CN110071788B

CN110071788B - Channel state information reference signal transmission method, network equipment and terminal

Info

Publication number: CN110071788B
Application number: CN201810151802.0A
Authority: CN
Inventors: 施源; 宋扬; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-01-24
Filing date: 2018-02-14
Publication date: 2022-03-08
Anticipated expiration: 2038-02-14
Also published as: CN110071788A

Abstract

The invention discloses a channel state information reference signal transmission method, network equipment and a terminal, wherein the method comprises the following steps: when transmission resources of the NZP CSI-RS and the ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping one with higher periodic characteristic priority to the overlapped transmission resources for transmission according to the periodic characteristic priority; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same, transmission is carried out according to the power characteristic priorities, and CSI-RS resource scheduling conflicts can be reduced.

Description

Channel state information reference signal transmission method, network equipment and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a channel state information reference signal transmission method, a network device, and a terminal.

Background

The Channel State Information Reference Signals (CSI-RS) are a type of Reference signal configured by a network device to a terminal, and may be divided into Non-Zero Power (NZP) CSI-RS and Zero Power (Zero Power, ZP) CSI-RS. The NZP CSI-RS is mainly used for channel measurement, beam training and the like, and the ZP CSI-RS is mainly used for rate-matching (rate-matching), interference measurement and the like.

In a New Radio (NR) communication system, the network equipment can configure the NZP CSI-RS and the ZP CSI-RS and indicate indication information of the NZP CSI-RS and the ZP CSI-RS. Since both the nzp CSI-RS and the ZP CSI-RS can be configured as a periodic (periodic) signal, a semi-continuous (semi-periodic) signal, and an aperiodic (aperiodic) signal. Due to the fact that the CSI-RS resource configuration is particularly flexible, the NZP CSI-RS resource configured for the terminal by the network equipment and the ZP CSI-RS resource may overlap, namely, the NZP CSI-RS and the ZP CSI-RS are configured on the same resource, and the NZP CSI-RS and the ZP CSI-RS resource collide. In another case, the transmission resources of the Channel State Information Interference Measurement Signal (CSI-IM) and the power-added Channel State Information Reference Signal ZP CSI-RS may also collide.

Disclosure of Invention

The embodiment of the invention provides a channel state information reference signal transmission method, network equipment and a terminal, and aims to solve the problem of CSI-RS resource collision.

In a first aspect, an embodiment of the present invention provides a method for transmitting a channel state information reference signal, which is applied to a network device side, and includes:

when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority;

if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority to an overlapped transmission resource for transmission according to the periodic characteristic priorities;

and if the periodic characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, mapping the higher power priority of the NZP CSI-RS and the ZP CSI-RS to the overlapped transmission resources for transmission according to the power characteristic priority.

In a second aspect, an embodiment of the present invention further provides a network device, including:

the first processing module is used for determining the priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS are overlapped;

the first transmission module is used for mapping one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority to the overlapped transmission resources for transmission according to the periodic characteristic priority if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different;

and the second transmission module is used for mapping one of the NZP CSI-RS and the ZP CSI-RS with higher power priority to the overlapped transmission resource for transmission according to the power characteristic priority if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same.

In a third aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and operable on the processor, and the processor, when executing the computer program, implements the steps of the above-mentioned channel state information reference signal transmission method.

In a fourth aspect, an embodiment of the present invention provides a method for transmitting a channel state information reference signal, which is applied to a terminal side, and includes:

when the transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are determined to be overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority;

if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, detecting one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority on the overlapped transmission resources according to the periodic characteristic priorities;

and if the period characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, detecting the higher priority of the NZP CSI-RS and the ZP CSI-RS on the overlapped transmission resources according to the power characteristic priority.

In a fifth aspect, an embodiment of the present invention provides a terminal, including:

the second processing module is used for determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the period characteristic priority when the transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS are determined to be overlapped;

the first detection module is used for detecting one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority on the overlapped transmission resources according to the periodic characteristic priority if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different;

and the second detection module is used for detecting one of the NZP CSI-RS and the ZP CSI-RS with higher priority on the overlapped transmission resources according to the power characteristic priority if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same.

In a sixth aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the above-mentioned csi-rs transmission method.

In a seventh aspect, an embodiment of the present invention provides a method for transmitting a csi interference measurement signal, where the method is applied to a network device side, and the method is characterized in that the method includes:

when transmission resources of a channel state information interference measurement signal CSI-IM and a zero-power channel state information reference signal ZP CSI-RS are overlapped, the priority of the CSI-IM is higher than that of the ZP CSI-RS; and

and mapping the CSI-IM to the overlapped transmission resources for transmission.

In an eighth aspect, an embodiment of the present invention provides a method for transmitting a csi interference measurement signal, where the method is applied to a terminal side, and the method includes:

when the transmission resources of a channel state information interference measurement signal CSI-IM and a zero-power channel state information reference signal ZP CSI-RS are determined to be overlapped, the priority of the CSI-IM is determined to be higher than that of the ZP CSI-RS.

Thus, according to the channel state information reference signal transmission method, the network device and the terminal provided by the embodiment of the invention, when transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS are overlapped, the transmission is carried out according to the priority rule, so that resource scheduling conflict of the NZP CSI-RS and the ZP CSI-RS can be avoided. On the other hand, when the CSI-IM and ZP CSI-RS transmission resources are overlapped or collided, the priority rule is adopted for transmission, so that the conflict of the CSI-IM and ZP CSI-RS can be avoided, and the communication efficiency and the effectiveness are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic flow chart illustrating a method for transmitting a csi reference signal on a network device side according to an embodiment of the present invention;

fig. 2 shows a mapping diagram of NZP CSI-RS and ZP CSI-RS resource conflicts according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for transmitting a csi interference measurement signal at a network device side according to an embodiment of the present invention;

FIG. 4 is a first block diagram illustrating a module structure of a network device according to an embodiment of the present invention;

FIG. 5 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 6 shows a block diagram of a network device of an embodiment of the invention;

fig. 7 is a flowchart illustrating a method for transmitting csi-rs at a terminal according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating a method for transmitting a csi-sir interference measurement signal at a terminal according to an embodiment of the present invention;

fig. 9 is a first schematic block diagram of a network device according to an embodiment of the present invention;

FIG. 10 is a block diagram of a network device according to an embodiment of the present invention;

fig. 11 shows a block diagram of a terminal according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

An embodiment of the present invention provides a method for transmitting a channel state information reference signal, which is applied to a network device side, and as shown in fig. 1, the method may include the following steps:

step 11: when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority.

Wherein, the overlapping of transmission resources of the NZP CSI-RS and the ZP CSI-RS means that: at least one Resource Element (RE) scheduled for the NZP CSI-RS overlaps with at least one RE scheduled for the ZP CSI-RS.

In one embodiment, the periodic characteristic may include: periodic transmission, semi-persistent transmission, and aperiodic transmission. That is, the NZP CSI-RS and the ZP CSI-RS may be periodically transmitted, semi-continuously transmitted, or non-periodically transmitted. The periodic characteristic priorities include: the priority of the aperiodic transmission is higher than the priority of the semi-persistent transmission, which is higher than the priority of the periodic transmission. For example, the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the semi-continuously transmitted ZP CSI-RS, and the priority of the non-periodically transmitted ZP CSI-RS is higher than that of the semi-continuously transmitted NZP CSI-RS. It should be noted that the above description is only for illustrative purpose and is not meant to be a limitation of the present invention.

Step 12: and if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping the higher periodic characteristic priority of the NZP CSI-RS and the ZP CSI-RS to the overlapped transmission resources for transmission according to the periodic characteristic priorities.

When the cycle characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, the priorities of the NZP CSI-RS and the ZP CSI-RS can be determined according to the sequence of the cycle characteristic priorities. For example: the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the semi-continuously transmitted ZP CSI-RS, and at the moment, the network equipment maps the NZP CSI-RS with the higher priority to the overlapped transmission resources for transmission.

Step 13: and if the periodic characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, mapping the higher power priority of the NZP CSI-RS and the ZP CSI-RS to the overlapped transmission resources for transmission according to the power characteristic priority.

When the cycle characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same, the priorities of the NZP CSI-RS and the ZP CSI-RS cannot be determined only according to the cycle characteristic priorities, and the priorities of the NZP CSI-RS and the ZP CSI-RS can be determined by further considering the power characteristic priorities.

In one embodiment, the power characteristics include: non-zero power and zero power; the power characteristic priorities include: the priority of the non-zero power CSI-RS is higher than that of the zero power CSI-RS. For example, the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the non-periodically transmitted ZP CSI-RS, and at this time, the network device maps the higher priority NZP CSI-RS to the overlapped transmission resources for transmission.

Preferably, before step 11, the method may further include: and configuring transmission resources of the NZP CSI-RS and the ZP CSI-RS for the terminal, and generating corresponding indication information. The indication information carries configuration information of the NZP CSI-RS and the ZP CSI-RS. After the network equipment configures the transmission resources of the NZP CSI-RS and the ZP CSI-RS for the terminal, whether the NZP CSI-RS and the ZP CSI-RS have resource conflict or not can be determined, and the problem of information transmission failure caused by the resource conflict can be solved by referring to the modes from step 11 to step 13 after the resource conflict is determined.

After the step of generating the corresponding indication information, the method may further include: and sending the indication information to the terminal to indicate the transmission resource information of the NZP CSI-RS and the ZP CSI-RS to the terminal. It is to be noted that the network device may transmit before step 11, may transmit after

step

12 or 13, may transmit between step 11 and step 12, and may also transmit between step 11 and step 13, and the transmission timing of the indication information is not particularly limited in the embodiment of the present invention.

In addition, the network equipment also sends indication information of the NZP CSI-RS and the ZP CSI-RS to the terminal, and the indication information is used for indicating transmission resources of the NZP CSI-RS and the ZP CSI-RS, so that the terminal can determine whether resource conflict occurs to the NZP CSI-RS and the ZP CSI-RS according to the indication information.

As another optional implementation, the downlink channel and the downlink reference signal are received in a high-priority Transmission Configuration Indication (TCI) state according to a preset or network device configured priority rule during the collision time;

wherein the conflict time comprises: the method comprises the steps of setting the overlapping time between the use time of the TCI state of the PDSCH/DMRS configured or indicated by the network equipment and the use time of the TCI state of the CSI-RS, or setting the overlapping time between the use times of the TCI states of a plurality of CORESETs configured by the base station.

The TCI state of the downlink data channel PDSCH/DMRS indicates the receiving of the spatial quasi-co-location (QCL) parameters of the downlink data channel PDSCH/DMRS. The TCI state of the CSI-RS indicates reception of spatial QCL parameters of the CSI-RS. The TCI status of the CORESET indicates the spatial QCL parameters of the CORESET are received.

The preset or the priority rule configured by the base station comprises at least one of the following items:

the priority of the TCI state of the PDSCH/DMRS of the downlink data channel is higher than that of the TCI state of the CSI-RS;

the priority of the TCI state of the PDSCH/DMRS of the downlink data channel is lower than that of the TCI state of the CSI-RS;

the highest priority of the TCI states of CORESET is the TCI state identifying the smallest CORESET or the TCI state identifying the largest CORESET.

The TCI state of the PDSCH/DMRS of the downlink data channel can be a TCI state which is scheduled by the DCI and is effective.

The highest priority of the TCI state of the CORESET may also be preset or other priority rules configured by the base station, such as identifying that the TCI state of the CORESET with certain characteristics has the highest priority.

In the following, the embodiment of the present invention will further describe a transmission method for a channel state information reference signal in combination with a specific application scenario, as shown in fig. 2, at least part of transmission resources (where the ZP CSI-RS at the upper right corner in the drawing overlaps with the ZP CSI-RS at the upper left corner) of the NZP CSI-RS (where the diagonal part is filled in fig. 2) and the ZP CSI-RS (where the grid part is filled in fig. 2) overlap.

Scene one, collision of periodically transmitted NZP CSI-RS and non-periodic ZP CSI-RS

In the scene, the NZP CSI-RS is in periodic transmission, the ZP CSI-RS is in aperiodic transmission, and since the priority of the aperiodic transmission is higher than that of the periodic transmission, when the NZP CSI-RS in the periodic transmission collides with the ZP CSI-RS in the aperiodic transmission, the network device configures and transmits the resource according to the resource of the aperiodic ZP CSI-RS on the collided resource, and accordingly, the terminal side receives the indication information of the NZP CSI-RS in the periodic transmission and the ZP CSI-RS in the aperiodic transmission configured by the network device and demodulates the indication information according to the ZP CSI-RS in the aperiodic transmission.

Scene two, collision between the periodically transmitted NZP CSI-RS and the semi-continuously transmitted ZP CSI-RS occurs

In this scenario, the NZP CSI-RS is periodic transmission, the ZP CSI-RS is semi-continuous transmission, and since the priority of the semi-continuous transmission is higher than that of the periodic transmission, when the NZP CSI-RS in the periodic transmission collides with the ZP CSI-RS in the semi-continuous transmission, the network device configures and transmits the resource according to the resource of the ZP CSI-RS in the semi-continuous transmission on the collided resource, and accordingly, the terminal side receives the indication information of the NZP CSI-RS in the periodic transmission and the ZP CSI-RS in the semi-continuous transmission configured by the network device and demodulates the indication information according to the ZP CSI-RS in the semi-continuous transmission.

In scene three, collision between the semi-continuously transmitted NZP CSI-RS and the periodically transmitted ZP CSI-RS occurs

In this scenario, the NZP CSI-RS is semi-persistent transmission, the ZP CSI-RS is periodic transmission, and since the priority of the semi-persistent transmission is higher than that of the periodic transmission, when the semi-persistent transmission NZP CSI-RS and the periodic transmission ZP CSI-RS collide with each other, the network device configures and transmits the resource according to the resource of the semi-persistent transmission NZP CSI-RS on the collided resource, and accordingly, the terminal side receives indication information of the semi-persistent transmission NZP CSI-RS and the periodic transmission ZP CSI-RS configured by the network device and demodulates according to the indication information of the semi-persistent transmission NZP CSI-RS.

In scene four, collision of semi-continuously transmitted NZP CSI-RS and non-periodically transmitted ZP CSI-RS occurs

In the scene, the NZP CSI-RS is semi-persistent transmission, the ZP CSI-RS is non-periodic transmission, and since the priority of the non-periodic transmission is higher than that of the semi-persistent transmission, when the NZP CSI-RS in the semi-persistent transmission collides with the ZP CSI-RS in the non-periodic transmission, the network device configures and transmits the resource according to the resource of the ZP CSI-RS in the non-periodic transmission on the collided resource, and correspondingly, the terminal side receives the indication information of the NZP CSI-RS in the semi-persistent transmission and the ZP CSI-RS in the non-periodic transmission configured by the network device, and demodulates the indication information according to the ZP CSI-RS in the non-periodic transmission.

Scene five, collision between the non-periodically transmitted NZP CSI-RS and the periodically transmitted ZP CSI-RS occurs

In this scenario, the NZP CSI-RS is aperiodic transmission, the ZP CSI-RS is periodic transmission, and since the priority of the aperiodic transmission is higher than the priority of the periodic transmission, when the NZP CSI-RS in the aperiodic transmission collides with the ZP CSI-RS in the periodic transmission, the network device configures and transmits the information on the collided resources according to the resource of the aperiodic NZP CSI-RS, and accordingly, the terminal side receives the indication information of the NZP CSI-RS in the aperiodic transmission and the ZP CSI-RS in the periodic transmission, which is configured by the network device, and demodulates the information according to the indication information of the NZP CSI-RS in the aperiodic transmission.

Scene six, collision between the non-periodically transmitted NZP CSI-RS and the semi-continuously transmitted ZP CSI-RS occurs

In this scenario, the NZP CSI-RS is aperiodic transmission, the ZP CSI-RS is semi-persistent transmission, and since the priority of the aperiodic transmission is higher than that of the semi-persistent transmission, when the NZP CSI-RS collides with the ZP CSI-RS, the network device configures and transmits the information on the collided resources according to the resource of the aperiodic NZP CSI-RS, and accordingly, the terminal side receives the indication information of the NZP CSI-RS configured by the network device and the ZP CSI-RS for semi-persistent transmission, and demodulates the information according to the indication information of the NZP CSI-RS for aperiodic transmission.

Scene seven, collision between the periodically transmitted NZP CSI-RS and the periodically transmitted ZP CSI-RS occurs

In the scene, both the NZP CSI-RS and the ZP CSI-RS are periodically transmitted, when the periodically transmitted NZP CSI-RS collides with the periodically transmitted ZP CSI-RS, the network equipment configures and transmits the resource according to the resource of the NZP CSI-RS on the collided resource because the priority of the NZP CSI-RS is higher than that of the ZP CSI-RS, and correspondingly, the terminal side receives the indication information of the periodically transmitted NZP CSI-RS and the ZP CSI-RS configured by the network equipment and demodulates the indication information according to the indication information of the NZP CSI-RS.

In the eight scene, collision occurs between the semi-continuous transmission NZP CSI-RS and the semi-continuous transmission ZP CSI-RS

In the scene, both the NZP CSI-RS and the ZP CSI-RS are semi-continuous transmission, when the NZP CSI-RS and the ZP CSI-RS collide, the network equipment configures and sends the collision resources according to the resources of the NZP CSI-RS because the priority of the NZP CSI-RS is higher than that of the ZP CSI-RS, and correspondingly, the terminal side receives indication information of the semi-continuous transmission NZP CSI-RS and the ZP CSI-RS configured by the network equipment and demodulates the collision resources according to the indication information of the NZP CSI-RS.

In the ninth scenario, collision occurs between the non-periodically transmitted NZP CSI-RS and the non-periodically transmitted ZP CSI-RS

In the scene, both the NZP CSI-RS and the ZP CSI-RS are non-periodic transmission, when the non-periodic transmission NZP CSI-RS collides with the ZP CSI-RS, because the priority of the NZP CSI-RS is higher than that of the ZP CSI-RS, the network equipment is configured and sent on the collided resources according to the resources of the NZP CSI-RS, and correspondingly, the terminal side receives the indication information of the non-periodic transmission NZP CSI-RS and the ZP CSI-RS configured by the network equipment and demodulates the indication information according to the indication information of the NZP CSI-RS.

In the channel state information reference signal transmission method of the embodiment of the invention, when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, a reference signal with higher priority is mapped to the overlapped transmission resources according to the periodic characteristic priority for transmission preferentially, and when the periodic characteristic priority is the same, the reference signal with higher priority is further mapped to the overlapped transmission resources according to the power characteristic priority for transmission, thereby avoiding the problem of resource scheduling conflict of the NZP CSI-RS and the ZP CSI-RS.

The present invention further provides a method for transmitting a channel state information interference measurement signal, which is applied to a network device side, as shown in fig. 3, and includes the following steps:

step 31: when transmission resources of a channel state information interference measurement signal CSI-IM and a zero-power channel state information reference signal ZP CSI-RS are overlapped, determining that the priority of the CSI-IM is higher than that of the ZP CSI-RS.

Step 32: and mapping the CSI-IM to the overlapped transmission resources for transmission.

Optionally, before the step of determining the priority of the CSI-IM and the ZP CSI-RS in step 31, the method further includes: and the terminal configures transmission resources of the CSI-IM and the ZP CSI-RS and generates corresponding indication information. And after the step of generating corresponding indication information, the method further comprises the following steps: and sending the indication information to the terminal.

In the above method, the CSI-IM is a zero-power CSI-RS (abbreviated as ZP CSI-RS for IM) for interference measurement IM, and the ZP CSI-RS may be a ZP CSI-RS (abbreviated as ZP CSI-RS for RM) for Rate Matching (RM), in which case, resource repetition of the CSI-IM and the ZP CSI-RS becomes resource overlap or collision of the ZP CSI-RS for IM and the ZP CSI-RS for RM. For the sake of brevity, no further description is provided herein. The above embodiments respectively describe in detail the channel state information reference signal transmission methods in different scenarios, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.

As shown in fig. 4, the network device 400 according to the embodiment of the present invention can determine the priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priorities when transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority to an overlapped transmission resource for transmission according to the periodic characteristic priorities; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same, then according to the power characteristic priority, mapping the higher power priority of the NZP CSI-RS and the ZP CSI-RS to the overlapped transmission resource for details of the transmission method, and achieving the same effect, the network device 400 specifically includes the following functional modules:

a first processing module 410, configured to determine priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap;

a first transmission module 420, configured to map, according to the periodic characteristic priority, one of the NZP CSI-RS and the ZP CSI-RS with a higher periodic characteristic priority onto an overlapped transmission resource for transmission if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different;

and a second transmission module 430, configured to map, according to the power characteristic priority, one of the NZP CSI-RS and the ZP CSI-RS with a higher power priority onto the overlapped transmission resource for transmission if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same.

Wherein the periodic characteristics include: periodic transmission, semi-persistent transmission, and aperiodic transmission; the periodic characteristic priorities include: the priority of the aperiodic transmission is higher than the priority of the semi-persistent transmission, which is higher than the priority of the periodic transmission.

Wherein the power characteristics include: non-zero power and zero power; the power characteristic priorities include: the priority of the NZP CSI-RS is higher than that of the ZP CSI-RS.

Wherein, the network device 400 further includes:

the configuration module is used for configuring transmission resources of the NZP CSI-RS and the ZP CSI-RS for the terminal and generating corresponding indication information;

and the sending module is used for sending the indication information to the terminal.

An embodiment of the present invention further provides a network device, as shown in fig. 5, where the network device 500 includes:

a processing module 510, configured to determine that a priority of a channel state information interference measurement signal CSI-IM is higher than that of a zero power channel state information reference signal ZP CSI-RS when transmission resources of the CSI-IM and the ZP CSI-RS overlap; and

and a transmission module 520, which maps the CSI-IM to the overlapped transmission resources for transmission.

Optionally, before the step of determining the priority of the CSI-IM and the ZP CSI-RS by the processing module 510, the method further includes: the processing module 510 configures the transmission resources of the CSI-IM and the ZP CSI-RS for a terminal and generates corresponding indication information, which is further sent to the terminal.

In the above method, the CSI-IM is a zero-power CSI-RS (abbreviated as ZP CSI-RS for IM) for interference measurement IM, and the ZP CSI-RS may be a ZP CSI-RS (abbreviated as ZP CSI-RS for RM) for rate matching (rate matching), in which case, resource repetition of the CSI-IM and the ZP CSI-RS becomes resource overlap or collision of the ZP CSI-RS for IM and the ZP CSI-RS for RM.

It should be noted that the embodiment of the network device corresponds to the embodiment of the method described above, and the embodiments of the method described above are all applicable to the embodiment of the network device, and for the sake of brevity, are not described again here.

It is worth pointing out that, in the network device according to the embodiment of the present invention, when transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap, a reference signal with a higher priority is preferentially mapped to the overlapped transmission resources according to the priority of the periodic characteristic for transmission, and when the priorities of the periodic characteristic are the same, the reference signal with a higher priority is further mapped to the overlapped transmission resources according to the priority of the power characteristic for transmission, thereby avoiding the problem of resource scheduling conflict between the NZP CSI-RS and the ZP CSI-RS.

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and the processor implements the steps in the channel state information reference signal transmission method as described above when executing the computer program. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the channel state information reference signal transmission method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 6, the network device 600 includes: antenna 61, radio frequency device 62, baseband device 63. The antenna 61 is connected to a radio frequency device 62. In the uplink direction, the rf device 62 receives information via the antenna 61 and sends the received information to the baseband device 63 for processing. In the downlink direction, the baseband device 63 processes information to be transmitted and transmits the information to the radio frequency device 62, and the radio frequency device 62 processes the received information and transmits the processed information through the antenna 61.

The above-mentioned band processing means may be located in the baseband means 63, and the method performed by the network device in the above embodiment may be implemented in the baseband means 63, where the baseband means 63 includes a processor 64 and a memory 65.

The baseband device 63 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 6, wherein one chip, for example, the processor 64, is connected to the memory 65 to call up the program in the memory 65 to perform the network device operation shown in the above method embodiment.

The baseband device 63 may further include a network interface 66 for exchanging information with the radio frequency device 62, such as a Common Public Radio Interface (CPRI).

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 65 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 65 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in the memory 65 and executable on the processor 64, the processor 64 calling the computer program in the memory 65 to execute the method performed by each module shown in fig. 4.

In particular, the computer program when invoked by the processor 64 is operable to perform: when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority;

if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority to an overlapped transmission resource for transmission according to the periodic characteristic priority;

and if the periodic characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, mapping the higher power priority of the NZP CSI-RS and the ZP CSI-RS to an overlapped transmission resource for transmission according to the power characteristic priority.

Wherein the periodic characteristics include: periodic transmission, semi-persistent transmission, and aperiodic transmission; the periodic characteristic priority includes: the priority of the aperiodic transmission is higher than the priority of the semi-persistent transmission, which is higher than the priority of the periodic transmission.

Before the step of determining the priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority, the method further includes:

allocating transmission resources of the NZP CSI-RS and the ZP CSI-RS for the terminal, and generating corresponding indication information;

and sending the indication information to the terminal.

In another embodiment, the processor 64 invokes a computer program in the memory 65 to perform the method performed by the modules shown in FIG. 5.

In particular, the computer program when invoked by the processor 64 is operable to perform: when transmission resources of a channel state information interference measurement signal CSI-IM and a zero-power channel state information reference signal ZP CSI-RS are overlapped, determining that the priority of the CSI-IM is higher than that of the ZP CSI-RS; and

In particular, the computer program when invoked by the processor 64 is operable to perform: and configuring transmission resources of the CSI-IM and the ZP CSI-RS for the terminal and generating corresponding indication information.

After the step of generating corresponding indication information, the method further comprises the following steps:

and sending the indication information to the terminal.

The network device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

According to the network equipment in the embodiment of the invention, when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, a reference signal with higher priority is mapped to the overlapped transmission resources according to the periodic characteristic priority for transmission, and when the periodic characteristic priorities are the same, the reference signal with higher priority is further mapped to the overlapped transmission resources according to the power characteristic priority for transmission, so that the problem of resource scheduling conflict of the NZP CSI-RS and the ZP CSI-RS is avoided.

The above embodiment describes the channel state information reference signal transmission method of the present invention from the network device side, and the following embodiment further describes the channel state information reference signal transmission method of the terminal side with reference to the accompanying drawings.

As shown in fig. 7, the method for transmitting csi-rs according to the embodiment of the present invention, applied to a terminal, includes the following steps:

step 71: when the transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are determined to be overlapped, the priorities of the NZP CSI-RS and the ZP CSI-RS are determined according to the periodic characteristic priority.

Wherein the periodic characteristics may include: periodic transmission, semi-persistent transmission, and aperiodic transmission. That is, the NZP CSI-RS and the ZP CSI-RS may be periodically transmitted, semi-continuously transmitted, or non-periodically transmitted. The periodic characteristic priorities include: the priority of the aperiodic transmission is higher than the priority of the semi-persistent transmission, which is higher than the priority of the periodic transmission. For example, the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the semi-continuously transmitted ZP CSI-RS, and the priority of the non-periodically transmitted ZP CSI-RS is higher than that of the semi-continuously transmitted NZP CSI-RS.

Step 72: and if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, detecting one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority on overlapped transmission resources according to the periodic characteristic priority.

When the cycle characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, the priorities of the NZP CSI-RS and the ZP CSI-RS can be determined according to the sequence of the cycle characteristic priorities. For example: the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the semi-continuously transmitted ZP CSI-RS, and at the moment, the terminal detects the NZP CSI-RS with higher priority on the overlapped transmission resources preferentially.

Step 73: and if the period characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, detecting the higher priority of the NZP CSI-RS and the ZP CSI-RS on the overlapped transmission resources according to the power characteristic priority.

When the cycle characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same, the priorities of the NZP CSI-RS and the ZP CSI-RS cannot be determined only according to the cycle characteristic priorities, and the priorities of the NZP CSI-RS and the ZP CSI-RS can be determined by further considering the power characteristic priorities. Wherein the power characteristics include: non-zero power and zero power; the power characteristic priorities include: the priority of the NZP CSI-RS is higher than that of the ZP CSI-RS. For example, the priority of the non-periodically transmitted NZP CSI-RS is higher than that of the non-periodically transmitted ZP CSI-RS, and then the terminal detects the NZP CSI-RS with higher priority on the overlapped transmission resources preferentially.

Preferably, before step 71, the method may further include: and receiving indication information sent by the network equipment, and determining whether transmission resources of the NZP CSI-RS and the ZP CSI-RS are overlapped or not according to the indication information. The indication information is used for indicating transmission resources of the NZP CSI-RS and the ZP CSI-RS. When the configuration information of the NZP CSI-RS and the ZP CSI-RS carried by the indication information indicates that: and when at least one RE scheduled for the NZP CSI-RS is overlapped with at least one RE scheduled for the ZP CSI-RS, the terminal determines that the transmission resources of the NZP CSI-RS and the ZP CSI-RS are overlapped.

In the channel state information reference signal transmission method of the embodiment of the invention, when the transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are determined to be overlapped, a terminal detects a reference signal with higher priority on the overlapped transmission resources according to the periodic characteristic priority, and when the periodic characteristic priority is the same, the terminal further detects the reference signal with higher priority on the overlapped transmission resources according to the power characteristic priority, thereby avoiding the resource scheduling conflict problem of the NZP CSI-RS and the ZP CSI-RS.

Still another method for transmitting a channel state information interference measurement signal according to the present invention, as shown in fig. 8, is applied to a terminal side, and includes:

step 81: when the transmission resources of a channel state information interference measurement signal CSI-IM and a zero-power channel state information reference signal ZP CSI-RS are determined to be overlapped, the priority of the CSI-IM is determined to be higher than that of the ZP CSI-RS; and

step 82: and mapping the CSI-IM to the overlapped transmission resources for transmission.

Optionally, before determining that transmission resources of the CSI-IM and the ZP CSI-RS overlap in step 81, the method further includes: receiving indication information sent by the network equipment, wherein the indication information is used for indicating transmission resources of the CSI-IM and the ZP CSI-RS; and determining whether transmission resources of the CSI-IM and the ZP CSI-RS are overlapped or not according to the indication information.

In the above method, the CSI-IM is a zero-power CSI-RS (abbreviated as ZP CSI-RS for IM) for interference measurement IM, and the ZP CSI-RS may be a ZP CSI-RS (abbreviated as ZP CSI-RS for RM) for rate matching (rate matching), in which case, resource repetition of the CSI-IM and the ZP CSI-RS becomes resource overlap or collision of the ZP CSI-RS for IM and the ZP CSI-RS for RM. For the sake of brevity, no further description is provided herein.

The above embodiments describe methods for transmitting csi reference signals in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 9, the terminal 900 according to the embodiment of the present invention can determine the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when determining that the transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, detecting one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority on the overlapped transmission resources according to the periodic characteristic priorities; if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same, detecting details of a method with a higher priority of the NZP CSI-RS and the ZP CSI-RS on the overlapped transmission resources according to the power characteristic priority, and achieving the same effect, where the terminal 900 specifically includes the following functional modules:

a second processing module 910, configured to determine priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when it is determined that transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap;

a first detecting module 920, configured to detect, according to the periodic characteristic priority, one of the NZP CSI-RS and the ZP CSI-RS with a higher periodic characteristic priority on the overlapped transmission resources if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different;

a second detecting module 930, configured to detect, according to the power characteristic priority, one of the NZP CSI-RS and the ZP CSI-RS with a higher priority on the overlapped transmission resources if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same.

Wherein, the terminal 900 further comprises:

the receiving module is used for receiving indication information sent by the network equipment, and the indication information is used for indicating transmission resources of the NZP CSI-RS and the ZP CSI-RS;

and the third processing module is used for determining whether the transmission resources of the NZP CSI-RS and the ZP CSI-RS are overlapped or not according to the indication information.

It is worth pointing out that, when determining that transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS overlap, the terminal of the embodiment of the present invention preferentially detects a reference signal with a higher priority on the overlapped transmission resources according to a periodic characteristic priority, and when the periodic characteristic priorities are the same, further detects a reference signal with a higher priority on the overlapped transmission resources according to a power characteristic priority, thereby avoiding a resource scheduling conflict problem of the NZP CSI-RS and the ZP CSI-RS.

The present invention further provides a terminal, as shown in fig. 10, the terminal 1000, including:

a processing module 1010, configured to determine that a priority of a channel state information interference measurement signal CSI-IM is higher than a priority of a zero power channel state information reference signal ZP CSI-RS when it is determined that transmission resources of the CSI-IM and the ZP CSI-RS overlap; and

a transmission module 1020, configured to map the CSI-IM to the overlapped transmission resources for transmission.

Optionally, before the processing module 1010 determines that transmission resources of the channel state information interference measurement signal CSI-IM and the zero power channel state information reference signal ZP CSI-RS overlap, the method further includes:

the processing module 1010 receives indication information sent by the network device, where the indication information is used to indicate transmission resources of the CSI-IM and the ZP CSI-RS; and determining whether transmission resources of the CSI-IM and the ZP CSI-RS are overlapped or not according to the indication information.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

To better achieve the above object, further, fig. 11 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 110 includes, but is not limited to: radio frequency unit 111, network module 112, audio output unit 113, input unit 114, sensor 115, display unit 116, user input unit 117, interface unit 118, memory 119, processor 1110, and power supply 1111. Those skilled in the art will appreciate that the terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The rf unit 111 is configured to receive and transmit data under the control of the processor 1110;

a processor 1110, configured to determine priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priorities when it is determined that transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS overlap;

if the period characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, detecting one of the NZP CSI-RS and the ZP CSI-RS with higher priority on the overlapped transmission resources according to the power characteristic priority;

when determining that transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, a terminal of the embodiment of the invention preferentially detects a reference signal with higher priority on the overlapped transmission resources according to the priority of the periodic characteristics, and further detects a reference signal with higher priority on the overlapped transmission resources according to the priority of the power characteristics when the priority of the periodic characteristics is the same, thereby avoiding the problem of resource scheduling conflict of the NZP CSI-RS and the ZP CSI-RS.

It should be understood that, in the embodiment of the present invention, the rf unit 111 may be used for receiving and sending signals during a message transmission or call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1110; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 111 may also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access via the network module 112, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 113 may convert audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into an audio signal and output as sound. Also, the audio output unit 113 may also provide audio output related to a specific function performed by the terminal 110 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.

The input unit 114 is used to receive an audio or video signal. The input Unit 114 may include a Graphics Processing Unit (GPU) 1141 and a microphone 1142, and the Graphics Processing Unit 1141 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 116. The image frames processed by the graphic processor 1141 may be stored in the memory 119 (or other storage medium) or transmitted via the radio frequency unit 111 or the network module 112. The microphone 1142 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 111 in case of the phone call mode.

The terminal 110 also includes at least one sensor 115, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 1161 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 1161 and/or backlight when the terminal 110 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 115 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 116 is used to display information input by the user or information provided to the user. The Display unit 116 may include a Display panel 1161, and the Display panel 1161 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 117 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 117 includes a touch panel 1171 and other input devices 1172. Touch panel 1171, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., user operations on or near touch panel 1171 using a finger, stylus, or any suitable object or accessory). Touch panel 1171 can include two portions, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1110, and receives and executes commands sent from the processor 1110. In addition, the touch panel 1171 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1171, the user input unit 117 may also include other input devices 1172. Specifically, the other input devices 1172 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein.

Further, touch panel 1171 can be overlaid on display panel 1161, and when touch panel 1171 detects a touch operation thereon or nearby, the touch operation can be transmitted to processor 1110 to determine the type of touch event, and then processor 1110 can provide a corresponding visual output on display panel 761 according to the type of touch event. Although in fig. 11, the touch panel 1171 and the display panel 1161 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1171 and the display panel 1161 may be integrated to implement the input and output functions of the terminal, and the implementation is not limited herein.

The interface unit 118 is an interface for connecting an external device to the terminal 110. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 118 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 110 or may be used to transmit data between the terminal 110 and the external device.

The memory 119 may be used to store software programs as well as various data. The memory 119 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 119 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1110 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 119 and calling data stored in the memory 119, thereby performing overall monitoring of the terminal. Processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The terminal 110 may further include a power supply 1111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 1111 may be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

In addition, the terminal 110 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1110, a memory 119, and a computer program stored in the memory 119 and capable of running on the processor 1110, where the computer program, when executed by the processor 1110, implements each process of the above-mentioned embodiment of the method for transmitting csi-rs, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned channel state information reference signal transmission method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A channel state information reference signal transmission method is applied to a network device side, and is characterized by comprising the following steps:

when transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the priority of the ZP CSI-RS according to the periodic characteristic priority;

if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, mapping one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority to an overlapped transmission resource for transmission according to the periodic characteristic priority; and

if the periodic characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, mapping the higher power priority of the NZP CSI-RS and the ZP CSI-RS to an overlapped transmission resource for transmission according to the power characteristic priority;

the periodic characteristic priority includes: the priority of the non-periodic transmission is higher than that of the semi-continuous transmission, and the priority of the semi-continuous transmission is higher than that of the periodic transmission;

the power characteristic priorities include: the priority of the NZP CSI-RS is higher than the priority of the ZP CSI-RS.

2. The method according to claim 1, wherein the step of determining the priorities of the NZP CSI-RS and the ZP CSI-RS according to a periodicity characteristic priority further comprises:

and configuring transmission resources of the NZP CSI-RS and the ZP CSI-RS for the terminal, and generating corresponding indication information.

3. The method according to claim 2, wherein the step of configuring the NZP CSI-RS and the ZP CSI-RS transmission resources for the terminal and generating the corresponding indication information further comprises:

and sending the indication information to the terminal.

4. A network device, comprising:

the system comprises a first processing module, a second processing module and a third processing module, wherein the first processing module is used for determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when the transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS are overlapped;

a first transmission module, configured to map, according to a periodic characteristic priority of the NZP CSI-RS and the ZP CSI-RS, a higher periodic characteristic priority of the NZP CSI-RS and the ZP CSI-RS to an overlapping transmission resource for transmission if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different; and

a second transmission module, configured to map, according to a power characteristic priority, a higher power priority of the NZP CSI-RS and the ZP CSI-RS onto an overlapped transmission resource for transmission if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same;

5. A network device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the channel state information reference signal transmission method according to any one of claims 1 to 3 when executing the computer program.

6. A method for transmitting a channel state information reference signal is applied to a terminal side, and is characterized by comprising the following steps:

when determining that transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS are overlapped, determining the priority of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority;

if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different, detecting one of the NZP CSI-RS and the ZP CSI-RS with higher periodic characteristic priority on overlapped transmission resources according to the periodic characteristic priority; and

if the periodic characteristic priority of the NZP CSI-RS is the same as that of the ZP CSI-RS, detecting the higher priority of the NZP CSI-RS and the ZP CSI-RS on overlapped transmission resources according to the power characteristic priority;

7. The method according to claim 6, wherein before determining that transmission resources of a non-zero power channel state information reference signal NZP CSI-RS and a zero power channel state information reference signal ZP CSI-RS overlap, the method further comprises:

receiving indication information sent by network equipment, wherein the indication information is used for indicating transmission resources of the NZP CSI-RS and the ZP CSI-RS; and

and determining whether transmission resources of the NZP CSI-RS and the ZP CSI-RS are overlapped or not according to the indication information.

8. A terminal, comprising:

the second processing module is used for determining the priorities of the NZP CSI-RS and the ZP CSI-RS according to the periodic characteristic priority when the transmission resources of the non-zero power channel state information reference signal NZP CSI-RS and the zero power channel state information reference signal ZP CSI-RS are determined to be overlapped;

a first detection module, configured to detect, according to a periodic characteristic priority of the NZP CSI-RS and the ZP CSI-RS, one of the NZP CSI-RS and the ZP CSI-RS that has a higher periodic characteristic priority on an overlapped transmission resource if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are different; and

a second detection module, configured to detect, according to a power characteristic priority, a higher priority of the NZP CSI-RS and the ZP CSI-RS on an overlapped transmission resource if the periodic characteristic priorities of the NZP CSI-RS and the ZP CSI-RS are the same;

9. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and being executable on the processor, the computer program, when executed by the processor, implementing the steps of the channel state information reference signal transmission method according to any of claims 6 to 7.