Systems and methods for determining downlink control information

Abstract

A system and method providing a mechanism for determining control information, such as PDSCH scheduling delay and / or HARQ-ACK delay. The system and method include receiving, by a wireless communication device from a wireless communication node, a control signal indicating one of a plurality of physical downlink shared channel (PDSCH) scheduling delays and one of a plurality of hybrid automatic repeat request-acknowledgement (HARQ-ACK) delays; receiving, by the wireless communication device from the wireless communication node, a PDSCH based on the PDSCH scheduling delay; and transmitting, by the wireless communication device to the wireless communication node, a HARQ-ACK corresponding to the received PDSCH based on the HARQ-ACK delay.

Description

Technical Field

[0001] This disclosure relates generally to wireless communications, and more particularly to systems and methods for determining downlink control information. Background Technology

[0002] The standards organization 3GPP is currently specifying a new radio interface called 5G New Radio (5GNR). With the development of 5G NR, a wider range of use cases, including massive machine-type communication (MTC), can be enabled. The MTC Physical Downlink Control Channel (MPDCCH) is a special type of PDCCH designed for bandwidth-reduced operations. Summary of the Invention

[0003] The exemplary embodiments disclosed herein relate to solving one or more problems presented in the prior art, and provide additional features that will become apparent when taken in conjunction with the accompanying drawings and the following detailed description. Exemplary systems, methods, apparatuses, and computer program products are disclosed herein according to various embodiments. However, it should be understood that these embodiments are presented by way of example and are not limiting, and that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure, as will be apparent to those skilled in the art who have read this disclosure.

[0004] In one embodiment, a method includes a wireless communication device (e.g., Figure 3 UE 304 in the text) from the wireless communication node (e.g., Figure 3 In BS 302, a control signal is received indicating one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and one of a plurality of Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) delays. In some embodiments, the method includes receiving a PDSCH from a wireless communication node based on the PDSCH scheduling delay by the wireless communication device. In some embodiments, the method includes sending a HARQ-ACK corresponding to the received PDSCH to the wireless communication node based on the HARQ-ACK delay by the wireless communication device.

[0005] In some embodiments, the control signal includes a first field and a second field configured to jointly indicate a combination of physical PDSCH scheduling delay and / or HARQ-ACK delay, the first field having 1 bit and the second field having 3 bits.

[0006] In some embodiments, the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, or {7,13}.

[0007] In some embodiments, the control signal includes a field configured to indicate a combination of physical PDSCH scheduling delay and HARQ-ACK delay, the field having 4 bits.

[0008] In some embodiments, the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, or {7,13}.

[0009] In some embodiments, the wireless communication device includes a half-duplex user equipment.

[0010] In another embodiment, a method includes receiving from a wireless communication node a control signal indicating one of a plurality of Hybrid Automatic Repeat Request (HARQ) process numbers, one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays, and / or one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes receiving a PDSCH from the wireless communication node by the wireless communication device based on the PDSCH scheduling delay. In some embodiments, the method includes sending a HARQ-ACK corresponding to the PDSCH to the wireless communication node by the wireless communication device based on the HARQ-ACK delay.

[0011] In some embodiments, the control signal includes a HARQ process field and a HARQ-ACK delay field configured to jointly indicate a combination of HARQ process number, PDSCH scheduling delay, and / or HARQ-ACK delay.

[0012] In some embodiments, the combination is selected from at least one of the following: {10,2,4}, {10,2,5}, {10,2,6}, {10,2,7}, {10,2,8}, {10,2,9}, {10,2,10}, {10,2,11}, {10,2,13}, {10,2,15}, {10,2,17}, {10,7,12}, {10,7,13}, {10 {10,7,15}, {11,2,4}, {11,2,5}, {11,2,6}, {11,2,7}, {11,2,8}, {11,2,9}, {11,2,10}, {11,2,11}, {11,2,13}, {11,2,15}, {11,2,17}, {11,7,12}, {11,7,13}, {11,7,14} {11,7,15}, {12,2,4}, {12,2,5}, {12,2,6}, {12,2,7}, {12,2,8}, {12,2,9}, {12,2,10}, {12,2,11}, {12,2,13}, {12,2,15}, {12,2,17}, {12,7,12}, {12,7,13}, {12,7,14}, {12, 7,15}、{13,2,4}、{13,2,5}、{13,2,6}、{13,2,7}、{13,2,8}、{13,2,9}、{13,2,10}、{13,2,11}、{13,2,13}、{13,2,15}、{13,2,17}、{13,7,12}、{13,7,13}、{13,7,14}、{13,7,15}.

[0013] In some embodiments, the wireless communication device includes a half-duplex user equipment.

[0014] In another embodiment, a method includes receiving, by a wireless communication device, a control signal from a wireless communication node indicating one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes receiving a Physical Downlink Shared Channel (PDSCH) from the wireless communication node by the wireless communication device. In some embodiments, the method includes sending a HARQ-ACK corresponding to the received PDSCH to the wireless communication node at a timing determined based on the HARQ-ACK delay indicated in the control signal.

[0015] In some embodiments, the control signal includes a 4-bit field configured to indicate a HARQ-ACK delay.

[0016] In some embodiments, the HARQ-ACK delay is selected from the following: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15.

[0017] In some embodiments, the control signal includes a first field of 3 bits and a second field of 1 bit configured to jointly indicate the HARQ-ACK delay.

[0018] In some embodiments, the HARQ-ACK delay is selected from the following: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15.

[0019] In some embodiments, the control signal includes a field of up to 4 bits configured to indicate a HARQ-ACK delay.

[0020] In some embodiments, the HARQ-ACK delay is selected from one of up to 16 values ​​assigned in higher-level signaling.

[0021] In some embodiments, when the received PDSCH is located in a first time slot, the HARQ-ACK delay is selected from one of a first set of values, and when the received PDSCH is located in a second time slot, the HARQ-ACK delay is selected from one of a second set of values.

[0022] In some embodiments, the index of the first time slot is at least one of the following: odd, equal to or less than a threshold, all time slots corresponding to odd-numbered frames, or a predefined time slot, and the index of the second time slot is at least one of the following: even, greater than a threshold, all time slots corresponding to even-numbered frames, or a predefined time slot.

[0023] In some embodiments, when the received PDSCH is associated with a first HARQ process, the HARQ-ACK delay is selected from a first set of values. In some embodiments, when the received PDSCH is associated with a second HARQ process, the HARQ-ACK delay is selected from a second set of values.

[0024] In some embodiments, the index of the first HARQ process is at least one of the following: odd, equal to or less than a threshold, or a predefined HARQ process. In some embodiments, the index of the second HARQ process is at least one of the following: even, greater than a threshold, or a predefined HARQ process.

[0025] In some embodiments, when the control signal is allocated to a first control resource set, the HARQ-ACK delay is selected from a first set of values, and when the control signal is allocated to a second control resource set, the HARQ-ACK delay is selected from a second set of values.

[0026] In some embodiments, the index of the first control resource set is at least one of the following: odd number, or a predefined control resource set. In some embodiments, the index of the second control resource set is even number, or a predefined control resource set.

[0027] In some embodiments, the first set of values ​​is configured or predefined by higher-level signaling, and the second set of values ​​is configured or predefined by higher-level signaling.

[0028] In another embodiment, a method includes a wireless communication node sending a control signal to a wireless communication device indicating one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and / or one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes the wireless communication node sending a PDSCH to the wireless communication device.

[0029] In some embodiments, the method includes a wireless communication node receiving a HARQ-ACK corresponding to a transmitted PDSCH from a wireless communication device.

[0030] In some embodiments, the control signal includes a first field and a second field configured to jointly indicate a combination of PDSCH scheduling delay and HARQ-ACK delay, the first field having 1 bit and the second field having 3 bits.

[0031] In some embodiments, the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, or {7,13}.

[0032] In some embodiments, the control signal includes a field having 4 bits that is configured to indicate a combination of PDSCH scheduling delay and / or HARQ-ACK delay.

[0033] In some embodiments, the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, or {7,13}.

[0034] In some embodiments, the wireless communication device includes a half-duplex user equipment.

[0035] In another embodiment, a method includes a wireless communication node sending a control signal to a wireless communication device indicating one of a plurality of Hybrid Automatic Repeat Request (HARQ) process numbers, one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays, and / or one of a plurality of Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) delays.

[0036] In some embodiments, the method includes sending a PDSCH from a wireless communication node to a wireless communication device. In some embodiments, the method includes receiving a HARQ-ACK corresponding to the sent PDSCH from the wireless communication device by the wireless communication node.

[0037] In some embodiments, the control signal includes a HARQ process field and / or a HARQ-ACK delay field configured to jointly indicate a combination of HARQ process number, PDSCH scheduling delay, and / or HARQ-ACK delay.

[0038] In some embodiments, the combination is selected from at least one of the following: {10,2,4}, {10,2,5}, {10,2,6}, {10,2,7}, {10,2,8}, {10,2,9}, {10,2,10}, {10,2,11}, {10,2,13}, {10,2,15}, {10,2,17}, {10,7,12}, {10,7,13}, {10 {10,7,15}, {11,2,4}, {11,2,5}, {11,2,6}, {11,2,7}, {11,2,8}, {11,2,9}, {11,2,10}, {11,2,11}, {11,2,13}, {11,2,15}, {11,2,17}, {11,7,12}, {11,7,13}, {11,7,14} {11,7,15}, {12,2,4}, {12,2,5}, {12,2,6}, {12,2,7}, {12,2,8}, {12,2,9}, {12,2,10}, {12,2,11}, {12,2,13}, {12,2,15}, {12,2,17}, {12,7,12}, {12,7,13}, {12,7,14}, {12, 7,15}、{13,2,4}、{13,2,5}、{13,2,6}、{13,2,7}、{13,2,8}、{13,2,9}、{13,2,10}、{13,2,11}、{13,2,13}、{13,2,15}、{13,2,17}、{13,7,12}、{13,7,13}、{13,7,14}、{13,7,15}.

[0039] In some embodiments, the wireless communication device includes a half-duplex user equipment.

[0040] In another embodiment, a method includes sending a control signal from a wireless communication node to a wireless communication device indicating one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes sending a Physical Downlink Shared Channel (PDSCH) from the wireless communication node to the wireless communication device. In some embodiments, the method includes receiving a HARQ-ACK from the wireless communication node to the wireless communication device corresponding to the sent PDSCH.

[0041] In some embodiments, the control signal includes a 4-bit field configured to indicate a HARQ-ACK delay.

[0042] In some embodiments, the HARQ-ACK delay is selected from the following: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15.

[0043] In some embodiments, the control signal includes a first field of 3 bits and / or a second field of 1 bit configured to jointly indicate the HARQ-ACK delay.

[0044] In some embodiments, the HARQ-ACK delay is selected from the following: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15.

[0045] In some embodiments, the control signal includes a field of up to 4 bits configured to indicate a HARQ-ACK delay.

[0046] In some embodiments, the HARQ-ACK delay is selected from one of up to 16 values ​​assigned in higher-level signaling.

[0047] In some embodiments, when the received PDSCH is located in a first time slot, the HARQ-ACK delay is selected from one of a first set of values, and when the received PDSCH is located in a second time slot, the HARQ-ACK delay is selected from one of a second set of values.

[0048] In some embodiments, the index of the first time slot is at least one of the following: odd, equal to or less than a threshold, all time slots corresponding to odd-numbered frames, or a predefined time slot. In some embodiments, the index of the second time slot is at least one of the following: even, greater than a threshold, all time slots corresponding to even-numbered frames, or a predefined time slot.

[0049] In some embodiments, when the received PDSCH is associated with a first HARQ process, the HARQ-ACK delay is selected from a first set of values, and when the received PDSCH is associated with a second HARQ process, the HARQ-ACK delay is selected from a second set of values.

[0050] In some embodiments, the index of the first HARQ process is at least one of the following: odd, equal to or less than a threshold, or a predefined HARQ process. In some embodiments, the index of the second HARQ process is at least one of the following: even, greater than a threshold, or a predefined HARQ process.

[0051] In some embodiments, when a control signal is assigned to a first control resource set, the HARQ-ACK delay is selected from a first set of values; when a control signal is assigned to a second control resource set, the HARQ-ACK delay is selected from a second set of values. In some embodiments, the index of the first control resource set is at least one of the following: odd number, or a predefined control resource set. In some embodiments, the index of the second control resource set is even number, or a predefined control resource set.

[0052] In some embodiments, the first set of values ​​is configured or predefined by higher-level signaling, and / or the second set of values ​​is configured or predefined by higher-level signaling.

[0053] The above and other aspects and their embodiments are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0054] Various exemplary embodiments of this solution are described in detail below with reference to the figures or accompanying drawings. The drawings are provided for illustrative purposes only and merely depict exemplary embodiments of the solution to aid the reader's understanding. Therefore, the drawings should not be considered as limitations on the breadth, scope, or applicability of this solution. It should be noted that these drawings are not necessarily drawn to scale for clarity and ease of explanation.

[0055] Figure 1 An example table is shown showing the number (k) of time slots relative to the PDSCH-to-HARQ_feedback timing indicators according to embodiments of the present disclosure.

[0056] Figure 2A An example table of HARQ-ACK feedback delay values ​​transmitted in uplink subframes according to embodiments of the present disclosure is shown.

[0057] Figure 2BAn example table of HARQ-ACK feedback delay values ​​transmitted in two uplink subframes according to embodiments of the present disclosure is shown.

[0058] Figure 3 An example wireless communication network and / or system 300, in which the techniques disclosed herein may be implemented, is shown according to embodiments of the present disclosure.

[0059] Figure 4 A block diagram of an example wireless communication system 400 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of the present disclosure is shown.

[0060] Figure 5 An example table showing the scheduling delay between MPDCCH and PDSCH according to a conventional embodiment is provided.

[0061] Figure 6 An example table of HARQ-ACK delays according to a conventional embodiment is shown.

[0062] Figure 7 An example table of HARQ-ACK delays according to a conventional embodiment is shown.

[0063] Figure 8 An example table of feedback delays for HARQ-ACK delays according to a conventional embodiment is shown.

[0064] Figure 9 An example table of HARQ-ACK feedback delay values ​​transmitted in uplink subframes according to embodiments of the present disclosure is shown.

[0065] Figure 10 An example table of feedback delays for HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0066] Figure 11 An example table of HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0067] Figure 12 An example table of feedback delays for HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0068] Figure 13 An example table of feedback delays for HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0069] Figure 14 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure.

[0070] Figure 15This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure.

[0071] Figure 16 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure.

[0072] Figure 17 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure.

[0073] Figure 18 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure.

[0074] Figure 19 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Detailed Implementation

[0075] Various exemplary embodiments of this solution are described below with reference to the accompanying drawings to enable those skilled in the art to create and use this solution. As will be apparent to those skilled in the art, various changes or modifications can be made to the examples described herein after reading this disclosure without departing from the scope of this solution. Therefore, this solution is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein is merely an example method. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of this solution. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in a sample order, and this solution is not limited to the presented specific order or hierarchy, unless otherwise expressly stated.

[0076] The following abbreviations are used in this disclosure:

[0077] 3GPP Third Generation Partner Program

[0078] 5G fifth-generation mobile network

[0079] 5G-AN 5G Access Network

[0080] 5G gNB Next-Generation NodeB

[0081] DCI Downlink Control Information

[0082] DL downlink (or Down Link)

[0083] HARQ-ACK Hybrid Automatic Repeat Request - Acknowledgement

[0084] MAC Media Access Control

[0085] MPDCCH MTC Physical Downlink Control Channel

[0086] MTC Machine Type Communication

[0087] NR Next Generation RAN

[0088] PDCCH (Physical Downlink Control Channel)

[0089] PDSCH (Physical Downlink Shared Channel)

[0090] PUCCH (Physical Uplink Control Channel)

[0091] PUSCH Physical Uplink Shared Channel

[0092] RAN (Radio Access Network)

[0093] RRC (Radio Resource Control)

[0094] UE User Equipment

[0095] UL Uplink (Up Link or Uplink)

[0096] In Rel-17 Machine Type Communication (MTC) systems, for half-duplex terminals, the downlink (DL) needs to support 14 HARQ processes; however, specific instructions are not given regarding the Physical Downlink Shared Channel (PDSCH) scheduling delay and HARQ-ACK feedback delay. In NR systems, for DCI format 1_0 scheduling, the HARQ-ACK feedback delay field is 3 bits, with values ​​{1, 2, 3, 4, 5, 6, 7, 8}. In NR systems, for DCI format 1_1 scheduling, the HARQ-ACK feedback delay field is 0, 1, 2, or 3 bits, depending on the number of values ​​configured by higher layers.

[0097] For example, Figure 1 An example table is shown showing the number (k) of time slots relative to the PDSCH-HARQ feedback timing indicator according to an embodiment of the present disclosure. As shown, dl-DataToUL-ACK corresponds to SEQUENCE (SIZE(1...8)) of INTEGER (0...15). That is, up to 8 values ​​can be configured in {0 to 15}.

[0098] For half-duplex UEs, to ensure peak data rates, a HARQ-ACK feedback delay value is needed to guarantee the transmission of multiple downlink PDSCH feedbacks within the same subframe. For example, Figure 2A An example table of HARQ-ACK feedback delay values ​​transmitted in uplink subframes according to embodiments of the present disclosure is shown. As shown, the PDSCH corresponding to all 16 HARQ processes can be fed back at U0.

[0099] As another example, Figure 2B An example table of HARQ-ACK feedback delay values ​​transmitted in two uplink subframes according to embodiments of the present disclosure is shown. As shown, table 200B includes a first downlink group 202B and a second downlink group 204B. In some embodiments, the first downlink group 202B may be transmitted to U0, and the second downlink group 202B may be transmitted to U1.

[0100] However, as Figure 2A and Figure 2B As shown, the scheduling delay field in the existing DCI indicates a maximum of 8 values, which cannot satisfy all feedback scenarios. Therefore, conventional 5G NR systems cannot flexibly support HARQ-ACK delay feedback to ensure downlink peak data rates.

[0101] Therefore, the systems and methods discussed in this paper provide mechanisms for determining control information such as PDSCH scheduling delay and / or HARQ-ACK feedback delay.

[0102] Typically, as discussed in more detail below, UE (e.g., Figure 3 UE 304 in the BS (e.g., Figure 3 The BS 302 in the UE receives a PDSCH scheduling delay (e.g., the time difference between the end slot / subframe of the DCI (Control Information / Signal) and the corresponding PDSCH) and a HARQ-ACK delay (e.g., the time difference between the end slot / subframe of the PDSCH and the corresponding ACK / NACK feedback). The UE can use the PDSCH scheduling delay to determine (e.g., detection, identification, calculation, etc.) where and / or when to receive the PDSCH. Afterward, the UE can receive the PDSCH. Based on the HARQ-ACK delay, the UE can transmit (e.g., send, deliver, broadcast, etc.) an ACK / NACK feedback corresponding to the received PDSCH.

[0103] 1. Mobile Communication Technology and Environment

[0104] Figure 3An example wireless communication network and / or system 300, in which the technologies disclosed herein may be implemented, is illustrated according to embodiments of the present disclosure. In the following discussion, the wireless communication network 300 may be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 300". Such an example network 300 includes base stations 302 (hereinafter referred to as "BS 302"; also referred to as wireless communication nodes) and user equipment devices 304 (hereinafter referred to as "UE 304"; also referred to as wireless communication devices) capable of communicating with each other via communication links 310 (e.g., wireless communication channels), and a cluster of cells 326, 330, 332, 334, 336, 338, and 340 covering a geographic area 301. Figure 3 In this context, BS 302 and UE 304 are contained within the corresponding geographical boundaries of cell 326. Each of the other cells 330, 332, 334, 336, 338, and 340 may include at least one base station operating within its allocated bandwidth to provide sufficient radio coverage to its intended users.

[0105] For example, BS 302 can operate within the allocated channel transmission bandwidth to provide sufficient coverage to UE 304. BS 302 and UE 304 can communicate via downlink radio frame 318 and uplink radio frame 324, respectively. Each radio frame 318 / 324 can also be divided into subframes 320 / 327, which may include data symbols 322 / 328. In this disclosure, BS 302 and UE 304 are described herein as non-limiting examples of "communication nodes" that can generally be practiced with the methods disclosed herein. According to various embodiments of the present solution, such communication nodes are capable of wireless and / or wired communication.

[0106] Figure 4 A block diagram of an example wireless communication system 400 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of the present disclosure is shown. System 400 may include components and elements configured to support known or conventional operating features that do not need to be described in detail herein. In one illustrative embodiment, system 400 may be used in applications such as... Figure 3 In the wireless communication environment 300, communication transmission (e.g., sending and receiving) of data symbols is performed as described above.

[0107] System 400 typically includes a base station 402 (hereinafter referred to as "BS 402") and a user equipment unit 404 (hereinafter referred to as "UE 404"). BS 402 includes a BS (Base Station) transceiver module 410, a BS antenna 412, a BS processor module 414, a BS memory module 416, and a network communication module 418, each module being coupled and interconnected as needed via a data communication bus 420. UE 404 includes a UE (User Equipment) transceiver module 430, a UE antenna 432, a UE memory module 434, and a UE processor module 436, each module being coupled and interconnected as needed via a data communication bus 440. BS 402 communicates with UE 404 via a communication channel 450, which can be any wireless channel or other medium suitable for the data transmission described herein.

[0108] As will be understood by those skilled in the art, system 400 may also include, in addition to Figure 4 Any number of modules other than those shown herein. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate the interchangeability and compatibility of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps are generally described according to their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend on the specific application and design constraints imposed on the system as a whole. Those skilled in the art described herein can implement such functionality in a manner suitable for each specific application; however, such implementation decisions should not be construed as limiting the scope of this disclosure.

[0109] According to some embodiments, UE transceiver 430, referred to herein as "uplink" transceiver 430, includes a radio frequency (RF) transmitter and an RF receiver, each comprising circuitry coupled to antenna 432. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, BS transceiver 410, referred herein as "downlink" transceiver 410, includes an RF transmitter and an RF receiver, each comprising circuitry coupled to antenna 412. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to downlink antenna 212 in a time-duplex manner. The operation of the two transceiver modules 410 and 430 may be time-coordinated such that the uplink receiver is coupled to uplink antenna 432 for receiving transmissions via wireless transmission link 450 while the downlink transmitter is coupled to downlink antenna 412. Conversely, the operation of the two transceivers 410 and 430 can be time-coordinated, such that the downlink receiver is coupled to the downlink antenna 412 to receive transmissions on the wireless transmission link 450 while the uplink transmitter is coupled to the uplink antenna 432. In some embodiments, near-synchronous timing exists with minimal guard time between changes in duplex direction.

[0110] UE transceiver 430 and base transceiver 410 are configured to communicate via wireless data communication link 450 and cooperate with RF antenna devices 412 / 432 appropriately configured to support specific wireless communication protocols and modulation schemes. In some illustrative embodiments, UE transceiver 410 and base transceiver 410 are configured to support industry standards such as Long Term Evolution (LET) and emerging 5G standards. However, it should be understood that this disclosure is not necessarily limited in application to specific standards and associated protocols. Rather, UE transceiver 430 and base transceiver 410 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0111] According to various embodiments, BS 402 may be, for example, an evolved Node B (eNB), a serving BS, a target BS, a femtocell, or a picocell. In some embodiments, UE 404 may be embodied in various types of UEs, such as mobile phones, smartphones, personal digital assistants (PDAs), tablets, laptops, wearable computing devices, etc. Processor modules 414 and 436 may be implemented or realized using a general-purpose processor, content-addressable memory, digital signal processor, application-specific integrated circuit, field-programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. In this way, the processor may be implemented as a microprocessor, a controller, a microcontroller, a state machine, etc. The processor may also be implemented as a combination of computing devices, such as a combination of a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other such configuration.

[0112] Furthermore, the steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly in hardware, firmware, software modules executed by processor modules 414 and 436 respectively, or any practical combination thereof. Memory modules 416 and 434 can be implemented as RAM memory, flash memory, ROM read-only memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this respect, memory modules 416 and 434 can be coupled to processor modules 410 and 430 respectively, such that processor modules 410 and 430 can read information from and write information to memory modules 416 and 434 respectively. Memory modules 416 and 434 can also be integrated into their respective processor modules 410 and 430. In some embodiments, memory modules 416 and 434 may each include a cache memory for storing temporary variables or other intermediate information during the execution of instructions to be executed by processor modules 410 and 430 respectively. Memory modules 416 and 434 may each include non-volatile memory for storing instructions to be executed by processor modules 410 and 430, respectively.

[0113] Network communication module 418 typically represents the hardware, software, firmware, processing logic, and / or other components for bidirectional communication between the base transceiver 410 of BS 402 and other network components and communication nodes configured to communicate with base station 402. For example, network communication module 418 may be configured to support Internet or WiMAX services. In a typical deployment, but not limited to, network communication module 418 provides an 802.3 Ethernet interface, enabling base transceiver 410 to communicate with conventional Ethernet-based computer networks. In this way, network communication module 418 may include a physical interface for connecting to a computer network (e.g., a Mobile Switching Center (MSC)). The terms “configured for,” “configured to,” and variations thereof, as used herein with respect to a particular operation or function, refer to devices, components, circuits, structures, machines, signals, etc., that are physically constructed, programmed, formatted, and / or arranged to perform a particular operation or function.

[0114] The Open Systems Interconnection (OSI) model (referred to herein as the "OSI model") is a conceptual and logical layout that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) that are open to interconnection and communication with other systems. The model is divided into seven sub-components or layers, each representing a set of concepts providing services to the layers above and below it. The OSI model also defines logical networks and efficiently describes computer packet transmission using different layer protocols. The OSI model may also be referred to as the seven-layer OSI model or the seven-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the Media Access Control (MAC) layer. In some embodiments, the third layer may be the Radio Link Control (RLC) layer. In some embodiments, the fourth layer may be the Packet Data Convergence Protocol (PDCP) layer. In some embodiments, the fifth layer may be the Radio Resource Control (RRC) layer. In some embodiments, the sixth layer may be the Non-Access (NSA) layer or the Internet Protocol (IP) layer, and the seventh layer is another layer.

[0115] 2. Overview of Machine Type Communication (MTC)

[0116] Machine-type communication (MTC) is currently the primary application form of the Internet of Things (IoT). Most MTC devices deployed in the market are based on the Global System for Mobile Communications (GSM). In recent years, due to the high spectrum efficiency of LTE / LTE-A (LTE-Advanced), more and more mobile operators are choosing LTE / LTE-A as the evolution direction for their future broadband wireless communication systems; MTC multi-data services based on LTE / LTE-A will also become more attractive.

[0117] To support higher data rate (MTC) applications, the terminal (User Equipment, or UE) needs to support new functions; half-duplex-frequency division duplex (HD-FDD) UEs need to support up to 10 Hybrid Automatic Repeat Request (HARQ)-ACK (acknowledgment) processes, such as... Figure 5 As shown.

[0118] Figure 5 An example table showing the scheduling delay between MPDCCH and PDSCH according to a conventional embodiment is provided. In some embodiments, the scheduling delay between MPDCCH and PDSCH may be fixed at 2.

[0119] Figure 6 An example table of HARQ-ACK delays according to a conventional embodiment is shown.

[0120] In some embodiments, the group of HARQ-ACK delays can be selected via the higher-layer signaling ce-SchedulingEnhancement configuration. In some embodiments, the specific timing of a control field (“field”) can be controlled by the HARQ-ACK delay in the downlink control information (DCI).

[0121] For indication schemes that support 14 HARQ processes, such as PDSCH scheduling delay and HARQ acknowledgment delay, conventional 5G NR systems provide two solutions.

[0122] In the "first solution," if the value indicated by the HARQ process ID is less than 10, then BS (e.g., Figure 3 BS302 in (and / or UE (e.g., Figure 3UE 304 determines the HARQ process number based on the existing process and HARQ-ACK delay, and the PDSCH scheduling delay is fixed at 2. Otherwise, BS 302 and / or UE 304 determine the HARQ-ACK process index and PDSCH delay based on the HARQ-ACK delay field in the DCI. For example, Figure 7 An example table of HARQ-ACK delays according to a conventional embodiment is shown.

[0123] The HARQ process control field in DCI is used to indicate the HARQ acknowledgment delay. For example, Figure 8 An example table showing the feedback delay of HARQ-ACK according to a conventional embodiment is provided.

[0124] However, the solution used in conventional 5G NR systems has drawbacks. First, the meanings of the HARQ process number field and the HARQ-ACK delay field differ when the number of processes varies, which increases the UE's (e.g., Figure 3 The complexity of UE 304 in the context of UE.

[0125] Second, the supported HARQ-ACK latency values ​​can be {4, 5, 7, 9, 11, 13}. Not all HARQ-ACK latency values ​​are supported, which limits the configuration of the HARQ-ACK binding window. Figure 9 As shown.

[0126] Figure 9 An example table of HARQ-ACK feedback delay values ​​transmitted in an uplink subframe according to an embodiment of this disclosure is shown. As shown, Table 900 includes a first PDSCH group 902, a second PDSCH group 904, and a third PDSCH group 906. The first PDSCH group 902 can be sent to U0, the second PDSCH group 904 to U1, and the third PDSCH group 906 to U2. However, conventional 5G NR systems do not support transmitting HARQ-ACK corresponding to the PDSCH in the same subframe (e.g., sending the first PDSCH group 902 to U0, etc.). Therefore, the bundling window is limited to a certain extent, thus restricting scheduling flexibility and making it impossible to guarantee the downlink peak data rate.

[0127] In the "second solution," BS 302 and / or UE 304 can add one bit to the DCI to indicate whether the PDSCH delay is 2 or 7. The value of the HARQ-ACK delay is still indicated by the HARQ-ACK delay field in the DCI. For example, Figure 10 An example table of feedback delays for HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0128] like Figure 9 and Figure 10 As shown, Tables 900 and 1000 do not include all HARQ-ACK feedback delay values. This means that when HARQ-ACKs are bundled for transmission, the bundling window cannot be configured flexibly, thus failing to guarantee the downlink peak data rate.

[0129] Accordingly, in R17, NR systems need to support HD-FDD UEs. Since R17 has not yet been discussed, there is no solution provided by conventional 5G NR systems.

[0130] 4. Determine control information

[0131] 4.1 One or more example embodiments – Group 1

[0132] From the perspective of UE:

[0133] In some embodiments, UE 304 may receive downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK delay, etc.).

[0134] In some embodiments, UE 304 may determine the PDSCH scheduling delay and / or the corresponding HARQ-ACK feedback delay based on the first control field (“field”) in the downlink control information.

[0135] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0136] In some embodiments, the determined PDSCH scheduling delay (sometimes referred to as "PDSCH scheduling delay") and HARQ-ACK delay may include at least one of the following: {PDSCH scheduling delay is 2, and HARQ-ACK delay is 4}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 5}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 6}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 8}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 8}, {PDSCH scheduling delay is 2, and HARQ-ACK delay is 4 ... {ARQ-ACK delay is 9}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 10}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 11}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 13}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 15}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 17}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 12}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 13}.

[0137] In some embodiments, the first control field may include a HARQ-ACK delay field and / or a second control field. In some embodiments, the size of the second control field may be 1 bit.

[0138] In some embodiments, the second control domain is a PDSCH scheduling delay domain, wherein a value of "0" in the domain means that the PDSCH scheduling delay is 2, and a value of "1" in the domain means that the PDSCH scheduling delay is 2 or 7, and vice versa.

[0139] In some embodiments, UE 304 can determine the PDSCH scheduling delay and / or HARQ acknowledgment delay based on the first control field in the downlink control information, such as... Figure 11 As shown. For example, Figure 11 An example table of HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0140] BS perspective:

[0141] In some embodiments, BS 302 may send (e.g., transmit, deliver, etc.) downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK feedback delay, etc.).

[0142] In some embodiments, BS 302 may indicate (e.g., notification, identification, selection, etc.) the scheduling delay of PDSCH and / or HARQ-ACK delay through a first control field in the downlink control information.

[0143] In some embodiments, BS 302 may send (e.g., transmit, deliver, etc.) PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0144] In some embodiments, the scheduling delay and / or HARQ-ACK delay indicated by the PDSCH may include at least one of the following: {PDSCH scheduling delay is 2 and HARQ-ACK delay is 4}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 5}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 6}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 7}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}. {Delta is 9}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 10}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 11}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 13}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 15}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 17}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 12}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 13}.

[0145] In some embodiments, the first control field may include a HARQ-ACK delay field and / or a second control field. In some embodiments, the size of the second control field may be 1 bit.

[0146] In some embodiments, the second control domain is a PDSCH scheduling delay domain, wherein a value of "0" in the domain means that the PDSCH scheduling delay is 2, and a value of "1" in the domain means that the PDSCH scheduling delay is 2 or 7.

[0147] In some embodiments, BS 302 can indicate the PDSCH scheduling delay and / or the corresponding HARQ-ACK feedback delay through a first control field in the downlink control information, such as... Figure 11 As shown.

[0148] 4.2 One or more example implementations – Group 2

[0149] From the perspective of UE:

[0150] In some embodiments, UE 304 may receive downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK delay, etc.).

[0151] In some embodiments, UE 304 may determine (e.g., calculate, measure, identify, etc.) the PDSCH scheduling delay and / or HARQ delay based on the first control field in the downlink control information.

[0152] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0153] In some embodiments, the determined PDSCH scheduling delay and / or HARQ-ACK delay may include at least one of the following: {PDSCH scheduling delay is 2 and HARQ-ACK delay is 4}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 5}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 6}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 7}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}. {Delta is 9}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 10}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 11}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 13}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 15}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 17}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 12}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 13}.

[0154] In some embodiments, the first control field may be a HARQ-ACK delay field. In some embodiments, UE 304 may determine the PDSCH scheduling delay and / or HARQ acknowledgment delay based on the first control field in the downlink control information, such as... Figure 12 As shown. For example, Figure 12 An example table of HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0155] BS perspective:

[0156] In some embodiments, BS 302 may send downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK delay, etc.).

[0157] In some embodiments, BS 302 may indicate PDSCH scheduling delay and / or HARQ-ACK delay through a first control field in the downlink control information.

[0158] In some embodiments, BS 302 may send PDSCH, and / or BS 302 may receive HARQ-ACK corresponding to PDSCH.

[0159] In some embodiments, the scheduling delay and / or HARQ-ACK delay indicated by the PDSCH may include at least one of the following: {PDSCH scheduling delay is 2 and HARQ-ACK delay is 4}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 5}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 6}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 7}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 8}. {Delta is 9}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 10}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 11}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 13}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 15}, {PDSCH scheduling delay is 2 and HARQ-ACK delay is 17}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 12}, {PDSCH scheduling delay is 7 and HARQ-ACK delay is 13}.

[0160] In some embodiments, the first control domain may be the HARQ-ACK delay domain.

[0161] In some embodiments, BS 302 can indicate the PDSCH scheduling delay and / or HARQ-ACK delay through a first control field in the downlink control information, such as... Figure 12 As shown.

[0162] 4.3 One or more example embodiments – Group 3

[0163] From the perspective of UE:

[0164] In some embodiments, UE 304 may receive downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK delay, etc.).

[0165] In some embodiments, UE 304 may determine the HARQ process number, PDSCH scheduling delay, and / or HARQ acknowledgment delay based on the first control field in the downlink control information.

[0166] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0167] In some embodiments, the determined HARQ process number, PDSCH scheduling delay, and / or corresponding HARQ-ACK feedback delay include at least one of the following: {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 4}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 5}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 6}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}. {HARQ process number 10, PDSCH scheduling delay 2, and HARQ-ACK delay 9}, {HARQ process number 10, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 10, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 10, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 10, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 10, PDSCH scheduling delay 7, and HARQ-ACK delay 14} {HARQ process number 10, PDSCH scheduling delay 7, and HARQ-ACK delay 15}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 4}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 5}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 6}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 7}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 8}, {HARQ process number 10 ... {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 9}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 11, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 11, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 11, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 11, ...}{PDSCH scheduling delay is 7, and HARQ-ACK delay is 15}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 4}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 5}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 6}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 8}, {HARQ process number is 12, PDSCH...} {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 9}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 9 ... {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 4}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 5}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 6}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 7}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 8}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 2} {HARQ process number is 13, PDSCH scheduling delay is 2, and HARQ-ACK delay is 10}, {HARQ process number is 13, PDSCH scheduling delay is 2, and HARQ-ACK delay is 11}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 12}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 13}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}.And the HARQ-ACK delay is 15 seconds.

[0168] In some embodiments, the first control field may include a HARQ process number field and / or a HARQ-ACK delay field.

[0169] In some embodiments, UE 304 can determine the PDSCH scheduling delay and / or HARQ acknowledgment delay based on the first control field in the downlink control information, such as... Figure 13 As shown. For example, Figure 13 An example table of HARQ-ACK delays according to some embodiments of this disclosure is shown.

[0170] BS perspective:

[0171] In some embodiments, BS 302 may send downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK feedback delay, etc.).

[0172] In some embodiments, BS 302 may indicate the HARQ process number, PDSCH scheduling delay, and corresponding HARQ-ACK feedback delay through the first control field in the downlink control information.

[0173] In some embodiments, BS 302 may send PDSCH, and / or BS 302 may receive HARQ-ACK corresponding to PDSCH.

[0174] In some embodiments, the indicated HARQ process number, PDSCH scheduling delay, and / or HARQ-ACK delay may include at least one of the following: {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 4}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 5}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 6}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 10}. 8}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 9}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 10}, {HARQ process number is 10, PDSCH scheduling delay is 2, and HARQ-ACK delay is 11}, {HARQ process number is 10, PDSCH scheduling delay is 7, and HARQ-ACK delay is 12}, {HARQ process number is 10, PDSCH scheduling delay is 7, and HARQ-ACK delay is 13}, {HARQ process number is 10, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14} {HARQ process number 10, PDSCH scheduling delay 7, and HARQ-ACK delay 15}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 4}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 5}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 6}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 7}, {HARQ process number 11, PDSCH scheduling delay 2, and HARQ-ACK delay 8}, {HARQ process number 10 ... {HARQ process number is 11, PDSCH scheduling delay is 2, and HARQ-ACK delay is 9}, {HARQ process number is 11, PDSCH scheduling delay is 2, and HARQ-ACK delay is 10}, {HARQ process number is 11, PDSCH scheduling delay is 2, and HARQ-ACK delay is 11}, {HARQ process number is 11, PDSCH scheduling delay is 7, and HARQ-ACK delay is 12}, {HARQ process number is 11, PDSCH scheduling delay is 7, and HARQ-ACK delay is 13}, {HARQ process number is 11, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}, {HARQ process number is 11, ...}{PDSCH scheduling delay is 7, and HARQ-ACK delay is 15}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 4}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 5}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 6}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 7}, {HARQ process number is 12, PDSCH scheduling delay is 2, and HARQ-ACK delay is 8}, {HARQ process number is 12, PDSCH...} {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 9}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 10}, {HARQ process number 12, PDSCH scheduling delay 2, and HARQ-ACK delay 11}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 12}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 13}, {HARQ process number 12, PDSCH scheduling delay 7, and HARQ-ACK delay 14}, {HARQ process number 12, PDSCH scheduling delay 9 ... {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 4}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 5}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 6}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 7}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 8}, {HARQ process number 13, PDSCH scheduling delay 2, and HARQ-ACK delay 2} {HARQ process number is 13, PDSCH scheduling delay is 2, and HARQ-ACK delay is 10}, {HARQ process number is 13, PDSCH scheduling delay is 2, and HARQ-ACK delay is 11}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 12}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 13}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}, {HARQ process number is 13, PDSCH scheduling delay is 7, and HARQ-ACK delay is 14}.And the HARQ-ACK delay is 15 seconds.

[0175] In some embodiments, the first control field may consist of a HARQ process number field and / or a HARQ-ACK delay field.

[0176] In some embodiments, BS 302 can indicate the PDSCH scheduling delay and / or HARQ-ACK delay through a first control field in the downlink control information, such as... Figure 13 As shown.

[0177] 4.4 One or more example implementations – Group 4

[0178] From the perspective of UE:

[0179] In some embodiments, UE 304 may receive downlink control information.

[0180] In some embodiments, UE 304 may determine the HARQ-ACK delay based on a first control field in the downlink control information.

[0181] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0182] In some embodiments, the HARQ-ACK feedback delay domain may include delay values ​​{0, 1, 2, ... 15}.

[0183] In some embodiments, the first control domain may be the HARQ-ACK delay domain.

[0184] BS perspective:

[0185] In some embodiments, BS 302 may send downlink control information (e.g., PDSCH scheduling delay, HARQ-ACK delay, etc.).

[0186] In some embodiments, BS 302 may indicate the HARQ-ACK feedback delay through a first control field in the downlink control information.

[0187] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0188] In some embodiments, the HARQ-ACK delay field may include delay values ​​{0, 1, 2, ... 15}.

[0189] In some embodiments, the first control domain may be the HARQ-ACK delay domain.

[0190] 4.5 One or more example embodiments – Group 5

[0191] From the perspective of UE:

[0192] In some embodiments, UE 304 may receive downlink control information.

[0193] In some embodiments, UE 304 may determine the HARQ-ACK delay based on a first control field in the downlink control information.

[0194] In some embodiments, UE 304 may receive PDSCH and send HARQ-ACK based on the receipt of PDSCH.

[0195] In some embodiments, the HARQ-ACK delay field may contain delay values ​​{0, 1, 2, ... 15}.

[0196] In some embodiments, the first control domain may include a 3-bit HARQ acknowledgment delay domain and / or a 1-bit third control domain.

[0197] BS perspective:

[0198] In some embodiments, BS 302 may send downlink control information.

[0199] In some embodiments, BS 302 may indicate HARQ-ACK delay via a first control field in the downlink control information.

[0200] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0201] In some embodiments, the HARQ-ACK delay field includes delay values ​​{0, 1, 2, ... 15}.

[0202] In some embodiments, the first control domain may include a 3-bit HARQ acknowledgment delay domain and / or a 1-bit third control domain.

[0203] 4.6 One or more example embodiments – Group 6

[0204] From the perspective of UE:

[0205] In some embodiments, UE 304 may receive downlink control information.

[0206] In some embodiments, UE 304 may determine the HARQ-ACK delay based on a first control field in the downlink control information.

[0207] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0208] In some embodiments, the delay values ​​included in the HARQ-ACK delay field can be up to 16 values ​​configured by higher-level signaling;

[0209] In some embodiments, the first control field can be up to 4 bits.

[0210] BS perspective:

[0211] In some embodiments, BS 302 may send downlink control information.

[0212] In some embodiments, BS 302 may indicate HARQ-ACK delay via a first control field in the downlink control information.

[0213] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0214] In some embodiments, the delay values ​​included in the HARQ-ACK delay field can be up to 16 values ​​configured by higher-level signaling.

[0215] In some embodiments, the first control field can be up to 4 bits.

[0216] 4.7 One or more example embodiments – Group 7

[0217] From the perspective of UE:

[0218] In some embodiments, UE 304 may receive downlink control information.

[0219] In some embodiments, UE 304 may determine the HARQ-ACK delay based on a first control field in the downlink control information.

[0220] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0221] In some embodiments, when the corresponding PDSCH slot belongs to a first slot, the HARQ-ACK delay value is selected from a first set of values. In some embodiments, when the slot in which the corresponding PDSCH is located belongs to a second slot, the HARQ-ACK delay value is selected from a second set of values.

[0222] In some embodiments, the first time slot may be a time slot whose time slot index is odd. In some embodiments, the first time slot may be a time slot whose time slot index is less than or equal to a preset value. In some embodiments, the first time slot may be a time slot whose radio frame index is odd. In some embodiments, the first time slot may be a predefined time slot.

[0223] In some embodiments, the second time slot may be a time slot whose time slot index is even. In some embodiments, the second time slot may be a time slot whose time slot index is greater than a preset value. In some embodiments, the second time slot may be a time slot whose radio frame index is even. In some embodiments, the second time slot may be a predefined time slot.

[0224] In some embodiments, the first control domain may be the HARQ-ACK delay domain.

[0225] BS perspective:

[0226] In some embodiments, BS 302 may send downlink control information.

[0227] In some embodiments, BS 302 may indicate HARQ-ACK delay via a first control field in the downlink control information.

[0228] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0229] In some embodiments, when the corresponding PDSCH slot belongs to a first slot, the HARQ-ACK delay value is selected from a first set of values. In some embodiments, when the slot in which the corresponding PDSCH is located belongs to a second slot, the HARQ-ACK delay value is selected from a second set of values.

[0230] In some embodiments, time slot t can be a time slot whose time slot index is odd. In some embodiments, the first time slot can be a time slot whose time slot index is less than or equal to a preset value. In some embodiments, the first time slot can be a radio frame whose radio frame index is odd. In some embodiments, the second time slot can be a predefined time slot.

[0231] In some embodiments, the second time slot may be a time slot whose time slot index is even. In some embodiments, the second time slot may be a time slot whose time slot index is greater than a preset value. In some embodiments, the second time slot may be a time slot whose radio frame index is even. In some embodiments, the second time slot may be a predefined time slot.

[0232] In some embodiments, the first control domain may be the HARQ-ACK delay domain.

[0233] 4.8 One or more example implementations – Group 8

[0234] From the perspective of UE:

[0235] In some embodiments, UE 304 may receive downlink control information.

[0236] In some embodiments, UE 304 may determine the HARQ-ACK delay based on a first control field in the downlink control information.

[0237] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0238] In some embodiments, when the HARQ process corresponding to the PDSCH belongs to a first process, the value of the HARQ-ACK delay is selected from a first set of values. In some embodiments, when the HARQ process corresponding to the PDSCH belongs to a second process, the value of the HARQ-ACK delay is selected from a second set of values.

[0239] In some embodiments, the first process may be a process whose HARQ process ID is odd. In some embodiments, the first process may be a process whose HARQ process ID is less than a preset value. In some embodiments, the first process may be a predefined process.

[0240] In some embodiments, the second process may be a process whose HARQ process number is even. In some embodiments, the second process may be a process whose HARQ process number is greater than a preset value. In some embodiments, the second process may be a predefined process.

[0241] In some embodiments, the first control domain may be the HARQ-ACK feedback delay domain.

[0242] BS perspective:

[0243] In some embodiments, BS 302 may send downlink control information.

[0244] In some embodiments, BS 302 may indicate the HARQ-ACK feedback delay through a first control field in the downlink control information.

[0245] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0246] In some embodiments, when the HARQ process corresponding to the PDSCH belongs to a first process, the value of the HARQ-ACK delay is selected from a first set of values. In some embodiments, when the HARQ process corresponding to the PDSCH belongs to a second process, the value of the HARQ-ACK delay is selected from a second set of values.

[0247] In some embodiments, the first process may be a process whose HARQ process ID is odd. In some embodiments, the first process may be a process whose HARQ process ID is less than a preset value. In some embodiments, the second process may be a predefined process.

[0248] In some embodiments, the second process may be a process whose HARQ process number is even. In some embodiments, the second process may be a process whose HARQ process number is greater than a preset value. In some embodiments, the second process may be a predefined process.

[0249] In some embodiments, the first control domain may be the HARQ-ACK feedback delay domain.

[0250] 4.9 One or more example implementations – Group 9

[0251] From the perspective of UE:

[0252] In some embodiments, UE 304 may receive downlink control information.

[0253] In some embodiments, UE 304 may determine the HARQ-ACK feedback delay based on the first control field in the downlink control information.

[0254] In some embodiments, UE 304 may receive PDSCH and / or send HARQ-ACK based on the receipt of PDSCH.

[0255] In some embodiments, when the control resource group to which the downlink control information belongs is a first control resource group, the value of the HARQ-ACK delay is selected from a first set of values. In some embodiments, when the control resource group to which the downlink control information belongs is a second control resource group, the value of the HARQ-ACK delay is selected from a second set of values.

[0256] In some embodiments, the first control resource group may be an odd number of control resource groups. In some embodiments, the first control resource group may be a predefined control resource group.

[0257] In some embodiments, the second control resource group may be a control resource group with an even-numbered index. In some embodiments, the first control resource group may be a predefined control resource group.

[0258] In some embodiments, the first control domain may be the HARQ-ACK feedback delay domain.

[0259] BS perspective:

[0260] In some embodiments, BS 302 may receive downlink control information.

[0261] In some embodiments, BS 302 may indicate the HARQ-ACK feedback delay through a first control field in the downlink control information.

[0262] In some embodiments, BS 302 may send PDSCH and / or receive HARQ-ACK corresponding to PDSCH.

[0263] In some embodiments, when the control resource group to which the downlink control information belongs is a first control resource group, the value of the HARQ-ACK delay is selected from a first set of values. In some embodiments, when the control resource group to which the downlink control information belongs is a second control resource group, the value of the HARQ-ACK delay is selected from a second set of values.

[0264] In some embodiments, the first control resource group may be an odd number of control resource groups. In some embodiments, the first control resource group may be a predefined control resource group.

[0265] In some embodiments, the second control resource group may be a control resource group with an even-numbered index. In some embodiments, the first control resource group may be a predefined control resource group.

[0266] In some embodiments, the first control domain may be the HARQ-ACK feedback delay domain.

[0267] 5. A method for implementing one or more example embodiments from groups 1 to 9.

[0268] Figure 14 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1400 may be performed by a wireless communication node (such as...) Figure 3 BS 302 in the middle) is executed. In some operations, some or all of the operations of method 1400 can be performed by a wireless communication device (such as Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0269] As shown in the figure, in some embodiments, method 1400 includes operation 1402: by a wireless communication device (e.g., Figure 3 UE 304 in the text) from the wireless communication node (e.g., Figure 3 In BS 302, a control signal is received indicating one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and one of a plurality of Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) delays. In some embodiments, the method includes operation 1404: the wireless communication device receives a PDSCH from the wireless communication node based on the PDSCH scheduling delay. In some embodiments, the method includes operation 1406: the wireless communication device sends a HARQ-ACK corresponding to the received PDSCH to the wireless communication node based on the HARQ-ACK delay.

[0270] Figure 15 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1500 may be performed by a wireless communication node (such as...) Figure 3 BS 302 in the code is executed. In some operations, some or all of the operations of method 1500 can be performed by a wireless communication device (such as...). Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0271] As shown in the figure, in some embodiments, method 1500 includes operation 1502: receiving from a wireless communication device a control signal indicating one of a plurality of Hybrid Automatic Repeat Request (HARQ) process numbers, one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays, and one of a plurality of Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) delays from a wireless communication node. In some embodiments, the method includes operation 1504: receiving a PDSCH from the wireless communication device based on the PDSCH scheduling delay. In some embodiments, the method includes operation 1506: sending a HARQ-ACK corresponding to the PDSCH to the wireless communication node based on the HARQ-ACK delay.

[0272] Figure 16 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1600 may be performed by a wireless communication node (such as...) Figure 3BS 302 in the code is executed. In some operations, some or all of the operations of method 1600 can be performed by a wireless communication device (such as...). Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0273] As shown, in some embodiments, method 1600 includes operation 1602: receiving from a wireless communication node a control signal by a wireless communication device indicating one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes operation 1604: receiving from the wireless communication node a Physical Downlink Shared Channel (PDSCH) by the wireless communication device. In some embodiments, the method includes operation 1606: sending a HARQ-ACK corresponding to the received PDSCH to the wireless communication node based on the HARQ-ACK delay indicated in the control signal.

[0274] Figure 17 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1700 may be performed by a wireless communication node (such as...) Figure 3 BS 302 in the code is executed. In some operations, some or all of the operations of method 1700 can be performed by a wireless communication device (such as...). Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0275] As shown, in some embodiments, method 1700 includes operation 1702: a wireless communication node sending a control signal to a wireless communication device indicating one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes operation 1704: the wireless communication node sending a PDSCH to the wireless communication device. In some embodiments, the PDSCH causes the wireless communication device to: receive the PDSCH based on the PDSCH scheduling delay, and send a HARQ-ACK corresponding to the received PDSCH to the wireless communication node based on the HARQ-ACK delay. In some embodiments, the method includes operation 1706: the wireless communication node receiving a HARQ-ACK corresponding to the received PDSCH from the wireless communication device.

[0276] Figure 18This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1800 may be performed by a wireless communication node (such as...) Figure 3 BS 302 in the code is executed. In some operations, some or all of the operations of method 1800 can be performed by a wireless communication device (such as...). Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0277] As shown in the figure, in some embodiments, method 1800 includes operation 1802: a wireless communication node sending a control signal to a wireless communication device indicating one of a plurality of Hybrid Automatic Repeat Request (HARQ) process numbers, one of a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays, and one of a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. In some embodiments, the method includes operation 1804: the wireless communication node sending a PDSCH to the wireless communication device. In some embodiments, the PDSCH causes the wireless communication device to: receive the PDSCH based on the PDSCH scheduling delay, and send a HARQ-ACK corresponding to the PDSCH to the wireless communication node based on the HARQ-ACK delay. In some embodiments, the method includes operation 1806: the wireless communication node receiving a HARQ-ACK corresponding to the PDSCH from the wireless communication device.

[0278] Figure 19 This is a flowchart depicting a method for determining downlink control information according to some embodiments of the present disclosure. Depending on the specific embodiment, additional, fewer, or different operations may be performed in this method. In some embodiments, some or all of the operations of method 1900 may be performed by a wireless communication node (such as...) Figure 3 BS 302 in the code is executed. In some operations, some or all of the operations of method 1900 can be performed by a wireless communication device (such as...). Figure 3 Executed in UE 304. Each operation can be reordered, added, removed, or repeated.

[0279] As shown, in some embodiments, method 1900 includes operation 1902: a wireless communication node sending a control signal to a wireless communication device indicating one of a plurality of hybrid automatic repeat request-acknowledgment (HARQ-ACK) delays. In some embodiments, the method includes operation 1904: a wireless communication node sending a physical downlink shared channel (PDSCH) to a wireless communication device. In some embodiments, the PDSCH causes the wireless communication device to: receive the PDSCH based on the HARQ-ACK delay indicated in the control signal, and send a HARQ-ACK corresponding to the received PDSCH. In some embodiments, the method includes operation 1906: a wireless communication node receiving a HARQ-ACK corresponding to the received PDSCH from a wireless communication device.

[0280] While various embodiments of the present solution have been described above, it should be understood that they are presented merely as examples and not as limitations. Similarly, various diagrams may depict exemplary architectures or configurations, provided to enable those skilled in the art to understand exemplary features and functionality of the present solution. However, those skilled in the art will understand that the present solution is not limited to the exemplary architectures or configurations shown, but can be implemented using various alternative architectures and configurations. Additionally, as will be understood by those skilled in the art, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited to any of the illustrative embodiments described above.

[0281] It should also be understood that any reference to elements in this document using designations such as "first," "second," etc., generally does not restrict the number or order of these elements. Rather, these designations may be used herein as a convenient means of distinguishing two or more elements or instances of elements. Therefore, a reference to the first element and the second element does not imply that only two elements can be used, or that the first element must somehow precede the second element.

[0282] Additionally, those skilled in the art will understand that information and signals can be represented using any of a variety of different techniques and processes. For example, data, instructions, commands, information, signals, bits, and symbols (e.g., they may be referenced in the description above) can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0283] Those skilled in the art will further understand that any of the various illustrative logic blocks, modules, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, programs in various forms of instruction sets (e.g., computer program products), or design code (which may be referred to herein as "software" or "software module" for convenience), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been described above in their entirety with respect to their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these technologies, depends on the specific application and the design constraints imposed on the system as a whole. Those skilled in the art can implement the described functionality in various ways for each specific application, but such implementation decisions do not depart from the scope of this disclosure.

[0284] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented within or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices or any combination thereof. Logic blocks, modules, and circuits may further include antennas and / or transceivers for communication with various components within a network or device. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors with a digital signal processor core, or any other suitable configuration to perform the functions described herein.

[0285] If implemented as software, functionality can be stored as one or more instructions or code on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. A computer-readable medium includes both computer storage media and communication media, including any medium that can be enabled to transfer a computer program or code from one place to another. A storage medium can be any available medium that is accessible to a computer. By way of example and not limitation, such a computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that is accessible to a computer.

[0286] In this document, as used herein, the term "module" refers to software, firmware, hardware, and any combination of such elements for performing the associated functions described herein. Additionally, for the purposes of discussion, various modules are described as discrete modules; however, as will be apparent to those skilled in the art, according to embodiments of this solution, two or more modules may be combined to form a single module performing the associated functions.

[0287] Additionally, in embodiments of this solution, memory or other storage devices and communication components may be employed. It should be understood that, for clarity, embodiments of this solution have been described above with reference to different functional units and processors. However, it will be apparent that any suitable functional distribution among different functional units, processing logic elements, or domains can be used without departing from this solution. For example, functions shown to be performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Therefore, references to specific functional units are merely references to suitable means for providing the described functionality and do not indicate a strict logical or physical structure or organization.

[0288] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the foregoing claims.

Claims

1. A wireless communication method, comprising: A control signal is received from a wireless communication node by a wireless communication device. The control signal indicates a PDSCH scheduling delay in a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and a HARQ-ACK delay in a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. The control signal comprises four bits configured to indicate the PDSCH scheduling delay and the HARQ-ACK delay. The control signal is configured to indicate a combination of the PDSCH scheduling delay and the HARQ-ACK delay, and the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, and {7,13}. The wireless communication device receives the PDSCH from the wireless communication node based on the PDSCH scheduling delay; and The wireless communication device sends a HARQ-ACK corresponding to the received PDSCH to the wireless communication node based on the HARQ-ACK delay.

2. The wireless communication method of claim 1, wherein the control signal includes a first field and a second field configured to jointly indicate a combination of the PDSCH scheduling delay and the HARQ-ACK delay, the first field having 1 bit and the second field having 3 bits.

3. The wireless communication method according to claim 1, wherein the wireless communication device includes a half-duplex user equipment.

4. A wireless communication method, comprising: A control signal is sent from a wireless communication node to a wireless communication device. The control signal indicates a PDSCH scheduling delay in a plurality of Physical Downlink Shared Channel (PDSCH) scheduling delays and a HARQ-ACK delay in a plurality of Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) delays. The control signal comprises four bits configured to indicate the PDSCH scheduling delay and the HARQ-ACK delay. The control signal is configured to indicate a combination of the PDSCH scheduling delay and the HARQ-ACK delay, and the combination is selected from at least one of the following: {2,4}, {2,5}, {2,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,13}, {2,15}, {2,17}, {7,12}, and {7,13}. The wireless communication node sends a PDSCH to the wireless communication device; and The wireless communication node receives a HARQ-ACK corresponding to the transmitted PDSCH from the wireless communication device.

5. The wireless communication method of claim 4, wherein the control signal includes a first field and a second field configured to jointly indicate a combination of the PDSCH scheduling delay and the HARQ-ACK delay, the first field having 1 bit and the second field having 3 bits.

6. The wireless communication method according to claim 4, wherein the wireless communication device includes a half-duplex user equipment.

7. A wireless communication device comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement the method of any one of claims 1 to 6.

8. A computer program product comprising computer-readable program medium code stored thereon, the code causing the processor, when executed by a processor, to perform the method of any one of claims 1 to 6.

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