CN107889251B - Method for determining time domain resource unit set structure, network equipment and terminal - Google Patents

Method for determining time domain resource unit set structure, network equipment and terminal Download PDF

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CN107889251B
CN107889251B CN201610879294.9A CN201610879294A CN107889251B CN 107889251 B CN107889251 B CN 107889251B CN 201610879294 A CN201610879294 A CN 201610879294A CN 107889251 B CN107889251 B CN 107889251B
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time domain
domain resource
resource unit
indication information
data transmission
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CN107889251A (en
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张弛
王亚飞
李俊超
龚政委
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency

Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method for determining a time domain resource unit set structure, network equipment and a terminal, which are used for improving the flexibility of uplink and downlink transmission resource allocation. In the embodiment of the invention, network equipment generates first indication information, and sends the first indication information to a terminal through public control information or terminal specific control information in the time domain resource unit set; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource units in the time domain resource unit set, so that the purpose of dynamically indicating the structure of the time domain resource units is achieved, and the flexibility of uplink and downlink transmission resource allocation is improved.

Description

Method for determining time domain resource unit set structure, network equipment and terminal
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method for determining a time domain resource unit set structure, network equipment and a terminal.
Background
With the development of wireless network technology, various new services come out endlessly, and the requirements of different services on resources are different, which requires that limited resources can be used more efficiently in a future wireless network. For example, real-time interactive application scenes such as online games have high requirements on interaction delay, and the interaction delay can be reduced by quickly switching uplink and downlink subframes; for another example, in an application scenario with a high requirement on the transmission rate of downlink data, such as online Video On Demand (VOD), a wireless network needs to configure more downlink subframe resources; for another example, for applications with high requirements on uplink data transmission rate, such as local resource sharing, more uplink subframe resources should be allocated.
In order to enable more efficient use of limited resources in future wireless networks, attention is paid to Dynamic Time Division Duplex (D-TDD) technology. D-TDD means that the network equipment can flexibly adjust the configuration of uplink and downlink subframes, so that the network equipment can dynamically adjust the configuration of TDD data subframes according to the requirements of different services on the uplink and downlink resources, thereby achieving the purpose of optimizing resource utilization.
Standardization of D-TDD, also referred to as Enhanced Interference Management and traffic Adaptation (eIMTA) in the standard, has been primarily done in 3GPP at Release 12. However, the current D-TDD has limited kinds and modes of subframe configurations, and is configured in a frame level, and at least one frame structure is configured in each configuration, each frame includes 10 subframes, and each subframe of the 10 subframes is defined in advance in the standard for transmitting uplink data or downlink data. Fig. 1 illustrates a schematic diagram of 7 TDD frame configuration patterns currently used by eIMTA in 3GPP, which is introduced in conjunction with configuration pattern 0(config.0) in fig. 1, as shown in configuration pattern 0 in fig. 1, a network device indicates to a terminal a structure of one frame at a time, where subframe 0 and subframe 5 are used for transmitting downlink data, subframe 2, subframe 3, subframe 4, subframe 7, subframe 8, and subframe 9 are used for transmitting uplink data, and subframe 1 and subframe 6 are special subframes including a downlink portion, a guard interval, and an uplink portion, where the guard interval is used to provide necessary guard time for downlink/uplink switching.
As can be seen from fig. 1, in the prior art, the uplink and downlink subframes are configured by using the frame level as a terminal, the granularity is large, and the ratio of the uplink and downlink subframes is predefined, so that the selectable frame configuration modes are limited, only 7, and thus, the current configuration modes of the uplink and downlink subframes are not sufficient to support various service scenes, and the flexibility is limited.
Disclosure of Invention
The embodiment of the invention provides a method for determining a time domain resource unit set structure, network equipment and a terminal, which are used for improving the flexibility of uplink and downlink transmission resource allocation.
In a first aspect, an embodiment of the present invention provides a method for determining a time domain resource unit set structure, where the time domain resource unit set includes N time domain resource units; n is an integer greater than or equal to 1; the method comprises the following steps: the network equipment generates first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; the network equipment sends the first indication information to a terminal through common control information or terminal specific control information in the time domain resource unit set; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Because the terminal can determine the structure of each time domain resource unit, and then determine the structure of a time domain resource unit set according to the structure of each time domain resource unit, and because the network equipment sends the first indication information to the terminal through the public control information or the terminal specific control information in the time domain resource unit set, and the public control information and the terminal specific control information are borne on the continuous symbols occupied by the downlink control area of the time domain resource unit set, the network equipment can flexibly indicate the structure of each time domain resource unit in each time domain resource unit set in a mode of indicating a time domain resource unit set at each time, thereby improving the flexibility and being more suitable for changeable service environments.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, the first indication information is further used to indicate a number M of time domain resource units in the aggregated time domain resource unit; m is an integer greater than or equal to 0 and less than or equal to N-1; optionally, the network device sends the data transmission direction of the time domain resource unit in which the first indication information is located to the terminal in time sequence first, but does not send the transmission direction of the time domain resource unit in the aggregated time domain resource unit. Therefore, when the terminal determines the data transmission direction of the time domain resource unit where the first indication information is located, the data transmission direction of the M time domain resource units in the aggregated time domain resource unit is determined, so that the data transmission direction of the time domain resource unit in the aggregated time domain resource unit does not need to be indicated, and further the signaling overhead of the indication information can be saved.
The network device indicates, to the terminal, the number of consecutive symbols occupied by a downlink control region, the number of consecutive symbols occupied by an uplink control region, and the number of consecutive symbols occupied by a data transmission region in each time domain resource unit in the aggregated time domain resource unit in a first manner, where the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit are the same; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit. That is to say, the network device may transmit, to the terminal, the number of symbols of each region included in the time domain resource unit in which the first indication information is located in chronological order first, and then indicate the number of symbols of each region included in one time domain resource unit in the aggregated time domain resource unit, so that the terminal may determine the number of symbols of each region included in each time domain resource unit.
Optionally, the network device generates second indication information; wherein, the second indication information is used for indicating the number of continuous symbols occupied by a guard interval GP region in the time domain resource unit set; and the network equipment sends the second indication information to the terminal through the common control information or the terminal specific control information. Therefore, the network equipment can flexibly determine the number of GP zones in each time domain resource unit set and the number of symbols occupied by each GP zone, and the flexibility of setting the GP zones in the time domain resource unit set is improved.
Optionally, the network device generates third indication information; wherein, the third indication information is used for indicating a time length corresponding to one symbol in the time domain resource unit set; and the network equipment sends the third indication information to the terminal through the common control information or the terminal specific control information. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the network device generates fourth indication information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; and the network equipment sends the fourth indication information to the terminal through the common control information or the terminal specific control information. Therefore, the network equipment can flexibly determine the total number of the symbols occupied by each time domain resource unit in each time domain resource unit set, and the flexibility of the time domain resource unit structure is improved.
Optionally, when the data transmission direction in which at least one time domain resource unit exists in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the method further includes: the network equipment generates fifth indication information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; and the network equipment sends the fifth indication information to the terminal through the common control information or the terminal specific control information. Optionally, the time offset region is used for cross interference measurement. Therefore, the network device in the embodiment of the invention can be applied to a dynamic sensing (sensing) scene, and the relevant sending and receiving processes of the measurement signal are carried out in the scene.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction; k time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the time domain resource unit set, wherein the K time domain resource units are positioned in other time domain resource unit sets; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit. That is, the time domain resource units may include groups of time domain resource units that span the time domain resource units.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Therefore, the structure indication of the cross-time domain resource unit can be realized, thereby further saving the signaling of the uplink request and the signaling of the downlink indication, and also enabling the structure of the time domain resource unit set to be more flexible. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0. Therefore, the terminal can determine the structure of each time domain resource unit in the resource unit set in advance, and convenience is provided for the terminal to send and receive data.
Optionally, the network device indicates, to the terminal through a second manner, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit of the first aggregated time domain resource unit, where the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit are the same; whereinThe second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit. That is, due to M1The structure of the time domain resource units is the same, so the network device only indicates the M1The structure of one time domain resource unit in the time domain resource units is only needed, and the network equipment can indicate the structure of each time domain resource unit in the first aggregation time domain resource unit only through one structure indication field, so that the signaling overhead of the indication information is reduced.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit and a data transmission direction of the time domain resource unit in which the first indication information is located through a sixth manner; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located. That is to say, the network device sends the data transmission direction of the time domain resource unit in which the first indication information is located to the terminal in time sequence, and when the terminal determines the data transmission direction of the time domain resource unit in which the first indication information is located, it determines that M is in the first aggregated time domain resource unit1The data transmission direction of each time domain resource unit, thereby saving the signaling overhead of the indication information.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource units in a third manner; wherein the third mode is as follows: indicating a transmission direction of one of the second aggregated time domain resource units. Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, and a number of consecutive symbols occupied by the downlink control region, a number of consecutive symbols occupied by the uplink control region, and a number of consecutive symbols occupied by the data transmission region in each time domain resource unit through a fourth methodThe number of the particles; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, and the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area. That is, due to M2The data transmission direction and structure of each time domain resource unit are the same, so the network equipment only indicates the M2The data transmission direction and structure of one time domain resource unit in the time domain resource units can be indicated, and the network equipment can indicate the data transmission direction and structure of each time domain resource unit in the second aggregation time domain resource unit only through one data transmission direction indication field and one structure indication field, so that the signaling overhead of the indication information is reduced.
Optionally, the common control information is carried in any one of the following channels: a dedicated control channel; performing resource allocation control channel in a static or semi-static mode; a physical downlink control channel. Therefore, in the embodiment of the invention, a plurality of bearing modes bear the common control information, thereby improving the flexibility of the bearing mode of the common control information.
Optionally, when the data transmission direction is an uplink transmission direction transmitted from the terminal to the network device, the ordering among the regions in the time domain resource unit whose transmission direction is the uplink transmission direction satisfies the following condition: and the downlink control region, the GP region, the data transmission region with the data transmission direction being uplink, and the uplink control region are sequentially arranged along the time domain direction.
Optionally, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the data transmission region with the downlink data transmission direction, the GP region and the uplink control region are sequentially arranged along the time domain direction. Optionally, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the time offset region, the data transmission region with the downlink data transmission direction, the GP region, and the uplink control region are sequentially arranged along the time domain direction. The number of the symbols occupied by each region is an integer greater than or equal to zero, so that the flexibility of the structure of each time domain resource unit is improved, and the time offset region enables the time domain resource unit provided by the embodiment of the invention to be more suitable for a dynamic sensing scene, thereby enlarging the application range.
Optionally, the first indication information is used to indicate: the number N of time domain resource units included in the time domain resource unit set; a structural form index value of the set of time domain resource units; and the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit. The time domain resource units comprise a third group of time domain resource units and/or a fourth group of time domain resource units. In this embodiment of the present invention, the third group of time domain resource units includes at least two time domain resource units, and the transmission direction of each time domain resource unit included in the third group of time domain resource units is the same as the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region. And the fourth group of time domain resource units are the time domain resource units in the time domain resource unit set except the third group of time domain resource units. Optionally, the third set of time domain resource units comprises consecutive time domain resource units. This scheme reduces the signaling overhead of the indication information.
In this scheme, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit may be indicated by:
for each time domain resource unit in the third group of time domain resource units, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit in the third group of time domain resource units can be indicated in a manner of only indicating the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of one time domain resource unit in the third group of time domain resource units, thereby reducing signaling overhead of indicating information of the third group of time domain resource units;
and for each time domain resource unit in the fourth group of time domain resource units, indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit in the fourth group of time domain resource units.
The structural form of the time domain resource unit set in the embodiment of the invention comprises the time domain resource unit type in the time domain resource unit, the data transmission direction of the time domain resource unit and the sequencing of the time domain resource unit. In the embodiment of the present invention, the index value of the structural form of the time domain resource unit set may indicate the type of the time domain resource unit, the data transmission direction of the time domain resource unit, and the sequence of the time domain resource unit included in the time domain resource unit set; and the number of each type of time domain resource unit can be indicated by combining the number N of the time domain resource units. In the embodiment of the present invention, a correspondence between the structural form of the time domain resource unit set and the structural form index value of the time domain resource unit set may be predefined.
Further, the structural form of the time domain resource unit set in the embodiment of the present invention further includes the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is to say, the structural form index value of the time domain resource unit set may also indicate the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is, in the embodiment of the present invention, the structural form of the time domain resource unit is defined by the structural form index value, and the number of symbols of each region included in each time domain resource unit is also predefined, so that the first indication information includes the number N of time domain resource units included in the time domain resource unit set and the structural form index value of the time domain resource unit set, thereby reducing the instruction overhead of the first indication information.
In a second aspect, an embodiment of the present invention provides a method for determining a time domain resource unit set structure, where the time domain resource unit set includes N time domain resource units; n is an integer greater than or equal to 1; the method comprises the following steps: the terminal receives first indication information sent by the network equipment through the common control information or the terminal specific control information in the time domain resource unit set; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Because the terminal can determine the structure of each time domain resource unit, and then determine the structure of a time domain resource unit set according to the structure of each time domain resource unit, and because the network equipment sends the first indication information to the terminal through the public control information or the terminal specific control information in the time domain resource unit set, and the public control information and the terminal specific control information are borne on the continuous symbols occupied by the downlink control area of the time domain resource unit set, the network equipment can flexibly indicate the structure of each time domain resource unit in each time domain resource unit set in a mode of indicating a time domain resource unit set at each time, thereby improving the flexibility and being more suitable for changeable service environments.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; wherein M is an integer greater than or equal to 0 and less than or equal to N-1; the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit. Optionally, the network device sends the data transmission direction of the time domain resource unit in which the first indication information is located to the terminal in time sequence first, but does not send the transmission direction of the time domain resource unit in the aggregated time domain resource unit. Therefore, when the terminal determines the data transmission direction of the time domain resource unit where the first indication information is located, the data transmission direction of the M time domain resource units in the aggregated time domain resource unit is determined, so that the data transmission direction of the time domain resource unit in the aggregated time domain resource unit does not need to be indicated, and further the signaling overhead of the indication information can be saved.
The terminal determines the number of continuous symbols occupied by a downlink control area, the number of continuous symbols occupied by an uplink control area and the number of continuous symbols occupied by a data transmission area in each time domain resource unit in the aggregated time domain resource unit, which are indicated by the network equipment, through a first mode; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit. That is to say, the network device may transmit, to the terminal, the number of symbols of each region included in the time domain resource unit in which the first indication information is located in chronological order first, and then indicate the number of symbols of each region included in one time domain resource unit in the aggregated time domain resource unit, so that the terminal may determine the number of symbols of each region included in each time domain resource unit.
Optionally, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, the method further includes: the terminal receives the second indication information sent by the network equipment through the common control information or the terminal specific control information; wherein, the second indication information is used for indicating the number of continuous symbols occupied by a guard interval GP region in the time domain resource unit set; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the second indication information. Therefore, the network equipment can flexibly determine the number of GP zones in each time domain resource unit set and the number of symbols occupied by each GP zone, and the flexibility of setting the GP zones in the time domain resource unit set is improved.
Optionally, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, the method further includes: the terminal receives the third indication information sent by the network equipment through the common control information or the terminal specific control information; wherein, the third indication information is used for indicating a time length corresponding to one symbol in the time domain resource unit set; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the third indication information. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, the method further includes: the terminal receives the fourth indication information sent by the network equipment through the common control information or the terminal specific control information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fourth indication information. Therefore, the network equipment can flexibly determine the total number of the symbols occupied by each time domain resource unit in each time domain resource unit set, and the flexibility of the time domain resource unit structure is improved.
Optionally, when the data transmission direction in which at least one time domain resource unit exists in the N time domain resource units is a downlink transmission direction from the network device to the terminal, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined sequence between regions in each time domain resource unit of the time domain resource unit set and the first indication information, the method further includes: the terminal receives the fifth indication information sent by the network equipment through the common control information or the terminal specific control information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fifth indication information. Optionally, the time offset region is used for cross interference measurement. Therefore, the network device in the embodiment of the invention can be applied to a dynamic sensing (sensing) scene, and the relevant sending and receiving processes of the measurement signal are carried out in the scene.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, K time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the set of time domain resource units, where the K time domain resource units are located in other sets of time domain resource units; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit. That is, the time domain resource units may include groups of time domain resource units that span the time domain resource units.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Therefore, the structure indication of the cross-time domain resource unit can be realized, thereby further saving the signaling of the uplink request and the signaling of the downlink indication, and also enabling the structure of the time domain resource unit set to be more flexible. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
Optionally, the terminal determines, by a second method, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit, which are indicated by the network device; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the terminal determines the M indicated by the network device through a third method2The data transmission direction of each time domain resource unit in the first aggregation time domain resource units and the data transmission direction of the time domain resource unit where the first indication information is located; wherein the third mode is as follows: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located. Can be used forOptionally, the terminal determines, by a fourth method, the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit indicated by the network device, and the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink and the middle control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area. That is, due to M2The data transmission direction and structure of each time domain resource unit are the same, so the network equipment only indicates the M2The data transmission direction and structure of one time domain resource unit in the time domain resource units can be indicated, and the network equipment can indicate the data transmission direction and structure of each time domain resource unit in the second aggregation time domain resource unit only through one data transmission direction indication field and one structure indication field, so that the signaling overhead of the indication information is reduced.
Optionally, the common control information is carried in any one or any several of the following channels: a dedicated control channel; performing resource allocation control channel in a static or semi-static mode; a physical downlink control channel.
Optionally, when the data transmission direction is an uplink transmission direction transmitted from the terminal to the network device, the ordering among the regions in the time domain resource unit whose transmission direction is the uplink transmission direction satisfies the following condition: and the downlink control region, the GP region, the data transmission region with the data transmission direction being uplink, and the uplink control region are sequentially arranged along the time domain direction. Optionally, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the data transmission region with the downlink data transmission direction, the GP region and the uplink control region are sequentially arranged along the time domain direction. Optionally, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the time offset region, the data transmission region with the downlink data transmission direction, the GP region, and the uplink control region are sequentially arranged along the time domain direction. The number of the symbols occupied by each region is an integer greater than or equal to zero, so that the flexibility of the structure of each time domain resource unit is improved, and the time offset region enables the time domain resource unit provided by the embodiment of the invention to be more suitable for a dynamic sensing scene, thereby enlarging the application range.
Optionally, the first indication information is used to indicate: the number N of time domain resource units included in the time domain resource unit set; a structural form index value of the set of time domain resource units; and the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit. The time domain resource units comprise a third group of time domain resource units and/or a fourth group of time domain resource units. In this embodiment of the present invention, the third group of time domain resource units includes at least two time domain resource units, and the transmission direction of each time domain resource unit included in the third group of time domain resource units is the same as the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region. Optionally, the third set of time domain resource units comprises consecutive time domain resource units. And the fourth group of time domain resource units are the time domain resource units in the time domain resource unit set except the third group of time domain resource units. This scheme reduces the signaling overhead of the indication information.
In the scheme, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit are indicated by the following methods:
for each time domain resource unit in the third group of time domain resource units, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit in the third group of time domain resource units can be indicated in a manner of only indicating the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of one time domain resource unit in the third group of time domain resource units, thereby reducing signaling overhead of indicating information of the third group of time domain resource units;
and for each time domain resource unit in the fourth group of time domain resource units, indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit in the fourth group of time domain resource units.
The structural form of the time domain resource unit set in the embodiment of the invention comprises the time domain resource unit type in the time domain resource unit, the data transmission direction of the time domain resource unit and the sequencing of the time domain resource unit. In the embodiment of the present invention, the index value of the structural form of the time domain resource unit set may indicate the type of the time domain resource unit, the data transmission direction of the time domain resource unit, and the sequence of the time domain resource unit included in the time domain resource unit set; and the number of each type of time domain resource unit can be indicated by combining the number N of the time domain resource units. In the embodiment of the present invention, a correspondence between the structural form of the time domain resource unit set and the structural form index value of the time domain resource unit set may be predefined.
Further, the structural form of the time domain resource unit set in the embodiment of the present invention further includes the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is to say, the structural form index value of the time domain resource unit set may also indicate the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is, in the embodiment of the present invention, the structural form of the time domain resource unit is defined by the structural form index value, and the number of symbols of each region included in each time domain resource unit is also predefined, so that the first indication information includes the number N of time domain resource units included in the time domain resource unit set and the structural form index value of the time domain resource unit set, thereby reducing the instruction overhead of the first indication information.
In a third aspect, an embodiment of the present invention provides a network device for a time domain resource unit set structure, which is applicable to a time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1; the network device comprises a processor, a transceiver, and a memory;
the memory is configured to store instructions, and the processor is configured to control the transceiver to perform signal reception and signal transmission according to the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the network device is configured to perform any one of the methods in the first aspect to the second aspect.
In a fourth aspect, an embodiment of the present invention provides a terminal for a time domain resource unit set structure, which is applicable to a time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1; the terminal comprises a processor, a transceiver and a memory;
the memory is configured to store instructions, the processor is configured to control the transceiver to perform signal receiving and signal transmitting according to the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the terminal is configured to perform any one of the methods in the first aspect to the second aspect.
In a fifth aspect, an embodiment of the present invention provides a network device for a time domain resource unit set structure, configured to implement any one of the methods in the first aspect to the second aspect, where the network device includes corresponding functional modules, which are respectively configured to implement the steps in the above methods.
In a sixth aspect, an embodiment of the present invention provides a method for a terminal in a time domain resource unit set structure to implement any one of the above first aspect to the second aspect, where the method includes corresponding functional modules, which are respectively used to implement the steps in the above method.
In the embodiment of the present invention, the time domain resource unit set includes N time domain resource units; n is an integer greater than or equal to 1; the method comprises the following steps: the network equipment generates first indication information; the first indication information is used to indicate the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, the number of consecutive symbols occupied by the data transmission region, and the data transmission direction of each time domain resource unit in the time domain resource unit set. Therefore, the terminal can determine the structure of each time domain resource unit, and further determine the structure of a time domain resource unit set according to the structure of each time domain resource unit, and the network equipment can flexibly indicate the structure of each time domain resource unit in each time domain resource unit set in a mode of indicating one time domain resource unit set at a time because the network equipment sends the first indication information to the terminal through the public control information or the terminal specific control information in the time domain resource unit set, and the public control information and the terminal specific control information are borne on continuous symbols occupied by the downlink control area of the first time domain resource unit in the time domain resource unit set, so that the flexibility is improved, and the network equipment is more suitable for variable service environments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic diagram illustrating 7 TDD frame configuration modes currently used by eIMTA in 3 GPP;
FIG. 2 is a schematic system architecture diagram of an embodiment of the present invention;
fig. 2a is a schematic flowchart of a method for determining a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2b is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2c is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2d is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2e is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2f is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2g is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2h is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2i is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2j is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2k is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2l is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2m is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2n is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2o is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2p is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2q is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 2r is a schematic diagram of a time domain resource unit set structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network device for determining a time domain resource unit set structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal for determining a time domain resource unit set structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another network device for determining a time domain resource unit set structure according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another terminal for determining a time domain resource unit set structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be understood that the technical solution of the embodiment of the present invention is mainly applied to a Long Term Evolution (LTE)/5G New radio access technology (New RAT, NR) system.
Fig. 2 illustrates a system architecture, and as shown in fig. 2, the communication system 2000 may include a network element 2001 and a network element 2002. The network element may be connected to the network device via interface S1, such as network element 2001 to network device 2003 and network device 2004, and network element 2002 to network device 2005 and network device 2004.
Any one of the network element 2001 and the network element 2002 may be a key control node, belong to a core network element, and be responsible for a signaling processing part, such as a control plane function, including functions of access control, mobility management, attach and detach, a session management function, and gateway selection; and also can be responsible for the user plane function of user data forwarding. When the system architecture is an LTE system, the network element 2001 and the network element 2002 may be a Mobility Management Entity (MME) or a Serving GateWay (S-GW) in the LTE system.
Any one of the network device 2003, the network device 2004, and the network device 2005 may be responsible for functions of radio resource management, Quality of Service (QoS) management, data compression, encryption, and the like on the air interface side; and may also be responsible for forwarding control plane signaling and user plane traffic data, etc. When the system architecture is an LTE system, any one of the network device 2003, the network device 2004, and the network device 2005 may be an Evolved Node B (eNodeB, abbreviated eNB). When the system architecture is a 5G network, any one of the network device 2003, the network device 2004, and the network device 2005 may be a Transmission Reception Point (TRP).
Any of the terminal 2006, the terminal 2007, the terminal 2008, the terminal 2009, the terminal 2010, and the terminal 2011 may be a device on the access network side. When the system architecture is an LTE system, for example, any one of the terminal 2006, the terminal 2007, the terminal 2008, the terminal 2009, the terminal 2010, and the terminal 2011 may be a handheld terminal, a notebook computer, or other devices that can access a network.
When the system architecture is an LTE system, the network devices may be connected through an X2 interface. The network device may be connected to the terminal through a wireless connection, a wired connection, or other means, for example, the network device is connected to the terminal through an interface Uu, for example, the network device 2003 is connected to the terminal 2006 and the terminal 2007, the network device 2004 is connected to the terminal 2008 and the terminal 2009, and the network device 2005 is connected to the terminal 2010 and the terminal 2011. Wherein the respective interface functions are described as follows.
Interface S1: is the standard interface between the eNB and the core network. The eNB is connected with the MME through an S1-MME interface and is used for controlling the transmission of signaling; the eNB is connected with the S-GW through an S1-U interface and is used for transmitting user data. Wherein the S1-MME interface and the S1-U interface are collectively called S1 interface.
X2 interface: and the standard interface between the eNB and the eNB is used for realizing the intercommunication between the base stations.
A Uu interface: the Uu interface is a radio interface between the UE and the base station, and the UE accesses the LTE network through the Uu interface.
In the embodiment of the present invention, a network device issues some indication information, such as first indication information, to a terminal within a coverage area of the network device, and the terminal determines a structure of each time domain resource unit in a time domain resource unit set according to the indication information issued by the network device, and sends and receives uplink and downlink data according to the structure of the time domain resource unit in the time domain resource unit set.
The time domain resource unit set structure in the embodiment of the invention comprises one or more time domain resource units, the total number of symbols included in each time domain resource unit is the same, and the time length occupied by each symbol is also the same. The symbol referred to in the embodiments of the present invention is a time domain symbol. Specifically, the following description is provided: the time domain resource unit described in the embodiments of the present invention is a time domain resource scheduling and allocating unit in a wireless communication system, such as an LTE system, an LTE evolved system, or a 5G system, such as NR, and includes, but is not limited to, any one of a subframe, a subframe set, a slot (slot), a short-slot (mini-slot), a Transmission Time Interval (TTI), a TTI set, a time domain symbol, and a time domain symbol set. Terms similar to the above concepts newly defined in New radio access technology (New RAT, abbreviated NR) or 5G may also be used as the time domain resource units described in this patent, which is not limited in the present invention.
Based on the system architecture shown in fig. 2, fig. 2a exemplarily shows a schematic flow chart of a method for determining a time domain resource unit set structure provided by an embodiment of the present invention, where the time domain resource unit set includes N time domain resource units; n is an integer greater than or equal to 1. As shown in fig. 2a, the method comprises the steps of:
step 2101, the network device generates first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set;
step 2102, the network device sends first indication information to the terminal through common control information or terminal specific control information in the time domain resource unit set; the common control information and the terminal specific control information are carried on continuous symbols occupied by a downlink control area of the time domain resource unit set; optionally, the common control information and the terminal specific control information are carried on a continuous symbol occupied by a downlink control region of a first time domain resource unit of the time domain resource unit set; optionally, the common control information and the terminal specific control information are carried on a first symbol occupied by a downlink control region of a first time domain resource unit of the time domain resource unit set;
step 2103, the terminal receives first indication information sent by the network device through the public control information corresponding to the time domain resource unit set or the terminal specific control information corresponding to the time domain resource unit set;
step 2104, the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set and the common control information.
Optionally, in the step 2101 above, the network device may flexibly configure the structure and transmission direction of each time domain resource unit in the time domain resource unit set according to the current service scenario, and by applying the scheme provided in the embodiment of the present invention, the network device notifies the terminal of the structure of each time domain resource unit in each time domain resource unit set, and the network device indicates the terminal in a dynamic manner according to the current service application scenario, that is, notifies the terminal of the structure of each time domain resource unit in the time domain resource unit set through common control information or terminal-specific control information, so that uplink and downlink transmission resources may be dynamically allocated in real time, thereby achieving the goal of efficiently adapting to the differentiated service application scenario.
In step 2103, the terminal receives the first indication information sent by the network device through the common control information or the terminal specific control information in the time domain resource unit set, and since the common control information or the terminal specific control information is located in the downlink control area, i.e., the initial part of the time domain resource unit set, the terminal can only analyze the initial part of the time domain resource aggregation, i.e., determine the number of consecutive symbols occupied by the downlink control area and the number of consecutive symbols occupied by the uplink control area in the time domain resource unit set, so that the terminal can determine the structure of each time domain resource unit in the time domain resource unit set as early as possible, thereby reducing the power consumption of the terminal and the complexity of information processing performed by the terminal.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; the first indication information is further used for indicating the number M of time domain resource units in the aggregated time domain resource unit; m is an integer greater than or equal to 0 and less than or equal to N-1; that is to say, the number M of time domain resource units included in the aggregated time domain resource unit in the embodiment of the present invention refers to M time domain resource units that are continuously allocated and indicated by the same indication information, whose data transmission directions are consistent with the data transmission direction of the time domain resource unit in which the indication information is located, and are adjacent to the time domain resource unit in which the indication information is located.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the aggregated time domain resource unit and a data transmission direction of the time domain resource unit in which the first indication information is located through a fifth manner; wherein the fifth mode is: indicating the data transmission direction of the time domain resource unit in which the first indication information is located; the number of the continuous symbols occupied by the downlink control area, the number of the continuous symbols occupied by the uplink control area and the number of the continuous symbols occupied by the data transmission area in each time domain resource unit are the same. Correspondingly, the terminal determines the data transmission direction of each time domain resource unit in the aggregated time domain resource units indicated by the network equipment through a fifth mode.
Specifically, in the embodiment of the present invention, for N time domain resource units, the structure and the transmission direction of each time domain resource unit may be respectively indicated, for example, each time domain resource unit corresponds to one transmission direction indication field and one structure indication field, and the structure indication field may indicate the number of consecutive symbols occupied by each area included in the time domain resource unit.
Under the condition that the aggregation time domain resource unit is included in the time domain resource unit set, because the data transmission directions of the M time domain resource units are consistent, and the data transmission directions of the M time domain resource units are consistent with the data transmission direction of the time domain resource unit in which the first indication information is located, the network device can indicate the data transmission direction of each time domain resource unit in the aggregation time domain resource unit and the time domain resource unit in which the first indication information is located by using only one transmission direction indication field.
That is to say, the network device sends the data transmission direction of the time domain resource unit in which the first indication information is located to the terminal first in time sequence, and when the terminal determines the data transmission direction of the time domain resource unit in which the first indication information is located, the network device determines the data transmission directions of M time domain resource units in the aggregated time domain resource unit.
In the case that the time domain resource unit set includes the aggregated time domain resource unit, the data transmission directions of the M time domain resource units are the same, but the structures of the M time domain resource units may be all the same, may also be partially the same, or may also be all different. Optionally, if the structure portions of the M time domain resource units are the same or different, the structure of the M time domain resource units may be indicated by indicating the structure of each time domain resource unit.
If the M time domain resource units have the same structure, an optional implementation manner is that the network device indicates, to the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the aggregated time domain resource unit through a first manner; wherein the first mode is as follows: indicating the number of continuous symbols occupied by a downlink control region, the number of continuous symbols occupied by an uplink control region and the number of continuous symbols occupied by a data transmission region in one time domain resource unit in the aggregated time domain resource unit; the number of the continuous symbols occupied by the downlink control area, the number of the continuous symbols occupied by the uplink control area and the number of the continuous symbols occupied by the data transmission area in each time domain resource unit are the same. Correspondingly, the terminal determines the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area in each time domain resource unit in the aggregated time domain resource unit, which are indicated by the network equipment, through a first mode.
That is, since the structures of the M time domain resource units (i.e., the number of symbols included in each region) are the same, the network device only needs to indicate the structure of one time domain resource unit of the M time domain resource units, and the network device can indicate each time domain resource unit structure in the aggregated time domain resource unit only through one structure indication field. Signaling overhead of the indication information is reduced.
On the other hand, the first indication information further includes the number M of the time domain resource units included in the aggregated time domain resource unit in the time domain resource unit set; therefore, on one hand, the network equipment can allocate resources required by a plurality of time domain resource units to the terminal through one-time indication, so that the resource allocation efficiency is improved; on the other hand, the terminal does not need to send the uplink resource scheduling request to the network equipment for multiple times, and transmission resources for the uplink resource scheduling request are saved.
In this embodiment of the present invention, the time domain resource unit set includes one or more time domain resource units, and each region included in each time domain resource unit in this embodiment of the present invention may be: one or more of a downlink control region, a Guard Period (GP) region, a data transmission region, and an uplink control region.
The indication information sent by the network device to the terminal may indicate the structure of each time domain resource unit. The number of continuous symbols occupied by any one region in each time domain resource unit is an integer greater than or equal to zero. For example, for a time domain resource unit, the first indication information indicates that the number of symbols continuously occupied by the downlink control region in the time domain resource unit is zero, the number of symbols continuously occupied by the GP region is zero, the number of symbols continuously occupied by the uplink control region is zero, and the number of symbols continuously occupied by the data transmission region is an integer greater than zero.
In the embodiment of the present invention, the optional downlink control region is used to carry downlink control information, such as scheduling information and resource allocation information sent by the network device. The GP zones are used for switching between downlink and uplink and avoiding downlink to uplink interference in the network. The data transmission regions are used for transmitting uplink data or downlink data, and the data transmission directions of all the data transmission regions included in one time domain resource unit set in the embodiment of the present invention may be the same or multiple. The uplink control region is used for transmitting uplink control information, such as reporting of a measurement result, a next data transmission request, and the like.
The terminal and the network device may predetermine the ordering among the regions in each time domain resource unit of the time domain resource unit set, and the terminal determines the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit by receiving the indication information sent by the network device.
Optionally, in the embodiment of the present invention, the total number of symbols occupied by each time domain resource unit may be a variable, and the network device indicates the variable to the terminal; or may be a value agreed upon by the network device and the terminal. No matter which way the terminal determines the total number of the symbols occupied by each time domain resource unit, the terminal can determine the number of the continuous symbols occupied by the GP zones in each time domain resource unit through a calculation way.
In another implementation manner, optionally, the network device may indicate the number of consecutive symbols occupied by the GP region in each time domain resource unit by sending indication information to the terminal. Specifically, the network device generates second indication information; the second indication information is used for indicating the number of continuous symbols occupied by a GP zone in the time domain resource unit set; and the network equipment sends the second indication information to the terminal through the common control information or the terminal specific control information. Correspondingly, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the terminal receives the second indication information sent by the network device through the common control information or the terminal specific control information; wherein the second indication information is used for indicating the number of consecutive symbols occupied by a guard interval GP region in the time domain resource unit set. The terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the second indication information. Therefore, the network equipment can flexibly determine the number of GP zones in each time domain resource unit set and the number of symbols occupied by each GP zone, and the flexibility of setting the GP zones in the time domain resource unit set is improved.
Optionally, the network device may also notify the terminal of the number of consecutive symbols occupied by the GP region in a static or semi-static manner, specifically, the static or semi-static manner indicates that the number of consecutive symbols occupied by the GP region is a predetermined fixed value, or the number of consecutive symbols occupied by the GP region is notified to the terminal by the network device through a broadcast signaling or Radio Resource Control (RRC) signaling, or the like.
In specific implementation, the time length corresponding to one symbol in the time domain resource unit set may be predetermined between the network device and the terminal; or may be indicated by indication information sent by the network device to the terminal. In a possible implementation manner, the network device generates third indication information; wherein, the third indication information is used for indicating a time length corresponding to one symbol in the time domain resource unit set; and the network equipment sends the third indication information to the terminal through the common control information or the terminal specific control information. Correspondingly, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the terminal receives the third indication information sent by the network device through the common control information or the terminal specific control information; wherein the third indication information is used to indicate a time length corresponding to one symbol in the time domain resource unit set.
Specifically, the third indication information may be a bit string capable of mapping a time length corresponding to one symbol; the terminal can also be information indicating the interval of the subcarriers, and the length of the time occupied by one symbol can be determined according to the relation between the information indicating the interval of the subcarriers and the length of the time occupied by one symbol; or the third indication information may be information capable of mapping a time length corresponding to one symbol.
One optional scheme is that if the terminal obtains third indication information by analyzing common control information or terminal specific control information of the time domain resource unit set, the terminal determines a time length corresponding to one symbol in the time domain resource unit set according to the third indication information; if the terminal does not acquire the third indication information by analyzing the common control information or the terminal specific control information of the time domain resource unit set, it indicates that the network device does not send the third indication information to the terminal, and the terminal takes the reference value agreed with the network device as the time length corresponding to one symbol in the time domain resource unit set.
The terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the third indication information.
In a specific implementation, the third indication information may also be referred to as Subcarrier Spacing (Subcarrier Spacing), and the third indication information may be located on Terminal-specific control information (Terminal-specific) corresponding to the Terminal or located in common control information. In an alternative embodiment, one or more time domain resource units may be defined in the protocol, and each time domain resource unit includes the same number of symbols. The subcarrier intervals in different types of time domain resource units may be different, that is, the time length occupied by each symbol in different types of time domain resource units may be different. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the network device generates fourth indication information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; and the network equipment sends the fourth indication information to the terminal through the common control information or the terminal specific control information. Correspondingly, optionally, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined ordering among the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the terminal receives the fourth indication information sent by the network device through the common control information or the terminal specific control information; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fourth indication information.
Optionally, in the embodiment of the present invention, the total number of symbols occupied by each time domain resource unit may be a variable, and the network device indicates the variable to the terminal; or may be a value agreed upon by the network device and the terminal. One optional scheme is that if the terminal obtains fourth indication information by analyzing the common control information or the terminal specific control information of the time domain resource unit set, the terminal determines the total number of symbols occupied by one symbol in the time domain resource unit set according to the fourth indication information; if the terminal does not acquire the fourth indication information by analyzing the common control information or the terminal specific control information of the time domain resource unit set, it indicates that the network device does not send the fourth indication information to the terminal, and the terminal takes the total number of symbols occupied by each time domain resource unit agreed with the network device as the total number of symbols occupied by each time domain resource unit in the time domain resource unit set.
Therefore, the network equipment can flexibly determine the total number of the symbols occupied by each time domain resource unit in each time domain resource unit set, and the flexibility of the time domain resource unit structure is improved.
Optionally, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the network device generates fifth indication information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; and the network equipment sends the fifth indication information to the terminal through the common control information or the terminal specific control information. Correspondingly, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined sequence between each region in each time domain resource unit of the time domain resource unit set and the first indication information, the terminal receives the fifth indication information sent by the network device through the common control information or the terminal specific control information; the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps: and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fifth indication information.
Optionally, the network device and the terminal are respectively configured with a cross interference measurement function, that is, have a relevant configuration capable of performing cross interference measurement, and can achieve the purpose of measuring interference strength. Therefore, the network device in the embodiment of the invention can be applied to a dynamic sensing (sensing) scene, and the relevant sending and receiving processes of the measurement signal are carried out in the scene. The added time offset (offset) region in the embodiments of the present invention can be used for sending or receiving a measurement signal. Fig. 2b and fig. 2c respectively illustrate a schematic structural diagram of a time domain resource unit set, as shown in fig. 2b, including a downlink control region for carrying downlink control information, a GP region, a data transmission region for carrying uplink data, and an uplink control region for carrying uplink control information. In fig. 2b, the GP region is used to measure the time domain resources of the first signal. As shown in fig. 2c, the uplink control area includes a downlink control area for carrying downlink control information, a time offset area, a data transmission area for carrying downlink data, and an uplink control area for carrying uplink control information. As shown in fig. 2 c: the time offset (offset) region is a time domain resource for transmitting the second signal, i.e. the interference sensing signal.
In this embodiment of the present invention, optionally, when the data transmission direction is an uplink transmission direction transmitted from the terminal to the network device, the ordering among the regions in the time domain resource unit whose transmission direction is the uplink transmission direction satisfies the following condition: and the downlink control region, the GP region, the data transmission region with the data transmission direction being uplink, and the uplink control region are sequentially arranged along the time domain direction. The number of continuous symbols occupied by any one region in each time domain resource unit is an integer greater than or equal to zero. For the structural form of each time domain resource unit in the multiple time domain resource unit sets, reference may be made to the following embodiment section.
In an optional scheme, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the data transmission region with the downlink data transmission direction, the GP region and the uplink control region are sequentially arranged along the time domain direction.
In another optional scheme, when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering among the regions in the time domain resource unit whose transmission direction is the downlink transmission direction satisfies the following condition: the downlink control region, the time offset region, the data transmission region with the downlink data transmission direction, the GP region, and the uplink control region are sequentially arranged along the time domain direction.
In a specific implementation, optionally, if the terminal receives fifth indication information issued by the network device, it is determined that the time domain resource unit whose transmission direction is the downlink transmission direction includes the time offset region. And if the terminal does not receive the fifth indication information issued by the network equipment, determining that the time domain resource unit with the transmission direction being the downlink transmission direction does not include the time offset area. In the embodiment of the present invention, the number of consecutive symbols occupied by any one region in each time domain resource unit is an integer greater than or equal to zero. The structural form of each time domain resource unit in the specific multiple time domain resource unit sets can be used for the subsequent embodiment part.
Optionally, the downlink control region is used to carry downlink control information, such as scheduling information and resource allocation information sent by the network device. The GP zones are used for switching between downlink and uplink and avoiding downlink to uplink interference in the network. The data transmission region is used for transmitting uplink data. The uplink control region is used for transmitting uplink control information.
Based on the foregoing discussion, the following structures of each time domain resource unit in the following optional time domain resource unit sets are provided in the embodiments of the present invention, and it should be noted that the following structures provided in the embodiments of the present invention do not limit the embodiments of the present invention.
In the first case, the data transmission direction is an uplink transmission direction from the terminal to the network device. Several possible time domain resource unit set structures when the data transmission direction is the uplink transmission direction are introduced by the following manner a1, manner a2, manner a3, manner a4 and manner a 5.
In the manner a1, the number M of time domain resource units included in the aggregated time domain resource unit is 0. N is 1. Fig. 2d exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2d, the number M of time domain resource units included in an aggregated time domain resource unit is 0, and along a time domain direction, a time domain resource unit set includes a single time domain resource unit, which is referred to as a first type of time domain resource unit in fig. 2 d.
As can be seen from fig. 2d, the first type of time domain resource unit sequentially includes a downlink control (DLCtrl) region, a GP region, a Data transmission (UL Data) region with an uplink transmission direction, and an uplink control (UL Ctrl) region according to a time domain direction.
In the manner a2, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. N is also not 1. Fig. 2e exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2e, the number M of time domain resource units included in an aggregated time domain resource unit is not 0, and along a time domain direction, the time domain resource unit set includes one first type time domain resource unit in fig. 2d, and then includes M second type time domain resource units.
As can be seen from fig. 2e, the time domain resource units of the second type only include a data transmission (ULData) region with an uplink transmission direction.
In the manner a3, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Fig. 2f exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2f, the number M of time domain resource units included in an aggregated time domain resource unit is not 0, and along a time domain direction, the time domain resource unit set includes a third type of time domain resource unit, then includes (M-1) second type of time domain resource units, and then includes a fourth type of time domain resource unit.
As can be seen from fig. 2f, the third type of time domain resource unit sequentially includes a downlink control (DLCtrl) region, a GP region, and a Data transmission (UL Data) region with an uplink transmission direction in the time domain direction. The fourth type of time domain resource unit sequentially includes a Data transmission (UL Data) region and an uplink control (UL Ctrl) region in the uplink direction in the time domain direction.
In the manner a4, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Fig. 2g exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2g, the number M of time domain resource units included in an aggregated time domain resource unit is not 0, and along a time domain direction, the time domain resource unit set includes a third type of time domain resource unit and then includes M fourth type of time domain resource units.
In the manner a5, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Optionally, K time domain resource units are spaced between a time domain resource unit in which the downlink control region in the time domain resource unit set is located and another time domain resource unit in the time domain resource unit set, where the K time domain resource units are located in other time domain resource unit sets; k is greater than or equal to 1. Optionally, K in several figures of the above description of fig. 2d to 2g is 0, that is, in the mode a1 to the mode a4, the time domain resource unit in which the downlink control region is located in the time domain resource unit set is adjacent to at least one time domain resource unit in the time domain resource unit set, that is, the time domain resource units in other used resource unit sets are not spaced in the middle. Therefore, the terminal can determine the structure of each time domain resource unit in the resource unit set by K time domain resource units in advance, and convenience is provided for the terminal to send and receive data.
Fig. 2h exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, and as shown in fig. 2h, the pth time domain resource unit set includes a first type time domain resource unit and M fourth type time domain resource units. K time domain resource units between the first type of time domain resource unit and the M fourth type of time domain resource units do not belong to the P-th time domain resource unit. At this time, K is an integer greater than 0, and the downlink control region in the first type of time domain resource unit carries the indication information in the pth time domain resource unit set. The indication information may be any one or more of the first indication information, the second indication information, the third indication information, the fourth indication information and the fifth indication information in the above contents. Preferably, the indication information may be first indication information, second indication information, third indication information, fourth indication information, and fifth indication information. K time domain resource units are spaced between the first class of time domain resource unit and the fourth class of time domain resource unit sets, and the structure of each time domain resource unit in each time domain resource unit set is indicated by network equipment.
As shown in fig. 2h, the pth time domain resource unit set may include one time domain resource unit of the first type, one or more time domain resource units of the first type, and/or one or more time domain resource units of the third type. That is to say, the pth time domain resource unit set only needs to include at least one time domain resource unit having a downlink control region, and the indication information of the pth time domain resource unit set can be carried in the downlink control region of the pth time domain resource unit set. The indication information may be any one or more of the first indication information, the second indication information, the third indication information, the fourth indication information and the fifth indication information in the above contents. Preferably, the indication information may be first indication information, second indication information, third indication information, fourth indication information, and fifth indication information. The pth time domain resource unit set further includes M fourth class time domain resource units in fig. 2h, and in a specific embodiment, may include any type of time domain resource unit. In the embodiment of the invention, P is an integer which is greater than or equal to 1. M is an integer greater than or equal to 0.
In a second case, the data transmission direction is a downlink transmission direction from the network device to the terminal. Several possible time domain resource unit aggregation structures when the data transmission direction is the uplink transmission direction are introduced by the following manner b1, manner b2, manner b3 and manner b 4.
In the mode b1, the number M of time domain resource units included in the aggregated time domain resource unit is 0. Fig. 2i exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2i, the number M of time domain resource units included in an aggregated time domain resource unit is 0, and along a time domain direction, a time domain resource unit set includes a single time domain resource unit, which is referred to as a fifth type of time domain resource unit in fig. 2 i.
As can be seen from fig. 2i, the fifth type of time domain resource unit sequentially includes a downlink control (DLCtrl) region, a Data transmission (DL Data) region with a downlink transmission direction, a GP region, and an uplink control (UL Ctrl) region in the time domain direction.
In the mode b2, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Fig. 2j exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2j, the number M of time domain resource units included in an aggregated time domain resource unit is not 0, and along a time domain direction, the time domain resource unit set includes a sixth type of time domain resource unit, then includes (M-1) seventh type of time domain resource units, and then includes an eighth type of time domain resource unit.
As can be seen from fig. 2j, the sixth type of time domain resource unit sequentially includes a downlink control (DLCtrl) region and a Data transmission (DL Data) region in a downlink direction according to the time domain direction. The seventh type of time domain resource unit only includes a Data transmission (DL Data) region with a downlink transmission direction, and the eighth type of time domain resource unit sequentially includes a Data transmission (DL Data) region with a downlink transmission direction, a GP region, and an uplink control (UL Ctrl) region in the time domain direction.
In the mode b3, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Fig. 2k exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2k, the number M of time domain resource units included in an aggregated time domain resource unit is not 0, and along a time domain direction, the time domain resource unit set includes M +1 sixth type time domain resource units, and then includes a fifth type time domain resource unit.
In the mode b4, the number M of time domain resource units included in the aggregated time domain resource unit is not 0. Fig. 2l exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2l, a pth time domain resource unit set includes a fifth type of time domain resource unit and M eighth type of time domain resource units, and a downlink control region in the fifth type of time domain resource unit carries common control information in the pth time domain resource unit set. K time domain resource units are arranged between the fifth type of time domain resource unit and the M eighth type of time domain resource units at intervals, and the structure of each time domain resource unit in each time domain resource unit set is indicated by network equipment. K is an integer greater than 0.
As shown in fig. 2l, the pth time domain resource unit set may include one time domain resource unit of the fifth type and M time domain resource units of the eighth type. In this example, the location of the fifth type of time domain resource unit in the pth time domain resource unit set may also include one or more fifth type of time domain resource units and/or one or more sixth type of time domain resource units. That is to say, the pth time domain resource unit set only needs to include at least one time domain resource unit having a downlink control region, and the indication information of the structure of the pth time domain resource unit set can be carried in the downlink control region of the pth time domain resource unit set. The indication information may be any one or more of the first indication information, the second indication information, the third indication information, the fourth indication information and the fifth indication information in the above contents. Preferably, the indication information may be first indication information, second indication information, third indication information, fourth indication information, and fifth indication information. The P-th time domain resource unit set includes M eighth type time domain resource units, which are taken as an example in this embodiment, and in practical application, any type of time domain resource unit may be included. In the embodiment shown in FIG. 2l, P is an integer greater than or equal to 2 and M is an integer greater than or equal to 1.
In a third case, the data transmission direction is a downlink transmission direction from the network device to the terminal. This case applies to the dynamic sensing (sensing) scenario in which there is an associated process of sending and receiving measurement signals, and therefore a time offset (offset) area is added between the downlink control (DL Ctrl) area and the downlink Data (DL Data) area in this scenario, and this area is used to transmit some information of the dynamic sensing (sensing) scenario. In particular dynamic sensing (sensing) scenarios, there are various, such as cross interference measurements of network devices and terminals, alternatively time offset (offset) regions may be used to send or receive measurement signals. Several possible time domain resource unit set structures when the data transmission direction is the uplink transmission direction are introduced by the following modes c1, c2 and c 3.
In the manner c1, the number M of time domain resource units included in the aggregated time domain resource unit is 0. Fig. 2M exemplarily shows a schematic diagram of a time domain resource unit set structure provided by an embodiment of the present invention, as shown in fig. 2M, the number M of time domain resource units included in an aggregated time domain resource unit is 0, and along the time domain direction, the structure of each time domain resource unit in the time domain resource unit set is that a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in fig. 2 i.
In the manner c2, the number M of time domain resource units included in the aggregated time domain resource unit is not 0, and fig. 2n exemplarily shows a schematic diagram of a time domain resource unit set structure provided in the embodiment of the present invention, as shown in fig. 2n, along the time domain direction, the structure of each time domain resource unit in the time domain resource unit set is that a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in fig. 2 j.
In the manner c3, the number M of time domain resource units included in the aggregated time domain resource unit is not 0, and fig. 2o exemplarily shows a schematic diagram of a time domain resource unit set structure provided in the embodiment of the present invention, as shown in fig. 2o, along the time domain direction, the structure of each time domain resource unit in the time domain resource unit set is that a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in fig. 2 k.
In the foregoing scheme in the embodiment of the present invention, the network device and the terminal may stipulate that the total number of symbols of each time domain resource unit is the same, so for a time domain resource unit including Q regions, the terminal only needs to determine the number of symbols occupied by Q-1 regions in the time domain resource unit through the instruction information issued by the network device or stipulated in advance, and then the terminal may calculate the number of symbols occupied by the remaining region in the time domain resource unit, where Q is an integer greater than 1.
For example, in fig. 2j, the network device and the terminal agree that the ordering of each region is to arrange the sixth type of time domain resource units along the time domain direction, arrange M-1 seventh type of time domain resource units in the middle, and arrange an eighth type of time domain resource unit at last, and then the common control information sent by the network device to the terminal includes: the number of symbols continuously occupied by the downlink control region in the sixth type of time domain resource unit, the number of symbols continuously occupied by the uplink control region in the eighth type of time domain resource unit, and the value of M; optionally, the network device further notifies the terminal of the number of symbols continuously occupied by the data transmission region in the eighth type of time domain resource unit. The terminal determines that the time domain resource unit structure is as shown in fig. 2j according to the received number of symbols continuously occupied by the downlink control region in the sixth type of time domain resource unit, the number of symbols continuously occupied by the uplink control region in the eighth type of time domain resource unit, the value of M, and the number of symbols continuously occupied by the data transmission region issued by the network device. The terminal can determine the number of the symbols occupied by the data transmission area in the sixth type time domain resource unit, the seventh type time domain resource unit and the eighth type time domain resource unit according to the total number of the symbols occupied by each time domain resource unit.
In a fourth case, the time domain resource unit set includes both an uplink data transmission region and a downlink data region. At this time, the value of K is divided into two cases of being equal to zero and being greater than zero. The aggregate time domain resource unit may be included in front of the K time domain resource units, and the aggregate time domain resource unit may also be included behind the K time domain resource units. Fig. 2p, fig. 2q and fig. 2r respectively show structural diagrams of several possible time domain resource unit sets.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction; k time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the time domain resource unit set, wherein the K time domain resource units are positioned in other time domain resource unit sets; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
As shown in fig. 2P, the pth time domain resource unit set includes a first type time domain resource unit and an eighth type time domain resource unit, and the downlink control region in the first type time domain resource unit carries the common control information in the pth time domain resource unit set. K time domain resource units are spaced between the first class of time domain resource units and the eighth class of time domain resource units, and the structure of each time domain resource unit in each time domain resource unit set is indicated by network equipment. K may be equal to 0 or an integer greater than 0.
As shown in FIG. 2q, the P-th time domain resource unit set includes M1+1 time domain resource units of the first type and M2And the downlink control region in the first type of time domain resource unit carries the common control information in the P-th time domain resource unit set. M1M of +1 time domain resource units of the first type except for the first time domain resource unit of the first type1Each time domain resource unit is called a first aggregation time domain resource unit; m2An eighth type of time domain resource unit is referred to as a second aggregation time domain resource unit. The first group of time domain resource units is M in FIG. 2q1+1 time domain resource units of the first type; another set of time domain resourcesThe unit is M in FIG. 2q2An eighth type of time domain resource unit.
K time domain resource units are spaced between the first class of time domain resource units and the eighth class of time domain resource units, and the structure of each time domain resource unit in each time domain resource unit set is indicated by network equipment. K may be equal to 0 or an integer greater than 0.
Optionally, network device indication K, M1And M2The terminal can determine the positions of the K time domain resource units in a calculation manner, and the positions of the K time domain resource units start from M1+1 time domain resource units.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit and a data transmission direction of the time domain resource unit in which the first indication information is located through a sixth manner; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Since the data transmission direction of each time domain resource unit in the first aggregated time domain resource unit is consistent with the data transmission direction of the time domain resource unit in which the first indication information is located, when the current terminal determines the data transmission direction of the time domain resource unit in which the first indication information is located, the data transmission direction of each time domain resource unit in the first aggregated time domain resource unit is determined.
Optionally, the network device indicates, to the terminal through a second manner, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit of the first aggregated time domain resource unit, where the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit are the same; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource units in a third manner; wherein the third mode is as follows: indicating a transmission direction of one of the second aggregated time domain resource units. Since the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit is the same, the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit can be indicated by only indicating the transmission direction of one time domain resource unit in the second aggregation time domain resource unit, that is, the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit can be indicated by only using one data transmission direction indication field.
Optionally, the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, and a number of consecutive symbols occupied by the downlink control region, a number of consecutive symbols occupied by the uplink control region, and a number of consecutive symbols occupied by the data transmission region in each time domain resource unit through a fourth manner; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, and the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
That is to say, in the embodiment of the present invention, the network device may indicate M in the second aggregation time domain resource unit through one data transmission direction indication field2The data transmission direction of each time domain resource unit; indicating M in a first aggregated time domain resource unit by a structure indication field1A structure of time domain resource units; the second aggregation may be indicated by a configuration indication fieldM in domain resource unit2The structure of the time domain resource unit reduces the signaling overhead of the indication information.
In fig. 2r, where K is 0, the data transmission directions of two time domain resource units in one time domain resource unit set may be different.
In a fifth situation, in the embodiment of the present invention, the structure forms of several time domain resource unit sets are preset between the network device and the terminal, and a corresponding structure form index value is set for each structure form of the time domain resource unit set, so that when the terminal receives the structure form index value sent by the network device, the structure form of the time domain resource unit set corresponding to the structure form index value can be determined.
Optionally, the first indication information is used to indicate: the number N of time domain resource units included in the time domain resource unit set; a structural form index value of the set of time domain resource units; and the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit. The time domain resource units comprise a third group of time domain resource units and/or a fourth group of time domain resource units. In this embodiment of the present invention, the third group of time domain resource units includes at least two time domain resource units, and the transmission direction of each time domain resource unit included in the third group of time domain resource units is the same as the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region. Optionally, the third set of time domain resource units comprises consecutive time domain resource units. And the fourth group of time domain resource units are the time domain resource units in the time domain resource unit set except the third group of time domain resource units. This scheme reduces the signaling overhead of the indication information.
In the scheme, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit are indicated by the following methods:
for each time domain resource unit in the third group of time domain resource units, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of each time domain resource unit in the third group of time domain resource units can be indicated in a manner of only indicating the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region and the number of consecutive symbols occupied by the data transmission region of one time domain resource unit in the third group of time domain resource units, thereby reducing signaling overhead of indicating information of the third group of time domain resource units;
and for each time domain resource unit in the fourth group of time domain resource units, indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region of each time domain resource unit in the fourth group of time domain resource units.
The structural form of the time domain resource unit set in the embodiment of the invention comprises the time domain resource unit type in the time domain resource unit, the data transmission direction of the time domain resource unit and the sequencing of the time domain resource unit. In the embodiment of the present invention, the index value of the structural form of the time domain resource unit set may indicate the type of the time domain resource unit, the data transmission direction of the time domain resource unit, and the sequence of the time domain resource unit included in the time domain resource unit set; and the number of each type of time domain resource unit can be indicated by combining the number N of the time domain resource units. In the embodiment of the present invention, a correspondence between the structural form of the time domain resource unit set and the structural form index value of the time domain resource unit set may be predefined.
Further, the structural form of the time domain resource unit set in the embodiment of the present invention further includes the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is to say, the structural form index value of the time domain resource unit set may also indicate the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each type of time domain resource unit included in the time domain resource unit set. That is, in the embodiment of the present invention, the structural form of the time domain resource unit is defined by the structural form index value, and the number of symbols of each region included in each time domain resource unit is also predefined, so that the first indication information includes the number N of time domain resource units included in the time domain resource unit set and the structural form index value of the time domain resource unit set, thereby reducing the instruction overhead of the first indication information.
For example, the structure format index value of fig. 2e is 001, the structure format index value of fig. 2f is 002, the structure format index value of fig. 2g is 003, the structure format index value of fig. 2j is 004, the structure format index value of fig. 2k is 005, and the structure format index value of fig. 2m is 006.
As shown in fig. 2e, when the network device indicates that the index value of the structural form of the time domain resource unit set is 001, and the network device indicates a value of N to the terminal, the terminal may determine that the structure of the time domain resource unit set is formed by one time domain resource unit of the first type and time domain resource units of the N-1 second type, and determine the data transmission direction of each time domain resource unit, as shown in fig. 2 e. The third group of time domain resource units comprises the N-1 second type of time domain resource units, and the fourth group of time domain resource units comprises the first type of time domain resource units. The first indication information sent by the network device only includes the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in the first type of time domain resource unit, except that the value of N and the index value of the structural form are 001. The terminal can determine the structural form of each time domain resource unit in the N-1 second type time domain resource units, the structural form of the first type time domain resource unit and the data transmission direction of each time domain resource unit according to the information, so that the signaling overhead of the first indication information is greatly reduced.
Optionally, the common control information in the embodiment of the present invention is carried in any one or several of the following channels: a dedicated control channel; performing resource allocation control channel in a static or semi-static mode; a physical downlink control channel. Therefore, in the embodiment of the invention, a plurality of bearing modes bear the common control information, thereby improving the flexibility of the bearing mode of the common control information. Alternatively, the dedicated control channel may be a specially defined, new one that may be used to carry common control information in embodiments of the present invention. Optionally, the common control information in the embodiment of the present invention may perform resource allocation on the control channel in some static or semi-static manners, or may perform resource allocation on the control channel in some dynamic manners. Optionally, some Downlink Control channels may also carry common Control information, such as a Physical Downlink Control Channel (for example, a Physical Downlink Control Channel, PDCCH for short in the LTE protocol) or an enhanced Physical Downlink Control Channel (for example, ePDCCH for short in the LTE protocol). Optionally, in the embodiment of the present invention, the common control information may be carried through a channel for carrying L1/L2 control signaling (Layer 1/Layer 2control signaling).
In this embodiment of the present invention, optionally, multiple channels may be mapped on each symbol, taking PDCCH as an example, the Search Space of which includes a Common Search Space (Common Search Space) and a Terminal-specific Search Space (Terminal-specific Search Space), and control information that is the same for all terminals in one cell may be mapped in the Common Search Space (Common Search Space), that is, the Common control information in this embodiment of the present invention may be mapped in the Common Search Space (Common Search Space). For the Terminal, the Terminal-Specific information may be mapped in a Terminal-Specific Search Space (Terminal-Specific Search Space), that is, the Terminal-Specific control information in the embodiment of the present invention may be mapped in the Terminal-Specific Search Space (Terminal-Specific Search Space).
In the embodiment of the present invention, since two pieces of parameter information, i.e., the size of the downlink control region and the data transmission direction (uplink or downlink), have a key role in determining the structure of each time domain resource unit in the time domain resource unit set, in an optional implementation manner, the common control information or the terminal-specific control information including the data transmission direction may be mapped on a symbol that is more ahead in the time domain resource unit set, for example, a first symbol in the downlink control region.
In the embodiment of the present invention, the common control information may be transmitted in a plurality of transmission manners, for example, in the DCIformat 1C described in the above. Or by means of the transmission described in the following manner d1, manner d2 or manner d 3.
Mode d1, the common control information may be carried by a new indicator channel for the channel carrying the L1/L2 control signaling. The new indicator channel may be configured in a static manner or a semi-static manner. The static mode or semi-static mode configuration means that the time frequency resource of the indication channel is configured in a static mode or a semi-static mode. Optionally, the time frequency resource configured in the static manner refers to a fixed time frequency resource, such as a time frequency resource of a Physical Control frame Format Indicator Channel (PCFICH for short); the semi-static configuration of the time frequency resources means that the time frequency resources are configured through system information, RRC signaling and the like.
Taking the first indication information as an example, the physical layer processing procedure of the new indication channel is to perform channel coding on bits of the first indication information, and perform scrambling, modulation, and time-frequency resource mapping in sequence to obtain the first indication information.
In the mode d2, the common control information may be carried after being enhanced by an existing static mode or semi-static configuration channel (such as PCFICH in LTE). The term "channel enhanced" means that information bits that need to be dynamically transmitted are added to the original channel.
Taking the first indication information as an example, the physical layer processing procedure after channel enhancement is to perform channel coding on bits of the first indication information and original information bits of the PCFICH, and perform scrambling, modulation, and time-frequency resource mapping in sequence to obtain the first indication information.
In the manner d3, the common control information may be carried using a corresponding downlink control channel, for example, the common control information is carried by common downlink control information (e.g., DCI format 1C in LTE), and the common control information may be carried using PDCCH/EPDCCH in LTE.
Optionally, some predefined identity scrambling, such as X-RNTI, may be added to the common downlink control information. Taking the first indication information as an example, the predefined identifier may be used to identify whether the public downlink control information carries the first indication information, that is, if the public downlink control information includes the predefined identifier, the public downlink control information carries the first indication information, and vice versa.
Taking the first indication information as an example, the physical layer processing flow of the downlink control channel is to perform Cyclic Redundancy Check (CRC) on bits of the first indication information, add a predefined identifier X-RNTI, and then perform channel coding, rate matching, scrambling, modulation, precoding, and time-frequency resource mapping in sequence to obtain the first indication information.
Taking the first indication information as an example, an embodiment of the present invention provides another optional physical processing procedure, where Cyclic Redundancy Check (CRC) is performed on bits of the first indication information, a predefined identifier X-RNTI is added, and then channel coding, rate matching, PDCCH multiplexing, scrambling, modulation, interleaving, and cell specific Cyclic shift are sequentially performed to obtain the first indication information.
Based on the same conception, fig. 3 exemplarily shows a schematic structural diagram of a network device for a time domain resource unit set structure provided in an embodiment of the present invention, where the network device for the time domain resource unit set structure is configured to perform the above method embodiment, and is adapted to the time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1. As shown in fig. 3, the network device 300 for time domain resource unit aggregation structure includes a processing unit 301 and a transmitting unit 302, wherein:
the processing unit is used for generating first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in each time domain resource unit in the time domain resource unit set, the total number of symbols contained in the time domain resource units, and the data transmission direction of each time domain resource unit; a sending unit, configured to send the first indication information to a terminal through common control information or terminal-specific control information in the time domain resource unit set; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; wherein M is an integer greater than or equal to 0 and less than or equal to N-1; the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit.
Optionally, the processing unit is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the aggregated time domain resource unit and a data transmission direction of a time domain resource unit in which the first indication information is located through a fifth manner; wherein the fifth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processing unit is configured to indicate, to the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the aggregated time domain resource unit in a first manner; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
Optionally, the processing unit is further configured to generate second indication information; wherein the second indication information is used for indicating the number of consecutive symbols occupied by a guard interval GP region in the time domain resource unit set. Optionally, the sending unit is further configured to send the second indication information to the terminal through the common control information or the terminal specific control information.
Optionally, the processing unit is further configured to generate third indication information; wherein the third indication information is used to indicate a time length corresponding to one symbol in the time domain resource unit set. Optionally, the sending unit is further configured to send the third indication information to the terminal through the common control information or the terminal-specific control information. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the processing unit is further configured to generate fourth indication information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; the sending unit is further configured to send the fourth indication information to the terminal through the common control information or the terminal specific control information. Therefore, the network equipment can flexibly determine the data transmission direction of each time domain resource unit set, and the flexibility of data uplink and downlink transmission is improved.
Optionally, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the processing unit is further configured to generate fifth indication information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; the sending unit is further configured to send the fifth indication information to the terminal through the common control information or the terminal specific control information. This case applies to a dynamic sensing (sensing) scenario in which there is an associated process of sending and receiving measurement signals, and thus a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in this scenario.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, K time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the set of time domain resource units, where the K time domain resource units are located in other sets of time domain resource units; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
Optionally, the processing unit is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit and a data transmission direction of a time domain resource unit in which the first indication information is located through a sixth manner; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processing unit is configured to indicate, to the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit through a second manner; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the processing unit is configured to indicate the M to the terminal through a third manner2A data transmission direction of each time domain resource unit in the first aggregated time domain resource units; wherein the third mode is as follows: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource units.
Optionally, the processing unit is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, and a number of consecutive symbols occupied by a downlink control region, a number of consecutive symbols occupied by an uplink control region, and a number of consecutive symbols occupied by a data transmission region in each time domain resource unit through a fourth manner; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink and the middle control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
Optionally, some other features in the embodiment of the present invention are the same as those in the embodiment of the method described above, and reference may be made to the discussion of the embodiment of the method described above, which is not repeated herein.
Based on the same conception, fig. 4 exemplarily shows a schematic structural diagram of a terminal for a time domain resource unit set structure provided in an embodiment of the present invention, where the terminal for a time domain resource unit set structure is used to execute the above method embodiment, and is applicable to the time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1. As shown in fig. 4, the terminal 400 for time domain resource unit set structure includes a processing unit 401 and a receiving unit 402, where:
a receiving unit, configured to receive first indication information sent by a network device through common control information or terminal-specific control information in the time domain resource unit set; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; a processing unit, configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set and the first indication information; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
In the embodiment of the present invention, the time domain resource unit set includes N time domain resource units, the data transmission directions of the N time domain resource units are the same, N is an integer greater than or equal to 1, and the network device indicates the structure of only one time domain resource unit for the terminal at a time, which is equivalent to the subframe level in the prior art, that is, the method provided in the embodiment of the present invention is equivalent to the structure indicating each time domain resource unit in each time domain resource unit set by the subframe level in the prior art, so that the network device can flexibly allocate the data transmission direction of each time domain resource unit without being restricted by seven fixed uplink and downlink transmission resource ratios in the prior art, thereby improving flexibility and being more suitable for a changeable service environment.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; wherein M is an integer greater than or equal to 0 and less than or equal to N-1; the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit.
Optionally, the processing unit is configured to determine, by a fifth manner, a data transmission direction of each time domain resource unit in the aggregated time domain resource unit indicated by the network device and a data transmission direction of a time domain resource unit in which the first indication information is located; wherein the fifth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processing unit is configured to determine, by a first method, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the aggregated time domain resource unit, where the number is indicated by the network device; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
Optionally, the receiving unit is further configured to receive the second indication information sent by the network device through the common control information or the terminal-specific control information; wherein the second indication information is used for indicating the number of consecutive symbols occupied by a guard interval GP region in the time domain resource unit set.
Optionally, the receiving unit is further configured to receive the third indication information sent by the network device through the common control information or the terminal-specific control information; wherein the third indication information is used to indicate a time length corresponding to one symbol in the time domain resource unit set. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the receiving unit is further configured to receive the fourth indication information sent by the network device through the common control information or the terminal-specific control information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; the processing unit is configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set, the first indication information, and the fourth indication information.
Optionally, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the receiving unit is further configured to receive the fifth indication information sent by the network device through the common control information or the terminal-specific control information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; the processing unit is configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among the regions in each time domain resource unit of the time domain resource unit set, the first indication information, and the fifth indication information. This case applies to a dynamic sensing (sensing) scenario in which there is an associated process of sending and receiving measurement signals, and thus a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in this scenario.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, K time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the set of time domain resource units, where the K time domain resource units are located in other sets of time domain resource units; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
Optionally, the processing unit is configured to determine, by the terminal, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit indicated by the network device and a data transmission direction of a time domain resource unit in which the first indication information is located through a sixth manner; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processing unit is configured to determine, by the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit, which are indicated by the network device, through a second manner; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the processing unit is configured to determine, by the terminal, the M indicated by the network device through a third method2A data transmission direction of each time domain resource unit in the first aggregated time domain resource units; wherein the third mode is as follows: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource units.
Optionally, the processing unit is configured to determine, by the terminal, the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region, which are indicated by the network device, through a fourth method; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
Optionally, some other features in the embodiment of the present invention are the same as those in the embodiment of the method described above, and reference may be made to the discussion of the embodiment of the method described above, which is not repeated herein.
Based on the same conception, fig. 5 exemplarily shows a schematic structural diagram of another network device for a time domain resource unit set structure provided in the embodiment of the present invention, where the network device for the time domain resource unit set structure is configured to perform the above method embodiment, and is adapted to the time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1. As shown in fig. 5, the network device 500 for time domain resource unit aggregation structure includes a processor 501 and a transceiver 505, and optionally further includes a memory 502 and a communication interface 503, wherein the processor 501, the memory 502, the communication interface 503 and the transceiver 505 are connected to each other through a bus 504; the memory may be integrated in the processor or may be independent of the processor.
The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus.
The memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory 502 may also comprise a combination of memories of the kind described above.
The communication interface may be a wired communication access port, a wireless communication interface, or a combination thereof, wherein the wired communication interface may be, for example, an ethernet interface. The ethernet interface may be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface may be a WLAN interface.
The processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.
The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
A processor for generating first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; a transceiver, configured to send the first indication information to a terminal through common control information or terminal-specific control information in the time domain resource unit set;
the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; wherein M is an integer greater than or equal to 0 and less than or equal to N-1; the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit.
Optionally, the processor is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the aggregated time domain resource unit and a data transmission direction of a time domain resource unit in which the first indication information is located through a fifth manner; wherein the fifth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processor is configured to indicate, to the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the aggregated time domain resource unit in a first manner; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
Optionally, the memory may also be used for storing program instructions, and the processor calls the program instructions stored in the memory, and may execute the scheme in the above method embodiment, such as the scheme shown in fig. 2.
Optionally, the processor is further configured to generate second indication information; wherein the second indication information is used for indicating the number of consecutive symbols occupied by a guard interval GP region in the time domain resource unit set. Optionally, the transceiver is further configured to send the second indication information to the terminal through the common control information or the terminal-specific control information.
Optionally, the processor is further configured to generate third indication information; wherein the third indication information is used to indicate a time length corresponding to one symbol in the time domain resource unit set. Optionally, the transceiver is further configured to send the third indication information to the terminal through the common control information or the terminal-specific control information. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the processor is further configured to generate fourth indication information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; the transceiver is further configured to send the fourth indication information to the terminal through the common control information or the terminal-specific control information.
Optionally, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the processor is further configured to generate fifth indication information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; the transceiver is further configured to send the fifth indication information to the terminal through the common control information or the terminal-specific control information. This case applies to a dynamic sensing (sensing) scenario in which there is an associated process of sending and receiving measurement signals, and thus a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in this scenario.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, K time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the set of time domain resource units, where the K time domain resource units are located in other sets of time domain resource units; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
Optionally, the processor is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit and a data transmission direction of a time domain resource unit in which the first indication information is located through a sixth manner; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processor is configured to indicate, to the terminal, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit through a second manner; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the processor is configured to indicate the M to the terminal through a third manner2A data transmission direction of each time domain resource unit in the first aggregated time domain resource units; wherein the third mode is as follows: indicating a data transmission direction of one of the second aggregated time domain resource units;
optionally, the processor is configured to indicate, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, and a number of consecutive symbols occupied by a downlink control region, a number of consecutive symbols occupied by an uplink control region, and a number of consecutive symbols occupied by a data transmission region in each time domain resource unit through a fourth manner; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
Optionally, some other features in the embodiment of the present invention are the same as those in the embodiment of the method described above, and reference may be made to the discussion of the embodiment of the method described above, which is not repeated herein.
Based on the same concept, fig. 6 exemplarily shows a schematic structural diagram of another terminal for a time domain resource unit set structure provided in an embodiment of the present invention, where the terminal for a time domain resource unit set structure is used to execute the above method embodiment and is applicable to the time domain resource unit set including N time domain resource units; n is an integer greater than or equal to 1. As shown in fig. 6, the network device 600 for time domain resource unit aggregation structure includes a processor 601 and a transceiver 605, and optionally further includes a memory 602 and a communication interface 603, where the processor 601, the memory 602, the communication interface 603, and the transceiver 605 are connected to each other through a bus 604;
the bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
The memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory 502 may also comprise a combination of memories of the kind described above.
The communication interface may be a wired communication access port, a wireless communication interface, or a combination thereof, wherein the wired communication interface may be, for example, an ethernet interface. The ethernet interface may be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface may be a WLAN interface.
The processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.
The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
A processor for generating first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; a transceiver, configured to send the first indication information to a terminal through common control information or terminal-specific control information in the time domain resource unit set;
the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Optionally, the memory may also be used for storing program instructions, and the processor calls the program instructions stored in the memory, and may execute the scheme in the above method embodiment, such as the scheme shown in fig. 2.
Optionally, the time domain resource unit set includes an aggregation time domain resource unit, where the aggregation time domain resource unit is continuous with the first time domain resource unit and has the same data transmission direction; wherein M is an integer greater than or equal to 0 and less than or equal to N-1; the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit.
Optionally, the processor is configured to determine, by a fifth manner, a data transmission direction of each time domain resource unit in the aggregated time domain resource unit indicated by the network device and a data transmission direction of a time domain resource unit in which the first indication information is located; wherein the fifth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processor is configured to determine, by a first method, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the aggregated time domain resource unit, where the number is indicated by the network device; wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
A transceiver, configured to receive first indication information sent by a network device through common control information or terminal-specific control information in the time domain resource unit set; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set; a processor, configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among regions in each time domain resource unit of the time domain resource unit set and the first indication information; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
Optionally, the transceiver is further configured to receive the second indication information sent by the network device through the common control information or the terminal-specific control information; wherein the second indication information is used for indicating the number of consecutive symbols occupied by a guard interval GP region in the time domain resource unit set.
Optionally, the transceiver is further configured to receive the third indication information sent by the network device through the common control information or the terminal-specific control information; wherein the third indication information is used to indicate a time length corresponding to one symbol in the time domain resource unit set. Therefore, the scheme provided by the embodiment of the invention can also flexibly determine the length of the time occupied by each symbol, and further improves the flexibility of the structure of each time domain resource unit in the time domain resource unit set.
Optionally, the transceiver is further configured to receive the fourth indication information sent by the network device through the common control information or the terminal-specific control information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units; the processor is configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among regions in each time domain resource unit of the time domain resource unit set, the first indication information, and the fourth indication information.
Optionally, when the data transmission direction of at least one time domain resource unit in the N time domain resource units is a downlink transmission direction from the network device to the terminal, the transceiver is further configured to receive the fifth indication information sent by the network device through the common control information or the terminal-specific control information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink; the time offset region is used for carrying out cross interference measurement; the processor is configured to determine a structure of each time domain resource unit in the time domain resource unit set at least according to a predetermined ordering among regions in each time domain resource unit of the time domain resource unit set, the first indication information, and the fifth indication information. This case applies to a dynamic sensing (sensing) scenario in which there is an associated process of sending and receiving measurement signals, and thus a time offset (offset) region is added between a downlink control (DL Ctrl) region and a downlink Data (DL Data) region in this scenario.
Optionally, the time domain resource unit set includes a first group of time domain resource units, where the first group of time domain resource units includes the first time domain resource unit and a first aggregated time domain resource unit, and the first aggregated time domain resource unit is consecutive to the first time domain resource unit and has the same data transmission direction. Optionally, K time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the set of time domain resource units, where the K time domain resource units are located in other sets of time domain resource units; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
Optionally, the first indication information is further used to indicate the number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0. Optionally, the another set of time domain resource units includes a second aggregation time domain resource unit, and the first indication information is further used to indicate the number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
Optionally, the processor is configured to determine, by a sixth manner, a data transmission direction of each time domain resource unit in the first aggregated time domain resource unit indicated by the network device and a data transmission direction of a time domain resource unit in which the first indication information is located; wherein the sixth mode is: and indicating the data transmission direction of the time domain resource unit in which the first indication information is located.
Optionally, the processor is configured to determine, by a second manner, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit, where the number is indicated by the network device; wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
Optionally, the processor is configured to determine the network device indication through a third methodOut of the M2A data transmission direction of each time domain resource unit in the first aggregated time domain resource units; wherein the third mode is as follows: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource units.
Optionally, the processor is configured to determine, by a fourth manner, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit indicated by the network device, and a number of consecutive symbols occupied by a downlink control region, a number of consecutive symbols occupied by an uplink control region, and a number of consecutive symbols occupied by a data transmission region in each time domain resource unit; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
Optionally, some other features in the embodiment of the present invention are the same as those in the embodiment of the method described above, and reference may be made to the discussion of the embodiment of the method described above, which is not repeated herein.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (30)

1. A method for determining a time domain resource unit set structure is characterized in that the time domain resource unit set comprises N time domain resource units; n is an integer greater than or equal to 1; the method comprises the following steps:
the network equipment generates first indication information; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set;
the network equipment sends the first indication information to a terminal through common control information or terminal specific control information in the time domain resource unit set; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
2. The method of claim 1, wherein the set of time domain resource units comprises an aggregated time domain resource unit that is contiguous with the first time domain resource unit and has a same data transmission direction; the first indication information is further used for indicating the number M of time domain resource units in the aggregated time domain resource unit; m is an integer greater than or equal to 0 and less than or equal to N-1;
the network equipment indicates the number of continuous symbols occupied by a downlink control area, the number of continuous symbols occupied by an uplink control area and the number of continuous symbols occupied by a data transmission area in each time domain resource unit in the aggregated time domain resource unit to the terminal in a first mode;
wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
3. The method of claim 1 or 2, further comprising:
the network equipment generates second indication information; wherein, the second indication information is used for indicating the number of continuous symbols occupied by a guard interval GP region in the time domain resource unit set;
and the network equipment sends the second indication information to the terminal through the common control information or the terminal specific control information.
4. The method of claim 1 or 2, further comprising:
the network equipment generates third indication information; wherein, the third indication information is used for indicating a time length corresponding to one symbol in the time domain resource unit set;
and the network equipment sends the third indication information to the terminal through the common control information or the terminal specific control information.
5. The method of claim 1 or 2, further comprising:
the network equipment generates fourth indication information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units;
and the network equipment sends the fourth indication information to the terminal through the common control information or the terminal specific control information.
6. The method according to claim 1 or 2, wherein when the data transmission direction in which at least one time domain resource unit exists in the N time domain resource units is a downlink transmission direction from the network device to the terminal, further comprising:
the network equipment generates fifth indication information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink;
and the network equipment sends the fifth indication information to the terminal through the common control information or the terminal specific control information.
7. The method of claim 1, wherein the set of time domain resource units comprises a first group of time domain resource units comprising the first time domain resource unit and a first aggregated time domain resource unit, the first aggregated time domain resource unit being consecutive to the first time domain resource unit and having a same data transmission direction;
k time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the time domain resource unit set, wherein the K time domain resource units are positioned in other time domain resource unit sets; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
8. The method of claim 7, wherein the first indication information is further for indicating a number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0.
9. The method of claim 8, wherein the other set of time domain resource units comprises a second aggregation time domain resource unit, and wherein the first indication information is further used for indicating a number M of time domain resource units included in the second aggregation time domain resource unit2，M2Is an integer greater than or equal to 0.
10. The method according to any one of claims 7 to 9, wherein the network device indicates, to the terminal through a second manner, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit;
wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
11. The method of claim 9, wherein the network device indicates to the terminal a data transmission direction of each of the second aggregated time domain resource units by a third manner; wherein the third mode is as follows: indicating a transmission direction of one of the second aggregated time domain resource units;
or;
the network device indicates, to the terminal, a data transmission direction of each time domain resource unit in the second aggregation time domain resource unit, and the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in a fourth manner; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, and the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
12. The method according to claim 1 or 2, wherein the common control information is carried in any one of the following channels:
a dedicated control channel;
performing resource allocation control channel in a static or semi-static mode;
a physical downlink control channel.
13. The method according to claim 1 or 2, wherein when the data transmission direction is an uplink transmission direction transmitted from the terminal to the network device, the ordering between the respective regions in the time domain resource unit with the uplink transmission direction satisfies the following condition:
and the downlink control region, the GP region, the data transmission region with the data transmission direction being uplink, and the uplink control region are sequentially arranged along the time domain direction.
14. The method according to claim 1 or 2, wherein when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering between the respective regions in the time domain resource unit with the downlink transmission direction satisfies the following condition:
the downlink control region, the data transmission region with the downlink data transmission direction, the GP region and the uplink control region are sequentially arranged along the time domain direction;
or;
the downlink control region, the time offset region, the data transmission region with the downlink data transmission direction, the GP region, and the uplink control region are sequentially arranged along the time domain direction.
15. A method for determining a time domain resource unit set structure is characterized in that the time domain resource unit set comprises N time domain resource units; n is an integer greater than or equal to 1; the method comprises the following steps:
the terminal receives first indication information sent by the network equipment through the common control information or the terminal specific control information in the time domain resource unit set; the first indication information is used for indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region, the number of continuous symbols occupied by the data transmission region and the data transmission direction of each time domain resource unit in the time domain resource unit set;
the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information; the common control information and the terminal specific control information are carried on continuous symbols occupied by the downlink control region of the first time domain resource unit of the time domain resource unit set.
16. The method of claim 15, wherein the set of time domain resource units includes an aggregated time domain resource unit that is contiguous with the first time domain resource unit and has a same data transmission direction; wherein the first indication information is further used for indicating the number M of time domain resource units included in the aggregated time domain resource unit; m is an integer greater than or equal to 0 and less than or equal to N-1;
the terminal determines the number of continuous symbols occupied by a downlink control area, the number of continuous symbols occupied by an uplink control area and the number of continuous symbols occupied by a data transmission area in each time domain resource unit in the aggregated time domain resource unit, which are indicated by the network equipment, through a first mode;
wherein the first mode is as follows: and indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the aggregated time domain resource unit.
17. The method as claimed in claim 15 or 16, wherein before the terminal determines the structure of each time domain resource unit in the time domain resource unit set according to at least the pre-agreed ordering between the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the method further comprises:
the terminal receives second indication information sent by the network equipment through the common control information or the terminal specific control information; wherein, the second indication information is used for indicating the number of continuous symbols occupied by a guard interval GP region in the time domain resource unit set;
the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps:
and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the second indication information.
18. The method as claimed in claim 15 or 16, wherein before the terminal determines the structure of each time domain resource unit in the time domain resource unit set according to at least the pre-agreed ordering between the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the method further comprises:
the terminal receives third indication information sent by the network equipment through the common control information or the terminal specific control information; wherein, the third indication information is used for indicating a time length corresponding to one symbol in the time domain resource unit set;
the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps:
and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information and the third indication information.
19. The method as claimed in claim 15 or 16, wherein before the terminal determines the structure of each time domain resource unit in the time domain resource unit set according to at least the pre-agreed ordering between the regions in each time domain resource unit in the time domain resource unit set and the first indication information, the method further comprises:
the terminal receives fourth indication information sent by the network equipment through the common control information or the terminal specific control information; wherein the fourth indication information is used to indicate the total number of symbols contained in each of the N time domain resource units;
the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps:
and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fourth indication information.
20. The method according to claim 15 or 16, wherein when the data transmission direction in which at least one time domain resource unit exists in the N time domain resource units is a downlink transmission direction from the network device to the terminal, before the terminal determines the structure of each time domain resource unit in the time domain resource unit set according to at least a pre-agreed ordering among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, further comprising:
the terminal receives fifth indication information sent by the network equipment through the common control information or the terminal specific control information; the fifth indication information is used to indicate the number of consecutive symbols occupied by a time offset region in a time domain resource unit in which the data transmission direction is downlink;
the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the predetermined sequence among the regions in each time domain resource unit of the time domain resource unit set and the first indication information, and the method comprises the following steps:
and the terminal determines the structure of each time domain resource unit in the time domain resource unit set at least according to the prearranged sequence among the regions in each time domain resource unit of the time domain resource unit set, the first indication information and the fifth indication information.
21. The method of claim 15, wherein the set of time domain resource units includes a first group of time domain resource units including the first time domain resource unit and a first aggregated time domain resource unit, the first aggregated time domain resource unit being consecutive to the first time domain resource unit and having a same data transmission direction;
k time domain resource units are spaced between the first group of time domain resource units and another group of time domain resource units in the time domain resource unit set, wherein the K time domain resource units are positioned in other time domain resource unit sets; k is greater than or equal to 0; the other set of time domain resource units includes at least one time domain resource unit.
22. The method of claim 21, wherein the first indication information is further for indicating a number M of time domain resource units included in the first aggregated time domain resource unit1And the number of time domain resource units K of the interval; wherein, M is1Is an integer greater than or equal to 0.
23. The method of claim 22, wherein the other set of time domain resource units comprises a second aggregate time domain resource unit, and wherein the first indication information is further used for indicating time domain resources included in the second aggregate time domain resource unitNumber of units M2，M2Is an integer greater than or equal to 0.
24. The method according to any one of claims 21 to 23, wherein the terminal determines, by a second manner, the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit in the first aggregated time domain resource unit, which are indicated by the network device;
wherein the second mode is as follows: indicating the number of continuous symbols occupied by the downlink control region, the number of continuous symbols occupied by the uplink control region and the number of continuous symbols occupied by the data transmission region in one time domain resource unit in the first aggregation time domain resource unit.
25. The method of claim 23, wherein the terminal determines the M indicated by the network device by a third means2The data transmission direction of each time domain resource unit in the first aggregation time domain resource units and the data transmission direction of the time domain resource unit where the first indication information is located; wherein the third mode is as follows: indicating the data transmission direction of the time domain resource unit in which the first indication information is located;
or;
the terminal determines, by a fourth method, the data transmission direction of each time domain resource unit in the second aggregation time domain resource unit indicated by the network device, and the number of consecutive symbols occupied by the downlink control region, the number of consecutive symbols occupied by the uplink control region, and the number of consecutive symbols occupied by the data transmission region in each time domain resource unit; wherein the fourth mode is: and indicating the data transmission direction of one time domain resource unit in the second aggregation time domain resource unit, the number of continuous symbols occupied by the downlink control area, the number of continuous symbols occupied by the uplink control area and the number of continuous symbols occupied by the data transmission area.
26. The method according to claim 15 or 16, wherein the common control information is carried in any one or any several of the following channels:
a dedicated control channel;
performing resource allocation control channel in a static or semi-static mode;
a physical downlink control channel.
27. The method according to claim 15 or 16, wherein when the data transmission direction is an uplink transmission direction transmitted from the terminal to the network device, the ordering between the respective regions in the time domain resource unit with the uplink transmission direction satisfies the following condition:
and the downlink control region, the GP region, the data transmission region with the data transmission direction being uplink, and the uplink control region are sequentially arranged along the time domain direction.
28. The method according to claim 15 or 16, wherein when the data transmission direction is a downlink transmission direction transmitted from the network device to the terminal, the ordering between the regions in the time domain resource unit with the downlink transmission direction satisfies the following condition:
the downlink control region, the data transmission region with the downlink data transmission direction, the GP region and the uplink control region are sequentially arranged along the time domain direction;
or;
the downlink control region, the time offset region, the data transmission region with the downlink data transmission direction, the GP region, and the uplink control region are sequentially arranged along the time domain direction.
29. A network device for a time domain resource unit set structure, characterized in that it is adapted to said time domain resource unit set comprising N time domain resource units; n is an integer greater than or equal to 1; the network device comprises a processor, a transceiver, and a memory;
the memory is configured to store instructions, and the processor is configured to control the transceiver to perform signal reception and signal transmission according to the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the network device is configured to perform the method according to any one of claims 1 to 14.
30. A terminal for a time domain resource unit set structure, characterized in that it is adapted to said time domain resource unit set comprising N time domain resource units; n is an integer greater than or equal to 1; the terminal comprises a processor, a transceiver and a memory;
the memory is configured to store instructions, and the processor is configured to control the transceiver to perform signal reception and signal transmission according to the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the terminal is configured to perform the method according to any one of claims 15 to 28.
CN201610879294.9A 2016-09-30 2016-09-30 Method for determining time domain resource unit set structure, network equipment and terminal Active CN107889251B (en)

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