Communication method and device

Abstract

The present application relates to a communication method, comprising: a first communication device receiving sequence indication information; in the case that the first communication device has detected, from the sequence indication information, a sequence corresponding to the first communication device, the first communication device receiving a first load; and in the case that the first communication device has not detected, from the first load, first data and / or first control information corresponding to the first communication device, the first communication device sending a second load. By means of the embodiments of the present application, the energy consumption of a communication device can be reduced.

Description

Communication method and device TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly, to a communication method and device. BACKGROUND

[0002] In a communication system, a Physical Downlink Control Channel (PDCCH) channel is used to transmit Downlink Control Information (DCI), a Physical Downlink Shared Channel (PDSCH) is used to transmit downlink data, and a time-frequency resource used by the PDSCH is scheduled by the DCI. This approach relies on blind detection of the PDCCH by a terminal and can consume a large amount of terminal power.

[0003] SUMMARY

[0004] Embodiments of the present application provide a communication method and device, which can reduce the power consumption of a communication device.

[0005] Embodiments of the present application provide a communication method, comprising:

[0006] receiving, by a first communication device, sequence indication information;

[0007] in a case where the first communication device detects, from the sequence indication information, a sequence corresponding to the first communication device, receiving, by the first communication device, a first load;

[0008] in a case where the first communication device does not detect, from the first load, first data and / or first control information corresponding to the first communication device, transmitting, by the first communication device, a second load.

[0009] Embodiments of the present application provide a communication method, comprising:

[0010] transmitting, by a second communication device, sequence indication information;

[0011] in a case where the sequence indication information includes a sequence corresponding to the first communication device, transmitting, by the second communication device, a first load;

[0012] in a case where the first load does not include first data and / or first control information corresponding to the first communication device, receiving, by the second communication device, a second load.

[0013] Embodiments of the present application provide a first communication device, comprising:

[0014] a transceiver configured to receive sequence indication information;

[0015] The transceiver is further configured to receive the first load in a case where the first communication device detects a sequence corresponding to the first communication device from the sequence indication information.

[0016] The transceiver is further configured to send the second load in a case where the first communication device does not detect the first data and / or the first control information corresponding to the first communication device from the first load.

[0017] Embodiments of the present application provide a second communication device, comprising:

[0018] A transceiver configured to send sequence indication information.

[0019] The transceiver is further configured to send the first load in a case where there is a sequence corresponding to the first communication device in the sequence indication information.

[0020] The transceiver is further configured to receive the second load in a case where there is no first data and / or first control information corresponding to the first communication device in the first load.

[0021] Embodiments of the present application provide a communication device, comprising a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the terminal device executes the above-mentioned communication method.

[0022] Embodiments of the present application provide a chip for implementing the above-mentioned communication method.

[0023] Specifically, the chip comprises a processor configured to invoke and run a computer program from a memory, so that the device installed with the chip executes the above-mentioned communication method.

[0024] Embodiments of the present application provide a computer readable storage medium for storing a computer program, which causes the device to execute the above-mentioned communication method when the computer program is run by the device.

[0025] Embodiments of the present application provide a computer program product comprising computer program instructions, which cause a computer to execute the above-mentioned communication method.

[0026] Embodiments of the present application provide a computer program, which causes a computer to execute the above-mentioned communication method when it is run on the computer. BRIEF DESCRIPTION OF DRAWINGS

[0027] FIG. 1 is a schematic diagram of an application scenario according to embodiments of the present application.

[0028] FIG. 2 is a schematic diagram of a whole description of a wireless communication system.

[0029] Figure 3 is a diagram of REG structure of 5G NR.

[0030] Figure 4 is a diagram of CCE structure of 5G NR.

[0031] Figure 5 is a diagram of PDCCH structure of 5G NR.

[0032] Figure 6 is a diagram of a communication method according to an embodiment of the application.

[0033] Figure 7 is a diagram of a communication method according to another embodiment of the application.

[0034] Figure 8 is a diagram of a communication method according to another embodiment of the application.

[0035] Figure 9 is a diagram of a communication method according to an embodiment of the application.

[0036] Figure 10 is a diagram of a communication method according to another embodiment of the application.

[0037] Figure 11 is a diagram of a communication method according to another embodiment of the application.

[0038] Figure 12 is a diagram of switching between downlink scheduling and uplink scheduling according to an embodiment of the application.

[0039] Figure 13 is a diagram of different detection results of sequence indication information and downlink payload.

[0040] Figure 14A is a diagram of time resources for sending uplink data.

[0041] Figure 14B is a diagram of determining uplink resources for sending uplink payload based on sequence indication information.

[0042] Figure 14C is a diagram of determining uplink resources for sending uplink payload based on downlink payload.

[0043] Figure 15 is a diagram of the first uplink resources available for the terminal to send uplink payload after sequence indication information.

[0044] Figure 16 is a diagram of a first communication device according to an embodiment of the application.

[0045] Figure 17 is a diagram of a second communication device according to an embodiment of the application.

[0046] Figure 18 is a diagram of a communication device according to an embodiment of the application.

[0047] Figure 19 is a diagram of a chip according to an embodiment of the application.

[0048] FIG. 20 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0050] The technical solutions in the embodiments of the present application can be applied to various communication systems, for example, a Long Term Evolution (LTE) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, a Non-Terrestrial Networks (NTN) system, a Universal Mobile Telecommunication System (UMTS), a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a 5th-Generation (5G) system, or other communication systems, etc.

[0051] Generally, a conventional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0052] In an embodiment, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, can also be applied to a Dual Connectivity (DC) scenario, and can also be applied to a Standalone (SA) network deployment scenario.

[0053] In an implementation, the communication system in the embodiments of the present application can be applied to unlicensed spectrum, which can also be considered as shared spectrum; or the communication system in the embodiments of the present application can also be applied to licensed spectrum, which can also be considered as unshared spectrum.

[0054] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein the terminal device can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment, etc.

[0055] The terminal device can be a station (STA) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0056] In the embodiments of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0057] In the embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0058] By way of example and not limitation, in the embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also has powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes devices with full functions, large size, and the ability to realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various smart wristbands, smart jewelry, etc.

[0059] In the embodiments of the present application, the network device can be a device for communicating with the mobile device, which can be an access point (AP) in WLAN, an evolved node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (gNB) or a future evolved PLMN network or a network device in an NTN network, etc.

[0060] By way of example and not limitation, in embodiments of the present application, a network device can have a mobile characteristic, for example, the network device can be a mobile device. Alternatively, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device can also be a base station disposed at a location on land, water, etc.

[0061] In embodiments of the present application, a network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc., and these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0062] FIG. 1 illustrates a communication system 100. The communication system includes one network device 110 and two terminal devices 120. In an implementation, the communication system 100 can include multiple network devices 110, and each network device 110 can include other numbers of terminal devices 120 within its coverage, which is not limited in embodiments of the present application.

[0063] In an implementation, the communication system 100 can further include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in embodiments of the present application.

[0064] The network device can include an access network device and a core network device. That is, the wireless communication system also includes a plurality of core networks for communicating with the access network device. The access network device can be an evolved node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an access point (AP), a transmission point (TP), or a new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next radio (NR) system, or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0065] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example, the communication system shown in FIG. 1 can include network devices and terminal devices with communication functions. The network devices and terminal devices can be specific devices in the embodiments of the present application, which will not be described here. The communication devices can also include other devices in the communication system, such as network controllers, mobile management entities, and other network entities. The embodiments of the present application do not limit the above.

[0066] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document is only used to describe the association relationship between the associated objects. For example, A and / or B can represent three cases: A alone, A and B together, and B alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0067] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained directly through A; or A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or A and B have an associated relationship.

[0068] In the description of the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, and the like.

[0069] For the convenience of understanding the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows, which can be combined with the technical solutions of the embodiments of the present application in any manner as optional solutions, and all belong to the protection scope of the embodiments of the present application.

[0070] I. Wireless communication system

[0071] As shown in FIG. 2, in a wireless communication system, the basic working process can include the following steps. At the transmitting end, the transmitter performs channel coding and modulation on the source bit stream to obtain modulation symbols; pilot symbols are inserted into the modulated symbols for channel estimation and symbol detection at the receiving end; finally, the transmitting signal is formed and reaches the receiving end through the channel (noise can be added). At the receiving end, the receiver first performs channel estimation on the received signal using the pilot, and feeds back the channel state information (CSI) to the transmitting end through the feedback link for the transmitter to adjust the channel coding, modulation, precoding and other modes; finally, the receiver obtains the final recovered bit stream through symbol detection, demodulation and channel decoding and other steps.

[0072] The above process is a simple schematic, and there are other modules not listed in the conventional communication system, such as resource mapping, precoding, interference cancellation, CSI measurement, etc. These modules can be designed and implemented independently, and then the independent modules can be integrated to form a complete wireless communication system.

[0073] II. PDCCH resource configuration of 5G system

[0074] 5G NR PDCCH is transmitted periodically in time domain, and each PDCCH can contain downlink control information (DCI) of multiple terminals in the cell. Therefore, the terminal needs to perform blind detection on the PDCCH that can have DCI related to itself at the time domain position configured by the base station, so as to find the DCI related to itself. Even if the base station does not transmit the DCI related to the terminal in a certain PDCCH, the terminal must perform blind detection on this PDCCH. Although this PDCCH detection method realizes high multiplexing of the DCI of all terminals in the cell, it causes high power consumption of the terminal due to a large number of unnecessary blind detections.

[0075] The basic unit of 5G NR PDCCH is a resource element group (REG), as shown in FIG. 3, which is composed of 1 symbol in time domain and 12 subcarriers in frequency domain, and contains 12 REs (resource elements), including 3 orthogonal reference signal (RS) REs and 9 data REs.

[0076] 6 REGs constitute a Control Channel Element (CCE), as shown in FIG. 4. An example of possible REG structure is as follows:

[0077] For a control resource set (CORESET) of 3 Orthogonal Frequency Division Multiplexing (OFDM) symbol length, 6 REGs include 3 rows in time domain x 2 columns in frequency domain.

[0078] For a CORESET of 2 OFDM symbol length, 6 REGs include 2 rows in time domain x 3 columns in frequency domain.

[0079] For a CORESET of 1 OFDM symbol length, 6 REGs include 1 row in time domain x 6 columns in frequency domain.

[0080] An NR PDCCH is arranged by N (N = 1, 2, 4, 8 or 16) identical CCEs in frequency domain. Taking a CORESET of 3 symbol length as an example, the structure of the PDCCH is shown in FIG. 5. N is called aggregation level. The larger N is, the more CCEs are repeated, and the better the PDCCH transmission performance is, but the more time-frequency resources are consumed.

[0081] The control channel (such as PDCCH, PUCCH) of the 5G system adopts Polar encoding, and the data channel (such as PDSCH, PUSCH) adopts Low Density Parity Check (LDPC) encoding.

[0082] In the 5G system, the PDCCH channel is only used to transmit DCI, and the downlink data is transmitted through the PDSCH. The time-frequency resources used by the PDSCH are scheduled by the DCI. This scheduling method can multiplex the scheduling information of a large number of terminals in one PDCCH for transmission, and the scheduling efficiency of the system is very high. However, as a cost, this scheduling method relies on the blind detection of the terminal on the PDCCH. Even if the base station does not send the DCI of a certain terminal, the terminal also needs to periodically search for the DCI in the PDCCH, thus consuming a large amount of terminal power.

[0083] In some examples, a sequence detection based scheduling method can be employed. A terminal first detects a sequence indicator, and if a sequence belonging to itself is detected, it is explicitly known that there is scheduled data after the sequence indicator, and the terminal can directly receive the PDSCH after the sequence indicator. This method can avoid the complexity of PDCCH blind detection and waste of terminal power consumption, and can efficiently transmit small size data packets and DCI for scheduling large size PDSCH data packets. However, due to the limited number of orthogonal sequences, if a corresponding sequence is configured for each terminal, the terminal cannot determine whether it should receive a downlink payload (DL Payload) or transmit an uplink payload (UL Payload) after detecting the sequence.

[0084] FIG. 6 is a schematic flowchart of a communication method 600 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method includes at least part of the following.

[0085] S610, a first communication device receives sequence indicator information;

[0086] S620, in a case where the first communication device detects a sequence corresponding to the first communication device from the sequence indicator information, the first communication device receives a first payload;

[0087] S630, in a case where the first communication device does not detect first data and / or first control information corresponding to the first communication device from the first payload, the first communication device transmits a second payload.

[0088] In an embodiment of the present application, a first communication device can receive sequence indicator information (Sequence-based indicator) transmitted by a second communication device. In some examples, the first communication device can be a terminal device, and the second communication device can be a network device. If the first communication device detects a sequence belonging to itself (i.e., a sequence corresponding to the first communication device) from the sequence indicator information, the first communication device can receive a first payload such as a downlink payload (DL Payload) transmitted by the second communication device. If the first communication device does not detect first data and / or first control information belonging to itself from the downlink payload, the first communication device can transmit a second payload such as an uplink payload (UL Payload) to the second communication device.

[0089] Since the sequence detection is a one-time detection, no multiple blind detection is needed, and the sequence detection is much lower in energy consumption than the information decoding based on channel coding. Only when the terminal detects the sequence configured for itself, the payload is received or transmitted, which can avoid unnecessary or premature opening of the demodulator and / or decoder. Moreover, the payload received or transmitted by the first communication device can transmit data. Therefore, the embodiments of the present application can save the energy consumption of the first communication device and improve the data transmission efficiency.

[0090] FIG. 7 is a schematic flowchart of a communication method 700 according to another embodiment of the present application. The method can include one or more features of the above-described methods. In an implementation, the method further includes:

[0091] S710, in the case that the first communication device does not detect the sequence corresponding to the first communication device from the sequence indication information, the first communication device does not receive the first payload and does not transmit the second payload.

[0092] In the embodiments of the present application, after the first communication device receives the sequence indication information, if the first communication device does not detect the sequence belonging to itself from the sequence indication information, the first communication device can not receive the first payload and can not transmit the second payload. In one case, the first communication device does not detect the sequence belonging to itself from the sequence indication information, and then stops receiving the information after the sequence indication information. In another case, the first communication device does not detect the sequence belonging to itself from the sequence indication information, and then stops decoding or demodulating the information received after the sequence indication information. In this way, unnecessary energy consumption of the first communication device can be reduced, and the transmission efficiency can be improved.

[0093] In an implementation, the first communication device receiving the first payload includes that the first communication device receives the first payload in the first resource. In the embodiments of the present application, if the first communication device detects the sequence belonging to itself from the sequence indication information, the first communication device can receive the first payload transmitted by the second communication device in the first resource. For example, if the first communication device detects the sequence belonging to itself from the sequence indication information, the first communication device continues to receive the first payload after the sequence indication information in the first resource. The position of the first resource or the position of the sequence indication information can be configured by high layer signaling, such as radio resource control (RRC), system information, etc.

[0094] In an embodiment, the first resource comprises N consecutive OFDM symbol transmissions, the sequence indication information is transmitted on a first OFDM symbol in the first resource, and the first payload is transmitted on the remaining N-1 OFDM symbols in the first resource, where N is greater than 1. In an embodiment, the first resource can be used to transmit the sequence indication information and the first payload. For example, the sequence indication information and the first payload can be transmitted using N consecutive OFDM symbols, the sequence indication information is transmitted on the first OFDM symbol, and the first payload is transmitted on the remaining N-1 OFDM symbols of the N consecutive OFDM symbols. If the first communication device detects the sequence indication information on the received first OFDM symbol, the first communication device can continue to receive the remaining N-1 OFDM symbols. If the first communication device does not detect the sequence indication information on the received first OFDM symbol, the first communication device can not continue to receive the remaining N-1 OFDM symbols. For another example, the first resource can also be understood as a transmission resource used to transmit the first payload. In this case, the remaining N-1 OFDM symbols of the N consecutive OFDM symbols in the above example can be the first resource.

[0095] FIG. 8 is a schematic flowchart of a communication method 800 according to another embodiment of the present application. The method can comprise one or more features of the above-described methods. In an embodiment, the method further comprises:

[0096] S810, in a case where the first communication device detects first data and / or first control information corresponding to the first communication device from the first payload, the first communication device does not transmit the second payload.

[0097] In an embodiment, if the first communication device, for example, a terminal device, detects first data and / or first control information belonging to the first communication device from the first payload, the first communication device can not transmit the second payload to the second communication device after the sequence indication information. The first data can be low data rate data, but is not limited thereto. In this way, unnecessary data transmission can be reduced, and the energy consumption of the first communication device can be reduced. The first data detected by the first communication device can be low data rate downlink data. The first control information detected by the first communication device can be DCI.

[0098] In an embodiment, the first load is a downlink load for receiving downlink control information (DCI) and / or first downlink data. The first downlink data can be low data rate data, but is not limited thereto. In the embodiments of the present application, if the first communication device, such as a terminal device, detects the first downlink data and / or DCI corresponding to the terminal device from the downlink load, the terminal device can not send an uplink load to a second communication device, such as a network device, after the sequence indication information. In this way, unnecessary data transmission can be reduced, the energy consumption of the terminal device can be reduced, and the terminal device can save power.

[0099] In an embodiment, the method further includes: in a case where the first communication device detects first control information corresponding to the first communication device from the first load, the first communication device sends or receives second data in a resource designated by the first control information. In an embodiment, the second data can be high data rate data, but is not limited thereto.

[0100] In an embodiment, the first control information is DCI, and the second data includes second downlink data and / or first uplink data.

[0101] In an embodiment, the first communication device receives second data in a resource designated by the first control information, including: in a case where the first resource is a designated downlink resource, the first control information is DCI for downlink scheduling, and the second data is second downlink data, the first communication device receives the second downlink data in a downlink resource designated by scheduling information in the DCI for downlink scheduling. In an embodiment, the second downlink data is high data rate data, but is not limited thereto.

[0102] In the embodiments of the present application, if the first communication device, such as a terminal device, detects a sequence corresponding to the terminal device from the sequence indication information, the terminal device can receive a downlink load in a specific downlink resource after the sequence indication information. If the terminal device detects downlink DCI corresponding to the terminal device from the downlink load, the terminal device can receive downlink data, such as high data rate downlink data, in a downlink resource designated by scheduling information in the downlink DCI.

[0103] In an embodiment, the first communication device sends second data in a resource designated by the first control information, including: in a case where the first resource is a designated uplink resource, the first control information is DCI for uplink scheduling, and the second data is first uplink data, the first communication device sends the first uplink data in an uplink resource designated by scheduling information in the DCI for uplink scheduling. In an embodiment, the first uplink data is high data rate data, but is not limited thereto.

[0104] In the embodiment of the present application, if the first communication device, for example, the terminal device, detects the sequence corresponding to the terminal device from the sequence indication information, the terminal device can receive the downlink payload in the specific downlink resource after the sequence indication information. If the terminal device detects the uplink DCI belonging to itself from the downlink payload, the terminal device can send the uplink data, for example, the uplink data with a higher data rate, in the uplink resource specified by the scheduling information in the uplink DCI.

[0105] In an implementation, the second resource for sending the second payload is located at a time domain resource position after the sequence indication information and / or the first payload. In the embodiment of the present application, if the first communication device does not detect the first data and / or the first control information belonging to itself from the received first payload, the first communication device can send the second payload to the second communication device in the second resource.

[0106] In an implementation, the second payload is an uplink payload, which is used to send the second uplink data and / or the uplink control information (UCI). The second uplink data can be the data with a low data rate, but is not limited thereto. In the embodiment of the present application, if the first communication device, for example, the terminal device, does not detect the first downlink data and / or the downlink control information belonging to itself from the received downlink payload, the first communication device can send the uplink payload to the second communication device, for example, the network device, in the specific uplink resource (an example of the second resource) after the sequence indication information.

[0107] In an implementation, the uplink payload is sent at a position with a time domain offset after the sequence indication information and / or the downlink payload. For example, if the terminal device does not detect the first downlink data and / or the downlink control information belonging to itself from the received downlink payload, the terminal device can send the uplink payload to the network device at a position with a certain time domain offset after the sequence indication information or the downlink payload.

[0108] In an implementation, the time slot where the uplink payload is located is the Kth time slot after the time slot where the sequence indication information and / or the downlink payload is located. For example, if the terminal device does not detect the downlink data and / or the downlink control information belonging to itself from the received downlink payload, the terminal device can send the uplink payload to the network device in the S1th symbol of the Kth time slot after the sequence indication information or the downlink payload.

[0109] In an embodiment, the method further comprises: receiving, by the first communication device, first configuration information, wherein the first configuration information comprises information of the K and information of a symbol number S1 of the first symbol of the uplink payload in a time slot where the uplink payload is located. In the embodiment, the first communication device can receive the first configuration information sent by the second communication device. The second resource can be indicated by the first configuration information. For example, the starting position of the second resource can be the S1th symbol of the Kth time slot after the sequence indication information or the downlink payload.

[0110] In an embodiment, the first symbol of the uplink payload is the S2th symbol after the symbol where the sequence indication information and / or the downlink payload is located. For example, if the terminal device does not detect the downlink data and / or the downlink control information belonging to the terminal device from the received downlink payload, the terminal device can send the uplink payload to the network device at the S2th symbol after the sequence indication information or the downlink payload.

[0111] In an embodiment, the method further comprises: receiving, by the first communication device, second configuration information, wherein the second configuration information comprises information of the S2. In the embodiment, the first communication device can receive the second configuration information sent by the second communication device. The second resource can be indicated by the second configuration information. For example, the starting position of the second resource can be the S2th symbol after the sequence indication information or the downlink payload.

[0112] In an embodiment, the uplink resource available for the first communication device to send the uplink payload periodically appears in the time domain. In the embodiment, if the first communication device, for example, the terminal device, does not detect the downlink data and / or the downlink control information belonging to the terminal device from the received downlink payload, the first communication device can send the uplink payload in a certain period after the sequence indication information and / or the downlink payload.

[0113] In an embodiment, the first communication device sends the uplink payload on the first uplink resource available for the first communication device to send the uplink payload after the sequence indication information and / or the downlink payload. In the embodiment, the first communication device can send the uplink payload in the first period after the period where the sequence indication information and / or the downlink payload is located. If the transmission of the sequence indication information and / or the downlink payload does not occupy the uplink resource available for the first communication device to send the uplink payload in the current period, the first communication device can send the uplink payload in the current period. If the transmission of the sequence indication information and / or the downlink payload occupies the uplink resource available for the first communication device to send the uplink payload in the current period, the first communication device can send the uplink payload in the next period.

[0114] In an embodiment, the period in which the uplink resource available for the first communication device to send the uplink payload appears is P time slots. For example, the period in which the terminal device is located includes P time slots, the sequence indication information is transmitted in the first time slot of the period, and the terminal device can send the uplink payload in the second to P time slots of the period. For another example, the period in which the terminal device is located includes P time slots, the sequence indication information is transmitted in the first time slot of the period, the downlink payload is transmitted in the second to fifth time slots of the first time slot of the period, and the terminal device can send the uplink payload in the sixth to P time slots of the period. For another example, the period in which the terminal device is located includes P time slots, the sequence indication information is transmitted in the first time slot of the period, and the terminal device can send the uplink payload in the second to fifth time slots of the first time slot of the period. If the uplink resource available for the first communication device to send the uplink payload is the third to P time slots of each period, the terminal device can send the uplink payload in the third to P time slots of the next period.

[0115] In an embodiment, the method further includes that the first communication device receives third configuration information, the third configuration information including one or more of the following: information of the P, the time slot number of the time slot in which the uplink resource of the uplink payload is located within a period, and the symbol number of the first symbol of the uplink payload within the time slot.

[0116] In the embodiments of the present application, the first communication device can receive the third configuration information sent by the second communication device. The second resource can be indicated by the third configuration information.

[0117] For example, the starting position of the second resource can be the time slot number K1 of the time slot in which the sequence indication information is located within a period, the time slot number K2 of the time slot in which the downlink payload is located within a period, and the time slot number K3 of the time slot in which the uplink resource of the uplink payload is located within a period. If K3 is before K1 or K2, the terminal device can send the uplink payload in the time slot K3 of the next period. If K3 is after K1, the terminal device can send the uplink payload in the time slot K3 of the current period. If K3 is after K2, the terminal device can send the uplink payload in the time slot K3 of the current period. If K3 is after K1 and before K2, the terminal device can send the uplink payload in the time slot K3 of the next period.

[0118] For another example, the starting position of the second resource can be the time slot number K1 of the time slot in which the sequence indication information is located in a period, the time slot number K2 of the time slot in which the downlink payload is located in a period, the time slot number K3 of the time slot in which the uplink payload is located in a period, and the first symbol of the uplink payload is the symbol S1 in the time slot K3. If K3 is before K1 or K2, the terminal device can send the uplink payload at the symbol S1 in the time slot K3 in the next period. If K3 is after K1, the terminal device can send the uplink payload at the symbol S1 in the time slot K3 in the current period. If K3 is after K2, the terminal device can send the uplink payload at the symbol S1 in the time slot K3 in the current period. If K3 is after K1 and before K2, the terminal device can send the uplink payload at the symbol S1 in the time slot K3 in the next period.

[0119] In an embodiment, the method further includes that the first communication device receives fourth configuration information, and the fourth configuration information includes frequency domain resource information of the uplink payload. In the embodiment of the present application, the first communication device can receive the third configuration information sent by the second communication device. The second resource indicated by the third configuration information can include frequency domain resource. If the first communication device, for example, the terminal device, does not detect the downlink data and / or the downlink control information belonging to itself from the received downlink payload, the first communication device can send the uplink payload to the second communication device, for example, the network device, in the frequency domain resource indicated by the fourth configuration information.

[0120] In an embodiment, the frequency domain resource information includes resource block number and / or resource block group number of the uplink resource of the uplink payload. For example, if the terminal device does not detect the downlink data and / or the downlink control information belonging to itself from the received downlink payload, the terminal device can send the uplink payload to the network device in the resource block number and / or the resource block group number indicated by the fourth configuration information.

[0121] In the embodiment of the present application, one or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can be transmitted in the same signaling or different signaling.

[0122] In an embodiment, the configuration information is radio resource control (RRC) configuration signaling or system information. In the embodiments of the present application, one or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can be transmitted in the same RRC configuration signaling, or can be transmitted in different RRC configuration signaling. One or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can be transmitted in system signaling, or can be transmitted in different system signaling. For example, the first configuration information is transmitted in first RRC configuration signaling, the third configuration information is transmitted in second RRC configuration signaling, and the fourth configuration information is transmitted in second system signaling.

[0123] In an embodiment, the configuration information includes the time domain length of the uplink load. In the embodiments of the present application, one or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can include the time domain length of the uplink load, for example, the number L of symbols included in the uplink load.

[0124] In an embodiment, the configuration information includes information about the format of the DCI that can be detected in the downlink load. In the embodiments of the present application, one or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can include information about the format of the DCI that can be detected in the downlink load, for example, DCI0, DCI1, DCI1A, DCI1B, DCI1C, DCI1D, DCI2, DCI2A, DCI2B, DCI3, DCI3A, and the like.

[0125] In an embodiment, the configuration information is universal, or specific to each bandwidth part (BWP) or cell. In the embodiments of the present application, one or more of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information can be universal, or specific to each BWP or cell. For example, the fourth configuration information is universal, the first configuration information corresponds to BWP1, and the second configuration information corresponds to BWP2. For another example, the first configuration information is universal, the second configuration information corresponds to BWP3, and the third configuration information corresponds to cell1.

[0126] FIG. 9 is a schematic flowchart of a communication method 900 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method includes at least part of the following content.

[0127] S910, the second communication device transmits sequence indication information;

[0128] S920, in the case where the sequence indication information includes a sequence corresponding to the first communication device, the second communication device transmits a first load;

[0129] S930, in case that the first data and / or the first control information corresponding to the first communication device does not exist in the first load, the second communication device receives the second load.

[0130] FIG. 10 is a schematic flow chart of a communication method 1000 according to another embodiment of the present application. The method can comprise one or more features of the above-mentioned methods. In an implementation, the method further comprises:

[0131] S1010, in case that the sequence corresponding to the first communication device does not exist in the sequence indication information, the second communication device does not transmit the first load and does not receive the second load.

[0132] In an implementation, the second communication device transmitting the first load comprises: the second communication device transmitting the first load in the first resource.

[0133] In an implementation, the first resource comprises N continuous OFDM symbol transmissions, the sequence indication information is transmitted on the first OFDM symbol in the first resource, and the remaining N-1 OFDM symbols in the first resource transmit the first load, where N is greater than 1.

[0134] FIG. 11 is a schematic flow chart of a communication method 1100 according to another embodiment of the present application. The method can comprise one or more features of the above-mentioned methods. In an implementation, the method further comprises:

[0135] S1110, in case that the first data and / or the first control information corresponding to the first communication device exists in the first load, the second communication device does not receive the second load.

[0136] In an implementation, the first load is a downlink load, and the downlink load is used to receive DCI and / or first downlink data. In an implementation, the first downlink data is low data rate data, but is not limited thereto.

[0137] In an implementation, the method further comprises:

[0138] In case that the first control information corresponding to the first communication device exists in the first load, the second communication device receives or transmits second data in a resource specified by the first control information.

[0139] In an implementation, the first control information is DCI, and the second data comprises second downlink data and / or first uplink data.

[0140] In an implementation, the second communication device receiving or transmitting the second data in the resource specified by the first control information comprises one or more of:

[0141] In a case that the specified resource is a specified downlink resource, the first control information is DCI for downlink scheduling, and the second data is second downlink data, the second communication device transmits the second downlink data in a downlink resource specified by scheduling information in the DCI for downlink scheduling;

[0142] In a case that the specified resource is a specified uplink resource, the first control information is DCI for uplink scheduling, and the second data is first uplink data, the second communication device receives the first uplink data in an uplink resource specified by scheduling information in the DCI for uplink scheduling.

[0143] In an embodiment, the second downlink data and / or the first uplink data is high data rate data, but is not limited thereto.

[0144] In an embodiment, a second resource for transmitting the second payload is located at a time domain resource position after the sequence indication information and / or the first payload.

[0145] In an embodiment, the second payload is an uplink payload, and the uplink payload is used for transmitting second uplink data and / or UCI. In an embodiment, the second uplink data can be low data rate data, but is not limited thereto.

[0146] In an embodiment, the uplink payload is transmitted at a position with a time domain offset after the sequence indication information and / or a downlink payload.

[0147] In an embodiment, a time slot where the uplink payload is located is a Kth time slot after a time slot where the sequence indication information and / or the downlink payload is located.

[0148] In an embodiment, the method further comprises:

[0149] The second communication device transmits first configuration information, and the first configuration information comprises information of the K and information of a symbol number S1 of a first symbol of the uplink payload in a time slot where the uplink payload is located.

[0150] In an embodiment, the first symbol of the uplink payload is an S2th symbol after a symbol where the sequence indication information and / or the downlink payload is located.

[0151] In an embodiment, the method further comprises:

[0152] The second communication device transmits second configuration information, and the second configuration information comprises information of the S2.

[0153] In an embodiment, the uplink resources for the second communication device to receive the uplink payload occur periodically in time domain.

[0154] In an embodiment, the second communication device receives the uplink payload on the uplink resources for the first communication device to transmit the uplink payload after the sequence indication information and / or the downlink payload.

[0155] In an embodiment, the uplink resources for the second communication device to receive the uplink payload occur periodically with a period of P slots.

[0156] In an embodiment, the method further comprises:

[0157] The second communication device transmits third configuration information, the third configuration information comprising one or more of the following: information of the P, slot number of the slot where the uplink resources of the uplink payload are located within the period, and symbol number of the first symbol of the uplink payload within the slot.

[0158] In an embodiment, the method further comprises:

[0159] The second communication device transmits fourth configuration information, the fourth configuration information comprising frequency domain resource information of the uplink payload.

[0160] In an embodiment, the frequency domain resource information comprises resource block number and / or resource block group number where the uplink resources of the uplink payload are located.

[0161] In an embodiment, the configuration information is RRC configuration signaling or system information.

[0162] In an embodiment, the configuration information comprises time domain length of the uplink payload.

[0163] In an embodiment, the configuration information comprises information of format of DCI that can be detected in the downlink payload.

[0164] In an embodiment, the configuration information is common or dedicated to each bandwidth part (BWP) or cell.

[0165] The specific examples of the second communication device performing the method 900, 1000, 1100 of the present embodiment can refer to the above description of the second communication device in the method 600, 700, 800, and will not be repeated here for brevity.

[0166] The communication method of the embodiments of the present application can include a sequence-based uplink and downlink data scheduling method. The downlink payload (DL Payload) can not only transmit downlink control information, but also transmit small-size downlink data. The uplink payload (UL Payload) can also transmit small-size uplink data or uplink control information. In this way, for services with small data volume, the terminal can skip the downlink control information and directly receive low-data-rate downlink data or send low-data-rate uplink data, thereby saving a large amount of terminal power.

[0167] However, since the number of orthogonal sequences is limited, if a corresponding sequence is configured for each terminal, the terminal cannot determine whether it should receive the DL Payload or send the UL Payload after detecting the sequence. The embodiments of the present application can detect the DL Payload and the UL Payload in sequence, and determine whether to detect the UL Payload according to the detection result of the DL Payload. In this way, downlink scheduling or uplink scheduling can be flexibly implemented even if only one corresponding sequence is configured for each terminal, thereby saving the limited capacity of sequence-based indicator while achieving terminal power saving effect, and implementing more uplink and downlink scheduling of terminals.

[0168] Summary of the technical solutions:

[0169] A sequence-based uplink and downlink data scheduling method includes that a terminal first receives sequence-based indicator. If the terminal detects a sequence belonging to itself from the sequence-based indicator, the terminal receives the downlink payload (DL Payload), and when the terminal does not detect the downlink data or DCI belonging to itself from the DL Payload, the terminal sends the uplink payload (UL Payload) in a specific uplink resource.

[0170] In an embodiment, the terminal receives the DL Payload in a specific downlink resource, and the DL Payload is used to receive the downlink control information (DCI) and / or downlink data. Specifically, the sequence-based indicator and the DL Payload are transmitted in N (N>1) consecutive OFDM symbols. The sequence-based indicator is transmitted in the first OFDM symbol, and the DL Payload is transmitted in the remaining N-1 OFDM symbols.

[0171] In an embodiment, the UL Payload time domain resource determination method includes that the terminal sends the UL Payload in a specific uplink resource, and the UL Payload is used to send the uplink data and / or uplink control information (UCI).

[0172] Method 1: UL Payload is sent at a certain time domain offset position after sequence indication information or DL Payload.

[0173] Method 1a: The time slot where UL Payload is located is the Kth time slot after the time slot where sequence indication information or DL Payload is located. The terminal receives first configuration information, which contains the information of K and the symbol number S of the first symbol of UL Payload in the time slot where UL Payload is located.

[0174] The first configuration information is RRC configuration signaling or system information.

[0175] The first configuration information further includes the time domain length of UL Payload, i.e., the number L of symbols contained by UL Payload.

[0176] The first configuration information further includes the information of the format of DCI that can be detected in DL Payload.

[0177] A general first configuration information can be configured, or a dedicated first configuration information can be configured for each BWP or carrier.

[0178] Method 1b: The first symbol of UL Payload is the Sth symbol after the symbol where sequence indication information or DL Payload is located. The terminal receives second configuration information, which contains the information of S.

[0179] The second configuration information is RRC configuration signaling or system information.

[0180] The second configuration information further includes the time domain length of UL Payload, i.e., the number L of symbols contained by UL Payload.

[0181] The second configuration information further includes the information of the format of DCI that can be detected in DL Payload.

[0182] A general second configuration information can be configured, or a dedicated second configuration information can be configured for each BWP or carrier.

[0183] Method 2: The uplink resource available for the terminal to send UL Payload periodically appears in time domain, and the terminal sends UL Payload on the first uplink resource available for the terminal to send UL Payload after sequence indication information or DL Payload.

[0184] The period of the uplink resource available for the terminal to send the UL Payload is P slots. The terminal receives third configuration information, which contains one or more of the following: information of P, slot number of the slot where the uplink resource of the UL Payload is located, and symbol number of the first symbol of the UL Payload in the slot.

[0185] The third configuration information is RRC configuration signaling or system information.

[0186] The third configuration information further includes the time domain length of the UL Payload, i.e., the number of symbols L contained by the UL Payload.

[0187] The third configuration information further includes information of the format of the DCI that can be detected in the DL Payload.

[0188] The third configuration information can be configured commonly, or dedicated third configuration information can be configured for each BWP or carrier.

[0189] In an embodiment, the UL Payload frequency domain resource determination method includes: the terminal receives fourth configuration information, which contains the frequency domain resource information of the UL Payload.

[0190] Embodiment one: the process of switching between sequence-based downlink and uplink scheduling

[0191] In this embodiment, the terminal determines whether to detect the uplink payload (UL payload) according to the detection result of the sequence-based indicator and the downlink payload (DL payload). As shown in FIG. 12, the terminal first receives the sequence-based indicator (Receive the sequence-based indicator). The terminal checks whether a sequence corresponding to the terminal (a sequence configured to the terminal) is detected in the sequence-based indicator (Check if a sequence configured to the UE is detected in the sequence-based indicator). If the terminal does not detect the sequence corresponding to the terminal from the sequence-based indicator, the terminal neither receives the downlink payload (DL payload) in the specific downlink resource nor transmits the uplink payload (UL payload) in the specific uplink resource. For example, the terminal does not detect the downlink payload or the uplink payload, and the terminal goes to sleep (Not detect the DL Payload or UL Payload. UE goes to sleep.). If the terminal detects the sequence belonging to the terminal from the sequence-based indicator, the terminal receives the downlink payload in the specific downlink resource and detects the downlink payload (Detect the DL Payload). It is determined whether to transmit the UL payload in the specific downlink resource according to the detection result of the downlink payload. For example, the terminal can check whether the downlink payload contains the downlink data or the DCI belonging to the terminal (Check if the DL Payload contains DL data or DCI for this UE), that is:

[0192] If the terminal does not detect the data or the DCI belonging to the terminal from the downlink payload, the uplink payload is transmitted in the specific uplink resource. For example, the uplink data is transmitted in the uplink payload (Transmit UL data in UL Payload).

[0193] If the terminal detects the data or the DCI belonging to the terminal from the downlink payload, the uplink payload is not transmitted in the specific uplink resource. For example, the downlink data or the DCI is received in the downlink payload (Receive DL data or DCI in DL Payload).

[0194] As shown in FIG. 13, if the terminal does not detect the sequence corresponding to the terminal (the sequence configured to the UE) from the sequence indication information, the terminal neither receives the downlink payload (DL payload) in the specific downlink resource after the sequence indication information nor transmits the uplink payload (UL payload) in the specific uplink resource after the sequence indication information. Also, the terminal can enter the sleep mode. (The sequence configured to the UE is not detected. The UE does not receive DL payload or transmit UL payload in the certain resource after the Sequence-based indicator, and enters sleep mode.)

[0195] If the terminal detects the sequence corresponding to the terminal from the sequence indication information, the terminal receives the downlink payload in the specific downlink resource after the sequence indication information. If the terminal detects the downlink data belonging to itself (the downlink data of a lower data rate) from the downlink payload (DL Payload (Low-rate DL data detected)), the terminal does not transmit the uplink payload in the specific uplink resource after the sequence indication information. (The sequence configured to the UE is detected. The UE receives the DL Payload after the Sequence-based indicator, and has detected DL data. The UE does not transmit the UL Payload.)

[0196] If the terminal detects the sequence corresponding to the terminal from the sequence indication information, the terminal receives the downlink payload in the specific downlink resource after the sequence indication information. If the terminal does not detect the downlink data or DCI belonging to itself from the downlink payload (No DL data or DCI detected), the terminal transmits the uplink payload (transmits the low-rate uplink data) in the specific uplink resource after the sequence indication information. (The sequence configured to the UE is detected. The UE receives the DL Payload after the Sequence-based indicator, but has not detected DL data or DCI for the UE. The UE transmits the UL Payload in the certain resource after the Sequence-based indicator.)

[0197] If the terminal detects the sequence corresponding to the terminal from the sequence indication information, the terminal receives the downlink payload in the specific downlink resource after the sequence indication information. If the terminal does not detect the downlink data or DCI belonging to itself from the downlink payload (No DL data or DCI detected), the terminal transmits the uplink payload (transmits the low-rate uplink data) in the specific uplink resource after the sequence indication information. (The sequence configured to the UE is detected. The UE receives the DL Payload after the Sequence-based indicator, but has not detected DL data or DCI for the UE. The UE transmits the UL Payload in the certain resource after the Sequence-based indicator.)

[0198] If the terminal detects the sequence corresponding to the terminal from the sequence indication information, the terminal receives the downlink payload in the specific downlink resource after the sequence indication information. If the terminal detects the uplink DCI belonging to itself from the downlink payload, the terminal transmits the uplink data (which can be high-rate uplink data) in the uplink resource specified by the scheduling information in the uplink DCI. (The sequence configured to the UE is detected. The UE receives the DL Payload after the Sequence-based indicator, and has detected UL DCI. The UE transmits UL data in the resource scheduled by the UL DCI.)

[0199] The PDCCH based on blind detection is one of the main reasons for the terminal power consumption. The terminal receives the DCI by blind detection of the PDCCH, and then receives the downlink data channel (such as PDSCH) according to the scheduling information in the DCI. Even when the base station does not send the DCI for a certain terminal, the terminal must periodically perform blind detection on the PDCCH, causing high energy consumption on the terminal side. The scheduling based on sequence indication information in the embodiment can reduce the energy consumption of the terminal. Sequence detection is a one-time detection that does not require multiple blind detections, and sequence detection is much lower in energy consumption than DCI decoding based on channel coding (such as forward error correction (FEC)). Only when the terminal detects the sequence configured for itself, the DL Payload is received or the UL Payload is transmitted, thereby avoiding unnecessary opening of the demodulator and FEC decoder, demodulating and decoding the DL Payload, and also avoiding premature opening of the modulator and FEC encoder, modulating and encoding the UL Payload.

[0200] The DL Payload in the embodiment can not only transmit downlink control information, but also transmit small-size downlink data, and the UL Payload can also transmit small-size uplink data or uplink control information. In this way, for services with small data volume, the terminal can skip the downlink control information and directly receive low-data-rate downlink data or transmit low-data-rate uplink data, thereby saving a large amount of terminal power.

[0201] Since the number of orthogonal sequences is limited, if a corresponding sequence is configured for each terminal, the terminal cannot determine whether it should receive the DL Payload or send the UL Payload after detecting the sequence. The present embodiment can flexibly implement downlink scheduling or uplink scheduling in the case of configuring only one corresponding sequence for each terminal, thereby saving the limited capacity of the sequence-based indicator as much as possible while achieving the terminal power saving effect, and implementing uplink / downlink scheduling for more terminals.

[0202] Embodiment 2: Determining the uplink resource for sending the UL Payload based on the time domain displacement of the sequence indication information (Sequence-based indicator) or the DL Payload

[0203] If the terminal detects a sequence belonging to itself from the sequence indication information, and the terminal does not detect data or DCI belonging to itself from the DL Payload, the UL payload is sent in a specific uplink resource. The specific uplink resource can be determined based on the time domain displacement of the Sequence-based indicator or the DL Payload. As shown in FIG. 14A, the candidate time resources for uplink data can include the candidate resource for uplink data and the specific uplink resource of the uplink payload (e.g., low-rate uplink data) (UL Payload (Low-rate UL data)).

[0204] If the sequence configured to the UE is detected but the UE has not detected DL data or DCI for the UE in the DL Payload, the UE transmits the UL Payload in the UL resource with configured time difference from the Sequence-based indicator. As shown in FIG. 14B, the time-domain displacement of this specific UL resource from the Sequence-based indicator can be configured to the UE by RRC signaling or system information. The indication of the time-domain displacement from the Sequence-based indicator to the first symbol of the UL Payload can be in "symbol level" or "slot + symbol level". If "symbol level" indication is used, the first symbol of the UL Payload is located at the S-th symbol after the symbol where the Sequence-based indicator is located. The RRC signaling or system information contains the information of S. If "slot + symbol level" is used, the slot where the UL Payload is located is the K-th slot after the slot where the Sequence-based indicator or the DL Payload is located. The RRC signaling or system information contains the information of K and the symbol number S of the first symbol of the UL Payload in the slot where the UL Payload is located. According to the slot where the Sequence-based indicator is located and the value of K, the slot where the UL Payload is located can be determined. Then according to the value of S, the first symbol of the UL Payload can be determined to be located at the S-th symbol in the slot.

[0205] If the sequence configured to the UE is detected but the UE has not detected DL data or DCI for the UE in the DL Payload. the UE transmits the UL Payload in the UL resource with configured time difference from the DL Payload. As shown in FIG. 14B, the time-domain shift of the specific UL resource relative to the DL Payload can be configured to the UE by RRC signaling or system information. The time-domain shift from the first symbol of the DL Payload to the first symbol of the UL Payload can also be indicated by a "symbol level" or "slot + symbol level" method. If the "symbol level" indication is used, the first symbol of the UL Payload is located at the Sth symbol after the first symbol of the DL Payload. The RRC signaling or system information contains the information of S. If the "slot + symbol level" is used, the slot where the UL Payload is located is located at the Kth slot after the slot where the DL Payload is located. The RRC signaling or system information contains the information of K and the symbol number S of the first symbol of the UL Payload in the slot where the UL Payload is located. According to the slot where the DL Payload is located and the value of K, the slot where the UL Payload is located can be determined. Then according to the value of S, the first symbol of the UL Payload in the slot can be determined.

[0206] In this embodiment, the scheduling based on the sequence indication information avoids the terminal detecting the DCI, thereby reducing the energy consumption of the terminal. In addition to the time-domain resource of the DL Payload being configured after the Sequence-based indicator, the time-domain position of the UL Payload can be determined by configuring the time-domain shift relative to the Sequence-based indicator or the DL Payload. In this way, even if the sequence indication information cannot indicate the time-domain positions of the DL Payload and the UL Payload, the resources of the DL Payload and the UL Payload can still be scheduled.

[0207] In addition, the downlink scheduling or uplink scheduling can be flexibly implemented in the case of configuring only one corresponding sequence for each terminal, so that the limited capacity of the sequence-based indicator can be saved as much as possible while realizing the terminal power saving effect, and more terminals can be scheduled.

[0208] Embodiment Three: If the terminal detects the sequence belonging to itself from the sequence-based indicator, and the terminal detects the data or DCI belonging to itself from the DL Payload, the terminal transmits the UL Payload in the specific uplink resource. The specific uplink resource can also be determined based on a series of uplink resources available for the terminal to transmit the UL Payload.

[0209] As shown in FIG. 15, if the terminal detects the configured sequence, but the terminal does not detect the downlink data or DCI in the downlink payload, the terminal can transmit the uplink payload in the first candidate resource after the downlink payload. (If the sequence configured to the UE is detected but the UE has not detected DL data or DCI for the UE in the DL Payload. the UE transmits the UL Payload in the first candidate resource after the DL Payload.) The terminal can first determine a series of uplink resources available for the terminal to transmit the UL Payload according to the configuration information of the network. For example, the uplink resources available for the terminal to transmit the UL Payload appear periodically with a period of P slots. The terminal receives the configuration information sent by the network, which contains the information of P, the slot number of the uplink resource of the UL Payload in the period, and the symbol number of the first symbol of the UL Payload in the slot.

[0210] Then, if the terminal detects the sequence belonging to itself from the sequence indication information, and the terminal does not detect the data or DCI belonging to itself from the DL Payload, the terminal transmits the UL Payload on the first uplink resource available for the terminal to transmit the UL Payload after the sequence indication information or the DL Payload.

[0211] In this embodiment, the scheduling based on the sequence indication information avoids the terminal detecting the DCI, thereby reducing the energy consumption of the terminal. In addition to the time domain resource of the DL Payload being configured after the sequence-based indicator, the time domain position of the UL Payload can be configured by first configuring a series of uplink resources available for the terminal to transmit the UL Payload, and then selecting the first uplink resource available for the terminal to transmit the UL Payload after the sequence indication information or the DL Payload when the terminal detects the sequence belonging to itself from the sequence indication information and does not detect the data or DCI belonging to itself from the DL Payload, and transmitting the UL Payload. In this way, even if the sequence indication information cannot indicate the time domain positions of the DL Payload and the UL Payload, the resources of the DL Payload and the UL Payload can still be scheduled.

[0212] FIG. 16 is a schematic block diagram of a first communication device 1600 according to an embodiment of the present application. The first communication device 1600 can include:

[0213] The transceiver 1610 is configured to receive sequence indication information by the first communication device, receive a first payload in a case where the first communication device detects a sequence corresponding to the first communication device from the sequence indication information, and transmit a second payload in a case where the first communication device does not detect first data and / or first control information corresponding to the first communication device from the first payload.

[0214] In an embodiment, the first communication device 1600 further comprises a processing unit configured to detect whether there is a sequence corresponding to the first communication device in the sequence indication information. The processing unit is further configured to detect whether there is first data and / or first control information corresponding to the first communication device in the first load.

[0215] In an embodiment, the transceiver 1610 is further configured to not receive the first load and not transmit the second load if the first communication device does not detect a sequence corresponding to the first communication device in the sequence indication information.

[0216] In an embodiment, the transceiver 1610 is configured to receive the first load in the first resource.

[0217] In an embodiment, the first resource comprises N consecutive Orthogonal Frequency Division Multiplexing, OFDM, symbol transmissions, a first OFDM symbol in the first resource is used to transmit the sequence indication information, and the remaining N-1 OFDM symbols in the first resource are used to transmit the first load, where N is greater than 1.

[0218] In an embodiment, the transceiver 1610 is further configured to not transmit the second load if the first communication device detects first data and / or first control information corresponding to the first communication device in the first load. In an embodiment, the first data can be low data rate data, but is not limited thereto.

[0219] In an embodiment, the first load is a downlink load, and the downlink load is used to receive DCI and / or first downlink data. In an embodiment, the first downlink data can be low data rate data, but is not limited thereto.

[0220] In an embodiment, the transceiver 1610 is further configured to transmit or receive second data in a resource specified by the first control information if the first communication device detects first control information corresponding to the first communication device in the first load.

[0221] In an embodiment, the first control information is DCI, and the second data comprises second downlink data and / or first uplink data.

[0222] In an embodiment, the transceiver 1610 is configured to receive the second downlink data in a downlink resource specified by scheduling information in the DCI for downlink scheduling if the specified resource is a specified downlink resource, the first control information is the DCI for downlink scheduling, and the second data is second downlink data.

[0223] In an embodiment, the transceiver 1610 is configured to transmit the first uplink data in an uplink resource specified by scheduling information in the DCI for uplink scheduling, in the case that the designated resource is a designated uplink resource, the first control information is the DCI for uplink scheduling, and the second data is the first uplink data.

[0224] In an embodiment, the second downlink data and / or the first uplink data is high data rate data, but the application is not limited thereto.

[0225] In an embodiment, the second resource for transmitting the second payload is located at a time domain resource position after the sequence indication information and / or the first payload.

[0226] In an embodiment, the second payload is an uplink payload for transmitting second uplink data and / or uplink control information (UCI). In an embodiment, the second uplink data can be low data rate data, but the application is not limited thereto.

[0227] In an embodiment, the uplink payload is transmitted at a position with a time domain offset after the sequence indication information and / or the downlink payload.

[0228] In an embodiment, the time slot in which the uplink payload is located is the Kth time slot after the time slot in which the sequence indication information and / or the downlink payload is located.

[0229] In an embodiment, the transceiver 1610 is further configured to receive first configuration information including information of the K and information of a symbol number S1 of a first symbol of the uplink payload in a time slot in which the uplink payload is located.

[0230] In an embodiment, the first symbol of the uplink payload is the S2th symbol after the symbol in which the sequence indication information and / or the downlink payload is located.

[0231] In an embodiment, the transceiver 1610 is further configured to receive second configuration information including information of the S2.

[0232] In an embodiment, the uplink resource available for the first communication device to transmit the uplink payload occurs periodically in the time domain.

[0233] In an embodiment, the first communication device transmits the uplink payload on the first uplink resource available for the first communication device to transmit the uplink payload after the sequence indication information and / or the downlink payload.

[0234] In an embodiment, the uplink resource available for the first communication device to transmit the uplink payload occurs periodically with a period of P time slots.

[0235] In an embodiment, the transceiver 1610 is further configured to receive third configuration information, wherein the third configuration information comprises one or more of the following: information of the P, time slot number of a time slot in which the uplink resource of the uplink payload is located in a period, and symbol number of a symbol in which the first symbol of the uplink payload is located in the time slot.

[0236] In an embodiment, the transceiver 1610 is further configured to receive fourth configuration information, wherein the fourth configuration information comprises frequency domain resource information of the uplink payload.

[0237] In an embodiment, the frequency domain resource information comprises resource block number and / or resource block group number of the uplink resource of the uplink payload.

[0238] In an embodiment, the configuration information is radio resource control (RRC) configuration signaling or system information.

[0239] In an embodiment, the configuration information comprises time domain length of the uplink payload.

[0240] In an embodiment, the configuration information comprises information of format of the DCI that can be detected in the downlink payload.

[0241] In an embodiment, the configuration information is common or dedicated to each BWP or cell.

[0242] The first communication device 1600 of the embodiments of the present application can realize the corresponding functions of the first communication device in the foregoing method embodiments. The corresponding processes, functions, implementation manners, and beneficial effects of each module (sub-module, unit, or component, etc.) in the first communication device 1600 can be referred to the corresponding description in the foregoing method embodiments, which will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit, or component, etc.) in the first communication device 1600 of the embodiments of the present application can be realized by different modules (sub-modules, units, or components, etc.), or can be realized by the same module (sub-module, unit, or component, etc.).

[0243] FIG. 17 is a schematic block diagram of a second communication device 1700 according to an embodiment of the present application. The second communication device 1700 can comprise:

[0244] The transceiver 1710 is configured to transmit sequence indication information, transmit a first payload in a case where there is a sequence corresponding to the first communication device in the sequence indication information, and receive a second payload in a case where there is no first data and / or first control information corresponding to the first communication device in the first payload.

[0245] In an embodiment, the transceiver 1710 is further configured to not transmit the first load and not receive the second load in case there is no sequence corresponding to the first communication device in the sequence indication information.

[0246] In an embodiment, the transceiver 1710 is configured to transmit the first load in the first resource.

[0247] In an embodiment, the first resource comprises N consecutive Orthogonal Frequency Division Multiplexing, OFDM, symbol transmissions, the sequence indication information is transmitted on the first OFDM symbol in the first resource, and the remaining N-1 OFDM symbols in the first resource are used to transmit the first load, where N is greater than 1.

[0248] In an embodiment, the transceiver 1710 is further configured to not receive the second load in case there is first data and / or first control information corresponding to the first communication device in the first load. In an embodiment, the first data can be low data rate data, but is not limited thereto.

[0249] In an embodiment, the first load is a downlink load, and the downlink load is used to receive DCI and / or first downlink data. In an embodiment, the first downlink data can be low data rate data, but is not limited thereto.

[0250] In an embodiment, the transceiver 1710 is further configured to receive or transmit second data in a resource specified by the first control information in case there is first control information corresponding to the first communication device in the first load.

[0251] In an embodiment, the first control information is DCI, and the second data comprises second downlink data and / or first uplink data.

[0252] In an embodiment, the transceiver 1710 is configured to transmit the second downlink data in a downlink resource specified by scheduling information in the DCI for downlink scheduling in case the specified resource is a specified downlink resource, the first control information is the DCI for downlink scheduling, and the second data is the second downlink data.

[0253] In an embodiment, the transceiver 1710 is configured to receive the first uplink data in an uplink resource specified by scheduling information in the DCI for uplink scheduling in case the specified resource is a specified uplink resource, the first control information is the DCI for uplink scheduling, and the second data is the first uplink data.

[0254] In an embodiment, the second downlink data and / or the first uplink data is high data rate data, but is not limited thereto.

[0255] In an embodiment, the second resource for sending the second payload is located at a time domain resource position after the sequence indication information and / or the first payload.

[0256] In an embodiment, the second payload is an uplink payload, and the uplink payload is used for sending a second uplink data and / or UCI. In an embodiment, the second uplink data can be low data rate data, but is not limited thereto.

[0257] In an embodiment, the uplink payload is sent at a time domain offset position after the sequence indication information and / or the downlink payload.

[0258] In an embodiment, the time slot where the uplink payload is located is the Kth time slot after the time slot where the sequence indication information and / or the downlink payload is located.

[0259] In an embodiment, the transceiver 1710 is further configured to send first configuration information, and the first configuration information includes one or more of the following: information of the K, information of a symbol number S1 of a first symbol of the uplink payload in a time slot where the uplink payload is located.

[0260] In an embodiment, the first symbol of the uplink payload is the S2th symbol after the symbol where the sequence indication information and / or the downlink payload is located.

[0261] In an embodiment, the transceiver 1710 is further configured to send second configuration information, and the second configuration information includes information of the S2.

[0262] In an embodiment, the uplink resource for the second communication device to receive the uplink payload occurs periodically in time domain.

[0263] In an embodiment, the second communication device receives the uplink payload on the uplink resource for the first communication device to send the uplink payload for the first time after the sequence indication information and / or the downlink payload.

[0264] In an embodiment, the uplink resource for the second communication device to receive the uplink payload occurs periodically with a period of P time slots.

[0265] In an embodiment, the transceiver 1710 is further configured to send third configuration information, and the third configuration information includes one or more of the following: information of the P, a time slot number of a time slot where the uplink resource of the uplink payload is located within a period, and a symbol number of a first symbol of the uplink payload within a time slot.

[0266] In an embodiment, the transceiver 1710 is further configured to send fourth configuration information, and the fourth configuration information includes frequency domain resource information of the uplink payload.

[0267] In an embodiment, the frequency domain resource information comprises a resource block number and / or a resource block group number of the uplink resource of the uplink load.

[0268] In an embodiment, the configuration information is RRC configuration signaling or system information.

[0269] In an embodiment, the time domain length of the uplink load is comprised in the configuration information.

[0270] In an embodiment, information of a format of the DCI that can be detected in the downlink load is comprised in the configuration information.

[0271] In an embodiment, the configuration information is common or dedicated to each bandwidth part (BWP) or cell.

[0272] The second communication device 1700 of the embodiments of the present application can realize the corresponding functions of the second communication device in the foregoing method embodiments. The corresponding processes, functions, implementation manners, and beneficial effects of each module (sub-module, unit, or component, etc.) in the second communication device 1700 can be referred to the corresponding description in the foregoing method embodiments, which will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit, or component, etc.) in the second communication device 1700 of the embodiments of the present application can be realized by different modules (sub-modules, units, or components, etc.), or can be realized by the same module (sub-module, unit, or component, etc.).

[0273] FIG. 18 is a schematic structural diagram of a communication device 1800 according to the embodiments of the present application. The communication device 1800 comprises a processor 1810, which can call and run a computer program from a memory to enable the communication device 1800 to implement the method in the embodiments of the present application.

[0274] In an embodiment, the communication device 1800 can further comprise a memory 1820. The processor 1810 can call and run a computer program from the memory 1820 to enable the communication device 1800 to implement the method in the embodiments of the present application.

[0275] The memory 1820 can be a separate device independent of the processor 1810, or can be integrated in the processor 1810.

[0276] In an embodiment, the communication device 1800 can further comprise a transceiver 1830, and the processor 1810 can control the transceiver 1830 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0277] The transceiver 1830 can include a transmitter and a receiver. The transceiver 1830 can further include an antenna, and the number of the antennas can be one or more.

[0278] In an embodiment, the communication device 1800 can be a first communication device of the embodiments, and the communication device 1800 can implement the corresponding procedures implemented by the first communication device in the methods of the embodiments. For brevity, details are not described herein.

[0279] In an embodiment, the communication device 1800 can be a second communication device of the embodiments, and the communication device 1800 can implement the corresponding procedures implemented by the second communication device in the methods of the embodiments. For brevity, details are not described herein.

[0280] FIG. 19 is a schematic structural diagram of a chip 1900 according to an embodiment of the present application. The chip 1900 includes a processor 1910, which can call and run a computer program from a memory to implement the methods in the embodiments.

[0281] In an embodiment, the chip 1900 can further include a memory 1920. The processor 1910 can call and run a computer program from the memory 1920 to implement the methods performed by the first communication device or the second communication device in the embodiments.

[0282] The memory 1920 can be a separate device independent of the processor 1910, or can be integrated in the processor 1910.

[0283] In an embodiment, the chip 1900 can further include an input interface 1930. The processor 1910 can control the input interface 1930 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

[0284] In an embodiment, the chip 1900 can further include an output interface 1940. The processor 1910 can control the output interface 1940 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

[0285] In an embodiment, the chip can be applied to the first communication device in the embodiments, and the chip can implement the corresponding procedures implemented by the first communication device in the methods of the embodiments. For brevity, details are not described herein.

[0286] In an embodiment, the chip can be applied to the first communication device in the embodiments of the present application, and the chip can implement the corresponding procedures implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0287] The chip applied to the first communication device and the second communication device can be the same chip or different chips.

[0288] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, a system chip, a chip system or a system-on-chip, etc.

[0289] The processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above can be a microprocessor or any conventional processor, etc.

[0290] The memory mentioned above can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM).

[0291] It should be understood that the above-mentioned memory is an example but not a limiting description, for example, the memory in the embodiments of the present application can also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM) and the like. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable type of memory.

[0292] Figure 20 is a schematic block diagram of a communication system 2000 according to embodiments of the present application. The communication system 2000 includes a first communication device 2010 and a second communication device 2020.

[0293] The first communication device 2010 is configured to receive sequence indication information, receive a first payload in a case that the first communication device detects a sequence corresponding to the first communication device from the sequence indication information, and transmit a second payload in a case that the first communication device does not detect first data and / or first control information corresponding to the first communication device from the first payload.

[0294] The second communication device 2020 is configured to transmit sequence indication information, transmit a first payload in a case that there is a sequence corresponding to the first communication device in the sequence indication information, and receive a second payload in a case that there is no first data and / or first control information corresponding to the first communication device in the first payload.

[0295] The first communication device 2010 can be configured to implement the corresponding functions of the first communication device in the above-mentioned methods, and the second communication device 2020 can be configured to implement the corresponding functions of the second communication device in the above-mentioned methods. For the sake of brevity, they will not be described here again.

[0296] In the above embodiments, all or part of the processes can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the processes can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, the computer instructions generate all or part of the processes or functions in the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center through a wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. containing one or more available media sets. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, solid state disk (SSD)), etc.

[0297] It should be understood that the size of the sequence number of each process described above in various embodiments of the present application does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0298] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0299] The above only describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for communication, comprising: receiving, by a first communication device, sequence indication information; receiving, by the first communication device, a first load in a case that the first communication device detects a sequence corresponding to the first communication device from the sequence indication information; transmitting, by the first communication device, a second load in a case that the first communication device does not detect first data and / or first control information corresponding to the first communication device from the first load.

2. The method of claim 1, wherein, The method further comprises: not receiving, by the first communication device, the first load and not transmitting, by the first communication device, the second load in a case that the first communication device does not detect a sequence corresponding to the first communication device from the sequence indication information.

3. The method of claim 1 or 2, wherein, receiving, by the first communication device, a first load, comprising: receiving, by the first communication device, the first load in a first resource.

4. The method of claim 3, wherein, The first resource comprises N consecutive orthogonal frequency division multiplexing (OFDM) symbol transmissions, a first OFDM symbol in the first resource is used to transmit the sequence indication information, and remaining N-1 OFDM symbols in the first resource are used to transmit the first load, wherein N is greater than 1.

5. The method of any one of claims 1 to 4, wherein, The method further comprises: not transmitting, by the first communication device, the second load in a case that the first communication device detects first data and / or first control information corresponding to the first communication device from the first load.

6. The method of any one of claims 1 to 5, wherein, The first load is a downlink load, and the downlink load is used to receive downlink control information (DCI) and / or first downlink data.

7. The method of claim 6, wherein, The first downlink data is low data rate data.

8. The method of claim 6, wherein, The method further comprises: transmitting or receiving, by the first communication device, second data in a resource specified by the first control information in a case that the first communication device detects first control information corresponding to the first communication device from the first load.

9. The method of claim 8, wherein, The first control information is DCI, and the second data comprises second downlink data and / or first uplink data.

10. The method of claim 9, wherein, The second downlink data and / or the first uplink data is high data rate data.

11. The method of any one of claims 1 to 10, wherein, A second resource for transmitting the second load is located at a time domain resource position after the sequence indication information and / or the first load.

12. The method of any one of claims 1 to 11, wherein, The second load is an uplink load, and the uplink load is used to transmit second uplink data and / or uplink control information (UCI).

13. The method of claim 12, wherein, The second uplink data is low data rate data.

14. The method of claim 12 or 13, wherein, The uplink load is transmitted at a position with a time domain offset after the sequence indication information and / or a downlink load.

15. The method of claim 14, wherein, A time slot in which the uplink load is located is a Kth time slot after a time slot in which the sequence indication information and / or the downlink load is located.

16. The method of claim 15, wherein, The method further comprises: receiving, by the first communication device, first configuration information, wherein the first configuration information comprises information of K and information of a symbol number S1 of a first symbol of the uplink load in a time slot in which the uplink load is located.

17. The method of claim 14, wherein, The first symbol of the uplink load is an S2th symbol after a symbol in which the sequence indication information and / or the downlink load is located.

18. The method of claim 17, wherein, The method further comprises: receiving, by the first communication device, second configuration information, wherein the second configuration information comprises information of S2.

19. The method of claim 12 or 13, wherein, The uplink resource available for the first communication device to send the uplink payload periodically occurs in time domain.

20. The method of claim 19, wherein, The first communication device sends the uplink payload on the first uplink resource available for the first communication device to send the uplink payload after the sequence indication information and / or the downlink payload.

21. The method of claim 19 or 20, wherein, The period in which the uplink resource available for the first communication device to send the uplink payload occurs is P slots.

22. The method of claim 21, wherein, The method further comprises: The first communication device receives third configuration information, wherein the third configuration information comprises one or more of the following: information of P, slot number of the slot in which the uplink resource of the uplink payload occurs in a period, and symbol number of the first symbol of the uplink payload in the slot.

23. The method of any one of claims 12 to 22, wherein, The method further comprises: The first communication device receives fourth configuration information, wherein the fourth configuration information comprises frequency domain resource information of the uplink payload.

24. The method of claim 23, wherein, The frequency domain resource information comprises resource block number and / or resource block group number in which the uplink resource of the uplink payload is located.

25. The method of claim 16, 18, 22, 23, or 24, wherein, The configuration information is radio resource control (RRC) configuration signaling or system information.

26. The method of claim 16, 18, 22, 23, or 24, wherein, The configuration information comprises time domain length of the uplink payload.

27. The method of claim 16, 18, 22, 23, or 24, wherein, The configuration information comprises information of format of DCI that can be detected in the downlink payload.

28. The method of claim 16, 18, 22, 23, or 24, wherein, The configuration information is common or specific to each bandwidth part (BWP) or cell.

29. A communication method, comprising: A second communication device sends sequence indication information. In a case where there is a sequence corresponding to a first communication device in the sequence indication information, the second communication device sends a first payload. In a case where there is no first data and / or first control information corresponding to the first communication device in the first payload, the second communication device receives a second payload.

30. The method of claim 29, wherein, The method further comprises: In a case where there is no sequence corresponding to the first communication device in the sequence indication information, the second communication device does not send the first payload and does not receive the second payload.

31. The method of claim 29 or 30, wherein, The second communication device sends a first payload, comprising: The second communication device sends the first payload in a first resource.

32. The method of any one of claims 29-31, wherein, The first resource comprises N consecutive orthogonal frequency division multiplexing (OFDM) symbol transmissions, the first OFDM symbol in the first resource transmits the sequence indication information, and the remaining N-1 OFDM symbols in the first resource transmit the first payload, where N is greater than 1.

33. The method of any one of claims 29-32, wherein, The method further comprises: In a case where there is first data and / or first control information corresponding to the first communication device in the first payload, the second communication device does not receive the second payload.

34. The method of any one of claims 29-33, wherein, The first payload is a downlink payload, and the downlink payload is used to receive DCI and / or first downlink data.

35. The method of claim 34, wherein, The first downlink data is low data rate data.

36. The method of claim 34, wherein, The method further comprises: In a case where there is first control information corresponding to the first communication device in the first payload, the second communication device receives or sends second data in a resource specified by the first control information.

37. The method of claim 36, wherein, The first control information is DCI, and the second data comprises second downlink data and / or first uplink data.

38. The method of claim 37, wherein, The second downlink data and / or the first uplink data is high data rate data.

39. The method of any one of claims 29 to 38, wherein, A second resource for sending the second payload is located at a time domain resource position after the sequence indication information and / or the first payload.

40. The method of any one of claims 29 to 39, wherein, The second payload is an uplink payload, and the uplink payload is used for sending second uplink data and / or UCI.

41. The method of claim 40, wherein, The second uplink data is low data rate data.

42. The method of claim 40 or 41, wherein, The uplink payload is sent at a position with a time domain offset after the sequence indication information and / or a downlink payload.

43. The method of claim 42, wherein, A time slot where the uplink payload is located is a Kth time slot after a time slot where the sequence indication information and / or the downlink payload is located.

44. The method of claim 43, wherein, The method further includes: The second communication device sends first configuration information, and the first configuration information includes information of K and information of a symbol number S1 of a first symbol of the uplink payload in a time slot where the uplink payload is located.

45. The method of claim 42, wherein, The first symbol of the uplink payload is an S2th symbol after a symbol where the sequence indication information and / or the downlink payload is located.

46. The method of claim 45, wherein, The method further includes: The second communication device sends second configuration information, and the second configuration information includes information of S2.

47. The method of claim 40 or 41, wherein, Uplink resources available for the second communication device to receive the uplink payload occur periodically in time domain.

48. The method of claim 47, wherein, The second communication device receives the uplink payload on the uplink resources on which the first communication device sends the uplink payload for the first time after the sequence indication information and / or the downlink payload.

49. The method of claim 47 or 48, wherein, A period in which the uplink resources available for the second communication device to receive the uplink payload occur is P time slots.

50. The method of claim 49, wherein, The method further includes: The second communication device sends third configuration information, and the third configuration information includes one or more of information of P, a time slot number of a time slot where the uplink resources of the uplink payload are located within a period, and a symbol number of a first symbol of the uplink payload within the time slot.

51. The method of any one of claims 40 to 50, wherein, The method further includes: The second communication device sends fourth configuration information, and the fourth configuration information includes frequency domain resource information of the uplink payload.

52. The method of claim 51, wherein, The frequency domain resource information includes a resource block number and / or a resource block group number of the uplink resources of the uplink payload.

53. The method of claim 44, 46, 50, 51, or 52, wherein, The configuration information is RRC configuration signaling or system information.

54. The method of claim 44, 46, 50, 51, or 52, wherein, The configuration information includes a time domain length of the uplink payload.

55. The method of claim 44, 46, 50, 51, or 52, wherein, The configuration information includes information of a format of DCI that can be detected in the downlink payload.

56. The method of claim 44, 46, 50, 51, or 52, wherein, The configuration information is common or specific to each bandwidth part BWP or cell.

57. A first communication device, comprising: a transceiver unit, configured to receive sequence indication information; the transceiver unit is further configured to receive a first payload in a case where the first communication device detects a sequence corresponding to the first communication device from the sequence indication information; the transceiver unit is further configured to send a second payload in a case where the first communication device does not detect first data and / or first control information corresponding to the first communication device from the first payload.

58. A second communication device, comprising: a transceiver unit, configured to send sequence indication information; the transceiver unit is further configured to send a first payload in a case where there is a sequence corresponding to the first communication device in the sequence indication information; The transceiver is further configured to receive a second payload in a case that there is no first data and / or first control information corresponding to the first communication device in the first payload.

59. A communication device, comprising: A transceiver, a processor and a memory, the memory being configured to store a computer program, the transceiver being configured to communicate with other devices, the processor being configured to invoke and run the computer program stored in the memory, so as to cause the communication device to perform the method according to any one of claims 1 to 56.

60. A chip comprising: A processor configured to invoke and run a computer program from a memory, so as to cause a device in which the chip is installed to perform the method according to any one of claims 1 to 56. 61.A computer readable storage medium configured to store a computer program, which, when executed by a device, causes the device to perform the method according to any one of claims 1 to 56. 62.A computer program product comprising computer program instructions configured to cause a computer to perform the method according to any one of claims 1 to 56. 63.A computer program configured to cause a computer to perform the method according to any one of claims 1 to 56. 64.A communication system comprising: a first communication device configured to perform the method according to any one of claims 1 to 28; and a second communication device configured to perform the method according to any one of claims 29 to 56.

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