WO2018028368A1

WO2018028368A1 - Method and device for processing quasi-colocation information

Info

Publication number: WO2018028368A1
Application number: PCT/CN2017/092278
Authority: WO
Inventors: 肖华华; 李儒岳; 张楠; 贺海港
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-08-12
Filing date: 2017-07-07
Publication date: 2018-02-15
Also published as: CN107733611B9; CN107733611B; CN107733611A

Abstract

Provided in the present invention are a method and device for processing quasi-colocation information. The method comprises: a base station divides M demodulation pilot ports into N demodulation pilot port groups G₁, …, and G_N, where N₁ demodulation port groups are signal demodulation port groups, N₂ demodulation port groups are scrambling demodulation port groups, M, N₁, and N₂ are positive integers, and 1 < N ≤ M; and the base station transmits quasi-colocation information of the N demodulation pilot port groups to a terminal. The described technical solution solves the problem in the prior art in which the terminal cannot acquire quasi-colocation parameter information of an interfering DMRS and, as a result, cannot acquire the time offset and frequency offset of an interfering channel and correct the time offset and frequency offset of the frequency interfering with DMRS estimation, thus allowing the terminal to accurately acquire the quasi-colocation information of an interference and to accurately eliminate the impact of the interference, and increasing the performance of a radio communication system.

Description

Method and device for processing quasi-common position information

Technical field

The present invention relates to the field of communications, and in particular to a method and apparatus for processing quasi-common location information.

Background technique

Multiple-input-multiple-output (MIMO) is one of the most important technologies in the field of wireless communications, which can improve the performance of wireless communication systems. In order to obtain high-quality wireless communication system performance, it is necessary to let the transmitting end know the channel-related information in advance. However, the wireless channel is usually in a constant state. In order to adapt to the change of the channel, in the Long Term Evolution (LTE) or Long Term Evolution-Advanced (LTE-A) system, the user The device (User Equipment, UE for short) can report the downlink channel quality information to the base station by using the downlink channel state information (CSI). The feedback content reflecting the downlink physical channel CSI in LTE includes the following three items:

(1) Channel quality indication (CQI);

(2) Pre-coding Matrix Indicator (PMI);

(3) Rank Indicator (Rank Indicator, RP for short).

The RI is responsible for indicating the rank of the channel matrix, that is, the number of data layers that can be transmitted in parallel; the PMI is responsible for providing the UE with a recommendation to transmit precoding; and the CQI is the signal for the UE to transmit the RI and PMI according to the feedback. The (Signal to Interference plus Noise Ratio, SINR for short) level estimation is responsible for the auxiliary base station to determine the Modulation ang Coding Scheme (MCS). The content of the CSI feedback is usually measured and calculated on a reference signal (Reference Signal, referred to as RS). The RS may include but is not limited to at least one of the following:

(1) Cell Specific Reference Signal (CRS);

(2) Channel State Information Reference Signal (CSI-RS);

(3) Interference Measurement Resource (IMR).

LTE adopts Orthogonal Frequency Division Multiplexing (OFDM) technology in a cell, and the same frequency is usually used between adjacent cells. Therefore, inter-cell interference is very serious, and even the cell edge performance is poor. . In order to improve the performance of the cell edge users, the Long Term Evolution-Advanced (LTE-A) system introduces Coordinated Multi-Point (CoMP) transmission technology. The CoMP technology passes multiple phases. Neighboring base stations or nodes cooperate to reduce the interference of users at the cell edge, thereby improving the quality of service. CoMP technology is mainly divided into the following three types:

(1) Joint Transmission (JT);

(2) Dynamic point selection/Dynamic point blanking (DPS/DPB);

(3) Coordinated Scheduling Coordinated Beamforming (CSCB).

In addition, in LTE/LTE A, when multipoint transmission is supported, since the base station for data transmission is transparent to the terminal, and the base station for data transmission can be dynamically switched, the terminal cannot accurately know that the received data is Which base station transmits, therefore introduces the definition of Quasi-Co-Location indicator and notification signaling.

The quasi-common position information indication, the channel state information reference signal (CSI-RS) representing the current data transmission and notification, and the user-specific demodulation pilot signal (Ue specific de-Modulation Reference Signal) , referred to as DMRS) CSI-RS pilots transmitted and notified, are quasi-co-located, and both transmit large-scale characteristics of channels similar to the notified CSI-RS pilots, such as delay spread, Doppler spread, Doppler Shift, average delay, can understand the quasi-common position as the current data and the DMRS are similarly transmitted by the same base station.

The terminal obtains a channel state information measurement pilot CSI-RS with a DMRS quasi-co-location or After the cell specific reference signal (CRS), when the channel is demodulated, some statistical characteristic parameters of the channel between the base station and the terminal can be obtained in advance according to the pilot information, and the terminal can effectively utilize the channel. These statistical characteristic parameters improve the estimation accuracy of the demodulation pilot, improve the receiver performance, effectively suppress the noise, and can apply the statistical characteristic parameters to different estimation algorithms and reception algorithms.

It should be noted that only the pilot signals transmitted by the same base station can accurately measure the statistical channel characteristics, that is, the measurement of these statistical characteristic parameters is generally for pilot signals sent by the same base station, such as CRI-RS or CRS. . Therefore, the terminal needs to know the DMRS and which CSI-RS or CRS is quasi-co-located by receiving the quasi-co-location information indication.

It should be noted that the pilot used to measure the channel state information is called a measurement pilot, such as CSI-RS in LTE A, and may have other names in other standards. The pilot used to estimate the channel for data demodulation is called a demodulation pilot, such as the DMRS pilot in LTE/LTE A, and may have other names in other standards.

In the prior art, the user can only obtain the CSI-RS of the DMRS port quasi-co-location corresponding to the target signal according to the quasi-co-location parameter, so as to perform time offset and frequency offset on the channel of the target signal according to the CSI-RS. Correction so that the channel of the target signal can be accurately estimated by DMRS, thereby improving the performance of data demodulation. However, with the development of wireless communication technology, the base stations in the network are getting denser and denser, the interference becomes more complicated and serious, and the interference on the DMRS is more and more complicated and serious.

In the current related technology, the base station only transmits the quasi-common positional relationship parameter of the signal DMRS, and the terminal cannot obtain the quasi-common position parameter information of the interfering DMRS, so that the time offset and frequency offset of the interfering channel cannot be effectively obtained, and the channel that interferes with the DMRS estimation is corrected. The problem of time offset and frequency offset, and thus interfere with DMRS, causes large interference to the signal DMRS, and the demodulation performance of the signal data also decreases.

In view of the above problems, the prior art has not proposed an effective solution.

Summary of the invention

The embodiment of the invention provides a method and a device for processing quasi-common position information, so as to solve at least In the related technology, the terminal cannot obtain the quasi-common position parameter information of the interference DMRS, so that the time offset and frequency offset of the interference channel cannot be effectively obtained, and the problem of time offset and frequency offset of the channel that interferes with the DMRS estimation is corrected.

According to an embodiment of the present invention, a method for processing quasi-common position information is provided, including:

The base station divides M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein N ₁ demodulation pilot port groups are signal demodulation pilot port groups, N ₂ The demodulation pilot port group is an interference demodulation pilot port group, M, N, N ₁ and N ₂ are both positive integers, and 1 < N ≤ M; the base station transmits the N demodulation pilot ports Quasi-common location information for the group.

Optionally, the method further includes: the base station configuring L quasi-common position parameter sets S ₀ , . . . , S _L-1 , where L is a positive integer;

The base station sends configuration information of the quasi-co-location parameter set by using first signaling.

Optionally, the method further includes:

Determining, by the base station and the terminal, grouping information of N demodulation pilot port groups; and/or

Transmitting, by the base station, packet information of N demodulation pilot port groups by using second signaling; and/or

Determining, by the base station and the terminal, packet information of the N ₁ signal demodulation pilot port group or group information of the N ₂ interference demodulation pilot port groups; and/or

Signaling the base station through the N ₁ third demodulation pilot signal group information of the port group or N ₂ interfering demodulation pilot port information packet group.

Alternatively, when N ₁ = _1, the base station and the N terminal conventions demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation pilot port group, G _2, ..., G _N is the interference demodulation pilot port group.

Optionally, the base station sends a pilot signal for data demodulation on the N ₁ demodulation pilot port groups; and the base station sends the N ₂ interference demodulation pilot port groups. A pilot signal for estimating interference channel information.

Optionally, the number of transmission layers of the base station transmitting data is the same as the number of ports of the signal demodulation pilot port group.

Optionally, the precoding used by the base station to transmit data is the same as the precoding used by the signal demodulation pilot port group; the precoding used by the base station transmission data is different from the precoding used by the interference demodulation pilot port group.

Optionally, the base station sends the quasi-common position information of the N demodulation pilot port groups, where the base station sends the quasi-common position information to the terminal by using one fourth signaling, where The fourth signaling is used to indicate an index corresponding to a set of quasi-co-location parameters of the N demodulation pilot port groups.

Optionally, the parameter of the quasi-co-location parameter set includes: N pilot pre-communication measurement pilot information, and the base station and the terminal agree to N demodulation pilot port group, one demodulation pilot port group And the measurement pilot information of one quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.

Optionally, the base station sends the quasi-common position information of the N demodulation pilot port groups, where the base station sends the quasi-common position information to the terminal by using one fourth signaling, where The fourth signaling is used to indicate an index corresponding to a set of quasi-co-location parameters of the N ₁ signal demodulation pilot port group, where the quasi-common position parameter set includes a measurement guide of a quasi-common position Frequency information.

Optionally, the base station and the terminal at least agree on one of the following:

The quasi-co-location parameter set index information of the interference demodulation pilot port group;

The quasi-common position measurement pilot information pilot sequence of the interference demodulation pilot port group is a fixed pilot sequence;

The pilot sequence of the pilot information of the quasi-co-location measurement of the interference demodulation pilot port group is the same as the pilot sequence of the measurement pilot information of the quasi-co-location of the signal demodulation pilot port group;

The base station transmits a pilot sequence of measurement pilot information that interferes with the quasi-common position of the demodulation pilot port group.

Optionally, the base station sends the quasi-co-location information of the N demodulation pilot port groups, where the base station sends the quasi-co-location information to the terminal by using N fourth signalings, where And a fourth signaling of the N fourth signalings is used to indicate N demodulation pilot port groups A quasi-co-location parameter set index of a demodulation pilot port group, wherein the quasi-co-location parameter set includes one quasi-common position measurement pilot information.

Optionally, the measurement pilot information of the quasi-co-location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location.

According to another aspect of the present invention, a method for processing quasi-common position information is provided, comprising: the terminal dividing the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , .. G _N , where N1 demodulation pilot port groups are signal demodulation pilot port groups, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ is a positive integer, and 1<N≤M; the terminal receives the quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.

Optionally, the terminal receives the first signaling, where the first signaling carries a set of L quasi-common position parameters S ₀ , . . . , S _L-1 , L is a positive integer.

Optionally, the terminal and the base station agree to group information of N demodulation pilot port groups; and/or the terminal receives second signaling, and determines N demodulation guides according to the second signaling. Group information of the frequency port group; and/or the terminal and the base station agreeing to group information of N ₁ signal demodulation pilot port groups or group information of N ₂ interference demodulation pilot port groups; and/or

The terminal receiving the third signaling, and determines the N ₁ group information signal demodulation pilot port group of N ₂ or interfering demodulation pilot packet port information according to the third group signaling.

Alternatively, when N ₁ = _1, the terminal and the base N number of conventions demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation pilot port group, G ₂ ,..., G _N is the interference demodulation pilot port group.

Optionally, the method further includes:

The terminal receives demodulation pilots on the M demodulation pilot ports;

The terminal of the M port is divided into a demodulation pilot signal demodulating the N ₁ and N ₂ port groups interfering demodulation pilot port group, according to the terminal on the N ₁ group of demodulation pilot ports The channel information on the pilot estimated data carrier is demodulated; the terminal estimates the interference channel information according to the demodulation pilots on the N ₂ interference demodulation pilot port groups.

Optionally, the method further includes: the terminal receiving one fourth signaling, where the fourth signaling is used to indicate an index corresponding to a quasi-co-location parameter set of the N demodulation pilot port groups The terminal selects a quasi-co-location parameter set of the demodulated pilot port group from the L quasi-co-location parameter sets by using the fourth signaling, and obtains a demodulation pilot port according to the selected quasi-co-location parameter set. Quasi-common location information for the group.

Alternatively, the terminal receives the location registration information of the base station co-transmitted through a fourth signaling, wherein said fourth common signaling for collimating the N ₁ position indication signal demodulation pilot port group An index corresponding to the parameter set, wherein the quasi-co-location parameter set includes measurement pilot information of one quasi-common position.

Optionally, the terminal obtains quasi-common position information of the interference demodulation pilot port group in a manner agreed with the base station, or obtains an interference solution by using a pilot sequence of the quasi-common position measurement pilot information of the interference demodulation pilot port group. Adjust the quasi-common position information of the pilot port group.

Optionally, the pilot sequence of the quasi-co-location measurement pilot information of the interference demodulation pilot port group is determined by at least one of the following methods: the fixed quasi-common position measurement pilot agreed by the terminal and the base station a pilot sequence of information; a pilot sequence of pilot information of the quasi-common position measurement pilot information of the pilot demodulation pilot port group; and a pilot sequence of pilot information of the quasi-common position measurement pilot information of the interference demodulation pilot port group received by the terminal.

Optionally, the terminal receives N fourth signaling, and the terminal obtains quasi-common position information of the i-th group of demodulation pilot port groups according to the i-th fourth signaling, where the N fourth signaling a fourth signaling for indicating a quasi-co-location parameter set index of a demodulation pilot port group of the N demodulation pilot port groups, wherein the quasi-co-location parameter set includes a quasi-common position Measuring pilot information.

Optionally, the measurement pilot information of the quasi-common location includes at least one of the following: a quasi-co-location CSI-RS resource, CSI-RS configuration of quasi-co-location, CSI-RS port group of quasi-co-location.

According to another embodiment of the present invention, a processing apparatus for quasi-common position information is provided, which is applied to a base station, and includes: a first determining module, configured to divide M demodulation pilot ports into N demodulation pilots Port group G ₁ , . . . , G _N , wherein N1 demodulation pilot port groups are signal demodulation pilot port groups, and N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M , N, N ₁ and N ₂ are both positive integers, and 1 < N ≤ M; the transmitting module is configured to transmit quasi-common position information of the N demodulation pilot port groups.

According to another embodiment of the present invention, a processing device for quasi-common position information is provided, which is applied to a terminal, and includes:

a second determining module, configured to divide the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N1 demodulation pilot port groups are signals Demodulation pilot port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; receiving module, setting The quasi-common position information corresponding to the N demodulation pilot port groups sent by the receiving base station.

The receiving module is configured to receive quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.

In the embodiment of the present invention, a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing the implementation of the processing method of the quasi-common position information in the foregoing embodiment.

According to the embodiment of the present invention, the base station divides the M demodulation pilot ports into N demodulation pilot port groups G1, ..., G _N , wherein the N ₁ demodulation pilot port groups are signal demodulation pilots. Port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; and then the N demodulation pilots are transmitted The quasi-common position information of the port group is provided to the terminal. The above technical solution solves the problem that the terminal cannot obtain the quasi-common position parameter information of the interfering DMRS in the related art, so that the time offset and frequency offset of the interfering channel cannot be effectively obtained, and the interference DMRS is corrected. The estimated time-shift and frequency offset of the channel, and the terminal can accurately obtain the quasi-common position information of the interference, accurately eliminate the influence of the interference, and improve the performance of the wireless communication system.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a block diagram showing the hardware structure of a computer terminal for processing a quasi-common position information according to an embodiment of the present invention;

2 is a flowchart of a method for processing quasi-common position information on a base station side according to Embodiment 1 of the present invention;

3 is a flowchart of a method for processing quasi-common position information on a terminal side according to Embodiment 1 of the present invention;

4 is a structural block diagram (1) of a processing apparatus for quasi-common position information on a base station side according to Embodiment 2 of the present invention;

5 is a structural block diagram of a processing apparatus for quasi-common position information on a base station side according to Embodiment 2 of the present invention; (2);

6 is a structural block diagram of a processing apparatus for quasi-common position information on a terminal side according to Embodiment 2 of the present invention;

Figure 7 is a topological diagram of a preferred embodiment 1 of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "comprises", and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or process comprising a series of steps or units. The apparatus is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not explicitly listed or inherent to such procedures, methods, products, or devices.

Example 1

According to an embodiment of the present invention, an embodiment of a method for processing quasi-common position information is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

The method embodiment provided by Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or the like. Taking a computer terminal as an example, FIG. 1 is a hardware structural block diagram of a computer terminal for processing a quasi-common position information according to an embodiment of the present invention. As shown in FIG. 1, computer terminal 10 may include one or more (only one shown) processor 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) A memory 104 for storing data, and a transmission module 106 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device. For example, computer terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.

The memory 104 can be used to store software programs and modules of the application software, such as program instructions/modules corresponding to the processing method of the page content in the embodiment of the present invention, and the processor 102 executes by executing the software programs and modules stored in the memory 104. Various functional applications and data processing, that is, the vulnerability detection method for implementing the above application. Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 104 may further include memory remotely located relative to processor 102, which may be coupled to computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 106 is for receiving or transmitting data via a network. The network specific examples described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, The transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.

In the above operating environment, the embodiment of the present invention provides a method for processing quasi-common position information as shown in FIG. 2 . 2 is a flowchart of a method of processing quasi-common position information on a base station side according to Embodiment 1 of the present invention. As shown in Figure 2, the method includes:

S202. The base station divides the M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N ₁ demodulation pilot port groups are signal demodulation pilot port groups. N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

S204. The base station sends quasi-common position information of the N demodulation pilot port groups.

It should be noted that the demodulation pilots in the embodiments of the present invention include DMRSs in LTE, and may have different names in different standards.

Through the above steps, the base station divides the M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein N ₁ demodulation pilot port groups are signal demodulation pilot ports. Group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; the base station transmits the N demodulation pilot ports The quasi-common position information of the group is given to the terminal. Through the above technical solution, the quasi-common position parameter information of the interfering DMRS cannot be obtained by the terminal in the related art, so that the time offset and frequency offset of the interfering channel can not be effectively obtained, and the interference DMRS estimation is corrected. The time offset and frequency offset of the channel, and the terminal can accurately obtain the quasi-common position information of the interference, accurately eliminate the influence of the interference, and improve the performance of the wireless communication system.

In the embodiment of the present invention, the sum of the sum of N ₁ and N ₂ is less than N. In a preferred embodiment, the sum of N ₁ and N ₂ may be N.

In a preferred embodiment of the present invention, the base station configures L quasi-common position parameter sets S ₀ , . . . , S _L-1 , where L is a positive integer; the base station sends the quasi-first signaling Configuration information for a common location parameter set.

Preferably, the above method further comprises:

When N ₁ = _1, the base station and the N terminal conventions demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation pilot port group, G _2, ..., G _N is the interference demodulation pilot port group.

Preferably, the base station transmits a pilot signal for data demodulation on the N ₁ demodulation pilot port groups; the base station transmits, on the N ₂ interference demodulation pilot port groups, information for estimating interference channel. Pilot signal.

Optionally, the number of transmission layers of the base station transmitting data is the same as the number of ports of the signal demodulation pilot port group. Alternatively, the precoding used by the base station to transmit data is the same as the precoding used by the signal demodulation pilot port group; the precoding used by the base station transmission data is different from the precoding used by the interference demodulation pilot port group.

Preferably, the base station will send the quasi-common position information of the N demodulation pilot port groups, including: the base station sends the quasi-common position information to the terminal by using one fourth signaling, where The fourth signaling is used to indicate an index corresponding to the set of quasi-co-location parameters of the N demodulation pilot port groups.

In the embodiment of the present invention, the parameters of the quasi-co-location parameter set include: N pieces of quasi-common position measurement pilot information, and the base station and the terminal agree on the i-th demodulation pilot port group and the fourth The measurement pilot information of the i-th quasi-co-location in the set of quasi-common position parameters indicated by the signaling is a quasi-co-location, i=1, . . . , N, that is, it can also be understood that the base station and the terminal agree N. The demodulation pilot port group is a demodulation pilot port group, and the measurement pilot information of one quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.

Preferably, the base station will send the quasi-common position information of the N demodulation pilot port groups, including: the base station sends the quasi-common position information to the terminal by using one fourth signaling, where The fourth signaling is used to indicate an index corresponding to the quasi-co-location parameter set of the N ₁ signal demodulation pilot port group, where the quasi-co-location parameter set includes one quasi-common position measurement pilot information.

In the embodiment of the present invention, in order for the terminal to accurately obtain the quasi-common position information, the base station and the terminal at least agree one of the following:

In the embodiment of the present invention, the base station sends the quasi-common position information of the N demodulation pilot port groups, where the base station sends the quasi-common position information to the terminal by using N fourth signalings. The fourth signaling of the N fourth signaling is used to indicate a quasi-co-location parameter set index of a demodulation pilot port group of the N demodulation pilot port groups, where the quasi-common The measurement parameter information includes a measurement pilot information of one quasi-common position.

In the embodiment of the present invention, the base station demodulates the quasi-common position information of the pilot port group by using N ₁ fourth signaling signals, where the N ₁ fourth signaling is used to indicate N ₁ signal demodulation pilots. The quasi-co-location parameter set index of the port group.

In the embodiment of the present invention, the measurement pilot information of the quasi-common location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location .

In order to better understand the technical solution of the embodiment of the present invention, the embodiment further provides a method for processing quasi-common position information. 3 is a quasi-common position on the terminal side according to Embodiment 1 of the present invention; A flowchart of a method for processing information, as shown in FIG. 3, the method includes:

S302. The terminal divides the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N ₁ demodulation pilot port groups are signal demodulation guides. a frequency port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

S304. The terminal receives the quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.

Through the above steps, the terminal divides the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , where N ₁ demodulation pilot port groups Demodulating the pilot port group for the signal, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; the terminal receiving base station transmits The quasi-common position information corresponding to the N demodulation pilot port groups is solved by the above technical solution, and the terminal can not obtain the quasi-common position parameter information of the interfering DMRS in the related art, so that the time offset and frequency of the interference channel cannot be effectively obtained. Partially, and correcting the problem of time offset and frequency offset of the channel that interferes with DMRS estimation, the terminal can accurately obtain the quasi-common position information of the interference, accurately eliminate the influence of the interference, and improve the performance of the wireless communication system.

In a preferred embodiment of the present invention, the terminal receives the first signaling, where the first signaling carries a set of L quasi-common position parameters S ₀ , . . . , S _L-1 , L Is a positive integer.

In the embodiment of the present invention, the terminal and the base station agree to group information of N demodulation pilot port groups; and/or

Receiving, by the terminal, the second signaling, and determining, according to the second signaling, packet information of the N demodulation pilot port groups; and/or

Determining, by the terminal, the packet information of the N ₁ signal demodulation pilot port group or the packet information of the N ₂ interference demodulation pilot port groups; and/or

The terminal receiving the third signaling, and determines the N ₁ group information signal demodulation pilot port group of N ₂ or interfering pilot demodulation information packet group according to the third port signaling.

In an embodiment of the present invention, when N ₁ = _1, the terminal and the base N number of conventions demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation pilot port Groups, G ₂ , ..., G _N are interference demodulation pilot port groups.

In the embodiment of the present invention, the method in this embodiment further includes:

The terminal receives demodulation pilots on the M demodulation pilot ports;

The terminal divides the M demodulation pilot ports into N ₁ signal demodulation port groups and N ₂ interference demodulation pilot port groups, and the terminal demodulates according to N ₁ demodulation pilot port groups The pilot estimates channel information on the data carrier; the terminal estimates interference channel information based on demodulation pilots on the N ₂ interference demodulation pilot port groups.

Receiving, by the terminal, a fourth signaling, where the fourth signaling is used to indicate an index corresponding to a set of quasi-co-location parameters of the N demodulated pilot port groups;

The terminal selects a quasi-co-location parameter set of the demodulated pilot port group from the L quasi-co-location parameter sets by using the fourth signaling, and obtains a quasi-demodulation pilot port group according to the selected quasi-co-location parameter set. Total location information.

In the embodiment of the present invention, the parameters of the quasi-co-location parameter set include: N pieces of quasi-common position measurement pilot information, and the base station and the terminal agree on the i-th demodulation pilot port group and the fourth The measurement pilot information of the i-th quasi-co-location in the set of quasi-common position parameters indicated by the signaling is a quasi-co-location, i=1, . . . , N, and can also be understood as a N-solution agreed between the base station and the terminal. The pilot port group is a demodulation pilot port group, and the measurement pilot information of a quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.

In an embodiment of the present invention, a fourth base station through a common signaling the location registration information to the terminal, wherein the fourth registration signaling is used to indicate the N ₁ signal demodulation pilot port group An index corresponding to the set of common location parameters, wherein the quasi-co-location parameter set includes measurement pilot information of one quasi-co-location.

Incidentally, the fourth co-registration signaling indicates the N ₁ position parameter signal demodulation pilot port group corresponding to the index set of three modes: a mode, transmitting a command, this command indicates that N port groups Quasi-common location information, because there are N CSI-RS configurations in the parameter set; mode 2, sending an instruction, which only indicates the quasi-co-location of the signal DMRS port, only one CSI-RS configuration in the parameter set, and then the interference Some agreed that the terminal itself blindly detects; mode three, sends N instructions, each corresponding to a quasi-common position of a DMRS port group.

Preferably, the terminal obtains the quasi-common position information of the interference demodulation pilot port group in a manner agreed with the base station, or

The terminal obtains the quasi-common position information of the interference demodulation pilot port group by using the pilot sequence of the pilot information of the quasi-common position measurement of the interference demodulation pilot port group.

Preferably, the pilot sequence of the quasi-co-location measurement pilot information of the interference demodulation pilot port group is determined by at least one of the following methods:

a pilot sequence of the fixed quasi-common position measurement pilot information agreed by the terminal and the base station;

a pilot sequence for measuring pilot information of a quasi-common position of a signal demodulation pilot port group;

The pilot sequence of the pilot information of the quasi-common position measurement of the interference demodulation pilot port group received by the terminal.

Preferably, the terminal receives N fourth signalings, and the terminal obtains quasi-common position information of the i-th group of demodulation pilot port groups according to the i-th fourth signaling, and the fourth of the N fourth signalings The signaling is used to indicate a quasi-co-location parameter set index of a demodulation pilot port group of the N demodulation pilot port groups, wherein the quasi-co-location parameter set includes one quasi-common position measurement pilot information .

Preferably, the measurement pilot information of the quasi-common location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (available The method of various embodiments of the present invention is implemented as a mobile phone, computer, server, or network device.

Example 2

In order to better understand the technical solution of the present invention, the embodiment of the present invention further provides a processing device for quasi-common position information, which is applied to a base station. The device is used to implement the method embodiment and the preferred embodiment of the foregoing base station side, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

4 is a structural block diagram (1) of a processing apparatus for quasi-common position information on a base station side according to Embodiment 2 of the present invention. As shown in Figure 4, the device comprises:

The first determining module 40 is configured to divide the M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N ₁ demodulation pilot port groups are signal demodulated a pilot port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

The sending module 42 is configured to send quasi-common position information of the N demodulation pilot port groups.

Through the above apparatus, the first determining module 40 divides the M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N ₁ demodulation pilot port groups are signal solutions. To adjust the pilot port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; the transmitting module 42 sends the N The quasi-common position information of the demodulation pilot port group is solved by the above technical solution, and the terminal can not obtain the quasi-common position parameter information of the interfering DMRS in the related art, so that the time offset and frequency offset of the interference channel cannot be effectively obtained, and Correcting the problem of time offset and frequency offset of the channel that interferes with DMRS estimation, the terminal can accurately obtain the quasi-common position information of the interference, accurately eliminate the influence of the interference, and improve the performance of the wireless communication system.

FIG. 5 is a structural block diagram (2) of a processing apparatus for quasi-common position information on a base station side according to Embodiment 2 of the present invention. As shown in FIG. 5, in a preferred embodiment of the present invention, the apparatus further includes a configuration module 44 configured to configure L quasi-common position parameter sets S ₀ , . . . , S _L-1 , where L is A positive integer; the sending module 42 is further configured to send, by using the first signaling, configuration information of the quasi-co-location parameter set.

Preferably, the first determining module 40 is further configured to: agree with the terminal to group information of the N demodulation pilot port groups; and/or

Transmitting, by the second signaling, packet information of the N demodulation pilot port groups; and/or

And the terminal agrees that N ₁ signals demodulate the group information of the pilot port group or the group information of the N ₂ interference demodulation pilot port groups; and/or

The N ₁ signals are transmitted through the third signaling to demodulate the packet information of the pilot port group or the packet information of the N ₂ interference demodulation pilot port groups.

When N ₁ = _1, a first determining module 40 is also provided to the terminal convention and the N demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation pilot port group, G ₂ ,..., G _N is the interference demodulation pilot port group.

Preferably, the sending module 42 is further configured to send a pilot signal for data demodulation on the N ₁ demodulation pilot port groups; and the sending module 42 is further configured to demodulate the N ₂ interferences. A pilot signal for estimating interference channel information is transmitted on the pilot port group.

Preferably, the number of transmission layers of the base station transmission data is the same as the number of ports of the signal demodulation pilot port group. Alternatively, the precoding used by the base station to transmit data is the same as the precoding used by the signal demodulation pilot port group; the precoding used by the base station transmission data is different from the precoding used by the interference demodulation pilot port group.

Preferably, the sending module 42 is further configured to send the quasi-common position information to the terminal by using one fourth signaling, where the fourth signaling is used to indicate the accuracy of the N demodulation pilot port groups. The index corresponding to the set of common location parameters.

Preferably, the parameter of the quasi-co-location parameter set includes: N pieces of quasi-co-location measurement pilot information, and the base station and the terminal agree on the i-th demodulation pilot port group and the fourth signaling index The measured pilot information of the i-th quasi-common position in the set of quasi-common position parameters is quasi-co-located, i=1, . . . , N, that is, it can be understood that the base station and the terminal agree on N demodulation. The frequency port group is a demodulation pilot port group, and the measurement pilot information of one quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.

Preferably, the sending module 42 is further configured to send, by the base station, the quasi-common position information to the terminal by using one fourth signaling, where the fourth signaling is used to indicate N1 signal demodulation pilots. An index corresponding to the set of quasi-common position parameters of the port group, wherein the quasi-common position parameter set includes measurement pilot information of one quasi-common position.

Preferably, in order to enable the terminal to accurately obtain the quasi-common position information, the first determining module 40 is further configured to agree with the terminal at least one of the following:

The sending module 42 is further configured to send a pilot sequence of measurement pilot information of the quasi-common position of the interference demodulation pilot port group.

Preferably, the sending module 42 is further configured to send the quasi-common position information to the terminal by using N fourth signaling, where a fourth signaling of the N fourth signaling is used to indicate N solutions And a quasi-co-location parameter set index of a demodulation pilot port group of the pilot port group, wherein the quasi-co-location parameter set includes one quasi-coordinate location measurement pilot information.

Preferably, the sending module 42 is further configured to: demodulate the quasi-common position information of the pilot port group by using N ₁ fourth signaling signals, where the N ₁ fourth signaling is used to indicate N ₁ signal demodulation Index of the quasi-common position parameter set of the pilot port group.

Preferably, the measurement pilot information of the quasi-co-location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location.

In order to better understand the technical solution of the present invention, the embodiment of the present invention further provides a processing device for quasi-common position information, which is applied to a terminal. The device is used to implement the foregoing method and preferred embodiment of the terminal side, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

Figure 6 is a block diagram showing the structure of a processing apparatus for quasi-common position information on the terminal side according to Embodiment 2 of the present invention. As shown in Figure 4, the device comprises:

The second determining module 60 is configured to divide the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , where N ₁ demodulation pilot port groups Demodulating the pilot port group for the signal, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

The receiving module 62 is configured to receive quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.

Through the present invention, the second determining module 60 divides the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , where N ₁ demodulation pilot ports The group is a signal demodulation pilot port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N ₁ and N ₂ are positive integers, and 1 < N ≤ M; receiving module 62 Receiving the quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station, and solving the related art, the terminal cannot obtain the quasi-common position information of the interference channel, and the interference channel cannot be effectively eliminated. The problem of inaccurate channel estimation caused by factors such as time offset and frequency offset, and the terminal can accurately obtain the quasi-common position information of the interference, accurately eliminate the influence of the interference, and improve the performance of the wireless communication system.

In a preferred embodiment of the embodiment of the present invention, the receiving module 62 is further configured to receive the first signaling, where the first signaling carries a set of L quasi-common position parameters S ₀ , ... , S _L-1 , L is a positive integer.

Preferably, the second determining module 60 is further configured to, with the base station, group information of N demodulation pilot port groups; and/or

Receiving second signaling, and determining grouping information of N demodulation pilot port groups according to the second signaling; and/or

Arranging, with the base station, N ₁ signals to demodulate the group information of the pilot port group; and/or

Receiving the third signaling, and determines the N ₁ group information signal demodulation pilot port group of N ₂ or interfering pilot demodulation information packet group according to the third port signaling.

Preferably, when N ₁ = _1, the second determination module 60, and the base station is further configured to conventions of the N demodulation pilot port group G _1, ..., G _N G ₁ in a signal demodulation The frequency port group, G ₂ , ..., G _N is the interference demodulation pilot port group.

Preferably, the receiving module 62 is further configured to receive demodulation pilots on the M demodulation pilot ports;

The second determining module 60 is further configured to divide the M demodulation pilot ports into N1 signal demodulation port groups and N ₂ interference demodulation pilot port groups, according to N ₁ demodulation pilot port groups. The demodulation pilot on the estimation channel information on the data carrier; and estimating the interference channel information based on the demodulation pilots on the N ₂ interference demodulation pilot port groups.

Preferably, the receiving module 62 is further configured to receive one fourth signaling, where the fourth signaling is used to indicate an index corresponding to the quasi-co-location parameter set of the N demodulation pilot port groups;

The second determining module 60 is further configured to: select, by using the fourth signaling, a quasi-co-location parameter set of the demodulation pilot port group from the L quasi-co-location parameter sets, and obtain the quasi-co-location parameter set according to the selected quasi-co-location parameter set. The quasi-common position information of the pilot port group is demodulated.

Preferably, the parameter of the quasi-co-location parameter set includes: measurement pilot information of N quasi-co-locations, and the base station and the terminal agree on the i-th demodulation pilot port group and the fourth signaling indication The measurement pilot information of the i-th quasi-common position in the quasi-common position parameter set is a quasi-common position, i=1, . . . , N, and can also be understood as a base station and the terminal agreeing to N demodulation pilot port. A set of demodulation pilot port groups is set, and the measurement pilot information of one quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.

Preferably, the receiving module 62 is further configured to receive quasi-common position information sent by the base station by using one fourth signaling, where the fourth signaling is used to indicate that the N1 signals are demodulated by the pilot port group. An index corresponding to the set of common location parameters, wherein the quasi-co-location parameter set includes measurement pilot information of one quasi-co-location.

It should be noted that the fourth signaling indicates that the index corresponding to the quasi-co-location parameter set of the N1 signal demodulation pilot port group includes three modes: mode one, sending an instruction, and the instruction indicates the quasi-N port group Co-location information, because there are N CSI-RS configurations in the parameter set; mode 2, sending an instruction, it only indicates the quasi-co-location of the signal DMRS port, there is only one CSI-RS configuration in the parameter set, and then the interference is some The terminal is blindly detected by itself; in the third mode, N commands are sent, each corresponding to a quasi-common position of a DMRS port group.

Preferably, the second determining module 60 is further configured to obtain quasi-co-location information of the interference demodulation pilot port group in a manner agreed with the base station, or

The quasi-common position information of the interference demodulation pilot port group is obtained by interfering with the pilot sequence of the quasi-common position measurement pilot information of the demodulation pilot port group.

Preferably, the receiving module 62 is further configured to receive N fourth signalings, and obtain quasi-common position information of the i-th group of demodulation pilot port groups according to the i-th fourth signaling, where the N fourth A fourth signaling in the signaling is used to indicate a quasi-co-location parameter set index of a demodulation pilot port group of the N demodulation pilot port groups, wherein the quasi-co-location parameter set includes one quasi Common position measurement pilot information.

Example 3

In order to better implement the technical solution of the present invention, Embodiment 3 of the present invention provides the following preferred embodiments to specifically explain the technical solutions. It should be noted that the transmission node or the base station referred to in the embodiment of the present invention includes but is not limited to: a base station, a macro base station, a micro base station, a home small base station, a wireless hotspot, a wireless remote, a relay, and the like. For convenience of description, the communication system of the embodiment is described herein in a unified manner: the communication system includes N cooperative transmission nodes, and the N transmission nodes are configured with N _t root transmission antennas, where N _t is a positive integer greater than or equal to 1. In this embodiment, the number of transmitting antennas of each communication node may be different, and N is greater than or equal to 2.

Preferred embodiment 1

Figure 7 is a topological diagram of a preferred embodiment 1 of the present invention. As shown in FIG. 7, the preferred embodiment provides a case of N=2, which can be similarly extended for the case of N>2.

In the preferred embodiment, two base stations are referred to, referred to herein as two transmission nodes. As shown in FIG. 1 , the transmission node TP1 transmits data to the user UE1, and can transmit the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH for short) in LTE. In order for UE1 to detect the received PDSCH, TP1 needs to transmit demodulation pilots with the same precoding as the PDSCH (such as DMRS in LTE), and UE1 uses DMRS to perform channel estimation on the data carrier, using the estimated data carrier. The channel detects the PDSCH. In order for UE1 to perform channel quality measurement, the transmission node TP1 needs to transmit a channel measurement related pilot (such as CSI-RS pilot or CRS pilot in LTE), so that UE1 estimates channel state information CSI according to CSI-RS or CRS. (including PMI, RI, CQI). In addition, if TP2 transmits data to the user UE2 in the same time frequency domain, it interferes with the data transmission of TP1. The method for reducing interference is that two transmission nodes perform cooperative scheduling. For example, UE1 needs to measure the channel of TP2, feed back the precoding information with the largest interference to UE1, and feed back to TP1, and TP1 feeds back the precoding information that causes greater interference to UE1. For TP2, TP2 tries to avoid using the precoding as described or to schedule users in the space related to precoding comparison.

Since the nodes of the cooperative transmission are transparent to the user and which pilot node transmits the pilot information, the user does not need to know. The base station only needs to notify the user of the current data transmission and notification. The CSI-RS/CRS, and the CSI-RS/CRS transmitted and notified by the user DMRS are quasi-co-located. In order to obtain the quasi-co-location information, the LTE operates in this way: the base station configures four parameter sets Parameter set 1 to Parameter set 4, each of which includes a physical downlink shared channel resource unit mapping (PDSCH RE mapping) parameter set. And a quasi-co-location (QCL) parameter set, which is configured through high-level signaling, and notifies the terminal of the configuration through high-level signaling.

The base station sends a downlink signaling in each downlink control channel, that is, the quasi-location information is a physical downlink shared channel resource unit mapping and a quasi-co-location indicator (PDQ RE Mapping and Quasi-Co-Location Indicator, abbreviated as PQI). ) to indicate. Determining a set of the foregoing parameter sets by using the PQI, so as to obtain which CSI-RS/CRS the DMRS corresponding to the received PDSCH corresponds to, and performing channel detection by using the CSI-RS/CRS, and performing time-shifting and frequency on the channel. Partial calibration, etc. Here, the PQI is one parameter in the downlink control signaling format 2D in the physical layer signaling, including 2 bits. As shown in Table 2, the physical downlink shared channel resource unit mapping and the quasi-common position indication signaling notify each state meaning. .

Table 2

The quasi-common location parameter set includes configuration or information of the following parameters:

1 CRS configuration parameter information, including the number of ports and parameters of the frequency domain shift;

Multicast/multicast single frequency network (MBSFN) subframe configuration parameter information;

Parameter configuration information of Zero Power (ZP) CSI-RS;

Configuration information of the physical downlink shared channel start symbol parameter PDSCH starting position;

One non-zero power (Non-Zero Power, nicknamed NZP) CSI-RS information (qcl-NZP CSI-RS).

For simplicity of description, the non-zero power CSI-RS of the quasi-co-location is simply written as a qcl NZP CSI-RS.

To make the description more intuitive, the QCL parameters are presented in tabular form. Here, the values of the different parameters in the above parameter set are summarized in Table 3 below.

table 3

In the current LTE COMP, the base station notifies the user that the DMRS ports are all quasi-co-located. That is, all DMRS ports are from the same base station, and the user and the DMRS port qcl NZP CSI-RS are notified by default or PQI notification. The terminal can estimate the time offset and frequency offset according to the qcl NZP CSI-RS. Therefore, the channel estimation of the DMRS is more accurate. However, there is no related technical expenditure. The base station notifies the user of the DMRS port, part is the DMRS port of the signalling base station, and part is the DMRS port from the interfering base station, and if the channel interfering with the DMRS port can be estimated, the interference can be estimated. Therefore, the interference is eliminated, or the time offset and frequency offset on the DMRS port are estimated according to the quasi-common position measurement pilot information of the interfering DMRS port, so that the orthogonality of the interfering DMRS and the signal DMRS port can be better ensured, thereby It can reduce the interference of the signal DMRS port. A method for transmitting a quasi-common position and a method for receiving the terminal will be described below through several embodiments. In the same downlink subframe, the base station can send the signal DMRS port quasi-co-location and the quasi-common position of the interfering DMRS port, and the terminal can also obtain the quasi-common position information of the signal DMRS port and the interfering DMRS port.

It should be noted that the DMRS port herein may have other names in other standards, such as data demodulation related pilot, demodulation dedicated pilot, etc., as long as it is used to estimate the channel on the data carrier. The pilot to demodulate the data on the data carrier is within the scope of the present invention. The CSI-RS in the embodiments of the present invention may have other names in other standards, such as measurement pilot, channel measurement pilot, and measurement related pilot, as long as the pilot used to measure channel state information is in the Within the scope of protection of the present invention, they are all equivalent concepts.

Preferred embodiment two

For the base station, the following signaling is sent.

(A1) The base station divides the M DMRS ports into N DMRS port groups G ₁ , . . . , G _N and transmits the quasi-common position information of the N DMRS port groups.

Here, each DMRS port group includes at least one DMRS port, and 1 < N ≤ M. For example, if there is a DMRS port {7, 8, 9, 10}, then it can be divided into two groups. The DMRS port group G ₁ = {7, 8}, G ₂ = {9, 10}, can also be divided into three groups G ₁ ={7,8}, G ₂ ={9}, G ₃ ={10}. Of course, there may be other groups, which are not mentioned here, and are related to the number of layers of data to be transmitted, the number of interferences, and the number of layers of interference.

Among the N sets of DMRS port numbers, N ₁ DMRS port groups are signal DMRS port groups, and N ₂ DMRS port groups are interference DMRS port groups. Wherein, in a preferred embodiment provided by the present invention, N ₁ + N ₂ = N, and N ₁ and N ₂ are positive integers. The signal DMRS port group is used to transmit a data demodulation related pilot signal, and the interference DMRS port group transmits a pilot signal for estimating interference channel information. Generally, the value of N ₁ is related to the number of signal DMRS port groups and the number of layers of data to be transmitted. Generally, the value is 1. For example, if two data layers are transmitted, then two DMRS ports for transmitting signals are needed. If divided into one group, each group has two ports. If divided into two groups, each group has one port.

Here, the number of Ns is related to the cooperative transmission node, and is generally smaller than the number of coordinated transmission nodes. Here, the transmitting nodes may be different cells/virtual cells/beams on the same site, or different cells/virtual cells/beams on the sites at different sites. For example, when two transport nodes cooperate, N=2, and when the transport nodes cooperate, N=3.

Here, the DMRS port grouping information may be agreed by the base station and the terminal. For example, the DMRS port group is scheduled to be grouped as G ₁ ={7,8}, G ₂ ={9,10} in 3 TP cooperation, in 3 TPs. When collaborating, G ₁ ={7,8}, G ₂ ={9}, G ₃ ={10}. The base station may also notify the terminal by using the second signaling, for example, by using a parameter configuration list. In the case of two TPs, the configuration list has two elements, and each element includes a DMRS port configuration, {7, 8} and {9,10}. The sending of the second signaling may be a semi-static configuration of the high-level signaling or a dynamic configuration of the physical layer signaling.

Here, for each type of DMRS port group, it may be agreed by the base station and the terminal. For example, the DMRS port group G ₁ indicates that the DMRS port type is a signal DMRS port group, and the DMRS port group other than G ₁ is an interference DMRS port group. The base station may be sent to the terminal by using the third signaling, where the third signaling may indicate an index of the signal DMRS port group. For example, when the value is 2, the DMRS port group G ₂ is a signal DMRS port group, or Indicates that the group number is less than or equal to 2 is the signal DMRS port group. The signaling may also be a set of values indicating that more than one set of DMRS port groups are signal DMRS port groups. Of course, here, the third signaling may also indicate the index of the interfering DMRS port group, which is not mentioned here.

(A2) transmitting pilot signals on M DMRS ports of the transmitting node

The transmitting node transmits a pilot signal related to data demodulation on the N ₁ signal DMRS port group; and transmits a pilot signal for estimating the interference channel information on the N ₂ interference DMRS port groups.

The description is made by using N ₁ =N ₂ =1 as a column. For example, TP1 transmits a data demodulation-related pilot signal on a N ₁ signal DMRS port group such as TP1, and TP2 transmits a pilot on N ₂ interference DMRS port groups. information. If N _{2 is} greater than 1, then there are N ₂ TPs, and each TP transmits pilot information on an interfering DMRS port group.

The number of layers of data transmitted by the transmitting node is the same as the number of ports of the signal DMRS port group.

The precoding used by the transmitting node to transmit data is the same as the precoding used by the signal DMRS port group; the precoding used by the base station to transmit data is different from the precoding used by the interfering DMRS port group.

(A3) The base station configures L quasi-common position parameter sets S ₀ , . . . , S _L-1 , and transmits the L quasi-common position parameter set information by using the first signaling.

Here, L will be greater than or equal to N.

Each parameter set includes at least N quasi-co-located CSI-RS information. In addition, other parameter information may be included, and an example of parameter information of a quasi-co-location parameter set is as follows:

1 CRS configuration parameter information;

1 MBSFN subframe configuration parameter information;

Parameter configuration information of one ZP CSI-RS;

1 PDSCH starting position;

N> NZP CSI-RS information for one quasi-common position.

Here, the NZP CSI-RS may be an NZP CSI-RS resource, or an NZP CSI-RS configuration, or an NZP CSI-RS port group. One of the NZP CSI-RSs may include one or more NZP CSI-RS configurations, and one NZP CSI-RS configuration may include one or more NZPs. CSI-RS port group.

For the sake of simplicity of description, the L quasi-common position parameter sets S ₀ ,...,S _L-1 are as shown in Table 4 below, without loss of generality, where L=4, N=2, and quasi-common position The CSI-RS information is written as qcl NZP CSI-RS.

Table 4

Here, the transmitting node transmits the quasi-common position information of the N DMRS port groups described in this embodiment (A1) through one fourth signaling. The fourth signaling indicates one of the L quasi-co-location parameter sets S ₁ -S _L .

Here, the base station and the terminal agree that the i-th qcl NZP CSI-RS information of the i-th DMRS port group and a quasi-co-location parameter set is quasi-co-located, i=1, . . . , N.

For the terminal, the following operations are performed to complete the reception of the aligned co-location information.

(B1) receiving pilot information of M DMRS ports, and dividing M DMRS ports into N DMRS port groups G ₁ , . . . , G _N . Receive quasi-common position information of N port groups.

Here, the N DMRS port groups are divided into two types of DMRS port groups, wherein N ₁ DMRS port groups are signal DMRS port groups, and N ₂ DMRS port groups are interference DMRS port groups. Wherein, N ₁ + N ₂ = N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M.

The terminal obtains information of the N DMRS port packets by using the DMRS port grouping information agreed with the base station, for example, the DMRS port group is grouped into G ₁ ={7,8}, G ₂ ={9,10} when the two TPs cooperate. When 3 TPs cooperate, G ₁ = {7, 8}, G ₂ = {9}, and G ₃ = {10}. Alternatively, the terminal receives the second signaling, and obtains information of the N DMRS port packets by using the second signaling, for example, the signaling is configured by using a parameter configuration list. In the case of two TPs, there are two in the configuration list. Elements, each element including a DMRS port configuration, {7, 8} and {9, 10}. The second signaling may be high layer signaling or physical layer signaling.

Here, for each type of DMRS port group, it may be agreed by the base station and the terminal. For example, the DMRS port group G ₁ indicates that the DMRS port type is a signal DMRS port group, and the DMRS port group other than G ₁ is an interference DMRS port group. The terminal may receive the third signaling, where the third signaling may indicate an index of the signal DMRS port group. For example, if the value is 2, the DMRS port group G ₂ is a signal DMRS port group, or the group number is smaller than Equal to 2 are the signal DMRS port groups. The signaling may also be a set of values indicating that more than one set of DMRS port groups are signal DMRS port groups. Of course, here, the third signaling may also indicate the index of the interfering DMRS port group, which is not mentioned here.

(2) The terminal estimates the channel information on the data carrier on the signal DMRS port group, and estimates the interference channel information on the interference DMRS port group.

Taking N ₁ =N ₂ =1 as a column, the terminal estimates the pilot signal related to TP1 transmission data demodulation on the N ₁ signal DMRS port group, and uses it to estimate the channel H on the data carrier, and the terminal is at N ₂ The interference channel information of the interfering transmission node to the user on each DMRS port group is estimated on the interference DMRS port. For example, the interfering transmission node is TP2, which includes the port {9, 10}, then the user estimates the channel HI on the port {9, 10}.

(B3) The terminal receives the first signaling, and determines L different quasi-common position parameter sets S ₀ , . . . , S _L-1 according to the first signaling.

1 CRS configuration parameter information;

1 MBSFN subframe configuration parameter information;

Parameter configuration information of one ZP CSI-RS;

1 PDSCH starting position;

N> NZP CSI-RS information for one quasi-common position.

Here, the NZP CSI-RS may be an NZP CSI-RS resource, or an NZP CSI-RS configuration, or an NZP CSI-RS port group. One of the NZP CSI-RSs may include one or more NZP CSI-RS configurations, and one NZP CSI-RS configuration may include one or more NZP CSI-RS port groups.

The terminal selects a quasi-co-location parameter set of the DMRS port group from the L quasi-co-location parameter sets by using one fourth signaling received in (B1), and obtains a DMRS port group according to the selected quasi-co-location parameter set. Quasi-common location information. For example, the fourth signaling is '00', then the quasi-common position parameter information representing the terminal is included in the first quasi-common position parameter set. And obtaining the quasi-common position parameter information of the terminal by using the first quasi-common position parameter set. The parameter of the quasi-co-location parameter set includes C quasi-coordinate CSI-RS information, and the terminal determines that the CSI-RS of the quasi-co-location of the i-th DMRS port group is the i-th CSI-RS information, i =1,...,N. For example, the first qcl NZP CSI-RS is a quasi-co-location NZP CSI-RS of the data DMRS port group G ₁ ={7,8}, and the DMRS port group G1 is estimated by using the first qclNZP CSI-RS. Bias, frequency offset, time offset of channel H, correction of frequency offset, get H', second qcl NZP CSI-RS is quasi-co-location NZP CSI-RS of interfering DMRS port group G ₂ ={910} And use the second qcl NZP CSI-RS to estimate the time offset, frequency offset, etc. of the interference, and correct the time offset and frequency offset of HI to obtain the channel HI'. Note that the quasi-co-location qcl NZP CSI-RS can also be used to estimate other large-scale information, such as Doppler shift, large-scale fading, etc.

After obtaining HI', it can be combined with the signal channel H' to perform more accurate data check on the channel transmitted on the data carrier, thereby improving the performance of the system. For example, the interference signal SI can be estimated by HI', and the influence of the interference signal can be subtracted from the received signal, thereby improving the accurate data detection. If there are multiple interfering DMRS port groups, the corresponding channels of the interfering DMRS port group can be similarly obtained and interference cancellation can be performed.

It should be noted that obtaining interference quasi-co-location parameter information not only can perform interference cancellation on the received signal, but also can reduce interference on the signal DMRS port, thereby obtaining a more accurate signal estimation on the demodulation carrier of the signal data. For example, on the DMRS port, since the signal DMRS and the interfering DMRS belong to different ports (in LTE, different DMRS ports may have the same set of resource units, but differentiate the DMRS ports by code division), correct the time offset, and the interference after the frequency offset. The DMRS port has less interference to the signal DMRS port, that is, obtaining the interference quasi-co-location parameter can reduce the interference of the signal DMRS port.

Preferred embodiment three

For the base station, the following signaling is sent:

Here, each DMRS port group includes at least one DMRS port, and 1 < N ≤ M. The packet is related to the number of layers of data to be transmitted, the number of interferences, and the number of layers of interference, and the example is as shown in Embodiment 1.

Among the N sets of DMRS port numbers, N ₁ DMRS port groups are signal DMRS port groups, and N ₂ DMRS port groups are interference DMRS port groups. Wherein, N ₁ + N ₂ = N, and N ₁ and N ₂ are positive integers. The signal DMRS port group is used to transmit a data demodulation related pilot signal, and the interference DMRS port group transmits a pilot signal for estimating interference channel information.

Here, the number of Ns is related to the cooperative transmission node, and is generally smaller than the number of coordinated transmission nodes. Here, the transmitting nodes may be different cells/virtual cells/beams on the same site. It is also possible to have different cells/virtual cells/beams on the sites at different sites. For example, when two transport nodes cooperate, N=2, and when the transport nodes cooperate, N=3.

Here, the DMRS port grouping information may be agreed by the base station and the terminal, and the example is as shown in Embodiment 1. The base station may also notify the terminal by using the second signaling, and the example is as shown in Embodiment 1. The sending of the second signaling may be a semi-static configuration of the high-level signaling or a dynamic configuration of the physical layer signaling.

Here, the type of each DMRS port group may be agreed by the base station and the terminal, or may be sent by the base station to the terminal through the third signaling, or may be sent by the base station to the terminal through the third signaling. Example 1 is shown.

(A2) transmitting pilot signals on M DMRS ports of the transmitting node

Here, L will be greater than or equal to N.

Each parameter set includes at least one CSI-RS information of a quasi-co-location. In addition, other parameter information may be included, and an example of parameter information of a quasi-co-location parameter set is as follows:

1 CRS configuration parameter information;

1 MBSFN subframe configuration parameter information;

Parameter configuration information of one ZP CSI-RS;

1 PDSCH starting position;

NZP CSI-RS information for one quasi-common location.

For the sake of simplicity of description, the L quasi-common position parameter sets S ₀ ,...,S _{L-1 are} written in the form of Table 2, which is consistent with the current LTE, without loss of generality, where L=4, and The co-located CSI-RS information is written as qcl NZP CSI-RS.

Here, the transmitting node sends the quasi-common position information of the N DMRS port groups described in this embodiment (A1) through the N fourth signalings. The fourth signaling indicates one of the L quasi-co-location parameter sets S ₁ -S _L .

For the terminal, the following operations are performed to complete the reception of the aligned co-location information:

The terminal obtains information of N DMRS port packets by using DMRS port grouping information agreed with the base station, and an example is as shown in Embodiment 1. Alternatively, the terminal receives the second signaling, and obtains information of the N DMRS port packets by using the second signaling.

Here, for each type of DMRS port group, it may be agreed by the base station and the terminal. The terminal may also receive the third signaling, and the third signaling may indicate an index of the signal DMRS port group or an index of the interference DMRS port group.

(B2) The terminal estimates channel information on the data carrier on the signal DMRS port group, and estimates interference channel information on the interfering DMRS port group.

Taking N ₁ =N ₂ =1 as a column, the terminal estimates the pilot signal related to the TP1 transmission data demodulation on the N ₁ signal DMRS port group, and uses it to estimate the channel H on the data carrier, and the terminal is at N ₂ The channel information of the interfering transmission node to the user on each DMRS port group is estimated on the interfering DMRS port. For example, if the interfering transmission node is TP2, which includes the port {9, 10}, then the user estimates the channel HI on the port {9, 10}.

The L quasi-common position parameter sets S ₀ , . . . , S _{L-1 are} identical to those described in (A3) of the present embodiment.

The terminal uses the N fourth signalings received in (B1), and uses the ith fourth signaling to select a quasi-co-location parameter set of the i-th DMRS port group from the L quasi-co-location parameter sets, and according to The selected quasi-co-location parameter set obtains quasi-common position information of the DMRS port group. The terminal determines that the CSI-RS of the quasi-co-location of the i-th DMRS port group is the qcl NZP CSI-RS information in the quasi-co-location parameter set indicated by the i-th fourth signaling, i=1, . . . , N. For example, the qcl NZP CSI-RS in the quasi-co-location parameter set indicated by the first fourth signaling is a quasi-co-location NZP CSI-RS of the data DMRS port group G ₁ ={7,8}, using the qclNZP CSI-RS is estimated DMRS port group G ₁ side, frequency offset, bias, and when the correct frequency offset for the channel H, to give H ', a set of co-location parameter registration signaling indicates the second in the fourth The qcl NZP CSI-RS is a quasi-co-location NZP CSI-RS that interferes with the DMRS port group G ₂ ={910}, and uses the qcl NZP CSI-RS to estimate the time offset, frequency offset, etc. of the interference, and performs time offset on the HI. The correction of the frequency offset gives the channel HI'. Note that the quasi-co-location qcl NZP CSI-RS can also be used to estimate other large-scale information, such as Doppler shift, large-scale fading, etc.

Preferred embodiment four

For the base station, the following signaling is sent:

(A2) The pilot node transmits pilot signals on M DMRS ports.

(A3) The base station configures L quasi-common position parameter sets S ₀ , . . . , S _L-1 to transmit the L quasi-common position parameter set information by using the first signaling.

Here, L will be greater than or equal to N.

1 CRS configuration parameter information;

1 MBSFN subframe configuration parameter information;

Parameter configuration information of one ZP CSI-RS;

1 PDSCH starting position;

NZP CSI-RS information for one quasi-common location.

Here, the transmitting node transmits the quasi-common position information of the signal DMRS port group in the N DMRS port groups described in this embodiment (A1) by using one fourth signaling. The fourth signaling indicates one of the L quasi-co-location parameter sets S ₁ -S _L .

The quasi-common position parameter set indicated by the one fourth signaling is the quasi-common position information of the signal DMRS port.

The quasi-co-location parameter set index that interferes with the DMRS port is agreed by the reference and the terminal. For example, the minimum N ₂ quasi-co-location parameter set index outside the index indicated by the fourth signaling is the interfering quasi-co-location parameter set index.

Alternatively, the terminal and the base station agree that the CSI-RS pilot sequence of the quasi-co-location of the DMRS port group of the interference is the same as the CSI-RS pilot sequence of the quasi-co-location of the signal DMRS port.

Or the base station sends a pilot sequence number that interferes with the DMRS port group to the terminal.

(B2) The terminal estimates channel information on the data carrier on the signal DMRS port group, and estimates interference channel information on the interference DMRS port group

Taking N ₁ =N ₂ =1 as a column, the terminal estimates the pilot signal related to TP1 transmission data demodulation on the N ₁ signal DMRS port group, and uses it to estimate the channel H on the data carrier, and the terminal is at N ₂ The channel information of the interfering transmission node to the user on each DMRS port group is estimated on the interfering DMRS port. For example, if the interfering transmission node is TP2, which includes the port {9, 10}, then the user estimates the channel HI on the port {9, 10}.

The terminal uses one fourth signaling received in (B1), and uses the fourth signaling to select a quasi-co-location parameter set of the signal DMRS port group from the L quasi-co-location parameter sets, and according to the selected standard The common location parameter set obtains quasi-common location information of the DMRS port group. For example, the qcl NZP CSI-RS in the quasi-co-location parameter set indicated by the fourth signaling is a quasi-co-location NZP CSI-RS of the data DMRS port group G ₁ ={7,8}, using the qclNZP CSI-RS Estimate the time offset and frequency offset of the DMRS port group G1, and correct the time offset of the channel H and correct the frequency offset to obtain H'.

The quasi-co-location parameter set index of the interfering DMRS port group can be obtained by one of the following methods:

The terminal obtains a quasi-co-location parameter set index of the interfering DMRS port group in a manner agreed with the base station, for example, the minimum N ₂ quasi-co-location parameter set index outside the index indicated by the fourth signaling is the quasi-common of the interference. Location parameter set index. For example, if the value of the fourth signaling of the indication signal DMRS port group is 2, then the value other than 2 has {0, 1, 3}, and the terminal uses the quasi-co-location parameter set corresponding to the minimum index 0 as the first interference DMRS. The port group's quasi-common position parameter set index, and use it to find its own quasi-common position parameter information. If there are more than one interfering DMRS port group, and so on. or

The terminal obtains the quasi-common position information of the interfering DMRS port group by using the CSI-RS pilot sequence of the quasi-co-location of the interfered DMRS port group. Without loss of generality, assuming that the quasi-co-location parameter used by the signal DMRS port indicated by the fourth signaling is set to the ith, the quasi-co-location parameter set of the interfering DMRS port group may be from the remaining L-1 quasi-common The position parameter sets S ₀ , ... S _i-1 , S _i+1 , ..., S _L-1 are selected. The terminal estimates the channel HI _j corresponding to the qcl NZP CSI-RS in the quasi-co-location parameter set S _j by using the CSI-RS pilot sequence C0 of the quasi-co-location of the agreed interference DMRS port group, and calculates a channel parameter PI by using HI _j _j , where PI _j may be a signal to noise ratio, a signal dry ratio, a received power, a binary norm of the channel HI _j , and the like.

The set of quasi-common position parameters of the largest PI _{j is} selected as the quasi-common position information of the interfering DMRS port group, where j=0, . . . , i-1, i+1, . . . L-1.

The CSI-RS pilot sequence that interferes with the quasi-co-location of the DMRS port group may be a base station. The fixed CSI-RS pilot sequence agreed with the terminal, or the CSI-RS pilot sequence of the quasi-co-located position of the signal DMRS port group, or the terminal receives the CSI-RS pilot sequence transmitted by the base station.

After obtaining the quasi-co-location of the interfering DMRS port group by the above method, the qcl NZP CSI-RS is used to estimate the time offset, frequency offset, etc. of the interference, and the time offset and frequency offset of the HI are corrected to obtain the channel HI'. Note that the quasi-co-location qcl NZP CSI-RS can also be used to estimate other large-scale information, such as Doppler shift, large-scale fading, etc.

Example 4

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium may be used to save the program code executed by the processing method of the quasi-common position information provided in the first embodiment.

Optionally, in this embodiment, the foregoing storage medium may be located in any one of the computer terminal groups in the computer network, or in any one of the mobile terminal groups.

Optionally, in the present embodiment, the storage medium is arranged to store program code for performing the following steps:

S1. The base station divides the M demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , wherein the N ₁ demodulation pilot port groups are signal demodulation pilot port groups. N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

S2. The base station sends quasi-common position information of the N demodulation pilot port groups.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The terminal divides the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G ₁ , . . . , G _N , where N ₁ demodulation pilot port groups are signal demodulation guides. a frequency port group, N ₂ demodulation pilot port groups are interference demodulation pilot port groups, M, N, N ₁ and N ₂ are positive integers, and 1 < N ≤ M;

S2. The terminal receives the quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

In the above-mentioned embodiments of the present invention, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In the several embodiments provided by the present application, it should be understood that the disclosed technical contents may be implemented in other manners. 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 may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.

The units described as separate components may or may not be physically separated, 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 purpose of the solution of the embodiment.

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 may contribute 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, including instructions for causing 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 U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Claims

A method for processing quasi-common position information, comprising:

The base station divides M demodulation pilot ports into N demodulation pilot port groups G 1 , . . . , G N , wherein N 1 demodulation pilot port groups are signal demodulation pilot port groups, N 2 The demodulation pilot port group is an interference demodulation pilot port group, and M, N, N 1 and N 2 are positive integers, and 1 < N ≤ M;

The base station sends quasi-common position information of the N demodulation pilot port groups.
The method of claim 1 wherein the method further comprises:

The base station configures L quasi-common position parameter sets S 0 , . . . , S L-1 , where L is a positive integer;

The base station sends configuration information of the quasi-co-location parameter set by using first signaling.
The method of claim 1 wherein the method further comprises:

Determining, by the base station and the terminal, grouping information of N demodulation pilot port groups; and/or

Transmitting, by the base station, packet information of N demodulation pilot port groups by using second signaling; and/or

Determining, by the base station and the terminal, packet information of the N 1 signal demodulation pilot port group or group information of the N 2 interference demodulation pilot port groups; and/or

Signaling the base station through the N 1 third demodulation pilot signal group information of the port group or N 2 interfering demodulation pilot port information packet group.
The method according to claim 1, wherein, when N 1 = 1, the base station and the N terminal conventions demodulation pilot port group G 1, ..., G N G 1 in a signal demodulation The frequency port group, G 2 , ..., G N is the interference demodulation pilot port group.
The method of claim 1 wherein

The base station transmits a pilot signal for data demodulation on the N 1 demodulation pilot port groups; the base station transmits an estimated interference channel on the N 2 interference demodulation pilot port groups The pilot signal of the information.
The method of claim 1 wherein

The number of transmission layers of the base station transmitting data is the same as the number of ports of the signal demodulation pilot port group.
The method of claim 6 wherein

The precoding used by the base station to transmit data is the same as the precoding used by the signal demodulation pilot port group;

The precoding used by the base station to transmit data is different from the precoding used by the interference demodulation pilot port group.
The method according to claim 2, wherein the base station transmits the quasi-common position information of the N demodulation pilot port groups, including:

The base station sends the quasi-co-location information to the terminal by using one fourth signaling, where the fourth signaling is used to indicate an index corresponding to the quasi-co-location parameter set of the N demodulation pilot port groups.
The method according to claim 8, wherein the parameters of the quasi-co-location parameter set include: N pilot co-located position measurement pilot information, and the base station and the terminal agree on an N demodulation pilot port group. A demodulation pilot port group, and the measurement pilot information of a quasi-co-location in the quasi-co-location parameter set indicated by the fourth signaling is quasi-co-located.
The method of claim 2 wherein said base station will transmit said N Quasi-common position information of the demodulation pilot port group, including:

The base station transmits the registration information through a co-located signaling to the fourth terminal, wherein said fourth common signaling for collimating the N 1 position parameter indicative of demodulation pilot signal set by the port group Corresponding index, wherein the quasi-co-location parameter set includes measurement pilot information of one quasi-co-location.
The method of claim 10, wherein the base station and the terminal at least agree on one of the following:

The quasi-co-location parameter set index information of the interference demodulation pilot port group;

The quasi-common position measurement pilot information pilot sequence of the interference demodulation pilot port group is a fixed pilot sequence;

The pilot sequence of the pilot information of the quasi-co-location measurement of the interference demodulation pilot port group is the same as the pilot sequence of the measurement pilot information of the quasi-co-location of the signal demodulation pilot port group;

The base station transmits a pilot sequence of measurement pilot information that interferes with the quasi-common position of the demodulation pilot port group.
The method according to claim 2, wherein the base station transmits the quasi-common position information of the N demodulation pilot port groups, including:

Sending, by the N fourth signaling, the quasi-co-location information to the terminal, where a fourth signaling of the N fourth signaling is used to indicate N demodulation pilot port groups A quasi-co-location parameter set index of a demodulation pilot port group, wherein the quasi-co-location parameter set includes one quasi-common position measurement pilot information.
A method according to any one of claims 9-12, wherein

The measurement pilot information of the quasi-common location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location.
A method for processing quasi-common position information, comprising:

The terminal divides the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G 1 , . . . , G N , wherein the N 1 demodulation pilot port groups are signal demodulation pilot ports. Group, N 2 demodulation pilot port groups are interference demodulation pilot port groups, M, N, N 1 and N 2 are positive integers, and 1 < N ≤ M;

The terminal receives the quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.
The method of claim 14 wherein

The terminal receives the first signaling, where the first signaling carries a set of L quasi-common position parameters S 0 , . . . , S L-1 , L is a positive integer.
The method of claim 14 wherein

Determining, by the terminal, the group information of the N demodulation pilot port groups with the base station; and/or

Receiving, by the terminal, second signaling, and determining, according to the second signaling, packet information of N demodulation pilot port groups; and/or

The terminal and the base station agree to group information of N 1 signal demodulation pilot port groups or group information of N 2 interference demodulation pilot port groups; and/or

The terminal receiving the third signaling, and determines the N 1 group information signal demodulation pilot port group of N 2 or interfering demodulation pilot packet port information according to the third group signaling.
The method according to claim 14, wherein when N 1 = 1, the terminal and the base N number of conventions demodulation pilot port group G 1, ..., G N G 1 is the signal of solution The pilot port group, G 2 , . . . , G N is the interference demodulation pilot port group.
The method of claim 14, wherein the method further comprises:

The terminal receives demodulation pilots on the M demodulation pilot ports;

The terminal of the M port is divided into a demodulation pilot signal demodulating the N 1 and N 2 port groups interfering demodulation pilot port group, according to the terminal on the N 1 group of demodulation pilot ports The channel information on the pilot estimated data carrier is demodulated; the terminal estimates the interference channel information according to the demodulation pilots on the N 2 interference demodulation pilot port groups.
The method of claim 15 wherein the method further comprises:

The terminal receives one fourth signaling, where the fourth signaling is used to indicate an index corresponding to a set of quasi-co-location parameters of the N demodulation pilot port groups;

The terminal selects a quasi-co-location parameter set of the demodulated pilot port group from the L quasi-co-location parameter sets by using the fourth signaling, and obtains a demodulation pilot port group according to the selected quasi-co-location parameter set. Quasi-common location information.
The method of claim 19, wherein

The parameter of the quasi-co-location parameter set includes: measurement pilot information of N quasi-co-locations, and the base station and the terminal agree that the N demodulation pilot port group is a demodulation pilot port group, and the The measurement pilot information of one quasi-co-location in the set of quasi-common position parameters indicated by the fourth signaling is quasi-co-located.
The method of claim 20, wherein

The terminal station receiving the location registration information transmitted by co a fourth signaling, wherein said fourth common signaling for collimating the N 1 position parameter indicative of demodulation pilot signal set corresponding port group An index, wherein the quasi-co-location parameter set includes measurement pilot information of one quasi-co-location.
The method of claim 20, wherein

The terminal obtains quasi-common position information of the interference demodulation pilot port group in a manner agreed with the base station, or

The terminal obtains the quasi-common position information of the interference demodulation pilot port group by using the pilot sequence of the pilot information of the quasi-common position measurement of the interference demodulation pilot port group.
The method of claim 22, wherein

The pilot sequence of the quasi-co-location measurement pilot information of the interference demodulation pilot port group is determined by at least one of the following methods:

a pilot sequence of the fixed quasi-common position measurement pilot information agreed by the terminal and the base station;

a pilot sequence for measuring pilot information of a quasi-common position of a signal demodulation pilot port group;

The pilot sequence of the pilot information of the quasi-common position measurement of the interference demodulation pilot port group received by the terminal.
The method of claim 14 wherein

The terminal receives N fourth signalings, and the terminal obtains quasi-common position information of the i-th group of demodulation pilot port groups according to the i-th fourth signaling, where one of the N fourth signalings The fourth signaling is used to indicate a quasi-co-location parameter set index of a demodulation pilot port group of the N demodulation pilot port groups, wherein the quasi-common position parameter set includes one quasi-common position measurement pilot information.
A method according to any one of claims 20-24, wherein

The measurement pilot information of the quasi-common location includes at least one of the following: a CSI-RS resource of a quasi-co-location, a CSI-RS configuration of a quasi-co-location, and a CSI-RS port group of a quasi-co-location.
A processing device for quasi-common position information is applied to a base station, including:

a first determining module, configured to divide the M demodulation pilot ports into N demodulation pilot port groups G 1 , . . . , G N , wherein the N 1 demodulation pilot port groups are signal demodulation guides a frequency port group, N 2 demodulation pilot port groups are interference demodulation pilot port groups, M, N, N 1 and N 2 are positive integers, and 1 < N ≤ M;

And a sending module, configured to send quasi-common position information of the N demodulation pilot port groups.
A processing device for quasi-common position information is applied to a terminal, including:

a second determining module, configured to divide the M demodulation reference signal demodulation pilot ports into N demodulation pilot port groups G 1 , . . . , G N , wherein the N 1 demodulation pilot port groups are Signal demodulation pilot port group, N 2 demodulation pilot port groups are interference demodulation pilot port groups, M, N, N 1 and N 2 are positive integers, and 1 < N ≤ M;

The receiving module is configured to receive quasi-common position information corresponding to the N demodulation pilot port groups sent by the base station.