A method and device for indicating time domain resource information

Abstract

The present invention provides a method and device for indicating time domain resource information, wherein the method comprises: in a mobile communication system using multiple subcarrier spacings, transmitting time domain resource indication information of a data channel based on preset subcarrier spacing information. The preset subcarrier spacing information may include one of the multiple subcarrier spacings, or a rule based on the multiple subcarrier spacings. The present invention provides a mechanism for indicating time domain resource information of a data channel based on preset subcarrier spacing information for systems using multiple subcarrier spacings such as 5G NR.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a method and device for indicating time domain resource information. Background Art

[0002] In the LTE (Long Term Evolution) system, only one subcarrier spacing, namely 15kHz, is used, and both the control channel and the data channel use a parameter set based on this subcarrier spacing. However, with the continuous development of communication technology, in order to achieve larger bandwidth, shorter latency and a wider range of business needs in the 5G NR (New Radio) system, multiple subcarrier spacings, such as 3.75kHz, 30kHz, 60kHz and 120kHz, will be introduced. Since the control channel and the data channel have different characteristics, in order to maintain the flexibility of resource allocation, the control channel and the data channel are allowed to use different subcarrier spacings.

[0003] In the existing LTE system, the time domain resource information occupied by the data channel is indicated by default based on a single subcarrier spacing, and the starting point and transmission length of the data channel contained in the indication information only need to include the number of time units such as symbols / time slots. If this indication method is used in the 5G NR system, since the terminal device does not know which subcarrier spacing the indication information is based on, it needs to try to decode based on multiple subcarrier spacings respectively, which greatly increases the terminal complexity and resource consumption (such as power consumption). Summary of the invention

[0004] In view of this, the present invention provides a method and device for indicating time domain resource information, so as to be applicable to systems such as 5G NR that use multiple subcarrier spacings.

[0005] The present invention provides a method for indicating time domain resource information, the method comprising:

[0006] In a mobile communication system using multiple subcarrier spacings, time domain resource indication information of a data channel is transmitted based on preset subcarrier spacing information.

[0007] According to a specific implementation of the present invention, the preset subcarrier spacing information includes one of the multiple subcarrier spacings, or is based on a rule of the multiple subcarrier spacings.

[0008] According to a specific embodiment of the present invention, the time domain resource indication information of the data channel transmitted based on the preset subcarrier spacing information includes:

[0009] The first device sends time domain resource indication information of the data channel to the second device based on preset subcarrier spacing information; or,

[0010] The second device receives the time domain resource indication information of the data channel sent by the first device based on the preset subcarrier spacing information.

[0011] According to a specific embodiment of the present invention, the time domain resource indication information of the data channel includes:

[0012] One or any combination of the time domain start point, time domain end point and time domain length of the data channel; or,

[0013] The symbols or time slots occupied by the data channel.

[0014] According to a specific embodiment of the present invention, the time domain resource indication information of the data channel further includes at least one of the following:

[0015] subcarrier spacing indication information on which the time domain resource indication information is based;

[0016] The subcarrier spacing value on which the time domain resource indication information is based;

[0017] The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

[0018] According to a specific embodiment of the present invention, the time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel.

[0019] According to a specific embodiment of the present invention, the time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including:

[0020] The time domain length of the data channel is indicated in units of a first symbol length or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

[0021] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel is indicated based on the subcarrier spacing used by the data channel; or,

[0022] The time domain start point and / or the time domain end point of the data channel are indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

[0023] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel are indicated based on the subcarrier spacing used by the data channel, specifically including:

[0024] The time domain start point and / or time domain end point of the data channel is indicated in units of a first symbol length and / or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

[0025] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel are indicated in units of a first symbol length and / or a first time slot length, specifically including:

[0026] The time domain start point and / or the time domain end point of the data channel are indicated by the number of first symbol lengths and / or first time slot lengths contained in the offset of the time domain position of the data channel relative to the control channel; or,

[0027] The time domain start point and / or time domain end point of the data channel is indicated by the number of first symbol lengths and / or first time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region containing the control channel.

[0028] According to a specific embodiment of the present invention, the time domain position of the control channel includes:

[0029] The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the subcarrier spacing of the data channel.

[0030] According to a specific implementation of the present invention, the rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

[0031] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel are indicated based on a rule, specifically including:

[0032] The time domain start point and / or time domain end point of the data channel is indicated in units of a second symbol length and / or a second time slot length, wherein the second symbol length is a symbol length based on the maximum subcarrier spacing, and the second time slot length is a time slot length based on the maximum subcarrier spacing.

[0033] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel are indicated in units of a second symbol length and / or a second time slot length, specifically including:

[0034] The time domain start point and / or the time domain end point of the data channel are indicated by the number of second symbol lengths and / or second time slot lengths contained in the offset of the time domain position of the data channel relative to the control channel; or,

[0035] The time domain start point and / or time domain end point of the data channel is indicated by the number of second symbol lengths and / or second time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region including the control channel.

[0036] According to a specific embodiment of the present invention, the time domain position of the control channel includes:

[0037] The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the maximum subcarrier spacing.

[0038] According to a specific embodiment of the present invention, the time domain region containing the control channel includes:

[0039] A control resource set or a search space comprising the control channel.

[0040] According to a specific embodiment of the present invention, the symbols occupied by the data channel are indicated by a bitmap based on the first symbol length;

[0041] The time slot occupied by the data channel is indicated by a bitmap based on the length of the first time slot;

[0042] The first symbol length is a symbol length based on the subcarrier spacing used by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing used by the data channel.

[0043] According to a specific embodiment of the present invention, in the mobile communication system, the control channel and the data channel use different bandwidth segments.

[0044] According to a specific embodiment of the present invention, the first device is a network side device, and the second device is a terminal device; or,

[0045] The first device is a first terminal device, and the second device is a second terminal device.

[0046] According to a specific embodiment of the present invention, the mobile communication system using multiple subcarrier spacings includes: a 5GNR system.

[0047] The present invention also provides a device for indicating time domain resource information, the device comprising:

[0048] The indication transmission unit is used to transmit time domain resource indication information of a data channel based on preset subcarrier spacing information in a mobile communication system using multiple subcarrier spacings.

[0049] According to a specific embodiment of the present invention, the device is provided in the first device, and the device further comprises:

[0050] an indication determining unit, configured to determine time domain resource indication information for sending a data channel based on preset subcarrier spacing information, and provide the time domain resource indication information to the indication transmitting unit;

[0051] The indication transmission unit is used to send the time domain resource indication information of the data channel to the second device.

[0052] According to a specific embodiment of the present invention, the apparatus is provided in the second device, and the apparatus further comprises: an indication parsing unit;

[0053] The indication transmission unit is used to receive time domain resource indication information of the data channel sent by the first device;

[0054] The indication parsing unit is used to parse the time domain resource indication information of the data channel received by the indication determining unit based on the preset subcarrier spacing information to determine the time domain resources occupied by the data channel.

[0055] According to a specific implementation of the present invention, the preset subcarrier spacing information includes one of the multiple subcarrier spacings, or is based on a rule of the multiple subcarrier spacings.

[0056] According to a specific embodiment of the present invention, the time domain resource indication information of the data channel includes:

[0057] One or any combination of the time domain start point, time domain end point and time domain length of the data channel; or,

[0058] The symbols or time slots occupied by the data channel.

[0059] According to a specific embodiment of the present invention, the time domain resource indication information of the data channel further includes at least one of the following:

[0060] subcarrier spacing indication information on which the time domain resource indication information is based;

[0061] The subcarrier spacing value on which the time domain resource indication information is based;

[0062] The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

[0063] According to a specific embodiment of the present invention, the time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel.

[0064] According to a specific embodiment of the present invention, the time domain start point and / or the time domain end point of the data channel is indicated based on the subcarrier spacing used by the data channel; or,

[0065] The time domain start point and / or the time domain end point of the data channel are indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

[0066] According to a specific implementation of the present invention, the rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

[0067] According to a specific embodiment of the present invention, the symbols occupied by the data channel are indicated by a bitmap based on the first symbol length;

[0068] The time slot occupied by the data channel is indicated by a bitmap based on the length of the first time slot;

[0069] The first symbol length is a symbol length based on the subcarrier spacing used by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing used by the data channel.

[0070] According to a specific embodiment of the present invention, in the mobile communication system, the control channel and the data channel use different bandwidth segments.

[0071] The present invention also provides a device, comprising

[0072] One or more processors;

[0073] Memory;

[0074] One or more programs, wherein the one or more programs are stored in the memory and the one or more processors execute the operations in the above method.

[0075] The present invention also provides a storage medium containing computer executable instructions, which are used to perform the operations in the above method when executed by a computer processor.

[0076] It can be seen from the above technical solutions that the present invention provides a mechanism for indicating the time domain resource information of the data channel based on the preset subcarrier spacing information for systems such as 5G NR that use multiple subcarrier spacings. On the one hand, it can be applied to the situation where the control channel and the data channel use multiple subcarrier spacings, which improves the flexibility of resource allocation. On the other hand, the terminal device only needs to decode the time domain resource indication information of the data channel based on the preset subcarrier spacing information, which reduces the terminal complexity and resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 A schematic diagram of indicating the time domain length of a data channel provided in the first embodiment of the present invention;

[0078] Figure 2A schematic diagram of indicating another time domain length of a data channel provided in the first embodiment of the present invention;

[0079] Figure 3 A schematic diagram of indicating the time domain starting point of a data channel provided in the second embodiment of the present invention;

[0080] Figure 4 A schematic diagram of indicating a time domain starting point of another data channel provided in the second embodiment of the present invention;

[0081] Figure 5 A schematic diagram of indicating another time domain starting point of a data channel provided in Embodiment 2 of the present invention;

[0082] Figure 6 A schematic diagram of indicating the time domain starting point of a data channel provided in Embodiment 3 of the present invention;

[0083] Figure 7 A schematic diagram of indicating symbols occupied by a data channel provided in a fourth embodiment of the present invention;

[0084] Figure 8 A structural diagram of a device provided in a first device according to an embodiment of the present invention;

[0085] Fig. 9 A structural diagram of a device provided in a second device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0086] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0087] The core idea of ​​the present invention is that in a 5G NR system, since multiple subcarrier spacings are used, the first device can send time domain resource indication information of a data channel to the second device based on preset subcarrier spacing information. The preset subcarrier spacing information may include but is not limited to: one of the multiple subcarrier spacings used by the system, rules based on multiple subcarrier spacings, and the like.

[0088] In addition, the first device may be a network side device, and the second device may be a terminal device, that is, the network side device indicates the time domain resource information of the data channel to the terminal device based on the preset subcarrier spacing information. However, the present invention is also applicable to communication between terminal devices, that is, the first terminal device indicates the time domain resource information of the data channel to the second terminal device, so that the first terminal device and the second terminal device send and receive the data channel according to the indication. In the subsequent embodiments, the network side device indicates to the terminal device as an example for description.

[0089] The terminal devices involved in the embodiments of the present invention may include but are not limited to mobile phones, tablet computers, laptop computers, PDAs, multimedia devices, and even Internet cars, smart wearable devices, etc. with wireless communication functions. The network side devices involved in the embodiments of the present invention may include but are not limited to base station devices such as BST, NodeB, and eNodeB. The method provided by the present invention is described in detail below in conjunction with the embodiments.

[0090] The time domain resource indication information of the data channel may include: one or any combination of the time domain starting point, time domain end point and time domain length of the data channel; or the symbol or time slot occupied by the data channel. For example, the method of indicating the "starting point + time domain length" of the data channel may be adopted, and for another example, the method of indicating the "starting point + end point" of the data channel may be adopted, and for another example, the method of indicating which symbols or time slots are occupied by the data channel may be adopted, and so on.

[0091] As an implementation method, the indication information sent by the network side device to the terminal device only includes one or any combination of the time domain start point, time domain end point and time domain length of the data channel; or the symbol or time slot occupied by the data channel. The preset subcarrier information based on the indication information can be pre-agreed by the network side device and the terminal device.

[0092] As another implementation method, the indication information sent by the network side device to the terminal device may include, in addition to one or any combination of the time domain start point, time domain end point and time domain length of the data channel mentioned above; or, in addition to the symbols or time slots occupied by the data channel, the preset subcarrier information on which it is based. For example, 3 bits may be used to indicate the preset subcarrier information on which it is based.

[0093] Here are some examples:

[0094] Example 1: The indication information includes the subcarrier spacing indication information on which the time domain resource information is based. Since a variety of subcarrier spacings may be used in the 5G NR system, for example, the control channel uses subcarrier spacing f1 and the data channel uses subcarrier spacing f2, if the time domain resource of the data channel is indicated based on f2, the indication information using f2 may be further indicated in the above indication information.

[0095] Example 2: The indication information includes the subcarrier spacing value based on which the time domain resource information is based. Different from Example 1, the indication information in Example 1 includes the subcarrier spacing indication information, while Example 2 directly provides the specific subcarrier spacing value.

[0096] Example 3: The indication information includes the rule indication information on which the time domain resource indication information is based, and the rule is based on multiple subcarrier spacings. For example, in the 5G NR system, the control channel uses subcarrier spacing f1 and the data channel uses subcarrier spacing f2, then the time domain resources of the data channel can be indicated based on a certain rule f(f1,f2). For example, f(f1,f2) can be max(f1,f2), that is, the maximum subcarrier spacing among multiple subcarrier spacings is taken. Of course, other rules can also be used, which are not listed here.

[0097] Embodiment 1

[0098] The time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel. That is, the network side device indicates the time domain length of the data channel based on the subcarrier spacing used by the data channel. For example, assuming that the subcarrier spacing of the control channel is f1, the subcarrier spacing of the data channel is f2, the symbol length based on f2 is S2, and the time slot length based on f2 is D2, then the time domain length of the data channel is indicated in units of S2 or D2, which can be specifically reflected as the number of S2 or D2.

[0099] like Figure 1 As shown in , assuming f1 is 15kHz and f2 is 60kHz, the symbol length S1 of the control channel is 4 times the symbol length S2 of the data channel. When indicating the time domain length of the data channel, S2 is used as the unit for indication, for example, 10 symbols with a length of S2.

[0100] like Figure 2 As shown in , assuming f1 is 60kHz and f2 is 15kHz, the symbol length S2 of the data channel is 4 times the symbol length S1 of the control channel. When indicating the time domain length of the data channel, S2 is used as the unit for indication, for example, 3 symbols with a length of S2.

[0101] This method does not need to directly indicate the subcarrier spacing that measures the length of the data channel. Both ends directly use the parameter set based on the subcarrier spacing used by the data channel, saving the overhead of control signaling.

[0102] Embodiment 2

[0103] The time domain start point and / or time domain end point of the data channel are indicated based on the subcarrier spacing used by the data channel. That is, the network side device indicates the time domain start point and / or time domain end point of the data channel based on the subcarrier spacing used by the data channel. For example, assuming that the subcarrier spacing of the control channel is f1, the subcarrier spacing of the data channel is f2, the symbol length based on f2 is S2, and the time slot length based on f2 is D2, then the time domain start point or time domain end point of the data channel is indicated in units of S2 and / or D2.

[0104] Specifically, the time domain start point or the time domain end point of the data channel can be reflected as the number of S2 and / or D2 included in the offset of the data channel relative to the time domain position of the control channel. Among them, the time domain position of the control channel may include the symbol or time slot based on f2 where the time domain start point or the time domain end point of the control channel is located. In addition, it should be noted that in addition to reflecting the time domain start point or the time domain end point relative to the time domain position of the control channel, other methods such as the time domain position relative to the synchronization channel can also be used.

[0105] like Figure 3 As shown, assuming that f1 is 15kHz and f2 is 60kHz, the symbol length S1 of the control channel is 4 times the symbol length S2 of the data channel. When indicating the time domain starting point of the data channel, S2 is used as the unit for indication. For example, the offset from the f2-based symbol where the control channel end point is located to the time domain starting point of the data channel is 7 symbols of length S2.

[0106] like Figure 4 As shown in the figure, assuming f1 is 60kHz and f2 is 15kHz, the symbol length S2 of the data channel is 4 times the symbol length S1 of the control channel. When indicating the time domain starting point of the data channel, S2 is used as the unit for indication. First, the symbol with a length of S2 where the time domain end point of the control channel is located is determined, and then the offset of the time domain starting point of the data channel from the symbol is indicated, for example, 3 symbols with a length of S2.

[0107] Alternatively, the time domain start point or time domain end point of the data channel may also be reflected as the number of S2 and / or D2 included in the offset of the time domain position of the data channel relative to the time domain region containing the control channel. The time domain region containing the control channel may be a control resource set (ControlResource Set) or a search space (SearchSpace) containing the control channel.

[0108] The control resource set is a range of time-frequency resources that may be occupied by a control channel. The transmitter sends the control channel on a certain time-frequency resource in the control resource set, and the receiver receives the control channel on a certain time-frequency resource in the control resource set.

[0109] The search space is the time domain range in which the receiver searches for control channels. At a certain moment, the receiver does not need to search for control channels in the entire control resource set, but can search only in a smaller range based on some limiting conditions. This is the search space. The time-frequency resources occupied by the search space are part of the control resource set.

[0110] like Figure 5As shown, assuming that f1 is 15kHz and f2 is 60kHz, the symbol length S1 of the control channel is 4 times the symbol length S2 of the data channel. When indicating the time domain starting point of the data channel, S2 is used as the unit for indication. For example, the offset from the control resource set including the control channel to the time domain starting point of the data channel is 10 symbols of length S2.

[0111] This method does not need to directly indicate the subcarrier spacing for measuring the start or end point of the data channel in the time domain. Both ends directly use the parameter set based on the subcarrier spacing used by the data channel, saving the control signaling overhead.

[0112] Embodiment 3

[0113] The time domain starting point and / or time domain end point of the data channel are indicated based on a rule, and the rule is based on multiple subcarrier spacings. For example, the rule may be to take the maximum subcarrier spacing among the subcarrier spacings in the 5G NR system. In other words, the network side device indicates the time domain starting point and / or time domain end point of the data channel based on the maximum subcarrier spacing. For example, assuming that the subcarrier spacing of the control channel is f1, the subcarrier spacing of the data channel is f2, the symbol length based on max(f1,f2) is S, and the time slot length based on max(f1,f2) is D, then the time domain starting point or time domain end point of the data channel is indicated in units of S and / or D.

[0114] Similar to the second embodiment, the time domain start point or the time domain end point of the data channel can be reflected as the number of S and / or D included in the offset of the data channel relative to the time domain position of the control channel. Among them, the time domain position of the control channel can include the symbol or time slot based on max(f1, f2) where the time domain start point or the time domain end point of the control channel is located.

[0115] Alternatively, the time domain start point or the time domain end point of the data channel may also be reflected as the number of S and / or D included in the offset of the time domain position of the data channel relative to the time domain region containing the control channel. The time domain region containing the control channel may be a control resource set (ControlResource Set) or a search space (Search Space) containing the control channel.

[0116] For example, Figure 6As shown, assuming that f1 is 60kHz and f2 is 15kHz, the symbol length S2 of the data channel is 4 times the symbol length S1 of the control channel. When indicating the time domain starting point of the data channel, the indication is based on max(f1, f2), that is, the symbol length S1 of f1. First, determine the symbol of length S1 where the time domain end point of the control channel is located, and then indicate the offset of the time domain starting point of the data channel from the symbol, for example, 17 symbols of length S1. In this way, compared with the method based on f2 in Example 1 and Example 2, the terminal does not need to know which S2 symbol the time domain end point of the control channel is located, which further simplifies the operational complexity of the terminal and helps to achieve more flexible control channel resource allocation.

[0117] Embodiment 4:

[0118] The symbols / time slots occupied by the data channel are indicated by a bitmap of the symbol / time slot length based on the subcarrier spacing adopted by the data channel. That is to say, the network-side device indicates the symbols / time slots occupied by the data channel based on the bitmap of the symbol / time slot length based on the subcarrier spacing adopted by the data channel. For example, assuming that the subcarrier spacing of the control channel is f1, the subcarrier spacing of the data channel is f2, the symbol length based on f2 is S2, and the time slot length based on f2 is D2, then the symbols occupied by the data channel are indicated by a bitmap based on S2, and the time slots occupied by the data channel are indicated by a bitmap based on D2.

[0119] This method is very suitable for situations where data channels occupy discontinuous time domain resources. Figure 7 As shown, a bitmap can be used to indicate the time domain resources occupied by the data channel, and each bit indicates a symbol of length S2. Assuming that the data channel occupies the 1st, 2nd, 5th, 6th, 7th, 8th, and 10th symbols of length S2, a bitmap of 1100111101 can be used for indication. It can be seen that this method can achieve more flexible time domain resource scheduling.

[0120] It should be noted that the methods in the above embodiments can be used one by one or in combination. For example, the time domain length of the data channel in embodiment 1 can be indicated based on the subcarrier spacing used by the data channel, and the time domain starting point of the data channel can be indicated based on the maximum subcarrier spacing in the system.

[0121] The network side device determines and sends the time domain resource indication information of the data channel to the terminal device in accordance with the method in the above embodiment. Accordingly, after receiving the above time domain resource indication information, the terminal device parses the time domain resource indication information of the data channel based on the time domain resource indication method in the above embodiment.

[0122] In addition, it should be noted that the method provided by the present invention is not limited to the 5G NR system, but is applicable to all mobile communication systems that use multiple subcarrier spacings.

[0123] After the network side device indicates the time domain resource information of the data channel in the above manner, the network side device and the terminal device can send and receive the data channel on the indicated time domain resource. The data channel can be an uplink data channel or a downlink data channel.

[0124] The above is a detailed description of the method provided by the present invention. The following is a description of the device provided by the present invention.

[0125] Figure 8 A structural diagram of a device provided in a first device according to an embodiment of the present invention, such as Figure 8 The device shown may include: an indication transmission unit 00, and may also include an indication determination unit 10.

[0126] The indication determination unit 10 is responsible for determining the time domain resource indication information of the sending data channel based on the preset subcarrier spacing information, and providing the time domain resource indication information to the indication transmission unit 00 for sending.

[0127] The indication transmission unit 00 is responsible for sending time domain resource indication information of a data channel to a second device based on preset subcarrier spacing information in a mobile communication system adopting multiple subcarrier spacings.

[0128] Fig. 9 A structural diagram of a device provided in a second device according to an embodiment of the present invention, such as Fig. 9 The device shown may include: an indication transmission unit 00, and may also include an indication parsing unit 20.

[0129] The indication transmission unit 00 receives the time domain resource indication information of the data channel sent by the first device based on the preset subcarrier spacing information in the mobile communication system using multiple subcarrier spacings.

[0130] The indication parsing unit 20 is responsible for parsing the time domain resource indication information of the data channel received by the indication determining unit 00 based on the preset subcarrier spacing information to determine the time domain resources occupied by the data channel.

[0131] Similar to the method embodiment, the first device may be a network side device, and the second device may be a terminal device. Alternatively, both the first device and the second device may be terminal devices.

[0132] In the device embodiment, the indication of the time domain resource information of the data channel based on the preset subcarrier spacing information can refer to the relevant description in the method embodiment, which will not be repeated here.

[0133] The above method and apparatus provided in the embodiments of the present invention may be implemented in the form of one or more integrated circuits such as codec chips, or may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium. Each unit in the above embodiment may be implemented in the form of hardware or in the form of a software functional module. The present invention does not limit any specific form of the combination of hardware and software.

[0134] For example, it can be implemented by a device, which includes:

[0135] One or more processors;

[0136] Memory;

[0137] One or more programs, the one or more programs are stored in the memory and are executed by the one or more processors to implement the following operations:

[0138] In a mobile communication system using multiple subcarrier spacings, sending time domain resource indication information of a data channel to a second device based on preset subcarrier spacing information; or,

[0139] Time domain resource indication information of a data channel sent by a first device based on preset subcarrier spacing information is received.

[0140] In addition, with the development of time and technology, the meaning of medium is becoming more and more extensive, and the dissemination path of the program is no longer limited to tangible media, and it can also be downloaded directly from the network. Any combination of one or more computer-readable media can be used. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable storage media can be, for example, - but not limited to - electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above. More specific examples of computer-readable storage media (non-exhaustive list) include: electrical connections with one or more wires, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this document, computer-readable storage media can be any tangible medium containing or storing programs, which can be used by or in combination with instruction execution systems, devices or devices.

[0141] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0142] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for indicating time domain resource information, It is characterized in that The method includes: In a mobile communication system using multiple subcarrier spacings, a terminal device receives time domain resource indication information of a data channel sent by a network device based on preset subcarrier spacing information. The preset subcarrier spacing information includes one of the multiple subcarrier spacings; wherein the time domain resource indication information of the data channel includes: a time domain starting point and a time domain length of the data channel; wherein the time domain length of the data channel is indicated based on the subcarrier spacing adopted by the data channel; The time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain length of the data channel is indicated in units of a first symbol length or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

2. The method according to claim 1, It is characterized in that The time domain resource indication information of the data channel also includes at least one of the following: subcarrier spacing indication information on which the time domain resource indication information is based; The subcarrier spacing value on which the time domain resource indication information is based; The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

3. The method according to claim 1, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel; or, The time domain starting point of the data channel is indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

4. The method according to claim 3, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain starting point of the data channel is indicated in units of a first symbol length and / or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

5. The method according to claim 4, It is characterized in that The time domain starting point of the data channel is indicated in units of a first symbol length and / or a first time slot length, specifically including: The time domain starting point of the data channel is indicated by the number of first symbol lengths and / or first time slot lengths included in the offset of the time domain position of the data channel relative to the control channel; or, The time domain starting point of the data channel is indicated by the number of first symbol lengths and / or first time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region including the control channel.

6. The method according to claim 5, It is characterized in that The time domain position of the control channel includes: The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the subcarrier spacing of the data channel.

7. The method according to claim 3, It is characterized in that The rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

8. The method according to claim 7, It is characterized in that The time domain starting point of the data channel is indicated based on a rule, specifically including: The time domain starting point of the data channel is indicated in units of a second symbol length and / or a second time slot length, wherein the second symbol length is a symbol length based on the maximum subcarrier spacing, and the second time slot length is a time slot length based on the maximum subcarrier spacing.

9. The method according to claim 8, It is characterized in that The time domain starting point of the data channel is indicated in units of a second symbol length and / or a second time slot length, specifically including: The time domain starting point of the data channel is indicated by the number of second symbol lengths and / or second time slot lengths included in the offset of the time domain position of the data channel relative to the control channel; or, The time domain starting point of the data channel is indicated by the number of second symbol lengths and / or second time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region including the control channel.

10. The method according to claim 9, It is characterized in that The time domain position of the control channel includes: The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the maximum subcarrier spacing.

11. The method according to claim 5 or 9, It is characterized in that The time domain region containing the control channel includes: A control resource set or a search space comprising the control channel.

12. The method according to claim 1, It is characterized in that In the mobile communication system, the control channel and the data channel use different bandwidth segments.

13. The method according to claim 1, It is characterized in that The mobile communication system using multiple subcarrier spacings includes: a 5G NR system.

14. A device for indicating time domain resource information, It is characterized in that The device is arranged at the terminal side and includes: An indication transmission unit, configured to receive, in a mobile communication system using multiple subcarrier spacings, time domain resource indication information of a data channel sent by a network device based on preset subcarrier spacing information, wherein the preset subcarrier spacing information includes one of the multiple subcarrier spacings; wherein the time domain resource indication information of the data channel includes: a time domain starting point and a time domain length of the data channel; wherein the time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel; The time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain length of the data channel is indicated in units of a first symbol length or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

15. The device according to claim 14, It is characterized in that The device further comprises: an indication parsing unit; The indication transmission unit is used to receive the time domain resource indication information of the data channel sent by the network device; The indication parsing unit is used to parse the received time domain resource indication information of the data channel based on the preset subcarrier spacing information to determine the time domain resources occupied by the data channel.

16. The device according to claim 14, It is characterized in that The time domain resource indication information of the data channel also includes at least one of the following: subcarrier spacing indication information on which the time domain resource indication information is based; The subcarrier spacing value on which the time domain resource indication information is based; The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

17. The device according to claim 14, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel; or, The time domain starting point of the data channel is indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

18. The device according to claim 17, It is characterized in that The rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

19. The device according to claim 14, It is characterized in that In the mobile communication system, the control channel and the data channel use different bandwidth segments.

20. A method for indicating time domain resource information, It is characterized in that The method includes: In a mobile communication system using multiple subcarrier spacings, a network device sends time domain resource indication information of a data channel to a terminal device based on preset subcarrier spacing information. The preset subcarrier spacing information includes one of the multiple subcarrier spacings; wherein the time domain resource indication information of the data channel includes: a time domain starting point and a time domain length of the data channel; wherein the time domain length of the data channel is indicated based on the subcarrier spacing adopted by the data channel; The time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain length of the data channel is indicated in units of a first symbol length or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

21. The method according to claim 20, It is characterized in that The time domain resource indication information of the data channel also includes at least one of the following: subcarrier spacing indication information on which the time domain resource indication information is based; The subcarrier spacing value on which the time domain resource indication information is based; The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

22. The method according to claim 20, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel; or, The time domain starting point of the data channel is indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

23. The method according to claim 22, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain starting point of the data channel is indicated in units of a first symbol length and / or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

24. The method according to claim 23, It is characterized in that The time domain starting point of the data channel is indicated in units of a first symbol length and / or a first time slot length, specifically including: The time domain starting point of the data channel is indicated by the number of first symbol lengths and / or first time slot lengths included in the offset of the time domain position of the data channel relative to the control channel; or, The time domain starting point of the data channel is indicated by the number of first symbol lengths and / or first time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region including the control channel.

25. The method according to claim 24, It is characterized in that The time domain position of the control channel includes: The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the subcarrier spacing of the data channel.

26. The method according to claim 22, It is characterized in that The rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

27. The method according to claim 26, It is characterized in that The time domain starting point of the data channel is indicated based on a rule, specifically including: The time domain starting point of the data channel is indicated in units of a second symbol length and / or a second time slot length, wherein the second symbol length is a symbol length based on the maximum subcarrier spacing, and the second time slot length is a time slot length based on the maximum subcarrier spacing.

28. The method according to claim 27, It is characterized in that The time domain starting point of the data channel is indicated in units of a second symbol length and / or a second time slot length, specifically including: The time domain starting point of the data channel is indicated by the number of second symbol lengths and / or second time slot lengths included in the offset of the time domain position of the data channel relative to the control channel; or, The time domain starting point of the data channel is indicated by the number of second symbol lengths and / or second time slot lengths included in the offset of the time domain position of the data channel relative to the time domain region including the control channel.

29. The method according to claim 28, It is characterized in that The time domain position of the control channel includes: The time domain start point or the time domain end point of the control channel is located in a symbol or a time slot based on the maximum subcarrier spacing.

30. The method according to claim 24 or 28, It is characterized in that The time domain region containing the control channel includes: A control resource set or a search space comprising the control channel.

31. The method according to claim 20, It is characterized in that In the mobile communication system, the control channel and the data channel use different bandwidth segments.

32. The method according to claim 20, It is characterized in that The mobile communication system using multiple subcarrier spacings includes: a 5G NR system.

33. A device for indicating time domain resource information, It is characterized in that The device is arranged on the network side and includes: An indication transmission unit, configured to send time domain resource indication information of a data channel to a terminal device based on preset subcarrier spacing information in a mobile communication system using multiple subcarrier spacings, wherein the preset subcarrier spacing information includes one of the multiple subcarrier spacings; wherein the time domain resource indication information of the data channel includes: a time domain starting point and a time domain length of the data channel; wherein the time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel; The time domain length of the data channel is indicated based on the subcarrier spacing used by the data channel, specifically including: The time domain length of the data channel is indicated in units of a first symbol length or a first time slot length, wherein the first symbol length is a symbol length based on the subcarrier spacing adopted by the data channel, and the first time slot length is a time slot length based on the subcarrier spacing adopted by the data channel.

34. The device according to claim 33, It is characterized in that The device also includes: an indication determining unit; the indication determining unit is used to determine time domain resource indication information for sending a data channel based on preset subcarrier spacing information, and provide the time domain resource indication information to the indication transmission unit.

35. The device according to claim 33, It is characterized in that The time domain resource indication information of the data channel also includes at least one of the following: subcarrier spacing indication information on which the time domain resource indication information is based; The subcarrier spacing value on which the time domain resource indication information is based; The time domain resource indication information is based on rule indication information, where the rule is based on multiple subcarrier spacings.

36. The device according to claim 33, It is characterized in that The time domain starting point of the data channel is indicated based on the subcarrier spacing used by the data channel; or, The time domain starting point of the data channel is indicated based on a rule, and the rule is based on a plurality of subcarrier spacings.

37. The device according to claim 36, It is characterized in that The rule includes: a maximum subcarrier spacing among a plurality of subcarrier spacings adopted by the mobile communication system.

38. The device according to claim 33, It is characterized in that In the mobile communication system, the control channel and the data channel use different bandwidth segments.

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