Signal sending and receiving method and related equipment

Abstract

The present invention discloses a signal sending and receiving method and related devices. The signal sending method includes: a first terminal device receives a signal sent by a second terminal device at a first transmission time, and the first terminal device sends a signal at a second transmission time, wherein the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers. Through the above solution, the detection performance or demodulation performance of the signal sent by the base station to the user equipment can be improved while ensuring the perceived rate of the user.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a signal sending and receiving method and related equipment. Background Art

[0002] In wireless communication systems, such as new radio (NR) communication systems, information exchanged between user equipment (UE) and base stations (BS, or g Node B, gNB) is carried through physical channels. The data sent by the UE, that is, uplink data, is usually carried by the physical uplink shared channel (PUSCH); the control information sent by the UE, that is, uplink control information, is usually carried by the physical uplink control channel (PUCCH). In addition, the UE can also send a sounding reference signal (SRS). By receiving the SRS of the UE, the gNB can estimate the channel quality of the UE at different frequencies.

[0003] In wireless communications, for some deep coverage scenarios, such as the edge of a cell or a basement, the path loss of wireless signal propagation is very serious. In existing solutions, in order to enhance the detection performance or demodulation performance of the base station when receiving the signal sent by the UE, a coverage enhancement method is required. Common coverage enhancement methods include UE repeated transmission, base station receiving multiple repeated transmissions of data and combining and demodulating them. Repeated transmission and reception of data is equivalent to occupying more resources to transmit the same amount of data. Therefore, the existing method will lead to a decrease in the user's perceived rate. Summary of the invention

[0004] The embodiments of the present invention provide a signal sending and receiving method and related equipment, which can ensure the detection performance or demodulation performance of the base station for the signal sent by the user equipment while improving the perception rate of the terminal equipment.

[0005] In a first aspect, an embodiment of the present application provides a signal sending method, the method comprising:

[0006] A signal is received at a first transmission time, and a signal received at the first transmission time is sent at a second transmission time, wherein the first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 Is a positive integer.

[0007] In a possible implementation manner, the first terminal device receives a signal sent by the second terminal device at a first transmission time; and the first terminal device sends the signal at a second transmission time.

[0008] The method of the first aspect of the present invention may be executed by the first terminal device, or may be executed by a chip in the first terminal device, such as a baseband processing chip.

[0009] By adopting the above method, the first terminal device receives the signal transmitted by the second terminal at a first time and sends the signal at a second transmission time. Therefore, the same signal as that sent by the second terminal device can be sent by the first terminal device, so that when the network device receives the signal sent by the second terminal device the same number of times as in the existing scheme, it also receives the signal sent by the second terminal device forwarded by the adjacent first terminal device, which equivalently improves the strength of the signal of the second terminal device received by the network device and improves the perception rate of the terminal device.

[0010] Optionally, the N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1};

[0011] The first terminal device is in the N 2 The signal sent by the time unit with index i in the N time unit is consistent with the signal sent by the first terminal device in the N 1 The index in the time unit is (i mod N 1 ) time unit is the same as the signal received.

[0012] By adopting the above method, the first terminal device is 2 The signal sent by the time unit indexed by i in N time units is the same as the signal sent by the time unit indexed by i in N 1 The index in the time unit is (i mod N 1 ) time unit is the same, which can ensure that the signals sent by the first terminal device and the second terminal device at the same time are the same signal, thereby equivalently improving the signal strength of the second terminal device, and then improving the demodulation performance of the network device for the signal.

[0013] Optionally, the method further includes:

[0014] receiving indication information, and if the value of the indication information belongs to a predefined first set, the first terminal device receives a signal at a third transmission time and sends a signal at a fourth transmission time;

[0015] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

[0016] In a possible implementation, if the value of the indication information belongs to a predefined first set, the first terminal device receives a signal at a third transmission time and sends a signal at a fourth transmission time; if the value of the indication information belongs to a predefined second set, the second terminal device sends a signal at the third transmission time and the fourth transmission time. Therefore, the first terminal device and the second terminal device can respectively determine their respective signal transmission methods based on the same indication information, without the need to instruct the first terminal device and the second terminal device through different indication information, thereby saving the indication overhead.

[0017] Optionally, the indication information is included in the downlink control information DCI sent by the network device. With the above method, the signal transmission method of the first terminal device and the second terminal device can be indicated by the same indication information in the DCI, without sending different indication information to each terminal device for indication, which can reduce the indication overhead.

[0018] Optionally, the method further includes:

[0019] In the N 2 In the N time units, the first terminal device 2 The signal sent by the time unit indexed by i in the N time units is consistent with the signal sent by the second terminal device in the N 2 The signal sent in the time unit indexed by i in the time units is the same.

[0020] Using the above method, in N 2 If the signal sent by the first terminal device in a time unit is the same as the signal sent by the second terminal device, it can ensure that the network device receives multiple identical signals at the same time, thereby equivalently improving the strength of the signal sent by the second terminal device received by the network device, thereby improving the demodulation performance of the network device for the signal.

[0021] Optional, N 1An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

[0022] Optionally, the first terminal device determines a first transmission time and a second transmission time, wherein the first transmission time includes N 1 time units, the second transmission time includes N 2 time units, and the first transmission time and the second transmission time do not overlap, N 1 and N 2 is a positive integer; the first terminal device receives a signal in the first transmission time, and sends the signal received in the first transmission time in the second transmission time.

[0023] Optionally, the transmission time composed of the first transmission time and the second transmission time includes N 1 +N 2 time units, the first transmission time includes N 1 The time unit is N 1 +N 2 The first N time units 1 time units, the second transmission time includes N 2 The time unit is N 1 +N 2 The last N time units 2 time unit.

[0024] Optionally, record the first transmission time including N 1 The index of each time unit is {0,1,...N 1 -1}, the second transmission time includes N 2 The index of each time unit is {0,1,…,N 2 -1};

[0025] In the N 2 In the N time units, the signal sent by the terminal device in the time unit with index i is the same as the signal sent by the terminal device in the N time units. 1 The index in the time unit is (i mod N 1 ), where i is an integer, 0≤i≤N 2 -1, mod is the modulo operation.

[0026] In a second aspect, an embodiment of the present application provides a signal receiving method, the method comprising:

[0027] receiving a signal sent by a second terminal device at a first transmission time;

[0028] receiving the signal sent by the first terminal device and the second terminal device at a second transmission time;

[0029] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 Is a positive integer.

[0030] Optionally, the N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1};

[0031] Network equipment in the N 2 The time unit indexed by the first time unit receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N 1 The index in the time unit is (i mod N 1 )’s time unit receives the same signal sent by the first terminal device.

[0032] The method of the second aspect of the present invention may be executed by a network device, or by a chip in the network device, such as a baseband processing chip.

[0033] Optionally, the method further includes:

[0034] Send instruction information;

[0035] If the value of the indication information belongs to a predefined first set, instructing the first terminal device to receive a signal at a third transmission time and to send a signal at a fourth transmission time;

[0036] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

[0037] Optionally, the method further includes:

[0038] Send instruction information;

[0039] If the value of the indication information belongs to the predefined second set, instructing the second terminal device to send a signal at a third transmission time and a fourth transmission time;

[0040] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 Therefore, the network device can indicate the signal transmission methods of the first terminal device and the second terminal device respectively through the same indication information, without indicating the first terminal device and the second terminal device respectively through different indication information, which can save the indication overhead.

[0041] Optionally, the indication information is included in downlink control information DCI.

[0042] Optionally, the method further includes:

[0043] Network equipment in the N 2 The time unit indexed as i in the time units receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N time units. 2 The time unit indexed by i in the time units receives the same signal sent by the second terminal device.

[0044] Optional, N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

[0045] In a third aspect, an embodiment of the present application provides a terminal device, wherein the terminal device is configured to perform the following steps:

[0046] receiving a signal at a first transmission time, and transmitting the signal received at the first transmission time at a second transmission time;

[0047] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 Is a positive integer.

[0048] In a possible implementation, the terminal device includes a receiving unit and a sending unit, wherein:

[0049] The receiving unit is used to receive a signal sent by the second terminal device at the first transmission time;

[0050] The sending unit is used to send the signal at a second transmission time.

[0051] Optionally, the device is also used for:

[0052] receiving indication information, and if a value of the indication information belongs to a predefined first set, receiving a signal at a third transmission time, and sending a signal at a fourth transmission time;

[0053] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

[0054] Optional,

[0055] If the value of the indication information belongs to the predefined second set, the second terminal device sends a signal at the third transmission time and the fourth transmission time. Therefore, the first terminal device and the second terminal device can respectively determine their respective signal transmission methods according to the same indication information, without having to indicate the first terminal device and the second terminal device respectively through different indication information, which can save the indication overhead.

[0056] Optionally, the indication information is included in downlink control information DCI sent by the network device.

[0057] Optionally, the device is also used for:

[0058] In the N 2 In the N time units, 2 The signal sent by the time unit indexed by i in the N time units is consistent with the signal sent by the second terminal device in the N 2 The signal sent in the time unit indexed by i in the time units is the same.

[0059] Optional, N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

[0060] Optionally, the device is used to: determine a first transmission time and a second transmission time, wherein the first transmission time includes N 1 time units, the second transmission time includes N2 time units, and the first transmission time and the second transmission time do not overlap, N 1 and N 2 is a positive integer; the first terminal device receives a signal in the first transmission time, and sends the signal received in the first transmission time in the second transmission time.

[0061] Optionally, the transmission time composed of the first transmission time and the second transmission time includes N 1 +N 2 time units, the first transmission time includes N 1 The time unit is N 1 +N 2 The first N time units 1 time units, the second transmission time includes N 2 The time unit is N 1 +N 2 The last N time units 2 time unit.

[0062] Optionally, record the first transmission time including N 1 The index of each time unit is {0,1,...N 1 -1}, the second transmission time includes N 2 The index of each time unit is {0,1,…,N 2 -1};

[0063] In the N 2 In the N time units, the terminal device is used to send a signal in the time unit with index i and a signal in the N time units. 1 The index in the time unit is (i mod N 1 ), where i is an integer, 0≤i≤N 2 -1, mod is the modulus operation.

[0064] In a fourth aspect, an embodiment of the present application provides a network device, the network device comprising a first receiving unit and a second receiving unit, wherein:

[0065] The first receiving unit is used to receive a signal sent by a second terminal device at a first transmission time;

[0066] The second receiving unit is used to receive the signal sent by the first terminal device and the second terminal device at a second transmission time;

[0067] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2time unit, N 1 and N 2 Is a positive integer.

[0068] Optionally, the N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1};

[0069] In the N 2 The time unit indexed by the first time unit receives the signal sent by the first terminal device and the signal received by the first terminal device in the N 1 The index in the time unit is (i mod N 1 )’s time unit receives the same signal sent by the first terminal device.

[0070] Optionally, the network device is further used for:

[0071] Send instruction information;

[0072] If the value of the indication information belongs to a predefined first set, instructing the first terminal device to receive a signal at a third transmission time and to send a signal at a fourth transmission time;

[0073] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

[0074] Optionally, the network device is further used for:

[0075] Send instruction information;

[0076] If the value of the indication information belongs to a predefined second set, instructing the second terminal device to send a signal at a third transmission time and a fourth transmission time;

[0077] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 Therefore, the network device can indicate the signal transmission methods of the first terminal device and the second terminal device respectively through the same indication information, without indicating the first terminal device and the second terminal device respectively through different indication information, which can save the indication overhead.

[0078] Optionally, the indication information is included in downlink control information DCI.

[0079] Optionally, the network device is further configured to: 2 The time unit indexed as i in the time units receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N time units. 2 The time unit indexed by i in the time units receives the same signal sent by the second terminal device.

[0080] Optional, N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

[0081] In a fifth aspect, an embodiment of the present application provides a communication system, which includes the terminal device described in the third aspect and the network device described in the fourth aspect.

[0082] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes all or part of the methods of the first and second aspects.

[0083] In a seventh aspect, an embodiment of the present application provides a signal sending device in a terminal device, including a processor and a memory, wherein:

[0084] The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0085] In an eighth aspect, an embodiment of the present application provides a signal receiving device in a network device, including a processor and a memory, wherein:

[0086] The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the method in the second aspect or any possible implementation manner of the second aspect.

[0087] In a ninth aspect, an embodiment of the present application provides a chip system, which includes a processor for supporting a terminal device to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0088] In the tenth aspect, an embodiment of the present application provides a chip system, which includes a processor for supporting a network device to implement the method in the second aspect or any possible implementation manner of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0090] Figure 1 A schematic diagram of the structure of a communication system is provided for an embodiment of the present application;

[0091] Figure 2 An interactive schematic diagram of a signal sending and receiving method is provided for an embodiment of the present application;

[0092] Figure 3 An interactive schematic diagram of another signal sending and receiving method is provided for an embodiment of the present application;

[0093] Figure 4 An interactive schematic diagram of another signal sending and receiving method is provided for an embodiment of the present application;

[0094] Figure 5 An interactive schematic diagram of another signal sending and receiving method is provided for an embodiment of the present application;

[0095] Figure 6 An interactive schematic diagram of another signal sending and receiving method is provided for an embodiment of the present application;

[0096] Figure 7 A schematic block diagram of a terminal device is provided for an embodiment of the present application;

[0097] Figure 8 A schematic block diagram of a network device is provided for an embodiment of the present application;

[0098] Fig. 9 The present application embodiment provides a schematic diagram of the structure of a terminal device;

[0099] Fig.10 A schematic diagram of the structure of a network device is provided for an embodiment of the present application;

[0100] Fig.11 A structural schematic diagram of a chip system provided by the present application is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0101] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0102] Below, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0103] 1) Terminal equipment, including equipment that provides voice and / or data connectivity to users, such as a handheld device with wireless connection function, or a processing device connected to a wireless modem. The terminal equipment can communicate with the core network via the radio access network (RAN) and exchange voice and / or data with the RAN. The terminal device may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, vehicle-to-everything (V2X) terminal equipment, machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, Internet of Things (IoT) terminal equipment, subscriber unit (subscriberunit), subscriber station (subscriber station), mobile station (mobile station), remote station (remotestation), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device), etc. For example, it may include a mobile phone (or so-called "cellular" phone), a computer with a mobile terminal device, a portable, pocket-sized, handheld, or computer-built-in mobile device, etc. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA), and other devices. It also includes limited devices, such as devices with low power consumption, or devices with limited storage capacity, or devices with limited computing power, etc. For example, it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning systems (GPS), laser scanners, etc.

[0104] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices or smart wearable devices, etc., which are a general term for the application of wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-size, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0105] The various terminal devices introduced above, if located on a vehicle (eg, placed in or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also called on-board units (OBU).

[0106] 2) Network equipment, for example, including access network (AN) equipment, such as base stations (e.g., access points), which can refer to equipment in the access network that communicates with wireless terminal devices through one or more cells over the air interface, or, for example, an access network device in a V2X technology is a road side unit (RSU). The base station can be used to convert received air frames to and from Internet Protocol (IP) packets, acting as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications and can exchange messages with other entities that support V2X applications. The access network equipment can also coordinate the attribute management of the air interface. For example, the access network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution (LTE) system or an advanced long term evolution (LTE-A), or may also include a next generation node B (next generation node B, gNB) in a fifth generation mobile communication technology (the 5th generation, 5G) NR system, or may also include a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (CloudRAN) system, but the embodiments of the present application are not limited.

[0107] Of course, network equipment can also include core network equipment, but because the technical solution provided in the embodiment of the present application mainly involves access network equipment, in the following text, unless otherwise specified, the "network equipment" described in the following text refers to access network equipment.

[0108] 3) "At least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or plural.

[0109] Furthermore, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects. For example, the first information and the second information are only used to distinguish different information, and do not indicate the difference in content, priority, sending order or importance of the two types of information.

[0110] As described above, some concepts involved in the embodiments of the present application are introduced. The following describes the technical features of the embodiments of the present application.

[0111] In order to solve the problem in the prior art that in some deep coverage scenarios, the path loss of wireless signal propagation is very serious, resulting in the signal sent by the terminal device being very weak when it reaches the network device. The coverage enhancement method in the existing solution may cause the user's perceived rate to decrease. In view of the situation, the present application proposes a method of using at least one adjacent terminal device to forward the signal sent by the terminal device, so that when the network device receives the signal sent by the second terminal device the same number of times as in the existing solution, it also receives the signal sent by the second terminal device forwarded by the adjacent terminal device, which equivalently improves the strength of the signal from the second terminal device received by the network device and improves the perceived rate of the terminal device.

[0112] The embodiments of the present application are described below in conjunction with the accompanying drawings.

[0113] In order to better understand the signal sending and receiving method in the embodiment of the present application, the present application provides a structural diagram of a communication system using the signal sending and receiving method. Figure 1 , Figure 1 A schematic diagram of the structure of a communication system is provided for an embodiment of the present application. Figure 1 As shown, the communication system includes a network device and multiple terminal devices, the network device is, for example, an access network device, such as a base station, or it can also be a device such as an RSU, the terminal device includes at least one first terminal device and at least one second terminal device, the first terminal device can receive / forward signals sent by other terminal devices, wherein the second terminal device sends the same signal at a first transmission time and a second transmission time, the first terminal device receives the signal sent by the second terminal device at the first transmission time, the first terminal device sends the received signal at the second transmission time, and the first terminal device does not change the characteristics of the signal when sending the signal at the second transmission time; the base station receives the signal sent by the second terminal device at the first transmission time and the second transmission time, and receives the signal sent by the first terminal device at the second transmission time, the first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1and N 2 is a positive integer. Therefore, the same signal as that sent by the second terminal device can be sent by the first terminal device, which can improve the performance of the base station in receiving the signal sent by the second terminal device. At the same time, compared with the existing scheme, when the network device receives the signal sent by the second terminal device the same number of times as in the existing scheme, it also receives the signal sent by the second terminal device forwarded by the first terminal device, which equivalently improves the strength of the signal received by the network device from the second terminal device and improves the perception rate of the second terminal device. Among them, the time unit can be a time slot, a frame, a subframe, or a symbol, a symbol group, or other time units, and the present invention does not impose specific restrictions on this. The signal sent by the second terminal device may include one or more of PUSCH, PUCCH, SRS, and a demodulation reference signal (DMRS).

[0114] See also Figure 2 , Figure 2 The present invention provides an interactive schematic diagram of a signal sending and receiving method. Figure 2 As shown, the signal sending and receiving method includes steps S201-S204, which are as follows:

[0115] S201. A second terminal device sends a signal at a first transmission time and a second transmission time.

[0116] The redundancy version number of the signal sent by the second terminal device is RV0, and of course other redundancy version numbers may also be included, such as RV1, RV2, RV3, etc., which are only used as examples and are not specifically limited. S202: The first terminal device receives a signal at a first transmission time.

[0117] The second terminal device sends a signal during the first transmission time, and the first terminal device receives the signal sent by the second terminal device during the first transmission time.

[0118] S203. The first terminal device sends a signal at a second transmission time.

[0119] The signal sent by the first terminal device at the second transmission time is the same as the signal received at the first transmission time. Since the signal sent by the second terminal device at the first transmission time and the second transmission time is the same, the signals sent by the first terminal device and the second terminal device at the second transmission time are the same.

[0120] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1time units, the second transmission time includes N 2 time unit, N 1 Time units in N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1}, the first terminal device is at N 2 The signal sent by the time unit with index i in the time unit is consistent with the signal sent by the first terminal device in N 1 The index in the time unit is (imod N 1 ) time unit, N 1 and N 2 is a positive integer. mod is the remainder operation, i mod N 1 is i divided by N 1 The remainder of .

[0121] Optionally, the network device sends downlink control information (DCI) to the first terminal device and the second terminal device, where the DCI includes indication information, and the indication information is used to instruct the first terminal device to receive a signal at a first transmission time and to send the signal received at the first transmission time at a second transmission time; optionally, the indication information is used to instruct the second terminal device to send a signal at the first transmission time and the second transmission time.

[0122] One possible method is that if the value of the indication information belongs to a predefined first set, the indication information indicates that the first terminal device receives a signal at a first transmission time and sends a signal received at the first transmission time at a second transmission time; if the value of the indication information belongs to a predefined second set, the indication information indicates that the second terminal device sends a signal at the first transmission time and the second transmission time. Optionally, before sending the DCI to the first terminal device and the second terminal device, the network device may further configure an index for each of the multiple terminal devices including the first terminal device and the second terminal device. The index may be any identifier, such as a number, a letter, etc.

[0123] Optionally, a possible method for indicating the indication information in the DCI is that if the index of the terminal device is the same as the value of the indication information, the terminal device is the second terminal device, otherwise it is the first terminal device. Similarly, the method for indicating the indication information in the DCI may also be that if the index of the terminal device is the same as the value of the indication information, the terminal device is the first terminal device, otherwise it is the second terminal device.

[0124] Optionally, taking the case where the index of the terminal device is the same as the value of the indication information, the terminal device is the second terminal device, as an example, a possible indication method of the indication information is: for a collaborative transmission group composed of multiple terminal devices, the indication information can be one of the DCI bit field, the The value of the bit field indicates whether the terminal device in the cooperative transmission group belongs to the second terminal device or the first terminal device. For example, when N=4, the specific field length is bits, a collaborative transmission group consisting of 4 terminal devices, the indexes of the 4 terminal devices in the group are "0", "1", "2", and "3" respectively, and the terminal devices in the collaborative transmission group receive DCI including indication information. For the terminal device with index 0, its corresponding first set is {1,2,3}, and the corresponding second set is {0}; for the terminal device with index 1, its corresponding first set is {0,2,3}, and the corresponding second set is {1}; for the terminal device with index 2, its corresponding first set is {0,1,3}, and the corresponding second set is {2}; for the terminal device with index 3, its corresponding first set is {0,1,2}, and the corresponding second set is {3}. Exemplarily, the four terminal devices in the group receive DCI including indication information. When the value of the indication information in the DCI is 3, the value of the indication information belongs to the second set for the terminal device with index 3. Therefore, the terminal device with index 3 is the second terminal device, and the terminal device sends information at the first transmission time and the second transmission time. Similarly, the terminal devices with indexes other than 3 (that is, 0, 1, 2) are the first terminal devices. These terminal devices receive signals at the first transmission time and send the signals received at the first transmission time at the second transmission time. In the above method, the number of bits occupied by the indication information is small, which is conducive to reducing the bit overhead of the DCI.

[0125] Optionally, another possible method of indicating the indication information is: for a collaborative transmission group consisting of N terminal devices, the indication information can be an N-bit special field in the DCI, the value of each bit in the special field is 0 or 1, the index of each terminal device corresponds one-to-one to an integer value between 0 and N-1, and each index value corresponds one-to-one to a bit; for example, an index value of 0 corresponds to the first bit of the special field, an index value of N-1 corresponds to the Nth bit of the special field, and the first bit to the Nth bit correspond one-to-one to the first position to the Nth position of the special field from left to right (from high to low).

[0126] Among them, for each terminal device in the collaborative transmission group, the preset first set can all be {0} (whose indication bit value is 0), and the preset second set can all be {1} (whose indication bit value is 1). For example, for a collaborative transmission group composed of 4 terminal devices, the length of the indication information is 4 bits, and the indexes of the 4 terminal devices are values ​​in {0, 1, 2, 3} respectively; the 4 terminal devices receive the same DCI including the indication information. If the value of the indication information is '0110', it can be determined that the terminal devices with indexes 0 and 3 are the first terminal devices (the first bit and the fourth bit are 0), and the devices with indexes 1 and 2 are the second terminal devices (the second bit and the third bit are 1). Therefore, the above method can identify multiple first terminal devices and multiple second terminal devices in one identification information, thereby improving the flexibility of the indication.

[0127] Of course, there may be other indication methods for the indication information, and the function of the indication information is: if the value of the indication information belongs to a predefined first set, the second terminal device sends a signal at a first transmission time and a second transmission time; if the value of the indication information belongs to a predefined second set, the first terminal device receives a signal at the first transmission time and sends a signal at the second transmission time. The indication information setting method of the embodiment of the present application is for illustrative purposes only and is not specifically limited.

[0128] In one possible embodiment, the network device sends a specific DCI to the terminal device. If the terminal device receives the specific DCI, it is determined to be the first terminal device, that is, it receives the signal at the first transmission time and sends the signal received at the first transmission time at the second transmission time. One possible method is to scramble the specific DCI using a specific radio network temporary identity (RNTI) and notify the terminal device of the specific RNTI; when the terminal device successfully uses the specific RNTI to descramble the specific DCI, it can be determined that the terminal device is the first terminal device. Therefore, in this example, there is no need to set the indication information in the DCI, that is, there is no need to add a new indication information field in the DCI, so that the terminal device can determine the specific transmission mode, that is, receive the signal at the first transmission time, and send the signal received at the first transmission time at the second transmission time. Therefore, this method can enable the terminal device to determine the specific transmission mode without changing the existing DCI payload, and can reduce the bit overhead in the DCI.

[0129] In a possible embodiment, the network device may also send different DCIs to the terminal device, and the terminal device determines different transmission modes according to the received DCI. Different DCIs may be distinguished by RNTI or other distinction methods, which are not specifically limited in this application.

[0130] Optionally, the first transmission time and the second transmission time may be configured through Radio Resource Control (RRC) signaling, or may be indicated in DCI, or may be indicated through a combination of RRC signaling and DCI. Specifically, for example, it may be: indicating the duration of the first transmission time and the second transmission time, such as the number of time slots, or the ratio of the first transmission time to the total sum of the first transmission time and the second transmission time, or the ratio of the first transmission time to the second transmission time. Of course, it may also be configured or indicated in other ways, which are only used as examples and are not specifically limited to these.

[0131] In a possible embodiment, the DCI may also carry the number of times K that the signal is repeatedly transmitted. After receiving the DCI, when the terminal device determines that it is the second terminal device, at a preset time after receiving the DCI, the signal is repeatedly transmitted K times according to the PUSCH scheduled by the DCI, wherein the number of times K is repeatedly transmitted in the first transmission time may be N. 1 time units, and N in the second transmission time 2 time units, K is N 1 With N 2 The preset time can be determined by a predefined interval time and the end time of the time-frequency resource carrying the DCI.

[0132] Optional, N 1 The integer multiple of the number of cyclic redundancy versions used by the second terminal device to send the signal. This is conducive to the first terminal device receiving all cyclic redundancy version signals sent by the second terminal device in the first transmission time, so when the first terminal device sends the signal received in the first transmission time in the second transmission time, it can send all cyclic redundancy version signals sent by the second terminal device, that is, enhance all cyclic redundancy version signals sent by the second terminal device.

[0133] Optionally, if the first terminal device has a signal power amplification function, the first terminal device can amplify the transmitted signal when sending the signal at the second transmission time, that is, increase the transmission power of the transmitted signal, thereby further enhancing the strength of the signal received by the network device, wherein the transmission power or amplification factor can be pre-configured by the network device.

[0134] S204. The network device receives a signal at a first transmission time and a second transmission time.

[0135] Among them, the signals received by the network device at the first transmission time and the second transmission time are the same signal, that is, the signal sent by the first terminal device and the signal sent by the second terminal device received by the network device at the second transmission time are the same signal, and the signal is the same as the signal received by the terminal device at the first transmission time.

[0136] For the first terminal device, in steps S201 to S203, the first terminal device determines a first transmission time and a second transmission time, wherein the first transmission time includes N 1 time units, the second transmission time includes N 2 time units, and the first transmission time and the second transmission time do not overlap, N 1 and N 2 is a positive integer; the first terminal device receives a signal in the first transmission time, and sends the signal received in the first transmission time in the second transmission time.

[0137] In a possible implementation manner, the transmission time composed of the first transmission time and the second transmission time includes N 1 +N 2 time units, the first transmission time includes N 1 The time unit is N 1 +N 2 The first N time units 1 time units, the second transmission time includes N 2 The time unit is N 1 +N 2 The last N time units 2 time unit.

[0138] In a possible implementation manner, the first transmission time includes N 1 The index of each time unit is {0,1,...N 1 -1}, the second transmission time includes N 2 The index of each time unit is {0,1,…,N 2 -1};

[0139] In the N 2 In the N time units, the signal sent by the terminal device in the time unit with index i is the same as the signal sent by the terminal device in the N time units. 1 The index in the time unit is (i mod N 1 ), where i is an integer, 0≤i≤N 2 -1, mod is the modulo operation.

[0140] Of course, in this embodiment, there may be multiple first terminal devices, and their specific signal processing flow is the same as the signal processing flow of the above-mentioned first terminal device.

[0141] See also Figure 3 , Figure 3 Another interactive schematic diagram of a signal sending and receiving method is provided for the embodiment of the present application. In this example, it is assumed that N 1 is 1, and the signal sent by the terminal device is PUSCH as an example. Figure 3 As shown, the network device sends a DCI to the terminal device in the cooperative transmission group. The DCI indicates the number N of time units in the first transmission time. 1 , and the number of time units N in the second transmission time 2 .

[0142] After receiving the DCI, the terminal device in the cooperative transmission group determines whether it belongs to the first terminal device or the second terminal device; after the terminal device determines that it is the second terminal device, it sends the PUSCH according to the instruction of the DCI, sends a signal with a redundant version number of RV0 once in the first transmission time, and sends N in the second transmission time. 2 The specific method for determining the cooperative transmission group is as mentioned above. Figure 2 The determination method in the embodiment will not be described in detail here.

[0143] After the terminal device determines that it belongs to the first terminal device, it receives a signal with a redundant version number RV0 once in the first transmission time, and sends N signals of RV0 received in the first transmission time in the second transmission time. 2 Second-rate.

[0144] The network device receives a signal with a redundant version number of RV0 sent by the second terminal device once at the first transmission time, and receives a signal with a redundant version number of RV0 sent by the second terminal device N times at the second transmission time. 2 times, and receiving a signal N with a redundant version number RV0 sent by the first terminal device at the second transmission time 2 Second-rate.

[0145] The method for the terminal device to determine whether it belongs to the first terminal device or the second terminal device is as follows: Figure 2 The determination method in the embodiment will not be described in detail here.

[0146] See also Figure 4 , Figure 4 The present application provides another interactive schematic diagram of a signal transmission and reception method, and takes the signal transmitted by the terminal device as PUSCH as an example for explanation. Figure 4As shown, the second terminal device sends signals with redundancy version numbers RV0, RV2, RV3, and RV1 at the first transmission time and the second transmission time, N 1 is 4, that is, 1 times the redundant version number 4; the first terminal device receives the signals of RV0, RV2, RV3, and RV1 at the first transmission time, and sends the signals of RV0, RV2, RV3, and RV1 received at the first transmission time at the second transmission time. The first terminal device receives the signals of RV0, RV2, RV3, and RV1 received at the first transmission time at the second transmission time. 2 The signal sent in the time unit with an index of i in the first transmission time unit is the same as the signal received by the first terminal device in the time unit with an index of (i mod 4) in the four time units in the first transmission time. The specific order of redundant versions can be predefined, or configured through RRC signaling, or DCI notification, or determined by a combination of predefined and DCI notification, or a combination of RRC signaling and DCI notification. Through the method in this embodiment, when the number of redundant versions of the signal sent by the second terminal device is greater than 1, the signal sent by the first terminal device in the second transmission time can still be the same as the signal sent by the second terminal device in each time unit, thereby playing a role in signal enhancement.

[0147] See also Figure 5 , Figure 5 The present application provides another interactive schematic diagram of a signal transmission and reception method, and takes the signal transmitted by the terminal device as PUSCH as an example for explanation. Figure 5 As shown, the second terminal device continuously sends the signal of each RV version 4 times, and the first terminal device receives the signal of the RV version in the first transmission time when each RV version of the signal is first sent, and sends the signal of the RV version received in the first transmission time in the second transmission time. As shown in the figure, the first terminal device receives signals with redundant version numbers RV0, RV1, RV2, and RV3 respectively in the first transmission time, and sends the signals with the above redundant version numbers RV0, RV1, RV2, and RV3 in the second transmission time. Among them, when transmitting the signal of the same RV version, the first transmission time is before the second transmission time, and the signals with the same RV version number in the first transmission time and the second transmission time are the same signal. In addition, when the second terminal device sends signals of different RV versions, it can use frequency hopping to send them.

[0148] See also Figure 6 , Figure 6 The present application provides another interactive schematic diagram of a signal transmission and reception method, and takes the signal transmitted by the terminal device as PUSCH as an example for explanation. Figure 6As shown, when the second terminal device transmits a signal, it can use the method of frequency hopping between time units (such as frequency hopping between time slots) to send the signal. This embodiment takes the method of frequency hopping between time slots as an example to transmit the signal. The second terminal device sends the signal at the third transmission time and the fourth transmission time. The first terminal device receives the signal at the third transmission time and sends the signal at the fourth transmission time. Specifically, as shown in the figure, 4 groups of signals with different RV versions are transmitted on the first frequency, and 4 groups of signals with different RV versions are transmitted on the second frequency. Signals with the same RV version number in different groups are the same signal. Among them, N 1 The time unit is part or all of the third transmission time, N 2 time unit is part or all of the fourth transmission time, that is, it can be understood that the third transmission time may include at least one complete first transmission time, the fourth transmission time may include at least one complete second transmission time, and the signals with the same RV version number in the third transmission time and the fourth transmission time are the same signal.

[0149] Figure 7 A schematic block diagram of a terminal device is provided for an embodiment of the present application. The terminal device 700 is used to perform the following steps:

[0150] receiving a signal at a first transmission time, and transmitting the signal received at the first transmission time at a second transmission time;

[0151] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 Is a positive integer.

[0152] Optionally, as an embodiment, the terminal device includes a receiving unit 710 and a sending unit 720, wherein:

[0153] The receiving unit 710 is configured to receive a signal sent by a second terminal device at a first transmission time;

[0154] The sending unit 720 is configured to send the signal at a second transmission time.

[0155] In an embodiment of the present application, a first terminal device receives a signal transmitted by a second terminal at a first time, and sends the signal at a second transmission time. Therefore, the same signal as that sent by the second terminal device can be sent by the first terminal device, so that when the network device receives the signal sent by the second terminal device the same number of times as in the existing scheme, it also receives the signal sent by the second terminal device forwarded by the adjacent first terminal device, which equivalently improves the strength of the signal from the second terminal device received by the network device and improves the perception rate of the terminal device.

[0156] Optionally, as an embodiment, N 1 Time units in N 2 time units ago, N 1 The index of each time unit is {0,1,...N 1 -1},N 2 The index i of a time unit is {0,1,…,N 2 -1};

[0157] In N 2 The signal sent by the time unit indexed by i in N time units is the same as the signal sent by the time unit indexed by i in N 1 The index in the time unit is (i mod N 1 ) time unit is the same as the signal received.

[0158] Optionally, as an embodiment, the device is further used for:

[0159] receiving indication information, and if the value of the indication information belongs to a predefined first set, receiving a signal at a third transmission time, and sending a signal at a fourth transmission time;

[0160] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is M 2 part or all of a time unit.

[0161] Optionally, as an embodiment, if the value of the indication information belongs to a predefined second set, the second terminal device sends a signal at a third transmission time and a fourth transmission time.

[0162] Optionally, as an embodiment, the indication information is included in downlink control information DCI sent by the network device.

[0163] Optionally, as an embodiment, the device is further used for:

[0164] In N 2 In N time units, 2 The signal sent by the time unit indexed by i in the time units is consistent with the signal sent by the second terminal device at N 2 The signal sent in the time unit indexed by i in the time units is the same.

[0165] Optionally, as an embodiment, N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send signals.

[0166] Optionally, as an embodiment, the device is used to: determine a first transmission time and a second transmission time, wherein the first transmission time includes N 1 time units, the second transmission time includes N 2 time units, and the first transmission time and the second transmission time do not overlap, N 1 and N 2 is a positive integer; the first terminal device receives a signal in the first transmission time, and sends the signal received in the first transmission time in the second transmission time.

[0167] Optionally, as an embodiment, the transmission time composed of the first transmission time and the second transmission time includes N 1 +N 2 time units, the first transmission time includes N 1 The time unit is N 1 +N 2 The first N time units 1 time units, the second transmission time includes N 2 The time unit is N 1 +N 2 The last N time units 2 time unit.

[0168] Optionally, as an embodiment, the first transmission time includes N 1 The index of each time unit is {0,1,...N 1 -1}, the second transmission time includes N 2 The index of each time unit is {0,1,…,N 2 -1};

[0169] In the N 2 In the N time units, the terminal device is used to send a signal in the time unit with index i and a signal in the N time units. 1 The index in the time unit is (i mod N 1 ), where i is an integer, 0≤i≤N 2-1, mod is the modulo operation.

[0170] Figure 8 A schematic block diagram of a network device is provided for an embodiment of the present application. The network device includes a first receiving unit and a second receiving unit, wherein:

[0171] A first receiving unit 810, configured to receive a signal sent by a second terminal device at a first transmission time;

[0172] The second receiving unit 820 is configured to receive signals sent by the first terminal device and the second terminal device at a second transmission time;

[0173] The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 Is a positive integer.

[0174] Optionally, as an embodiment, N 1 Time units in N 2 time units ago, N 1 The index of each time unit is {0,1,...N 1 -1},N 2 The index i of a time unit is {0,1,…,N 2 -1};

[0175] In the N 2 The time unit indexed by the first time unit receives the signal sent by the first terminal device and the signal received by the first terminal device in the N 1 The index in the time unit is (i mod N 1 )’s time unit receives the same signal sent by the first terminal device.

[0176] Optionally, as an embodiment, the network device is further used for:

[0177] Send instruction information;

[0178] If the value of the indication information belongs to the predefined first set, instruct the first terminal device to receive the signal at the third transmission time and send the signal at the fourth transmission time;

[0179] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2The time unit is M 2 part or all of a time unit.

[0180] Optionally, as an embodiment, the network device is further used for:

[0181] Send instruction information;

[0182] If the value of the indication information belongs to the predefined second set, instructing the second terminal device to send a signal at the third transmission time and the fourth transmission time;

[0183] The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is M 2 part or all of a time unit.

[0184] Optionally, as an embodiment, the indication information is included in downlink control information DCI.

[0185] Optionally, as an embodiment, the network device is also used to 2 The time unit indexed by i in the time units receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in N 2 The time unit indexed by i in the time units is the same as the signal received by the second terminal device.

[0186] Optionally, as an embodiment, N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send signals.

[0187] Fig. 9 A simplified schematic diagram of the structure of a terminal device is shown. For ease of understanding and illustration, Fig. 9 In this article, a mobile phone is used as an example of a terminal device. Fig. 9 As shown, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal device, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input-output devices.

[0188] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Fig. 9 Only one memory and processor are shown. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or may be integrated with the processor, and the embodiments of the present application do not limit this.

[0189] In the embodiments of the present application, the antenna and the radio frequency circuit having transceiver functions may be regarded as the transceiver unit of the terminal device, and the processor having the processing function may be regarded as the processing unit of the terminal device. Fig. 9 As shown, the terminal device includes a transceiver unit 910 and a processing unit 920. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 910 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver unit 910 may be regarded as a sending unit, that is, the transceiver unit 910 includes a receiving unit and a sending unit. The transceiver unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0190] It should be understood that the transceiver unit 910 is used to perform sending operations and receiving operations on the terminal device side in the above method embodiment, and the processing unit 920 is used to perform other operations on the terminal device except the sending and receiving operations in the above method embodiment.

[0191] When the communication device is a chip-type device or circuit, the device may include a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit and / or a communication interface; and the processing unit may be an integrated processor or microprocessor or integrated circuit.

[0192] See also Fig.10 , Fig.10 A schematic diagram of the structure of a network device is provided for an embodiment of the present application. The network device is used to perform the steps corresponding to the steps of the corresponding network device in the above-mentioned method embodiments. Fig.10As shown, the network device 1000 may include: one or more processors 1001, a memory 1002, a network interface 1003, a transceiver 1005, and an antenna 1008. These components may be connected via a bus 1004 or other means. Fig.10 Take bus connection as an example.

[0193] The network interface 1003 may be used for the network device 1000 to communicate with other communication devices, such as other network devices. Specifically, the network interface 1003 may be a wired interface.

[0194] The transceiver 1005 may be used to perform transmission processing on the signal output by the processor 1001, such as signal modulation. The transceiver 1005 may also be used to perform reception processing on the mobile communication signal received by the antenna 1008. For example, signal demodulation. In some embodiments of the present application, the transceiver 1005 may be regarded as a wireless modem. In the network device 1000, the number of transceivers 1005 may be one or more. The antenna 1008 may be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.

[0195] The memory 1002 can be coupled to the processor 1001 through the bus 1004 or the input and output ports, and the memory 1002 can also be integrated with the processor 1001. The memory 1002 is used to store various software programs and / or multiple groups of instructions or data. Specifically, the memory 1002 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices or other non-volatile solid-state storage devices. The memory 1002 can store an operating system (hereinafter referred to as system), such as embedded operating systems such as uCOS, VxWorks, RTLinux, etc. The memory 1002 can also store a network communication program, which can be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.

[0196] Processor 1001 may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements a certain function, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like.

[0197] In the embodiment of the present application, the processor 1001 can be used to read and execute computer-readable instructions. Specifically, the processor 1001 can be used to call a program stored in the memory 1002, such as an implementation program of the signal sending and receiving method provided in one or more embodiments of the present application on the network device 1000 side, and execute the instructions contained in the program.

[0198] It is understandable that the network device 1000 may be Figure 1 The network equipment shown may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), an extended service set (ESS), NodeB, eNodeB, gNB, etc.

[0199] It should be noted that Fig.10 The network device 1000 shown is only one implementation of the embodiment of the present application. In practical applications, the network device 1000 may also include more or fewer components, which is not limited here. The specific implementation of the network device 1000 can refer to the relevant description in the aforementioned method embodiment, which will not be repeated here.

[0200] See also Fig.11 , Fig.11 The present invention provides a schematic diagram of the structure of a chip system provided by the present invention. Fig.11 As shown, the chip system 1100 may include: a processor 1101, and one or more interfaces 1102 coupled to the processor 1101. Exemplary:

[0201] The processor 1101 can be used to read and execute computer-readable instructions. In a specific implementation, the processor 1101 may mainly include a controller, an arithmetic unit and a register. Exemplarily, the controller is mainly responsible for decoding instructions and issuing control signals for operations corresponding to the instructions. The arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, etc., and may also perform address operations and conversions. The register is mainly responsible for storing register operands and intermediate operation results temporarily stored during the execution of instructions. In a specific implementation, the hardware architecture of the processor 1101 may be an application specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced RISC machines (ARM) architecture or an NP architecture, etc. The processor 1101 may be single-core or multi-core.

[0202] Exemplarily, the interface 1102 can be used to input data to be processed to the processor 1101, and can output the processing results of the processor 1101. In a specific implementation, the interface 1102 can be a general purpose input output (GPIO) interface, which can be connected to multiple peripheral devices (such as a display (LCD), a camera (camara), a radio frequency (RF) module, etc.). The interface 1102 is connected to the processor 1101 through a bus 1103.

[0203] In a possible implementation, the processor 1101 may be used to call from the memory an implementation program or data of the signal sending and receiving method provided in one or more embodiments of the present application on the network device or terminal device side, so that the chip can implement the aforementioned Figures 2 to 6 The signal sending and receiving method shown. The memory can be integrated with the processor 1101, or it can be coupled to the chip system 1100 through the interface 1102, that is, the memory can be a part of the chip system 1100, or it can be independent of the chip system 1100. The interface 1102 can be used to output the execution result of the processor 1101. In the present application, the interface 1102 can be specifically used to output the decoding result of the processor 1101. Regarding the signal sending and receiving method provided in one or more embodiments of the present application, reference can be made to the aforementioned embodiments, which will not be repeated here.

[0204] It should be noted that the functions corresponding to the processor 1101 and the interface 1102 can be implemented through hardware design, software design, or a combination of hardware and software, and there is no limitation here.

[0205] A communication system includes a plurality of devices, wherein the plurality of devices include a network device and a terminal device. Exemplarily, the network device may be the network device in the aforementioned embodiment, and the terminal device may be the first terminal device and the second terminal device in the aforementioned embodiment, and is used to perform Figures 2 to 6 The signal sending and receiving method provided.

[0206] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium may store a program, and when the program is executed, the program includes part or all of the steps of any one of the signal sending and receiving methods recorded in the above method embodiments.

[0207] The present application also provides a signal sending device, including a processor and a memory, wherein the memory is used to store computer program instructions, and the processor is used to execute the computer program instructions to implement the above embodiment. Figures 2 to 6The method corresponding to the terminal device in the embodiment above, or the method for implementing Figures 2 to 6 The method corresponding to the network device.

[0208] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0209] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0210] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be electrical or other forms.

[0211] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0212] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0213] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0214] A person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash drive, a read-only memory (English: Read-Only Memory, abbreviated as: ROM), a random access memory (English: Random Access Memory, abbreviated as: RAM), a magnetic disk or an optical disk, etc.

[0215] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A signal sending method, It is characterized in that Applied to a first terminal device; the method comprises: receiving a signal sent by a second terminal device at a first transmission time; sending the signal at a second transmission time; The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 is a positive integer, the first terminal device is in the N 2 The signal sent in each time unit of the N time units is consistent with the second terminal device in the N 2 The signal sent in each time unit of the time units is the same.

2. The method according to claim 1, It is characterized in that The N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1}; The first terminal device is in the N 2 The signal sent by the time unit with index i in the N time unit is consistent with the signal sent by the first terminal device in the N 1 The index in the time unit is (imod N 1 ) time unit is the same as the signal received.

3. The method according to claim 2, It is characterized in that The method further comprises: receiving indication information, and if the value of the indication information belongs to a predefined first set, the first terminal device receives a signal at a third transmission time and sends a signal at a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

4. The method according to claim 3, It is characterized in that If the value of the indication information belongs to a predefined second set, the second terminal device sends a signal at the third transmission time and the fourth transmission time.

5. The method according to claim 3 or 4, It is characterized in that The indication information is included in downlink control information DCI sent by the network device.

6. The method according to any one of claims 2 to 4, It is characterized in that The method further comprises: In the N 2 In the N time units, the first terminal device 2 The signal sent by the time unit indexed by i in the N time units is consistent with the signal sent by the second terminal device in the N 2 The signal sent in the time unit indexed by i in the time units is the same.

7. The method according to any one of claims 1 to 4, It is characterized in that N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

8. A signal receiving method, It is characterized in that The method comprises: receiving a signal sent by a second terminal device at a first transmission time; receiving the signal sent by the first terminal device and the second terminal device at a second transmission time; The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 is a positive integer, the first terminal device is in the N 2 The signal sent in each time unit of the N time units is consistent with the second terminal device in the N 2 The signal sent in each time unit of the time units is the same.

9. The method according to claim 8, It is characterized in that The N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1}; Network equipment in the N 2 The time unit indexed by the first time unit receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N 1 The index in the time unit is (i mod N 1 )’s time unit receives the same signal sent by the first terminal device.

10. The method according to claim 9, It is characterized in that The method further comprises: Send instruction information; If the value of the indication information belongs to a predefined first set, instructing the first terminal device to receive a signal at a third transmission time and to send a signal at a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

11. The method according to claim 9, It is characterized in that The method further comprises: Send instruction information; If the value of the indication information belongs to a predefined second set, instructing the second terminal device to send a signal at a third transmission time and a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

12. The method according to claim 10 or 11, It is characterized in that The indication information is included in downlink control information DCI.

13. The method according to any one of claims 9 to 11, It is characterized in that The method further comprises: Network equipment in the N 2 The time unit indexed as i in the time units receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N time units. 2 The time unit indexed by i in the time units receives the same signal sent by the second terminal device.

14. The method according to any one of claims 8 to 11, It is characterized in that N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

15. A terminal device, It is characterized in that The terminal device includes a receiving unit and a sending unit, wherein: The receiving unit is used to receive a signal sent by the second terminal device at the first transmission time; The sending unit is used to send the signal at a second transmission time; The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 is a positive integer, and the terminal device is in the N 2 The signal sent in each time unit of the N time units is consistent with the second terminal device in the N 2 The signal sent in each time unit of the time units is the same.

16. The terminal device according to claim 15, It is characterized in that The N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1}; In the N 2 The signal sent by the time unit indexed by i in the N time units is 1 The index in the time unit is (i mod N 1 ) time unit is the same as the signal received.

17. The terminal device according to claim 16, It is characterized in that The device is also used to: receiving indication information, and if a value of the indication information belongs to a predefined first set, receiving a signal at a third transmission time, and sending a signal at a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

18. The terminal device according to claim 17, It is characterized in that If the value of the indication information belongs to a predefined second set, the second terminal device sends a signal at the third transmission time and the fourth transmission time.

19. The terminal device according to claim 17 or 18, It is characterized in that The indication information is included in downlink control information DCI sent by the network device.

20. The terminal device according to any one of claims 16 to 18, It is characterized in that The device is also used to: In the N 2 In the N time units, 2 The signal sent by the time unit indexed by i in the N time units is consistent with the signal sent by the second terminal device in the N 2 The signal sent in the time unit indexed by i in the time units is the same.

21. The terminal device according to any one of claims 15 to 18, It is characterized in that N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

22. A network device, It is characterized in that The network device comprises a first receiving unit and a second receiving unit, wherein: The first receiving unit is used to receive a signal sent by a second terminal device at a first transmission time; The second receiving unit is used to receive the signal sent by the first terminal device and the second terminal device at a second transmission time; The first transmission time and the second transmission time do not overlap, and the first transmission time includes N 1 time units, the second transmission time includes N 2 time unit, N 1 and N 2 is a positive integer, the first terminal device is in the N 2 The signal sent in each time unit of the N time units is consistent with the second terminal device in the N 2 The signal sent in each time unit of the time units is the same.

23. The network device according to claim 22, It is characterized in that The N 1 The time unit is in the N 2 time units ago, the N 1 The index of each time unit is {0,1,...N 1 -1}, the N 2 The index i of a time unit is {0,1,…,N 2 -1}; In the N 2 The time unit indexed by the first time unit receives the signal sent by the first terminal device and the signal received by the first terminal device in the N 1 The index in the time unit is (i mod N 1 )’s time unit receives the same signal sent by the first terminal device.

24. The network device according to claim 23, It is characterized in that The network device is also used for: Send instruction information; If the value of the indication information belongs to a predefined first set, instructing the first terminal device to receive a signal at a third transmission time and to send a signal at a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

25. The network device according to claim 23, It is characterized in that The network device is also used for: Send instruction information; If the value of the indication information belongs to a predefined second set, instructing the second terminal device to send a signal at a third transmission time and a fourth transmission time; The third transmission time and the fourth transmission time do not overlap, and the third transmission time includes M 1 time units, the fourth transmission time includes M 2 time unit, N 1 The time unit is M 1 part or all of a time unit, N 2 The time unit is the M 2 part or all of a time unit.

26. The network device according to claim 24 or 25, It is characterized in that The indication information is included in downlink control information DCI.

27. The network device according to any one of claims 23 to 25, It is characterized in that The network device is also used to 2 The time unit indexed as i in the time units receives the signal sent by the first terminal device and the network device receives the signal sent by the first terminal device in the N time units. 2 The time unit indexed by i in the time units receives the same signal sent by the second terminal device.

28. The network device according to any one of claims 22 to 25, It is characterized in that N 1 An integer multiple of the cyclic redundancy version RV number used by the second terminal device to send the signal.

29. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 14.

30. A signal sending device in a terminal device, It is characterized in that comprising a processor and a memory, wherein: The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the method according to any one of claims 1 to 7.

31. A signal receiving device in a network device, It is characterized in that comprising a processor and a memory, wherein: The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, thereby implementing the method according to any one of claims 8 to 14.

32. A chip system, It is characterized in that The chip system includes a processor for supporting a terminal device to implement the method described in any one of claims 1 to 7.

33. A chip system, It is characterized in that The chip system includes a processor for supporting a network device to implement the method described in any one of claims 8 to 14.

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