CN107294688B

CN107294688B - Data transmission method and base station

Info

Publication number: CN107294688B
Application number: CN201610204620.6A
Authority: CN
Inventors: 秦熠; 栗忠峰; 李华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2021-01-15
Anticipated expiration: 2036-03-31
Also published as: CN107294688A; WO2017167292A1

Abstract

The embodiment of the invention provides a method for downlink transmission, which comprises the following steps: a base station determines a first subframe structure, wherein the first subframe structure at least comprises a first downlink part; the base station sends the first downlink part according to the first subframe structure; if the first subframe structure includes the second downlink portion, the sending the first downlink portion includes: transmitting the first downlink portion and the second downlink portion; if the first subframe structure includes the uplink portion, the method further includes: the base station receives the uplink portion according to a first subframe structure. The base station in the embodiment of the invention can dynamically determine the subframe structure to be used, thereby ensuring the utilization rate of resources and avoiding resource waste.

Description

Data transmission method and base station

Technical Field

The present invention relates to the field of communications, and in particular, to a method for data transmission and a base station.

Background

With the development of mobile internet technology, multi-antenna technology is increasingly applied. In order to improve performance and coverage in a multi-antenna scenario, the number of antennas and the number of transmit units (TXRUs) need to be increased greatly to make beams more concentrated. However, this also leads to a large increase in the cost of the transmitting end, which becomes unacceptable, especially in high frequency scenarios. For this reason, a Hybrid Beamforming (HBF) scheme is introduced. In the application of the HBF, the original pure Digital Beamforming (DBF) is changed into a combination of the DBF and Analog Beamforming (ABF), and a radio frequency link is replaced by a part of phase shifters on a physical device, so that the cost is reduced while the number of antennas is increased.

Unlike the radio frequency link, the phase adjustment of the phase shifter requires adjustment time, which is not negligible in the existing communication system, and since whether analog beam switching is required or not is dynamically determined, reserving fixed switching time may cause a certain waste of resources.

In a Time-Division duplex (TDD) system, there is a switching process from downlink to uplink, and since distances from users to a base station are different, Time required for information transmission between users and the base station is also different, and in order to prevent mutual interference between uplink transmission and downlink transmission of users far from the base station, a Guard Period (GP) needs to be reserved between uplink transmission and downlink transmission.

In addition, the base station needs to scan all analog beams to obtain the information of the optimal analog beam (group) for each user, and since the analog beam scanning may multiplex the existing Reference Signals (RS) in some cases, the fixed beam scanning may cause a certain waste of resources.

It follows that the fixed transmission format, whether guard interval or analog beam scanning, results in a waste of resources.

Disclosure of Invention

The embodiment of the invention provides a data transmission method, which can dynamically determine a subframe structure, thereby ensuring the utilization rate of resources and avoiding resource waste.

In a first aspect, a method for data transmission is provided, including:

the base station determines a first subframe structure, wherein the first subframe structure comprises any one of the following:

the first, lower, portion of the column,

the first descending portion and the first guard interval GP,

a first descending section and a second descending section,

a first descending section, a first GP, and a second descending section,

a first descending section, a first GP, a second descending section and a third GP,

a first downstream portion, a second GP, and an upstream portion,

a first downstream portion, a second GP, an upstream portion and a third GP,

a first descending part, a second GP and an ascending part,

a first descending part, a first GP, a second descending part, a second GP and an ascending part,

a first downlink portion, a first GP, a second downlink portion, a second GP, an uplink portion and a third GP;

the base station sends the first downlink part according to the first subframe structure;

if the first subframe structure includes the second downlink portion, the sending the first downlink portion includes: transmitting the first downlink portion and the second downlink portion;

if the first subframe structure includes the uplink portion, the method further includes: the base station receives the uplink part according to a first subframe structure;

wherein the first downlink part is a first downlink control channel and a physical layer shared channel (PDSCH); the second downlink part is a first Reference Signal (RS) and/or a second downlink control channel; the uplink part is a physical uplink control channel PUCCH and/or a second RS and/or a physical uplink shared channel PUSCH; the first downlink control channel is a first physical downlink control channel PDCCH or a first enhanced physical downlink control channel ePDCCH; the second downlink control channel comprises a second PDCCH or a second ePDCCH or a physical hybrid automatic repeat request indicator channel PHICH.

In the embodiment of the invention, the base station can dynamically determine the first subframe structure to be used when transmitting. Further, the base station may transmit according to the first subframe structure, and accordingly, the UE may receive according to the first subframe structure. Therefore, the utilization rate of resources can be ensured, and resource waste is avoided.

Optionally, before the sending the first downlink portion, the method further includes: the base station sends indication information, and the indication information is used for indicating that the first subframe structure is to be used.

In this way, the base station may notify the UE of the determined first subframe structure through the indication information, so that the UE can receive according to the first subframe structure.

Optionally, the sending the first downlink portion includes: and the base station sends downlink control information DCI, wherein the DCI is carried in the first downlink control channel, and the DCI is used for indicating part or all channels and/or signals and/or symbols occupied by GP carried by the first subframe structure.

Optionally, if the first subframe structure includes a first RS, the DCI is further configured to indicate a transmission method of the first RS. If the first subframe structure includes a second downlink control channel, the DCI is further configured to indicate a transmission method of the second downlink control channel. Wherein the sending method comprises at least one of the following: the used transmitting or receiving beams, the used resource mapping mode and the occupied sub-carriers.

Optionally, if the first subframe structure includes a first GP, the DCI is further configured to indicate a duration t of the first GP₁Wherein t is₁0 or t₁>0; and/or, if the first subframe structure includes a second GP, the DCI is further configured to indicate a duration t of the second GP₂Wherein t is₂0 or t₂>0; and/or, if the first subframe structure includes a third GP, the DCI is further to indicate a duration t3 of the third GP, wherein t3 ═ 0 or t3>0。

In a second aspect, a method for data transmission is provided, including:

the first upstream portion is a portion of the first upstream portion,

the first guard interval GP and the first upstream part,

a second upstream portion and a first upstream portion,

a second upstream portion, a first GP, and a first upstream portion,

a second upstream portion, a first GP, a first upstream portion and a third GP,

a downlink portion, a second GP, and a first uplink portion,

a downlink portion, a second GP, a first uplink portion and a third GP,

a downlink part, a second GP, a second uplink part and a first uplink part,

a downlink part, a second GP, a second uplink part, a first GP and a first uplink part,

a downlink part, a second GP, a second uplink part, a first GP, a first uplink part and a third GP;

the base station receives the first uplink part according to the first subframe structure;

if the first subframe structure includes the second uplink portion, the receiving the first uplink portion includes: receiving the first uplink portion and the second uplink portion;

if the first subframe structure includes the downlink portion, the method further comprises: the base station sends the downlink part according to a first subframe structure;

the first uplink part is a Physical Uplink Shared Channel (PUSCH), the second uplink part is a Physical Uplink Control Channel (PUCCH) and/or a first Reference Signal (RS), the downlink part is a second downlink control channel and/or a second RS, and the second downlink control channel comprises a second Physical Downlink Control Channel (PDCCH), a second enhanced physical downlink control channel (ePDCCH), or a physical hybrid automatic repeat request indicator channel (PHICH).

In the embodiment of the present invention, the base station may dynamically determine the first subframe structure to be used when performing transmission, and further, the UE may perform transmission according to the first subframe structure, and the base station may perform reception according to the first subframe structure. Therefore, the utilization rate of resources can be ensured, and resource waste is avoided.

In a third aspect, a method for data transmission is provided, the method including: and the UE acquires a first subframe structure determined by the base station and receives according to the subframe structure or receives and transmits according to the subframe structure. Wherein the first subframe structure is as described above in the first aspect.

In a fourth aspect, a method for data transmission is provided, the method comprising: and the UE acquires a first subframe structure determined by the base station and transmits according to the subframe structure, or receives and transmits according to the subframe structure. Wherein the first subframe structure is as described above in the second aspect.

In a fifth aspect, a base station is provided, which includes: a determining unit, a sending unit and a receiving unit, configured to perform each process performed by the base station in the method for downlink transmission in the foregoing first aspect and various implementations.

In a sixth aspect, there is provided a base station comprising: a determining unit, a sending unit and a receiving unit, configured to perform each process performed by the base station in the method for uplink transmission in the foregoing second aspect and various implementations.

In a seventh aspect, a base station is provided that includes a processor, a transmitter, a receiver, and a memory. The base station may be configured to perform each process performed by the base station in the method for downlink transmission in the foregoing first aspect and various implementation manners.

In an eighth aspect, a base station is provided that includes a processor, a transmitter, a receiver, and a memory. The base station may be configured to perform each process performed by the base station in the method for uplink transmission in the foregoing second aspect and various implementation manners.

A ninth aspect provides a UE, which includes an obtaining unit, a receiving unit, and a sending unit, and is configured to execute each process executed by the UE in the method for downlink transmission in the foregoing third aspect and various implementations.

A tenth aspect provides a UE, which includes an obtaining unit, a receiving unit, and a sending unit, and is configured to execute each process executed by the UE in the method for uplink transmission in the foregoing fourth aspect and various implementations.

In an eleventh aspect, there is provided a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, where the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement each process executed by the base station in the method for downlink transmission in the foregoing first aspect and various implementations.

In a twelfth aspect, there is provided a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement the processes performed by the base station in the method for uplink transmission in the foregoing second aspect and various implementations.

In a thirteenth aspect, there is provided a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement each process performed by the UE in the method for uplink transmission in the foregoing third aspect or fourth aspect and various implementations.

In a fourteenth aspect, a computer-readable storage medium is provided, which stores a program that causes a base station to execute the method for downlink transmission of the first aspect and any of its various implementations.

In a fifteenth aspect, a computer-readable storage medium is provided, which stores a program that causes a base station to execute the method for uplink transmission of the second aspect and any of its various implementations.

In a sixteenth aspect, a computer-readable storage medium is provided, which stores a program for causing a UE to execute the third or fourth aspect, and any of its various implementations, as a method for uplink transmission.

In a seventeenth aspect, a communication system is provided, which includes the foregoing base station, and the foregoing UE.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention;

fig. 2 is a schematic diagram of a special subframe for carrying uplink and downlink handover in LTE;

fig. 3 is a schematic flow chart of a method for downlink transmission according to an embodiment of the present invention;

FIG. 4 is a diagram of a subframe structure according to an embodiment of the present invention;

fig. 5 (a) - (i) are another schematic diagrams of the sub-frame structure according to the embodiment of the present invention;

FIG. 6 is another diagram of a subframe structure according to an embodiment of the present invention;

FIG. 7 is another diagram of a subframe structure according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a structural block diagram of a base station of an embodiment of the present invention;

fig. 9 is another schematic diagram of a block diagram of the base station of the embodiment of the present invention;

FIG. 10 is a schematic block diagram of a system chip of an embodiment of the present invention;

fig. 11 is a schematic flow chart diagram of a method for uplink transmission in accordance with an embodiment of the present invention;

FIG. 12 is another diagram of a subframe structure according to an embodiment of the invention;

fig. 13 (a) - (g) are another schematic diagrams of the sub-frame structure according to the embodiment of the present invention;

FIG. 14 is another diagram of a subframe structure according to an embodiment of the invention;

FIG. 15 is another diagram of a subframe structure according to an embodiment of the invention;

fig. 16 is another diagram showing a block diagram of the base station according to the embodiment of the present invention;

fig. 17 is another diagram of a block diagram of the base station according to the embodiment of the present invention;

fig. 18 is another schematic structural diagram of a system chip of the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present invention. In fig. 1, a UE 20 is capable of communicating with a base station 10. Also, the arrows shown in fig. 1 may represent uplink/downlink transmissions over the cellular link between the UE 20 and the base station 10.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), and the like.

It should also be understood that, in the embodiment of the present invention, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, or a Base Station device in a future 5G network, and the like, which is not limited in the present invention.

It should also be understood that in the embodiments of the present invention, a UE may communicate with one or more Core networks (Core networks) via a Radio Access Network (RAN), and may be referred to as an Access terminal, a terminal device, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The UE may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network, and so on.

In the existing LTE TDD system, there is a Downlink-to-Uplink switching process, and in order to prevent mutual interference between Downlink transmission and Uplink transmission, a certain GP needs to be reserved, as shown in fig. 2, a schematic diagram of a special subframe for carrying Uplink and Downlink switching in LTE is shown, where the GP is included between a Downlink Pilot Time Slot (DwPTS) and an Uplink Pilot Time Slot (UpPTS).

In addition, the configuration of the special subframe by the higher layer signaling in the existing LTE may include the configuration of a downlink normal Cyclic Prefix (CP) and a downlink extended CP as shown in the following table. Thus, different configurations can be used for different scenarios, such as different uplink and downlink requirements, different cell radii, and other information.

Watch 1

However, the configuration in the existing LTE system is configured by a higher layer, and the configuration change is gradual. However, the analog beam of the system in the HBF Transmission may change every Transmission Time Interval (TTI), that is, the HBF Transmission is fast. As can be seen, the conventional LTE configuration method cannot support the subframe change speed of the HBF system. That is, the existing LTE configuration only supports the time domain length configuration of each channel/signal/GP in the subframe, and cannot support TTI-level configuration of the channel/signal itself.

The embodiment of the invention provides a method capable of dynamically indicating the configuration of a subframe. Fig. 3 is a schematic flow chart of a method for downlink transmission, the method comprising:

s301, the base station 10 determines a first subframe structure.

The first subframe structure comprises any one of:

(0) the first, lower, portion of the column,

(1) a first descending portion and a first Guard interval (GP),

(2) a first descending section and a second descending section,

(3) a first descending section, a first GP, and a second descending section,

(4) a first descending section, a first GP, a second descending section and a third GP,

(5) a first downstream portion, a second GP, and an upstream portion,

(6) a first downstream portion, a second GP, an upstream portion and a third GP,

(7) a first descending part, a second GP and an ascending part,

(8) a first descending part, a first GP, a second descending part, a second GP and an ascending part,

(9) the system comprises a first descending part, a first GP, a second descending part, a second GP, an ascending part and a third GP.

Wherein the first Downlink portion is a first Downlink control Channel (PDSCH) and a Physical Downlink Shared Channel (PDSCH); the second downlink part is a first Reference Signal (RS) and/or a second downlink control channel; the Uplink part is a Physical Uplink Control Channel (PUCCH) and/or a second RS and/or a Physical Uplink Shared Channel (PUSCH); the first Downlink Control Channel is a first Physical Downlink Control Channel (PDCCH) or a first enhanced PDCCH (ePDCCH); the second downlink control Channel includes a second PDCCH, a second ePDCCH, or a Physical Hybrid Automatic Repeat reQuest Indicator Channel (PHICH).

Wherein, as an embodiment, the first subframe structure may be protocol-specified. The base station 10 may determine this first subframe structure according to the communication protocol used.

As another embodiment, the base station 10 may select from multiple subframe structures, and determine one of the multiple subframe structures as the first subframe structure. The plurality of subframe structures may be (0) to (9) described above, or the plurality of subframe structures may be part of the above, for example, the plurality of subframe structures may be (0) to (4) described above, and so on.

Alternatively, after S301, the base station 10 may transmit indication information indicating that the first subframe structure is to be used.

The base station 10 may send indication information to the UE 20 for informing the UE 20 that the subframe structure used by the UE 20 is the first subframe structure. Alternatively, it is understood that the indication information is used to achieve a consensus with the UE 20 to use the first subframe structure.

Alternatively, the indication Information may be carried in a System Information Block (SIB), or the indication Information may be transmitted through RRC signaling, or the indication Information may be transmitted through a synchronization signal, or the indication Information may be indicated through an MIB, and so on. Alternatively, the first subframe structure may be configured in a higher layer signaling, and the Downlink Control Information (DCI) includes Information enabling the configuration. The invention is not limited in this regard.

S302, the base station 10 transmits or transmits and receives according to the first subframe structure.

That is, the base station 10 transmits channels and/or signals according to the first subframe structure, or the base station 10 transmits and receives channels and/or signals according to the first subframe structure.

Specifically, the base station 10 transmits the first downlink portion according to a first subframe structure. If the first subframe structure includes the second downlink portion, the sending the first downlink portion includes: and transmitting the first downlink portion and the second downlink portion. If the first subframe structure includes the uplink portion, the method further includes: the base station receives the uplink portion according to a first subframe structure.

It can be understood that if the first subframe structure is (0) - (1) described above, the base station 10 transmits the first downlink portion in S302. If the first subframe structure is (2) - (4) above, the base station 10 transmits the first downlink portion and the second downlink portion in S302. If the first subframe structure is (5) - (6) above, the base station 10 transmits the first downlink portion and receives the uplink portion in S302. If the first subframe structure is (7) described above, the base station 10 transmits the first downlink part and the second downlink part, and receives the uplink part in S302.

The first downlink part includes a first PDCCH and a PDSCH, and the base station 10 may include, when transmitting the first downlink part:

the base station 10 sends Downlink Control Information (DCI), where the DCI is carried in a first Downlink Control channel, and the DCI is used to indicate a symbol occupied by a part or all of channels and/or signals and/or GPs carried by using the first subframe structure.

The channels herein may include a first downlink control channel, a second downlink control channel, a PUCCH, a PDSCH, and a PUSCH. The signal may include a first RS and a second RS. The GP may include a first GP, a second GP, and a third GP.

Optionally, if the first subframe structure includes a first RS, the DCI may be further configured to indicate a transmission method of the first RS. If the first subframe structure includes a second downlink control channel, the DCI may be further configured to indicate a transmission method of the second downlink control channel. The sending method comprises at least one of the following steps: the used transmitting or receiving beams, the used resource mapping mode and the occupied sub-carriers.

In addition, optionally, if the first subframe structure includes a first GP, the DCI is further configured to indicate a duration t of the first GP₁Wherein t is₁0 or t₁>0. And/or, if the first subframe structure includes a second GP, the DCI is further configured to indicate the second GPDuration t of GP₂Wherein t is₂0 or t₂>0. And/or, if the first subframe structure includes a third GP, the DCI is further to indicate a duration t3 of the third GP, wherein t3 ═ 0 or t3>0。

The first subframe structure and information indicated by DCI will be described in detail below.

For convenience of description, channels and/or signals and/or GPs carried by the first subframe structure are collectively referred to as information carried by the first subframe structure.

Optionally, the symbols occupied by the information carried using the first subframe structure may include at least symbols occupied by the PDSCH.

For example, if the first subframe structure is (1) described above, the DCI may indicate a time length of the PDSCH and a time length of the first GP. Or, the DCI may indicate the number of symbols occupied by the PDSCH and the number of symbols occupied by the first GP. Further, the DCI may also indicate a symbol occupied by the first downlink control channel.

It is to be understood that the base station may indicate the configuration of the first subframe structure through higher layer signaling in S301, and include indication information enabling the first subframe structure by DCI in S302.

In this embodiment of the present invention, the subframe transmitted or transmitted and received by the base station 10 in S302 may be referred to as a target subframe.

In the embodiment of the present invention, the symbols occupied by the PDSCH may include symbols occupied by the PDSCH and a DeModulation Reference Signal (DMRS) thereof, and it should be noted that, for simplicity and convenience of description, the "symbols occupied by the PDSCH and the DMRS thereof" are used in the subsequent embodiments of the present invention. And the symbols occupied by the PDSCH may include the position and number of the symbols occupied by the PDSCH. The symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

The information carried on the other symbols except the symbols occupied by the first PDCCH and the PDSCH in the subframe comprises channels and/or signals and/or GPs. It is understood that after S301, the base station 10 may indicate information carried on the other symbol through the indication information.

Wherein information carried on symbols other than the symbols occupied by the first downlink control channel and the PDSCH in the subframe includes any one of: (1) a first RS and/or a second downlink control channel of beam scanning; (2) a first GP; (3) a first GP and a first RS and/or a second downlink control channel; (4) the first RS and/or the second downlink control channel, the second GP and the PUCCH and/or the second RS; (5) a first GP, a first RS and/or a second downlink control channel, a second GP, a PUCCH and/or a second RS; (6) a second GP and PUCCH and/or a second RS. The second downlink control channel may be a second PDCCH, a second ePDCCH, or a PHICH.

The second PDCCH or the second ePDCCH may include indication information of an uplink subframe after the subframe, that is, the uplink DCI in the second PDCCH or the second ePDCCH may include an indication of the corresponding subframe. The PHICH is used to indicate feedback information of an uplink subframe prior to the subframe, for example, the feedback information may be an Acknowledgement (ACK) or a Negative Acknowledgement (NACK).

In the embodiment of the present invention, when the information carried by the other symbols includes both the first RS and the second downlink control channel, the first RS and the second downlink control channel multiplex the same resource. Taking the second downlink control channel as the second PDCCH as an example, the information carried on the other symbols includes the first RS and the second downlink control channel, which means that the information carried on the other symbols includes the first RS and the second PDCCH, and the first RS and the second PDCCH multiplex the same resource. The information carried on the other symbols includes the first GP, the first RS, and/or the second downlink control channel, which means that the information carried on the other symbols includes the first GP, the first RS, and the second PDCCH, and the first RS and the second PDCCH multiplex the same resource.

Likewise, it can be understood that when the information carried by the other symbols includes both the second RS and the PUCCH, the second RS and the PUCCH multiplex the same resource. For example, when the information carried on the other symbols includes the second GP, the PUCCH, and the second RS, the PUCCH and the second RS multiplex the same resource. And when the information carried on the other symbols comprises the first RS, the second GP, the PUCCH and the second RS multiplex the same resource. And when the information carried on the other symbols comprises the first GP, the first RS, the second GP, the PUCCH and the second RS multiplex the same resource.

That is to say, in the embodiment of the present invention, the "first RS and/or the second downlink control channel" includes the following three situations: (1) the first RS, (2) the second downlink control channel, and (3) the multiplexed first RS and second downlink control channel. In the embodiment of the present invention, the "PUCCH and/or the second RS" includes the following three cases: (1) PUCCH, (2) second RS, (3) multiplexed PUCCH and second RS.

Optionally, the second RS in the embodiment of the present invention may be a Sounding Reference Signal (SRS) for uplink.

That is, the information carried on the other symbols of the subframe except the symbol occupied by the first downlink control channel and the PDSCH may be: the first RS and/or the second downlink control channel, or the first GP and the first RS and/or the second downlink control channel. The information carried on the other symbols of the subframe except the symbol occupied by the first downlink control channel and the PDSCH may be: the first GP, or the second GP and the PUCCH and/or the second RS. The information carried on the other symbols of the subframe except the symbol occupied by the first downlink control channel and the PDSCH may be: the first RS and/or the second downlink control channel, the second GP and the PUCCH and/or the second RS, or the first GP, the first RS and/or the second downlink control channel, the second GP and the PUCCH and/or the second RS.

Specifically, the determination may be made according to specific situations, and may be divided into a plurality of cases as shown below:

case 1: the subframe is a downlink subframe, and information carried on other symbols in the downlink subframe except for a symbol occupied by the first downlink control channel and the PDSCH includes a first Guard Period (GP), a first Reference Signal (RS) used for beam scanning, and/or a second downlink control channel. The first downlink control channel may be a first PDCCH or a first ePDCCH, and the second downlink control channel may be a second PDCCH or a second ePDCCH or a PHICH.

Specifically, the base station 10 may send a second downlink control channel in the downlink subframe, and optionally, the second downlink control channel may be used to indicate a configuration of a next uplink subframe of the downlink subframe. And the analog beam used for PDSCH transmission in the downlink subframe is different from the analog beam of the second downlink control channel. At this time, it may be determined that the configuration is the case 1. That is, the information carried on the other symbols includes the first GP and the second downlink control channel. Since a switching time is required between different analog beams, a first GP needs to be configured between the PDSCH and the second downlink control channel.

Specifically, if the base station 10 determines that the downlink subframe needs to be beam-scanned and the analog beam used for PDSCH transmission is not the same as the analog beam of the first RS, it may be determined that the configuration is case 1. That is, the information carried on the other symbols includes the first GP and the first RS. Here, since a switching time is required between different analog beams, a first GP needs to be configured between the PDSCH and the first RS.

Specifically, the base station 10 may include the second downlink control channel and the first RS in the subframe at the same time, and the second downlink control channel and the first RS multiplex the same resource.

The resources of the downlink subframe may be divided into 4 parts in a time division manner, as shown in fig. 4, which are resource 0, resource 1, resource 2, and resource 3, respectively.

It can be seen that, in case 1, resource 0 in fig. 4 carries the first downlink control channel, resource 1 carries the PDSCH, resource 2 carries the first GP, and resource 3 carries the first RS and/or the second downlink control channel.

For example, if the first downlink control channel is a first PDCCH and the second downlink control channel is a second PDCCH, case 1 may be as shown in fig. 5 (a).

The DCI described in S302 may also be used to indicate a symbol occupied by the first GP. The symbols occupied by the first GP may include the location and number of symbols occupied by the first GP. Wherein, as shown in fig. 5 (a), the position of the symbol occupied by the first GP may be adjacent to the position of the symbol occupied by the PDSCH.

Alternatively, the DCI described in S302 may be further used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁Then for this case 1, t₁>0。

Further, if the information carried by the other symbols includes the first RS, the DCI may be further configured to indicate a transmission method of the first RS. For example, the first RS can have N₁Different transmission methods are used. Here, N₁Different transmission methods can be recorded as 1 st to Nth₁A method of transmitting is provided.

The sending method comprises at least one of the following steps: the used transmitting or receiving beam, the length of the time dimension, and the occupied sub-carrier.

That is, the transmission method relates to the used transmission beam or reception beam, the time dimension length, the occupied subcarriers, and the like, and different transmission methods refer to different used transmission beams or reception beams, or different transmission methods refer to different time dimension lengths, or different transmission methods refer to different used transmission beams or reception beams and different time dimension lengths, or different time dimension lengths and different occupied subcarriers, or different transmission methods refer to different used transmission beams or reception beams, different time dimension lengths and different occupied subcarriers, and the like.

Case 2: the subframe is a downlink subframe, and information carried on other symbols in the downlink subframe except the symbol occupied by the first downlink control channel and the PDSCH includes a first RS and/or a second downlink control channel used for beam scanning. The first downlink control channel may be a first PDCCH or a first ePDCCH, and the second downlink control channel may be a second PDCCH or a second ePDCCH or a PHICH.

Specifically, the base station 10 may send a second downlink control channel in the downlink subframe, and optionally, the second downlink control channel may be used to indicate a configuration of a next uplink subframe of the downlink subframe. And the analog beam used for PDSCH transmission is the same as the analog beam of the second downlink control channel. At this time, it may be determined that the configuration is the case 2. Since the analog beams of both (PDSCH and second downlink control channel) are the same, there may be no first GP between the two.

Specifically, if the base station 10 determines that the downlink subframe needs to be beam-scanned and the analog beam used for PDSCH transmission is the same as the analog beam of the first RS, it may be determined that the configuration is case 2. Since the analog beams of both (PDSCH and first RS) are the same, there may be no first GP between the two.

It can be seen that, case 2 is equivalent to resource 0 in fig. 4 carrying the first downlink control channel, resources 1 and 2 carrying the PDSCH, and resource 3 carrying the first RS and/or the second downlink control channel.

For example, if the first downlink control channel is a first PDCCH and the second downlink control channel is a second PDCCH, case 2 may be as shown in fig. 5 (b). Optionally, the second downlink control channel may occupy a part of the bandwidth of resource 3, that is, a part of the bandwidth of resource 3 carries the second downlink control channel, and the remaining part of the bandwidth of resource 3 may be used to carry the PDSCH. Thus, the resource utilization rate can be further improved.

In conjunction with the description of case 1, the DCI in S302 may be further used to indicate a symbol occupied by the first GP. Alternatively, the DCI described in S302 may be used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁Then here, t₁＝0。

As can be seen, the DCI may further be used to indicate a duration of the first GP, assuming that the duration of the first GP is denoted as t₁，t₁>0 or t₁0. Accordingly, the UE 20 may determine that it is case 1 (t) according to the duration of the first GP₁>0) Or case 2 (t)₁＝0)。

Further, if the information carried by the other symbols includes the first RS, that is, if resource 3 carries the first RS or resource 3 carries the first RS and the second downlink control channel in case 2, the DCI may be further configured to indicate a transmission method of the first RS. For example, the first RS in case 2 may have N₂Different transmission methods are used. Here, N₂The different transmission methods can be recorded as Nth₁+1 to Nth₁+N₂A method of transmitting is provided.

In case 2, since the analog beam of the PDSCH is the same as the analog beam of the first RS and/or the second downlink control channel, the switching time of the analog beam is not required, so that the resource 2 can carry the PDSCH, and downlink transmission can be performed by using the resource where the original guard interval (i.e., the first GP) is located, so that the resource can be fully utilized, and the downlink throughput can be improved. Meanwhile, the DCI can indicate the sending method of the first RS scanned by different beams, so that the receiving analog beam switching between TTIs is supported, that is, the dynamic configuration of TTI level can be supported, and the flexibility of downlink information sending is increased.

Case 3: and the information carried on other symbols except the symbols occupied by the first downlink control channel and the PDSCH in the subframe comprises a second GP, a PUCCH and/or a second RS.

That is, the information carried on the other symbols includes a second GP and a PUCCH, or the information carried on the other symbols includes a second GP and a second RS, or the information carried on the other symbols includes a second GP, a PUCCH, and a second RS, where the PUCCH and the second RS multiplex the same resource.

For transmission and reception of a subframe that may include both uplink and downlink transmissions, the uplink transmission in the subframe may include an uplink control channel (i.e., PUCCH) or an uplink pilot (i.e., second RS).

Specifically, if the base station 10 determines that the subframe includes uplink and downlink transmissions, it may be determined that the configuration is case 3. Here, since a switching time is required between uplink and downlink, a second GP needs to be configured between the PDSCH and the PUCCH and/or the second RS. That is, the second GP needs to be configured between the PDSCH and the PUCCH, or the second GP needs to be configured between the PDSCH and the second RS, or the second GP needs to be configured between the PDSCH and the PUCCH and the second RS.

It can be seen that, case 3 is equivalent to resource 0 in fig. 4 carrying the first downlink control channel, resource 1 carrying the PDSCH, resource 2 carrying the second GP, and resource 3 carrying the PUCCH and/or the second RS.

For example, if the first downlink control channel is the first PDCCH, case 3 may be as shown in fig. 5 (c).

Alternatively, in case 3, resource 2 and resource 3 may be shifted before resource 1 in time domain, i.e. resource 2 and resource 3 are located between resource 0 and resource 1 in time domain. For example, if the first downlink control channel is the first PDCCH, case 3 may be as shown in fig. 5 (d).

The DCI described in S302 may be used to indicate the duration of the second GP, assuming that the duration of the second GP is denoted as t₂Then for this case 3, t₂>0。

Optionally, for this case 3, the DCI described in S302 may also be used to indicate the duration t of the first GP₁And t is₁＝0。

Further, if the information carried on the other symbol includes the second RS, the DCI may also be used to indicate a transmission method of the second RS. If the information carried on the other symbols includes PUCCH, the DCI may also be used to indicate a transmission method of the PUCCH. For example, the second RS and/or PUCCH in case 3 may have N₃Different transmission methods are used. Here, N₃The different transmission methods can be recorded as Nth₁+N₂+1 to Nth₁+N₂+N₃A method of transmitting is provided.

Case 4: the subframe is a downlink subframe, and information carried on other symbols except for the symbol occupied by the first downlink control channel and the PDSCH in the downlink subframe includes a first GP.

Specifically, if the base station 10 determines that the downlink subframe does not need to perform beam scanning, and the next subframe of the downlink subframe is also a downlink subframe, and the analog beam used by the downlink subframe is different from the analog beam used by the next downlink subframe, it may be determined that the configuration is the case 4.

It can be seen that case 4 is equivalent to resource 3 in fig. 4 incorporating resource 1, as shown in fig. 6, resource 1 and resource 3 carry PDSCH, and resource 2 carries the first GP. Alternatively, this situation can also be understood as: resource 3 does not exist or resource 2 is time-domain shifted to the end of the subframe.

For example, if the first downlink control channel is the first PDCCH, case 4 may be as shown in fig. 5 (e).

It can be understood that resource 2 in fig. 6 carries the first GP because the analog beams with different adjacent two downlink subframes require switching time.

Accordingly, the DCI described in S302 may be used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁Then for this case 4, t₁>0。

Optionally, for this case 4, the DCI described in S302 may also be used to indicate the duration t of the second GP₂And t is₂＝0。

Case 5: the PDSCH occupies all symbols of the subframe. That is, there is no symbol other than the symbol occupied by the first downlink control channel and the PDSCH in the subframe.

That is, information carried on other symbols in the subframe except for the symbol occupied by the first downlink control channel and the PDSCH is null. Or, no other information is carried in the subframe except for the first downlink control channel and the PDSCH.

It can be seen that case 5 is equivalent to resource 0 in fig. 4 carrying the first downlink control channel, and resource 1, resource 2 and resource 3 are all used to carry PDSCH.

For example, if the first downlink control channel is the first PDCCH, case 5 may be as shown in fig. 5 (f).

Specifically, as an example, if the subframe is a downlink subframe, and the subframe does not need to be beam-scanned and GP does not need to be left between subframes, it may be determined that the case 5 is configured.

Therefore, the resource 2 and the resource 3 can bear the PDSCH, namely, the resource where the original guard interval is located is fully utilized for downlink transmission, and the resource where the first RS scanned by the original wave beam is located is fully utilized for downlink transmission, so that the resource can be fully utilized, and the downlink throughput is improved.

Specifically, as another example, if the subframe does not need uplink transmission in resource 3, that is, resource 3 does not transmit uplink control information, it may be determined to be configured as the case 5.

For example, the first RS for beam scanning may be transmitted periodically, which may be X subframes. Thus, some subframes need to transmit the first RS, and some subframes do not need to transmit the first RS.

In this way, the PDSCH can be carried by the resource 2 and the resource 3, that is, the resource where the original guard interval is located is fully utilized for downlink transmission, and the resource where the original uplink transmission (uplink control information) is located is fully utilized for downlink transmission, so that the resource can be fully utilized, and the downlink throughput can be improved.

Optionally, for this case 5, the DCI described in S302 may also be used to indicate the duration t of the first GP₁And t is₁0. Alternatively, for this case 5, the DCI described in S302 may also be used to indicate the duration t of the second GP₂And t is₂0. Alternatively, for this case 5, the DCI described in S302 may also be used to indicate the duration t of the first GP₁And duration t of the second GP₂And t is₁＝t₂＝0。

For the cases 1 to 5 described above, optionally, as an embodiment, a Resource Flag (Resource Flag) may be added to the DCI to indicate the various cases described above.

For example, the following Table two is given by N₁＝4，N₂＝2，N₃The description will be given by way of example 3.

Watch two

Wherein, the resource identifiers 0-3 in the second table correspond to the case 1, the resource identifiers 4-5 correspond to the case 2, the resource identifiers 8-10 correspond to the case 3, the resource identifier 6 corresponds to the case 4, and the resource identifier 7 corresponds to the case 5.

Thus, in the embodiment of the present invention, the corresponding configuration may be indicated in the DCI through the ResourceFlag, and further, in S302, the base station 10 may transmit according to the DCI, and accordingly, the UE 20 may receive according to the configuration. Dynamic configuration can be realized, and the flexibility of downlink transmission is increased.

For example, if the subframe is determined to be a downlink subframe. Then, a ResourceFlag of M bits (bit) may be added to the DCI to indicate the corresponding configuration, where

Here, the first and second liquid crystal display panels are,

meaning rounding up. The third table below is N₁＝4，N₂When M is 2, M is 3.

Watch III

The resource identification column corresponds to 0-7 and is 000-111 of M-3 bits.

It should be noted that the first GP carried by resource 2 may have a fixed form or have a number of different forms. For example, the first GP may be in a form related to the time domain length, and may be related to other contents. It can be appreciated that if there are multiple different forms of the first GP, the number of ResourceFlags needs to be increased accordingly.

That is, different forms of the first GP may be indicated in the DCI with different resource flags.

Optionally, as an embodiment, if information carried on other symbols in the subframe except for a symbol occupied by the first downlink control channel and the PDSCH includes the first GP, the DCI may be further configured to indicate a length of the first GP.

Optionally, as another embodiment, the DCI may also be used to indicate the length of the first GP. If the length of the first GP indicated by the DCI is 0, it indicates that the subframe does not carry the first GP.

Taking the time domain length as an example, the embodiment of the present invention does not limit the time domain length of the first GP carried by the resource 2. For example, the first GP may be of fixed time domain length, each of 2 OFDM symbols. For example, the first GP may have a dynamically variable time domain length, and the time domain length occupied by the first GP may be 1 OFDM symbol, or 1.5 OFDM symbols. The number of OFDM symbols occupied by the first GP may also be indicated by resource flag in DCI.

For example, if it has been determined that the subframe contains both uplink and downlink transmissions. Then, a ResourceFlag of M bits (bit) may be added to the DCI to indicate the corresponding configuration, where

TABLE IV below is N₃When M is 2, the corresponding configuration is 3.

Watch four

Wherein, the resource identifiers 0-2 in the table four correspond to the above case 3, and the resource identifier 3 corresponds to the above case 5. The resource identification column corresponds to 0-3 and is 00-11 of M-2 bits.

It can be seen that, in this embodiment, when uplink transmission is not needed, the original guard interval and the resource where the uplink transmission is located can be fully utilized to perform downlink transmission, and simultaneously, different uplink sending modes are also supported to be indicated. Since the indication information is carried in the downlink DCI, TTI-level dynamic configuration can be supported, and the flexibility of downlink information and PUCCH/second RS transmission is increased.

Based on the above description of case 1 to case 5, a case of simultaneously including the first RS and/or the second downlink control channel and the PUCCH and/or the second RS may also be considered. Specifically, the following cases are shown:

case 6: the information carried on the other symbols of the subframe except the symbols occupied by the first downlink control channel and the PDSCH comprises any one of the following: (1) the first RS and/or the second downlink control channel, the second GP and the PUCCH and/or the second RS; (2) a first GP, a first RS and/or a second downlink control channel, a second GP, and a PUCCH and/or a second RS. The second downlink control information may include a second PDCCH, a second ePDCCH, or a PHICH.

The resources of the subframe may be time-divisionally divided into 6 portions, as shown in fig. 7, which are resource 0, resource 1, resource 2, resource 3, resource 4, and resource 5, respectively.

It can be seen that (1) in case 6 is equivalent to resource 0 carrying the first downlink control channel, resources 1 and 2 carrying the PDSCH, resource 3 carrying the first RS and/or the second downlink control channel, resource 4 carrying the second GP, and resource 5 carrying the PUCCH and/or the second RS.

For example, if the first downlink control channel is a first PDCCH and the second downlink control channel is a second PDCCH, (1) in case 6 may be as shown in fig. 5 (g).

Optionally, if (1) in case 6 is the first RS, the second GP, and the PUCCH and/or the second RS. At this time, the first RS may be resource-multiplexed with the first downlink control channel. For example, if the first downlink control channel is the first PDCCH, the situation can be as shown in (h) of fig. 5. Therefore, the original resource for transmitting the first RS can be used for transmitting the PDSCH, the resource can be fully utilized, and the downlink throughput is improved.

For (1) in case 6, the DCI described in S302 may further be used to indicate a symbol occupied by the second GP. That is, the DCI described in S302 may be further used to indicate the duration of the second GP, assuming that the duration of the second GP is denoted as t₂，t₂>0. Optionally, the DCI may be further used to indicate a duration of the first GP, assuming that the duration of the first GP is denoted as t₁And t is₁＝0。

In case 6, (2) is equivalent to resource 0 carrying the first downlink control channel, resource 1 carrying the PDSCH, resource 2 carrying the first GP, resource 3 carrying the first RS and/or the second downlink control channel, resource 4 carrying the second GP, and resource 5 carrying the PUCCH and/or the second RS.

For example, if the first downlink control channel is a first PDCCH and the second downlink control channel is a second PDCCH, (1) in case 6 may be as shown in (i) of fig. 5.

For (2) in case 6, the DCI described in S302 may further be used to indicate a symbol occupied by the first GP and a symbol occupied by the second GP. That is, the DCI described in S302 may be further used to indicate a duration of a first GP and a duration of a second GP, assuming that the duration of the first GP is denoted as t₁The duration of the second GP is denoted t₂Then t is₁>0，t₂>0。

In addition, if the information carried on the other symbols includes the first RS, the DCI may further indicate a transmission method of the first RS. If the information carried on the other symbols includes the second RS, the DCI may further indicate a transmission method of the second RS. If the information carried on other symbols includes a PUCCH, the DCI may also indicate a transmission method of the PUCCH.

For (1) in case 6, the first RS may have N present₂Different transmission methods are adopted, N can exist in PUCCH and/or second RS₃Different transmission methods are used, then, in the DCI, an M-bit indication information may be added for indicating the configuration, whichIn

For (2) in case 6, the first RS may have N present₁Different transmission methods are adopted, N can exist in PUCCH and/or second RS₃Different transmission methods are adopted, and then, in the DCI, M bits of indication information can be added for indicating the configuration, wherein

Similarly, the second GP may also have a fixed form or have a variety of different forms. Accordingly, if the second GP exists in a plurality of different forms, the number of ResourceFlag needs to be increased in the DCI accordingly.

That is, a different form of the second GP may be indicated in the DCI with a different resource flag.

Optionally, as an embodiment, if information carried on other symbols in the subframe except for the symbol occupied by the first downlink control channel and the PDSCH includes a second GP, the DCI may be further configured to indicate a length of the second GP.

Optionally, as another embodiment, the DCI may also be used to indicate the length of the second GP. If the length of the second GP indicated by the DCI is 0, it indicates that the subframe does not carry the second GP.

As an understanding, resource 1, resource 2, and resource 3 in case 6 may be analogous to resource 1, resource 2, and resource 3 corresponding to the downlink subframes in

cases

1, 2, 4, and 5 above; resource 4 and resource 5 in case 6 may resemble resource 2 and resource 3 corresponding to the simultaneous uplink and downlink transmissions in cases 3 and 5 described above. That is, the case 6 may be considered as a combination of the above-described frame structure in which the downlink subframe is transmitted simultaneously with the uplink and downlink. Specifically, (1) in case 6 corresponds to a combination of cases 2 and 3, and (2) in case 6 corresponds to a combination of cases 1 and 3.

As another understanding, the above cases 1 to 6 can all be regarded as that the resources 1 to 5 shown in fig. 7 carry different information accordingly. Specifically, resource 1 carries a PDSCH, resource 2 carries a first GP or PDSCH, resource 3 carries a first RS and/or a second downlink control channel or PDSCH or does not exist, resource 4 carries a second GP or PDSCH, and resource 5 carries a PUCCH and/or a second RS or PDSCH.

In addition, for a more detailed description of this case 6, reference may be made to the related descriptions of the foregoing cases 1 to 5, which are not described herein again.

As can be seen, in cases 1 to 6 above, the DCI may be used to indicate the duration t of the first GP in the information carried on the other symbols₁Wherein t is₁0 or t₁>0; and/or the DCI is further used for indicating the duration t of a second GP in the information carried on the other symbols₂Wherein t is₂0 or t₂>0。

In addition, it can be understood that, for the cases as in fig. 5, diagram (a), diagram (c) and diagram (i), the first subframe structure may further include additional resources for carrying the third GP as a guard interval between the current subframe and the next subframe. Not in a row here.

Accordingly, it can be understood that in S302 in the embodiment of the present invention, the UE 20 may receive the first downlink portion transmitted by the base station 10 according to the first subframe structure.

If the first subframe structure includes the second downlink portion, UE 20 may receive the first downlink portion and the second downlink portion transmitted by base station 10 according to the first subframe structure.

If the first subframe structure comprises an uplink part, the method further comprises the following steps: the UE 20 may transmit the uplink portion to the base station 10 according to the first subframe structure.

That is, in S302, the UE 20 may receive according to the first subframe structure, or the UE 20 may receive and transmit according to the first subframe structure.

In the embodiment of the present invention, the base station 10 sends the DCI to the UE 20 through the DCI. Further, the base station 10 may transmit according to the DCI, and the UE 20 may receive according to the DCI. It can be understood that the positions and/or the number of the pilots in the configuration need to be adjusted according to the symbols occupied by the shared channel in the configuration, and a Resource Element (RE) mapping rule of the data needs to be adjusted. Specifically, the adjustment manner may be preset, or the adjustment manner may be configured by higher layer signaling or DCI.

Fig. 8 is a schematic diagram of a structural block diagram of a base station according to an embodiment of the present invention. The base station 80 shown in fig. 8 includes a determination unit 801, a transmission unit 802, and a reception unit 803.

The determining unit 801 is configured to determine a first subframe structure, where the first subframe structure includes any one of:

the first descending portion and the first guard interval GP,

a first descending section and a second descending section,

a first descending section, a first GP, and a second descending section,

a first downstream portion, a second GP, and an upstream portion,

a first downstream portion, a second GP, an upstream portion and a third GP,

a first descending part, a second GP and an ascending part,

the sending unit 802, configured to send the first downlink part according to the first subframe structure determined by the determining unit 801;

if the first subframe structure includes the second downlink part, the sending unit 802 is specifically configured to send the first downlink part and the second downlink part according to the first subframe structure determined by the determining unit 801;

if the first subframe structure includes the uplink portion, the receiving unit 803 is configured to receive the uplink portion according to the first subframe structure determined by the determining unit 801;

Optionally, the sending unit 802 is further configured to: transmitting indication information indicating that the first subframe structure is to be used

Optionally, the sending unit 802 is further configured to: and sending Downlink Control Information (DCI), wherein the DCI is carried in the first downlink control channel, and the DCI is used for indicating a part of or all channels and/or signals and/or symbols occupied by GP carried by the first subframe structure.

If the base station transmits, it is called a subframe, or the base station transmits and receives, it is called a subframe. The subframe includes at least a first downlink portion, i.e., includes a first downlink control channel and a PDSCH.

Optionally, the information carried on other symbols in the subframe except for the symbol occupied by the first downlink control channel and the PDSCH includes any one of the following:

the first GP is a first GP of the first GP,

the first RS and/or the second downlink control channel,

a first GP and a first RS and/or a second downlink control channel,

a second GP and the PUCCH and/or the second RS,

a first RS, a second GP, and a PUCCH and/or a second RS,

the first GP, the first RS, the second GP and the PUCCH and/or the second RS are/is provided;

wherein the second downlink control channel comprises a second PDCCH or a second ePDCCH or PHICH.

Optionally, the first downlink control channel and the PDSCH occupy all symbols of the subframe.

If the information carried by the other symbols includes the first RS, the DCI is further configured to indicate a sending method of the first RS; if the information carried by the other symbols includes the second RS, the DCI is further configured to indicate a sending method of the second RS; if the information carried by the other symbols includes the PUCCH, the DCI is further configured to indicate a transmission method of the PUCCH. Wherein the sending method comprises at least one of the following: the used transmitting or receiving beam, the length of the time dimension, and the occupied sub-carrier.

Optionally, as an embodiment, the DCI is further configured to indicate a duration t of a first GP in information carried on the other symbols₁Wherein t is₁0 or t₁>0; and/or the DCI is further used for indicating the duration t of a second GP in the information carried on the other symbols₂Wherein t is₂0 or t₂>0。

Specifically, for the configuration, reference may be made to the foregoing detailed description of the method embodiment portions in fig. 3 to fig. 7, which is not repeated here.

The determining unit 801 in fig. 8 may be implemented by a processor, the transmitting unit 802 may be implemented by a transmitter, and the receiving unit 803 may be implemented by a receiver. As shown in fig. 9, the base station 90 in fig. 9 includes a processor 901, a receiver 902, a transmitter 903, and a memory 904.

A memory 904 for storing codes executed by the processor 901, and the like.

The various components in the base station 90 are coupled together by a bus system 905, wherein the bus system 905 includes, in addition to a data bus, a power bus, a control bus, and a status signal bus.

Fig. 10 is a schematic structural diagram of a system chip of the embodiment of the present invention. The system chip 100 of fig. 10 includes an input interface 1010, an output interface 1020, at least one processor 1030, and a memory 1040, where the input interface 1010, the output interface 1020, the processor 1030, and the memory 1040 are connected by a bus 1050, the processor 1030 is configured to execute codes in the memory 1040, and when the codes are executed, the processor 1030 implements the method performed by the base station in fig. 3 to 7.

It is to be understood that the input interface 1010 and the output interface 1020 in fig. 10 can also be implemented by one input/output interface. The invention is not limited in this regard.

The base station 80 shown in fig. 8, the base station 90 shown in fig. 9, or the system chip 100 shown in fig. 10 can be used to implement each process implemented by the base station in the foregoing method embodiments of fig. 3 to fig. 7, and for avoiding repetition, details are not repeated here.

Fig. 11 is a schematic flow chart of a method for uplink transmission according to an embodiment of the present invention. The method shown in fig. 11 includes:

s111, the base station 10 determines a first subframe structure.

The first subframe structure comprises any one of:

(0) the first upstream portion is a portion of the first upstream portion,

(1) the first guard interval GP and the first upstream part,

(2) a second upstream portion and a first upstream portion,

(3) a second upstream portion, a first GP, and a first upstream portion,

(4) a second upstream portion, a first GP, a first upstream portion and a third GP,

(5) a downlink portion, a second GP, and a first uplink portion,

(6) a downlink portion, a second GP, a first uplink portion and a third GP,

(7) a downlink part, a second GP, a second uplink part and a first uplink part,

(8) a downlink part, a second GP, a second uplink part, a first GP and a first uplink part,

(9) the system comprises a downlink part, a second GP, a second uplink part, a first GP, a first uplink part and a third GP.

The first uplink part is a PUSCH, the second uplink part is a PUCCH and/or a first RS, the downlink part is a second downlink control channel and/or a second RS, and the second downlink control channel comprises a second PDCCH or a second ePDCCH or a PHICH.

S112, the base station 10 receives or receives and transmits according to the first subframe structure.

That is, the base station 10 receives channels and/or signals according to the first subframe structure, or the base station 10 receives and transmits channels and/or signals according to the first subframe structure.

Specifically, the base station 10 receives the first uplink part according to the first subframe structure. If the first subframe structure includes the second uplink portion, the receiving the first uplink portion includes: receiving the first uplink portion and the second uplink portion. If the first subframe structure includes the downlink portion, the method further comprises: the base station transmits the downlink portion according to a first subframe structure.

It is understood that if the first subframe structure is (0) - (1) above, the base station 10 receives the first uplink portion in S302. If the first subframe structure is (2) - (4) above, the base station 10 receives the first uplink part and the second uplink part in S302. If the first subframe structure is (5) - (6) above, the base station 10 receives the first uplink portion and transmits the downlink portion in S302. If the first subframe structure is (7) described above, the base station 10 receives the first uplink part and the second uplink part, and transmits the downlink part in S302.

Optionally, before S302, the method may include: a base station 10 sends downlink control information DCI for uplink scheduling, where the DCI is carried in a first downlink control channel, and the DCI is used to indicate a symbol occupied by part or all of channels and/or signals and/or GPs carried by using the first subframe structure; wherein the first downlink control channel is a first PDCCH or a first ePDCCH.

The channels herein may include a second downlink control channel, PUCCH, PUSCH. The signal may include a first RS and a second RS. The GP may include a first GP, a second GP, and a third GP.

Optionally, if the first subframe structure includes a PUCCH, the DCI is further configured to indicate a transmission method of the PUCCH. If the first subframe structure includes a first RS, the DCI is further configured to indicate a transmission method of the first RS.

Optionally, if the first subframe structure includes a second downlink control channel, the DCI is further configured to indicate a transmission method of the second downlink control channel. If the first subframe structure includes a second RS, the DCI is further configured to indicate a transmission method of the second RS.

Wherein the sending method comprises at least one of the following: the used transmitting or receiving beams, the used resource mapping mode and the occupied sub-carriers.

In addition, optionally, if the first subframe structure includes a first GP, the DCI is further configured to indicate a duration t of the first GP₁Wherein t is₁0 or t₁>0. And/or, if the first subframe structure includes a second GP, the DCI is further configured to indicate a duration t of the second GP₂Wherein t is₂0 or t₂>0. And/or, if the first subframe structure includes a third GP, the DCI is further to indicate a duration t3 of the third GP, wherein t3 ═ 0 or t3>0。

Optionally, the symbols occupied by the information carried by the first subframe structure may at least include symbols occupied by PUSCH.

For example, if the first subframe structure is (1) described above, the DCI may indicate the number of symbols occupied by the PUSCH. As another example, the DCI may indicate the number of symbols occupied by the PUSCH and the number of symbols occupied by the first GP.

In this embodiment of the present invention, the subframe received, or received and transmitted by the base station 10 in S112 may be referred to as a target subframe.

In the embodiment of the present invention, the symbols occupied by the PUSCH may include symbols occupied by the PUSCH and a DeModulation Reference Signal (DMRS) thereof, and it should be noted that, for simplicity and convenience of description, the following embodiments of the present invention all use the "symbols occupied by the PUSCH" to represent "the PUSCH and the symbols occupied by the DMRS thereof. And the symbols occupied by the PUSCH may include the position and number of the symbols occupied by the PUSCH. The symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

And the information carried on other symbols except the symbols occupied by the PUSCH in the subframe comprises channels and/or signals and/or GP. It is understood that after S111, the base station 10 may indicate the information carried on the other symbol through the indication information.

Wherein, information carried on other symbols except for the symbol occupied by the PUSCH in the subframe includes any one of the following: a first RS of a first GP beam sweep; a first GP; a first RS and a first GP; downlink control information, a second GP and a first RS; downlink control information, a second GP, a first RS and a first GP; downlink control information and a second GP. (1) A first GP; (2) a Physical Uplink Control Channel (PUCCH) and/or a first RS; (3) a PUCCH and/or a first RS and a first GP; (4) a second downlink control channel and/or a second RS and a second GP; (5) a second downlink control channel and/or a second RS, a second GP, a PUCCH and/or a first RS; (6) a second downlink control channel and/or a second RS, a second GP, a PUCCH and/or a first RS and a first GP. Wherein the second downlink control channel comprises a second PDCCH or a second ePDCCH or PHICH.

The PHICH is used to indicate feedback information of an uplink subframe prior to the subframe, for example, the feedback information may be an Acknowledgement (ACK) or a Negative Acknowledgement (NACK).

And when the information carried by the other symbols simultaneously comprises the PUCCH and the first RS, the PUCCH and the first RS multiplex the same resource. And when the information carried by the other symbols simultaneously comprises a second downlink control channel and a second RS, the second downlink control channel and the second RS multiplex the same resource.

In the embodiment of the present invention, the "PUCCH and/or the first RS" includes the following three cases: (1) PUCCH, (2) first RS, (3) multiplexed PUCCH and first RS. In the embodiment of the present invention, the "second downlink control channel and/or the second RS" includes the following three situations: (1) a second downlink control channel, (2) a second RS, (3) a multiplexed second downlink control channel and a second RS.

That is to say, information carried on other symbols in the subframe except for the symbol occupied by the PUSCH may be the PUCCH and/or the first RS, or the first GP, or the PUCCH and/or the first RS and the first GP. The information carried on the other symbols except the symbol occupied by the PUSCH in the subframe may be the first GP, or the second downlink control channel and/or the second RS and the second GP. The information carried on the other symbols except the symbol occupied by the PUSCH in the subframe may be a second downlink control channel and/or a second RS, a second GP, and a PUCCH and/or a first RS, or the second downlink control channel and/or the second RS, the second GP, the PUCCH and/or the first RS and the first GP.

case 1: the subframe is an uplink subframe, and information carried on other symbols except the symbol occupied by the PUSCH in the uplink subframe comprises a PUCCH and/or a first RS and a first GP.

Specifically, if the base station 10 determines that the uplink subframe needs to be beam-scanned, and the analog beam used by the base station 10 to receive the PUSCH is not the same as the analog beam of the first RS, it may be determined that the configuration is the case 1. That is, the information carried on the other symbols includes the first RS and the first GP. Here, since a switching time is required between different analog beams, a first GP needs to be configured between a first RS and a PUSCH.

Specifically, if the base station 10 determines that the uplink subframe needs to transmit the PUCCH, and the analog beam used for PDSCH transmission in the downlink subframe is different from the analog beam of the PUCCH. At this time, it may be determined that the configuration is the case 1. That is, the information carried on the other symbols includes the PUCCH and the first GP. Here, since a switching time is required between different analog beams, a first GP needs to be configured between the PDSCH and the PUCCH.

Specifically, the base station 10 may include the PUCCH and the first RS simultaneously in the subframe, and the PUCCH multiplexes the same resource with the first RS.

The resources of the downlink subframe may be divided into 3 parts in time division, as shown in fig. 12, which are resource 1, resource 2, and resource 3, respectively.

It can be seen that case 1 is equivalent to resource 1 in fig. 12 carrying the PUCCH and/or the first RS, resource 2 carrying the first GP, and resource 3 carrying the PUSCH. This case 1 may be, for example, as shown in (a) of fig. 13.

The DCI may further be used to indicate a duration of a first GP, assuming the duration of the first GP is denoted as t₁Then for this case 1, t₁>0。

Further, the uplink DCI may also be used to indicate a transmission method of the PUCCH and/or the first RS. Taking the first RS as an example, the first RS can have N₁Different transmission methods are used. Here, N₁Different transmission methods can be recorded as 1 st to Nth₁A method of transmitting is provided.

The sending method comprises at least one of the following steps: the used transmitting beam or receiving beam, the length of the time dimension, and the occupied sub-carrier. That is, the transmission method relates to the used transmission beam or reception beam, the time dimension length, the occupied subcarriers, and the like, and different transmission methods refer to different used transmission beams or reception beams, or different transmission methods refer to different time dimension lengths, or different transmission methods refer to different used transmission beams or reception beams and different time dimension lengths, or different used transmission beams or reception beams and different occupied subcarriers, and the like.

Case 2: the subframe is an uplink subframe, and information carried on other symbols except the symbol occupied by the PUSCH in the uplink subframe comprises a PUCCH and/or a first RS.

Specifically, if the base station 10 determines that the uplink subframe needs to be beam-scanned, and the analog beam used by the base station to receive the PUSCH is the same as the analog beam of the first RS, it may be determined that the configuration is case 2.

Specifically, if the base station 10 determines that the uplink subframe needs to transmit the PUCCH, and the analog beam used by the base station to receive the PUSCH is the same as the analog beam of the PUCCH, it may be determined that the configuration is the case 2.

It can be seen that case 2 is equivalent to resource 1 in fig. 12 carrying PUCCH and/or first RS, and resources 2 and 3 carrying PUSCH. Case 2 may be as shown in (b) of fig. 13.

In conjunction with the description of case 1, the DCI may be further used to indicate a symbol occupied by the first GP. Alternatively, the DCI may be used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁Then here, t₁＝0。

As can be seen, the DCI may further be used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁，t₁>0 or t₁0. Accordingly, the UE 20 may determine that it is case 1 (t) according to the duration of the first GP₁>0) Or case 2 (t)₁＝0)。

Further, the uplink DCI may also be used to indicate a transmission method of the PUCCH and/or the first RS. Taking the first RS as an example, the first RS in case 2 can have N₂Different transmission methods are used. Here, N₂The different transmission methods can be recorded as Nth₁+1 to Nth₁+N₂A method of transmitting is provided.

In case 2, since the analog beam for receiving the PUSCH is the same as the analog beam for the PUCCH and/or the first RS, the switching time of the analog beam is not required, and thus, the PUSCH can be carried on resource 2, and uplink transmission can be performed using the resource where the original guard interval is located, so that the resource can be fully utilized, and uplink throughput can be improved. Meanwhile, the uplink DCI can indicate the sending methods of different PUCCHs and/or first RSs, so that the receiving analog beam switching between TTIs is supported, that is, the dynamic configuration of TTI level can be supported, and the flexibility of uplink information sending is increased.

Case 3: the information carried on other symbols except the symbol occupied by the PUSCH in the subframe includes second downlink control information and/or a second RS and a second GP, where the second downlink control information includes a second PDCCH or a second ePDCCH or a PHICH.

That is, the information carried on the other symbols includes the second downlink control information and the second GP; or, the information carried on the other symbols includes a second RS and a second GP; or, the information carried on the other symbols includes second downlink control information, a second RS, and a second GP, where the second downlink control information and the second RS multiplex the same resource.

For transmission and reception of a subframe that may include uplink and downlink transmissions simultaneously, the downlink transmission in the subframe may include a second downlink control channel (i.e., a second PDCCH or a second ePDCCH or a PHICH) and/or a downlink pilot (i.e., a second RS).

Specifically, if the base station 10 determines that the subframe includes uplink and downlink transmissions, it may be determined that the configuration is case 3. Since a switching time is required between the uplink and the downlink, the second GP needs to be configured between the second downlink control information and/or the second RS and the PUSCH.

It can be seen that, in fig. 12, the case 3 is equivalent to that the resource 1 carries the second downlink control information and/or the second RS, the resource 2 carries the second GP, and the resource 3 carries the PUSCH.

For example, the second downlink control channel is a second PDCCH, and case 3 may be as shown in fig. 13 (c).

The DCI may further be used to indicate a duration of a second GP, assuming the duration of the second GP is denoted as t₂Then for this case 3, t₂>0。

Further, the uplink DCI may also be used to indicate second downlink control information and/or a transmission method of a second RS. Taking the second RS as an example, the second RS in case 3 can have N₃Different transmission methods are used. Here, N₃The different transmission methods can be recorded as Nth₁+N₂+1 to Nth₁+N₂+N₃A method of transmitting is provided.

Case 4: the subframe is an uplink subframe, and information carried on other symbols except the symbol occupied by the PUSCH in the uplink subframe comprises a first GP.

Specifically, if the base station 10 determines that the uplink subframe does not need to be beam-scanned, and the previous subframe of the uplink subframe is also an uplink subframe, and the analog beam used by the uplink subframe is different from the analog beam used by the previous uplink subframe, it may be determined that the configuration is case 4.

It can be seen that case 4 is equivalent to resource 1 merging into resource 3 in fig. 12, as shown in fig. 14, resource 1 and resource 3 carry PUSCH, and resource 2 carries the first GP. Alternatively, this situation can also be understood as: resource 1 does not exist or resource 2 is time-domain shifted to the head of the subframe. Case 4 may be, for example, as shown in (d) of fig. 13.

It can be understood that resource 2 in fig. 14 carries the first GP because the analog beams of two adjacent uplink subframes are different and require switching time.

Accordingly, the DCI may be used to indicate the duration of the first GP, assuming that the duration of the first GP is denoted as t₁Then for this case 4, t₁>0。

Optionally, for this case 4, DCI may also be used to indicate the duration t of the second GP₂And t is₂＝0。

Case 5: PUSCH occupies all symbols of the subframe. That is, there is no other symbol in the subframe except for the symbol occupied by the PUSCH.

That is, information carried on other symbols except for the symbol occupied by the PUSCH in the subframe is null. Or, the subframe carries no other information except for the PUSCH.

It can be seen that case 5 is equivalent to resource 1, resource 2 and resource 3 in fig. 12 all used to carry PUSCH, as shown in fig. 13 (e).

Specifically, as an example, if the subframe is an uplink subframe, and the subframe does not need to be beam-scanned and GP does not need to be left between subframes, it may be determined that the case 5 is configured.

Therefore, the resource 1 and the resource 2 can bear the PUSCH, namely, the resource where the original guard interval is located is fully utilized for uplink transmission, and the resource where the original PUCCH and/or the first RS is located is fully utilized for uplink transmission, so that the resource can be fully utilized, and the uplink throughput is improved.

Specifically, as another example, if the subframe does not need downlink transmission in resource 1, that is, resource 1 does not transmit downlink control information, it may be determined that the case 5 is configured.

For example, the first RS for beam scanning may be transmitted periodically, which may be X subframes. It is understood that some subframes need not transmit the first RS, and some subframes need not transmit the first RS.

In this way, the PUSCH can be carried on the resource 1 and the resource 2, that is, the resource where the original guard interval is located is fully utilized for uplink transmission, and the resource where the original downlink transmission (the second downlink control information and/or the second RS) is fully utilized for uplink transmission, so that the resource can be fully utilized, and the uplink throughput can be improved.

Optionally, for this case 5, DCI may also be used to indicate the duration t of the first GP₁And t is₁0. Alternatively, for this case 5, DCI may also be used to indicate the duration t of the second GP₂And t is₂0. Alternatively, for this case 5, the DCI described in S111 may also be used to indicate the duration t of the first GP₁And duration t of the second GP₂And t is₁＝t₂＝0。

For the above-described cases 1 to 5, optionally, as an embodiment, a Resource Flag (Resource Flag) may be added to the uplink DCI to indicate the above-described various cases.

For example, the following table five is given by N₁＝4，N₂＝2，N₃The description will be given by way of example 3.

Watch five

Wherein, the resource identifiers 0-3 in table five correspond to case 1 above, the resource identifiers 4-5 correspond to case 2 above, the resource identifiers 8-10 correspond to case 3 above, the resource identifier 6 corresponds to case 4 above, and the resource identifier 7 corresponds to case 5 above.

Thus, in the embodiment of the present invention, the corresponding configuration may be indicated by resource flag in the uplink DCI, and further, in S112, the base station 10 may transmit according to the DCI, and accordingly, the UE 20 may receive according to the DCI. Dynamic configuration can be realized, and the flexibility of uplink transmission is increased.

For example, if the subframe is determined to be an uplink subframe. Then, a resource flag of M bits (bit) may be added to the uplink DCI to indicate the corresponding configuration, where the configuration is indicated

Here, the first and second liquid crystal display panels are,

meaning rounding up. The sixth in the following table is N₁＝4，N₂When M is 2, M is 3.

Watch six

That is, different forms of the first GP may be indicated with different ResourceFlag in the uplink DCI.

Optionally, as an embodiment, if information carried on other symbols in the subframe except for the symbol occupied by the PUSCH includes the first GP, the uplink DCI may be further configured to indicate a length of the first GP.

Optionally, as another embodiment, the uplink DCI may also be used to indicate a length of the first GP. If the length of the first GP indicated by the uplink DCI is 0, it indicates that the subframe does not carry the first GP.

Taking the time domain length as an example, the embodiment of the present invention does not limit the time domain length of the first GP carried by the resource 2. For example, the first GP may be of fixed time domain length, each of 2 OFDM symbols. For example, the first GP may have a dynamically variable time domain length, and the time domain length occupied by the first GP may be 1 OFDM symbol, or 1.5 OFDM symbols. The number of OFDM symbols occupied by the first GP may also be indicated by resource flag in the uplink DCI.

For example, if it has been determined that the subframe contains both uplink and downlink transmissions. Then, a resource flag of M bits (bit) may be added to the uplink DCI to indicate the corresponding configuration, where the configuration is indicated

The seventh table below is N₃When M is 2, the corresponding configuration is 3.

Watch seven

Wherein, the resource identifiers 0-2 in the seventh table correspond to the above case 3, and the resource identifier 3 corresponds to the above case 5. The resource identification column is located in brackets, and M is 00-11 of 2 bits corresponding to 0-3.

It can be seen that, in this embodiment, when downlink transmission is not needed, the original guard interval and the resource where the downlink transmission is located may be fully utilized to perform uplink transmission, and at the same time, different downlink sending modes are also supported to be indicated. Since the indication information is carried in the uplink DCI, TTI-level dynamic configuration can be supported, and the flexibility of sending uplink information (PUSCH) and PDCCH/ePDCCH/second RS is increased.

Based on the above description of cases 1 to 5, a case of simultaneously including the PUCCH and/or the first RS and the second downlink control information and/or the second RS may also be considered. Specifically, the following cases are shown:

case 6: the information carried on the other symbols except the symbol occupied by the PUSCH in the subframe comprises any one of the following: (1) the second downlink control information and/or the second RS, the second GP and the PUCCH and/or the first RS; (2) and the second downlink control information and/or the second RS, the second GP, the PUCCH and/or the first RS and the first GP. Wherein the second downlink control information comprises a second PDCCH, a second ePDCCH, or a PHICH.

The resources of the subframe may be time-divisionally divided into 5 portions, as shown in fig. 15, which are resource 1, resource 2, resource 3, resource 4, and resource 5, respectively.

As can be seen, in case 6, (1) is equivalent to resource 1 carrying the second downlink control information and/or the second RS, resource 2 carrying the second GP, resource 3 carrying the PUCCH and/or the first RS, and resource 4 and resource 5 carrying the PUSCH.

For example, if the second downlink control channel is the second PDCCH, (1) in case 6 may be as shown in (f) of fig. 13.

For (1) in case 6, the DCI may further be used to indicate a duration of a second GP, assuming that the duration of the second GP is denoted as t₂，t₂>0. Optionally, the DCI may be further used to indicate a duration of the first GP, assuming that the duration of the first GP is denoted as t₁And t is₁＝0。

In case 6, (2) is equivalent to resource 1 carrying the second downlink control information and/or the second RS, resource 2 carrying the second GP, resource 3 carrying the PUCCH and/or the first RS, resource 4 carrying the first GP, and resource 5 carrying the PUSCH.

For example, if the second downlink control channel is the second PDCCH, (1) in case 6 may be as shown in (g) of fig. 13.

For (2) in case 6, the DCI may further be to indicate a duration of a first GP and a duration of a second GP, assuming that the duration of the first GP is denoted as t₁The duration of the second GP is denoted t₂Then t is₁>0，t₂>0。

In addition, if the information carried on the other symbols includes the first RS, the DCI may further indicate a transmission method of the first RS. If the information carried on the other symbols includes the second RS, the DCI may further indicate a transmission method of the second RS. If the information carried on other symbols includes a PUCCH, the DCI may also indicate a transmission method of the PUCCH. If the information carried on the other symbols includes the second downlink control channel, the DCI may further indicate a transmission method of the second downlink control channel.

For (1) in case 6, N may be present for the PUCCH and/or the first RS₂Different sending methods are adopted, and N can exist in the second downlink control information and/or the second RS₃Different transmission methods are adopted, then, in the uplink DCI, M bits of indication information can be added for indicating the configuration, wherein

For (2) in case 6, N may be present for the PUCCH and/or the first RS₁Different sending methods are adopted, and N can exist in the second downlink control information and/or the second RS₃Different transmission methods are adopted, then, in the uplink DCI, M bits of indication information can be added for indicating the configuration, wherein

Similarly, the second GP may also have a fixed form or have a variety of different forms. Accordingly, if the second GP has a plurality of different forms, the number of resource flags needs to be increased in the uplink DCI accordingly.

That is, a different form of the second GP may be indicated with a different ResourceFlag in the uplink DCI.

Optionally, as an embodiment, if information carried on other symbols in the subframe except for the symbol occupied by the PUSCH includes a second GP, the uplink DCI may be further configured to indicate a length of the second GP.

Optionally, as another embodiment, the uplink DCI may also be used to indicate a length of the second GP. If the length of the second GP indicated by the uplink DCI is 0, it indicates that the subframe does not carry the second GP.

As an understanding, resource 3, resource 4, and resource 5 in case 6 may resemble resource 1, resource 2, and resource 3 corresponding to the uplink subframes in

cases

1, 2, 4, and 5 above; resource 1 and resource 2 in case 6 can be analogized to resource 1 and resource 2 corresponding to the simultaneous uplink and downlink transmission in cases 3 and 5 described above. That is, the case 6 may be considered as a combination of the above-described frame structure in which the uplink subframe and the uplink and downlink are simultaneously transmitted. Specifically, (1) in case 6 corresponds to a combination of cases 2 and 3, and (2) in case 6 corresponds to a combination of cases 1 and 3.

As another understanding, the above cases 1 to 6 can all be regarded as that the resources 1 to 5 shown in fig. 15 carry different information accordingly. Specifically, resource 1 carries a second downlink control channel and/or a second RS, or a PUSCH, resource 2 carries a second GP or a PUSCH, resource 3 carries a PUCCH and/or a first RS, or a PUSCH does not exist, resource 4 carries a first GP or a PUSCH, and resource 5 carries a PUSCH.

In addition, it can be understood that, for the cases as in fig. 13, diagram (a), diagram (c) and diagram (g), additional resources for carrying a third GP may also be included in the first subframe structure as a guard interval between the current subframe and the next subframe. Not in a row here.

Accordingly, it can be understood that in S112 in the embodiment of the present invention, the UE 20 may transmit the first uplink portion to the base station 10 according to the first subframe structure.

If the first subframe structure includes the second uplink portion, the UE 20 may receive a transmission of the first uplink portion and the second uplink portion to the base station 10 according to the first subframe structure.

If the first subframe structure includes a downlink portion, further comprising: UE 20 may receive the downlink portion transmitted by base station 10 according to the first subframe structure.

That is, in S112, the UE 20 may transmit according to the first subframe structure, or the UE 20 may transmit and receive according to the first subframe structure.

In the embodiment of the present invention, the base station 10 sends the configuration to the UE 20 through the uplink DCI. Further, the UE 20 may transmit according to the configuration, and the base station 10 may receive according to the configuration. It can be understood that the positions and/or the number of the pilots in the configuration need to be adjusted according to the symbols occupied by the shared channel in the configuration, and a Resource Element (RE) mapping rule of the data needs to be adjusted. Specifically, the adjustment manner may be preset, or the adjustment manner may be configured by higher layer signaling or DCI.

Fig. 16 is a block diagram of a base station according to an embodiment of the present invention. The base station 160 shown in fig. 16 includes a determination unit 161, a reception unit 162, and a transmission unit 163.

A determining unit 161, configured to determine a first subframe structure, where the first subframe structure includes any one of:

the first guard interval GP and the first upstream part,

a second upstream portion and a first upstream portion,

a second upstream portion, a first GP, and a first upstream portion,

a second upstream portion, a first GP, a first upstream portion and a third GP,

a downlink portion, a second GP, and a first uplink portion,

a downlink portion, a second GP, a first uplink portion and a third GP,

a downlink part, a second GP, a second uplink part and a first uplink part,

the receiving unit 162, configured to receive the first uplink part according to the first subframe structure determined by the determining unit 161;

if the first subframe structure includes the second uplink portion, the receiving unit 162 is specifically configured to receive the first uplink portion and the second uplink portion according to the first subframe structure determined by the determining unit 161;

if the first subframe structure comprises the downlink portion, the sending unit 163 is configured to: transmitting the downlink part according to the first subframe structure determined by the determining unit 161;

Optionally, the sending unit 163 is further configured to: transmitting indication information indicating that the first subframe structure is to be used.

Optionally, the sending unit 163 is further configured to: sending Downlink Control Information (DCI) for uplink scheduling, wherein the DCI is carried in a first downlink control channel and is used for indicating a part of or all channels and/or signals and/or symbols occupied by GP carried by using the first subframe structure; wherein the first downlink control channel is a first PDCCH or a first ePDCCH.

If the subframe is called as received by the base station, or the subframe is called as received and transmitted by the base station. The subframe includes at least a first uplink portion, i.e., includes PUSCH.

Optionally, the information carried on the other symbols except the symbol occupied by the PUSCH in the subframe includes any one of the following:

the first GP is a first GP of the first GP,

the PUCCH and/or the first RS,

the PUCCH and/or the first RS and the first GP,

a second downlink control channel and/or a second RS and a second GP,

a second downlink control channel and/or a second RS, a second GP, and a PUCCH and/or a first RS,

a second downlink control channel and/or a second RS, a second GP, a PUCCH and/or a first RS and a first GP;

Optionally, the PUSCH occupies all symbols of the subframe.

Optionally, if the information carried on the other symbols includes the PUCCH, the DCI is further configured to indicate a transmission method of the PUCCH; if the information carried by the other symbols includes the first RS, the DCI is further configured to indicate a sending method of the first RS; if the information carried by the other symbols includes the second downlink control channel, the DCI is further configured to indicate a sending method of the second downlink control channel; if the information carried on the other symbols includes the second RS, the DCI is further configured to indicate a transmission method of the second RS.

Wherein the sending method comprises at least one of the following: the used transmitting or receiving beam, the length of the time dimension, and the occupied sub-carrier.

Optionally, the DCI is further used to indicateDuration t of a first GP in the information carried on the other symbols₁Wherein t is₁0 or t₁>0; and/or the DCI is further used for indicating the duration t of a second GP in the information carried on the other symbols₂Wherein t is₂0 or t₂>0。

Specifically, for the configuration, reference may be made to the foregoing detailed description of the method embodiment portion in fig. 11 to fig. 15, and details are not repeated here.

The determining unit 161 in fig. 16 may be implemented by a processor, the receiving unit 162 may be implemented by a receiver, the transmitting unit 163 may be implemented by a transmitter, and the receiving unit 162 may be implemented by a receiver, as shown in fig. 17, and the base station 170 in fig. 17 includes a processor 171, a receiver 172, a transmitter 173, and a memory 174.

And a memory 174 for storing codes and the like executed by the processor 171.

The various components in the base station 170 are coupled together by a bus system 175, wherein the bus system 175 includes a power bus, a control bus, and a status signal bus in addition to a data bus.

Fig. 18 is a schematic structural diagram of a system chip of the embodiment of the present invention. The system chip 180 of fig. 18 includes an input interface 1810, an output interface 1820, at least one processor 1830, and a memory 1840, the input interface 1810, the output interface 1820, the processor 1830, and the memory 1840 are connected via a bus 1850, the processor 1830 is configured to execute code in the memory 1840, and when the code is executed, the processor 1830 implements the method of fig. 11-15 performed by a base station.

The base station 160 shown in fig. 16, the base station 170 shown in fig. 17, or the system chip 180 shown in fig. 18 can be used to implement each process implemented by the base station in the foregoing method embodiments of fig. 11 to fig. 15, and for avoiding repetition, details are not repeated here.

It is understood that the processor in the embodiments of the present invention may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of data transmission, comprising:

the first, lower, portion of the column,

the first descending portion and the first guard interval GP,

a first descending section and a second descending section,

a first descending section, a first GP, and a second descending section,

a first downstream portion, a second GP, and an upstream portion,

a first downstream portion, a second GP, an upstream portion and a third GP,

a first descending part, a second GP and an ascending part,

2. The method of claim 1, wherein prior to said transmitting the first downlink portion, further comprising:

the base station sends indication information, and the indication information is used for indicating that the first subframe structure is to be used.

3. The method of claim 1 or 2, wherein the sending the first downlink portion comprises:

and the base station sends downlink control information DCI, wherein the DCI is carried in the first downlink control channel, and the DCI is used for indicating part or all channels and/or signals and/or symbols occupied by GP carried by the first subframe structure.

4. The method of claim 3, wherein if the first subframe structure comprises a first RS, the DCI is further configured to indicate a transmission method of the first RS.

5. The method of claim 3, wherein if the first subframe structure includes a second downlink control channel, the DCI is further configured to indicate a transmission method of the second downlink control channel.

6. The method of claim 4, wherein the sending method comprises at least one of:

the used transmitting or receiving beams, the used resource mapping mode and the occupied sub-carriers.

7. The method of claim 3,

if the first subframe structure includes a first GP, the DCI is further configured to indicate a duration t of the first GP₁Wherein t is₁0 or t₁>0; and/or the presence of a gas in the gas,

if the first subframe structure includes a second GP, the DCI is further configured to indicate a duration t of the second GP₂Wherein t is₂0 or t₂>0; and/or the presence of a gas in the gas,

if the first subframe structure includes a third GP, the DCI is further to indicate a duration t3 of the third GP, where t3 ═ 0 or t3> 0.

8. A method of data transmission, comprising:

the first upstream portion is a portion of the first upstream portion,

the first guard interval GP and the first upstream part,

a second upstream portion and a first upstream portion,

a second upstream portion, a first GP, and a first upstream portion,

a second upstream portion, a first GP, a first upstream portion and a third GP,

a downlink portion, a second GP, and a first uplink portion,

a downlink portion, a second GP, a first uplink portion and a third GP,

a downlink part, a second GP, a second uplink part and a first uplink part,

9. The method of claim 8, further comprising, prior to said receiving said first uplink portion:

10. The method according to claim 8 or 9, further comprising, prior to said receiving said first uplink portion:

the base station sends Downlink Control Information (DCI) for uplink scheduling, wherein the DCI is carried in a first downlink control channel and is used for indicating a part of or all channels and/or signals and/or symbols occupied by GP carried by using the first subframe structure;

wherein the first downlink control channel is a first PDCCH or a first ePDCCH.

11. The method of claim 10,

if the first subframe structure comprises a PUCCH, the DCI is also used for indicating a sending method of the PUCCH;

if the first subframe structure includes a first RS, the DCI is further configured to indicate a transmission method of the first RS.

12. The method of claim 10,

if the first subframe structure comprises a second downlink control channel, the DCI is further used for indicating a sending method of the second downlink control channel;

if the first subframe structure includes a second RS, the DCI is further configured to indicate a transmission method of the second RS.

13. The method of claim 11, wherein the sending method comprises at least one of:

14. The method of claim 10,

15. A base station, comprising: a determining unit, a transmitting unit and a receiving unit,

the determining unit is configured to determine a first subframe structure, where the first subframe structure includes any one of:

the first, lower, portion of the column,

the first descending portion and the first guard interval GP,

a first descending section and a second descending section,

a first descending section, a first GP, and a second descending section,

a first downstream portion, a second GP, and an upstream portion,

a first downstream portion, a second GP, an upstream portion and a third GP,

a first descending part, a second GP and an ascending part,

the sending unit is configured to send the first downlink part according to the first subframe structure determined by the determining unit;

if the first subframe structure includes the second downlink portion, the sending unit is specifically configured to send the first downlink portion and the second downlink portion according to the first subframe structure determined by the determining unit;

if the first subframe structure comprises the uplink portion, the receiving unit is configured to receive the uplink portion according to the first subframe structure determined by the determining unit;

16. The base station of claim 15, wherein the sending unit is further configured to:

transmitting indication information indicating that the first subframe structure is to be used.

17. The base station according to claim 15 or 16, wherein the sending unit is further configured to:

and sending Downlink Control Information (DCI), wherein the DCI is carried in the first downlink control channel, and the DCI is used for indicating a part of or all channels and/or signals and/or symbols occupied by GP carried by the first subframe structure.

18. The base station of claim 17, wherein if the first subframe structure includes a first RS, the DCI is further configured to indicate a transmission method of the first RS.

19. The base station of claim 17, wherein if the first subframe structure includes a second downlink control channel, the DCI is further configured to indicate a transmission method of the second downlink control channel.

20. The base station of claim 18, wherein the transmission method comprises at least one of:

21. The base station of claim 17,

22. A base station, comprising: a determining unit, a transmitting unit and a receiving unit,

the first upstream portion is a portion of the first upstream portion,

the first guard interval GP and the first upstream part,

a second upstream portion and a first upstream portion,

a second upstream portion, a first GP, and a first upstream portion,

a second upstream portion, a first GP, a first upstream portion and a third GP,

a downlink portion, a second GP, and a first uplink portion,

a downlink portion, a second GP, a first uplink portion and a third GP,

a downlink part, a second GP, a second uplink part and a first uplink part,

the receiving unit is configured to receive the first uplink part according to the first subframe structure determined by the determining unit;

if the first subframe structure includes the second uplink portion, the receiving unit is specifically configured to receive the first uplink portion and the second uplink portion according to the first subframe structure determined by the determining unit;

if the first subframe structure comprises the downlink portion, the sending unit is configured to: transmitting the downlink part according to the first subframe structure determined by the determining unit;

23. The base station of claim 22, wherein the sending unit is further configured to:

24. The base station of claim 22, wherein the sending unit is further configured to:

sending Downlink Control Information (DCI) for uplink scheduling, wherein the DCI is carried in a first downlink control channel and is used for indicating a part of or all channels and/or signals and/or symbols occupied by GP carried by using the first subframe structure;

wherein the first downlink control channel is a first PDCCH or a first ePDCCH.

25. The base station of claim 24,

26. The base station according to claim 24 or 25,

27. The base station of claim 25, wherein the transmission method comprises at least one of:

28. The base station of claim 24,