Method, apparatus and system for discontinuous data transmission and reception in wireless network

Abstract

The present disclosure generally relates to a method, device and system for discontinuous data transmission and discontinuous data reception in a wireless network. A method performed by a wireless device is disclosed. The method may include receiving a first message from a network node, the first message including a first connected-state discontinuous reception (DRX) configuration, or an indicator indicating the first connected-state DRX configuration, where the first connected-state DRX configuration is allocated to a first target associated with a first service of the wireless device, or an indicator indicating the first connected-state DRX configuration. The first target comprises one of the following: a data radio bearer (DRB); a logical channel; semi-persistent scheduling (SPS); configuring authorization (CG); or a hybrid automatic repeat request (HARQ) process; and applying the first connected state DRX configuration to the first target.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications, and more particularly to a method, device, and system for discontinuous data transmission and discontinuous data reception in a wireless network. Background Art

[0002] Controlling power consumption and reducing energy costs are critical to developing and deploying wireless communication networks, and energy-saving technologies are key to achieving this goal. With the development of wireless communication technology, more and more services, applications, and various energy-saving mechanisms have emerged, which has increased the complexity of power consumption control. Therefore, it is very important to have the ability to control the power consumption of various network elements (such as base stations and UEs) and still meet performance requirements. Summary of the invention

[0003] The present disclosure relates to a method, device and system for discontinuous data transmission and discontinuous data reception in a wireless network.

[0004] In some embodiments, a method performed by a wireless device is disclosed. The method may include: receiving a first message from a network node, the first message including a first connection state discontinuous reception (DRX) configuration, or an indicator indicating a first connection state DRX configuration, wherein the first connection state DRX configuration is assigned to a first target associated with a first service of the wireless device, the first target including one of: a data radio bearer (DRB); a logical channel; a semi-persistent scheduling (SPS); a configuration grant (CG); or a hybrid automatic repeat request (HARQ) process; and applying the first connection state DRX configuration to the first target.

[0005] In some embodiments, a method performed by a wireless device is disclosed. The method may include: sending an indicator indicating a radio capability of the wireless device to a network node, the radio capability indicating whether the wireless device supports HARQ mode B when a serving cell of the wireless device is a terrestrial network cell, wherein in the HARQ mode B, a HARQ round trip time (RTT) timer and a HARQ retransmission timer are not started; and when the wireless device is in the terrestrial network cell, receiving a HARQ mode indicator from the network node indicating that the wireless device applies the HARQ mode B.

[0006] In some embodiments, a method performed by a wireless device is disclosed. The method may include: receiving a first message from a network node indicating deactivation of a DRX HARQ round trip time timer (drx-HARQ-RTT-Timer), wherein the drx-HARQ-RTT-Timer is applied to a target including one of the following: a data radio bearer (DRB); a logical channel; a semi-persistent scheduling (SPS); a configuration grant (CG); or a hybrid automatic repeat request (HARQ) process.

[0007] In some embodiments, a method performed by a wireless device is disclosed. The method may include: receiving an indicator indicating whether a cell discontinuous operation is activated in a cell via a UE-specific message targeted at the wireless device, wherein the cell discontinuous operation includes at least one of cell discontinuous transmission (DTX) or cell discontinuous reception (DRX); and activating a configuration associated with the cell discontinuous operation in response to the indicator indicating that the cell discontinuous operation is activated in the cell.

[0008] In some embodiments, a method performed by a network node is disclosed. The method may include: sending a first message to a wireless device, the first message including: a first connection state discontinuous reception (DRX) configuration, or an indicator indicating the first connection state DRX configuration, wherein the first connection state DRX configuration is assigned to a first target associated with a first service of the wireless device, the first target including one of the following: a data radio bearer (DRB); a logical channel; a semi-persistent scheduling (SPS); a configuration grant (CG); or a hybrid automatic repeat request (HARQ) process.

[0009] In some embodiments, a method performed by a network node is disclosed. The method may include: receiving an indicator indicating a radio capability of the wireless device from a wireless device, the radio capability indicating whether the wireless device supports HARQ mode B when a serving cell of the wireless device is a terrestrial network cell, wherein in the HARQ mode B, a HARQ round trip time (RTT) timer and a HARQ retransmission timer are not started; and sending a HARQ mode indicator indicating that the wireless device applies the HARQ mode B to the wireless device served by the terrestrial network cell.

[0010] In some embodiments, a method performed by a network node is disclosed. The method may include: sending a first message to a wireless device instructing the wireless device to deactivate a DRX HARQ round trip time timer (drx-HARQ-RTT-Timer), wherein the drx-HARQ-RTT-Timer is applied to a target of the wireless device, and the target includes one of the following: a data radio bearer (DRB); a logical channel; a semi-persistent scheduling (SPS); a configuration grant (CG); or a hybrid automatic repeat request (HARQ) process.

[0011] In some embodiments, a method performed by a network node is disclosed. The method may include: sending an indicator indicating whether cell discontinuous operation is activated in a cell of the network node via a UE-specific message targeted at a wireless device, wherein the cell discontinuous operation includes at least one of cell discontinuous transmission (DTX) or cell discontinuous reception (DRX).

[0012] In some embodiments, there is a wireless device or a network node comprising a processor and a memory, wherein the processor is configured to read the code from the memory and implement the method recited in any one of the embodiments.

[0013] In some embodiments, a computer program product includes a computer-readable program medium code stored thereon, and when the code is executed by a processor, the processor implements the method recited in any one of the embodiments.

[0014] Other aspects and alternatives of the above-described embodiments and their implementations are described in detail in the following drawings, descriptions and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An example wireless communication network is shown.

[0016] Figure 2 An example wireless network node is shown.

[0017] Figure 3 An example user device is shown.

[0018] Figure 4a-4c An exemplary mapping of resources (DRB, LC, SPS, CG) to HARQ processes is shown.

[0019] Figure 5 A universal (suitable for all) connected DRX configuration is shown to be applied to all HARQ services in a cell or DRB group.

[0020] Figure 6a-6f Exemplary connected-mode DRX configurations specifically for or targeting a resource or HARQ process are shown.

[0021] Figure 7 An exemplary message flow for configuring connected DRX configuration for a UE-specific service is shown.

[0022] Figure 8 An exemplary message flow for configuring a HARQ mode for a UE according to the UE's support capability for the HARQ mode mechanism in a TN network is shown.

[0023] Fig. 9 A scenario is shown where the UE misses cell DTX and / or cell DRX activation.

[0024] Fig.10 An exemplary message flow for activating cell DTX and / or cell DRX upon UE handover or UE RRC connection establishment is shown.

[0025] Fig.11 A cell DTX and cell DRX configuration is shown with an exemplary combination of cell DTX and / or cell DRX activation indicators sent to a UE.

[0026] Fig.12 Another exemplary individual cell DTX configuration and cell DRX configuration with cell DTX and / or cell DRX activation indicators sent to a UE is shown. DETAILED DESCRIPTION

[0027] Wireless communication network

[0028] Figure 1 An exemplary wireless communication network 100 is shown including a core network 110 and a radio access network (RAN) 120, wherein the core network 110 also includes at least one mobility management entity (MME) 112 and / or at least one access and mobility management function (AMF). Other functions that may be included in the core network 110 are not described in detail. Figure 1 . RAN 120 also includes a plurality of base stations, for example, base stations 122 and 124. The base station may include at least one evolved Node B (eNB) for 4G LTE, an enhanced LTE eNB (ng-eNB), or a next generation Node B (gNB) for 5G New Radio (NR), or any other type of signal transmission / reception device (such as UMTS NodeB). eNB 122 communicates with MME 112 via an S1 interface. Both eNB 122 and gNB 124 may be connected to AMF 114 via an Ng interface. Each base station manages and supports at least one cell. For example, base station gNB 124 may be configured to manage and support cell 1, cell 2, and cell 3.

[0029] The gNB 124 may include a central unit (CU) and at least one distributed unit (DU). The CU and the DU may be co-located at the same location, or may be separated at different locations. The CU and the DU may be connected via an F1 interface. Alternatively, for an eNB capable of connecting to a 5G network, it may also be divided into a CU and at least one DU, referred to as ng-eNB-CU and ng-eNB-DU, respectively. The ng-eNB-CU and the ng-eNB-DU may be connected via a W1 interface.

[0030] The wireless communication network 100 may include one or more tracking areas. A tracking area may include a set of cells managed by at least one base station. For example, tracking area 1, labeled 140, includes cell 1, cell 2, and cell 3, and may further include tracking areas that may be managed by other base stations and are not in the tracking area. Figure 1 1. The wireless communication network 100 may further include at least one UE 160. The UE may select a cell among a plurality of cells supported by a base station to communicate with the base station via an over-the-air (OTA) radio communication interface and resources, and may reselect a cell for communication as the UE 160 travels in the wireless communication network 100. For example, the UE 160 may first select cell 1 for communication with the base station 124, and then reselect cell 2 at a later point in time. The UE 160 may select or reselect a cell based on wireless signal strength / quality and other factors in the various cells.

[0031] The wireless communication network 100 may be implemented as, for example, a 2G, 3G, 4G / LTE or 5G cellular communication network. Accordingly, base stations 122 and 124 may be implemented as 2G base stations, 3G NodeBs, LTE eNBs or 5G NR gNBs. UE 160 may be implemented as a mobile or fixed communication device capable of accessing the wireless communication network 100. UE 160 may include, but is not limited to, mobile phones, portable computers, tablet computers, personal digital assistants, wearable devices, Internet of Things (IoT) devices, MTC / eMTC devices, distributed remote sensor devices, roadside assistance equipment, XR devices and desktop computers. UE 160 may also be generally referred to as a wireless communication device or a wireless terminal. UE 160 may support sidelink communication with another UE via a PC5 interface.

[0032] Although the following content focuses on Figure 1 A cellular wireless communication system is shown, but the basic principles are applicable to other types of wireless communication systems for paging wireless devices. These other wireless systems may include, but are not limited to, Wi-Fi, Bluetooth, ZigBee, and WiMAX networks.

[0033] Figure 2An example of an electronic device 200 for implementing a network base station (e.g., a radio access network node), a core network (CN), and / or operations and maintenance (OAM) is shown. Optionally, in one embodiment, the example electronic device 200 may include a radio transmit / receive (Tx / Rx) circuit 208 to send / receive communications with a UE and / or other base stations. Optionally, in one embodiment, the electronic device 200 may also include a network interface circuit system 209 to enable communication between the base station and other base stations and / or a core network such as optical or wired interconnection, Ethernet, and / or other data transmission media / protocols. The electronic device 200 may optionally include an input / output (I / O) interface 206 to communicate with an operator or the like.

[0034] The electronic device 200 may also include a system circuit system 204. The system circuit system 204 may include (multiple) processors 221 and / or memory 222. The memory 222 may include an operating system 224, instructions 226, and parameters 228. The instructions 226 may be configured for one or more of the processors 221 to perform the functions of the network node. The parameters 228 may include parameters for supporting the execution of the instructions 226. For example, the parameters may include network protocol settings, bandwidth parameters, radio frequency mapping allocations, and / or other parameters.

[0035] Figure 3An example of an electronic device for implementing a terminal device 300 (e.g., a user equipment (UE)) is shown. The UE 300 may be a mobile device, such as a smart phone or a mobile communication module provided in a vehicle. The UE 300 may include some or all of the following: a communication interface 302, a system circuit system 304, an input / output interface (I / O) 306, a display circuit system 308, and a storage device 309. The display circuit may include a user interface 310. The system circuit system 304 may include any combination of hardware, software, firmware, or other logic / circuits. The system circuit system 304 may be implemented, for example, by one or more systems on a chip (SoC), application specific integrated circuits (ASICs), discrete analog and digital circuits, and other circuit systems. The system circuit 304 may be part of any desired functional implementation in the UE 300. In this regard, as an example, the system circuit 304 may include logic to facilitate decoding and playing music and video (e.g., MP3, MP4, MPEG, AVI, FLAC, AC3, or WAV decoding and playback); running applications; accepting user input; saving and retrieving application data; establishing, maintaining, and terminating cellular phone calls or data connections, as an example, for Internet connections; establishing, maintaining, and terminating wireless network connections, Bluetooth connections, or other connections; and displaying relevant information on the user interface 310. The user interface 310 and input / output (I / O) interface 306 may include a graphical user interface, a touch-sensitive display, tactile feedback or other tactile output, voice or facial recognition input, buttons, switches, speakers, and other user interface elements. Additional examples of the I / O interface 306 may include microphones, video and still image cameras, temperature sensors, vibration sensors, rotation and orientation sensors, headphone and microphone input / output jacks, universal serial bus (USB) connectors, memory card slots, radiation sensors (e.g., IR sensors), and other types of inputs.

[0036] refer to Figure 3, the communication interface 302 may include radio frequency (RF) transmit (Tx) and receive (Rx) circuitry 316 that handles the transmission and reception of signals through one or more antennas 314. The communication interface 302 may include one or more transceivers. The transceiver may be a wireless transceiver that includes modulation / demodulation circuitry, digital-to-analog converters (DACs), shaping tables, analog-to-digital converters (ADCs), filters, waveform shapers, filters, preamplifiers, power amplifiers, and / or other logic for transmitting and receiving through one or more antennas or (for some devices) through a physical (e.g., wired) medium. The transmitted and received signals may conform to any of a diverse array of formats, protocols, modulations (e.g., QPSK, 16-QAM, 64-QAM, or 256-QAM), frequency channels, bit rates, and encodings. As a specific example, the communication interface 302 may include a transceiver that supports transmission and reception under 2G, 3G, BT, WiFi, Universal Mobile Telecommunications System (UMTS), High Speed ​​Packet Access (HSPA) +, 4G / Long Term Evolution (LTE), and 5G standards. However, the techniques described below are applicable to other wireless communication technologies, whether derived from the Third Generation Partnership Project (3GPP), GSM Association, 3GPP2, IEEE, or other partners or standards bodies.

[0037] refer to Figure 3 , the system circuit system 304 may include one or more processors 321 and a memory 322. The memory 322 stores, for example, an operating system 324, instructions 326, and parameters 328. The processor 321 is configured to execute the instructions 326, thereby implementing the desired functions of the UE 300. The parameters 328 may provide and specify configuration and operating options for the instructions 326. The memory 322 may also store any BT, WiFi, 3G, 4G, 5G or other data that the UE 300 will send or has received through the communication interface 302. In various implementations, the system power of the UE 300 may be supplied by a power storage device such as a battery or a transformer.

[0038] Connected Discontinuous Reception (CDRX)

[0039] In a wireless communication network, a UE may always listen / monitor the network (e.g., a base station) to check if there is new downlink data. The UE may also need to wait for an uplink grant for sending uplink data. Notifications for scheduled downlink data or uplink transmission grants may arrive via a physical downlink control channel (PDCCH) that the UE needs to monitor. Listening / monitoring the network all the time does not achieve energy saving effects, and the UE's battery will also be exhausted quickly. For example, if the UE has little or no traffic, the UE still needs to stay awake to monitor the PDCCH even if there is no downlink reception or uplink transmission of the UE (e.g., for one or more subframes). In order to reduce UE power consumption, a connected state (or mode) discontinuous reception (CDRX) feature is introduced. When CDRX is configured for a UE in a connected state, each CDRX cycle may include an "ON" and an "OFF". The UE does not have to monitor the PDCCH continuously, but only monitors the PDCCH during the "ON" period and switches to sleep mode during the "OFF" period. In sleep mode, the UE may shut down certain hardware circuitry, such as a radio frequency (RF) chain, to reduce power consumption.

[0040] In an example implementation, the UE may be configured with a set of CDRX parameters (e.g., by a base station). These CDRX parameters may be selected based on, for example, the type of service or application, so as to maximize power and resource savings while still meeting the quality of service (QoS) requirements of the service or application. It should be noted that the CDRX parameters may affect service performance metrics, such as latency, etc.

[0041] For example, there may be a delay in receiving data because the UE may be in an off period when the data arrives at a base station (such as a gNB), and the base station can only wait until the UE enters the on state. Therefore, the CDRX parameters need to be carefully selected to find a balance between energy saving and its impact on QoS.

[0042] Discontinuous transmission (DTX) and discontinuous reception (DRX)

[0043] In order to further reduce the energy consumption of base stations such as gNBs, a base station-side discontinuous transmission (DTX) mode may be implemented. The base station-side DTX mode may be applied at various levels, such as a cell level, a cell group level, a DU level, a DU group level, or an entire base station level. Taking a cell as an example, when the DTX mode is applied to a cell, the cell may be configured with a cell DTX cycle. Within each cell DTX cycle, there may be an "on" period and an "off" period. The cell may send downlink data to the UE it serves only during the "on" period, and suspend data transmission during the "off" period to reduce power consumption. In some embodiments, during the cell DTX "off" period, the downlink signal or downlink channel is disabled, that is, the cell does not send a downlink signal or channel during the cell DTX off period. At the same time, the UE does not receive a downlink signal or channel during the cell DTX off period. For example, the UE does not monitor the PDCCH and PDSCH through SPS (semi-persistent scheduling) during the cell DTX off period.

[0044] Similar concepts can also be applied to data reception at the base station. A discontinuous reception (DRX) mode at the base station side can be implemented. The DRX mode at the base station side can be similarly applied to various levels, such as cell level, cell group level, DU level, DU group level, or the entire base station level. Taking a cell as an example, when the DRX mode is applied to the cell, the cell can be configured with a cell DRX cycle. Within each cell DRX cycle, there may be an "on" period and an "off" period. The cell can receive uplink data from the UE only during the "on" period, and suspend data reception during the off period to further reduce power consumption. In some embodiments, during the cell DRX off period, the uplink signal or uplink channel is disabled, that is, the UE does not send an uplink signal or channel during the cell DRX off period, and the cell does not receive an uplink signal or channel during the cell DRX off period. For example, the UE will not send PUSCH through CG (configuration grant) during the cell DRX off period.

[0045] The above description uses a cell as an example. The same basic concept can be applied to a cell group, a DU, a DU group, and a base station.

[0046] In the present disclosure, various embodiments are disclosed to reduce power consumption at a base station and a UE. These embodiments at least cover:

[0047] Configure CDRX parameters at a finer level: per DRB, per logical channel, per half-persistent

[0048] Scheduling (SPS), per Configuration Grant (CG), or per Hybrid Automatic Repeat Request (HARQ)

[0049] CDRX configuration for the process.

[0050] • Configure the HARQ mode for UEs in the Terrestrial Network (TN).

[0051] • Deactivate HARQ timers with finer levels: per DRB, per logical channel, per semi-persistent scheduling (SPS), per configuration grant (CG) or per hybrid automatic repeat request (HARQ) process.

[0052] • Cell DTX and / or cell DRX activation indication.

[0053] These embodiments are described in detail below.

[0054] Example 1: CDRX configuration parameters for each service configuration

[0055] In a wireless network, UEs may support various types of services, such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). eMBB services provide greater data bandwidth and may include augmented reality (AR), virtual reality (VR), UltraHD or 360-degree streaming video, etc. mMTC services may include narrowband Internet of Things (NB-IoT). URLLC services provide high reliability and low latency, and may include mission-critical applications such as autonomous driving, vehicle-to-everything (V2X), remote diagnosis / surgery, smart energy, and power grids.

[0056] Each service may be associated with specific service characteristics such as packet delay budget, packet error rate, maximum data burst, priority, reliability requirements, allowed retransmission delay, etc. For example, the packet delay budget defines an upper limit on the time that a packet can be delayed between the UE and the network (e.g., user plane function (UPF)). Different services may have different characteristics and different QoS requirements. For example, a URLLC service may have strict low latency requirements and may tolerate only minimum packet delays, while it may not require high bandwidth. On the other hand, an eMBB service may require higher bandwidth but may not be as sensitive to packet delays.

[0057] Under CDRX, the UE may be configured with one or more connected DRX configurations. Each connected DRX configuration may include at least one of the following parameters:

[0058] DRX downlink retransmission timer (drx-RetransmissionTimerDL): The maximum duration until a DL retransmission is received. Each downlink hybrid automatic repeat request (HARQ) process (except the broadcast process) can correspond to a drx-RetransmissionTimerDL;

[0059] DRX uplink retransmission timer (drx-RetransmissionTimerUL): The maximum duration until a UL retransmission grant is received. Each uplink HARQ process may correspond to a drx-RetransmissionTimerUL;

[0060] DRX downlink HARQ round trip time (RTT) timer (drx-HARQ-RTT-TimerDL): The minimum waiting time that the UE expects to receive the PDCCH indicating the downlink scheduling. Each downlink HARQ process (except the broadcast process) can correspond to one drx-HARQ-RTT-TimerDL;

[0061] DRX Uplink HARQ RTT Timer (drx-HARQ-RTT-TimerUL): The minimum waiting time that the UE expects to receive a PDCCH indicating uplink scheduling. Each uplink HARQ process may correspond to DRX-HARQ-RTT-TimerUL.

[0062] These parameters may affect the allowed retransmission delay for a UE service and the time at which the UE enters a CDRX off period. In a wireless network, a UE may support different services / sessions, such as different protocol data unit (PDU) sessions, different QoS flows, etc. These services may be mapped to different resources based on service requirements. For example, these services may be mapped to:

[0063] Different data radio bearers (DRBs);

[0064] Different logical channels (LCs);

[0065] Different resources allocated by semi-persistent scheduling (SPS); or

[0066] Different resources are allocated by Configuration Grant (CG).

[0067] The above configurations / resources (DRB, LC, SPS, and CG) may use independent HARQ processes.

[0068] Figure 4a An exemplary resource to HARQ process mapping is described. Figure 4aAs shown, DRB1 and DRB2 are mapped to LC1, and LC1 is configured with HARQ process n to HARQ process (n+m), where n and m are non-negative integers.

[0069] Figure 4b Another exemplary resource-to-HARQ process mapping is shown. Figure 4b As shown, one or more DRBs may be mapped to an LC, one or more LCs may be configured with an SPS resource, and an SPS resource may be configured with one or more HARQ processes.

[0070] Figure 4c Another exemplary resource-to-HARQ process mapping is shown. Figure 4c As shown, one or more DRBs may be mapped to an LC, one or more LCs may be configured with a CG resource, and a CG resource may be configured with one or more HARQ processes.

[0071] The connected DRX timers (e.g., drx-RetransmissionTimerDL, drx-RetransmissionTimerUL, drx-HARQ-RTT-TimerDL, and drx-HARQ-RTT-TimerUL) included in the connected DRX configuration as described above may be started or stopped per HARQ process. That is, each HARQ process may have its own set of timers.

[0072] In some example implementations, a "fits all" connected DRX configuration is applied to all HARQ processes (and all UE services). Figure 5 As shown, a universal connected DRX configuration 502 is applied to multiple HARQ processes (or resources allocated for multiple services). A "fits all" connected DRX configuration may be at, for example, a cell level or a DRX group level, where the connected DRX configuration is applied to all HARQ processes in a cell or a cell group. Therefore, the precision (or target level) of the connected DRX configuration is at a cell level or a DRX group level.

[0073] In some example implementations, rather than using a "one size fits all" connected DRX configuration applicable to all types of services, each service may be configured with a connected DRX configuration. That is, the precision (or target level) of the connected DRX configuration is raised to the service level, or one or more of the following levels: DRB level, LC level, SPS level, CG level, or HARQ process level.

[0074] As mentioned above, the connected DRX configuration may include at least one of the following parameters:

[0075] ·drx-RetransmissionTimerDL;

[0076] ·drx-RetransmissionTimerUL;

[0077] drx-HARQ-RTT-TimerDL; or

[0078] drx-HARQ-RTT-TimerUL.

[0079] In this embodiment, the connected DRX configuration may be configured to the UE at various levels and with different precisions.

[0080] In some example implementations, the connected DRX configuration may be configured per DRB. Figure 6a As shown in , different DRBs may be configured with different connected state DRX configurations.

[0081] In some example implementations, the connected DRX configuration may be configured per LC. Figure 6b As shown in , different LCs may be configured with different connection-state DRX configurations.

[0082] In some example implementations, the connected DRX configuration may be configured per SPS (i.e., a service using resources allocated by the SPS). Figure 6c As shown in , different SPSs may be configured with different connected DRX configurations.

[0083] In some example implementations, the connected DRX configuration may be configured per CG (i.e., a service using resources allocated by a CG). Figure 6d As shown in , different CGs can be configured with different connection state DRX configurations.

[0084] In some example implementations, the connected DRX configuration may be configured per HARQ process, such as Figure 6e As shown in , different HARQ processes may be configured with different connected DRX configurations.

[0085] Figure 6f Another example of connected DRX configuration allocation is shown.

[0086] Figure 7 A sample message flow for the base station to configure the connected DRX configuration to the UE is also shown, and the connected DRX configuration is based on each service / resource or each HARQ process.

[0087] In some example implementations, the connected DRX configuration may be pre-configured to the UE by the network (e.g., a base station in the network) via, for example, messages at various layers (e.g., layer 3, layer 2, and layer 1), such as radio resource control (RRC) messages, media access control-control element (MAC CE) messages, downlink control information (DCI) messages, system information messages, broadcast messages, etc. For example, the UE may receive a system information message carrying a connected DRX configuration list.

[0088] In some implementations, the UE may receive an indicator indicating which specific connected DRX configuration from a list of connected DRX configurations to select for a specific service (e.g., a DRB, LC, SPS, CG, or HARQ process to which a service is mapped). The indicator may be, for example, an index to the list of connected DRX configurations. The UE may then apply the selected connected DRX configuration to a specific target (e.g., a DRB, LC, SPS resource, CG resource, HARQ process). In this scenario, the connected DRX configuration is assigned to each service individually (or, the connected DRX configuration is assigned to each target individually).

[0089] In some implementations, the UE may receive the connected DRX configuration and an indication of a target to which the configuration applies.

[0090] In some implementations, it is possible to combine multiple assignments in a single message. Figure 6a , a single message may carry an indicator indicating that connected state DRX configuration 1 is assigned to DRB 1 and connected state DRX configuration 2 is assigned to DRB 2. It should be noted that the configuration allocation is performed for each target (e.g., DRB, LC, SPS resource, CG resource, or HARQ process).

[0091] In some implementations, it is possible to combine multiple allocations into a single message, and one connected DRX configuration can be allocated to multiple targets. For example, one connected DRX configuration can be allocated to a group of DRBs, a group of LCs, a group of HARQ processes, etc.

[0092] In some implementations, it is possible for multiple services to use the same connected DRX configuration. For example, one set of DRBs may use connected DRX configuration 1, another set of DRBs may use connected DRX configuration 2, and another set of HARQ processes may use connected DRX configuration 3. Note that in this case, connected DRX configurations 1, 2, and 3 are not "one size fits all" connected DRX configurations, even though each of them may apply to multiple services. For example, for each service, the network may still need to separately indicate which connected DRX configuration to use.

[0093] In some example implementations, the UE may still be configured with a "fits all" connected state DRX configuration, such as a cell-level or DRX group-level connected state DRX configuration. The "fits all" connected state DRX configuration may be used as a default configuration. In this case, if configured, the service-specific connected state DRX configuration has a higher priority. That is, if a service-specific connected state DRX configuration is configured for a DRB, LC, SPS, CG, or HARQ process, the service-specific connected state DRX configuration is applied to, for example, the DRB, LC, SPS, CG, or HARQ process. Otherwise, a cell-level or DRX group-level connected state DRX configuration may be applied.

[0094] In this embodiment, the connected DRX configuration is specific to a service (or target such as resources or HARQ processes) rather than being "one size fits all". For each service, the network can specify a connected DRX configuration. Thus, the network can obtain precise control over the transmission characteristics of the service based on, for example, service requirements (such as QoS requirements). The connected DRX configuration provided in this embodiment has higher precision than a "one size fits all" configuration.

[0095] Embodiment 2: HARQ mode configuration in a terrestrial network

[0096] In non-terrestrial networks (NTNs), different HARQ modes may be supported, including HARQ Mode A and HARQ Mode B, with the goal of increasing UE data rates in large RTT (round trip time) use cases and avoiding HARQ stalls. In HARQ Mode A, a HARQ RTT timer and a retransmission timer may be started (e.g., retransmission is activated). However, in HARQ Mode B, a HARQ RTT timer and a retransmission timer are not started. For example, for a UE in an NTN, if a HARQ process is configured with HARQ Mode B, the UE is not expected to start a HARQ RTT timer and / or a retransmission timer.

[0097] In some example implementations, a base station in the NTN can indicate to the UE whether to start a HARQ RTT timer and / or a retransmission timer for a HARQ process associated with the service based on service characteristics of the service (e.g., service type, QoS requirements, service style, etc.).

[0098] However, in a terrestrial network (TN) environment, the above-mentioned HARQ mode for the NTN network is not supported. Although it may still be beneficial to adopt the HARQ mode in the TN network. For example, the UE may carry a service with a small period (e.g., with a period of 4 milliseconds), but energy saving is crucial for the UE (e.g., CG and / or CDRX may be configured / activated for the UE). In this case, if the HARQ RTT timer and the retransmission timer are started, it will be difficult or even impossible for the UE to enter the CDRX off state to achieve energy saving. On the other hand, for services with a small period, retransmission can still be performed on the next CG opportunity or scheduling grant if necessary. Therefore, there is no need to start the HARQ timer and the retransmission timer, which can improve the energy saving effect of the UE.

[0099] In this embodiment, the above-mentioned HARQ mode can be added in a TN network. However, the UE may or may not have the capability to support this feature. For example, a legacy UE or a low-end UE may not support this feature. This may cause some problems on the base station side. Since the base station does not know the UE's capability to support the HARQ mode, the base station may not utilize its knowledge of the service characteristics of the UE service. For example, in this case, the base station cannot instruct the UE in any way not to start the HARQ RTT timer and / or the retransmission timer for the HARQ process, even if the base station knows that it is beneficial not to start the HARQ RTT timer and / or the retransmission timer for the HARQ process. Since the timer must be started unconditionally, this behavior may further have a negative impact on the UE power consumption.

[0100] In this embodiment, when the UE is in TN, it can report to the base station its UE capabilities regarding supporting HARQ modes. For example, the UE can report whether it supports the above HARQ mode mechanism (or whether it supports HARQ mode B). When the UE is served by a terrestrial network cell, the base station can configure the HARQ mode (e.g., HARQ mode A or HARQ mode B) to the UE only if the UE supports the HARQ mode mechanism in TN. Figure 8 An exemplary process is described in .

[0101] like Figure 8As shown in , the UE capabilities may be sent in a radio resource control (RRC) message, such as RRC Msg3 / Msg5 (e.g., as seen in a random access procedure and / or an RRC connection establishment procedure), a UECapabilityInformation message, an uplink media access control-control element (UL MAC CE) message. Alternatively, the UE capabilities may be implicitly indicated by the UL LC_ID (logical channel ID) in the MAC CE header.

[0102] In some implementations, when the UE is in a TN cell (or served by a TN cell), the HARQ mode configuration is applied to an uplink HARQ mode (uplinkHARQ-Mode).

[0103] The HARQ mode configuration may be set, for example, by uplinkHARQ-Mode in an RRC message for the UE in the TN cell. For example, the uplinkHARQ-Mode bit for the HARQ process may be set to HARQ-Mode B.

[0104] Table 1 below shows an example logic flow for starting relevant HARQ RTT timers in NTN and NT networks. In Table 1, if the name of the timer ends with "-NTN", it indicates that the timer applies to the NTN network; otherwise, the timer applies to the TN network.

[0105] Table 1

[0106]

[0107]

[0108] Embodiment 3: HARQ timer deactivation indicator

[0109] In this embodiment, an indication for deactivating (or not starting) a drx-HARQ-RTT-Timer may be configured per UE, per DRB, per logical channel, per SPS, per CG, and / or per HARQ process. The drx-HARQ-RTT-Timer may include a drx-HARQ-RTT-TimerDL and a drx-HARQ-RTT-TimerUL, as described above. When the timer is deactivated, the UE is not expected to start the timer.

[0110] In an example embodiment, based on the service characteristics of a service associated with one of the DRB, logical channel, SPS, CG, or HARQ process, a base station (e.g., gNB) may decide to deactivate the drx-HARQ-RTT-Timer (for DL ​​and / or UL) by using a service-specific indicator.

[0111] Specifically, if the indication for deactivating the drx-HARQ-RTT-Timer is configured per UE, per DRB, per logical channel, per SPS, per CG, and / or per HARQ process, the UE will not start or be expected to start the drx-HARQ-RTT-Timer when sending or receiving data for the DRB, logical channel, SPS, CG, and / or HARQ process accordingly. That is, the accuracy (or target level) for deactivating the drx-HARQ-RTT-Timer is increased to one or more of the following levels: UE level, DRB level, LC level, SPS level, CG level, or HARQ process level.

[0112] The indication for deactivating drx-HARQ-RTT-Timer (UL and DL) may be configured by an RRC message, a MAC CE message, or a DCI message.

[0113] The indication for deactivating the drx-HARQ-RTT-Timer may also be carried via a HARQ feedback disabled indicator, for example, to disable HARQ feedback. When HARQ feedback is disabled, the drx-HARQ-RTT-Timer may be deactivated.

[0114] In some example implementations, the UE may support or not support a feature of DRX HARQ RTT timer deactivation, or the UE may support or not support a feature of DRX HARQ feedback deactivation. In this case, the UE may send an indicator to the base station, the indicator indicating the radio capabilities of the UE. The radio capabilities indicate whether the UE supports the DRX HARQ RTT timer deactivation feature or whether the UE supports the HARQ feedback deactivation feature. Based on the indicator, the base station may decide whether to allow deactivation of the DRX HARQ RTT timer for the UE, or deactivation of HARQ feedback.

[0115] Example 4: Cell DTX / DRX activation indication

[0116] As described in the above sections, cell DTX and / or cell DRX may be used to save network energy consumption (e.g., save gNB energy). The cell DTX / DRX feature may be activated or deactivated based on, for example, a cell load or other traffic pattern that may affect cell signal transmission and / or reception. The cell load may include a cell load measured in real time, or a cell load predicted based on historical data via, for example, an artificial intelligence (AI) model. The cell DTX / DRX feature may be activated when there is no traffic in the cell or the cell load is light (e.g., below a threshold, below an occupancy rate, etc.), and the cell DTX / DRX feature may be deactivated when the cell is under heavy load (e.g., above a threshold, above an occupancy rate, etc.). In addition, since the cell load is a fluctuating factor, the cell DTX / DRX may be activated / deactivated as needed, and the corresponding cell DTX / DRX configuration (e.g., the period, start time, and / or start offset for determining the DTX / DRX "on" period and the "off" period, etc.) may also be dynamically updated. As an example, when the cell load is within a first range, the cell DTX / DRX configuration 1 may be configured; and when the cell load is within a second range, the cell DTX / DRX configuration 2 may be configured.

[0117] In some example implementations, the cell DTX and / or cell DRX mechanism is a 2-step process. In the first step, when the RRC connection of the UE is established or reconfigured, the cell DTX and / or cell DRX configuration may be pre-configured to the UE. In the second step, when the conditions for activating the cell DTX and / or cell DRX features are met (e.g., based on the cell load conditions), the base station may activate the cell DTX and / or cell DRX features via, for example, layer 1 common signaling (e.g., DCI message). It should be noted that the common signaling may target all UEs that are in an RRC connected state (RRC_CONNECTED) and covered / served by the cell.

[0118] It should be noted that in the above embodiment, when the cell DTX and / or cell DRX configuration is initially configured in the cell, the common signaling is sent to the UE in the RRC connected state. However, for a UE that is not in the RRC connected state (e.g., a UE in an idle or inactive state), it may miss the common signaling for activating the DTX and / or cell DRX features.

[0119] Fig. 9 Showing an example scenario as described above:

[0120] At t0, all UEs in the RRC connected state can receive the cell DTX and / or cell DRX configuration. The configuration has not yet been activated. It should be noted that UE 4 is in an inactive or idle state.

[0121] At t1, it is determined that the cell DTX and / or cell DRX features need to be activated. Common signaling is sent to all UEs in the RRC connected state to indicate feature activation.

[0122] At t2, UE 4 transitions to the RRC connected state. Note that UE 4 has missed the signaling sent at t1 and is not aware of and will not apply the cell DTX and / or cell DRX feature activation.

[0123] Similarly, the above problem may also occur during the UE handover process. Fig. 9 , at t2, UE 5 switches from cell 2 to cell 1. Since the switch occurs after the initial cell DTX and / or cell DRX feature activation at t1, UE 5 is not aware of and will not apply the cell DTX and / or cell DRX feature activation.

[0124] In the present disclosure, various solutions are described as follows to solve the above-mentioned problems.

[0125] Solution 1:

[0126] refer to Fig.10 , when the UE switches to cell 1 with cell DTX activated and / or cell DRX already activated, or if the UE is in the RRC connection establishment process (when the cell DTX and / or cell DRX features are initially activated, the UE is in an inactive or idle state), the UE may receive the cell DTX and / or cell DRX configuration, such as Fig.10 As shown in step S1001 in . For example, the UE may receive one or more cell DTX and / or cell DRX configurations (e.g., a configuration list). The indicator may be sent together with the configuration, or via another message. The indicator may indicate that the cell DTX and / or cell DRX feature is activated, or which configuration needs to be applied and activated. Once the UE receives the indicator, it will immediately activate the cell DTX and / or cell DRX feature using the indicated configuration.

[0127] In some example implementations, the configuration list may include configurations for both cell DTX configurations and cell DRX configurations.

[0128] In some example implementations, there may be two lists, one for cell DTX configurations and another for cell DRX configurations. Accordingly, there may be two indicators, one for indicating the cell DTX configuration and another for indicating the cell DRX configuration. This allows the cell DTX and the cell DRX features to be activated separately. The basic principle is that (multiple) indications may be sent to the UE to indicate which features (i.e. cell DTX and / or cell DRX) are to be activated using the indicated configuration.

[0129] If the UE switches to cell 1 with the cell DTX and / or cell DRX features deactivated, the indicator will indicate accordingly, so that the UE does not activate the cell DTX and / or the cell DRX features immediately after the switch. If the cell DRX and cell DTX features are activated later, layer 1 common signaling indicating feature activation may be sent to the UE.

[0130] In some example implementations, the indicator may be mandatory. For example, a value of 1 may indicate that the feature is activated, and a value of 0 may indicate that the feature is not activated.

[0131] In some example embodiments, the indicator may be optional. When the indicator is present, it indicates that the feature is activated, and if the indicator is not present, it indicates that the feature is not activated.

[0132] Fig.11 An example cell DTX / DRX configuration is shown. Fig.11 In the process, the cell DTX configuration and the cell DRX configuration can be sent in combination. Fig.11 Three combination configurations 1102, 1104 and 1106 are shown. To indicate the combination, an indicator 1108 may be attached to the selected configuration. Alternatively, an index may be sent to indicate which element in the configuration list is selected. For example, an indicator equal to 2 indicates (cell DTX configuration 2 + cell DRX configuration 2).

[0133] It should be noted that the cell DTX configuration and the cell DRX configuration can be sent separately, such as Fig.12 As shown. Cell DTX configurations 1202, 1204, and 1206 and cell DRX configurations 1212, 1214, and 1216 may be sent to the UE. Indicator 1208 may be used to indicate a cell DTX configuration to be activated, and another indicator 1218 may be used to indicate a cell DRX configuration to be activated.

[0134] In some example implementations, step S1001 may occur during a handover process or an RRC connection establishment process. For example, the UE may receive a message from cell 2 in S1001, which is the source cell in the handover process. That is, the cell DTX and / or cell DRX configuration, and / or the feature activation indicator may be sent by the source cell. Benefits may include fast feature activation - because feature activation is part of the handover process or the RRC connection establishment process. Once the UE is handed over, or once the UE RRC connection is established, the cell DTX and / or the cell DRX feature has been activated with the indicated configuration.

[0135] Solution 2:

[0136] In this solution, both layer 1 common signaling (eg, common DCI) and UE-specific signaling (eg, MACCE, or UE-specific DCI, or dedicated RRC signaling) may be used to activate the cell DTX and / or cell DRX features.

[0137] When the cell DTX and / or the cell DRX is preliminarily activated, layer 1 common signaling (eg, common DCI) may be sent to the UE in the RRC connected state (RRC_CONNECTED) to activate the cell DTX and / or the cell DRX.

[0138] When cell DTX and / or cell DRX have been activated for a cell and a UE is handed over to the cell, if the UE is in the RRC connection establishment process, in order to establish an RRC connection with the cell, UE-specific signaling (e.g., MAC CE, or UE-specific DCI, or dedicated RRC signaling) may be sent to the UE to activate cell DTX and / or cell DRX. The indicator may also be implemented as described in the above solution 1.

[0139] In some example implementations, a UE may support or not support features of a cell DTX operation and / or a cell DRX operation. In this case, the UE may send an indicator to a base station, the indicator indicating the radio capabilities of the UE. The radio capabilities indicate whether the UE supports the cell DTX operation and / or the cell DRX operation. Based on the indicator, the base station may decide whether to allow the cell DTX operation and / or the cell DRX operation to be configured and / or activated for the UE.

[0140] The above description and the accompanying drawings provide specific example embodiments and implementations. However, the described subject matter may be embodied in a variety of different forms, and therefore, the subject matter covered or claimed is intended to be interpreted as not being limited to any example embodiment set forth herein. A reasonably broad scope of the subject matter to be claimed or covered is intended. In addition, for example, the subject matter may be embodied as a method, device, component, system, or non-transitory computer-readable medium for storing computer code. Therefore, the embodiment may, for example, take the form of hardware, software, firmware, storage medium, or any combination thereof. For example, the above method embodiment may be implemented by a component, device, or system including a memory and a processor by executing a computer code stored in the memory.

[0141] Throughout the specification and claims, terms may have nuanced meanings that are suggested or implied by the context beyond the explicitly stated meaning. Likewise, the phrase "in one embodiment / implementation" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment / implementation" as used herein does not necessarily refer to a different embodiment. For example, the claimed subject matter is intended to include, in whole or in part, a combination of the example embodiments.

[0142] Generally speaking, terms can be understood at least in part based on usage in context. For example, terms such as "and", "or" or "and / or" as used herein may include various meanings that may depend at least in part on the context in which the terms are used. Typically, "or" if used for an association list (such as A, B or C) is intended to represent A, B and C (here used in an inclusive sense) as well as A, B or C (here used in an exclusive sense). In addition, depending at least in part on the context, the term "one or more" as used herein may be used to describe any feature, structure or characteristic in a singular sense, or may be used to describe a combination of features, structures or characteristics in a plural sense. Similarly, depending at least in part on the context, terms such as "one", "an" or "the" may be understood to convey singular usage or to convey plural usage. In addition, the term "based on" may be understood to not necessarily be intended to convey a set of exclusive factors, and may alternatively allow for the presence of additional factors that are not necessarily explicitly described, again, depending at least in part on the context.

[0143] Reference to descriptions of features, advantages, or similar language throughout the specification does not imply that all features and advantages that may be achieved with the present solution should be or are included in any single embodiment thereof. Rather, language referring to features and advantages is understood to mean that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present solution. Thus, discussion of features and advantages and similar language throughout the specification may, but does not necessarily, refer to the same embodiment.

[0144] In addition, the features, advantages, and characteristics described in the present solution may be combined in any suitable manner in one or more embodiments. Based on the description herein, one of ordinary skill in the relevant art will recognize that the present solution may be practiced without one or more of the specific features or advantages of a particular embodiment. In other cases, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the present solution.

Claims

1. A method for wireless communication, performed by a wireless device, comprising: A first message is received from a network node, the first message including a first connected state discontinuous reception (DRX) configuration or an indicator indicating the first connected state DRX configuration, wherein the first connected state DRX configuration is assigned to a first target associated with a first service of the wireless device, the first target including one of the following: Data Radio Bearer (DRB); Logical channels; Semi-persistent scheduling (SPS); Configuration Grant (CG); or A hybrid automatic repeat request (HARQ) process; and Applying the first connected state DRX configuration to the first target.

2. The method according to claim 1, wherein the connected DRX configuration comprises at least one of the following parameters for downlink or uplink data retransmission: drx-RetransmissionTimerDL; drx-RetransmissionTimerUL; drx-HARQ-RTT-TimerDL; or drx-HARQ-RTT-TimerUL.

3. The method according to claim 1, wherein: The first message further includes a second connection state DRX configuration or an indicator indicating the second connection state DRX configuration; The second connected state DRX configuration is assigned to a second target associated with a second service of the wireless device; the second target is different from the first target; and The second connection state DRX configuration is different from the first connection state DRX configuration. 4 . The method according to claim 1 , wherein the indicator indicates the first connected DRX configuration from a connected DRX configuration list.

5. The method according to claim 4, wherein the connected DRX configuration list is pre-configured to the wireless device via one of the following: RRC message; MAC CE message; system information messages; or Broadcast message. 6 . The method according to claim 1 , wherein the first connected-state DRX configuration has a higher priority than a cell-level connected-state DRX configuration.

7. The method according to claim 1, wherein the network node comprises at least one of the following: gNodeB(gNB); eNodeB (eNB); ng-eNodeB (ng-eNB); or NodeB.

8. A method for wireless communication, performed by a wireless device, comprising: sending an indicator indicating a radio capability of the wireless device to a network node, the radio capability indicating whether the wireless device supports HARQ mode B when a serving cell of the wireless device is a terrestrial network cell, wherein in the HARQ mode B, a HARQ round trip time (RTT) timer and a HARQ retransmission timer are not started; and When the wireless device is in the terrestrial network cell, a HARQ mode indicator is received from the network node, indicating that the wireless device applies the HARQ mode B.

9. The method according to claim 8, wherein: The radio capability further indicates whether the wireless device supports a HARQ mechanism in which the HARQ Mode B or HARQ Mode A may be configured for the wireless device; and In the HARQ mode A, starting the HARQ RTT timer and the HARQ retransmission timer is allowed.

10. The method of claim 8, wherein the indicator is carried via at least one of: Radio Resource Control (RRC) Msg 3; RRC Msg 5; UECapabilityInformation message; Uplink Medium Access Control - Control Element (UL MAC CE) message; or Uplink Logical Channel Identifier (UL LC-ID) in the MAC CE message header.

11. The method of claim 8, wherein the HARQ mode indicator indicates that the wireless device applies the HARQ Mode B to a transmission level, the transmission level comprising at least one of: Per wireless device level; Each DRB level; Per logical channel level; Each SPS level; per CG level; or Per HARQ process level.

12. The method of claim 11, wherein the HARQ mode indicator is sent via at least one of: RRC message; MAC CE message; Downlink Control Information (DCI) message; or Uplink HARQ feedback disabled indicator.

13. The method of claim 11, wherein based on the HARQ mode indicator, the wireless device is not expected to start the HARQ RTT timer for a HARQ process associated with the transmission level.

14. A method for wireless communication, performed by a wireless device, comprising: A first message indicating deactivation of a DRX HARQ round trip time timer (drx-HARQ-RTT-Timer) is received from a network node, the drx-HARQ-RTT-Timer being applied to a target including one of the following: Data Radio Bearer (DRB); Logical channels; Semi-persistent scheduling (SPS); Configuration Grant (CG); or Hybrid Automatic Repeat Request (HARQ) process.

15. The method according to claim 14, wherein before receiving the first message, the method further comprises: An indicator indicating radio capabilities of the wireless device is sent to the network node, the radio capabilities indicating whether the wireless device supports DRX HARQ RTT timer deactivation.

16. The method of claim 14, wherein in response to receiving the first message, the wireless device is not expected to start the drx-HARQ-RTT-Timer associated with the target.

17. The method according to claim 14, wherein the drx-HARQ-RTT-Timer comprises at least one of the following: Uplink drx-HARQ-RTT-Timer; or Downlink drx-HARQ-RTT-Timer.

18. The method of claim 14, wherein the first message is sent via one of: RRC message; MAC CE message; DCI message; or An indicator indicating that uplink HARQ feedback is disabled for the target.

19. A method for wireless communication, performed by a wireless device, comprising: receiving, via a UE-specific message targeted to the wireless device, an indicator indicating whether a cell discontinuous operation is activated in a cell, wherein the cell discontinuous operation comprises at least one of cell discontinuous transmission (DTX) or cell discontinuous reception (DRX); as well as In response to the indicator indicating that the cell discontinuous operation is activated in the cell, activating a configuration associated with the cell discontinuous operation.

20. The method of claim 19, wherein prior to receiving the UE-specific message targeted to the wireless device, the method further comprises: An indicator indicating radio capabilities of the wireless device is sent to a network node, the radio capabilities indicating whether the wireless device supports cell DTX or cell DRX operation.

21. The method according to claim 19, wherein the UE-specific message comprises at least one of the following: RRC message; MAC CE message; or A UE-specific DCI message targeted to the wireless device.

22. The method of claim 19, wherein receiving the indicator indicating whether the cell discontinuous operation is activated in the cell comprises: When the wireless device is in one of the following procedures: an RRC connection establishment procedure, or a handover procedure in which the wireless device is handed over from a source cell to the cell, the indicator indicating whether the cell discontinuous operation is activated in the cell is received via the UE-specific message targeted at the wireless device.

23. The method of claim 19, wherein: Receiving the indicator indicating whether the cell discontinuous operation is activated in the cell comprises: receiving, via the UE-specific message targeted to the wireless device, a candidate configuration list for cell discontinuous operation and the indicator indicating whether a configuration in the candidate configuration list is activated; and Activating the configuration associated with the discontinuous operation of the cell includes: In response to the indicator indicating that the configuration in the candidate configuration list is activated, activating the configuration.

24. The method of claim 19, wherein the configuration associated with the cell discontinuous operation comprises at least one of the following parameters: Cell DTX cycle parameters used to determine the cell DTX "on" period and the cell DTX "off" period; A cell DTX start time parameter for determining the cell DTX "on" period and the cell DTX "off" period; A cell DTX start offset parameter for determining the cell DTX "on" period and the cell DTX "off" period; Cell DRX cycle parameters used to determine cell DRX "on" period and cell DRX "off" period; A cell DRX start time parameter used to determine the cell DRX "on" period and the cell DRX "off" period; or The cell DRX start offset parameter is used to determine the cell DRX "on" period and the cell DRX "off" period.

25. The method of claim 19, wherein activating the configuration associated with discontinuous operation of the cell comprises disabling at least one of: receiving a downlink signal or a downlink channel during a cell DTX off period; or An uplink signal or an uplink channel is transmitted during the cell DRX off period.

26. A method for wireless communication, performed by a network node, comprising: Sending a first message to a wireless device, the first message including a first connected state discontinuous reception (DRX) configuration or an indicator indicating the first connected state DRX configuration, wherein the first connected state DRX configuration is assigned to a first target associated with a first service of the wireless device, the first target including one of the following: Data Radio Bearer (DRB); Logical channels; Semi-persistent scheduling (SPS); Configuration Grant (CG); or Hybrid Automatic Repeat Request (HARQ) process.

27. The method according to claim 26, wherein the connected DRX configuration comprises at least one of the following parameters for downlink or uplink data retransmission: drx-RetransmissionTimerDL; drx-RetransmissionTimerUL; drx-HARQ-RTT-TimerDL; or drx-HARQ-RTT-TimerUL.

28. The method of claim 26, wherein: The first message further includes a second connection state DRX configuration or an indicator indicating the second connection state DRX configuration; The second connected state DRX configuration is assigned to a second target associated with a second service of the wireless device; the second objective is different from the first objective; as well as The second connection state DRX configuration is different from the first connection state DRX configuration.

29. The method of claim 26, wherein the indicator indicates the first connected-mode DRX configuration from a connected-mode DRX configuration list.

30. The method of claim 29, wherein the connected DRX configuration list is pre-configured to the wireless device via one of the following: RRC message; MAC CE message; system information messages; or Broadcast message.

31. The method of claim 26, wherein the first connected-state DRX configuration has a higher priority than a cell-level connected-state DRX configuration.

32. The method of claim 26, wherein the network node comprises at least one of: gNodeB(gNB); eNodeB (eNB); ng-eNodeB (ng-eNB); or NodeB.

33. A method for wireless communication, performed by a network node, comprising: receiving, from a wireless device, an indicator indicating a radio capability of the wireless device, the radio capability indicating whether the wireless device supports HARQ Mode B when a serving cell of the wireless device is a terrestrial network cell, wherein in the HARQ Mode B, a HARQ round trip time (RTT) timer and a HARQ retransmission timer are not started; and A HARQ mode indicator is sent to the wireless device served by the terrestrial network cell, indicating that the wireless device applies the HARQ mode B.

34. The method of claim 33, wherein: The radio capability further indicates whether the wireless device supports a HARQ mechanism in which the HARQ Mode B or HARQ Mode A may be configured for the wireless device; and In the HARQ mode A, starting the HARQ RTT timer and the HARQ retransmission timer is allowed.

35. The method of claim 33, wherein the indicator is carried via at least one of: Radio Resource Control (RRC) Msg 3; RRC Msg 5; UECapabilityInformation message; Uplink Medium Access Control - Control Element (UL MAC CE) message; or Uplink Logical Channel Identifier (UL LC-ID) in the MAC CE message header.

36. The method of claim 33, wherein the HARQ mode indicator instructs the wireless device to apply the HARQ Mode B to a transmission level, the transmission level comprising at least one of: Per wireless device level; Each DRB level; Per logical channel level; Per SPS level; per CG level; or Per HARQ process level.

37. The method of claim 36, wherein the HARQ mode indicator is sent via at least one of: RRC message; MAC CE message; Downlink Control Information (DCI) message; or Uplink HARQ feedback disabled indicator.

38. The method of claim 36, wherein based on the HARQ mode indicator, the wireless device is not expected to start the HARQ RTT timer for a HARQ process associated with the transmission level.

39. A method for wireless communication, performed by a network node, comprising: sending a first message to a wireless device instructing the wireless device to deactivate a DRX HARQ round trip time timer (drx-HARQ-RTT-Timer), wherein the drx-HARQ-RTT-Timer applies to a target for the wireless device, and the target comprises one of the following: Data Radio Bearer (DRB); Logical channels; Semi-persistent scheduling (SPS); Configuration Grant (CG); or Hybrid Automatic Repeat Request (HARQ) process.

40. The method of claim 39, wherein before sending the first message, the method further comprises: An indicator is received from the wireless device indicating radio capabilities of the wireless device, the radio capabilities indicating whether the wireless device supports DRX HARQ RTT timer deactivation.

41. The method of claim 39, wherein in response to receiving the first message, the wireless device is not expected to start the drx-HARQ-RTT-Timer associated with the target.

42. The method according to claim 39, wherein the drx-HARQ-RTT-Timer comprises at least one of the following: Uplink drx-HARQ-RTT-Timer; or Downlink drx-HARQ-RTT-Timer.

43. The method of claim 39, wherein the first message is sent via one of: RRC message; MAC CE message; DCI message; or An indicator indicating that uplink HARQ feedback is disabled for the target.

44. A method for wireless communication, performed by a network node, comprising: An indicator indicating whether a cell discontinuous operation is activated in a cell of the network node is sent via a UE-specific message targeted to a wireless device, wherein the cell discontinuous operation includes at least one of cell discontinuous transmission (DTX) or cell discontinuous reception (DRX).

45. The method of claim 44, wherein prior to receiving the UE-specific message targeted to the wireless device, the method further comprises: An indicator is received from the wireless device indicating radio capabilities of the wireless device, the radio capabilities indicating whether the wireless device supports cell DTX or cell DRX operation.

46. ​​The method of claim 44, wherein in response to the indicator indicating that the cell discontinuous operation is activated in the cell, the wireless device activates a configuration associated with the cell discontinuous operation.

47. The method of claim 46, wherein the configuration associated with the cell discontinuous operation comprises at least one of the following parameters: Cell DTX cycle parameters used to determine the cell DTX "on" period and the cell DTX "off" period; A cell DTX start time parameter for determining the cell DTX "on" period and the cell DTX "off" period; A cell DTX start offset parameter for determining the cell DTX "on" period and the cell DTX "off" period; Cell DRX cycle parameters used to determine cell DRX "on" period and cell DRX "off" period; A cell DRX start time parameter used to determine the cell DRX "on" period and the cell DRX "off" period; or The cell DRX start offset parameter is used to determine the cell DRX "on" period and the cell DRX "off" period.

48. The method of claim 44, wherein the UE-specific message comprises at least one of: RRC message; MAC CE message; or A UE-specific DCI message targeted to the wireless device.

49. The method of claim 44, wherein sending the indicator indicating whether the cell discontinuous operation is activated in the cell comprises: When the wireless device is in one of the following procedures: an RRC connection establishment procedure, or a handover procedure in which the wireless device is handed over from a source cell to the cell, the indicator indicating whether the cell discontinuous operation is activated in the cell is sent via the UE-specific message targeted at the wireless device.

50. The method of claim 44, wherein: The sending of the indicator indicating whether the cell discontinuous operation is activated in the cell comprises: A candidate configuration list for cell discontinuous operation and the indicator indicating whether a configuration in the candidate configuration list is activated are sent via the UE-specific message targeted to the wireless device.

51. The method of claim 44, wherein: The indicator indicates that the cell discontinuous operation is activated in the cell of the network node; and The method further includes disabling at least one of the following: sending a downlink signal or a downlink channel during a cell DTX off period; or An uplink signal or an uplink channel is received during the cell DRX off period.

52. A device for wireless communication, comprising a memory for storing computer instructions and a processor in communication with the memory, wherein when the processor executes the computer instructions, the processor is configured to implement the method according to any one of claims 1-51.

53. A computer program product comprising a non-transitory computer readable program medium having computer code stored thereon, the computer code, when executed by one or more processors, causing the one or more processors to implement the method according to any one of claims 1-51.

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