WO2014113961A1

WO2014113961A1 - Method for transmitting reference signal, base station and user equipment

Info

Publication number: WO2014113961A1
Application number: PCT/CN2013/070957
Authority: WO
Inventors: 杨建兵; 任晓涛; 吴海; 程型清; 吴作敏; 治欣慰; 孙静原
Original assignee: 华为技术有限公司
Priority date: 2013-01-24
Filing date: 2013-01-24
Publication date: 2014-07-31
Also published as: CN104160766B; CN104160766A

Abstract

Disclosed are a method for transmitting a reference signal, a base station and a user equipment. The method comprises: determining at least one set of resource configuration parameters of a user equipment (UE), the at least one set of resource configuration parameters comprising a resource configuration parameter of a time-frequency tracking reference signal, the time-frequency tracking reference signal being borne on a carrier with a new carrier type; and sending the at least one set of resource configuration parameters to the UE. In the method for transmitting a reference signal in the embodiments of the present invention, by notifying the user equipment of the resource configuration parameter of the time-frequency tracking reference signal borne on the NCT carrier, the user equipment can accurately perform rate matching and/or interference elimination in various systems adopting an NCT carrier, thereby enabling normal communication between the base station and the user equipment, and improving the user experience.

Description

Method, base station and user equipment for transmitting reference signals

Embodiments of the present invention relate to the field of communications, and more particularly, to a method, base station, and user equipment for transmitting reference signals. Background technique

In order to improve the user perception of user equipment at the edge of the cell, the Long Term Evolution Advanced (LTE-A) system adopts Coordinated Multiple Point (CoMP) technology. Currently, for a user equipment supporting CoMP, the serving base station first configures multiple physical downlink shared channel resource element mapping and Quasi-Co-Location ("PQ") parameters for the user equipment. The set of PQ parameters may include a cell-specific reference signal (Cell-specific Reference Signal) and a channel state information reference signal (CSI-RS). Resource configuration parameters. When the serving base station performs the actual scheduling on the user equipment, a second bit is added to the downlink control signaling (Downlink Control Information, which is called "DCI") sent to the user equipment to indicate that the user equipment adopts the multiple sets. Which set of PQ parameters in the PQ parameters are used for signaling and data transmission, and the user equipment can perform rate matching according to the indication to determine which resource units (Resource Element, referred to as "RE") are used for data transmission. The user equipment can then demodulate the data on the REs and receive CRS and CSI-RS according to the indication to estimate the corresponding timing offset and frequency offset, and perform time-frequency domain correction on the received data.

In order to further improve the effective utilization of the spectrum, the researchers proposed a carrier of a new carrier type (New Carrier Type, called "NCT"), and carried a new reference signal for time-frequency tracking in the NCT carrier. The new time-frequency tracking reference signal is different from the CRS in the existing normal carrier, the Demodulation Reference Signal ("DMRS") and the CSI-RS, and the time-frequency tracking reference signal occupies the time-frequency. The resource is lower than the time-frequency resource occupied by the CRS in the existing normal carrier. Therefore, in a CoMP scenario, if one or more transmission points use an NCT carrier, the user equipment has no way to know the time-frequency resource configuration information of the time-frequency tracking reference signal transmitted on the NCT carrier of the currently serving transmission point, for example, Time-frequency tracking reference signal week Period, subframe offset, time-frequency tracking, number of RBs occupied by the reference signal, location of the RBs in the frequency domain, and position and number of occupied REs of the time-frequency tracking reference signal within one RB, etc., the user equipment cannot Perform rate matching and correctly demodulate downlink data, affecting the normal demodulation and user experience of the data.

Enhanced Enhanced Inter-Cell Interference

Coordination, called "FelCIC", is also an effective method to improve the cell throughput rate in heterogeneous networks (Hetnet). The base station will notify the user equipment of the CRS configuration of the interfering cell, including the physical cell identity, antenna port and CRS of the CRS. The configuration parameters of the unicast single overcast network ("MBSFN") are used by the user equipment to obtain the CRS information of the interfering cell by using the information. Interference Cancelling can be performed. For the "IC" receiver algorithm, the signal of the interfering cell at the CRS position is calculated and removed from the received signal to improve the demodulation performance of the UE. In the future wireless communication system, if the interfering cell uses the NCT carrier, and the user equipment has no way to know the time-frequency resource configuration information of the time-frequency tracking pilot on the NCT carrier used by the interfering cell, the time of the interfering cell cannot be Frequency tracking pilots use IC receiver algorithms for interference cancellation, affecting system performance and user experience. Summary of the invention

Embodiments of the present invention provide a method, a base station, and a user equipment for transmitting a reference signal, which enable a user equipment to correctly perform rate matching and/or interference cancellation in various systems employing an NCT carrier.

In a first aspect, an embodiment of the present invention provides a method for transmitting a reference signal, including: determining at least one resource configuration parameter of a user equipment UE, where the at least one resource configuration parameter includes a resource configuration of a time-frequency tracking reference signal a parameter, the time-frequency tracking reference signal is carried on a carrier of a new carrier type; and the at least one set of resource configuration parameters is sent to the UE.

With reference to the first aspect, in a first possible implementation, the resource configuration parameter of the time-frequency tracking reference signal includes at least one of the following parameters: a period of the time-frequency tracking reference signal, the time-frequency tracking reference signal a subframe offset value, a number of resource blocks RB occupied by the time-frequency tracking reference signal, a position of the RB occupied by the time-frequency tracking reference signal, and a number of resource units RE occupied by the time-frequency tracking reference signal in the RB And the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern of the RE occupied by the time-frequency tracking reference signal Quote.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation, the sequence initialization parameter of the time-frequency tracking reference signal is a UE-specific sequence initialization parameter.

In conjunction with the first aspect or in combination with the first or second possible implementation of the first aspect, in a third possible implementation, the at least one set of resource configuration parameters further includes a demodulation reference signal

Resource configuration parameters of the DMRS.

With reference to the third possible implementation manner of the foregoing aspect, in a fourth possible implementation, the resource configuration parameter of the DMRS includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, a parameter indicating a subframe offset value of the DMRS, a number of resource block RBs occupied by the DMRS, a location of an RB occupied by the DMRS, a number of resource units RE occupied by the DMRS in the RB, and a sequence initialization of the DMRS The parameter and the pattern index of the RE occupied by the DMRS.

In conjunction with the fourth possible implementation of the first aspect, in a fifth possible implementation, the sequence initialization parameter of the DMRS is a UE-specific sequence initialization parameter.

With reference to the first aspect or any one of the possible implementations of the first to fifth possible implementations of the first aspect, in a sixth possible implementation, the method further includes: sending, to the UE The first indication information is used to indicate that the UE performs rate matching by using the first resource configuration parameter in the at least one resource configuration parameter.

With reference to the first aspect or any one of the first to the sixth possible implementation manners of the first aspect, in a seventh possible implementation, the method further includes: sending, to the UE The second indication information is used to indicate that the UE directly performs time-frequency tracking using the currently received time-frequency tracking reference signal until the next time-frequency tracking reference signal is received.

In a second aspect, the embodiment of the present invention provides a method for transmitting a reference signal, including: receiving at least one set of resource configuration parameters sent by a base station, where the at least one set of resource configuration parameters includes resource configuration parameters of a time-frequency tracking reference signal And the time-frequency tracking reference signal is carried on the carrier of the new carrier type; and determining the resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters.

With reference to the second aspect, in a first possible implementation, the resource configuration parameter of the time-frequency tracking reference signal includes at least one of the following parameters: a period of the time-frequency tracking reference signal, the time-frequency tracking reference signal a subframe offset value, a number of resource blocks RB occupied by the time-frequency tracking reference signal, a position of the RB occupied by the time-frequency tracking reference signal, and the time-frequency tracking reference signal in the RB The number of occupied resource units RE, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation, the sequence initialization parameter of the time-frequency tracking reference signal is a user equipment UE-specific sequence initialization parameter.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation, the at least one set of resource configuration parameters further includes a resource configuration parameter of the demodulation reference signal DMRS .

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation, the resource configuration parameter of the DMRS includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, a parameter indicating a subframe offset value of the DMRS, a number of resource block RBs occupied by the DMRS, a location of an RB occupied by the DMRS, a number of resource units RE occupied by the DMRS in the RB, and an antenna port of the DMRS The number, the sequence initialization parameter of the DMRS, and the pattern index of the RE occupied by the DMRS.

In conjunction with the fourth possible implementation of the second aspect, in a fifth possible implementation, the sequence initialization parameter of the DMRS is a UE-specific sequence initialization parameter.

With reference to the second aspect or any one of the first to the fifth possible implementation manners of the second aspect, in a sixth possible implementation, the method further includes: receiving, sending, sending, by the base station The first indication information is used to indicate that the user equipment UE performs rate matching by using the first resource configuration parameter in the at least one resource configuration parameter; according to the first indication information and the at least one resource configuration parameter. , rate matching.

With reference to the second aspect or any one of the first to the sixth possible implementation manners of the second aspect, in a seventh possible implementation, the method further includes: receiving, sending, sending, by the base station Second indication information, the second indication information is used to indicate that the user equipment UE directly performs time-frequency tracking using the currently received time-frequency tracking reference signal until the next time-frequency tracking reference signal is received; according to the second Instructions, time-frequency tracking.

In a third aspect, an embodiment of the present invention provides a base station, including: a determining module, configured to determine at least one resource configuration parameter of a user equipment UE, where the at least one resource configuration parameter includes a resource configuration parameter of a time-frequency tracking reference signal The time-frequency tracking reference signal is carried on the carrier of the new carrier type, and the sending module is configured to send, to the UE, the at least one resource configuration determined by the determining module. Parameters.

With reference to the third aspect, in a first possible implementation manner, the resource configuration parameter of the time-frequency tracking reference signal determined by the determining module includes at least one of the following parameters: a period of the time-frequency tracking reference signal, at that time a subframe offset value of the frequency tracking reference signal, a number of resource blocks RB occupied by the time-frequency tracking reference signal, a position of the RB occupied by the time-frequency tracking reference signal, and a resource occupied by the time-frequency tracking reference signal in the RB The number of units RE, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

In conjunction with the first possible implementation of the third aspect, in a second possible implementation, the sequence initialization parameter of the time-frequency tracking reference signal determined by the determining module is a UE-specific sequence initialization parameter.

With reference to the third aspect or the first or second possible implementation manner of the third aspect, in a third possible implementation, the at least one set of resource configuration parameters determined by the determining module further includes a demodulation reference signal Resource configuration parameters of the DMRS.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the resource configuration parameter of the DMRS determined by the determining module includes at least one of the following parameters: a period for indicating the DMRS a parameter, a parameter for indicating a subframe offset value of the DMRS, a number of resource block RBs occupied by the DMRS, a location of an RB occupied by the DMRS, and a number of resource units RE occupied by the DMRS in the RB, The sequence initialization parameter of the DMRS and the pattern index of the RE occupied by the DMRS.

In conjunction with the fourth possible implementation of the third aspect, in a fifth possible implementation, the sequence initialization parameter of the DMRS determined by the determining module is a UE-specific sequence initialization parameter.

With reference to the third aspect or any one of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation, the sending module is further configured to use the UE Sending the first indication information, where the first indication information is used to indicate that the UE performs rate matching by using the first resource configuration parameter in the at least one set of resource configuration parameters.

With reference to the third aspect or any one of the first to the sixth possible implementation manners of the third aspect, in a seventh possible implementation, the sending module is further used to the UE Sending the second indication information, the second indication information is used to instruct the UE to perform time-frequency tracking using the currently received time-frequency tracking reference signal until the next time-frequency tracking reference signal is received. In a fourth aspect, an embodiment of the present invention provides a user equipment (UE), including: a receiving module, configured to receive at least one set of resource configuration parameters sent by a base station, where the at least one set of resource configuration parameters includes resource configuration of a time-frequency tracking reference signal a parameter, the time-frequency tracking reference signal is carried on a carrier of a new carrier type, and a determining module is configured to determine a resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters received by the receiving module.

With reference to the fourth aspect, in a first possible implementation manner, the resource configuration parameter of the time-frequency tracking reference signal received by the receiving module includes at least one of the following parameters: the time-frequency tracking reference signal period, the time a subframe offset value of the frequency tracking reference signal, a number of resource blocks RB occupied by the time-frequency tracking reference signal, a position of the RB occupied by the time-frequency tracking reference signal, and a resource occupied by the time-frequency tracking reference signal in the RB The number of units RE, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the sequence initialization parameter of the time-frequency tracking reference signal received by the receiving module is a sequence initialization parameter dedicated to the UE.

With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation, the at least one set of resource configuration parameters received by the receiving module further includes a demodulation reference signal Resource configuration parameters of the DMRS.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation, the resource configuration parameter of the DMRS received by the receiving module includes at least one of the following parameters: a period for indicating the DMRS a parameter, a parameter for indicating a subframe offset value of the DMRS, a number of resource block RBs occupied by the DMRS, a location of an RB occupied by the DMRS, and a number of resource units RE occupied by the DMRS in the RB, The number of antenna ports of the DMRS, the sequence initialization parameters of the DMRS, and the pattern index of the RE occupied by the DMRS.

With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the sequence initialization parameter of the DMRS received by the receiving module is a sequence initialization parameter specific to the UE.

With reference to the fourth aspect or any one of the first to fifth possible implementation manners of the fourth aspect, in a sixth possible implementation, the receiving module is further configured to receive the base station a first indication information, where the first indication information is used to indicate that the UE uses the first resource configuration parameter of the at least one resource configuration parameter for rate matching; the UE further includes: And a rate matching module, configured to perform rate matching according to the first indication information received by the receiving module and the at least one set of resource configuration parameters.

With reference to the fourth aspect or any one of the first to the sixth possible implementation manners of the fourth aspect, in a seventh possible implementation, the receiving module is further configured to receive the base station Sending the second indication information, the second indication information is used to indicate that the user equipment UE directly uses the currently received time-frequency tracking reference signal for time-frequency tracking until the next time-frequency tracking reference signal is received; The method includes: a time-frequency tracking module, configured to perform time-frequency tracking according to the second indication information received by the receiving module.

Based on the foregoing technical solution, the method, the base station, and the user equipment for transmitting the reference signal provided by the embodiment of the present invention notify the user equipment by using the resource configuration parameter of the time-frequency tracking reference signal carried on the NCT carrier, so that the user equipment can adopt Rate matching and/or interference cancellation are performed correctly in various systems of the NCT carrier, so that communication between the base station and the user equipment can be performed normally, and the user experience is improved. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention or the description of the prior art will be briefly described below. Obviously, the drawings described below are merely the present invention. Some of the embodiments can be obtained by those skilled in the art from the drawings without any creative work.

1 is a schematic flow chart of a method for transmitting a reference signal according to an embodiment of the present invention. 2 is another schematic flow diagram of a method for transmitting a reference signal in accordance with an embodiment of the present invention.

3 is still another schematic flow diagram of a method for transmitting a reference signal in accordance with an embodiment of the present invention.

4 is a schematic flow diagram of a method for transmitting a reference signal in accordance with another embodiment of the present invention.

FIG. 5 is another schematic flowchart of a method for transmitting a reference signal according to another embodiment of the present invention.

FIG. 6 is still another schematic flowchart of a method for transmitting a reference signal according to another embodiment of the present invention.

FIG. 7 is a schematic block diagram of a base station according to an embodiment of the present invention. FIG. 8 is a schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 9 is another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 10 is still another schematic block diagram of a user equipment according to an embodiment of the present invention.

11 is a schematic block diagram of a base station according to another embodiment of the present invention.

FIG. 12 is a schematic block diagram of a user equipment according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example, Global System of Mobile communication ("GSM") system, Code Division Multiple Access (Code Division Multiple Access) Called "CDMA") system, Wideband Code Division Multiple Access ("WCDMA") system, General Packet Radio Service ("General Packet Radio Service"), Long Term Evolution ( Long Term Evolution, called "LTE" system, LTE frequency division duplex (Frequency Division Duplex) system, LTE time division duplex (Time Division Duplex, "TDD"), general purpose The mobile communication system (Universal Mobile Telecommunication System, called "UMTS"), the Worldwide Interoperability for Microwave Access ("Wireless") communication system. It should also be understood that the embodiments of the present invention can be applied to various multi-point cooperation technologies, such as: Dynamic Point Selection, Joint Transmission, Cooperative Scheduling, and Combined Beamforming. Cooperative Beamforming and the like.

It should also be understood that in the embodiment of the present invention, a user equipment (User Equipment, referred to as "UE") may be referred to as a terminal (Terminal), a mobile station (Mobile Station, referred to as "MS"), a mobile terminal ( Mobile Terminal), etc., the user equipment can communicate with one or more core networks via a Radio Access Network ("RAN"), for example, the user equipment can be a mobile phone (or "cellular""Telephone", a computer with a mobile terminal, etc., for example, the user device can also be portable, pocket-sized, handheld, computer-built or in-vehicle mobile Devices that exchange voice and/or data with a wireless access network.

It should also be understood that, in the embodiment of the present invention, the base station may be a base station (Base Transceiver Station, called "BTS") in GSM or CDMA, or a base station (NodeB) in WCDMA, or may be in LTE. The evolved base station (evolved Node B, referred to as "eNB" or "e-NodeB") is not limited in the present invention.

The technical solution of the embodiment of the present invention can be applied to various systems using carriers of a new carrier type NCT, where the NCT carrier does not carry CRS, and the NCT carrier can be configured as standalone and non-independent carriers, if configured For a non-independent carrier, the NCT carrier may not have a part of the control channel in the normal carrier, such as a Physical Downlink Channel (referred to as a "PDCCH").

1 shows a schematic flow chart of a method 100 for transmitting a reference signal, which may be performed by a serving base station in at least one serving base station of a user equipment UE, for ease of description, in accordance with an embodiment of the present invention. The executor of the method 100 is referred to as a first serving base station. As shown in FIG. 1, the method 100 includes:

S110: Determine at least one resource configuration parameter of the user equipment UE, where the at least one resource configuration parameter includes a resource configuration parameter of a time-frequency tracking reference signal, where the time-frequency tracking reference signal is carried on a carrier of a new carrier type;

S120. Send the at least one set of resource configuration parameters to the UE.

Therefore, the method for transmitting a reference signal in the embodiment of the present invention notifies the user equipment of the resource configuration parameter of the time-frequency tracking reference signal carried on the NCT carrier, so that the user equipment can be correctly in various systems adopting the NCT carrier. Rate matching and/or interference cancellation are performed to enable normal communication between the base station and the user equipment, thereby improving the user experience.

In S110, the first serving base station configures at least one set of resource configuration parameters for the UE, where the set of the at least one set of resource configuration parameters may be equal to the number of at least one serving base station of the UE, and correspondingly, each of the user equipments The serving base station may correspond to a set of resource configuration parameters. Optionally, the set of at least one set of resource configuration parameters may also be smaller than the number of at least one serving base station of the UE, and correspondingly, two or more of the at least one serving base station. The serving base station can share a set of resource configuration parameters, but the embodiment of the present invention is not limited thereto.

The at least one set of resource configuration parameters may include resource configuration parameters when the at least one serving base station of the UE sends the time-frequency tracking reference signal, where the time-frequency tracking reference signal is a reference for time-frequency tracking carried on the NCT carrier. Signal, the time-frequency tracking reference signal is different from the old protocol The CRS, DMRS, and CSI-RS carried on the normal carrier in the version (version 8 to version 11), the time-frequency tracking reference signal cannot be demodulated, and the time-frequency resource occupied by the time-frequency tracking reference signal is lower than The time-frequency resource occupied by the CRS carried on the normal carrier in the old protocol version. It should be understood that, in the embodiment of the present invention, the reference signal for time-frequency tracking carried on the NCT carrier is referred to as a time-frequency tracking reference signal, and the time-frequency tracking reference signal may have other names, and the time-frequency tracking reference signal should be It is determined by its intrinsic logic function that its name cannot be construed as limiting the embodiments of the present invention.

Optionally, each set of resource configuration parameters of the at least one set of resource configuration parameters may include a resource configuration parameter of a time-frequency tracking reference signal, or one or more sets of resource configuration parameters of the at least one set of resource configuration parameters may include The time-frequency tracking resource configuration parameters of the reference signal, but the embodiment of the present invention is not limited thereto.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal may include at least one of the following parameters: a period of the time-frequency tracking reference signal, a subframe offset value of the time-frequency tracking reference signal, and the time-frequency tracking The number of resource blocks RB occupied by the reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of resource units RE occupied by the time-frequency tracking reference signal in the RB, and the antenna port of the time-frequency tracking reference signal The number, the sequence initialization parameter of the time-frequency tracking reference signal, the pattern index of the RE occupied by the time-frequency tracking reference signal, and the type of carrier carrying the time-frequency tracking reference signal.

The period of the time-frequency tracking reference signal and the subframe offset value may represent the subframe information occupied by the time-frequency tracking reference signal. Optionally, the subframe information occupied by the time-frequency tracking reference signal may also be used in other manners. For example, the subframe information occupied by the time-frequency tracking reference signal may be represented by a bitmap, for example, 1 and 0 respectively represent a time-frequency tracking reference signal and a subframe on a subframe. There is no time-frequency tracking reference signal. Alternatively, the number of bits may be 5, 10, 20 or 40, etc., but embodiments of the invention are not limited thereto.

Optionally, the one or more serving base station side and the UE side of the at least one serving base station of the UE may preset a partial resource configuration parameter of the time-frequency tracking reference signal, for example, the time-frequency tracking reference signal may be preset. a plurality of RBs in the middle of the system bandwidth, or a preset period of the time-frequency tracking reference signal or a number of occupied RBs, etc., correspondingly, the resource configuration parameter of the time-frequency tracking reference signal may not include the foregoing preset resources. Configuration parameters. Optionally, one or more serving base stations and the UE side of the at least one serving base station of the UE may further preset at least one pattern of REs occupied by the time-frequency tracking reference signal in one RB, and the time-frequency tracking reference The resource resource configuration parameter of the signal may include a pattern index, so that the UE may according to the pattern The index and the preset pattern determine the RE occupied by the time-frequency tracking reference signal in one RB. Optionally, when one or more serving base stations of the at least one serving base station of the UE have multiple antenna ports, the resource configuration parameter of the time-frequency tracking reference signal may also include only one bandwidth configuration parameter, to default to the multiple All ports in the antenna port use the same configuration parameters. Specifically, the bandwidth configuration may implicitly indicate several typical values, such as 3, 6, 10, 15, 25, 50, or 100, etc. through several bits, but the embodiment of the present invention is not limited thereto.

Optionally, the sequence initialization parameter of the time-frequency tracking reference signal may be a cell physical identifier. Optionally, in order to adapt to the future Hetnet architecture, the macro base station and the multiple micro base stations of the UE can dynamically and flexibly according to actual conditions. The channel state is that the UE transmits the time-frequency tracking reference signal, and enables the UE to flexibly synchronize with each base station according to the actual situation. The sequence initialization parameter of the time-frequency tracking reference signal may not be a cell-level parameter, but a user. Device-specific values, that is, each UE can correspond to different sequence initialization parameters. Correspondingly, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal is a UE-specific sequence initialization parameter. That is, the sequence initialization parameter of the time-frequency tracking reference signal sent by the base station to the UE is the sequence initialization parameter dedicated to the UE.

Optionally, when one or more of the at least one serving base station of the UE uses the NCT carrier, and the other serving base station uses the normal carrier, one or more sets of resource configuration parameters of the at least one resource configuration parameter are further The resource configuration parameters of the CRS may be included. Specifically, the resource configuration parameter of the CRS may include a physical cell identifier and a port number of the CRS. Optionally, the resource configuration parameter of the CRS may further include configuration information of the MBSFN and a zero power channel state information reference signal (Zero Power Channel State). Configuration Information Signal, the configuration information of the tube called "ZP CSI-RS", configuration information of the non-zero power channel state information reference signal (Non-Zero Power Channel State Information Reference Signal, called "NZP CSI-RS") And the start symbol of the physical downlink shared channel (the physical downlink shared channel, referred to as "PDSCH"), but the embodiment of the present invention is not limited thereto.

Optionally, as another embodiment, if one or more of the at least one serving base station of the user equipment uses a pilot overhead reduction scheme, that is, the time-frequency resource occupied by the DMRS is reduced, the at least one resource is used. The configuration parameter may further include a resource configuration parameter of the DMRS; correspondingly, the at least one resource configuration parameter further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, the resource configuration parameter of the DMRS may include at least one of the following parameters: a period of the DMRS, a subframe offset value of the DMRS, and a resource block RB occupied by the DMRS. The number, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the sequence initialization parameter of the DMRS, the pattern index of the RE occupied by the DMRS, and the type of the carrier carrying the DMRS.

The period of the DMRS and the subframe offset value may represent the subframe information occupied by the DMRS. Optionally, the subframe information occupied by the DMRS may also be represented by other methods, for example, by using a bitmap. The mode indicates the subframe information occupied by the DMRS. For example, 1 and 0 respectively indicate that there is a DMRS in one subframe and no DMRS in one subframe, but the embodiment of the present invention is not limited thereto.

Optionally, one or more serving base station sides and a UE side of the at least one serving base station of the UE may preset a partial resource configuration parameter of the DMRS. For example, the DMRS may be preset to occupy a few RBs in the middle of the system bandwidth. Or, the period of the DMRS or the number of occupied RBs is set in advance, and so on, correspondingly, the resource configuration parameter of the DMRS may not include the foregoing preset resource configuration parameter. Optionally, the one or more serving base stations and the UE side of the at least one serving base station of the UE may further preset at least one pattern of the REs occupied by the DMRS in one RB, and the resource resource configuration parameters of the DMRS may include The pattern index is such that the UE can determine the RE occupied by the DMRS in one RB according to the pattern index and the preset pattern, but the embodiment of the present invention is not limited thereto.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS is a UE-specific sequence initialization parameter.

The UE-specific sequence initialization identifier may not be a cell physical identifier, and different UEs generally correspond to different sequence initialization identifiers. Optionally, the sequence initialization parameter of the time-frequency tracking reference signal may also be a cell physical identifier, but the present invention The embodiment is not limited to this.

Optionally, as another embodiment, when the UE supports device-to-device (Device to Device, referred to as "D2D") communication, the at least one resource configuration parameter may further include a resource configuration parameter of the device discovery signal. The resource configuration parameter of the device discovery signal may include a subframe and/or a frequency band parameter occupied by the device discovery signal, but the embodiment of the present invention is not limited thereto.

Optionally, when the first serving base station needs to perform actual scheduling on the UE,

The UE uses the set of resource configuration parameters of the at least one set of resource configuration parameters to perform rate matching. Optionally, as another embodiment, as shown in FIG. 2, the method 100 further includes:

S130. The first indication information is sent to the UE, where the first indication information is used to indicate that the UE performs rate matching by using the first resource configuration parameter in the at least one resource configuration parameter. The first serving base station may be scrambled by a DCI, a Radio Network Temporary Identifier ("Radio Network Temporary Identifier"), and a Master Information Block ("MIB"). Scrambling on the CP or pre-defining a dedicated cyclic prefix (Cyclic Prefix, called "CP") on the CP or sending the first to the UE by means of a system information block ("SIB") An indication information, the embodiment of the present invention is not limited thereto.

Optionally, the first serving base station may further indicate, in the subframe where the UE does not have the time-frequency tracking reference signal, how to estimate the time-frequency offset and correct the data offset of the current subframe, optionally, as another embodiment. As shown in FIG. 3, the method 100 further includes:

S140. The second indication information is sent to the UE, where the second indication information is used to indicate that the UE uses the currently received time-frequency tracking reference signal for time-frequency tracking until the next time-frequency tracking reference signal is received.

The UE may use the latest received time-frequency tracking reference signal for rate matching on the subframe without the time-frequency tracking reference signal according to the second indication information, to correct the data offset of the current subframe until the next one is received. The time-frequency tracking of the reference signal; optionally, the second indication information may further indicate that the UE directly uses the currently received DMRS until the DMRS is received again, and accordingly, the UE may be in a subframe without the DMRS. And using the latest received DMRS for rate matching, and acquiring a demodulation channel to improve data demodulation performance; optionally, the second indication information may also indicate that the user equipment tracks the reference signal and/or the DMRS without time-frequency. On the subframe, the reference frequency and/or the DMRS are tracked using the time-frequency on the subframe closest to the subframe, but the embodiment of the present invention is not limited thereto.

The method for transmitting a reference signal according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 3, which will be described in detail from the perspective of the user equipment UE in conjunction with FIG. 4 to FIG. A method for transmitting a reference signal of an embodiment of the invention.

FIG. 4 shows a schematic flowchart of a method 200 for transmitting a reference signal according to another embodiment of the present invention. The method 200 may be performed by a user equipment UE. As shown in FIG. 4, the method 200 includes: S210, receiving, by the base station, at least one set of resource configuration parameters, where the at least one set of resource configuration parameters includes a resource configuration parameter of a time-frequency tracking reference signal, where the time-frequency tracking reference signal is carried on a carrier of a new carrier type;

S220. Determine, according to the at least one set of resource configuration parameters, a resource configuration of the time-frequency tracking reference signal.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal includes at least one of the following parameters: a period of the time-frequency tracking reference signal, a subframe offset value of the time-frequency tracking reference signal, and the time-frequency tracking reference. The number of resource blocks RB occupied by the signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of resource units RE occupied by the time-frequency tracking reference signal in the RB, and the number of antenna ports of the time-frequency tracking reference signal And the time-frequency tracking reference signal sequence initialization parameter and the pattern index of the RE occupied by the time-frequency tracking reference signal.

Optionally, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal is a UE-specific sequence initialization parameter. That is to say, the sequence initialization parameter of the time-frequency tracking reference signal received by the UE is the sequence initialization parameter dedicated to the UE.

Optionally, as another embodiment, the at least one set of resource configuration parameters further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, as another embodiment, the resource configuration parameter of the DMRS includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, a parameter used to indicate a subframe offset value of the DMRS, The number of resource block RBs occupied by the DMRS, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the number of antenna ports of the DMRS, the sequence initialization parameters of the DMRS, and the DMRS occupied by the DMRS The index of the pattern of the RE.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS is a UE-specific sequence initialization parameter. That is to say, the sequence initialization parameter of the DMRS received by the UE is a sequence initialization parameter dedicated to the UE.

Optionally, as another embodiment, as shown in FIG. 5, the method 200 further includes:

S230: Receive first indication information that is sent by the base station, where the first indication information is used to indicate that the user equipment UE uses the first resource configuration parameter in the at least one resource configuration parameter to perform rate measurement. Match

S240. Perform rate matching according to the first indication information and the at least one set of resource configuration parameters. Optionally, as another embodiment, as shown in FIG. 6, the method 200 further includes:

S250. Receive second indication information that is sent by the base station, where the second indication information is used to indicate that the user equipment UE uses the currently received time-frequency tracking reference signal to perform time-frequency tracking until the next time-frequency tracking reference signal is received. ;

S260. Perform time-frequency tracking according to the second indication information.

It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation process of the embodiments of the present invention.

The method for transmitting a reference signal according to an embodiment of the present invention is described in detail above with reference to Figs. 1 through 6, and a base station and a user equipment according to an embodiment of the present invention will be described below with reference to Figs.

FIG. 7 shows a schematic block diagram of a base station 300 according to an embodiment of the present invention, the base station 300 including:

The determining module 310 is configured to determine at least one resource configuration parameter of the user equipment UE, where the at least one resource configuration parameter includes a resource configuration parameter of a time-frequency tracking reference signal, where the time-frequency tracking reference signal is carried on a carrier of a new carrier type ;

The sending module 320 is configured to send, to the UE, the at least one set of resource configuration parameters determined by the determining module 310.

Therefore, the base station of the embodiment of the present invention notifies the user equipment of the resource configuration parameters of the time-frequency tracking reference signal carried on the NCT carrier, so that the user equipment can correctly perform rate matching and/or in various systems adopting the NCT carrier. Interference cancellation is performed to enable normal communication between the base station and the user equipment, thereby improving the user experience.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal determined by the determining module 310 includes at least one of the following parameters: a period of the time-frequency tracking reference signal, and a subframe offset value of the time-frequency tracking reference signal. The time-frequency tracking reference signal occupies the number of resource blocks RB, the time-frequency followed The location of the RB occupied by the reference signal, the number of resource units RE occupied by the time-frequency tracking reference signal in the RB, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the The time-frequency tracking pattern index of the RE occupied by the reference signal.

Optionally, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal determined by the determining module 310 is a UE-specific sequence initialization parameter.

Optionally, as another embodiment, the at least one set of resource configuration parameters determined by the determining module 310 further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, as another embodiment, the resource configuration parameter of the DMRS determined by the determining module 310 includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, and a subframe offset used to indicate the DMRS. The parameter of the value, the number of resource block RBs occupied by the DMRS, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the sequence initialization parameter of the DMRS, and the RE occupied by the DMRS The pattern index.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS determined by the determining module 310 is a UE-specific sequence initialization parameter.

Optionally, in another embodiment, the sending module 320 is further configured to send the first indication information to the UE, where the first indication information is used to indicate that the UE uses the first resource configuration in the at least one set of resource configuration parameters. The parameters are rate matched.

Optionally, in another embodiment, the sending module 320 is further configured to send the second indication information to the UE, where the second indication information is used to indicate that the UE directly uses the currently received time-frequency tracking reference signal. Frequency tracking until the next time-frequency tracking reference signal is received.

The base station 300 according to an embodiment of the present invention may correspond to a base station in a method for transmitting a reference signal according to an embodiment of the present invention, and the above and other operations and/or functions of respective modules in the base station 300 are respectively implemented in order to implement FIG. The corresponding processes of the respective methods in FIG. 3 are not described here.

FIG. 8 shows a schematic block diagram of a user equipment 400 according to an embodiment of the present invention. As shown in FIG. 8, the user equipment UE 400 includes:

The receiving module 410 is configured to receive at least one set of resource configuration parameters sent by the base station, where the at least one The set of resource configuration parameters includes a resource configuration parameter of the time-frequency tracking reference signal, and the time-frequency tracking reference signal is carried on a carrier of a new carrier type;

The determining module 420 is configured to determine a resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters received by the receiving module 410.

Therefore, the user equipment of the embodiment of the present invention notifies the user equipment of the resource configuration parameters of the time-frequency tracking reference signal carried on the NCT carrier, so that the user equipment can correctly perform rate matching in various systems adopting the NCT carrier and/or Or interference cancellation is performed to enable normal communication between the base station and the user equipment, thereby improving the user experience.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal received by the receiving module 410 includes at least one of the following parameters: a period of the time-frequency tracking reference signal, and a subframe offset value of the time-frequency tracking reference signal. And the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of resource units RE occupied by the time-frequency tracking reference signal in the RB, and the time-frequency tracking The number of antenna ports of the reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

Optionally, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal received by the receiving module 410 is a sequence initialization parameter specific to the UE.

Optionally, as another embodiment, the at least one set of resource configuration parameters received by the receiving module 410 further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, as another embodiment, the resource configuration parameter of the DMRS received by the receiving module 410 includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, and a subframe offset used to indicate the DMRS. The parameter of the value, the number of resource blocks RB occupied by the DMRS, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the number of antenna ports of the DMRS, and the sequence initialization of the DMRS The parameter and the pattern index of the RE occupied by the DMRS.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS received by the receiving module 410 is a sequence initialization parameter specific to the UE.

Optionally, in another embodiment, the receiving module 410 is further configured to receive the first indication information sent by the base station, where the first indication information is used to indicate that the UE uses the first resource in the at least one resource configuration parameter. Configure parameters for rate matching;

Correspondingly, as shown in FIG. 9, the UE 400 further includes:

The rate matching module 430 is configured to receive, according to the first indication information received by the receiving module 410, The at least one set of resource configuration parameters is rate matched.

Optionally, in another embodiment, the receiving module 410 is further configured to receive second indication information that is sent by the base station, where the second indication information is used to indicate that the user equipment UE directly uses the currently received time-frequency tracking reference signal. Perform time-frequency tracking until the next time-frequency tracking reference signal is received;

Correspondingly, as shown in FIG. 10, the UE 400 further includes:

The time-frequency tracking module 440 is configured to perform time-frequency tracking according to the second indication information received by the receiving module 410.

The user equipment 400 according to an embodiment of the present invention may correspond to a user equipment in a method for transmitting a reference signal according to an embodiment of the present invention, and the above-described and other operations and/or functions of respective modules in the user equipment 400 are respectively implemented The corresponding processes of the respective methods in FIG. 4 to FIG. 6 are not described here.

Therefore, the user equipment of the embodiment of the present invention notifies the user equipment of the resource configuration parameters of the time-frequency tracking reference signal carried on the NCT carrier, so that the user equipment can correctly perform rate matching in various systems adopting the NCT carrier and/or Or interference cancellation is performed, so that the communication between the station and the user equipment can be normally performed, and the user experience is improved.

Figure 11 shows a schematic block diagram of a base station 500 including:

The processor 510 is configured to determine at least one resource configuration parameter of the user equipment UE, where the at least one resource configuration parameter includes a resource configuration parameter of a time-frequency tracking reference signal, where the time-frequency tracking reference signal is carried on a carrier of a new carrier type ;

The transmitter 520 is configured to send, to the UE, the at least one set of resource configuration parameters determined by the processor 510.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal determined by the processor 510 includes at least one of the following parameters: a period of the time-frequency tracking reference signal, and a subframe offset value of the time-frequency tracking reference signal. And the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, and the resource unit occupied by the time-frequency tracking reference signal in the RB The number of REs, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameters of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

Optionally, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal determined by the processor 510 is a UE-specific sequence initialization parameter.

Optionally, as another embodiment, the at least one set of resource configuration parameters determined by the processor 510 further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, as another embodiment, the resource configuration parameter of the DMRS determined by the processor 510 includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, and a subframe offset used to indicate the DMRS. The parameter of the value, the number of resource block RBs occupied by the DMRS, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the sequence initialization parameter of the DMRS, and the RE occupied by the DMRS The pattern index.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS determined by the processor 510 is a UE-specific sequence initialization parameter.

Optionally, in another embodiment, the transmitter 520 is further configured to send the first indication information to the UE, where the first indication information is used to indicate that the UE uses the first resource configuration in the at least one set of resource configuration parameters. The parameters are rate matched.

Optionally, in another embodiment, the transmitter 520 is further configured to send, to the UE, second indication information, where the second indication information is used to indicate that the UE directly uses the currently received time-frequency tracking reference signal. Frequency tracking until the next time-frequency tracking reference signal is received.

The base station 500 according to an embodiment of the present invention may correspond to a base station in a method for transmitting a reference signal according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the base station 500 are respectively implemented in order to implement FIG. The corresponding processes of the respective methods in FIG. 3 are not described here.

FIG. 12 is a schematic block diagram of a user equipment 600 according to an embodiment of the present invention. As shown in FIG. 12, the user equipment UE 600 includes:

The receiver 610 is configured to receive at least one resource configuration parameter sent by the base station, where the at least one resource configuration parameter includes a resource configuration parameter of the time-frequency tracking reference signal, and the time-frequency tracking reference signal Beared on the carrier of the new carrier type;

The processor 620 is configured to determine a resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters received by the receiver 610.

Optionally, the resource configuration parameter of the time-frequency tracking reference signal received by the receiver 610 includes at least one of the following parameters: a period of the time-frequency tracking reference signal, and a subframe offset value of the time-frequency tracking reference signal. And the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of resource units RE occupied by the time-frequency tracking reference signal in the RB, and the time-frequency tracking The number of antenna ports of the reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

Optionally, as another embodiment, the sequence initialization parameter of the time-frequency tracking reference signal received by the receiver 610 is a sequence initialization parameter dedicated to the UE.

Optionally, as another embodiment, the at least one set of resource configuration parameters received by the receiver 610 further includes a resource configuration parameter of the demodulation reference signal DMRS.

Optionally, as another embodiment, the resource configuration parameter of the DMRS received by the receiver 610 includes at least one of the following parameters: a parameter used to indicate a period of the DMRS, and a subframe offset used to indicate the DMRS. The parameter of the value, the number of resource blocks RB occupied by the DMRS, the location of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the number of antenna ports of the DMRS, and the sequence initialization of the DMRS The parameter and the pattern index of the RE occupied by the DMRS.

Optionally, as another embodiment, the sequence initialization parameter of the DMRS received by the receiver 610 is a sequence initialization parameter specific to the UE.

Optionally, in another embodiment, the receiver 610 is further configured to receive first indication information that is sent by the base station, where the first indication information is used to indicate that the UE uses the first resource in the at least one resource configuration parameter. Configure parameters for rate matching;

The processor 620 is further configured to perform rate matching according to the first indication information received by the receiver 610 and the at least one set of resource configuration parameters.

Optionally, in another embodiment, the receiver 610 is further configured to receive the second sent by the base station. Instructing information, the second indication information is used to indicate that the user equipment UE performs time-frequency tracking using the currently received time-frequency tracking reference signal until the next time-frequency tracking reference signal is received; accordingly, the processor 620 The method is further configured to perform time-frequency tracking according to the second indication information received by the receiver 610.

User equipment 600 according to an embodiment of the present invention may correspond to a user equipment in a method for transmitting a reference signal according to an embodiment of the present invention, and the above and other operations and/or functions of respective modules in user equipment 600 are respectively implemented The corresponding processes of the respective methods in FIG. 4 to FIG. 6 are not described here.

It should be understood that in the embodiments of the present invention, the term "and/or" is merely an association relationship describing an associated object, indicating that there may be three relationships. For example, A and / or B, can mean: A exists separately, there are A and B, and there are three cases of B alone. In addition, the character " /" in this article generally indicates that the contextual object is an "or" relationship.

Those skilled in the art will appreciate that the various method steps and elements described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the steps and composition of the various embodiments have been generally described in terms of function in the foregoing description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Different methods may be used to implement the described functionality for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, what is shown or discussed between each other The coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (called "ROM"), a random access memory ("RAM" called "RAM"), a disk or A variety of media such as optical discs that can store program code.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method for transmitting reference signals, characterized by including:

Determine at least one set of resource configuration parameters of the user equipment UE, where the at least one set of resource configuration parameters includes resource configuration parameters of a time-frequency tracking reference signal, and the time-frequency tracking reference signal is carried on a carrier of a new carrier type;

Send the at least one set of resource configuration parameters to the UE.

2. The method according to claim 1, characterized in that, the resource configuration parameters of the time-frequency tracking reference signal include at least one of the following parameters: the period of the time-frequency tracking reference signal, the time-frequency tracking The subframe offset value of the reference signal, the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of RBs occupied by the time-frequency tracking reference signal The number of resource units RE, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameters of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

3. The method according to claim 2, characterized in that the sequence initialization parameters of the time-frequency tracking reference signal are UE-specific sequence initialization parameters.

4. The method according to any one of claims 1 to 3, characterized in that the at least one set of resource configuration parameters further includes resource configuration parameters of the demodulation reference signal DMRS.

5. The method according to claim 4, characterized in that the resource configuration parameters of the DMRS include at least one of the following parameters: a parameter used to indicate the period of the DMRS, a parameter used to indicate the sub-parameter of the DMRS Parameters of the frame offset value, the number of resource blocks RB occupied by the DMRS, the position of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, and the sequence initialization parameters of the DMRS and the pattern index of the RE occupied by the DMRS.

6. The method according to claim 5, characterized in that the sequence initialization parameters of the DMRS are UE-specific sequence initialization parameters.

7. The method according to any one of claims 1 to 6, characterized in that, the method further includes:

Send first indication information to the UE, where the first indication information is used to instruct the UE to use a first resource configuration parameter in the at least one set of resource configuration parameters to perform rate matching.

8. The method according to any one of claims 1 to 7, characterized in that, the method further includes: Send second indication information to the UE, the second indication information is used to instruct the UE to continue to use the currently received time-frequency tracking reference signal to perform time-frequency tracking until the next time-frequency tracking reference signal is received. .

9. A method for transmitting reference signals, characterized by including:

Receive at least one set of resource configuration parameters sent by the base station, the at least one set of resource configuration parameters including resource configuration parameters of a time-frequency tracking reference signal, and the time-frequency tracking reference signal is carried on a carrier of a new carrier type;

Determine the resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters.

10. The method according to claim 9, characterized in that, the resource configuration parameters of the time-frequency tracking reference signal include at least one of the following parameters: the period of the time-frequency tracking reference signal, the time-frequency tracking The subframe offset value of the reference signal, the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the number of RBs occupied by the time-frequency tracking reference signal The number of resource units RE, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal.

11. The method according to claim 10, characterized in that the sequence initialization parameters of the time-frequency tracking reference signal are user equipment UE-specific sequence initialization parameters.

12. The method according to any one of claims 9 to 11, characterized in that the at least one set of resource configuration parameters further includes resource configuration parameters of the demodulation reference signal DMRS.

13. The method according to claim 12, characterized in that the resource configuration parameters of the DMRS include at least one of the following parameters: a parameter used to indicate the period of the DMRS, a parameter used to indicate the sub-parameter of the DMRS Parameters of the frame offset value, the number of resource blocks RB occupied by the DMRS, the position of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the number of antenna ports of the DMRS , the sequence initialization parameter of the DMRS and the pattern index of the RE occupied by the DMRS.

14. The method according to claim 13, characterized in that the sequence initialization parameters of the DMRS are UE-specific sequence initialization parameters.

15. The method according to any one of claims 9 to 14, characterized in that the method further includes:

Receive the first indication information sent by the base station, the first indication information is used to instruct the user equipment The prepared UE uses the first resource configuration parameter in the at least one set of resource configuration parameters to perform rate matching;

Rate matching is performed according to the first indication information and the at least one set of resource configuration parameters.

16. The method according to any one of claims 9 to 15, characterized in that the method further includes:

Receive the second instruction information sent by the base station, the second instruction information is used to instruct the user equipment UE to continue to use the currently received time-frequency tracking reference signal to perform time-frequency tracking until the next time-frequency tracking reference signal is received. so far;

Time-frequency tracking is performed according to the second indication information.

17. A base station, characterized in that it includes:

Determining module, configured to determine at least one set of resource configuration parameters of the user equipment UE. The at least one set of resource configuration parameters includes resource configuration parameters of a time-frequency tracking reference signal. The time-frequency tracking reference signal is carried on a carrier of a new carrier type. superior;

A sending module, configured to send the at least one set of resource configuration parameters determined by the determining module to the UE.

18. The base station according to claim 17, characterized in that, the resource configuration parameters of the time-frequency tracking reference signal determined by the determining module include at least one of the following parameters: Period of the time-frequency tracking reference signal , the subframe offset value of the time-frequency tracking reference signal, the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the time-frequency tracking reference The number of resource units RE occupied by the signal in the RB, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal .

19. The base station according to claim 18, wherein the sequence initialization parameter of the time-frequency tracking reference signal determined by the determination module is a UE-specific sequence initialization parameter.

20. The base station according to any one of claims 17 to 19, characterized in that the at least one set of resource configuration parameters determined by the determination module further includes resource configuration parameters of the demodulation reference signal DMRS.

21. The base station according to claim 20, characterized in that, the resource configuration parameters of the DMRS determined by the determination module include at least one of the following parameters: a parameter used to indicate the period of the DMRS, Parameters indicating the subframe offset value of the DMRS, the number of resource block RBs occupied by the DMRS, the position of the RBs occupied by the DMRS, the DMRS The number of resource unit REs occupied in the RB, the sequence initialization parameter of the DMRS and the pattern index of the RE occupied by the DMRS.

22. The base station according to claim 21, wherein the sequence initialization parameter of the DMRS determined by the determination module is a UE-specific sequence initialization parameter.

23. The base station according to any one of claims 17 to 22, characterized in that the sending module is further configured to send first indication information to the UE, and the first indication information is used to instruct the UE Rate matching is performed using a first resource configuration parameter in the at least one set of resource configuration parameters.

24. The method according to any one of claims 17 to 23, characterized in that the sending module is further configured to send second indication information to the UE, and the second indication information is used to instruct the UE The currently received time-frequency tracking reference signal is used for time-frequency tracking until the next time-frequency tracking reference signal is received.

25. A user equipment UE, characterized by: including:

A receiving module configured to receive at least one set of resource configuration parameters sent by the base station. The at least one set of resource configuration parameters includes resource configuration parameters of a time-frequency tracking reference signal. The time-frequency tracking reference signal is carried on a carrier of a new carrier type. ;

A determining module, configured to determine the resource configuration of the time-frequency tracking reference signal according to the at least one set of resource configuration parameters received by the receiving module.

26. The UE according to claim 25, wherein the resource configuration parameters of the time-frequency tracking reference signal received by the receiving module include at least one of the following parameters: Period of the time-frequency tracking reference signal , the subframe offset value of the time-frequency tracking reference signal, the number of resource blocks RB occupied by the time-frequency tracking reference signal, the position of the RB occupied by the time-frequency tracking reference signal, the time-frequency tracking reference The number of resource units RE occupied by the signal in the RB, the number of antenna ports of the time-frequency tracking reference signal, the sequence initialization parameter of the time-frequency tracking reference signal, and the pattern index of the RE occupied by the time-frequency tracking reference signal .

27. The UE according to claim 26, wherein the sequence initialization parameters of the time-frequency tracking reference signal received by the receiving module are sequence initialization parameters specific to the UE.

28. The UE according to any one of claims 25 to 27, wherein the at least one set of resource configuration parameters received by the receiving module also includes resource configuration parameters of the demodulation reference signal DMRS.

29. The UE according to claim 28, characterized in that: all the data received by the receiving module The resource configuration parameters of the DMRS include at least one of the following parameters: a parameter used to indicate a period of the DMRS, a parameter used to indicate a subframe offset value of the DMRS, and a resource block RB occupied by the DMRS. number, the position of the RB occupied by the DMRS, the number of resource units RE occupied by the DMRS in the RB, the number of antenna ports of the DMRS, the sequence initialization parameters of the DMRS and the number of REs occupied by the DMRS. Pattern index.

30. The UE according to claim 29, wherein the sequence initialization parameter of the DMRS received by the receiving module is a sequence initialization parameter specific to the UE.

31. The UE according to any one of claims 25 to 30, wherein the receiving module is further configured to receive first indication information sent by the base station, and the first indication information is used to indicate the The UE uses the first resource configuration parameter in the at least one set of resource configuration parameters to perform rate matching;

The UE also includes:

A rate matching module, configured to perform rate matching based on the first indication information received by the receiving module and the at least one set of resource configuration parameters.

32. The UE according to any one of claims 25 to 31, characterized in that, the receiving module is further configured to receive second indication information sent by the base station, and the second indication information is used to instruct the user equipment The UE always uses the currently received time-frequency tracking reference signal for time-frequency tracking until it receives the next time-frequency tracking reference signal;

The UE also includes:

A time-frequency tracking module, configured to perform time-frequency tracking according to the second indication information received by the receiving module.