CN112954700B - Signal transmission method, device and storage medium - Google Patents
Signal transmission method, device and storage medium Download PDFInfo
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- CN112954700B CN112954700B CN201911269737.2A CN201911269737A CN112954700B CN 112954700 B CN112954700 B CN 112954700B CN 201911269737 A CN201911269737 A CN 201911269737A CN 112954700 B CN112954700 B CN 112954700B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Abstract
The embodiment of the disclosure discloses a signal transmission method, which is characterized by comprising the following steps: sending a common reference signal CRS of a first type of service on a first type of physical resource block PRB of a shared bandwidth according to a first density; the PRBs of the first type are also used for information transmission of the services of the first type; transmitting the CRS according to a second density on a second type of PRB of the shared bandwidth, wherein the second type of PRB is also used for information transmission of a second type of service; the second density is lower than the first density. The disclosed embodiment further discloses a signal transmission device and a storage medium. In the embodiment of the disclosure, the transmission rate of the second type of service is improved by reducing the density of the common reference signal CRS for transmitting the first type of service.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a signal transmission method, apparatus, and storage medium.
Background
An operator deploys a continuous 100MHz bandwidth to a 5G system, specifically 2515MHz to 2615MHz. The 2575 MHz-2595 MHz and 2595 MHz-2615 MHz 20MHz frequency spectrums correspond to frequency points D1 and D2 of the LTE system respectively and are the dominant bandwidths of the 4G network of the existing operator. The existing D1 and D2 frequency points of the network have 4G commercial users to access. The 100MHz bandwidth of 2515MHz to 2615MHz is higher priority than 4G for 5G transmission. When a 5G user accesses a network and needs to transmit a high-speed data service, the D1 and D2 frequency points are used for transmitting the 5G service; when no 5G user uses the frequency spectrum, the frequency points D1 and D2 are still used for 4G service transmission, and the scheme is called 4/5G frequency spectrum sharing.
The 4/5G spectrum sharing is divided into carrier level sharing and Resource Block (RB) level sharing. Carrier level sharing refers to that the 20MHz bandwidth of the D1 or D2 frequency point is entirely used for 5G service transmission, and the 4G user does not need to be kept in a residence state on the frequency band, so that the 4G user needs to be migrated to another frequency point of the 4G network, and a reference signal for ensuring residence of the 4G user is not sent on the shared bandwidth. The RB-level sharing means that the 20MHz bandwidth of the D1 or D2 frequency point is not used for 5G service transmission as a whole, but the spectrum of the D1 or D2 frequency band is used for 5G service transmission in RB granularity according to the specific bandwidth requirement required by 5G service transmission. RB level sharing is flexible and fast as needed, so when part of RBs on the D1 or D2 band are used for 5G transmission, the camping state of 4G users on the shared RBs still needs to be reserved (the 4G users do not perceive the corresponding RB resource for 5G transmission), and thus reference signals of the 4G network also need to be sent on the shared RBs. The carrier level sharing can realize static 4/5G frequency spectrum sharing, and the RB level sharing can realize dynamic 4/5G frequency spectrum sharing, thereby realizing flexible and dynamic D1 and D2 frequency spectrum replanting.
However, the biggest challenge of the RB-level spectrum sharing scheme is that in order to maintain the 4G user residence state in the D1 and D2 bands, the 4G network needs to transmit a common Reference Signal (CRS, cell Reference Signal), and at the corresponding transmission position of the common Reference Signal, the 5G network needs to perform rate matching without transmitting any data or Signal. This may result in low traffic transmission rate for 5G system users in the D1 and D2 frequency bands.
Disclosure of Invention
The embodiment of the disclosure provides a signal transmission method, a signal transmission device and a storage medium.
The technical scheme of the embodiment of the disclosure is realized as follows:
in a first aspect, an embodiment of the present disclosure provides a signal transmission method, including:
sending a common reference signal CRS of a first type of service on a first type of physical resource block PRB of a shared bandwidth according to a first density; the PRBs of the first type are also used for information transmission of the services of the first type;
transmitting the CRS according to a second density on a second type of PRB of the shared bandwidth, wherein the second type of PRB is also used for information transmission of a second type of service; the second density is lower than the first density.
The sending of the common reference signal CRS of the first type of service according to the first density on the first type of shared physical resource block PRB of the shared bandwidth includes:
transmitting the CRS over N symbols on the first type of PRBs; wherein N is an integer greater than 1;
the transmitting CRS according to a second density on the second type of PRB of the shared bandwidth includes:
the CRS is transmitted on the first symbol on the second type of PRB.
Wherein the transmitting the CRS over the N symbols on the PRBs of the first type comprises:
transmitting the CRS with a first power over N symbols on the first type of PRBs;
the transmitting the CRS on the first symbol on the second type of PRBs comprises:
transmitting the CRS with a second power on a first symbol on the PRBs of the second type, wherein the second power is higher than the first power.
Wherein the method further comprises:
transmitting information of at least one of the following symbols in symbols other than the first symbol on the PRBs of the second type: the PDCCH information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
Wherein the method further comprises:
and sending the PDCCH information of the first type of service on a first symbol on the physical resource block of the shared bandwidth.
Wherein the method further comprises:
when the first-type PRB adopts a first subcarrier interval to transmit the information of the first-type service and the second-type PRB adopts a second subcarrier interval to transmit the information of the second-type service, a third-type PRB is configured in the shared bandwidth, wherein the third-type PRB is used for isolating the first-type PRB and the second PRB in a frequency domain.
In a second aspect, an embodiment of the present disclosure further provides a signal transmission method, including:
receiving a Common Reference Signal (CRS) of a first type of service according to a first density on a first type of Physical Resource Block (PRB) of a shared bandwidth, wherein the first type of PRB is also used for information transmission of the first type of service;
receiving the CRS according to a second density on a second type of PRB of the shared bandwidth, wherein the second type of PRB is also used for information transmission of a second type of service; the second density is lower than the first density.
The receiving, on a physical resource block PRB of a shared bandwidth, a common reference signal CRS of a first type of service according to a first density includes:
receiving the CRS on N symbols on the first type of PRBs; wherein N is an integer greater than 1;
receiving the CRS according to a second density on the second type of PRB of the shared bandwidth, including:
receiving the CRS on a first symbol on the PRBs of the second type.
Wherein the receiving the CRS over the N symbols on the first PRB type comprises:
receiving the CRS transmitted with a first power on N symbols on the first type of PRBs;
the receiving the CRS on the first symbol on the second PRB type comprises:
receiving the CRS transmitted with a second power on a first symbol on the PRBs of the second type, wherein the second power is higher than the first power.
In a third aspect, the disclosed embodiments also provide a signal transmission apparatus, which includes a sending module, wherein,
the sending module is used for sending a common reference signal CRS of a first type of service according to a first density on a first type of physical resource block PRB of a shared bandwidth; the PRBs of the first type are also used for information transmission of the services of the first type; the system is further configured to send the CRS according to a second density on a second type of PRB of the shared bandwidth, where the second type of PRB is further used for information transmission of a second type of service; the second density is lower than the first density.
Wherein the transmitting module is further configured to transmit the CRS over N symbols on the first type of PRB; wherein N is an integer greater than 1; and further configured to transmit the CRS on a first symbol on the second type of PRB.
The transmitting module is further configured to transmit the CRS with a first power over N symbols on the first type of PRB; and further configured to transmit the CRS with a second power on a first symbol on the second type of PRB, where the second power is higher than the first power.
Wherein the sending module is further configured to transmit, in a symbol other than the first symbol on the second type of PRB, information of at least one of: the PDCCH information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
The sending module is further configured to send PDCCH information of the first type of service on a first symbol on the shared bandwidth physical resource block.
When the first PRB performs information transmission of the first service using a first subcarrier interval and the second PRB performs information transmission of the second service using a second subcarrier interval, the sending module configures a third PRB in the shared bandwidth, where the third PRB is used to isolate the first PRB from the second PRB in a frequency domain.
In a fourth aspect, an embodiment of the present disclosure further provides a signal transmission apparatus, including a receiving module,
the receiving module is configured to receive a common reference signal CRS of a first type of service according to a first density on a first type of physical resource block PRB of a shared bandwidth, where the first type of PRB is also used for information transmission of the first type of service; the system is further configured to receive the CRS according to a second density on a second type of PRB of the shared bandwidth, where the second type of PRB is further used for information transmission of a second type of service; the second density is lower than the first density.
Wherein the receiving module is further configured to receive the CRS over N symbols on the first type of PRB, where N is an integer greater than 1; or receiving the CRS on a first symbol on the second type of PRB.
Wherein the CRS transmitted with a first power is received on N symbols on the PRBs of the first type; or receiving the CRS transmitted with a second power on a first symbol on the PRBs of the second type, wherein the second power is higher than the first power.
In a fifth aspect, an embodiment of the present disclosure further provides a signal transmission apparatus, including: a processor and a memory for storing a computer program capable of running on the processor; wherein the processor is configured to implement the signal transmission method according to any one of the embodiments of the present disclosure when the processor runs the computer program.
In a sixth aspect, the present disclosure further provides a storage medium, where the storage medium stores a computer program, and the computer program, when executed by a processor, implements the signal transmission method according to any one of the embodiments of the present disclosure.
In the embodiment of the disclosure, a Common Reference Signal (CRS) of a first type of service is sent on a first type of Physical Resource Block (PRB) of a shared bandwidth according to a first density; the PRBs of the first type are also used for information transmission of the services of the first type; transmitting the CRS according to a second density on a second type of PRB of the shared bandwidth, wherein the second type of PRB is also used for information transmission of a second type of service; the second density is lower than the first density. Here, since the second density is lower than the first density, the density of the CRS for transmitting the first type of service is reduced, so that the PDCCH resource of the second type of PRB for transmitting the CRS is reduced, more PDCCH resources of the second type of PRB can be used for information transmission of the second type of service, and the information transmission efficiency of the second type of service is improved.
Drawings
Fig. 1 is a schematic view of a scenario of physical resource sharing during signal transmission according to an embodiment of the present disclosure;
fig. 2 is a schematic view of an application scenario of sharing physical resource blocks of a first service and a second service according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a signal transmission method according to an embodiment of the disclosure;
fig. 4 is a schematic flowchart of a method for sharing physical resource blocks of a 4G service and a 5G service according to another embodiment of the present disclosure;
fig. 5 is a schematic flowchart of a signal transmission method according to another embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a signal transmission apparatus according to another embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a signal transmission apparatus according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
For better understanding of the technical solutions of the embodiments of the present disclosure, please refer to fig. 1 and fig. 2, in fig. 1, an embodiment of the present disclosure provides a scenario of physical resource sharing during signal transmission. The underlying physical resource blocks correspond to a first class of services, e.g., 4G wireless communication services. The physical resource block located at the top layer corresponds to a second type of service, for example, a 5G wireless communication service, where it should be noted that each symbol time length of the 5G wireless communication service is 1/2 of each symbol time length of a 4G communication system. The symbol pointed by the tail end of the arrow is the symbol position of the first type service transmitting the common reference signal. When the symbol pointed by the arrow end is a physical resource block shared by the first class service and the second class service, the second class service system performs rate matching at the sending position of the common reference signal in order to avoid the common reference signal of the first class service, and no data or signal is sent on the symbol. Specifically, in fig. 2, an embodiment of the present disclosure provides an application scenario of sharing physical resource blocks of a first type service and a second type service. In order to ensure the residence of the first type service users, the common reference signals are transmitted on the physical resource block symbols as shown in fig. 2 according to the set density, and when the common reference signals for the first type service are transmitted, the second type service system performs rate matching without transmitting any data and signals. And transmitting the information of the first type of service or the second type of service on other symbols.
Here, in order to avoid the common reference signal of the first type service, the second type service system does not use the symbol occupied by the common reference signal sent by the first type service to perform information transmission. If the sending density of the first-class service common reference signals is high, the transmission resources of the second-class service are reduced, and the transmission efficiency of the second-class service is reduced.
Referring to fig. 3, an embodiment of the disclosure provides a signal transmission method. The method comprises the following steps:
Here, the Physical resource block is a resource of a Physical Downlink Control Channel (PDCCH) allocated to the PDCCH. Here, when the second type service user accesses the network and needs to perform service transmission, the shared bandwidth may be used for the second type service transmission, and when no second type service user accesses the network for service transmission, the shared bandwidth may be used for the first type service transmission. Here, the shared bandwidth may be a bandwidth corresponding to two 20MHz segments of 2575MHz to 2595MHz and 2595MHz to 2615MHz. The shared bandwidth may be applied to the second type of traffic with a higher priority than to the first type of traffic. Here, the first type of service may be a 4G wireless communication service; the second type of traffic may be 5G wireless communication traffic; the shared bandwidth is applied to the 5G wireless communication service with a higher priority than the 4G wireless communication service. Here, when there is a need to access the network for service transmission by both the 5G wireless communication service user and the 4G wireless communication service user, the shared bandwidth may be preferentially allocated to the 5G wireless communication service user.
Here, the first type of physical resource block may be a physical resource block configured to the first type of service on a shared bandwidth. Here, the first type of physical resource blocks may be physical resource blocks temporarily configured to the first type of traffic based on demand. For example, when a terminal of a first type of service needs to be accessed, the physical resource block is allocated to the first type of service of the terminal. The first type of physical resource blocks may also be physical resource blocks already occupied by the first type of traffic. For example, there are currently a large number of terminals in the first type of service, occupying the physical resource blocks.
Here, the second type of physical resource block may be a physical resource block configured for the second type of service on a shared bandwidth. Here, the second type of physical resource blocks may be physical resource blocks temporarily configured to the second type of service based on a requirement. For example, when a terminal requiring the second service accesses, the physical resource block is allocated to the second service of the terminal. The second type of physical resource blocks may also be physical resource blocks already occupied by the second type of traffic. For example, there are currently a large number of terminals in the second type of service, occupying the physical resource block. Here, it may be preferable to allocate a large number of the physical resource blocks to the second type of traffic.
It should be noted that the first type of physical resource block may be released by a service system at any time and applied to the second type of service; the second type physical resource block can also be released by a service system at any time and applied to the first type service. The physical resource blocks can be flexibly distributed between the first type of service and the second type of service.
Here, the density at which the common reference signal is transmitted may also be understood as a frequency at which the common reference signal is transmitted. Here, one common reference signal may be transmitted every 4 symbols, and the corresponding transmission density may be defined as 1/4; if one common reference signal is transmitted every 6 symbols, the corresponding transmission density may be defined as 1/6. Here, the density of transmitting the common reference signal may be flexibly set or specified according to requirements. For example, the common reference signal is transmitted on the 1 st symbol, the 5 th symbol, the 8 th symbol, the 11 th symbol and the 12 th symbol on the physical resource block, respectively. Here, the fewer symbols used for transmitting the common reference signal, the more symbols are used for the information transmission, and the more symbols are used for the information transmission, which may improve the efficiency of the information transmission.
Here, the information of the first type service may refer to user plane information of the first type service. For example, if the first type of service is a 5G video service, the information of the 5G video service may be video data information of the 5G video service. The information of the second type of service may refer to user plane information of the second type of service.
Referring to fig. 4, a method for sharing physical resource blocks of 4G services and 5G services is provided. Here, the shared bandwidth of the 4G service and the 5G service is 20MHz, and the common reference signal is transmitted at a first density in the physical resource block portion for 4G service transmission (the position where the common reference signal is transmitted corresponds to the a position in fig. 4), where the first density may be defined as 4; in the physical resource block section for 5G traffic transmission, the common reference signal (corresponding to B in fig. 4) is transmitted at a second density, where the second density may be defined as 1. Here, the physical resource block (corresponding to C in fig. 4) for the 4G service is also used for information transmission of the 4G service. Here, the information transmission of the 4G service includes transmission of user plane data of the 4G service. Here, the physical resource block (corresponding to D in fig. 4) for the 5G service is also used for information transmission of the 5G service. Here, the information transmission of the 5G service includes transmission of user plane data of the 5G service.
In this embodiment of the present disclosure, since the second density is lower than the first density, the density of the common reference signal for sending the first type of service is reduced, so that Physical Downlink Control Channel (PDCCH) resources of the second type of Physical resource block used for sending the common reference signal are reduced, so that more Physical Downlink Control Channel resources of the second type of Physical resource block can be used for information transmission of the second type of service, and the information transmission efficiency of the second type of service is improved.
Wherein, the sending the common reference signal of the first type service according to the first density on the first type shared physical resource block of the shared bandwidth includes:
transmitting the common reference signal on N symbols on the first type of physical resource block; wherein N is an integer greater than 1;
here, the common reference signal of the first type of traffic may be transmitted on N symbols on the first type of physical resource block according to a density of the common reference signal transmission of the first type of traffic in the non-shared bandwidth. For example, N is set to 5, and the common reference signal is transmitted on the 1 st symbol, the 5 th symbol, the 8 th symbol, the 11 th symbol, and the 12 th symbol of the first type physical resource block, respectively. Here, the set symbol may be flexibly set or specified according to transmission requirements. It should be noted that the density can also be customized.
The sending a common reference signal according to a second density on a second type of physical resource block of the shared bandwidth includes:
and the common reference signal is sent on the first symbol of the second type physical resource block.
Here, the common reference signal may be transmitted on the first symbol on each of the second type physical resource blocks. The common reference signal may also be sent on a first symbol on a part of the second type physical resource blocks on the second type physical resource blocks. Here, transmitting the common reference signal on the first symbol on a part of the second type physical resource block on the second type physical resource block may further reduce the symbols for transmitting the common reference signal.
Wherein the sending the common reference signal over the N symbols on the first type of physical resource block includes:
transmitting the common reference signal at a first power over N symbols on the first type of physical resource block;
the sending the common reference signal on the first symbol on the second type of physical resource block comprises:
transmitting the common reference signal with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
Here, the first power and the second power may be set according to a network coverage situation. Here, the second power may be boosted by a first set value on the basis of the first power. For example, 6dB up, which may ensure that the inter-resource block filtering result of the common reference signal for the first type of traffic (e.g., 4G traffic) does not change the network coverage for the first type of traffic.
Wherein the method further comprises:
transmitting information of at least one of the following symbols on the second type of physical resource block except the first symbol: the physical downlink control channel information of the second type of service, the uplink service information of the second type of service, and the downlink service information of the second type of service.
Referring again to fig. 4, information of at least one of the following symbols (corresponding to D in fig. 4) may be transmitted in a symbol other than the first symbol on the second type of PRB: the physical downlink control channel information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service. Here, the physical downlink control channel information may be data of a control plane of the second type of traffic. The uplink service information of the second type of service may be uplink service information of a 5G service, for example, uplink service information of a 5G video service. The downlink service information of the second type of service may be downlink service information of a 5G service, for example, downlink service information of a 5G video service.
Referring to fig. 4 again, the information of the physical downlink control channel of the first type of service is sent on the first symbol (e.g. E) on the physical resource block of the shared bandwidth.
Here, the shared bandwidth may be 20MHz. Here, the first symbol of 20MHz may be used to send the information of the Physical Downlink control CHannel of the first type of service (for example, 4G service), and the first type of service user knows, through the information of the Physical Downlink control CHannel, the Shared Physical resource block location of the Physical Downlink Shared CHannel (PDSCH) for scheduling the first type of service.
Referring again to fig. 4, the method further includes:
when the first type of physical resource block uses a first subcarrier interval to perform information transmission of the first type of service, and the second type of physical resource block uses a second subcarrier interval to perform information transmission of the second type of service, a third type of physical resource block (corresponding to F in fig. 4) is configured in the shared bandwidth, where the third type of physical resource block is used to isolate the first type of physical resource block from the second type of physical resource block in a frequency domain.
Here, when the first type physical resource block uses a first subcarrier interval to perform information transmission of the first type service, and the second type physical resource block uses a second subcarrier interval to perform information transmission of the second type service, in order to avoid interference between a shared physical resource block used for transmitting the first type service and a shared physical resource block used for transmitting the second type service, 2 to 3 third type physical resource blocks may be left without scheduling the first type service user and the second type service user.
Referring to fig. 5, an embodiment of the present disclosure provides a signal transmission method, including:
Here, when the second type service user accesses the network and needs to perform service transmission, the shared bandwidth may be used for the second type service transmission, and when no second type service user accesses the network for service transmission, the shared bandwidth may be used for the first type service transmission. Here, the shared bandwidth may be a bandwidth corresponding to two 20MHz segments of 2575MHz to 2595MHz and 2595MHz to 2615MHz. The shared bandwidth may be applied to the second type of traffic with a higher priority than to the first type of traffic. Here, the first type of service may be a 4G wireless communication service; the second type of traffic may be 5G wireless communication traffic; the shared bandwidth is applied to the 5G wireless communication traffic with a higher priority than the 4G wireless communication traffic. Here, when there are 5G wireless communication service users and 4G wireless communication service users both needing to access the network for service transmission, the shared bandwidth may be preferentially allocated to the 5G wireless communication service users.
Here, the first type of physical resource block may be a physical resource block configured for the first type of service on a shared bandwidth. Here, the first type of physical resource blocks may be physical resource blocks temporarily configured to the first type of services based on requirements. For example, when a terminal of a first type of service needs to be accessed, the physical resource block is allocated to the first type of service of the terminal. The first type of physical resource blocks may also be physical resource blocks already occupied by the first type of traffic. For example, there are currently a large number of terminals in the first class of service, occupying the physical resource blocks.
Here, the second type of physical resource blocks may be physical resource blocks configured for the second type of service on a shared bandwidth. Here, the second type of physical resource blocks may be physical resource blocks temporarily configured to the second type of traffic based on demand. For example, when a terminal requiring the second type of service accesses, the physical resource block is allocated to the second type of service of the terminal. The second type of physical resource blocks may also be physical resource blocks already occupied by the second type of traffic. For example, there are currently a large number of terminals in the second type of service, occupying the physical resource blocks. Here, it may be preferable to configure a large number of the physical resource blocks for the second type of service.
It should be noted that the first type of physical resource block may be released by a service system at any time and applied to the second type of service; the second type physical resource block can also be released by a service system at any time and applied to the first type service. The physical resource blocks can be flexibly distributed between the first type of service and the second type of service.
Here, the density at which the common reference signal is received may also be understood as a frequency at which the common reference signal is received. Here, one common reference signal may be received every 4 symbols, and the corresponding reception density may be defined as 1/4; if one of the common reference signals is received every 6 symbols, the corresponding transmission density may be defined as 1/6. Here, the density of receiving the common reference signal may be flexibly set or specified according to requirements. For example, the common reference signal is transmitted on the 1 st symbol, the 5 th symbol, the 8 th symbol, the 11 th symbol, and the 12 th symbol of the PDCCH resource, respectively. Here, the fewer symbols used for receiving the common reference signal, the more symbols are used for the information transmission, and the more symbols are used for the information transmission, which may improve the efficiency of the information transmission.
Here, the information of the first type service may refer to user plane information of the first type service. For example, if the first type of service is a 5G video service, the information of the 5G video service may be video data information of the 5G video service. The information of the second type of service may refer to user plane information of the second type of service.
Referring to fig. 4 again, a schematic diagram of physical resource block sharing of 4G services and 5G services is provided, where a shared bandwidth of the 4G services and the 5G services is 20MHz, and a common reference signal (corresponding to a in the diagram) is received at a physical resource block portion used for 4G service transmission according to a first density, where the first density may be defined as 4; in the physical resource block section for 5G traffic transmission, the common reference signal (corresponding to B in the figure) is received at a second density, where the second density may be defined as 1. Here, the physical resource block (e.g., C) for the 4G service is also used for information transmission of the 4G service. Here, the information transmission of the 4G service includes transmission of user plane data of the 4G service. Here, the physical resource block (e.g., D) for the 5G service is also used for information transmission of the 5G service. Here, the information transmission of the 5G service includes transmission of user plane data of the 5G service.
In this embodiment of the present disclosure, since the second density is lower than the first density, the density of receiving the common reference signal of the first type of service is reduced, so that the PDCCH resource of the second type of physical resource block that is occupied for receiving the common reference signal is reduced, more PDCCH resources of the second type of physical resource block can be used for information transmission of the second type of service, and the information transmission efficiency of the second type of service is improved.
Wherein, the receiving, on a physical resource block of a shared bandwidth, a common reference signal CRS of a first type of service according to a first density includes:
receiving the CRS over N symbols on the first type of physical resource block;
here, the common reference signal of the first type of traffic may be received on N symbols on the first type of physical resource block according to a received density of the common reference signal in the non-shared bandwidth. For example, N is 5, and the common reference signal is received on the 1 st symbol, the 5 th symbol, the 8 th symbol, the 11 th symbol, and the 12 th symbol of the PDCCH resource, respectively. Here, the set symbol may be flexibly set or specified according to the need. It should be noted that the density can also be customized.
The receiving the common reference signal according to a second density on a second type of physical resource block of the shared bandwidth includes:
receiving the common reference signal on a first symbol on the second type of physical resource block.
Here, the common reference signal may be received on a first symbol of each second type physical resource block. The common reference signal may also be received on a first symbol of a part of the second type physical resource block. Here, receiving the common reference signal on a first symbol of a portion of the second type of physical resource blocks may further reduce the symbols on which the common reference signal is received.
Wherein the receiving the common reference signal over the N symbols on the first type of physical resource block comprises:
receiving the common reference signal transmitted with a first power over N symbols on the first type of physical resource block;
the receiving the common reference signal on the first symbol on the second type of physical resource block includes:
receiving the common reference signal transmitted with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
Here, the first power and the second power may be set according to a network coverage situation. Here, the second power may be boosted by a first set value on the basis of the first power. For example, a 6dB improvement, which may ensure that the inter-resource block filtering result of the common reference signal for the first type of traffic (e.g., 4G traffic) does not change the network coverage for the first type of traffic.
Referring to fig. 6, a signal transmission device is provided. The apparatus comprises a sending module 61, wherein,
the sending module 61 is configured to send, on a first type physical resource block of a shared bandwidth, a common reference signal of a first type service according to a first density; the first type of physical resource block is also used for information transmission of the first type of service; the common reference signal is sent according to a second density on a second type of physical resource block of the shared bandwidth, wherein the second type of physical resource block is also used for information transmission of a second type of service; the second density is lower than the first density.
Wherein, the sending module 61 is further configured to send the common reference signal on N symbols on the first type of physical resource block; wherein N is an integer greater than 1; and further configured to send the common reference signal on the first symbol on the second type of physical resource block.
Wherein, the sending module 61 is further configured to send the common reference signal with a first power over N symbols on the first type of physical resource block; and further configured to transmit the common reference signal with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
The sending module 61 is further configured to transmit at least one of the following information in a symbol other than the first symbol on the second type of physical resource block: the physical downlink control channel information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
The sending module 61 is further configured to send the information of the physical downlink control channel of the first type of service on the first symbol on the physical resource block with shared bandwidth.
The sending module 61 is further configured to configure a third type of physical resource block in the shared bandwidth when the first type of physical resource block performs information transmission of the first type of service by using a first subcarrier interval and the second type of physical resource block performs information transmission of the second type of service by using a second subcarrier interval, where the third type of physical resource block is used to isolate the first type of physical resource block from the second type of physical resource block in a frequency domain.
Referring to fig. 7, a signal transmission apparatus is provided, which includes a receiving module 71, wherein,
the receiving module 71 is configured to receive, on a first type of physical resource block of a shared bandwidth, a common reference signal of a first type of service according to a first density, where the first type of physical resource block is further used for information transmission of the first type of service; the shared bandwidth further includes a first type of physical resource block, configured to receive the common reference signal according to a first density, where the first type of physical resource block is further used for information transmission of a first type of service; the second density is lower than the first density.
Wherein, the receiving module 71 is further configured to receive the common reference signal on N symbols on the first type of physical resource block; wherein N is an integer greater than 1; or receiving the common reference signal on a first symbol on the second type of physical resource block.
Wherein the common reference signal transmitted with a first power is received on N symbols on the first type of physical resource block; or receiving the common reference signal transmitted with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
Referring to fig. 8, an embodiment of the present disclosure further provides a computer device, where the computer device includes: a processor 81 and a memory 82 for storing computer programs operable on the processor 81; wherein the processor 81 is configured to execute the computer program, and wherein the processor 81 is configured to execute, when executing the computer program: sending a public reference signal of a first type of service on a first type of Physical Resource Block (PRB) of a shared bandwidth according to a first density; the PRBs of the first type are also used for information transmission of the services of the first type;
sending the common reference signal according to a second density on a second type of physical resource block of the shared bandwidth, wherein the second type of physical resource block is also used for information transmission of a second type of service; the second density is lower than the first density.
The processor 91 is further configured to execute, when running the computer program: transmitting the common reference signal on N symbols on the first type of physical resource block; wherein N is an integer greater than 1.
The sending a common reference signal according to a second density on a second type of physical resource block of the shared bandwidth includes:
and the common reference signal is sent on the first symbol on the second type of physical resource block.
The processor 91 is further configured to execute, when running the computer program: transmitting the common reference signal with a first power over N symbols on the first type of physical resource block;
the sending the common reference signal on the first symbol on the second type of physical resource block comprises:
transmitting the common reference signal with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
The processor 91 is further configured to execute, when running the computer program: the symbols other than the first symbol on the second class convey information of at least one of: the PDCCH information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
The processor 91 is further configured to execute, when running the computer program: and sending the PDCCH information of the first type of service on a first symbol on the shared bandwidth physical resource block.
The processor 91 is further configured to execute, when running the computer program: when the first type of physical resource block adopts a first subcarrier interval to transmit information of the first type of service, and the second type of physical resource block adopts a second subcarrier interval to transmit information of the second type of service, a third type of physical resource block is configured in the shared bandwidth, wherein the third type of physical resource block is used for separating the first type of physical resource block from the second type of physical resource block in a frequency domain.
The processor 91 is further configured to execute, when running the computer program: receiving a common reference signal of a first type of service according to a first density on a physical resource block of a shared bandwidth, wherein the first type of physical resource block is also used for information transmission of the first type of service;
receiving the common reference signal according to a second density on a second type of physical resource block of the shared bandwidth, wherein the second type of physical resource block is also used for information transmission of a second type of service; the second density is lower than the first density.
The processor 91 is further configured to execute, when running the computer program: receiving the common reference signal on N symbols on the first type of physical resource block; wherein N is an integer greater than 1.
The receiving the common reference signal according to a second density on a second type of physical resource blocks of the shared bandwidth includes:
receiving the common reference signal on a first symbol on the second type of physical resource block.
The processor 91 is further configured to execute, when running the computer program: receiving the common reference signal transmitted with a first power over N symbols on the first type of physical resource block;
the receiving the CRS over the first symbol on the second type of physical resource block comprises:
receiving the common reference signal transmitted with a second power on a first symbol on the second type of physical resource block, wherein the second power is higher than the first power.
The embodiments of the present disclosure further provide a storage medium, where a computer program is stored, and the computer program is executed by a processor, where the processor executes the steps of the method according to any embodiment of the present disclosure when running the computer program.
The above description is only for the preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present disclosure are included in the protection scope of the present disclosure.
Claims (10)
1. A method of signal transmission, comprising:
sending a common reference signal CRS of a first type of service with first power according to first density on N symbols of a first type of physical resource block PRB sharing bandwidth; wherein N is an integer greater than 1; the PRBs of the first type are also used for information transmission of the services of the first type;
transmitting the CRS with a second power according to a second density on a first symbol of a second PRB type of the shared bandwidth; wherein the second density is lower than the first density and the second power is higher than the first power; the second type PRB is also used for information transmission of a second type service; wherein, the symbols other than the first symbol on the second type PRB transmit at least one of the following information: the PDCCH information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
2. The method of claim 1, further comprising:
and sending the PDCCH information of the first type of service on a first symbol on the physical resource block of the shared bandwidth.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
when the first type of PRB performs information transmission of the first type of service using a first subcarrier interval, and the second type of PRB performs information transmission of the second type of service using a second subcarrier interval, a third type of PRB is configured in the shared bandwidth, where the third type of PRB is used to isolate the first type of PRB from the second type of PRB in the frequency domain.
4. A signal transmission method, comprising:
receiving a Common Reference Signal (CRS) of a first type of service transmitted with first power according to first density on N symbols of a first type of Physical Resource Block (PRB) sharing bandwidth, wherein N is an integer greater than 1; the PRBs of the first type are also used for information transmission of the services of the first type;
receiving the CRS transmitted with a second power according to a second density on a first symbol of a second PRB type of the shared bandwidth, wherein the second PRB type is also used for information transmission of a second service; the second density is lower than the first density, and the second power is higher than the first power.
5. A signal transmission arrangement, characterized in that the arrangement comprises a transmitting module, wherein,
the sending module is used for sending a common reference signal CRS of a first type of service with a first power according to a first density on N symbols of a first type of physical resource block PRB of a shared bandwidth; wherein N is an integer greater than 1; the PRBs of the first type are also used for information transmission of the services of the first type;
transmitting the CRS with a second power according to a second density on a first symbol of a second PRB type of the shared bandwidth; wherein the second density is lower than the first density and the second power is higher than the first power; the second PRB is also used for information transmission of a second service; wherein, the symbols other than the first symbol on the second type PRB transmit at least one of the following information: the PDCCH information of the second type of service, the downlink service information of the second type of service, and the uplink service information of the second type of service.
6. The apparatus of claim 5, wherein the transmitting module is further configured to transmit PDCCH information of the first type of traffic on a first symbol on the shared bandwidth physical resource block.
7. The apparatus according to claim 5 or 6, wherein the transmitting module configures a third type of PRB in the shared bandwidth when the first type of PRB employs a first subcarrier spacing for information transmission of the first type of service and the second type of PRB employs a second subcarrier spacing for information transmission of the second type of service, wherein the third type of PRB is used for separating the first type of PRB and the second type of PRB in a frequency domain.
8. A signal transmission device is characterized by comprising a receiving module,
the receiving module is configured to receive, according to a first density, a common reference signal CRS of a first type of service transmitted with a first power on N symbols of a first type of physical resource block PRB sharing a bandwidth, where N is an integer greater than 1; the PRBs of the first type are also used for information transmission of the services of the first type;
receiving the CRS transmitted with a second power according to a second density on a first symbol of a second PRB type of the shared bandwidth, wherein the second PRB type is also used for information transmission of a second service; the second density is lower than the first density, and the second power is higher than the first power.
9. A signal transmission apparatus, comprising: a processor and a memory for storing a computer program capable of running on the processor; wherein the processor is configured to implement the signal transmission method according to any one of claims 1 to 3 or claim 4 when running the computer program.
10. A storage medium, characterized in that the storage medium has stored therein a computer program which, when executed by a processor, implements the signal transmission method of any one of claims 1 to 3 or claim 4.
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