CN107426818B - Signal transmission method, base station, terminal equipment and system - Google Patents
Signal transmission method, base station, terminal equipment and system Download PDFInfo
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- CN107426818B CN107426818B CN201610350265.3A CN201610350265A CN107426818B CN 107426818 B CN107426818 B CN 107426818B CN 201610350265 A CN201610350265 A CN 201610350265A CN 107426818 B CN107426818 B CN 107426818B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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Abstract
The invention discloses a signal transmission method, a base station, terminal equipment and a system, wherein the method comprises the following steps: selecting a downlink transmission frame, and determining a first protection period GP in the downlink transmission frame; setting at least one downlink signal in the first GP; and sending the downlink transmission frame to terminal equipment.
Description
Technical Field
The present invention relates to transmission management technologies in the field of communications, and in particular, to a signal transmission method, a base station, a terminal device, and a system.
Background
The 3GPP has specified that standardization work for 5G will be initiated in 2016 and has preliminarily planned to submit technical solutions for 3 5G typical scenarios to the ITU in 2019. In order to effectively solve the requirement of 5G service diversity, some companies in the industry currently propose a frame structure (Self-contained), as shown in fig. 1, that is, uplink and downlink control are contained in one TTI, where the data portion can be flexibly uplink data or downlink data. The frame structure shown in fig. 1 can effectively meet the requirements of future low-delay and long-delay services through dynamic Transmission Time Intervals (TTIs); by transmitting ACK/NACK on the uplink control resource, the HARQ time is effectively shortened, and the service transmission time is further prolonged; by transmitting Sounding Reference Signals (SRS) in uplink control resources, the requirement of a large-scale antenna technology on pilot frequency resources is ensured, and the precision of the large-scale antenna technology is improved. However, in the prior art, no method for adjusting information transmission based on time domain characteristics of uplink and downlink transmission frames exists, and network transmission efficiency cannot be further improved and network reliability cannot be guaranteed.
Disclosure of Invention
In view of the above, the present invention provides a signal transmission method, a base station, a terminal device and a system, which can at least solve the above problems in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a signal transmission method, which comprises the following steps:
selecting a downlink transmission frame, and determining a first protection period GP in the downlink transmission frame;
setting at least one downlink signal in the first GP;
and sending the downlink transmission frame to terminal equipment.
The embodiment of the invention provides a signal transmission method, which comprises the following steps:
receiving a downlink transmission frame sent by a base station;
analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame;
and processing the downlink control signal based on the at least one downlink control signal obtained by analysis.
An embodiment of the present invention provides a base station, where the base station includes:
a first processing unit, configured to select a downlink transmission frame, and determine a first protection period GP in the downlink transmission frame;
a setting unit, configured to set at least one downlink signal in the first GP;
and the first sending unit is used for sending the downlink transmission frame to a receiving end.
An embodiment of the present invention provides a terminal device, where the terminal device includes:
a receiving unit, configured to receive a downlink transmission frame sent by a base station;
an analyzing unit, configured to analyze the first GP of the downlink transmission frame to obtain at least one downlink control signal;
and the second processing unit is used for processing based on the at least one downlink control signal obtained by analysis.
An embodiment of the present invention provides a signal transmission system, including:
the base station is used for selecting a downlink transmission frame and determining a first protection period GP in the downlink transmission frame; setting at least one downlink signal in the first GP; sending the downlink transmission frame to terminal equipment;
the terminal equipment is used for receiving a downlink transmission frame sent by the base station; analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame; and processing the downlink control signal based on the at least one downlink control signal obtained by analysis.
The embodiment of the invention provides a signal transmission method, a base station, terminal equipment and a system. Therefore, the mutual interference of signals in the uplink and downlink transmission frames is avoided, the stability of the network is improved, and the information transmission efficiency of the network is ensured.
Drawings
FIG. 1 is a diagram of a frame structure in the prior art;
FIG. 2 is a first flowchart illustrating a signal transmission method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an uplink and downlink transmission frame based on the embodiment of the present invention;
FIG. 4 is a flowchart illustrating a second exemplary embodiment of a signal transmission method;
FIG. 5 is a schematic diagram of a non-base-station component structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an apparatus structure according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a system configuration according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment,
An embodiment of the present invention provides a signal transmission method, which is applied to a base station, and as shown in fig. 2, the method includes:
step 201: selecting a downlink transmission frame, and determining a first protection period (GP, guard period) in the downlink transmission frame;
step 202: setting at least one downlink signal in the first GP;
step 203: and sending the downlink transmission frame to terminal equipment.
The basic idea of the present proposal is to specially design the interference-free resources for the GP1 in the downlink transmission frame and the GP2 in the uplink transmission frame. Specifically, it may be considered that a downlink control Signal, such as a downlink Demodulation Reference Signal (DMRS), CSI-RS, non-orthogonal and other interference-sensitive Signal transmissions, is preferentially set in the GP1, and an uplink DMRS, an uplink control Signal, non-orthogonal and other interference-sensitive Signal transmissions are preferentially performed in the GP 2.
Further, it can be considered to increase the modulation and coding levels of signals carried in the downlink GP1 and the uplink GP2, so as to further increase the system efficiency.
The setting of at least one downlink signal in the first GP includes:
and setting a downlink control signal in the first GP, and setting a resource indication field of an uplink control signal in the downlink control signal. The downlink control signal may be a downlink control channel (PDCCH).
Wherein, the setting of the resource indication field of the uplink control signal in the downlink control signal includes one of the following:
indicating that the resource of the uplink control signal is arranged on two sides of a frequency band in the downlink control signal;
indicating in the downlink control signal that a resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain;
and indicating that the resource of the uplink control signal is arranged in the uplink control resource in the downlink control signal.
Based on the above scenario, a first implementation example of the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamically uses TTI, downlink GP1 and uplink GP2 may not interfere with each other. A new DCI or an enhanced legacy DCI0 is defined to indicate a bearer mode of the PUCCH, where a legacy bearer is carried at both ends of a frequency band, or in GP2, or in an uplink control resource, and a 2bit indication is shared.
The PDCCH comprises an uplink PUCCH resource indication domain with 2 bits;
the UE receives a PDCCH in a downlink control domain;
the UE analyzes the PDCCH by using the C-RNTI of the UE to find downlink resources of the UE;
if the resource indication field in the PDCCH is '00', the PUCCH is indicated to be carried on two sides of the frequency band of the uplink transmission resource; if the resource indication field in the PDCCH is "01", it indicates that the PUCCH should be carried in the GP2 for uplink transmission; if the resource indication field in the PDCCH is "10", it indicates that the PUCCH should be carried in the uplink control resource.
On the basis of the processing scenario, the setting at least one downlink signal in the first GP may further include:
setting a downlink control signal in the first GP, and setting downlink control information in the downlink control signal to indicate a signal modulation scheme.
Based on the above description, the second example provided by the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamic TTI is used, there are cases where downlink GP1 and uplink GP2 do not interfere with each other, and therefore, it can be considered that non-orthogonal information is transmitted at these places, so as to further improve the reliability and efficiency of the system. If the terminal knows that it is transmitting in non-orthogonal mode, i.e. the transmission position of itself is clear, it is not necessary to inform the UE of the resource position accurately, so as to further reduce the control channel overhead.
A new type of downlink DCI is defined that does not contain resource specific location information, but which must be bound to non-orthogonal transmission modes, compared to existing DCIs.
The network allocates special RNTI (radio network temporary identifier), such as non-orthogonal RNTI, to the non-orthogonal transmission users for representing identity to the non-orthogonal transmission users;
the user analyzes the downlink transmission GP1 according to the RNTI of the user, thereby confirming the resource position of the user;
the PDCCH transmits new DCI, such as DCI6, informing a user of a modulation scheme, an adjustment level, and the like, which does not indicate a resource location allocated by the user compared to the existing DCI;
the user demodulates the data of the user according to the analyzed position information, the modulation mode and the like.
Further, this embodiment also provides more signals, where the setting of at least one downlink signal in the first GP includes:
setting a control signal for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device in the first GP.
Based on the above description, the present embodiment provides a third example as follows:
in a traditional mode, the pilot frequency information of adjacent cells adopts shifting thinking to eliminate the inter-cell interference, and DMRS is dispersed in TTI. On the other hand, as shown in fig. 3, it can be seen that there is a case where downlink GP1 and uplink GP2 do not interfere with each other when the network is in a dynamic TTI, and therefore, it is considered that pilot information is transmitted at these locations, and it is considered that the frequency domain density of pilots is increased.
The process is as follows:
the base station confirms that the dynamic TTI is adopted at the moment according to the system configuration information, and allocates a novel RNTI (radio network temporary identifier), such as an eimta-RNTI, to the UE in the cell;
the base station indicates the new pilot pattern of the base station or the pilot pattern of the terminal through broadcasting or the PDCCH.
It can be seen that, by adopting the above scheme, at least one downlink signal can be set in the first guard period by determining the first guard period without uplink interference in the downlink transmission frame. Therefore, the mutual interference of signals in the uplink and downlink transmission frames is avoided, the stability of the network is improved, and the information transmission efficiency of the network is ensured.
Example II,
An embodiment of the present invention provides a signal transmission method, which is applied to a terminal device, and as shown in fig. 4, the method includes:
step 401: receiving a downlink transmission frame sent by a base station;
step 402: analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame;
step 403: and processing the downlink control signal based on the at least one downlink control signal obtained by analysis.
On the basis of the above processing flow, the present embodiment further aims at how the terminal device performs subsequent processing based on the received downlink transmission frame:
the analyzing of the at least one downlink signal from the first GP of the downlink transmission frame includes:
analyzing and obtaining a resource indication domain of the uplink control signal from a first GP of the downlink transmission frame based on the cell radio network temporary identifier;
wherein, the resource indication field of the uplink control signal includes:
indicating that the resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
Further, the method further comprises: when the resource indication field of the uplink control signal is used for indicating that the resource of the uplink control signal is arranged in a second GP of an uplink transmission frame, controlling to arrange the uplink control signal in the second GP; and sending an uplink transmission frame with an uplink control signal in the second GP to a base station.
It should be noted that, in this embodiment, in addition to determining to transmit in the second GP according to the indication in the first GP of the downlink transmission frame, the terminal device may determine to transmit on both sides of the frequency band or transmit the uplink transmission signal at the preset uplink transmission resource according to the indication.
Based on the above scenario, a first implementation example of the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamically uses TTI, downlink GP1 and uplink GP2 may not interfere with each other. A new DCI or an enhanced legacy DCI0 is defined to indicate a bearer mode of the PUCCH, where a legacy bearer is carried at both ends of a frequency band, or in GP2, or in an uplink control resource, and a 2bit indication is shared.
The PDCCH comprises an uplink PUCCH resource indication domain with 2 bits;
the UE receives a PDCCH in a downlink control domain;
the UE analyzes the PDCCH by using the C-RNTI of the UE to find downlink resources of the UE;
if the resource indication field in the PDCCH is '00', the PUCCH is indicated to be carried on two sides of the frequency band of the uplink transmission resource; if the resource indication field in the PDCCH is "01", it indicates that the PUCCH should be carried in the GP2 for uplink transmission; if the resource indication field in the PDCCH is "10", it indicates that the PUCCH should be carried in the uplink control resource.
Further, after the resource indication field of the uplink control signal is obtained by parsing from the first GP of the downlink transmission frame, the method further includes:
analyzing and obtaining a modulation coding level in downlink control information from the first GP; and demodulating the data of the downlink transmission frame based on the modulation coding grade.
Based on the above description, the second example provided by the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamic TTI is used, there are cases where downlink GP1 and uplink GP2 do not interfere with each other, and therefore, it can be considered that non-orthogonal information is transmitted at these places, so as to further improve the reliability and efficiency of the system. If the terminal knows that it is transmitting in non-orthogonal mode, i.e. the transmission position of itself is clear, it is not necessary to inform the UE of the resource position accurately, so as to further reduce the control channel overhead.
A new type of downlink DCI is defined that does not contain resource specific location information, but which must be bound to non-orthogonal transmission modes, compared to existing DCIs.
The network allocates special RNTI (radio network temporary identifier), such as non-orthogonal RNTI, to the non-orthogonal transmission users for representing identity to the non-orthogonal transmission users;
the user analyzes the downlink transmission GP1 according to the RNTI of the user, thereby confirming the resource position of the user;
the PDCCH transmits new DCI, such as DCI6, informing a user of a modulation scheme, an adjustment level, and the like, which does not indicate a resource location allocated by the user compared to the existing DCI;
and the user demodulates the data of the signal according to the analyzed position information, the modulation mode, the adjustment level and the like.
Finally, on the basis of the above scenario, the method of this embodiment further includes:
analyzing and obtaining a control signal used for indicating a pilot frequency pattern of a base station and/or indicating a pattern of a detection pilot frequency of terminal equipment from the first GP in the downlink transmission;
and receiving the pilot frequency of the base station and/or sending the detection pilot frequency to the base station based on the control signal for indicating the pilot frequency pattern of the base station and/or the pattern of the detection pilot frequency of the terminal equipment.
Based on the above description, the present embodiment provides a third example as follows:
in a traditional mode, the pilot frequency information of adjacent cells adopts shifting thinking to eliminate the inter-cell interference, and DMRS is dispersed in TTI. On the other hand, as shown in fig. 3, it can be seen that there is a case where downlink GP1 and uplink GP2 do not interfere with each other when the network is in a dynamic TTI, and therefore, it is considered that pilot information is transmitted at these locations, and it is considered that the frequency domain density of pilots is increased.
The process is as follows:
the base station confirms that the dynamic TTI is adopted at the moment according to the system configuration information, and allocates a novel RNTI (radio network temporary identifier), such as an eimta-RNTI, to the UE in the cell;
the base station indicates the new pilot pattern of the base station or the pilot pattern of the terminal through broadcasting or the PDCCH.
It can be seen that, by adopting the above scheme, at least one downlink signal can be set in the first guard period by determining the first guard period without uplink interference in the downlink transmission frame. Therefore, the mutual interference of signals in the uplink and downlink transmission frames is avoided, the stability of the network is improved, and the information transmission efficiency of the network is ensured.
Example III,
An embodiment of the present invention provides a base station, as shown in fig. 5, where the base station includes:
a first processing unit 51, configured to select a downlink transmission frame, and determine a first protection period GP in the downlink transmission frame;
a setting unit 52 configured to set at least one downlink signal in the first GP;
a first sending unit 53, configured to send the downlink transmission frame to a receiving end.
The basic idea of the present proposal is to specially design the interference-free resources for the GP1 in the downlink transmission frame and the GP2 in the uplink transmission frame. Specifically, it may be considered that a downlink control Signal, such as a downlink Demodulation Reference Signal (DMRS), CSI-RS, non-orthogonal and other interference-sensitive Signal transmissions, is preferentially set in the GP1, and an uplink DMRS, an uplink control Signal, non-orthogonal and other interference-sensitive Signal transmissions are preferentially performed in the GP 2.
Further, it can be considered to increase the modulation and coding levels of signals carried in the downlink GP1 and the uplink GP2, so as to further increase the system efficiency.
The setting unit is configured to set a downlink control signal in the first GP, and set a resource indication field of an uplink control signal in the downlink control signal.
The downlink control signal may be a downlink control channel (PDCCH).
Wherein, the setting unit is at least configured to indicate, in the downlink control signal, that the resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
Based on the above scenario, a first implementation example of the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamically uses TTI, downlink GP1 and uplink GP2 may not interfere with each other. A new DCI or an enhanced legacy DCI0 is defined to indicate a bearer mode of the PUCCH, where a legacy bearer is carried at both ends of a frequency band, or in GP2, or in an uplink control resource, and a 2bit indication is shared.
The PDCCH comprises an uplink PUCCH resource indication domain with 2 bits;
the UE receives a PDCCH in a downlink control domain;
the UE analyzes the PDCCH by using the C-RNTI of the UE to find downlink resources of the UE;
if the resource indication field in the PDCCH is '00', the PUCCH is indicated to be carried on two sides of the frequency band of the uplink transmission resource; if the resource indication field in the PDCCH is "01", it indicates that the PUCCH should be carried in the GP2 for uplink transmission; if the resource indication field in the PDCCH is "10", it indicates that the PUCCH should be carried in the uplink control resource.
On the basis of the above processing scenario, the setting unit is configured to set a downlink control signal in the first GP, and set downlink control information in the downlink control signal to indicate a modulation coding level.
Based on the above description, the second example provided by the present embodiment is as follows:
as shown in fig. 3, it can be seen that, when the network dynamic TTI is used, there are cases where downlink GP1 and uplink GP2 do not interfere with each other, and therefore, it can be considered that non-orthogonal information is transmitted at these places, so as to further improve the reliability and efficiency of the system. If the terminal knows that it is transmitting in non-orthogonal mode, i.e. the transmission position of itself is clear, it is not necessary to inform the UE of the resource position accurately, so as to further reduce the control channel overhead.
A new type of downlink DCI is defined that does not contain resource specific location information, but which must be bound to non-orthogonal transmission modes, compared to existing DCIs.
The network allocates special RNTI (radio network temporary identifier), such as non-orthogonal RNTI, to the non-orthogonal transmission users for representing identity to the non-orthogonal transmission users;
the user analyzes the downlink transmission GP1 according to the RNTI of the user, thereby confirming the resource position of the user;
the PDCCH transmits new DCI, such as DCI6, informing a user of a modulation scheme, an adjustment level, and the like, which does not indicate a resource location allocated by the user compared to the existing DCI;
the user demodulates the data of the user according to the analyzed position information, the modulation mode and the like.
Further, the embodiment further provides more signals, and the setting unit is configured to set a control signal indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device in the first GP.
Based on the above description, the present embodiment provides a third example as follows:
in a traditional mode, the pilot frequency information of adjacent cells adopts shifting thinking to eliminate the inter-cell interference, and DMRS is dispersed in TTI. On the other hand, as shown in fig. 3, it can be seen that there is a case where downlink GP1 and uplink GP2 do not interfere with each other when the network is in a dynamic TTI, and therefore, it is considered that pilot information is transmitted at these locations, and it is considered that the frequency domain density of pilots is increased.
The process is as follows:
the base station confirms that the dynamic TTI is adopted at the moment according to the system configuration information, and allocates a novel RNTI (radio network temporary identifier), such as an eimta-RNTI, to the UE in the cell;
the base station indicates the new pilot pattern of the base station or the pilot pattern of the terminal through broadcasting or the PDCCH.
It can be seen that, by adopting the above scheme, at least one downlink signal can be set in the first guard period by determining the first guard period without uplink interference in the downlink transmission frame. Therefore, the mutual interference of signals in the uplink and downlink transmission frames is avoided, the stability of the network is improved, and the information transmission efficiency of the network is ensured.
Example four,
An embodiment of the present invention provides a terminal device, as shown in fig. 6, where the terminal device includes:
a receiving unit 61, configured to receive a downlink transmission frame sent by a base station;
an analyzing unit 62, configured to analyze at least one downlink control signal from the first GP of the downlink transmission frame;
a second processing unit 63, configured to perform processing based on the at least one downlink control signal obtained through analysis.
On the basis of the above processing flow, the present embodiment further aims at how the terminal device performs subsequent processing based on the received downlink transmission frame:
the analysis unit is configured to analyze, based on the cell radio network temporary identifier, the resource indication field of the uplink control signal from the first GP of the downlink transmission frame;
wherein, the resource indication field of the uplink control signal at least comprises:
indicating that the resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
Further, the terminal device further includes:
a second sending unit 64, configured to send an uplink transmission frame in which an uplink control signal is set in the second GP to a base station;
correspondingly, the second processing unit 63 is configured to control setting of an uplink control signal in a second GP of an uplink transmission frame when the resource indication field of the uplink control signal is used to indicate that the resource of the uplink control signal is set in the second GP.
It should be noted that, in this embodiment, in addition to determining to transmit in the second GP according to the indication in the first GP of the downlink transmission frame, the terminal device may determine to transmit on both sides of the frequency band or transmit the uplink transmission signal at the preset uplink transmission resource according to the indication.
Further, the parsing unit is configured to parse the modulation and coding level in the downlink control information from the first GP;
correspondingly, the second processing unit is configured to demodulate data of the downlink transmission frame based on the modulation and coding level.
The analyzing unit is configured to analyze the first GP in the downlink transmission to obtain a control signal used for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device; and controlling the receiving unit to receive the pilot frequency of the base station and/or controlling the second transmitting unit to transmit the sounding pilot frequency to the base station based on the control signal for indicating the pilot frequency pattern of the base station and/or the pattern of the sounding pilot frequency of the terminal equipment.
It can be seen that, by adopting the above scheme, at least one downlink signal can be set in the first guard period by determining the first guard period without uplink interference in the downlink transmission frame. Therefore, the mutual interference of signals in the uplink and downlink transmission frames is avoided, the stability of the network is improved, and the information transmission efficiency of the network is ensured.
Example V,
An embodiment of the present invention provides a signal transmission system, as shown in fig. 7, the system includes:
a base station 71, configured to select a downlink transmission frame, and determine a first protection period GP in the downlink transmission frame; setting at least one downlink signal in the first GP; sending the downlink transmission frame to terminal equipment;
a terminal device 72, configured to receive a downlink transmission frame sent by a base station; analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame; and processing the downlink control signal based on the at least one downlink control signal obtained by analysis.
Each functional module in the base station and the terminal device provided in this embodiment is the same as that in the foregoing embodiment, and is not described again here.
The integrated module according to the embodiment of the present invention may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as an independent product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for enabling a computer device (which may be a personal computer, a network device, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (19)
1. A signal transmission method applied to a base station, the method comprising:
selecting a downlink transmission frame, and determining a first protection period GP in the downlink transmission frame;
setting at least one downlink signal in the first GP;
sending the downlink transmission frame to terminal equipment;
wherein, the setting at least one downlink signal in the first GP includes:
setting a control signal for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device in the first GP.
2. The method of claim 1, wherein the setting at least one downlink signal in the first GP comprises:
and setting a downlink control signal in the first GP, and setting a resource indication field of an uplink control signal in the downlink control signal.
3. The method of claim 2, wherein the setting a resource indication field of an uplink control signal in the downlink control signal at least comprises:
indicating in the downlink control signal that a resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
4. The method according to claim 1 or 2, wherein the setting at least one downlink signal in the first GP comprises:
setting a downlink control signal in the first GP, and setting downlink control information in the downlink control signal to indicate a modulation coding level.
5. A signal transmission method is applied to terminal equipment, and is characterized by comprising the following steps:
receiving a downlink transmission frame sent by a base station;
analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame;
processing based on the at least one downlink control signal obtained by analysis;
the method further comprises the following steps:
and analyzing the first GP in the downlink transmission to obtain a control signal for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device.
6. The method of claim 5, wherein the parsing at least one downlink signal from the first GP of the downlink transmission frame comprises:
analyzing and obtaining a resource indication domain of an uplink control signal from a first GP of the downlink transmission frame based on the cell radio network temporary identifier;
wherein, the resource indication field of the uplink control signal at least comprises: indicating that the resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
7. The method of claim 6, further comprising:
when the resource indication field of the uplink control signal is used for indicating that the resource of the uplink control signal is arranged in a second GP of an uplink transmission frame, controlling to arrange the uplink control signal in the second GP;
and sending an uplink transmission frame with an uplink control signal in the second GP to a base station.
8. The method as claimed in claim 6, wherein after parsing the resource indication field of the uplink control signal from the first GP of the downlink transmission frame, the method further comprises:
analyzing and obtaining a modulation coding level in downlink control information from the first GP;
and demodulating the data of the downlink transmission frame based on the modulation coding grade.
9. The method of claim 5, further comprising:
and receiving the pilot frequency of the base station and/or sending the detection pilot frequency to the base station based on the control signal for indicating the pilot frequency pattern of the base station and/or the pattern of the detection pilot frequency of the terminal equipment.
10. A base station, characterized in that the base station comprises:
a first processing unit, configured to select a downlink transmission frame, and determine a first protection period GP in the downlink transmission frame;
a setting unit, configured to set at least one downlink signal in the first GP; the method further comprises the steps of setting a control signal used for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device in the first GP; and the first sending unit is used for sending the downlink transmission frame to a receiving end.
11. The base station of claim 10, wherein the setting unit is configured to set a downlink control signal in the first GP, and set a resource indication field of an uplink control signal in the downlink control signal.
12. The base station according to claim 11, wherein the setting unit is configured to at least indicate in the downlink control signal that the resource of the uplink control signal is set in the second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
13. The base station according to claim 10 or 11, wherein the setting unit is configured to set a downlink control signal in the first GP, and to set downlink control information in the downlink control signal to indicate a modulation and coding level.
14. A terminal device, characterized in that the terminal device comprises:
a receiving unit, configured to receive a downlink transmission frame sent by a base station;
an analyzing unit, configured to analyze the first GP of the downlink transmission frame to obtain at least one downlink control signal; the method further comprises the step of analyzing the first GP in the downlink transmission to obtain a control signal for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device;
and the second processing unit is used for processing based on the at least one downlink control signal obtained by analysis.
15. The terminal device according to claim 14, wherein the parsing unit is configured to parse a resource indication field of an uplink control signal from the first GP of the downlink transmission frame based on a cell radio network temporary identifier;
wherein, the resource indication field of the uplink control signal at least comprises: indicating that the resource of the uplink control signal is set in a second GP of an uplink transmission frame; wherein the second GP is separated from the first GP in a time domain.
16. The terminal device according to claim 15, wherein the terminal device further comprises:
a second transmitting unit, configured to transmit an uplink transmission frame in which an uplink control signal is set in the second GP to a base station;
correspondingly, the second processing unit is configured to control setting of an uplink control signal in a second GP of an uplink transmission frame when the resource indication field of the uplink control signal is used to indicate that the resource of the uplink control signal is set in the second GP.
17. A terminal device according to claim 15, wherein the parsing unit is configured to parse a modulation and coding level in downlink control information from the first GP;
correspondingly, the second processing unit is configured to demodulate data of the downlink transmission frame based on the modulation and coding level.
18. The terminal device according to claim 14, wherein the parsing unit is configured to control the receiving unit to receive the pilot of the base station and/or control the second transmitting unit to transmit the sounding pilot to the base station based on the control signal indicating the pilot pattern of the base station and/or the pattern of the sounding pilot of the terminal device.
19. A signal transmission system, the system comprising:
the base station is used for selecting a downlink transmission frame and determining a first protection period GP in the downlink transmission frame; setting at least one downlink signal in the first GP; sending the downlink transmission frame to terminal equipment; wherein, the setting at least one downlink signal in the first GP includes: setting a control signal for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device in the first GP;
the terminal equipment is used for receiving a downlink transmission frame sent by the base station; analyzing and obtaining at least one downlink control signal from the first GP of the downlink transmission frame; processing based on the at least one downlink control signal obtained by analysis; and the method is further used for parsing a control signal used for indicating a pilot pattern of a base station and/or indicating a pattern of a sounding pilot of a terminal device from the first GP in the downlink transmission.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931456A (en) * | 2010-08-09 | 2010-12-29 | 中兴通讯股份有限公司 | Wireless frame of mobile communication system and sending method of measurement reference signal |
| CN102811191A (en) * | 2011-05-31 | 2012-12-05 | 华为技术有限公司 | Data transmission method and device |
| CN104243387A (en) * | 2014-09-03 | 2014-12-24 | 京信通信系统（中国）有限公司 | Channel correction method and device of OFDM system |
| CN104468433A (en) * | 2013-09-25 | 2015-03-25 | 华为技术有限公司 | Correction signal transmitting method and base station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2901599B1 (en) * | 2012-09-26 | 2022-06-29 | Interdigital Patent Holdings, Inc. | Methods for dynamic tdd uplink/downlink configuration |
-
2016
- 2016-05-24 CN CN201610350265.3A patent/CN107426818B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931456A (en) * | 2010-08-09 | 2010-12-29 | 中兴通讯股份有限公司 | Wireless frame of mobile communication system and sending method of measurement reference signal |
| CN102811191A (en) * | 2011-05-31 | 2012-12-05 | 华为技术有限公司 | Data transmission method and device |
| CN104468433A (en) * | 2013-09-25 | 2015-03-25 | 华为技术有限公司 | Correction signal transmitting method and base station |
| CN104243387A (en) * | 2014-09-03 | 2014-12-24 | 京信通信系统（中国）有限公司 | Channel correction method and device of OFDM system |
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