CN109451805A

CN109451805A - The transmission of reference signal and method of reseptance, device, base station and user equipment

Info

Publication number: CN109451805A
Application number: CN201780001445.3A
Authority: CN
Inventors: 赵群; 朱亚军; 张明
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2019-03-08
Anticipated expiration: 2037-09-29
Also published as: CN113873663A; WO2019061304A1; CN109451805B

Abstract

The disclosure is directed to a kind of transmission of reference signal and method of reseptance, device, base station, user equipment and computer readable storage mediums.Wherein, the transmission method of reference signal includes: to judge whether the running time-frequency resource position for being used for transmission current reference signal is overlapped with the running time-frequency resource position that system where base station occupies in advance；If it is determined that the two is overlapped, then current reference signal is transmitted to UE in the running time-frequency resource canceling position of coincidence；Or current reference signal is transmitted to UE in the running time-frequency resource canceling position of coincidence, but transmit current reference signal to UE in non-coincidence running time-frequency resource position；Or current reference signal is transmitted to UE in non-coincidence running time-frequency resource position；Or current reference signal is transmitted to UE in the running time-frequency resource position of coincidence.The embodiment of the present disclosure using different processing mode transmission current reference signals or cancels transmission current reference signal, realization rate is versatile and flexible when current reference signal is overlapped with the running time-frequency resource position occupied in advance.

Description

Reference signal transmission and receiving method, device, base station and user equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving a reference signal, a base station, a user equipment, and a computer-readable storage medium.

Background

The continuous emergence of new generation of new internet applications puts higher requirements on wireless communication technology, driving the wireless communication technology to evolve continuously to meet the application requirements. Currently, cellular mobile communication technology is in the evolution stage of new generation technology. An important feature of the new generation of technology is to support flexible configuration of multiple service types. Different service types have different requirements on wireless Communication technologies, for example, enhanced Mobile broadband (eMBB) service types mainly require high bandwidth and high speed, Ultra Reliable and Low delay (URLLC) service types mainly require high reliability and Low delay, and mass Machine Communication (mtc) service types mainly require large connection number. Therefore, new generation wireless communication systems require flexible and configurable designs to support the transmission of multiple traffic types. In addition, the new generation of wireless communication technology also needs to support coexistence with existing communication technologies and guarantee forward compatibility of technology evolution.

To support a more flexible resource reuse scheme, co-exist with Long Term Evolution (LTE) systems, or be forward compatible with future technologies, a base station may configure some system pre-occupied time-frequency resource locations, referred to as reserved sets(s), for User Equipments (UEs) in a semi-static manner. For example, the system allocates time-frequency resources for transmission of control signaling used by other UEs, reference signal transmission positions of the LTE system when the LTE system coexists in the same frequency band, time-frequency resources reserved for future technology compatibility, and the like. The downlink data transmission of the user does not occupy the occupied time-frequency resources (reserveset (s)). When the downlink data transmission time-frequency resource position indicated by the downlink scheduling information contained in the downlink control signaling of the user is overlapped with the time-frequency resource position of the reserved sets(s), the downlink data transmission of the UE does not occupy the overlapped time-frequency resource position, and coding and physical resource mapping are performed around the overlapped video resource position in a rate matching (rate matching) manner.

In addition, the base station may indicate, in a dynamic signaling manner, that a part of the semi-statically configured reserved sets(s) may not be occupied by downlink data transmission of the user, and another part may be occupied by downlink data transmission of the user. And only when the downlink data transmission scheduling resource position of the user is overlapped with the reserved set(s) resource position which cannot be occupied, carrying out rate matching and physical resource mapping on the user data around the overlapped position.

In a communication system, a reference signal is usually transmitted along with data to help a receiving end perform channel estimation, phase tracking, link quality estimation, and the like, so as to ensure correct reception of the data. The location of the reference signal in the data block is typically predetermined or configured for convenient reception by the user. For some important reference signals, such as demodulation reference signals (DMRS), the UE needs to first estimate the correct channel information from the reception of the reference signals to be able to correctly recover the data information. Therefore, when the time-frequency resource position of the reference signal coincides with the reserved set(s), how to transmit the reference signal is a technical problem to be solved.

Disclosure of Invention

In view of this, the present application discloses a method, an apparatus, a base station, a user equipment and a computer-readable storage medium for transmitting and receiving a reference signal, so as to transmit the current reference signal or cancel transmission of the current reference signal by adopting different processing manners when a time-frequency resource location for transmitting the current reference signal coincides with a time-frequency resource location pre-occupied by a system in which the base station is located.

According to a first aspect of the embodiments of the present disclosure, a method for transmitting a reference signal is provided, which is applied to a base station, and the method includes:

judging whether the time frequency resource position for transmitting the current reference signal is overlapped with the time frequency resource position pre-occupied by the system where the base station is located;

if the time frequency resource position used for transmitting the current reference signal is determined to be overlapped with the time frequency resource position pre-occupied by the system where the base station is located, the current reference signal is transmitted to the UE at the overlapped time frequency resource position; or,

canceling the transmission of the current reference signal to the UE at the overlapped time-frequency resource position, but transmitting the current reference signal to the UE at the non-overlapped time-frequency resource position; or,

transmitting the current reference signal to the UE at a non-coincident time-frequency resource position; or,

and transmitting the current reference signal to the UE at the superposed time-frequency resource position.

In an embodiment, the determining that the time-frequency resource location for transmitting the current reference signal coincides with a time-frequency resource location pre-occupied by a system in which the base station is located includes:

determining that the time-frequency resource position used for transmitting the current reference signal is partially overlapped with a time-frequency resource position pre-occupied by a system where the base station is located;

the cancelling transmission of the current reference signal to the UE at the coinciding time-frequency resource locations, but transmitting the current reference signal to the UE at the non-coinciding time-frequency resource locations, includes:

and changing the transmission mode of the current reference signal positioned on the non-coincident time frequency resource position, and transmitting the current reference signal to the UE at the non-coincident time frequency resource position by adopting the changed transmission mode.

In an embodiment, the transmitting the current reference signal to the UE at the non-coinciding time-frequency resource location includes:

and changing the time frequency resource position for transmitting the current reference signal to a non-coincident time frequency resource position, and transmitting the current reference signal to the UE at the changed non-coincident time frequency resource position.

In an embodiment, the transmitting the current reference signal to the UE at the coinciding time-frequency resource locations includes:

transmitting the current reference signal to the UE at the superposed time-frequency resource position by adopting an original transmission mode; or

And changing the transmission mode of the current reference signal, and transmitting the current reference signal to the UE at the overlapped time-frequency resource position by adopting the changed transmission mode.

In an embodiment, the method further comprises:

and when the changed transmission mode is adopted to transmit the current reference signal to the UE at the non-overlapped time-frequency resource position, sending the current transmission mode of the current reference signal to the UE.

In an embodiment, the method further comprises:

and when the changed non-coincident time frequency resource position transmits the current reference signal to the UE, sending the current transmission position of the current reference signal to the UE.

In an embodiment, the method further comprises:

and when the changed transmission mode is adopted to transmit the current reference signal to the UE at the overlapped time-frequency resource position, sending the current transmission mode of the current reference signal to the UE.

In an embodiment, the changing the time-frequency resource location for transmitting the current reference signal to a non-coincident time-frequency resource location comprises:

and moving at least one of the time-frequency resource position and the frequency-domain resource position for transmitting the current reference signal, so that the moved time-frequency resource position is not overlapped with the time-frequency resource position pre-occupied by the system where the base station is located.

In an embodiment, the method further comprises:

configuring a priority for a time frequency resource position pre-occupied by a system where the base station is located, and sending the priority configured for the time frequency resource position pre-occupied by the system where the base station is located to the UE;

the transmitting the current reference signal to the UE at the coinciding time-frequency resource location includes:

and if the coincident time frequency resource position capable of transmitting the current reference signal is determined according to the priority configured for the pre-occupied time frequency resource position of the system where the base station is located, transmitting the current reference signal to the UE at the determined coincident time frequency resource position.

In an embodiment, the method further comprises:

configuring transmission strategies for different reference signals, and sending the transmission strategies configured for the different reference signals to the UE, wherein the transmission strategies refer to transmission strategies adopted by the different reference signals when time-frequency resource positions of the different reference signals coincide with time-frequency resource positions pre-occupied by systems where the base stations of different priorities are located;

the transmitting the current reference signal to the UE at the non-coincident time-frequency resource position comprises:

transmitting the current reference signal to UE at a non-coincident time-frequency resource position according to a transmission strategy corresponding to the current reference signal;

and transmitting the current reference signal to the UE at the superposed time-frequency resource position according to the transmission strategy corresponding to the current reference signal.

According to a second aspect of the embodiments of the present disclosure, there is provided a method for receiving a reference signal, which is applied to a UE, the method including:

when the time frequency resource position of the current reference signal is coincident with the time frequency resource position pre-occupied by the system where the base station is located, at least one of the transmission position and the transmission mode of the current reference signal is obtained;

and receiving the current reference signal according to at least one of the transmission position and the transmission mode.

In an embodiment, the obtaining at least one of a transmission position and a transmission mode of the current reference signal includes:

receiving information sent by a base station, and acquiring at least one of a transmission position and a transmission mode of the current reference signal according to the information; and/or

And obtaining at least one of the transmission position and the transmission mode of the current reference signal in a predefined mode.

In an embodiment, the information includes at least one of a transmission position and a transmission manner of the current reference signal, or the information is used to determine at least one of a transmission position and a transmission manner of the current reference signal.

In an embodiment, when the information is used to determine at least one of a transmission position and a transmission mode of the current reference signal, the information includes at least one of a priority level configured by the base station for a time-frequency resource position pre-occupied by the system where the base station is located and a transmission policy configured by the base station for different reference signals, and the transmission policy refers to a transmission policy adopted by the different reference signals when the time-frequency resource positions of the different reference signals coincide with the time-frequency resource positions pre-occupied by the system where the base stations with different priority levels are located.

According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for transmitting a reference signal, which is applied to a base station, the apparatus including:

the judging module is configured to judge whether a time frequency resource position used for transmitting the current reference signal is overlapped with a time frequency resource position pre-occupied by a system where the base station is located;

a cancellation transmission module configured to cancel transmission of the current reference signal to the UE at the overlapped time-frequency resource location if the determination module determines that the time-frequency resource location for transmitting the current reference signal is overlapped with a time-frequency resource location pre-occupied by the system where the base station is located; or,

a first transmission module, configured to cancel transmission of the current reference signal to the UE at the overlapped time-frequency resource location, but transmit the current reference signal to the UE at a non-overlapped time-frequency resource location, if the determination module determines that the time-frequency resource location for transmitting the current reference signal is overlapped with a time-frequency resource location pre-occupied by the system where the base station is located; or,

a second transmission module, configured to transmit the current reference signal to the UE at a non-overlapped time-frequency resource location if the determination module determines that the time-frequency resource location for transmitting the current reference signal is overlapped with a time-frequency resource location pre-occupied by the system where the base station is located; or,

and the third transmission module is configured to transmit the current reference signal to the UE at the superposed time-frequency resource position if the judgment module determines that the time-frequency resource position for transmitting the current reference signal is superposed with the time-frequency resource position pre-occupied by the system where the base station is located.

In an embodiment, the first transmission module is configured to, if the determination module determines that the time-frequency resource location for transmitting the current reference signal partially coincides with a time-frequency resource location pre-occupied by the system in which the base station is located, change a transmission mode of the current reference signal located in the non-coinciding time-frequency resource location, and transmit the current reference signal to the UE at the non-coinciding time-frequency resource location by using the changed transmission mode.

In an embodiment, the second transmission module is configured to:

In one embodiment, the third transmission module includes:

a first transmission submodule configured to transmit the current reference signal to the UE at the overlapped time-frequency resource location by using an original transmission mode; or

And the second transmission submodule is configured to change the transmission mode of the current reference signal and transmit the current reference signal to the UE at the overlapped time-frequency resource position by adopting the changed transmission mode.

In one embodiment, the apparatus further comprises:

a first sending module, configured to send the current transmission mode of the current reference signal to the UE when the first transmission module transmits the current reference signal to the UE at the non-overlapped time-frequency resource location by using the changed transmission mode.

In one embodiment, the apparatus further comprises:

a second sending module configured to send the current transmission location of the current reference signal to the UE when the second transmission module transmits the current reference signal to the UE at the changed non-coinciding time-frequency resource location.

In one embodiment, the apparatus further comprises:

a third sending module, configured to send the current transmission mode of the current reference signal to the UE when the second transmission sub-module transmits the current reference signal to the UE at the overlapped time-frequency resource location by using the changed transmission mode.

In an embodiment, the second transmission module is configured to:

In one embodiment, the apparatus further comprises:

a first configuration transmission module configured to: configuring a priority for a time frequency resource position pre-occupied by a system where the base station is located, and sending the priority configured for the time frequency resource position pre-occupied by the system where the base station is located to the UE;

the third transmission module configured to:

and if the coincident time frequency resource position capable of transmitting the current reference signal is determined according to the priority configured by the first configuration sending module for the time frequency resource position pre-occupied by the system where the base station is located, transmitting the current reference signal to the UE at the determined coincident time frequency resource position.

In one embodiment, the apparatus further comprises:

a second configuration transmission module configured to: configuring transmission strategies for different reference signals, and sending the transmission strategies configured for the different reference signals to the UE, wherein the transmission strategies refer to transmission strategies adopted by the different reference signals when time-frequency resource positions of the different reference signals coincide with time-frequency resource positions pre-occupied by systems where the base stations of different priorities are located;

the second transmission module configured to:

transmitting the current reference signal to UE at a non-coincident time-frequency resource position according to the transmission strategy corresponding to the current reference signal configured by the second configuration transmitting module;

the third transmission module configured to:

and transmitting the current reference signal to the UE at the superposed time-frequency resource position according to the transmission strategy which is configured by the second configuration sending module and corresponds to the current reference signal.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for receiving a reference signal, which is applied to a UE, the apparatus including:

an obtaining module, configured to obtain at least one of a transmission position and a transmission mode of a current reference signal when a time-frequency resource position of the current reference signal coincides with a time-frequency resource position pre-occupied by a system where the base station is located;

a receiving module configured to receive the current reference signal according to at least one of the transmission position and the transmission mode obtained by the obtaining module.

In one embodiment, the obtaining module includes:

the receiving submodule is configured to receive information sent by a base station and obtain at least one of a transmission position and a transmission mode of the current reference signal according to the information; and/or

An obtaining submodule configured to obtain at least one of a transmission position and a transmission manner of the current reference signal in a predefined manner.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a base station, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

According to a sixth aspect of the embodiments of the present disclosure, there is provided a user equipment, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

According to a seventh aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described reference signal transmission method.

According to an eighth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described method of receiving a reference signal.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when the time frequency resource position used for transmitting the current reference signal is coincident with the time frequency resource position pre-occupied by the system where the base station is located, different processing modes are adopted to transmit the current reference signal or cancel the transmission of the current reference signal, and the implementation means is flexible and various.

When the time frequency resource position of the current reference signal is overlapped with the time frequency resource position pre-occupied by the system where the base station is located, at least one of the transmission position and the transmission mode of the current reference signal is obtained, and the current reference signal is received according to the obtained result, so that the current reference signal can be received when the time frequency resource position of the current reference signal is overlapped with the time frequency resource position pre-occupied by the system where the base station is located.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1A is a flowchart illustrating a method for transmitting a reference signal according to an exemplary embodiment of the present application;

fig. 1B is a schematic diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 1C is another diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 1D is another diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 1E is another schematic diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 2A is a flowchart illustrating another method for transmitting a reference signal according to an exemplary embodiment of the present application;

fig. 2B is another schematic diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 3A is a flowchart illustrating another method for transmitting a reference signal according to an exemplary embodiment of the present application;

fig. 3B is another diagram illustrating that a time-frequency resource location for transmitting a current reference signal coincides with a time-frequency resource location pre-occupied by a system in which a base station is located according to an exemplary embodiment of the present application;

fig. 4 is a flowchart of a reference signal receiving method according to an exemplary embodiment of the present application;

fig. 5 is a block diagram illustrating an apparatus for transmitting a reference signal according to an exemplary embodiment;

FIG. 6 is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

FIG. 7A is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

FIG. 7B is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

FIG. 7C is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

FIG. 8A is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

FIG. 8B is a block diagram illustrating another apparatus for transmission of reference signals in accordance with an example embodiment;

fig. 9 is a block diagram illustrating an apparatus for receiving a reference signal according to an exemplary embodiment;

fig. 10 is a block diagram illustrating another apparatus for receiving a reference signal in accordance with an example embodiment;

FIG. 11 is a block diagram illustrating a transmission apparatus suitable for reference signals in accordance with an example embodiment;

fig. 12 is a block diagram illustrating a receiving apparatus adapted for a reference signal according to an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Fig. 1A is a flowchart of a transmission method of a reference signal according to an exemplary embodiment of the present application, which is described from a base station side, and as shown in fig. 1A, the transmission method of the reference signal includes:

in step S101, it is determined whether the time-frequency resource location for transmitting the current reference signal coincides with the time-frequency resource location pre-occupied by the system in which the base station is located, and if it is determined that the time-frequency resource location for transmitting the current reference signal coincides with the time-frequency resource location pre-occupied by the system in which the base station is located, step S102, step S103, step S104, or step S105 is performed.

The time frequency resource position used for transmitting the current reference signal is partially overlapped with the time frequency resource position pre-occupied by the system where the base station is located, and the time frequency resource position used for transmitting the current reference signal is completely overlapped with the time frequency resource position pre-occupied by the system where the base station is located.

In step S102, transmission of the current reference signal to the UE is cancelled at the coinciding time-frequency resource locations.

In this embodiment, when the time-frequency resource location for transmitting the current reference signal completely coincides with the time-frequency resource location pre-occupied by the system where the base station is located, the transmission of the current reference signal to the UE may be cancelled at the coinciding time-frequency resource location.

In step S103, the transmission of the current reference signal to the UE is cancelled at the coinciding time-frequency resource locations, but the current reference signal is transmitted to the UE at the non-coinciding time-frequency resource locations.

In this embodiment, when the time-frequency resource location for transmitting the current reference signal partially overlaps with the time-frequency resource location pre-occupied by the system where the base station is located, the transmission of the current reference signal to the UE may be cancelled at the overlapped time-frequency resource location, but the transmission of the current reference signal to the UE may be cancelled at a non-overlapped time-frequency resource location.

As shown in FIG. 1B, the time-frequency resource position of the demodulation reference signal (DMRS) coincides with the time-frequency resource position of the reserve set1, the base station cancels the transmission of the DMRS to the UE at the reserve set1, the time-frequency resource positions of the phase tracking reference signal (PT-RS) and the cell reference signal (C-RS) both coincide with the time-frequency resource position of the reserve set2, and the base station cancels the transmission of the PT-RS and the C-RS to the UE at the reserve set 2.

In order to reduce the influence of canceling the transmission of the current reference signal at the overlapped time-frequency resource position on the data reception of the receiving end, the transmission mode of the current reference signal at the non-overlapped time-frequency resource position can be changed, and the changed transmission mode is adopted to transmit the current reference signal to the UE at the non-overlapped time-frequency resource position. Wherein changing the transmission manner may include, but is not limited to, at least one of increasing transmission power, changing a reference signal sequence, and changing a length of the reference signal sequence.

In addition, when the base station transmits the current reference signal to the UE at the non-overlapped time-frequency resource position by using the changed transmission mode, the base station may also send the current transmission mode of the current reference signal to the UE, so that the UE may know the current transmission mode of the current reference signal by methods such as predefined, semi-static configuration, or dynamic indication, and thus may correctly receive the current reference signal.

It should be noted that the base station and the UE use the same or corresponding manners to obtain the current transmission manner of the current reference signal, for example, both use a predefined manner to obtain the current transmission manner of the current reference signal, and for example, the base station notifies the UE of the current transmission manner of the current reference signal through a semi-static configuration manner, and the UE receives the current transmission manner of the current reference signal semi-statically configured by the base station.

In step S104, a current reference signal is transmitted to the UE at a non-coinciding time-frequency resource location.

In this embodiment, when the time-frequency resource location for transmitting the current reference signal partially coincides or completely coincides with the time-frequency resource location pre-occupied by the system in which the base station is located, the time-frequency resource location for transmitting the current reference signal may be changed to a non-coinciding time-frequency resource location, and the current reference signal is transmitted to the UE at the changed non-coinciding time-frequency resource location.

Wherein, the time frequency resource position for transmitting the current reference signal can be changed to a non-coincident time frequency resource position by adopting the following modes: and moving at least one of the time frequency resource position and the frequency domain resource position for transmitting the current reference signal so as to ensure that the moved time frequency resource position is not overlapped with the time frequency resource position pre-occupied by the system where the base station is located. For example, as shown in fig. 1C, the transmission of the current reference signals DMRS, PT-RS, and C-RS is moved forward or backward in the time domain for the minimum, and is moved upward or downward in the frequency domain for the minimum, so that the time-frequency resource position after moving does not coincide with the time-frequency resource position pre-occupied by the system where the base station is located.

In addition, when the base station transmits the current reference signal to the UE at the changed non-overlapped time-frequency resource position, the base station may also send the current transmission position of the current reference signal to the UE, so that the UE may know the current transmission position of the current reference signal by methods such as pre-definition, semi-static configuration, or dynamic indication, and thus may correctly receive the current reference signal.

It should be noted that the base station and the UE use the same or corresponding manners to obtain the current transmission position of the current reference signal, for example, both use a predefined manner to obtain the current transmission position of the current reference signal, and for example, the base station notifies the UE of the current transmission position of the current reference signal through a semi-static configuration manner, and the UE receives the current transmission position of the current reference signal semi-statically configured by the base station.

In step S105, a current reference signal is transmitted to the UE at the coinciding time-frequency resource locations.

In this embodiment, when the time-frequency resource location for transmitting the current reference signal partially coincides or completely coincides with the time-frequency resource location pre-occupied by the system in which the base station is located, the current reference signal may be transmitted to the UE at the coinciding time-frequency resource location by using the original transmission mode, or the transmission mode of the current reference signal may be changed, and the current reference signal may be transmitted to the UE at the coinciding time-frequency resource location by using the changed transmission mode. Wherein changing the transmission manner may include, but is not limited to, at least one of increasing transmission power, changing a reference signal sequence, and changing a length of the reference signal sequence.

As shown in FIG. 1D, the time-frequency resource position of the DMRS coincides with that of the reserve set1, the base station transmits the DMRS to the UE at the reserve set1 by using the original transmission mode, the time-frequency resource positions of the phase tracking reference signal (PT-RS) and the cell reference signal (C-RS) both coincide with that of the reserve set2, and the base station transmits the PT-RS and the C-RS to the UE at the reserve set2 by using the original transmission mode.

As shown in FIG. 1E, the time-frequency resource position of the DMRS coincides with the time-frequency resource position of the reserve set1, the base station transmits the DMRS to the UE at the reserve set1 by using the changed transmission mode, the time-frequency resource positions of the phase tracking reference signal (PT-RS) and the cell reference signal (C-RS) both coincide with the time-frequency resource position of the reserve set2, and the base station transmits the PT-RS and the C-RS to the UE at the reserve set2 by using the changed transmission mode.

If the changed transmission mode is adopted to transmit the current reference signal to the UE at the overlapped time-frequency resource position, the current transmission mode of the current reference signal can be sent to the UE when the changed transmission mode is adopted to transmit the current reference signal to the UE at the overlapped time-frequency resource position, so that the UE can know the current transmission mode of the current reference signal through methods such as pre-definition, semi-static configuration or dynamic indication, and the like, and the current reference signal can be correctly received.

In the above embodiment, when the time-frequency resource position for transmitting the current reference signal coincides with the time-frequency resource position pre-occupied by the system where the base station is located, different processing methods are adopted to transmit the current reference signal or cancel transmission of the current reference signal, so that the implementation means is flexible and various.

Fig. 2A is a flowchart of another reference signal transmission method according to an exemplary embodiment of the present application, which is described from the base station side, and as shown in fig. 2A, the reference signal transmission method includes:

in step S201, a priority is configured for the time-frequency resource location pre-occupied by the system where the base station is located, and the priority configured for the time-frequency resource location pre-occupied by the system where the base station is located is sent to the UE.

Because the pre-occupied time frequency resources of the system are various, and the types of the reference signals transmitted along with the user data are also various, different processing methods can be used for the combination of different pre-occupied time frequency resources and user reference signals. For example, for a reference signal that is important for receiving user data, such as a pre-DMRS, it should be ensured that the reference signal is correctly received as much as possible, and therefore, it is more suitable to transmit the reference signal to the UE at a coinciding time-frequency resource location or transmit the reference signal to the UE at a non-coinciding time-frequency resource location by using an original transmission mode; for some reference signals which are relatively secondary to the user data reception, the reference signal transmission to the UE may be cancelled at the overlapped time-frequency resource position, or the transmission mode of the reference signal may be changed, and the reference signal may be transmitted to the UE at the overlapped time-frequency resource position by using the changed transmission mode.

In order to flexibly deal with the coincidence of different reference signals and the time frequency resource positions pre-occupied by the system, when the base station configures the priority for the time frequency resource positions pre-occupied by the system, the base station can configure different priorities for the different time frequency resource positions and configure the priorities to the UE through semi-static or dynamic downlink signals.

In step S202, it is determined whether the position of the time-frequency resource used for transmitting the current reference signal coincides with the position of the time-frequency resource pre-occupied by the system in which the base station is located, and if it is determined that the position of the time-frequency resource used for transmitting the current reference signal coincides with the position of the time-frequency resource pre-occupied by the system in which the base station is located, step S203 is executed.

In step S203, if a coinciding time-frequency resource location capable of transmitting the current reference signal is determined according to the priority configured for the time-frequency resource location pre-occupied by the system in which the base station is located, the current reference signal is transmitted to the UE at the determined coinciding time-frequency resource location.

In this embodiment, when the same Reference Signal (RS) coincides with a different priority of a reserve set, the reference signal is not transmitted on a high priority of the reserve set, but may be transmitted on a low priority of the reserve set.

For example, the base station sets a high priority for reserve set1 and a low priority for reserve set2, as shown in fig. 2B, when the time-frequency resource position of the current RS coincides with both reserve set1 and reserve set2, it may be determined that the coinciding time-frequency resource position capable of transmitting the current RS is reserve set2, and then the current RS is transmitted to the UE on reserve set 2.

In the embodiment, the priority is configured for the time frequency resource position pre-occupied by the system where the base station is located, the overlapped time frequency resource position capable of transmitting the current reference signal is determined according to the configured priority, and the current reference signal is transmitted to the UE at the determined overlapped time frequency resource position, so that the time frequency resource can be managed more flexibly, and the data receiving quality of the user can be ensured.

Fig. 3A is a flowchart of another reference signal transmission method according to an exemplary embodiment of the present application, which is described from the base station side, and as shown in fig. 3A, the reference signal transmission method includes:

in step S301, transmission strategies are configured for different reference signals, and the transmission strategies configured for the different reference signals are sent to the UE, where the transmission strategies refer to transmission strategies adopted by the different reference signals when time-frequency resource positions of the different reference signals coincide with time-frequency resource positions pre-occupied by systems in which base stations with different priorities are located.

The transmission policy may be predefined or configured to the UE by the base station in a semi-static manner.

In this embodiment, when the time-frequency resource positions of different reference signals overlap with the time-frequency resource positions pre-occupied by the system where the base station with the same priority is located, reference signals important for user data reception, such as a pre-demodulation reference signal (DMRS), may be transmitted at the overlapped time-frequency resource positions, but some reference signals, such as C-RS, that are relatively less important for user data reception may not be transmitted at the overlapped time-frequency resource positions. For example, as shown in fig. 3B, the time-frequency resource positions of the DMRS and the CRS both coincide with reserve set1, the DMRS may be transmitted on reserve set1, but the C-RS may not be transmitted.

In step S302, it is determined whether the position of the time-frequency resource used for transmitting the current reference signal coincides with the position of the time-frequency resource pre-occupied by the system in which the base station is located, and if it is determined that the position of the time-frequency resource used for transmitting the current reference signal coincides with the position of the time-frequency resource pre-occupied by the system in which the base station is located, step S303 or step S304 is performed.

In step S303, the current reference signal is transmitted to the UE at a non-overlapping time-frequency resource location according to the transmission policy corresponding to the current reference signal.

And if the configured transmission strategy is that the current reference signal can be transmitted to the UE at the non-overlapped time-frequency resource position, transmitting the current reference signal to the UE at the non-overlapped time-frequency resource position.

In step S304, the current reference signal is transmitted to the UE at the coinciding time-frequency resource location according to the transmission strategy corresponding to the current reference signal.

And if the configured transmission strategy is that the current reference signal can be transmitted to the UE at the overlapped time-frequency resource position, transmitting the current reference signal to the UE at the overlapped time-frequency resource position.

In the embodiment, the transmission strategies are configured for different reference signals, and the current reference signal is transmitted according to the transmission strategies, so that the time-frequency resources can be managed more flexibly, and the data receiving quality of a user can be ensured.

Fig. 4 is a flowchart of a method for receiving a reference signal according to an exemplary embodiment of the present application, which is described from the UE side, and as shown in fig. 4, the method for receiving a reference signal includes:

in step S401, when the time-frequency resource location of the current reference signal coincides with the time-frequency resource location pre-occupied by the system where the base station is located, at least one of the transmission location and the transmission mode of the current reference signal is obtained.

Wherein at least one of the transmission position and the transmission mode of the current reference signal can be obtained in a plurality of modes, for example, at least one of the following modes:

in the first mode, information sent by a base station is received, and at least one of a transmission position and a transmission mode of a current reference signal is obtained according to the information.

The information may include at least one of a transmission position and a transmission manner of the current reference signal, and may also be used to determine at least one of a transmission position and a transmission manner of the current reference signal.

When the information is used for determining at least one of the transmission position and the transmission mode of the current reference signal, the information comprises at least one of the priority level configured by the base station for the time-frequency resource position pre-occupied by the system where the base station is located and the transmission strategy configured by the base station for different reference signals, and the transmission strategy is adopted by different reference signals when the time-frequency resource positions of different reference signals coincide with the time-frequency resource positions pre-occupied by the system where the base stations with different priority levels are located.

In a second mode, at least one of a transmission position and a transmission mode of the current reference signal is obtained in a predefined mode.

In step S402, a current reference signal is received according to at least one of a transmission position and a transmission method.

The UE may receive the current reference signal according to at least one of the transmission location and the transmission manner after obtaining the at least one of the transmission location and the transmission manner.

In the embodiment, when the time-frequency resource position of the current reference signal coincides with the time-frequency resource position pre-occupied by the system where the base station is located, at least one of the transmission position and the transmission mode of the current reference signal is obtained, and the current reference signal is received according to the obtained information, so that the current reference signal can be received when the time-frequency resource position of the current reference signal coincides with the time-frequency resource position pre-occupied by the system where the base station is located.

Fig. 5 is a block diagram illustrating an apparatus for transmitting a reference signal, which may be located in a base station, according to an exemplary embodiment, as shown in fig. 5, the apparatus includes: a judgment module 51 and any one of a cancel transmission module 52, a first transmission module 53, a second transmission module 54 and a third transmission module 55.

The determining module 51 is configured to determine whether the time-frequency resource location for transmitting the current reference signal coincides with a time-frequency resource location pre-occupied by the system in which the base station is located.

The cancellation transmission module 52 is configured to cancel transmission of the current reference signal to the UE at the overlapped time-frequency resource location if the determining module 51 determines that the time-frequency resource location for transmission of the current reference signal is overlapped with the time-frequency resource location pre-occupied by the system in which the base station is located.

The first transmission module 53 is configured to cancel transmission of the current reference signal to the UE at the overlapped time-frequency resource location, but transmit the current reference signal to the UE at the non-overlapped time-frequency resource location, if the determining module 51 determines that the time-frequency resource location for transmitting the current reference signal is overlapped with the pre-occupied time-frequency resource location of the system where the base station is located.

In an embodiment, the first transmission module 53 may be configured to change a transmission manner of the current reference signal located in a non-overlapped time frequency resource position if the determination module determines that the time frequency resource position for transmitting the current reference signal partially overlaps with a time frequency resource position pre-occupied by a system in which the base station is located, and transmit the current reference signal to the UE in the non-overlapped time frequency resource position by using the changed transmission manner.

The second transmission module 54 is configured to transmit the current reference signal to the UE at a non-overlapped time-frequency resource position if the determining module 51 determines that the time-frequency resource position used for transmitting the current reference signal is overlapped with the time-frequency resource position pre-occupied by the system where the base station is located.

In an embodiment, the second transmission module 54 may be configured to: and changing the time frequency resource position for transmitting the current reference signal to a non-coincident time frequency resource position, and transmitting the current reference signal to the UE at the changed non-coincident time frequency resource position.

The third transmission module 55 is configured to, if the determining module 51 determines that the time-frequency resource location for transmitting the current reference signal is overlapped with the pre-occupied time-frequency resource location of the system where the base station is located, transmit the current reference signal to the UE at the overlapped time-frequency resource location.

Fig. 6 is a block diagram of another transmission apparatus for reference signals according to an exemplary embodiment, and as shown in fig. 6, on the basis of the above embodiment shown in fig. 5, the third transmission module 55 may include: the first transmission submodule 551 or the second transmission submodule 552.

The first transmission submodule 551 is configured to transmit the current reference signal to the UE at the coinciding time-frequency resource locations using the original transmission mode.

The second transmission submodule 552 is configured to change the transmission mode of the current reference signal, and transmit the current reference signal to the UE at the overlapped time-frequency resource position by using the changed transmission mode.

The embodiment can adopt the original transmission mode or the changed transmission mode to transmit the current reference signal to the UE at the superposed time-frequency resource position, and the realization means is flexible and various.

Fig. 7A is a block diagram of another apparatus for transmitting a reference signal according to an exemplary embodiment, and as shown in fig. 7A, on the basis of the embodiment shown in fig. 5, the apparatus may further include: a first transmitting module 56.

The first sending module 56 is configured to send the current transmission mode of the current reference signal to the UE when the first transmission module 53 adopts the changed transmission mode to transmit the current reference signal to the UE at the non-coinciding time-frequency resource location.

When the base station transmits the current reference signal to the UE at the non-overlapped time-frequency resource position by adopting the changed transmission mode, the base station can also send the current transmission mode of the current reference signal to the UE, so that the UE can acquire the current transmission mode of the current reference signal by methods such as pre-definition, semi-static configuration or dynamic indication, and the like, and can correctly receive the current reference signal.

In the above embodiment, the UE is enabled to know the current transmission mode of the current reference signal by sending the current transmission mode of the current reference signal to the UE, so that the current reference signal can be correctly received.

Fig. 7B is a block diagram of another apparatus for transmitting a reference signal according to an exemplary embodiment, and as shown in fig. 7B, on the basis of the embodiment shown in fig. 5, the apparatus may further include: a second sending module 57.

The second transmitting module 57 is configured to transmit the current transmission location of the current reference signal to the UE when the second transmitting module 54 transmits the current reference signal to the UE at the changed non-coinciding time-frequency resource location.

In the above embodiment, the current transmission position of the current reference signal is sent to the UE, so that the UE knows the current transmission position of the current reference signal, and thus can correctly receive the current reference signal.

Fig. 7C is a block diagram of another apparatus for transmitting a reference signal according to an exemplary embodiment, as shown in fig. 7C, the apparatus may further include, based on the embodiment shown in fig. 6:

the third sending module 58 is configured to send the current transmission mode of the current reference signal to the UE when the second transmission submodule 552 adopts the changed transmission mode to transmit the current reference signal to the UE at the overlapped time-frequency resource position.

Fig. 8A is a block diagram of another apparatus for transmitting a reference signal according to an exemplary embodiment, and as shown in fig. 8A, on the basis of the embodiment shown in fig. 5, the apparatus may further include: a first configuration sending module 59.

The first configuration transmission module 59 is configured to: and configuring the priority for the time frequency resource position pre-occupied by the system where the base station is located, and sending the priority configured for the time frequency resource position pre-occupied by the system where the base station is located to the UE.

The third transmission module 55 is configured to: if the overlapped time-frequency resource position capable of transmitting the current reference signal is determined according to the priority configured for the time-frequency resource position pre-occupied by the system where the base station is located by the first configuration sending module 59, the current reference signal is transmitted to the UE at the determined overlapped time-frequency resource position.

Fig. 8B is a block diagram of another apparatus for transmitting a reference signal according to an exemplary embodiment, and as shown in fig. 8B, on the basis of the embodiment shown in fig. 5, the apparatus may further include: a second configuration transmission module 60.

The second configuration transmission module 60 is configured to: and configuring transmission strategies for different reference signals, and sending the transmission strategies configured for the different reference signals to the UE, wherein the transmission strategies refer to the transmission strategies adopted by the different reference signals when the time-frequency resource positions of the different reference signals coincide with the time-frequency resource positions pre-occupied by the systems where the base stations with different priorities are located. The transmission policy may be predefined or configured to the UE by the base station in a semi-static manner.

The second transmission module 54 may be configured to: and transmitting the current reference signal to the UE at the non-coincident time-frequency resource position according to the transmission strategy corresponding to the current reference signal configured by the second configuration transmitting module 60.

The third transmission module 55 may be configured to: and transmitting the current reference signal to the UE at the overlapped time-frequency resource position according to the transmission strategy corresponding to the current reference signal configured by the second configuration transmitting module 60.

Fig. 9 is a block diagram illustrating an apparatus for receiving a reference signal, which may be located in a UE, according to an exemplary embodiment, and as shown in fig. 9, the apparatus includes: an obtaining module 91 and a receiving module 92.

The obtaining module 91 is configured to obtain at least one of a transmission position and a transmission mode of the current reference signal when the time-frequency resource position of the current reference signal coincides with a time-frequency resource position pre-occupied by a system in which the base station is located.

The receiving module 92 is configured to receive the current reference signal according to at least one of the transmission position and the transmission mode obtained by the obtaining module 91.

Fig. 10 is a block diagram of another reference signal receiving apparatus according to an exemplary embodiment, and as shown in fig. 10, on the basis of the embodiment shown in fig. 9, the obtaining module 91 may include: at least one of a receive sub-module 911 and an obtain sub-module 912.

The receiving sub-module 911 is configured to receive information sent by the base station, and obtain at least one of a transmission position and a transmission mode of the current reference signal according to the information.

The obtaining sub-module 912 is configured to obtain at least one of a transmission position and a transmission manner of the current reference signal in a predefined manner.

In the embodiment, at least one of the transmission position and the transmission mode of the current reference signal is obtained by receiving the information sent by the base station or in a predefined mode, so that the implementation means is flexible and various.

Fig. 11 is a block diagram illustrating another transmission apparatus suitable for a reference signal according to an example embodiment. Apparatus 1100 may be provided as a base station. Referring to fig. 11, the apparatus 1100 includes a processing component 1122, a wireless transmit/receive component 1124, an antenna component 1126, and a signal processing portion specific to the wireless interface, the processing component 1122 may further include one or more processors.

One of the processors in processing component 1122 may be configured to:

judging whether the time frequency resource position for transmitting the current reference signal is superposed with the time frequency resource position pre-occupied by the system where the base station is located;

canceling transmission of the current reference signal to the UE at the overlapped time-frequency resource position, but transmitting the current reference signal to the UE at the non-overlapped time-frequency resource position; or,

transmitting the current reference signal to the UE at the non-coincident time frequency resource position; or,

and transmitting the current reference signal to the UE at the overlapped time-frequency resource position.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions executable by the processing component 1122 of the apparatus 1100 to perform the method of reference signal transmission is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Fig. 12 is a block diagram illustrating a receiving apparatus adapted for a reference signal according to an example embodiment. For example, the apparatus 1200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, or other user device.

Referring to fig. 12, the apparatus 1200 may include one or more of the following components: processing component 1202, memory 1204, power component 1206, multimedia component 1208, audio component 1210, input/output (I/O) interface 1212, sensor component 1214, and communications component 1216.

The processing component 1202 generally controls overall operation of the apparatus 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing element 1202 may include one or more processors 1220 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 1202 can include one or more modules that facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 can include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

One of the processors 1220 in the processing component 1202 may be configured to:

when the time frequency resource position of the current reference signal is superposed with the time frequency resource position pre-occupied by the system where the base station is located, at least one of the transmission position and the transmission mode of the current reference signal is obtained;

The memory 1204 is configured to store various types of data to support operation at the device 1200. Examples of such data include instructions for any application or method operating on the device 1200, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1204 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

A power supply component 1206 provides power to the various components of the device 1200. Power components 1206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for apparatus 1200.

The multimedia component 1208 includes a screen that provides an output interface between the device 1200 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 1200 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

Audio component 1210 is configured to output and/or input audio signals. For example, audio component 1210 includes a Microphone (MIC) configured to receive external audio signals when apparatus 1200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1204 or transmitted via the communication component 1216. In some embodiments, audio assembly 1210 further includes a speaker for outputting audio signals.

The I/O interface 1212 provides an interface between the processing component 1202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 1214 includes one or more sensors for providing various aspects of state assessment for the apparatus 1200. For example, the sensor assembly 1214 may detect the open/closed state of the device 1200, the relative positioning of the components, such as the display and keypad of the apparatus 1200, the sensor assembly 1214 may also detect a change in the position of the apparatus 1200 or a component of the apparatus 1200, the presence or absence of user contact with the apparatus 1200, the orientation or acceleration/deceleration of the apparatus 1200, and a change in the temperature of the apparatus 1200. The sensor assembly 1214 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communications component 1216 is configured to facilitate communications between the apparatus 1200 and other devices in a wired or wireless manner. The apparatus 1200 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1216 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1216 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described reference signal receiving methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1204 comprising instructions, executable by the processor 1220 of the apparatus 1200 to perform the above-described reference signal receiving method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for transmitting a reference signal, applied to a base station, the method comprising:

2. The method of claim 1, wherein the determining that the time-frequency resource location for transmitting the current reference signal coincides with a time-frequency resource location pre-occupied by the system in which the base station is located comprises:

3. The method of claim 1, wherein transmitting the current reference signal to a UE at a non-coinciding time-frequency resource location comprises:

4. The method of claim 1, wherein transmitting the current reference signal to the UE at the coinciding time-frequency resource locations comprises:

5. The method of claim 2, further comprising:

6. The method of claim 3, further comprising:

7. The method of claim 4, further comprising:

8. The method of claim 3, wherein the changing the time-frequency resource location for transmitting the current reference signal to a non-coincident time-frequency resource location comprises:

9. The method of claim 1, further comprising:

10. The method of claim 1, further comprising:

11. A method for receiving a reference signal, applied to a UE, the method comprising:

12. The method of claim 11, wherein the obtaining at least one of a transmission location and a transmission mode of the current reference signal comprises:

13. The method of claim 12, wherein the information comprises or is used for determining at least one of a transmission position and a transmission manner of the current reference signal.

14. The method according to claim 13, wherein when the information is used to determine at least one of a transmission position and a transmission manner of the current reference signal, the information includes at least one of a priority level configured by a base station for a time-frequency resource position pre-occupied by the system where the base station is located and the transmission policy configured by the base station for different reference signals, and the transmission policy refers to a transmission policy adopted by the different reference signals when the time-frequency resource positions of the different reference signals coincide with the time-frequency resource positions pre-occupied by the systems where the base stations with different priority levels are located.

15. An apparatus for transmitting a reference signal, applied to a base station, the apparatus comprising:

16. The apparatus of claim 15, wherein the first transmission module is configured to change a transmission mode of the current reference signal located in the non-overlapped time-frequency resource location if the determining module determines that the time-frequency resource location for transmitting the current reference signal partially overlaps with a time-frequency resource location pre-occupied by a system in which the base station is located, and transmit the current reference signal to the UE at the non-overlapped time-frequency resource location by using the changed transmission mode.

17. The apparatus of claim 15, wherein the second transmission module is configured to:

18. The apparatus of claim 15, wherein the third transmission module comprises:

19. The apparatus of claim 16, further comprising:

20. The apparatus of claim 17, further comprising:

21. The apparatus of claim 18, further comprising:

22. The apparatus of claim 17, wherein the second transmission module is configured to:

23. The apparatus of claim 15, further comprising:

the third transmission module configured to:

24. The apparatus of claim 15, further comprising:

the second transmission module configured to:

the third transmission module configured to:

25. An apparatus for receiving a reference signal, applied to a UE, the apparatus comprising:

26. The apparatus of claim 25, wherein the obtaining module comprises:

27. The apparatus of claim 26, wherein the information comprises or is used to determine at least one of a transmission position and a transmission manner of the current reference signal.

28. The apparatus according to claim 27, wherein when the information is used to determine at least one of a transmission location and a transmission manner of the current reference signal, the information includes at least one of a priority level configured by a base station for a time-frequency resource location pre-occupied by the system where the base station is located and the transmission policy configured by the base station for different reference signals, and the transmission policy refers to a transmission policy adopted by the different reference signals when the time-frequency resource locations of the different reference signals coincide with the time-frequency resource locations pre-occupied by the systems where the base stations with different priority levels are located.

29. A base station, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

if the time frequency resource position used for transmitting the current reference signal is determined to be overlapped with the time frequency resource position pre-occupied by the system where the base station is located, the current reference signal is transmitted to the UE at the overlapped time frequency resource position; or

Canceling the transmission of the current reference signal to the UE at the overlapped time-frequency resource position, but transmitting the current reference signal to the UE at the non-overlapped time-frequency resource position; or

Transmitting the current reference signal to the UE at a non-coincident time-frequency resource position; or

30. A user device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

31. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the steps of the method for transmission of reference signals of claim 1.

32. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, realizes the steps of the method of reception of reference signals according to claim 11.