wherein the TPC indicator adjusts the transmit power of the PUCCH for a serving cell according to the Scell suspension indicator.

[0067]

[0067] A further aspect is directed to a method, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and at least one DAI indicator, further comprises determining the location of HARQ-ACK bits in a codebook using at least one DAI field, and wherein transmitting HARQ-ACK further comprises transmitting HARQ-ACK in the codebook at the determined location.

[0068]

[0068] A further aspect is directed to a method, where the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between receiving a UL grant in the DL indicated by a time domain resource allocation (TDRA) indicator and UL data transmission.

[0069]

[0069] A further aspect is directed to a method, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and further comprises receiving a second PDCCH including a DL DCI together with a PUCCH resource indicator, determining that a slot for HARQ-ACK associated with the PDCCH including the UL DCI is a slot for a second HARD-ACK associated with the second PDCCH including the DL DCI, and further comprises transmitting HARQ-ACK in the resource indicated by the PUCCH resource indicator in the DL DCI and using the slot.

[0070]

[0070] A further aspect is directed to a method, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and wherein transmitting HARQ-ACK further comprises transmitting HARQ-ACK in the resource indicated by at least one field in the UL DCI.

[0071]

[0071] A further aspect is directed to a method, where the PDCCH further comprises DL or UL DCI including a Scell suspension indicator, and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, further comprising determining the location of bits of HARQ-ACK in a semi-static codebook using the SLIV information, and wherein transmitting HARQ-ACK further comprises transmitting HARQ-ACK in the semi-static codebook at the determined location.

[0072]

[0072] A further aspect is directed to a method, where the PDCCH further comprises UL DCI including a Scell suspension indicator and a channel state information (CSI) request field, and further comprising transmitting CSI instead of HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0073]

[0073] An aspect is directed to a non-transitory computer-readable medium recording program code, the program code comprising, in a user equipment (UE), code for detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein, in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, and code for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH.

[0074]

[0074] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises downlink control information (DCI) including a Scell suspension indicator.

[0075]

[0075] A further aspect is directed to a non-transitory computer-readable medium, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH.

[0076]

[0076] A further aspect is directed to a non-transitory computer-readable medium, the non-transitory computer-readable medium further comprising code for generating a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with a Scell suspension indicator, and code for incorporating the codebook into the HARQ-ACK.

[0077]

[0077] A further aspect is directed to a non-transitory computer-readable medium, wherein the codebook is a dynamic codebook or a semi-static codebook.

[0078]

[0078] A further aspect is directed to a non-transitory computer-readable medium, wherein the PDCCH further comprises DCI including a Scell suspension indicator and feedback timing information, and further comprises code for determining the number of slots using the feedback timing information in the DCI, and code for delaying the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected.

[0079]

[0079] A further aspect is directed to a non-transitory computer-readable medium, wherein the DCI is a downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator.

[0080]

[0080] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, and where the code for transmitting HARQ-ACK further comprises a code for transmitting HARQ-ACK in a resource indicated by the PUCCH resource indicator.

[0081]

[0081] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a downlink allocation index (DAI) field, and further comprises a code for determining the location of bits of HARQ-ACK in a codebook using the DAI field, and where the code for transmitting HARQ-ACK further comprises a code for transmitting HARQ-ACK in the codebook at the determined location.

[0082]

[0082] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a DCI including a Scell suspension indicator, and further comprises a code for determining, using a frequency domain resource allocation (FDRA) field in the DCI, that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data.

[0083]

[0083] A further aspect is directed to a non-transitory computer-readable medium, where the code for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises a code for determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0.

[0084]

[0084] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH is associated with a Scell suspension indicator, and the code for determining that it is not configured to schedule data comprises a resource allocation type 0 and a resource allocation type 1 being configured, the resource allocation type 0 being enabled, and further comprising code for determining that at least one bit in the bits of the FDRA is set to 0 and one bit in the FDRA is set to 1.

[0085]

[0085] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH is associated with a Scell suspension indicator, and the code for determining that it is not configured to schedule data comprises the resource allocation type 1 being enabled, and further comprising code for determining that all bits in the FDRA are set to 1.

[0086]

[0086] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH is associated with a Scell suspension indicator, and the code for determining that it is not configured to schedule data comprises the resource allocation type 1 being enabled, and further comprising code for determining that at least one bit in the bits of the FDRA is set to 1 and one bit in the FDRA is set to 0.

[0087]

[0087] A further aspect is directed to a non - transitory computer - readable medium, where the Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH, and further comprises code for modifying the behavior of the UE using the modulation and coding scheme field.

[0088]

[0088] A further aspect is directed to a non-transitory computer-readable medium, where the Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH, and further comprises code for using the new data indicator to modify the behavior of the UE.

[0089]

[0089] A further aspect is directed to a non-transitory computer-readable medium, where the Scell suspension indicator includes a redundant version indicator in at least one DCI in the PDCCH, and further comprises code for using the redundant version indicator to modify the behavior of the UE.

[0090]

[0090] A further aspect is directed to a non-transitory computer-readable medium, where the Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and further comprises code for using the HARQ process number indicator to modify the behavior of the UE.

[0091]

[0091] A further aspect is directed to a non-transitory computer-readable medium, where the Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and further comprises code for using the antenna port indicator to modify the behavior of the UE.

[0092]

[0092] A further aspect is directed to a non-transitory computer-readable medium, where the Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, and further comprises code for using the DMRS sequence initialization indicator to modify the behavior of the UE.

[0093]

[0093] A further aspect is directed to a non - transitory computer - readable medium, the non - transitory computer - readable medium further comprising code for determining an application delay associated with an Scell suspension indicator and code for changing the behavior of a UE based on the Scell suspension indicator during a time period associated with the application delay.

[0094]

[0094] A further aspect is directed to a non - transitory computer - readable medium, the non - transitory computer - readable medium further comprising code for determining that the application delay is a time period during which the UE switches from a suspended bandwidth part to a non - suspended bandwidth part.

[0095]

[0095] A further aspect is directed to a non - transitory computer - readable medium, where the application delay is the same whether the PDCCH schedules data or does not schedule data.

[0096]

[0096] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH further comprises a DCI including an Scell suspension indicator and a sounding reference signal (SRS) request field, and further comprises code for transmitting an SRS instead of a HARQ - ACK as an affirmative response that the PDCCH has been detected by the UE.

[0097]

[0097] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH includes a transmit power command (TPC) indicator, and further comprises code for adjusting the transmit power of a scheduled physical uplink control channel (PUCCH) using the TPC indicator and code for transmitting the PUCCH using the adjusted transmit power.

[0098]

[0098] A further aspect is directed to a non - transitory computer - readable medium, where the PDCCH further comprises a DL DCI including a TPC indicator.

[0099]

[0099] A further aspect is directed to a non-transitory computer-readable medium, where the TPC indicator adjusts the transmission power of the PUCCH for the serving cell according to the Scell suspension indicator.

[0100]

[0100] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a UL DCI including the Scell suspension indicator and at least one DAI indicator, further comprises code for determining the location of the HARQ-ACK bits in the codebook using at least one DAI field, and wherein transmitting the HARQ-ACK further comprises code for transmitting the HARQ-ACK in the codebook at the determined location.

[0101]

[0101] A further aspect is directed to a non-transitory computer-readable medium, where the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between receiving a UL grant and transmitting UL data in the DL indicated by a time domain resource allocation (TDRA) indicator.

[0102]

[0102] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a UL DCI including the Scell suspension indicator, and code for receiving a second PDCCH including the DL DCI together with a PUCCH resource indicator, and code for determining that the slot for the HARQ-ACK associated with the PDCCH including the UL DCI is the slot for the second HARD-ACK associated with the second PDCCH including the DL DCI, and further comprises code for transmitting the HARQ-ACK in the resource indicated by the PUCCH resource indicator in the DL DCI and using the slot.

[0103]

[0103] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and where the code for transmitting a HARQ-ACK further comprises a code for transmitting the HARQ-ACK in a resource indicated by at least one field in the UL DCI.

[0104]

[0104] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a DL or UL DCI including a Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, and further comprises a code for using the SLIV information to determine the location of bits of HARQ-ACK in a semi-static codebook, and where the code for transmitting a HARQ-ACK further comprises a code for transmitting the HARQ-ACK in the semi-static codebook at the determined location.

[0105]

[0105] A further aspect is directed to a non-transitory computer-readable medium, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and a channel state information (CSI) request field, and further comprises a code for transmitting CSI instead of a HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0106]

[0106] An aspect is directed to a user equipment (UE), the UE comprising means for detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, where the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and where, in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, and means for transmitting a hybrid automatic repeat request affirmative acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH.

[0107]

[0107] A further aspect is directed to a UE, where the PDCCH further comprises downlink control information (DCI) including a Scell suspension indicator.

[0108]

[0108] A further aspect is directed to a UE, where the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH.

[0109]

[0109] A further aspect is directed to a UE, where the UE further comprises means for generating a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator, and means for incorporating the codebook into the HARQ-ACK.

[0110]

[0110] A further aspect is directed to a UE, where the codebook is a dynamic codebook or a semi-static codebook.

[0111]

[0111] A further aspect is directed to a UE, where the PDCCH further comprises DCI including a Scell suspension indicator and feedback timing information, and means for determining the number of slots using the feedback timing information in the DCI, and means for delaying the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected.

[0112]

[0112] A further aspect is directed to a UE, where the DCI is downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator.

[0113]

[0113] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a Physical Uplink Control Channel (PUCCH) resource indicator, and where the means for transmitting HARQ-ACK further comprises means for transmitting HARQ-ACK in a resource indicated by the PUCCH resource indicator.

[0114]

[0114] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a Scell suspension indicator and a Downlink Assignment Index (DAI) field, and further comprises means for determining the location of bits of HARQ-ACK in a codebook using the DAI field, and where the means for transmitting HARQ-ACK further comprises means for transmitting HARQ-ACK in the codebook at the determined location.

[0115]

[0115] A further aspect is directed to a UE, where the PDCCH further comprises a DCI including a Scell suspension indicator, and further comprises means for determining, using a Frequency Domain Resource Allocation (FDRA) field in the DCI, that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data.

[0116]

[0116] A further aspect is directed to a UE, where the means for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data further comprises means for determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0.

[0117]

[0117] A further aspect is directed to a UE, where the PDCCH is associated with a Scell suspension indicator and the means for determining that the PDCCH is not configured to schedule data further comprises means for configuring resource allocation type 0 and resource allocation type 1, enabling resource allocation type 0, and determining that at least one bit in the bits in the FDRA is set to 0 and one bit in the FDRA is set to 1.

[0118]

[0118] A further aspect is directed to a UE, where the PDCCH is associated with a Scell suspension indicator and the means for determining that the PDCCH is not configured to schedule data further comprises means for enabling resource allocation type 1 and determining that all bits in the FDRA are set to 1.

[0119]

[0119] A further aspect is directed to a UE, where the PDCCH is associated with a Scell suspension indicator and the means for determining that the PDCCH is not configured to schedule data further comprises means for enabling resource allocation type 1 and determining that at least one bit in the bits in the FDRA is set to 1 and one bit in the FDRA is set to 0.

[0120]

[0120] A further aspect is directed to a UE, where the Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH and further comprises means for modifying the behavior of the UE using the modulation and coding scheme field.

[0121]

[0121] A further aspect is directed to a UE, where the Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH and further comprises means for modifying the behavior of the UE using the new data indicator.

[0122]

[0122] A further aspect is directed to a UE, where the Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH, and further includes means for modifying the behavior of the UE using the redundancy version indicator.

[0123]

[0123] A further aspect is directed to a UE, where the Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and further includes means for modifying the behavior of the UE using the HARQ process number indicator.

[0124]

[0124] A further aspect is directed to a UE, where the Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and further includes means for modifying the behavior of the UE using the antenna port indicator.

[0125]

[0125] The UE according to claim 101, wherein the Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, and further includes means for modifying the behavior of the UE using the DMRS sequence initialization indicator.

[0126]

[0126] A further aspect is directed to a UE, where the UE further includes means for determining an application delay associated with the Scell suspension indicator, and means for changing the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay.

[0127]

[0127] A further aspect is directed to a UE, where the UE further includes means for determining that the application delay is a time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part.

[0128]

[0128] A further aspect is directed to a UE, where the application delay is the same whether the PDCCH schedules data or does not schedule data.

[0129]

[0129] A further aspect is directed to a UE, where the PDCCH further comprises a DCI including a Scell suspension indicator and a sounding reference signal (SRS) request field, and further comprises means for transmitting an SRS instead of HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0130]

[0130] A further aspect is directed to a UE, where the PDCCH includes a transmit power command (TPC) indicator, and further comprises means for adjusting the transmit power of a scheduled physical uplink control channel (PUCCH) using the TPC indicator, and means for transmitting the PUCCH using the adjusted transmit power.

[0131]

[0131] A further aspect is directed to a UE, where the PDCCH further comprises a DL DCI including a TPC indicator.

[0132]

[0132] A further aspect is directed to a UE, where the TPC indicator adjusts the transmit power of the PUCCH for a serving cell according to the Scell suspension indicator.

[0133]

[0133] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and at least one DAI indicator, and further comprises means for determining the location of HARQ-ACK bits in a codebook using at least one DAI field, and herein, transmitting HARQ-ACK further comprises means for transmitting HARQ-ACK in the codebook at the determined location.

[0134]

[0134] A further aspect is directed to a UE, where the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between receiving a UL grant in the DL indicated by a time domain resource allocation (TDRA) indicator and UL data transmission.

[0135]

[0135] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and means for receiving a second PDCCH including a DL DCI together with a PUCCH resource indicator, and means for determining that a slot for HARQ-ACK associated with the PDCCH including the UL DCI is a slot for a second HARD-ACK associated with the second PDCCH including the DL DCI, and further comprises means for transmitting HARQ-ACK in a resource indicated by the PUCCH resource indicator in the DL DCI and using the slot.

[0136]

[0136] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator, and where the means for transmitting HARQ-ACK further comprises means for transmitting HARQ-ACK in a resource indicated by at least one field in the UL DCI.

[0137]

[0137] A further aspect is directed to a UE, where the PDCCH further comprises a DL or UL DCI including a Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, and further comprises means for determining a location of bits of HARQ-ACK in a semi-static codebook using the SLIV information, and where the means for transmitting HARQ-ACK further comprises means for transmitting HARQ-ACK in the semi-static codebook at the determined location.

[0138]

[0138] A further aspect is directed to a UE, where the PDCCH further comprises a UL DCI including a Scell suspension indicator and a channel state information (CSI) request field, and further comprises means for transmitting CSI instead of HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE.

[0139]

[0139] Other aspects, features, and embodiments will become apparent to those skilled in the art upon consideration of the following description of specific exemplary embodiments in conjunction with the accompanying figures. Although features may be discussed with respect to some of the following embodiments and figures, all embodiments can include one or more of the advantageous features discussed herein. In other words, one or more embodiments may be discussed as having certain advantageous features, but one or more of such features may also be used in accordance with various embodiments discussed herein. Similarly, although exemplary embodiments may be discussed below as device embodiments, system embodiments, or method embodiments, it should be understood that such exemplary embodiments can be implemented in various devices, systems, and methods.

Brief Description of the Drawings

[0140]

Figure 1

[0140] A diagram illustrating a wireless communication network according to some aspects of the present disclosure.

Figure 2

[0141] A block diagram illustrating discontinuous reception (DRX) according to some aspects of the present disclosure.

Figure 3

[0142] A flowchart for communicating a physical downlink control channel (PDCCH) between a base station and a user equipment according to some aspects of the present disclosure.

Figure 4A

[0143] A block diagram for configuring slots for HARQ-ACK using downlink control information according to some aspects of the present disclosure.

Figure 4B

Figure 4C

Figure 5

[0144] Block diagram showing a configuration for allocating resources according to some aspects of the present disclosure.

Figure 6

[0145] Block diagram of an exemplary user equipment (UE) according to some aspects of the present disclosure.

Figure 7

[0146] Block diagram of an exemplary base station (BS) according to some aspects of the present disclosure.

Figure 8

[0147] Flow diagram of a method for communicating a serving cell suspension indication field according to some aspects of the present disclosure.

Figure 9

[0148] Flow diagram of a method for adjusting transmission power on a user equipment according to some aspects of the present disclosure.

Figure 10

[0149] Flow diagram of a method for changing the suspended state of a user equipment according to some aspects of the present disclosure.

Best Mode for Carrying Out the Invention

[0141]

[0150] The embodiments for carrying out the invention described below with reference to the accompanying drawings are intended as descriptions of various configurations and are not intended to represent only the configurations in which the concepts described herein can be practiced. The embodiments for carrying out the invention include specific details for providing a complete understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some examples, well-known structures and components are shown in the form of block diagrams so as not to obscure such concepts.

[0142]

[0151] The present disclosure generally relates to a wireless communication system, also referred to as a wireless communication network. In various embodiments, the techniques and apparatus can be used for wireless communication networks such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single carrier FDMA (SC-FDMA) networks, LTE networks, global systems for mobile communications (GSM (registered trademark)) networks, fifth generation (5G) or new radio (NR) networks, as well as other communication networks. The terms "network" and "system" as described herein can be used interchangeably.

[0143]

[0152] An OFDMA network can implement wireless technologies such as evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11, IEEE 802.16, IEEE 802.20, and flash-OFDM. UTRA, E-UTRA, and GSM are part of the Universal Mobile Telecommunications System (UMTS). In particular, Long Term Evolution (LTE) is a release of UMTS that uses E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents provided by a group called the "3rd Generation Partnership Project" (3GPP (registered trademark)), and cdma2000 is described in documents from a group called the "3rd Generation Partnership Project 2" (3GPP2). These various wireless technologies and standards are known or developed. For example, the 3rd Generation Partnership Project (3GPP) is a collaboration among groups of the telecommunications society aimed at defining globally applicable 3rd generation (3G) mobile phone specifications. 3GPP Long Term Evolution (LTE) is a 3GPP project aimed at improving UMTS mobile phone specifications. 3GPP can define specifications for next-generation mobile networks, mobile systems, and mobile devices. The present disclosure relates to the development of wireless technologies from LTE, 4G, 5G, NR, and beyond, involving shared access to the wireless spectrum between networks using a new and different set of wireless access technologies or wireless air interfaces.

[0144]

[0153] In particular, a 5G network contemplates diverse deployments, diverse spectrums, and diverse services and devices that can be implemented using an OFDM-based integrated air interface. To achieve these goals, in addition to the development of new wireless technologies for 5G NR networks, further extensions of LTE and LTE-A are considered. 5G NR is (1) ultra-high density (e.g., about 1 million nodes / km 2) coverage of large-scale objects to the Internet of Things (IoT) with ultra-low complexity (e.g., about dozens of bits per second), ultra-low energy (e.g., battery life of about 10 years or more), and deep coverage with the ability to reach difficult locations, (2) strong security to protect highly confidential personal information, financial information, or confidential information, ultra-high reliability (e.g., about 99.9999% reliability), ultra-low latency (e.g., about 1 ms), and mission-critical control with or without users with a wide range of mobility, (3) extremely high capacity (e.g., about 10 Tbps / km 2 ) along with extended mobile broadband including extremely high data rates (e.g., multi-Gbps rates, user experience rates of 100 Mbps or more), and deep awareness for advanced discovery and optimization, and is scalable to provide.

[0145]

[0154] 5G NR has a common flexible framework with scalable numerology and transmission time intervals (TTIs) to efficiently multiplex services and features with a dynamic low-latency time-division duplexing (TDD) / frequency-division duplexing (FDD) design and can be implemented to use an optimized OFDM-based waveform with advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust millimeter-wave (mmWave) transmission, advanced channel coding, and device-centric mobility. The scalability of numerology in 5G NR with subcarrier spacing scaling can efficiently handle various services across diverse spectrums and diverse deployments. For example, in various outdoor and macro coverage deployments of FDD / TDD implementations below 3 GHz, the subcarrier spacing can occur at 15 kHz over bandwidths (BW) such as 5, 10, 20 MHz, etc. In various other outdoor and small cell coverage deployments of TDD above 3 GHz, the subcarrier spacing can occur at 30 kHz over 80 / 100 MHz BW. In various other indoor broadband implementations using TDD on the unlicensed portion of the 5 GHz band, the subcarrier spacing can occur at 60 kHz over 160 MHz BW. Finally, in various deployments transmitting with mmWave components in 28 GHz TDD, the subcarrier spacing can occur at 120 kHz over 500 MHz BW.

[0146]

[0155] The scalable numerology of 5G NR facilitates scalable TTIs for diverse latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs to enable transmissions to start on symbol boundaries. 5G NR also contemplates a self-contained integrated subframe design with UL / downlink scheduling information, data, and acknowledgments in the same subframe. Self-contained integrated subframes support communication in adaptive UL / downlinks that can be flexibly configured per cell to switch dynamically between UL and downlink to meet unlicensed or contention-based shared spectrum and current traffic needs.

[0147]

[0156] Various other aspects and features of the present disclosure are further described below. It will be apparent that the teachings herein can be implemented in many diverse forms and that the specific structures, functions, or both disclosed herein are merely representative and not limiting. Based on the teachings herein, those skilled in the art should understand that the aspects disclosed herein can be implemented independently of other aspects and that two or more of these aspects can be combined in various ways. For example, an apparatus can be implemented using any number of the aspects described herein, or a method can be practiced. Further, such an apparatus can be implemented or such a method can be practiced using, in addition to or instead of one or more of the aspects described herein, other structures, functions, or structures and functions. For example, a method can be implemented as part of a system, device, apparatus, and / or as instructions stored on a computer-readable medium for execution on a processor or computer. Further, one aspect can comprise at least one element of one claim.

[0148]

[0157] FIG. 1 shows a wireless communication network 100 according to some aspects of the present disclosure. Network 100 can be a 5G network. Network 100 includes several base stations (BSs) 105 (individually labeled 105a, 105b, 105c, 105d, 105e, and 105f) and other network entities. BS 105 can be a station that communicates with UE 115 and may also be referred to as an evolved Node B (eNB), a next-generation eNB (gNB), an access point, etc. Each BS 105 can provide communication coverage to a specific geographic area. In 3GPP, the term "cell" may refer to this specific geographic coverage area of the BS 105 and / or the BS subsystem that serves the coverage area, depending on the context in which the term is used.

[0149]

[0158] BS105 can provide communication coverage to macro cells, or small cells such as pico cells or femto cells, and / or other types of cells. Macro cells generally cover a relatively large geographical area (e.g., several kilometers in radius) and can enable unrestricted access by UEs subscribed to the network provider's service. Small cells such as pico cells generally cover a relatively small geographical area and can enable unrestricted access by UEs subscribed to the network provider's service. Also, small cells such as femto cells generally cover a relatively small geographical area (e.g., a home) and can enable restricted access in addition to unrestricted access by UEs associated with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs for users within the home, etc.). The BS for a macro cell may sometimes be called a macro BS. The BS for a small cell may sometimes be called a small cell BS, pico BS, femto BS, or home BS. In the example shown in FIG. 1, BS105d and 105e can be normal macro BSs, while BS105a - 105c can be macro BSs capable of one of 3D MIMO, Full Dimension (FD) MIMO, or massive MIMO. BS105a - 105c can utilize their higher - dimensional MIMO capabilities to employ 3D beamforming in both elevation and azimuth beamforming to increase coverage and capacity. BS105f can be a small cell BS that can be a home node or a portable access point. BS105 can support one or more (e.g., two, three, four, etc.) cells.

[0150]

[0159] Network 100 can support synchronous operation or asynchronous operation. In the case of synchronous operation, BSs can have similar frame timings, and transmissions from different BSs can be approximately time - aligned. In the case of asynchronous operation, BSs can have different frame timings, and transmissions from different BSs may not be time - aligned.

[0151]

[0160] UEs 115 are distributed throughout the wireless network 100, and each UE 115 can be fixed or mobile. UEs 115 may also be referred to as terminals, mobile stations, subscriber units, stations, etc. UEs 115 can be cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, tablet computers, laptop computers, cordless phones, entertainment devices, vehicles, vehicle components, wireless modules, industrial devices, medical / health devices, wireless local loop (WLL) stations, etc. In one aspect, UE 115 can be a device that includes a Universal Integrated Circuit Card (UICC). In another aspect, the UE can be a device that does not include a UICC. In some aspects, UEs 115 that do not include a UICC may also be referred to as Internet of Things (IoT) devices or Internet of Everything (IoE) devices. UEs 115a - 115d are examples of mobile smartphone - type devices that access the network 100. UEs 115 can also be machines specially configured for connected communication, including machine - type communication (MTC), enhanced MTC (eMTC), narrow - band IoT (NB - IoT), etc. UEs 115e - 115h are examples of various machines configured for communication that access the network 100. UEs 115i - 115k are examples of vehicles equipped with wireless communication devices configured for communication that access the network 100. UEs 115 can potentially communicate with any type of BS, whether it is a macro BS, a small cell, etc. In FIG. 1, a lightning bolt (e.g., a communication link) indicates a wireless transmission between a UE 115 and a serving BS 105, which is the BS designated to serve the UE 115 on the downlink (DL) and / or uplink (UL), a desired transmission between BSs 105, a backhaul transmission between BSs, or a sidelink transmission between UEs 115.

[0152]

[0161] During operation, BS105a - 105c may serve UE115a and 115b using 3D beamforming and cooperative spatial techniques such as coordinated multipoint (CoMP) or multi - connectivity. Macro BS105d may perform backhaul communication with BS105a - 105c as well as with small cell BS105f. Macro BS105d may also be subscribed to and transmit multicast services received by UE115c and 115d. Such multicast services may include mobile television or streamed video, or may include other services for providing community information such as weather emergencies or alerts such as amber alerts or gray alerts.

[0153]

[0162] BS105 may also communicate with the core network. The core network may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. At least some of the BS105 (which may be an example of a gNB or access node controller (ANC)) may interface with the core network through a backhaul link (e.g., NG - C, NG - U, etc.) and may perform radio configuration and scheduling for communication with UE115. In various examples, BS105 may communicate directly or indirectly with each other (e.g., through the core network) via a backhaul link (e.g., X1, X2, etc.) which may be a wired or wireless communication link.

[0154]

[0163] Network 100 can also support mission-critical communications using ultra-high reliability and redundant links for mission-critical devices such as UE115e which can be a drone. The redundant communication links with UE115e can include links from macro BSs 105d and 105e, as well as links from small cell BS 105f. Other machine type devices such as UE115f (e.g., thermometer), UE115g (e.g., smart meter), and UE115h (e.g., wearable device) can communicate directly with BSs such as small cell BS 105f and macro BS 105e through Network 100, or communicate in a multi-step size configuration by communicating with another user device that relays its information to the network, such as UE115f communicating temperature measurement information to smart meter UE115g which then reports it to the network through small cell BS 105f. Network 100 can also provide additional network efficiency through dynamic low latency TDD / FDD communications such as V2V, V2X, C-V2X communications between UE115i, 115j, or 115k and other UEs 115, and / or vehicle-to-infrastructure (V2I) communications between UE115i, 115j, or 115k and BS105.

[0155]

[0164] In some implementations, Network 100 utilizes an OFDM-based waveform for communication. An OFDM-based system can divide the system BW into a plurality (K) of orthogonal subcarriers, also commonly referred to as subcarriers, tones, bins, etc. Each subcarrier can be modulated with data. In some cases, the subcarrier spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system BW. The system BW can also be partitioned into sub-bands. In other cases, the subcarrier spacing and / or the duration of the TTI can be scalable.

[0156]

[0165] In some aspects, BS105 can allocate or schedule transmission resources (e.g., in the form of time-frequency resource blocks) for downlink (DL) and uplink (UL) transmissions in network 100. DL refers to the transmission direction from BS105 to UE115, while UL refers to the transmission direction from UE115 to BS105. The communication can be in the form of radio frames. The radio frames can be divided into a plurality, e.g., about 10, subframes or slots. Each slot can be further divided into minislots. In FDD mode, simultaneous UL and DL transmissions can be performed in different frequency bands. For example, each subframe can include a UL subframe in the UL frequency band and a DL subframe in the DL frequency band. In TDD mode, UL and DL transmissions are performed in different time periods using the same frequency band. For example, a subset of subframes (e.g., DL subframes) in a radio frame can be used for DL transmission, and another subset of subframes (e.g., UL subframes) in the radio frame can be used for UL transmission.

[0157]

[0166] The DL subframe and the UL subframe can be further divided into several regions. For example, each DL or UL subframe can have predefined regions for the transmission of reference signals, control information, and data. The reference signal is a predetermined signal that facilitates communication between the BS105 and the UE115. For example, the reference signal can have a specific pilot pattern or structure, where the pilot tones can spread over the operating BW or frequency band and are respectively arranged at predefined times and predefined frequencies. For example, the BS105 can transmit a cell-specific reference signal (CRS) and / or a channel state information reference signal (CSI-RS) to enable the UE115 to estimate the DL channel. Similarly, the UE115 can transmit a sounding reference signal (SRS) to enable the BS105 to estimate the UL channel. The control information can include resource allocation and protocol control. The data can include protocol data and / or operation data. In some embodiments, the BS105 and the UE115 can communicate using a stand-alone subframe. The stand-alone subframe can include a portion for DL communication and a portion for UL communication. The stand-alone subframe can be DL-centric or UL-centric. The DL-centric subframe can include a longer duration for DL communication than for UL communication. The UL-centric subframe can include a longer duration for UL communication than for DL communication.

[0158]

[0167] In some aspects, network 100 can be an NR network deployed on an authorized spectrum. BS105 can transmit synchronization signals (e.g., including a primary synchronization signal (PSS) and a secondary synchronization signal (SSS)) in network 100 to facilitate synchronization. BS105 can broadcast system information related to network 100 (e.g., including a master information block (MIB), remaining system information (RMSI), and other system information (OSI)) to facilitate initial network access. In some cases, BS105 can broadcast PSS, SSS, and / or MIB in the form of a synchronization signal block (SSB) on a physical broadcast channel (PBCH), and can broadcast RMSI and / or OSI on a physical downlink shared channel (PDSCH).

[0159]

[0168] In some aspects, UE115 attempting to access network 100 can perform initial cell search by detecting the PSS from BS105. The PSS can enable period timing synchronization and can indicate a physical layer identification value. UE115 can then receive the SSS. The SSS can enable radio frame synchronization and can provide a cell identification information value that can be combined with a physical layer identification information value for identifying the cell. The PSS and the SSS can be located at the center portion of the carrier or any suitable frequency within the carrier.

[0160]

[0169] After receiving the PSS and SSS, the UE 115 may receive the MIB. The MIB may include system information for initial network access and scheduling information for the RMSI and / or OSI. After decoding the MIB, the UE 115 may receive the RMSI and / or OSI. The RMSI and / or OSI may include control resource sets (CORESETs) for random access channel (RACH) procedures, paging, physical downlink control channel (PDCCH) monitoring, physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), power control, and sounding reference signal (SRS) related radio resource control (RRC) information.

[0161]

[0170] After obtaining the MIB, RMSI, and / or OSI, the UE 115 may perform a random access procedure to establish a connection with the BS 105. In some examples, the random access procedure may be a 4-step random access procedure. For example, the UE 115 may transmit a random access preamble, and the BS 105 may respond with a random access response. The random access response (RAR) may include a detected random access preamble identifier (ID) corresponding to the random access preamble, timing advance (TA) information, uplink grant, temporary cell radio network temporary identifier (C-RNTI), and / or a backoff indicator. Upon receiving the random access response, the UE 115 may transmit a connection request to the BS 105, and the BS 105 may respond with a connection response. The connection response may indicate contention resolution. In some examples, the random access preamble, RAR, connection request, and connection response may be referred to as message 1 (MSG1), message 2 (MSG2), message 3 (MSG3), and message 4 (MSG4), respectively. In some examples, the random access procedure may be a 2-step random access procedure, where the UE 115 may transmit a random access preamble and a connection request in a single transmission, and the BS 105 may respond by transmitting a random access response and a connection response in a single transmission.

[0162]

[0171] After the connection is established, UE 115 and BS 105 can enter the normal operation phase, where operation data can be exchanged. For example, BS 105 can schedule UE 115 for UL and / or DL communication. BS 105 can send UL and / or DL scheduling grants to UE 115 via PDCCH. The scheduling grant can be sent in the form of DL control information (DCI). BS 105 can send a DL communication signal (e.g., carrying data) to UE 115 via PDSCH according to the DL scheduling grant. UE 115 can send a UL communication signal to BS 105 via PUSCH and / or PUCCH according to the UL scheduling grant.

[0163]

[0172] As discussed above, BS 105 can provide communication coverage for a macro cell or a small cell. In an NR network, UE 115 can also be configured to communicate with a plurality of cells called serving cells, which can be one or more macro cells or small cells provided by BS 105. In some aspects, a serving cell can include one primary cell (Pcell) and a plurality of secondary cells (Scell). The Pcell may operate on a primary frequency and is the cell where UE 115 performs the initial connection establishment procedure or starts the reconnection establishment procedure, where UE 115 receives RRC. The Scell can be configured when the RRC connection is established and may operate on a secondary frequency and can be used to provide additional radio resources for UE 115. UE 115 can communicate with a plurality of Scell.

[0164]

[0173] To conserve resources, in some aspects, UE 115 may be configured for one or more operating states (e.g., a first state, a second state, a non-idle-like state, and / or an idle-like state). In non-idle-like state behavior, UE 115 may fully utilize the resources of the Scell. For example, UE 115 may monitor the PDCCH, receive the PDSCH, receive the CSI, measure and report the frequency. UE 115 may also operate at full power and thus fully utilize the resources available in the Scell. In idle-like behavior, UE 115 may conserve power by reducing activities related to the Scell. For example, during idle-like behavior, UE 115 may, in some aspects, not monitor the PDCCH, may not receive PDSCH or PUSCH transmissions, may eliminate CSI reporting, may reduce CSI measurements (e.g., for at least 100 ms), and may reduce frequency reporting operations. Further, when UE 115 communicates with multiple Scells, UE 115 may be in a non-idle-like state with some Scells and in an idle-like state with other Scells.

[0165]

[0174] In some aspects, network 100 may switch one or more Scells configured for UE 115 between a non-idle-like state and an idle-like state, for example, using BS 105. The switch may include transmitting a Scell suspension indication field (or simply a suspension indication field). When multiple Scells are configured for UE 115, the suspension indication field may be applied to individual Scells or to a group of Scells. In some cases, the suspension indication field may be included in the PDCCH. The following aspects are discussed from the perspective of the PDCCH, but the aspects are also applicable to other control channels.

[0166]

[0175] In some aspects, UE115 may be configured to perform discontinuous reception (DRX). In DRX, UE115 may sleep to conserve power and periodically wake up to monitor the PDCCH for potential DL reception or to monitor control information for UL transmission. FIG. 2 is a block diagram showing DRX reception according to some aspects. As shown in FIG. 2, the DRX cycle 202 includes a sleep portion 204 and a wake-up portion 206 (also referred to as an on-duration portion 206). During the on-duration portion 206, UE115 may monitor the PDCCH 208 that may schedule the data transmission of UE115. In some cases, UE115 may receive the PDCCH 208 during the on-duration portion 206. In this case, UE115 may extend the on-duration portion 206 by waking up and entering the active time portion 210. During the active time portion 210, UE115 may receive the data 212.

[0167]

[0176] In some cases, during the sleep portion 204 of the DRX cycle 202, UE115 may receive a wake-up signal (WUS). The WUS may enter the on-duration portion 206 and indicate to UE115 that it should wake up to monitor the PDCCH 208. The WUS may also include a PDCCH and may be the PDCCH WUS 214. UE115 may monitor the PDCCH WUS 214 typically during the sleep portion 204 outside the active time portion 210. When UE115 receives the PDCCH WUS 214, UE115 may wake up and enter the on-duration portion 206 after a configurable time period that may be the WUS offset 216. When UE115 completes the active time portion 210 or when UE115 completes the on-duration portion 206 without receiving the PDCCH 208, UE115 may re-enter the sleep portion 204 of the DRX cycle 202.

[0168]

[0177] In some aspects, UE115 may not be configured to perform DRX cycle 202. In these cases, UE115 may not enter the power saving mode and may always monitor PDCCH208.

[0169]

[0178] In some aspects, PDCCH208 or PDCCH WUS214 may include a Scell suspension indication field. When UE115 is configured with DRX cycle 202, the Scell suspension indication field may be included in PDCCH WUS214 received by UE115 during the sleep portion 204 or in PDCCH208 received by UE115 during the active time portion 210. When UE115 is not configured with DRX cycle 202, UE115 may receive PDCCH208 at any time.

[0170]

[0179] In some aspects, the Scell suspension indication field is a suspension indication field that may indicate a suspended-like state or a non-suspended-like state of the Scell. When UE115 groups multiple Scells into one or more groups, the Scell suspension indication field may indicate a suspended-like state or a non-suspended-like state for each group of Scells.

[0171]

[0180] In some aspects, UE115 that switches between a suspended-like state and a non-suspended-like state may be implemented by a bandwidth part (BWP) that switches between a suspended BWP and a normal BWP. The normal BPW enables UE115 to fully utilize the Scell or a group of Scells, while the suspended BWP enables UE115 to make limited use of the Scell or a group of Scells.

[0172]

[0181] As discussed above, a PDCCH such as PDCCH 208 may include DCI. The DCI may be in various formats. BS 105 may use DCI format 1_1 to schedule DL transmission and may use DCI format 0_1 to schedule UL transmission. The DCI format may be extended and / or modified to include a Scell suspension indication field. In this way, PDCCH 208 may include one or more fields that may change the suspension state of one or more Scells. In addition to the suspension field, PDCCH 208 may also include information for scheduling data.

[0173]

[0182] In some aspects, after UE 115 receives a PDCCH 208 that includes a Scell suspension indication field, UE 115 may generate a hybrid ARQ positive acknowledgment, or HARQ-ACK. Generally, BS 105 may configure UE 115 using a HARQ codebook for HARQ ACK / NACK feedback. For example, UE 115 may indicate HARQ ACK / NACK feedback for a plurality of PDSCH transport blocks to the BS. UE 115 may select a codeword from a HARQ codebook corresponding to the HARQ ACK / NACK feedback and indicate the codeword to BS 105. The HARQ codebook may depend on various parameters (e.g., the size or number of codewords). In some cases, BS 105 may configure the HARQ codebook semi-statically, where the HARQ codebook configuration parameters may not change for a certain duration. In some other cases, BS 105 may configure the HARQ codebook dynamically, where the HARQ codebook configuration parameters may be updated dynamically. Further, the size of the semi-static codebook is fixed based on the RRC configuration of the codebook. Thus, the size of the semi-static codebook takes into account all possible downlink transmission opportunities within the configured time window. The size of the dynamic codebook changes based on the actual downlink transmissions that have been acknowledged by UE 115 associated with the codebook.

[0174]

[0183] Figure 3 is a flowchart 300 for communicating a physical downlink control channel (PDCCH) between a base station and a user equipment according to some aspects of the present disclosure. As shown in Figure 3, at step 302, BS105 transmits PDCCH 208 to UE115. PDCCH 208 includes a Scell suspension indication field in the DCI. At step 304, UE115 receives and processes the Scell suspension indication field included in the DCI. For example, UE115 may change its suspension state based on the Scell suspension indication field. For example, UE115 may enter a suspension-like state for one or more Scells (or vice versa). At step 306, in response to receiving PDCCH 208 with the Scell suspension indication field in the DCI, UE115 transmits a HARQ-ACK to BS105. Since UE115 transmits a HARQ-ACK to BS105, BS105 and UE115 may have the same understanding regarding which Scells associated with UE115 are in a suspension-like state and which Scells are in a non-suspension-like state. Further, UE115 that communicates a HARQ-ACK after receiving PDCCH 208 avoids a scenario where BS105 transmits PDCCH 208 with a Scell suspension indication field and UE115 fails to detect it, thereby causing an inconsistency between BS105 and UE115 regarding the suspension-like and non-suspension-like states of the Scells associated with UE115. When BS105 receives a HARQ-ACK from UE115 in response to transmitting PDCCH 208, BS105 receives confirmation that UE115 has received PDCCH 208 and changed its suspension-like state as indicated by the Scell suspension indication field.

[0175]

[0184] In some aspects, the HARQ-ACK information in HARQ-ACK may be transmitted as a single bit. For example, if PDCCH 208 indicates the suspension of a Scell but does not schedule data based on a DL scheduling DCI (DL DCI) format, UE 115 may generate a 1-bit ACK when UE 115 detects PDCCH 208. In another example, if PDCCH 208 indicates the suspension of a Scell but does not schedule data based on a UL scheduling DCI (UL DCI) format, UE 115 may generate a 1-bit ACK when UE 115 detects PDCCH 208.

[0176]

[0185] In some aspects, network 100 may support multiplexing of HARQ-ACK information from multiple DL receptions. For example, different DL transmissions (from the same serving cell or across different serving cells) may be multiplexed into a multi-bit message. The bits may be multiplexed into a semi-static codebook or a dynamic codebook using RRC selection. The semi-static codebook may include bits reserved for all potential DL transmissions by BS 105 in a slot associated with a codebook for a specific transmission, such as PDCCH 208 with a Scell suspension indication field. The dynamic codebook may include bits corresponding to the actual DL transmission by BS 105, such as the bits corresponding to PDCCH 208 with a Scell suspension indication field when the Scell suspension indication field is actually included in PDCCH 208. Thus, when UE 115 receives PDCCH 208 with a Scell suspension indication field, UE 115 may generate a HARQ-ACK that supports a semi-static codebook for reporting to BS 105 that UE 115 has received PDCCH 208. Alternatively, UE 115 may generate a HARQ-ACK that supports a dynamic-static codebook for reporting to BS 105 that UE 115 has received PDCCH 208.

[0177]

[0186] In some aspects, when a Scell suspension indication field is included in the DL DCI, BS105 may also configure a slot that UE115 can use to send a HARQ-ACK back to BS105. In one example, the slot for HARQ-ACK may include HARQ feedback timing information, such as a delay in a slot between the slot in which UE115 receives PDCCH208 and the slot in which UE115 sends the corresponding HARQ-ACK, in one of the fields in the DL DCI. The slot may support HARQ-ACKs that include single-bit, semi-static codebooks, or dynamic codebooks. FIGS. 4A-4C are block diagrams 400A-400C for configuring a slot for HARQ-ACK according to some aspects of the present disclosure. FIG. 4A shows a plurality of slots 402. Slot 402_1 may carry a PDCCH208 that includes a Scell suspension indication field and a PDSCH-to-HARQ feedback timing indicator field in the DL DCI. The PDSCH-to-HARQ feedback timing indicator field may include a value K1 that stores the number of slots 402 between the slot 402_1 that includes PDCCH208 and the slot 402_2 that includes HARQ-ACK. Thus, K1 corresponds to the delay between UE115 receiving PDCCH208 via the DL DCI and UE115 responding to PDCCH208 with a HARQ-ACK.

[0178]

[0187] As shown in FIG. 4B, PDCCH 208 includes a time domain resource allocation field for UL scheduling DCI. Different from DL scheduling DCI, UL scheduling DCI may not have a PDSCH-to-HARQ feedback timing indicator field. In this case, the UL DCI may store, in the time domain resource allocation (TDRA) field, the number of slots corresponding to the delay between when UE 115 receives PDCCH 208 and when UE 115 transmits a HARQ-ACK. When UE 115 receives PDCCH 208, UE 115 may use the value in the time domain resource allocation (TDRA) field in the UL DCI to determine the number of slots corresponding to the delay. The value in the TDRA field may be referred to as K2. UE 115 may use the value of K2 to identify the slots that UE 115 may use to send a HARQ-ACK to BS 105. As discussed above, the HARQ-ACK may be a single-bit HARQ-ACK or may be included in a semi-static codebook or a dynamic codebook.

[0179]

[0188] In some aspects, UE 115 may determine the PUCCH resources that may be used to transmit a HARQ-ACK. When UE 115 receives a DL DCI in PDCCH 208, UE 115 may use the PUCCH resource indicator field to determine the PUCCH resources that UE 115 may use for HARQ-ACK transmission. In some cases, when the PDCCH 208 received by UE 115 is the last one that should be acknowledged positively in the slot in which the corresponding HARQ-ACK codebook is transmitted, UE 115 may use the PUCCH resource indicator field to determine the resources for HARQ-ACK transmission. When UE 115 may use the PUCCH resource indicator field, UE 115 may store the PUCCH resource indicator field from the DL DCI.

[0180]

[0189] However, when UE115 receives UL DCI in PDCCH208, the UL DCI may not have a PUCCH resource indicator field. In this case, UE115 transmits HARQ-ACK for another DL reception (e.g., PDCCH208 with DL DCI) in the same slot, and UE115 can transmit HARQ-ACK for PDCCH208 with UL DCI only if the DL DCI includes a valid PUCCH resource indicator field. FIG. 4C shows a block diagram of communicating HARQ-ACK according to some aspects of the present disclosure. As shown in FIG. 4C, UE115 receives PDCCH208 in UL DCI in slot 402_1 together with a Scell suspension indication field. Since the UL DCI does not have a PUCCH resource indicator field, UE115 may wait to receive a DL reception including PDCCH208 with a Scell suspension indication field in the DL DCI, or the PDCCH schedules a unicast PDSCH and UE115 receives this in slot 402_2. As discussed above, the DL DCI of PDCCH208 received by UE115 in slot 402_2 may include a PUCCH resource indicator field. In this case, UE115 can determine whether the HARQ-ACK related to the PUCCH from the DL reception is in the same slot as the HARQ-ACK related to the PUCCH from the UL reception. If so, UE115 can transmit HARQ-ACK for the PUCCH related to the DL reception and the UL reception in the same slot being used and using the PUCCH resource indicator field. As shown in FIG. 4C, slot 402_3 is a slot that can be used to transmit HARQ-ACK related to the PUCCH from the DL reception and the UL reception.

[0181]

[0190] In an alternative aspect, the UL DCI in PDCCH208 may reuse another field or a combination of fields to carry a PUCCH resource indicator for HARQ-ACK transmission related to PDCCH208.

[0182]

[0191] As discussed above, UE115 may transmit HARQ-ACK using a semi-static or dynamic codebook. UE115 may determine the location of HARQ-ACK bits in the semi-static or dynamic codebook. In one aspect, when UE115 receives a PDCCH including DL DCI, UE115 may use the start and length indicator value (SLIV) information to determine the location of the HARQ-ACK bits of PDCCH208 in the semi-static codebook. The SLIV information may be included in the TDRA field in the DL DCI. UE115 may also resolve the duplication among multiple PDCCHs and sort the multiple PDCCHs based on their corresponding SLIVs in the same slot. UE115 may store the DL DCI to obtain the SLIV information from the DL DCI.

[0183]

[0192] Similarly, when UE115 receives a PDCCH208 including UL DCI, UE115 may use the SLIV information to determine the location of the HARQ-ACK bits of the PDCCH in the semi-static codebook. The SLIV information may be included in the TDRA field in the UL DCI. UE115 may also resolve the duplication among multiple PDCCHs and sort the multiple PDCCHs based on their corresponding SLIVs in the same slot. UE115 may store the UL DCI to obtain the SLIV information from the UL DCI.

[0184]

[0193] In another aspect, when the UE 115 receives the PDCCH 208 including the DL DCI, the UE 115 may use the downlink allocation index (DAI) field in the DL DCI to determine the location of the HARQ-ACK bits of the PDCCH 208 in the dynamic codebook. The rule for determining the location of the HARQ-ACK bits may be the same as the rule for determining the location of the HARQ-ACK bits in the dynamic codebook for the unicast PDSCH. The UE 115 may store the DL DCI to obtain the DAI field from the UL DCI.

[0185]

[0194] Similarly, when the UE 115 receives the PDCCH 208 including the UL DCI, the UE 115 may use the downlink allocation index (DAI) field in the UL DCI, or a combination of DAI fields if two or more DAI fields are provided by the UL DCI, to determine the location of the HARQ-ACK bits of the PDCCH 208 in the dynamic codebook. The rule for determining the location of the HARQ-ACK bits may be the same as the rule for determining the location of the HARQ-ACK bits in the dynamic codebook for the unicast PDSCH. The UE 115 may store the UL DCI to obtain the DAI field from the UL DCI.

[0186]

[0195] In some aspects, PDCCH 208 may include a Scell suspension indication field and a configuration for scheduling data. FIG. 5 is a block diagram showing a configuration for scheduling data according to some aspects of the present disclosure. In FIG. 5, an exemplary configuration for scheduling data may be a resource allocation type 0 configuration shown as an RBG bitmap 502 and a resource allocation type 1 configuration shown as an RB bitmap 504. In the type 0 configuration, the RBG bitmap 502 represents a bitmap of a plurality of resource block groups (RBGs) 506. Each RBG 506 may carry data. Further, the RBG bitmap 502 may set bit = 1 for the RBGs 506 configured to carry data and set bit = 0 for the RBGs 506 not configured to carry data. In the type 1 configuration, the RB bitmap 504 represents bits associated with a plurality of resource blocks (RBs) 508. Consecutive RBs 508 may be configured to carry data. Each bit in the RB bitmap 504 corresponds to an RB 508, and the RBs 508 that may carry data may be specified using a start RB 510 and an RB length 512. Thus, by setting the start RB 510 in the selected RB 508 and counting the RB length 512 of the RB 508 from the selected RB 508, the RB bitmap 504 may indicate the RBs 508 that may carry data.

[0187]

[0196] In some aspects, PDCCH 208 may schedule data with type 0 and type 1 resource allocations by including the RBG bitmap 502 and / or the RB bitmap 504. The UE 115 in a suspended-like state does not schedule data, but since PDCCH 208 may include both a Scell suspension indication field and a data scheduling bitmap, the UE 115 may be configured to distinguish whether PDCCH 208 includes the Scell suspension indication field or is configured to schedule data.

[0188]

[0197] In some aspects, PDCCH 208 may include a Scell suspension indication field and an FDRA field. The Scell suspension indication field and the FDRA field may be included in DL DCI or UL DCI.

[0189]

[0198] In some aspects, UE 115 may determine that PDCCH 208 can use the Scell suspension indication field and cannot schedule data under the following conditions. Under the first condition, when all bits of the FDRA field are set to 0 and the resource allocation is of type 0, PDCCH 208 can use the Scell suspension indication field.

[0190]

[0199] Under the second condition, PDCCH 208 can use the Scell suspension indication field when

[0191] the FDRA with the most significant bit (MSB) is set to 0, the other bits in the FDRA are set to 0, and PDCCH 208 includes resource allocation configurations that are of type 0 and type 1.

[0192]

[0200] Under the third condition, when all bits of the FDRA field are set to 1 and the resource allocation configuration is of type 1, PDCCH 208 can use the Scell suspension indication field.

[0193]

[0201] Under the fourth condition, PDCCH 208 can use the Scell suspension indication field when

[0194] the FDRA with the most significant bit (MSB) is set to 1, the other bits in the FDRA are set to 1, and PDCCH 208 includes resource allocation configurations that are of type 0 and type 1.

[0195]

[0202] In yet another aspect, to indicate that the PDCCH 208 includes a Scell suspension indication field, the DL DCI or the UL DCI may include a sounding reference signal (SRS) request field. When the UE 115 receives the PDCCH 208, the UE 115 may transmit an SRS in response to the SRS request field. Since the UE 115 transmits a response to the PDCCH 208, the UE 115 may use SRS transmission as an affirmative response indicating that the UE 115 has received the PDCCH 208 including the Scell suspension indication field. Further, since the UE 115 transmits an affirmative response, the UE 115 may transmit an SRS instead of HARQ-ACK. The UE 115 may store the SRS request field from the DCI to determine whether the DCI includes a Scell suspension indication field and whether the UE 115 may use SRS for an affirmative response to the PDCCH 208.

[0196]

[0203] In yet another aspect, to indicate that the PDCCH 208 includes a Scell suspension indication field, the UL DCI may include a channel state information (CSI) request field. When the UE 115 receives the PDCCH 208 together with the UL DCI, the UE 115 may transmit CSI in response to the CSI request field. Since the UE 115 transmits a response to the PDCCH 208, the UE 115 may use CSI transmission as an affirmative response indicating that the UE 115 has received the PDCCH 208 including the Scell suspension indication field. Further, since the UE 115 transmits an affirmative response, the UE 115 may transmit CSI instead of HARQ-ACK. The UE 115 may store the CSI request field from the UL DCI to determine whether the UE 115 may use CSI for an affirmative response to the PDCCH 208.

[0197]

[0204] In some aspects, PDCCH 208 may include a serving cell inactivity indication using a combination of one or more fields. For example, the DL DCI or UL DCI for PDCCH 208 may include a modulation and coding scheme field, a new data indicator field, a redundancy version field, a HARQ process number field, an antenna port field, or a DMRS sequence initialization field. A combination of one or more of the above fields may be used to indicate an inactivity indication in PDCCH 208.

[0198]

[0205] In some aspects of the present disclosure, UE 115 may receive PDCCH 208 including DL DCI together with a transmit power command (TPC) field. The TPC field may control the transmit power of the scheduled PUCCH. For example, UE 115 may use the TPC field to adjust the transmit power and transmit the PUCCH using the adjusted transmit power. In some cases, when the DL DCI includes a Scell inactivity indication field indicating that UE 115 may enter an inactivity-like state, UE 115 may be adjusted to transmit the PUCCH using less power as indicated by the TPC field. Similarly, when the DL DCI includes a Scell inactivity indication field indicating that UE 115 may enter a non-inactivity-like state, UE 115 may transmit the PUCCH using more power as indicated by the TPC field.

[0199]

[0206] In some aspects of the present disclosure, UE 115 may experience an application delay associated with the inactivity indication. The application delay may be the time at which the inactivity indication takes effect after UE 115 receives PDCCH 208. In some aspects, the time of the application delay may be the same regardless of whether PDCCH 208 also schedules data. The application delay may be configured within UE 115 and may apply in cases where UE 115 receives PDCCH 208 during an active time portion 210, or in cases where DRX cycle 202 is not configured in network 100. The application delay may also be set as the amount of time UE 115 may have to switch between an inactive-like BWP and a normal BWP.

[0200]

[0207] FIG. 6 is a block diagram of an exemplary UE 600 according to some aspects of the present disclosure. UE 600 may be the UE 115 discussed above in FIG. 1. As shown, UE 600 may include a processor 602, a memory 604, an inactivity module 608, a power module 609, a transceiver 610 including a modem subsystem 612 and a radio frequency (RF) unit 614, and one or more antennas 616. These elements may communicate directly or indirectly with each other, for example, via one or more buses.

[0201]

[0208] Processor 602 may include a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein. Processor 602 may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration.

[0202]

[0209] Memory 604 may include cache memory (e.g., the cache memory of processor 602), random access memory (RAM), magnetoresistive RAM (MRAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM (registered trademark)), flash memory, solid-state memory devices, hard disk drives, other forms of volatile and non-volatile memory, or combinations of different types of memory. In one aspect, memory 604 includes a non-transitory computer-readable medium. Memory 604 may store or record instructions 606. Instructions 606, when executed by processor 602, may include instructions that cause processor 602 to perform the operations described herein with respect to UE 115 in connection with aspects of the present disclosure, such as the aspects of FIGS. 2-5 and FIGS. 8-10. Instructions 606 may also be referred to as program code. The program code may be for causing a wireless communication device to perform these operations, for example, by controlling or instructing the wireless communication device, such as one or more processors (such as processor 602), to do so. The terms "instructions" and "code" should be interpreted broadly to include any type of computer-readable statement. For example, the terms "instructions" and "code" may refer to one or more programs, routines, subroutines, functions, procedures, etc. "Instructions" and "code" may include a single computer-readable statement or many computer-readable statements.

[0203]

[0210] The sleep module 608 can be implemented via hardware, software, or a combination thereof. For example, the sleep module 608 can be implemented as instructions 606 stored in the processor, circuitry, and / or memory 604 and executed by the processor 602. In some cases, the sleep module 608 can be incorporated within the modem subsystem 612. For example, the sleep module 608 can be implemented by a combination of a software component (e.g., executed by a DSP or a general-purpose processor) and a hardware component (e.g., logic gates and circuitry) within the modem subsystem 612.

[0204]

[0211] The sleep module 608 can be used for various aspects of the present disclosure, such as the aspects of FIGS. 2-5 and FIGS. 8-10. The sleep module 608 can detect whether the PDCCH 208 includes a sleep indication field, such as a serving cell sleep indication field. The sleep module 608 can then cause the transceiver 610 to transmit a HARQ-ACK in response to detecting the secondary cell sleep indication field. In some aspects, the sleep module 608 can identify a serving cell sleep indication field or other field that may include a secondary cell sleep indication in the DCI of the PDCCH 208. The sleep module 608 can also generate a HARQ-ACK, such as a single-bit HARQ-ACK, a semi-static codebook or a dynamic codebook including the HARQ-ACK, and the location of the HARQ-ACK in the semi-static codebook or the dynamic codebook. The sleep module 608 can also determine slots and resources for transmitting the HARQ-ACK from the UE 600, 115 to the BS 105 on the PUCCH. In some aspects, the sleep module 608 can also determine when the PDCCH 208 is associated with a sleep indication and whether it is not configured to schedule data for uplink or downlink transmission. The sleep module 608 can also determine the time period that the UE 115 has for changing from a sleep-like state to a non-sleep-like state, or vice versa.

[0205]

[0212] The power module 609 can be implemented via hardware, software, or a combination thereof. For example, the power module 609 can be implemented as instructions 606 stored in the processor, circuitry, and / or memory 604 and executed by the processor 602. In some cases, the power module 609 can be incorporated within the modem subsystem 612. For example, the power module 609 can be implemented by a combination of a software component (e.g., executed by a DSP or a general-purpose processor) and a hardware component (e.g., logic gates and circuitry) within the modem subsystem 612.

[0206]

[0213] The power module 609 can be used for various aspects of the present disclosure, such as the aspects of FIGS. 2-5 and FIGS. 8-10. The power module can adjust the transmission power of the UE 115, 600 and transmit the PUCCH using the adjusted transmission power.

[0207]

[0214] As shown in the figure, the transceiver 610 may include a modem subsystem 612 and an RF unit 614. The transceiver 610 may be configured to communicate bidirectionally with other devices such as the BS 105. The modem subsystem 612 may be configured to modulate and / or encode data from the memory 604 according to a modulation and coding scheme (MCS), such as a low density parity check (LDPC) coding scheme, a turbo coding scheme, a convolutional coding scheme, a digital beamforming scheme, etc. The RF unit 614 may be configured to process (e.g., perform analog-to-digital conversion or digital-to-analog conversion, etc.) the modulated / coded data from the modem subsystem 612 (e.g., PUSCH data) during outbound transmission, or the modulated / coded data of a transmission originated from another source such as the UE 115 or the BS 105. The RF unit 614 may be further configured to perform analog beamforming together with digital beamforming. Although shown as being integrated together in the transceiver 610, the modem subsystem 612 and the RF unit 614 may be separate devices that are coupled to each other in the UE 115, 600 to enable the UE 115, 600 to communicate with other devices.

[0208]

[0215] The RF unit 614 may provide the modulated and / or processed data, such as data packets (or, more generally, data messages that may include one or more data packets and other information), to the antenna 616 for transmission to one or more other devices. The antenna 616 may further receive data messages transmitted from other devices. The antenna 616 may provide the received data messages for processing and / or demodulation in the transceiver 610. The antenna 616 may include multiple antennas of the same or different designs to maintain multiple transmission links. The RF unit 614 may configure the antenna 616.

[0209]

[0216] In one aspect, the UE 600 can include a plurality of transceivers 610 implementing different RATs (e.g., NR and LTE). In one aspect, the UE 600 can include a single transceiver 610 implementing a plurality of RATs (e.g., NR and LTE). In one aspect, the transceiver 610 can include various components, where different combinations of components can implement different RATs.

[0210]

[0217] FIG. 7 is a block diagram of an exemplary BS 700 according to some aspects of the present disclosure. The BS 700 can be the BS 105 in the network 100 as discussed above in FIG. 1. As shown, the BS 700 can include a processor 702, a memory 704, a sleep module 708, a power module 709, a transceiver 710 including a modem subsystem 712 and an RF unit 714, and one or more antennas 716. These elements can communicate directly or indirectly with each other, for example, via one or more buses.

[0211]

[0218] The processor 702 can have various characteristics as a particular type of processor. For example, these can include a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein. The processor 702 can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0212]

[0219] Memory 704 may include cache memory (e.g., the cache memory of processor 702), RAM, MRAM, ROM, PROM, EPROM, EEPROM, flash memory, solid state memory devices, one or more hard disk drives, memory cell-based arrays, other forms of volatile and non-volatile memory, or combinations of different types of memory. In some embodiments, memory 704 may include a non-transitory computer-readable medium. Memory 704 may store instructions 706. Instructions 706, when executed by processor 702, may include instructions that cause processor 702 to perform the operations described herein, such as the embodiments of FIGS. 2-5 and FIGS. 8-10. Instructions 706 may sometimes be referred to as code, and as discussed above in connection with FIG. 6, code may be broadly construed to include any type of computer-readable statement.

[0213]

[0220] Sleep module 708 may be used for various embodiments of the present disclosure, such as the embodiments of FIGS. 2-5 and FIGS. 8-10. Sleep module 708 may configure PDCCH 208 to include a sleep indication field, such as a secondary cell sleep indication field. Sleep module 708 may also determine a slot and resource for carrying HARQ-ACK to BS 700, 105 and include a field specifying the slot and resource in PDCCH 208, or in the DL or UL DCI included in PDCCH 208. In some embodiments, sleep module 708 may schedule a data allocation and a serving cell sleep indication field in PDCCH 208 such that UE 115 can determine whether PDCCH 208 can be used to indicate the sleep of the serving cell or whether PDCCH 208 can be used to schedule data. In some embodiments, sleep module 908 may also configure PDCCH 208 to change UE 115 from a sleep-like state to a non-sleep-like state, or vice versa.

[0214]

[0221] The power module 709 can be implemented via hardware, software, or a combination thereof. For example, the power module 709 can be implemented as instructions 706 stored in a processor, circuitry, and / or memory 704 and executed by a processor 702. In some instances, the power module 709 can be incorporated within a modem subsystem 712. For example, the power module 709 can be implemented by a combination of software components (e.g., executed by a DSP or a general-purpose processor) and hardware components (e.g., logic gates and circuitry) within the modem subsystem 712.

[0215]

[0222] The power module 709 can be used for various aspects of the present disclosure, such as the aspects of FIGS. 2-5 and FIGS. 8-10. The power module 709 can configure the PDCCH 208 using a field that causes the UE 115, 600 to adjust the transmission power of PUCCH transmissions.

[0216]

[0223] As shown in the illustration, the transceiver 710 may include a modem subsystem 712 and an RF unit 714. The transceiver 710 may be configured to communicate bidirectionally with other devices such as the UE 115 and / or 600 and / or other core network elements. The modem subsystem 712 may be configured to modulate and / or encode data according to an MCS, such as an LDPC coding scheme, a turbo coding scheme, a convolutional coding scheme, a digital beamforming scheme, etc. The RF unit 714 may be configured to process (e.g., perform analog-to-digital conversion or digital-to-analog conversion, etc.) the modulated / encoded data from the modem subsystem 712 (during outbound transmission) or the modulated / encoded data of a transmission originated from another source such as the UE 115 and / or the UE 600. The RF unit 714 may be further configured to perform analog beamforming together with digital beamforming. Although shown as being integrated together in the transceiver 710, the modem subsystem 712 and / or the RF unit 714 may be separate devices coupled to each other in the BS 105 to enable the BS 105 to communicate with other devices.

[0217]

[0224] The RF unit 714 may provide the modulated and / or processed data, such as data packets (or, more generally, data messages that may include one or more data packets and other information), to the antenna 716 for transmission to one or more other devices. This may include, for example, the transmission of information for completing a connection to the network and communication with the camped UE 115 or 600, according to some aspects of the present disclosure. The antenna 716 may further receive data messages transmitted from other devices and provide the received data messages for processing and / or demodulation in the transceiver 710. The antenna 716 may include multiple antennas of the same or different designs to maintain multiple transmission links.

[0218]

[0225] In one aspect, the BS700 can include a plurality of transceivers 710 implementing different RATs (e.g., NR and LTE). In one aspect, the BS700 can include a single transceiver 710 implementing a plurality of RATs (e.g., NR and LTE). In one aspect, the transceiver 710 can include various components, where different combinations of components can implement different RATs.

[0219]

[0226] FIG. 8 is a flowchart of a communication method 800 for detecting a serving cell dormancy field in a PDCCH according to some aspects of the present disclosure. The steps of method 800 can be performed by a computing device (e.g., a processor, processing circuitry, and / or other suitable components) of a wireless communication device, or by other suitable means for performing the steps. For example, a wireless communication device such as UE115 or 600 can utilize one or more components such as a processor 602, a memory 604, a dormancy module 608, a transceiver 610, a modem subsystem 612, and one or more antennas 616 to perform the steps of method 800. As illustrated, method 800 includes some enumerated steps, but aspects of method 800 can include additional steps before, after, and in between the enumerated steps. In some aspects, one or more of the enumerated steps can be omitted or performed in a different order.

[0220]

[0227] In step 802, method 800 includes detecting PDCCH 208 or PDCCH WUS 214 at UE 115 or 600, together with a Scell suspension indication field. As discussed above, the Scell suspension indication field may be included in the DCI. As discussed above, the Scell suspension indication field may be applied to an individual Scell or multiple Scells, and indicates a suspended-like state or a non-suspended-like state for the individual Scell or multiple Scells. The suspended-like state may correspond to a suspended BWP, and the non-suspended-like state may correspond to a normal BWP.

[0221]

[0228] In step 804, method 800 includes transmitting a HARQ-ACK to BS 105 in response to detecting PDCCH 208 together with a Scell suspension indication field. The HARQ-ACK may indicate to BS 105 which Scells associated with UE 115 are in a suspended-like state or a non-suspended-like state. This gives BS 105 and UE 115 the same understanding regarding the suspended-like state and non-suspended-like state of the Scells associated with UE 115. In some aspects, the HARQ-ACK may include a 1-bit ACK indicating that the UE detected the PDCCH. The HARQ-ACK may also include a semi-static or dynamic codebook including this 1 bit.

[0222]

[0229] Figure 9 is a flow diagram of a communication method 900 for adjusting the power of a UE according to some aspects of the present disclosure. The steps of method 900 may be performed by a computing device (e.g., a processor, processing circuitry, and / or other suitable components) of a wireless communication device, or by other suitable means for performing the steps. For example, a wireless communication device such as UE115 or 600 may utilize one or more components such as processor 602, memory 604, sleep module 608, transceiver 610, modem subsystem 612, and one or more antennas 616 to perform the steps of method 900. As illustrated, method 900 includes several enumerated steps, although aspects of method 900 may include additional steps before, after, and in between the enumerated steps. In some aspects, one or more of the enumerated steps may be omitted or performed in a different order.

[0223]

[0230] In step 902, method 900 includes receiving PDCCH 208 at UE115 or 600, along with a TPC field. The TPC field may control the transmission power of the scheduled PUCCH. As discussed above, the TPC field may be included in the DCI and may be used to adjust the transmission power that UE115 or 600 uses to transmit the PUCCH.

[0224]

[0231] In step 904, method 900 includes adjusting the transmission power of UE115 or 600 for transmitting the PUCCH using the TPC field. For example, if the TPC field indicates that the transmission power should be adjusted to a lower power, UE115 may enter a sleep-like state using less power. On the other hand, if the TPC field indicates that the transmission power should be adjusted to a higher power, UE115 may enter a non-sleep-like state using more power.

[0225]

[0232] In step 906, method 900 includes transmitting a PUCCH using the transmission power adjusted in step 904. For example, when the power is adjusted in step 904, UE 115 may transmit the PUCCH using a higher power indicating that UE 115 is in a non-idle-like state or a lower power indicating that UE 115 is in an idle-like state.

[0226]

[0233] FIG. 10 is a flowchart of a communication method 1000 for changing the idle state of a user equipment according to some aspects of the present disclosure. The steps of method 1000 may be performed by a computing device (e.g., a processor, a processing circuit, and / or other suitable components) of a wireless communication device, or by other suitable means for performing the steps. For example, a wireless communication device such as UE 115 or 600 may utilize one or more components such as a processor 602, a memory 604, an idle module 608, a transceiver 610, a modem subsystem 612, and one or more antennas 616 to perform the steps of method 1000. As illustrated, method 1000 includes several recited steps, but aspects of method 1000 may include additional steps before, after, and in between the recited steps. In some aspects, one or more of the recited steps may be omitted or performed in a different order.

[0227]

[0234] In step 1002, method 1000 includes receiving, at UE 115 or 600, a PDCCH 208 together with an indication of the idle state of a secondary cell communication. The indication of the idle state may be a field indicating an idle-like state or a non-idle-like state of the secondary communication cell. The indication of the idle state may be included in the DCI.

[0228]

[0235] In step 1004, method 1000 includes determining an application delay associated with the suspension indication. The application delay can be the time period during which the secondary communication cell switches between a suspended-like state and a non-suspended-like state or vice versa. The application delay can apply to cases where UE 115 receives PDCCH 208 during the active time portion 210, or to cases where the DRX cycle 202 is not configured in the network 100. The application delay can also be the amount of time that UE 115 may have to switch between a suspended-like BWP and a normal BWP.

[0229]

[0236] In step 1006, method 1000 includes changing UE 115 or 600 from a suspended-like state to a non-suspended-like state or vice versa based on the suspension indication and within the time period associated with the application delay.

[0230]

[0237] Information and signals 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 may be referred to throughout the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0231]

[0238] The various exemplary blocks and modules described in connection with the disclosure of this specification can be implemented or performed using a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gates or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may 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 cooperating with a DSP core, or any other such configuration).

[0232]

[0239] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted across a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of the present disclosure and within the scope of the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. The features implementing the functions may also be physically located at various positions, including being distributed such that portions of the functions are implemented at different physical locations. Also, as used herein, including in the claims, the "or" in a list of items (e.g., a list of items followed by phrases such as "at least one of" or "one or more of") indicates an inclusive list, and thus, for example, the list [at least one of A, B, or C] means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0233]

[0240] As will now be understood by those skilled in the art, many modifications, substitutions, and variations can be made in and to the materials, apparatus, configurations, and methods of use of the devices of the present disclosure, and to those, without departing from the spirit and scope thereof, in accordance with the particular applications currently contemplated. In light of this, since the specific embodiments illustrated and described herein are only examples of some of the present disclosure, the scope of the present disclosure should not be limited to the scope of those specific embodiments, but rather should fully correspond to the scope of the following appended claims and their functional equivalents. The invention described in the claims of the present application at the time of filing is appended below. [C1] A user equipment (UE), a processor configured to detect a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein, in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, a transceiver configured to transmit a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH and comprising the UE. [C2] The UE according to C1, wherein the PDCCH further comprises downlink control information (DCI) including the Scell suspension indicator. [C3] The UE according to C1, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH. [C4] The processor is further configured to generate a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator, and incorporate the codebook into the HARQ-ACK and perform the operations of the UE according to C1. [C5] The UE according to C4, wherein the codebook is a dynamic codebook or a semi-static codebook. [C6] The PDCCH further comprises DCI including the Scell suspension indicator and feedback timing information, and the processor is further configured to determine the number of slots using the feedback timing information in the DCI, and delay the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected and perform the operations of the UE according to C1. The UE according to C1. [C7] The UE according to C6, wherein the DCI is downlink scheduling (DL) DCI and the feedback timing information is a physical downlink shared channel (PDSCH) to HARQ feedback timing indicator. [C8] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, For transmitting the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in a resource indicated by the PUCCH resource indicator, The UE according to C1. [C9] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a downlink allocation index (DAI) field, The processor is further configured to use the DAI field to determine the location of the bits of the HARQ-ACK in the codebook, For transmitting the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in the codebook at the determined location, The UE according to C1. [C10] The PDCCH further comprises a DCI including the Scell suspension indicator, The processor is further configured to use the frequency domain resource allocation (FDRA) field in the DCI to determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, the UE according to C1. [C11] For determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, the processor is further configured to determine that resource allocation type 0 is enabled and all bits in the FDRA are set to 0, the UE according to C10. [C12] For determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, the processor is further configured to determine that resource allocation type 0 and resource allocation type 1 are configured, resource allocation type 0 is enabled, at least one bit among the bits in the FDRA is set to 0, and one bit in the FDRA is set to 1, the UE according to C10. [C13] The UE according to C10, wherein the PDCCH is associated with the Scell suspension indicator, and the processor is further configured to determine that resource allocation type 1 is enabled and all bits in the FDRA are set to 1 in order to determine that the PDCCH is not configured to schedule the data. [C14] The UE according to C10, wherein the PDCCH is associated with the Scell suspension indicator, and the processor is further configured to determine that resource allocation type 1 is enabled, at least one bit among the bits in the FDRA is set to 1, and one bit in the FDRA is set to 0 in order to determine that the PDCCH is not configured to schedule the data. [C15] The Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH, and the processor is further configured to modify the behavior of the UE using the modulation and coding scheme field. The UE according to C1. [C16] The Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH, and the processor is further configured to modify the behavior of the UE using the new data indicator. The UE according to C1. [C17] The Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH, and the processor is further configured to modify the behavior of the UE using the redundancy version indicator. The UE according to C1. [C18] The Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and the processor is further configured to modify the behavior of the UE using the HARQ process number indicator. The UE according to C1. [C19] The Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and the processor is further configured to modify the behavior of the UE using the antenna port indicator. The UE according to C1. [C20] The Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, The processor is further configured to use the DMRS sequence initialization indicator to modify the behavior of the UE, The UE according to C1. [C21] The processor, Determine an application delay associated with the Scell suspension indicator, Modify the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay The UE according to C1, which is further configured to perform. [C22] The processor, The application delay is further configured to be determined to be the time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part The UE according to C21. [C23] The application delay is the same whether the PDCCH schedules data or does not schedule the data, the UE according to C21. [C24] The PDCCH further includes a DCI including the Scell suspension indicator and a sounding reference signal (SRS) request field, The transceiver is further configured to transmit the SRS instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE, the UE according to C1. [C25] The PDCCH includes a transmit power command (TPC) indicator, The processor is further configured to use the TPC indicator to adjust the transmit power of the scheduled physical uplink control channel (PUCCH), The transceiver is further configured to transmit the PUCCH using the adjusted transmit power, The UE according to C1. [C26] The PDCCH according to C25 further includes a DL DCI including the TPC indicator. [C27] The TPC indicator adjusts the transmit power of the PUCCH for the serving cell according to the Scell suspension indicator, the UE according to C25. [C28] The PDCCH further includes a UL DCI including the Scell suspension indicator and at least one DAI indicator, The processor is further configured to determine the location of the bits of the HARQ-ACK in the codebook using the at least one DAI field, and the transceiver is further configured to transmit the HARQ-ACK in the codebook at the determined location for transmitting the HARQ-ACK, The UE according to C1. [C29] The UE according to C6, wherein the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay in a second number of slots between receiving a UL grant in the DL indicated by a time domain resource allocation (TDRA) indicator and UL data transmission. [C30] The PDCCH further comprises a UL DCI including the Scell suspension indicator, The transceiver, receives a second PDCCH including a DL DCI together with a PUCCH resource indicator, and transmits the HARQ-ACK in the resource indicated by the PUCCH resource indicator in the DL DCI and using a slot, and is further configured to perform, The processor, determines that the slot for the HARQ-ACK associated with the PDCCH including the UL DCI is the slot for a second HARD-ACK associated with the second PDCCH including the DL DCI, and is further configured to do so. The UE according to C1. [C31] The PDCCH further comprises a UL DCI including the Scell suspension indicator, and the transceiver is further configured to transmit the HARQ-ACK in the resource indicated by at least one field in the UL DCI for transmitting the HARQ-ACK, The UE according to C1. [C32] The PDCCH further comprises a DL or UL DCI including the Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, and the processor is further configured to determine the location of the bits of the HARQ-ACK in the semi-static codebook using the SLIV information, To transmit the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in the semi-static codebook at the determined location. The UE according to C1. [C33] The PDCCH further comprises a UL DCI including the Scell suspension indicator and a channel state information (CSI) request field. The transceiver is further configured to transmit CSI instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE. The UE according to C1. [C34] A method comprising: In a user equipment (UE), detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state. In response to the processor detecting the PDCCH, transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK). A method comprising the above. [C35] The method according to C34, wherein the PDCCH further comprises a downlink control information (DCI) including the Scell suspension indicator. [C36] The method according to C34, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH. [C37] Further comprising: generating a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator; incorporating the codebook into the HARQ-ACK. The method according to C34. [C38] The method according to C37, wherein the codebook is a dynamic codebook or a semi-static codebook. [C39] The PDCCH further comprises a DCI including the Scell suspension indicator and feedback timing information. Determining the number of slots using the feedback timing information in the DCI. Delaying the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH has been detected. Further comprising: The method according to C34. [C40] The method according to C39, wherein the DCI is a downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator. [C41] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator. Transmitting the HARQ-ACK further comprises transmitting the HARQ-ACK in a resource indicated by the PUCCH resource indicator. The method according to C34. [C42] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a downlink allocation index (DAI) field. Further comprising determining a location of bits of the HARQ-ACK in a codebook using the DAI field. Transmitting the HARQ-ACK further comprises transmitting the HARQ-ACK in the codebook at the determined location. The method according to C34. [C43] The PDCCH further comprises a DCI including the Scell suspension indicator. Further comprising determining, using a frequency domain resource allocation (FDRA) field in the DCI, that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data. The method according to C34. [C44] The method according to C43, wherein determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further comprises determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0. [C45] The method according to C43, wherein determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further comprises determining that resource allocation type 0 and resource allocation type 1 are configured, resource allocation type 0 is enabled, at least one bit in the bits of the FDRA is set to 0, and one bit in the FDRA is set to 1. [C46] The method according to C43, wherein determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further comprises determining that resource allocation type 1 is enabled and all bits in the FDRA are set to 1. [C47] The method according to C43, wherein determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further comprises determining that resource allocation type 1 is enabled, at least one bit among the bits in the FDRA is set to 1, and one bit in the FDRA is set to 0. [C48] The Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH. The method further comprises modifying the behavior of the UE using the modulation and coding scheme field. The method according to C35. [C49] The Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH. The method further comprises modifying the behavior of the UE using the new data indicator. The method according to C35. [C50] The Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH. The method further comprises modifying the behavior of the UE using the redundancy version indicator. The method according to C35. [C51] The Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH. The method further comprises modifying the behavior of the UE using the HARQ process number indicator. The method according to C35. [C52] The Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH. The method further comprises modifying the behavior of the UE using the antenna port indicator. The method according to C35. [C53] The Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH. Further comprising modifying the behavior of the UE using the DMRS sequence initialization indicator The method according to C35 [C54] Determining an application delay associated with the Scell suspension indicator Changing the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay The method according to C35, further comprising [C55] Determining that the application delay is the time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part The method according to C54, further comprising [C56] The method according to C54, wherein the application delay is the same whether the PDCCH schedules data or the PDCCH does not schedule the data [C57] The PDCCH further comprises a DCI including the Scell suspension indicator and a sounding reference signal (SRS) request field Further comprising transmitting the SRS instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE The method according to C35 [C58] The PDCCH includes a transmit power command (TPC) indicator Adjusting the transmit power of the scheduled physical uplink control channel (PUCCH) using the TPC indicator Transmitting the PUCCH using the adjusted transmit power Further comprising The method according to C35 [C59] The method according to C58, wherein the PDCCH further comprises a DL DCI including the TPC indicator [C60] The method according to C58, wherein the TPC indicator adjusts the transmit power of the PUCCH for the serving cell according to the Scell suspension indicator [C61] The PDCCH further comprises a UL DCI including the Scell suspension indicator and at least one DAI indicator Further comprising determining the location of the bits of the HARQ-ACK in the codebook using the at least one DAI field Transmitting the HARQ-ACK further comprises transmitting the HARQ-ACK in the codebook at the determined location The method according to C35 [C62] The method according to C39, wherein the DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between receiving a UL grant in DL indicated by a time domain resource allocation (TDRA) indicator and UL data transmission. [C63] The PDCCH further comprises a UL DCI including the Scell suspension indicator. Receiving a second PDCCH including a DL DCI together with a PUCCH resource indicator. Determining that a slot for the HARQ-ACK associated with the PDCCH including the UL DCI is the slot for a second HARD-ACK associated with the second PDCCH including the DL DCI. Transmitting the HARQ-ACK within a resource indicated by the PUCCH resource indicator in the DL DCI and using the slot. Further comprising. The method according to C35. [C64] The PDCCH further comprises a UL DCI including the Scell suspension indicator. The method according to C35, wherein transmitting the HARQ-ACK further comprises transmitting the HARQ-ACK within a resource indicated by at least one field in the UL DCI. [C65] The PDCCH further comprises a DL or UL DCI including the Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator. Further comprising determining a location of bits of the HARQ-ACK in a semi-static codebook using the SLIV information. Transmitting the HARQ-ACK further comprises transmitting the HARQ-ACK in the semi-static codebook at the determined location. The method according to C35. [C66] The PDCCH further comprises a UL DCI including the Scell suspension indicator and a channel state information (CSI) request field. Further comprising transmitting CSI instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE. The method according to C35. [C67] A non-transitory computer-readable medium recording program code, wherein the program code is In a user equipment (UE), code for detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, code for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH A non-transitory computer-readable medium comprising the same. [C68] The non-transitory computer-readable medium according to C67, wherein the PDCCH further comprises downlink control information (DCI) including the Scell suspension indicator. [C69] The non-transitory computer-readable medium according to C67, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH. [C70] Code for generating a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator, code for incorporating the codebook into the HARQ-ACK The non-transitory computer-readable medium according to C67, further comprising the same. [C71] The non-transitory computer-readable medium according to C70, wherein the codebook is a dynamic codebook or a semi-static codebook. [C72] The PDCCH further comprises DCI including the Scell suspension indicator and feedback timing information, code for determining the number of slots using the feedback timing information in the DCI, code for delaying the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected The non-transitory computer-readable medium according to C67, further comprising the same. The non-transitory computer-readable medium according to C67. [C73] The non-transitory computer-readable medium according to C72, wherein the DCI is downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator. [C74] The PDCCH further includes a DL DCI including the Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, The code for transmitting the HARQ-ACK further includes a code for transmitting the HARQ-ACK in a resource indicated by the PUCCH resource indicator. The non-transitory computer-readable medium according to C67. [C75] The PDCCH further includes a DL DCI including the Scell suspension indicator and a downlink assignment index (DAI) field, The code further includes a code for determining a location of bits of the HARQ-ACK in a codebook using the DAI field. The code for transmitting the HARQ-ACK further includes a code for transmitting the HARQ-ACK in the codebook at the determined location. The non-transitory computer-readable medium according to C67. [C76] The PDCCH further includes a DCI including the Scell suspension indicator, The code further includes a code for determining, using a frequency domain resource allocation (FDRA) field in the DCI, that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data. The non-transitory computer-readable medium according to C67. [C77] The code for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further includes a code for determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0, the non-transitory computer-readable medium according to C76. [C78] The code for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further includes a code for determining that resource allocation type 0 and resource allocation type 1 are configured, resource allocation type 0 is enabled, at least one bit among bits in the FDRA is set to 0, and one bit in the FDRA is set to 1, the non-transitory computer-readable medium according to C76. [C79] The non-transitory computer-readable medium according to C76, wherein the PDCCH is associated with the Scell suspension indicator, and the code for determining that the PDCCH is not configured to schedule the data further includes code for determining that resource allocation type 1 is enabled and all bits in the FDRA are set to 1. [C80] The non-transitory computer-readable medium according to C76, wherein the PDCCH is associated with the Scell suspension indicator, and the code for determining that the PDCCH is not configured to schedule the data further includes code for determining that resource allocation type 1 is enabled, at least one bit among the bits in the FDRA is set to 1, and one bit in the FDRA is set to 0. [C81] The Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH, and further includes code for modifying the behavior of the UE using the modulation and coding scheme field. The non-transitory computer-readable medium according to C68. [C82] The Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH, and further includes code for modifying the behavior of the UE using the new data indicator. The non-transitory computer-readable medium according to C68. [C83] The Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH, and further includes code for modifying the behavior of the UE using the redundancy version indicator. The non-transitory computer-readable medium according to C68. [C84] The Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH, and further includes code for modifying the behavior of the UE using the HARQ process number indicator. The non-transitory computer-readable medium according to C68. [C85] The Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH, and further includes code for modifying the behavior of the UE using the antenna port indicator. The non-transitory computer-readable medium described in C68. [C86] The Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH, further comprising code for modifying the behavior of the UE using the DMRS sequence initialization indicator, The non-transitory computer-readable medium described in C68. [C87] Code for determining an application delay associated with the Scell suspension indicator, and code for changing the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay The non-transitory computer-readable medium described in C68, further comprising. [C88] Code for determining that the application delay is the time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part The non-transitory computer-readable medium described in C87, further comprising. [C89] The non-transitory computer-readable medium described in C87, wherein the application delay is the same whether the PDCCH schedules data or does not schedule the data. [C90] The PDCCH further comprises a DCI including the Scell suspension indicator and a sounding reference signal (SRS) request field, further comprising code for transmitting the SRS instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE. The non-transitory computer-readable medium described in C68. [C91] The PDCCH includes a transmit power command (TPC) indicator, code for adjusting the transmit power of a scheduled physical uplink control channel (PUCCH) using the TPC indicator, and code for transmitting the PUCCH using the adjusted transmit power The non-transitory computer-readable medium described in C68, further comprising. The non-transitory computer-readable medium described in C68. [C92] The non-transitory computer-readable medium described in C91, wherein the PDCCH further comprises a DL DCI including the TPC indicator. [C93] The non-transitory computer-readable medium described in C91, wherein the TPC indicator adjusts the transmit power of the PUCCH for a serving cell according to the Scell suspension indicator. [C94] The PDCCH further comprises a UL DCI including the Scell suspension indicator and at least one DAI indicator, and further comprises code for determining the location of the bits of the HARQ-ACK in a codebook using the at least one DAI field, and transmitting the HARQ-ACK further comprises code for transmitting the HARQ-ACK in the codebook at the determined location, The non-transitory computer-readable medium according to C68. [C95] The DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay at a second number of slots between receiving a UL grant in the DL indicated by a time domain resource allocation (TDRA) indicator and UL data transmission. The non-transitory computer-readable medium according to C72. [C96] The PDCCH further comprises a UL DCI including the Scell suspension indicator, code for receiving a second PDCCH including a DL DCI together with a PUCCH resource indicator, code for determining that a slot for the HARQ-ACK associated with the PDCCH including the UL DCI is the slot for a second HARD-ACK associated with the second PDCCH including the DL DCI, and code for transmitting the HARQ-ACK in the resource indicated by the PUCCH resource indicator in the DL DCI and using the slot, and further comprises, The non-transitory computer-readable medium according to C68. [C97] The PDCCH further comprises a UL DCI including the Scell suspension indicator, and the code for transmitting the HARQ-ACK further comprises code for transmitting the HARQ-ACK in a resource indicated by at least one field in the UL DCI, The non-transitory computer-readable medium according to C68. [C98] The PDCCH further comprises a DL or UL DCI including the Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator, Further comprising code for determining the location of the bits of the HARQ-ACK in the semi-static codebook using the SLIV information, The code for transmitting the HARQ-ACK further comprises code for transmitting the HARQ-ACK in the semi-static codebook at the determined location, The non-transitory computer-readable medium according to C68. [C99] The PDCCH further comprises a UL DCI including the Scell suspension indicator and a channel state information (CSI) request field, The PDCCH further comprises code for transmitting CSI instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE, The non-transitory computer-readable medium according to C68. [C100] A user equipment (UE), Means for detecting a physical downlink control channel (PDCCH) together with a secondary cell (Scell) suspension indicator, wherein the Scell suspension indicator is configured to switch the UE between a suspended state and a non-suspended state, and wherein in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state, Means for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to the processor detecting the PDCCH A UE comprising. [C101] The UE according to C100, wherein the PDCCH further comprises downlink control information (DCI) including the Scell suspension indicator. [C102] The UE according to C100, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH. [C103] Means for generating a codebook including at least 1 bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator, Means for incorporating the codebook into the HARQ-ACK The UE according to C100, further comprising. [C104] The UE according to C103, wherein the codebook is a dynamic codebook or a semi-static codebook. [C105] The PDCCH further comprises DCI including the Scell suspension indicator and feedback timing information, Means for determining the number of slots using the feedback timing information in the DCI; Means for delaying the transmission of the HARQ-ACK by the number of slots for the slot in which the PDCCH is detected; The UE further comprises; The UE according to C100. [C106] The UE according to C105, wherein the DCI is a downlink scheduling (DL) DCI, and the feedback timing information is a PDSCH-to-HARQ feedback timing indicator. [C107] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a physical uplink control channel (PUCCH) resource indicator, The means for transmitting the HARQ-ACK further comprises means for transmitting the HARQ-ACK in a resource indicated by the PUCCH resource indicator. The UE according to C100. [C108] The PDCCH further comprises a DL DCI including the Scell suspension indicator and a downlink allocation index (DAI) field, The means for determining the location of the bits of the HARQ-ACK in the codebook using the DAI field is further provided, The means for transmitting the HARQ-ACK further comprises means for transmitting the HARQ-ACK in the codebook at the determined location. The UE according to C100. [C109] The PDCCH further comprises a DCI including the Scell suspension indicator, The means for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data using a frequency domain resource allocation (FDRA) field in the DCI is further provided, The UE according to C100. [C110] The means for determining that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data further comprises means for determining that resource allocation type 0 is enabled and all bits in the FDRA are set to 0. The UE according to C109. [C111] The UE according to C109, wherein the PDCCH is associated with the Scell suspension indicator, and the means for determining that the PDCCH is not configured to schedule the data further comprises means for determining that resource allocation type 0 and resource allocation type 1 are configured, resource allocation type 0 is enabled, at least one bit in the bits of the FDRA is set to 0, and one bit in the FDRA is set to 1. [C112] The UE according to C109, wherein the PDCCH is associated with the Scell suspension indicator, and the means for determining that the PDCCH is not configured to schedule the data further comprises means for determining that resource allocation type 1 is enabled and all bits in the FDRA are set to 1. [C113] The UE according to C109, wherein the PDCCH is associated with the Scell suspension indicator, and the means for determining that the PDCCH is not configured to schedule the data further comprises means for determining that resource allocation type 1 is enabled, at least one bit in the bits of the FDRA is set to 1, and one bit in the FDRA is set to 0. [C114] The Scell suspension indicator includes a modulation and coding scheme field in at least one DCI in the PDCCH. The UE further comprises means for modifying the behavior of the UE using the modulation and coding scheme field. The UE according to C101. [C115] The Scell suspension indicator includes a new data indicator in at least one DCI in the PDCCH. The UE further comprises means for modifying the behavior of the UE using the new data indicator. The UE according to C101. [C116] The Scell suspension indicator includes a redundancy version indicator in at least one DCI in the PDCCH. The UE further comprises means for modifying the behavior of the UE using the redundancy version indicator. The UE according to C101. [C117] The Scell suspension indicator includes a HARQ process number indicator in at least one DCI in the PDCCH. Further comprising means for modifying the behavior of the UE using the HARQ process number indicator The UE according to C101 [C118] The Scell suspension indicator includes an antenna port indicator in at least one DCI in the PDCCH Further comprising means for modifying the behavior of the UE using the antenna port indicator The UE according to C101 [C119] The Scell suspension indicator includes a demodulation reference signal (DMRS) sequence initialization indicator in at least one DCI in the PDCCH Further comprising means for modifying the behavior of the UE using the DMRS sequence initialization indicator The UE according to C101 [C120] Means for determining an application delay associated with the Scell suspension indicator, and means for changing the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay The UE according to C101, further comprising [C121] Means for determining that the application delay is the time period during which the UE switches from a dormant bandwidth part to a non-dormant bandwidth part The UE according to C120, further comprising [C122] The UE according to C120, wherein the application delay is the same whether the PDCCH schedules data or does not schedule the data [C123] The PDCCH further comprises a DCI including the Scell suspension indicator and a sounding reference signal (SRS) request field Further comprising means for transmitting the SRS instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE The UE according to C101 [C124] The PDCCH includes a transmit power command (TPC) indicator Means for adjusting the transmit power of the scheduled physical uplink control channel (PUCCH) using the TPC indicator Means for transmitting the PUCCH using the adjusted transmit power Further comprising The UE according to C101 [C125] The UE according to C124, wherein the PDCCH further comprises a DL DCI including the TPC indicator The UE according to C124, wherein the TPC indicator adjusts the transmission power of the PUCCH for the serving cell according to the Scell suspension indicator. [C127] The PDCCH further comprises a UL DCI including the Scell suspension indicator and at least one DAI indicator, further comprising means for determining a location of bits of the HARQ-ACK in a codebook using the at least one DAI field, transmitting the HARQ-ACK further comprises means for transmitting the HARQ-ACK in the codebook at the determined location. The UE according to C101. [C128] The DCI is an uplink scheduling (UP) DCI, and the feedback timing information indicates a delay in a second number of slots between receiving a UL grant and transmitting UL data in a DL indicated by a time domain resource allocation (TDRA) indicator. The UE according to C105. [C129] The PDCCH further comprises a UL DCI including the Scell suspension indicator, means for receiving a second PDCCH including a DL DCI together with a PUCCH resource indicator, means for determining that a slot for the HARQ-ACK associated with the PDCCH including the UL DCI is the slot for a second HARD-ACK associated with the second PDCCH including the DL DCI, means for transmitting the HARQ-ACK in a resource indicated by the PUCCH resource indicator in the DL DCI and using the slot. further comprising The UE according to C101. [C130] The PDCCH further comprises a UL DCI including the Scell suspension indicator, means for transmitting the HARQ-ACK further comprises means for transmitting the HARQ-ACK in a resource indicated by at least one field in the UL DCI. The UE according to C101. [C131] The PDCCH further comprises a DL or UL DCI including the Scell suspension indicator and start and length indicator value (SLIV) information in a time domain resource allocation (TDRA) indicator. further comprising means for determining a location of the bits of the HARQ-ACK in the semi-static codebook using the SLIV information, the means for transmitting the HARQ-ACK further comprising means for transmitting the HARQ-ACK in the semi-static codebook at the determined location, The UE according to C101. [C132] The PDCCH further comprises a UL DCI including the Scell suspension indicator and a channel state information (CSI) request field, the PDCCH further comprising means for transmitting CSI instead of the HARQ-ACK as an affirmative response that the PDCCH has been detected by the UE, The UE according to C101.

Claims

1. A user equipment (UE), comprising: detecting a physical downlink control channel (PDCCH) together with a Secondary Cell (Scell) suspension indicator in a Scell suspension indication field, wherein the Scell suspension indicator is applied to one or more Scells and is configured to switch the UE between a suspended state and a non-suspended state, and wherein in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state; generating a codebook including at least one bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator in response to detecting the PDCCH; and incorporating the codebook into a Hybrid Automatic Repeat reQuest Acknowledgment (HARQ-ACK); a processor configured to perform the above; a transceiver configured to transmit the HARQ-ACK The UE comprising the above.

2. The UE according to claim 1, wherein the PDCCH further comprises downlink control information (DCI) including the Scell suspension indicator.

3. The UE according to claim 1, wherein the HARQ-ACK is a 1-bit ACK indicating that the UE has detected the PDCCH.

4. The PDCCH further comprises DCI including the Scell suspension indicator and feedback timing information for transmitting the HARQ-ACK, and the processor is further configured to determine the number of slots using the feedback timing information in the DCI; and delay the transmission of the HARQ-ACK by the number of slots with respect to the slot in which the PDCCH is detected The UE according to claim 1, further configured as above.

5. The UE according to claim 4, wherein the DCI is downlink scheduling (DL) DCI, and the feedback timing information is a Physical Downlink Shared Channel (PDSCH) to HARQ feedback timing indicator.

6. The PDCCH further comprises DL DCI including the Scell suspension indicator and a Physical Uplink Control Channel (PUCCH) resource indicator. ​ To transmit the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in a resource indicated by the PUCCH resource indicator. The UE according to claim 1. **Claim 7** The PDCCH further comprises a DL DCI including the Scell suspension indicator and a downlink allocation index (DAI) field. The processor is further configured to use the DAI field to determine the location of the bits of the HARQ-ACK in the codebook. To transmit the HARQ-ACK, the transceiver is further configured to transmit the HARQ-ACK in the codebook at the determined location. The UE according to claim 1. **Claim 8** The PDCCH further comprises a DCI including the Scell suspension indicator. The processor is further configured to use a frequency domain resource allocation (FDRA) field in the DCI to determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule data, for the UE according to claim 1. **Claim 9** To determine that the PDCCH is associated with the Scell suspension indicator and is not configured to schedule the data, the processor: Determines that resource allocation type 0 is enabled and all bits in the FDRA field are set to 0, or Determines that resource allocation type 0 and resource allocation type 1 are configured, resource allocation type 0 is enabled, at least one bit in the bits of the FDRA field is set to 0, and one bit in the FDRA field is set to 1, or Determines that resource allocation type 1 is enabled and all bits in the FDRA field are set to 1, or Is further configured to determine that resource allocation type 1 is enabled, at least one bit in the bits of the FDRA field is set to 1, and one bit in the FDRA field is set to 0, for the UE according to claim 8. **Claim 10** The PDCCH further includes a modulation and coding scheme field in at least one DCI in the PDCCH. The processor is further configured to modify the behavior of the UE using the modulation and coding scheme field The UE according to claim 1

11. The PDCCH further includes a new data indicator in at least one DCI in the PDCCH The processor is further configured to modify the behavior of the UE using the new data indicator The UE according to claim 1

12. The processor Determining an application delay associated with the Scell suspension indicator Changing the behavior of the UE based on the Scell suspension indicator during a time period associated with the application delay The UE according to claim 1, further configured to perform

13. The processor Determine that the application delay is the time period during which the UE switches from a suspended bandwidth part to a non-suspended bandwidth part The UE according to claim 12, further configured to

14. A method comprising In a user equipment (UE), detecting a physical downlink control channel (PDCCH) together with a Scell suspension indicator in a secondary cell (Scell) suspension indication field, wherein the Scell suspension indicator is applied to one or more Scells and is configured to switch the UE between a suspended state and a non-suspended state, and wherein in the suspended state, the UE is configured to operate at a reduced power compared to the non-suspended state In response to detecting the PDCCH, generating a codebook including at least one bit indicating that the UE has detected the PDCCH together with the Scell suspension indicator Incorporating the codebook into a hybrid automatic repeat request acknowledgement (HARQ-ACK) Transmitting the HARQ-ACK A method comprising

15. A non-transitory computer-readable medium recording program code, the program code comprising code for executing the method according to claim 14

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