CN110138527B - Resource indicating and determining method and device - Google Patents

Abstract

The application discloses a resource indicating and determining method and device, which are used for meeting the requirements of different conditions in an NR-V2X system in a more flexible and controllable resource mapping mode. At a sending end, a resource indication method provided in an embodiment of the present application includes: a transmitting end determines transmission resources required to be occupied by signals required to be transmitted between the transmitting end and a receiving end; and the sending end sends a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end.

Description

Resource indicating and determining method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating and determining resources.

Background

The existing LTE-V2X resource mapping mode is a fixed mode, and for a Physical downlink Shared Channel (psch), there are 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols in each Resource Block (RB), where 4 OFDM symbols are occupied by a Demodulation Reference Signal (DMRS), and the remaining 10 OFDM symbols are used for data transmission, Automatic Gain Control (AGC), and Guard interval (Guard Period, GP).

Disclosure of Invention

The embodiment of the application provides a resource indicating and determining method and device, which are used for meeting the requirements of different conditions in an NR-V2X system in a more flexible and controllable resource mapping mode.

At a sending end, a resource indication method provided in an embodiment of the present application includes:

a transmitting end determines transmission resources required to be occupied by signals required to be transmitted between the transmitting end and a receiving end;

and the sending end sends a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end.

In the method provided by the embodiment of the present application, a transmitting end determines transmission resources that need to be occupied by signals transmitted between the transmitting end and a receiving end, and transmits a scheduling signaling for instructing the receiving end to determine the transmission resources to the receiving end, so that limitations of using a fixed resource mapping manner can be avoided, for example, different reference signals may be generated for different port numbers, and when the port numbers increase and reach a certain number, more OFDM symbols may need to be occupied, and therefore, in the method provided by the embodiment of the present application, by transmitting the scheduling signaling for instructing the receiving end to determine the transmission resources to the receiving end, a more flexible and controllable resource mapping manner is realized, and requirements of different situations in an NR-V2X system are met.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Thus, through the CSI-RS state, whether the current (subframe) needs to send the CSI-RS can be indicated; through the reference signal mapping indication, the resource mapping position of signals such as DMRS and/or CSI-RS can be indicated; the receiving end can be instructed to feed back information such as channel state information through the request of the feedback information; through the scheduling indication of the feedback information, when the receiving end is indicated to feed back the feedback information such as channel state information, the receiving end can be indicated to schedule information such as CQI, RI, PMI and the like; for the CSI scheduling signaling, if the three information of CQI, PMI and RI fed back are mapped to the data symbol in fixed positions, the method can reduce the overhead of the CSI scheduling signaling, and at the moment, only the fact whether to feed back the information needs to be respectively indicated, and the information of mapping positions and the like does not need to be indicated; in addition, the CSI information may also be in the form of non-fixed mapping positions, where information indicating specific resource mapping positions is required, but this mode is more flexible for signaling scheduling.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the sending end, the transmission resource of the reference signal specifically includes:

the sending end determines port information required to be occupied for transmitting the reference signal;

and the transmitting end determines the transmission resource of the reference signal according to the port information.

Optionally, the determining, by the sending end, the transmission resource of the reference signal according to the port information specifically includes:

and the sending end determines the transmission resource of the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula and according to the port information.

Therefore, by presetting the corresponding relation or formula at the sending end and the receiving end in advance, the receiving end can determine the information such as the resource mapping mode of the signal only by sending the port information occupied by the signal and the like in the scheduling signaling, the signaling overhead is saved, the resource mapping mode is more flexible and variable, and different requirements of different conditions are met.

Optionally, the signal that needs to be transmitted between the transmitting end and the receiving end and that is determined by the transmitting end further includes feedback information.

Therefore, for example, in some scenarios (for example, in a unicast mode) in the NR-V2X system, a receiving end is required to perform feedback of related information, and these feedback information also needs to perform resource mapping, but by determining transmission resources that need to be occupied by signals (including feedback information) to be transmitted between the receiving end and sending scheduling signaling for instructing the receiving end to determine the transmission resources (including the transmission resources that need to be occupied by the feedback information) to the receiving end in the embodiment of the present application, it may be avoided that a mapping position is not reserved for specific information such as these feedback information in a fixed resource mapping mode in the LTE-V2X system, which may result in a failure to support a feedback function.

Correspondingly, at a receiving end (the following beneficial effects correspond to the method at the transmitting end side, and are not described again in the following), the resource determining method provided in the embodiment of the present application includes:

a receiving end receives a scheduling signaling sent by a sending end;

and the receiving end determines transmission resources required to be occupied by the signals transmitted between the receiving end and the transmitting end according to the scheduling signaling.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the receiving end, a transmission resource that needs to be occupied by a signal to be transmitted between the receiving end and the transmitting end according to the scheduling signaling specifically includes:

the receiving end determines port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and the receiving end determines the transmission resource of the reference signal according to the port information.

Optionally, the determining, by the receiving end, the transmission resource of the reference signal according to the port information specifically includes:

and the receiving end determines the transmission resource of the reference signal by using the corresponding relation between the preset port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula according to the port information.

Optionally, the signal that the receiving end needs to transmit to the transmitting end further includes feedback information.

At a sending end, a resource indicating apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

determining transmission resources required to be occupied by signals transmitted between a transmitting end and a receiving end;

and sending a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the processor, transmission resources of the reference signal specifically includes:

determining port information required to be occupied by the transmitting end for transmitting the reference signal;

and determining the transmission resource of the reference signal according to the port information.

Optionally, determining the transmission resource of the reference signal according to the port information specifically includes:

and determining the transmission resource of the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula and according to the port information.

Optionally, the determined signal that the transmitting end needs to transmit to the receiving end further includes feedback information.

At a receiving end, a resource determining apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

receiving a scheduling signaling sent by a sending end;

and determining transmission resources required to be occupied by signals transmitted between a receiving end and the transmitting end according to the scheduling signaling.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the processor determines, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the receiving end and the transmitting end, and specifically includes:

determining port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and determining the transmission resource of the reference signal according to the port information.

Optionally, the determining the transmission resource of the reference signal according to the port information specifically includes:

and determining the transmission resource of the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula and according to the port information.

Optionally, the signal that the receiving end needs to transmit to the transmitting end further includes feedback information.

At a sending end, another resource indicating apparatus provided in this embodiment of the present application includes:

the determining unit is used for determining transmission resources which need to be occupied by signals transmitted between the transmitting end and the receiving end;

a sending unit, configured to send, to the receiving end, a scheduling signaling for instructing the receiving end to determine the transmission resource.

At a receiving end, another resource determining apparatus provided in an embodiment of the present application includes:

a receiving unit, configured to receive a scheduling signaling sent by a sending end;

and the determining unit is used for determining transmission resources required to be occupied by signals transmitted between the receiving end and the transmitting end according to the scheduling signaling.

Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic resource mapping diagram provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a resource mapping pattern (pattern)1 according to an embodiment of the present application;

fig. 3 is a schematic diagram of pattern2 provided in an embodiment of the present application;

fig. 4 is a schematic diagram of pattern3 provided in an embodiment of the present application;

fig. 5 is a schematic diagram of pattern4 provided in an embodiment of the present application;

fig. 6 is a schematic diagram of a resource mapping pattern of a single port (pattern 1) according to an embodiment of the present application;

fig. 7 is a schematic diagram of a resource mapping pattern of a single port (pattern 2) according to an embodiment of the present application;

fig. 8 is a schematic diagram of a dual port (pattern 1) resource mapping scheme according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a resource mapping mode of a dual port (pattern 2 of full mapping) according to an embodiment of the present application;

fig. 10 is a schematic diagram of a dual-port (non-full mapped pattern 2) resource mapping mode according to an embodiment of the present application;

fig. 11 is a schematic diagram of a resource mapping pattern of 4 ports (fully mapped pattern 2) according to an embodiment of the present application;

fig. 12 is a schematic diagram of a resource mapping pattern of 4 ports (non-full mapped pattern 2) according to an embodiment of the present application;

fig. 13 is a schematic diagram of a resource mapping pattern of 8 ports (pattern 2) according to an embodiment of the present application;

fig. 14 is a schematic resource mapping diagram according to embodiment 2 provided in this application;

fig. 15 is a schematic resource mapping diagram according to embodiment 3 provided in this application;

fig. 16 is a schematic view of another resource mapping according to embodiment 3 provided in this application;

fig. 17 is a schematic resource mapping diagram according to embodiment 4 provided in this application;

fig. 18 is a flowchart illustrating a resource indication method according to an embodiment of the present application;

fig. 19 is a flowchart illustrating a resource determining method according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a resource indication apparatus according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a resource determination apparatus according to an embodiment of the present application;

fig. 22 is a schematic structural diagram of another resource indication apparatus according to an embodiment of the present application;

fig. 23 is a schematic structural diagram of another resource determination apparatus according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a resource indicating and determining method and device, which are used for meeting the requirements of different conditions in an NR-V2X system in a more flexible and controllable resource mapping mode.

Due to the increase of the number of antenna ports in the NR-V2X stage, different mapping manners of Reference signals, such as DMRS/Channel State Information Reference signals (also referred to as sounding Reference signals) (CSI-RS), may be generated for different port numbers. When the number of ports increases to reach a certain number, more OFDM symbols may need to be occupied, so that the fixed resource mapping mode is obviously not applicable.

In addition, the NR-V2X needs the receiving end to perform feedback of related information in some scenarios (unicast mode), and the feedback information also needs to perform resource mapping, however, the resource mapping mode fixed in LTE-V2X does not reserve mapping positions for these specific information, and thus cannot support the feedback function.

The technical solution provided in the embodiment of the present application is to adopt a more flexible and controllable resource mapping manner to cope with different situations in NR-V2X, and select a specific region from a region mapped by original data to allocate to each specific information, such as DMRS, CSI-RS, Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), and positive Acknowledgement (ACK) \\ Negative Acknowledgement (NACK).

As shown in fig. 1, taking an RB including 14 OFDM symbols and 4 columns of DMRS symbols in the RB as an example for explanation, it should be noted that the feedback information here may be any information that needs to be fed back by the receiving end, and is not limited to channel state information, and here, only feedback CSI information is taken as an example; the resource mapping position of each piece of information may be, but is not limited to, the position in fig. 1, and may be more flexible and changeable, the specific mapping manner may be controlled by a scheduling signaling sent by the sending end to the receiving end, and the number of columns of the DMRS in one RB may also be appropriately adjusted according to specific scene conditions. When the scheduling signaling indicates that a certain specific information (e.g., a reference signal and/or feedback information) needs to be mapped, it is necessary to reserve in advance an appropriate resource for performing corresponding resource mapping, and the resource location should be skipped when mapping data.

It should be noted that the resource described in the embodiment of the present application may be a time domain resource, for example, an OFDM symbol resource. The sending end in the embodiment of the present application may be a network side device or a terminal, and the receiving end in the embodiment of the present application may also be a network side device or a terminal, that is, the sending end and the receiving end in the embodiment of the present application are not limited to a network side device or a terminal side device.

For the NR-V2X system, because the relative speed and the factors of different frequency bands need to be considered, in the embodiment of the present application, the density of the reference signal, that is, the number of OFDM symbols occupied by the reference signal, may be adaptively adjusted according to the change of specific scene parameters (e.g., the speed of the terminal moving and the carrier frequency). At present, the frequency bands mainly used for reference are 5.9GHz, 30GHz and 60GHz, and the relative speeds are 30km/h, 120km/h and 280km/h in a relatively typical mode; the high-frequency band has limited transmission distance and large frequency offset, so the method is suitable for scenes with low relative speed (30 km/h). Assuming that the relative speed of two User Equipments (UE) is 30km/h in the 60GHz band, the channel coherence time can be calculated to be about 253.8 us; assuming that the frequency band is 5.9GHz and the relative speed is 280km/h, which is a typical extreme case, the channel coherence time is about 276.5 us; the duration occupied by each OFDM symbol is about 60-70us, and the channel estimation accuracy can be ensured by spacing 4 symbols between two columns of DMRSs at most; in summary, only 4 columns of DMRSs are required in each RB at most to ensure channel estimation performance in various different scenarios. In practical application, flexible DMRS density can be configured according to specific situations, which not only can ensure accuracy of channel estimation, but also can reduce overhead of data occupied by reference signals.

The scheduling signaling provided in the embodiment of the present application may indicate that different reference signal mapping manners are required for different port numbers in NR-V2X, and further, may indicate that related content such as feedback information of a receiving end is required in a specific transmission mode.

For example, taking feedback of channel state information as an example, the scheduling signaling provided in this embodiment may include one or more of the following information fields:

1) CSI-RS state signaling: the method is used for indicating whether the current subframe needs to send the CSI-RS or not;

2) reference signal mapping indication signaling: for example, the resource mapping location of the DMRS and/or CSI-RS is indicated according to the number of ports. The CSI-RS resource mapping position information is only valid in the CSI-RS state signaling opening state (namely, under the condition that the CSI-RS is required to be sent);

3) CSI-request signaling (i.e. request for feedback information): the system is used for indicating the receiving end to feed back the channel state information;

4) channel State Information (CSI) scheduling signaling (i.e., scheduling indication of feedback Information): the method is used for indicating how to schedule CQI, RI, PMI and the like when a receiving end feeds back channel state information; for the CSI scheduling signaling, if the three information of CQI, PMI and RI fed back are mapped to the data symbol in fixed positions, the overhead of the CSI scheduling signaling can be reduced by the method, and at the moment, whether the information is fed back or not is only required to be respectively indicated, and the information such as the mapping position is not required to be indicated; in addition, the CSI scheduling signaling may also adopt a non-fixed mapping location manner, where information indicating a specific resource mapping location is required, but this mode is more flexible for signaling scheduling.

In addition, the ports described in the embodiments of the present application are all referred to as antenna ports (ports).

An illustration of several specific embodiments is given below.

Example 1:

the schematic block diagram in embodiment 1 is illustrated by taking an example that one RB includes 3 columns of DMRSs, and this embodiment mainly illustrates that reference signals adopt different resource mapping modes and situations that may occur due to the increased number of NR-V2X antenna ports, where DMRSs are mapped to OFDM symbols in a comb-like manner, and CSI-RSs are mapped to DMRS vacant resource positions in an interleaved manner. The number of ports occupied by the CSI-RS is greater than or equal to the number of DMRS ports. In this embodiment, the maximum number of supported DMRS ports is taken as 8 as an example.

In addition, for CSI-RS, it needs to be ensured that the density of resource mapping maps at least one RE per RB for each PORT; because the number of ports occupied by the CSI-RS is usually more than that occupied by the DMRS, a mapping mode that the CSI-RS is sequentially mapped to vacant resources except for the resources occupied by the DMRS is adopted until the requirement of the number of the ports occupied by the CSI-RS is met, and the number of the ports occupied by the CSI-RS can be selected to be the power number of 2 in order to facilitate the control of the mapping position of the CSI-RS resource;

for the remaining vacant part of resources of the DMRS comb structure, data can be selected to be transmitted, or interference elimination is carried out by using the resources to improve the performance of a receiver;

the CSI-RS can adopt a periodic transmission mode or an aperiodic transmission mode;

for the case that the CSI-RS resource does not need to be mapped, two modes of pattern3 and pattern4 are given to support fallback, and the fixed pattern can be used to save the overhead of scheduling signaling.

The pattern, that is, the resource mapping mode or resource mapping manner of the signal transmitted between the transmitting end and the receiving end in each RB in the embodiment of the application, represents the transmission resource that the signal transmitted between the transmitting end and the receiving end needs to occupy.

The various patterns provided in the embodiment of the present application may be preset in the sending end and the receiving end in a protocol agreed manner, or may be set by the network side and notified to the terminal, and the specific setting manner is not limited.

Or, in this embodiment of the present application, instead of presetting various patterns in the sending end and the receiving end, one or more calculation formulas may be preset, and the transmission resource that needs to be occupied by the signal transmitted between the sending end and the receiving end is determined by combining the information carried in the scheduling signaling and the calculation formulas. The specific calculation formula is not limited in the embodiment of the present application, and may be determined according to actual needs. In the embodiment of the application, a scheduling signaling for instructing a receiving end to determine transmission resources that need to be occupied by signals transmitted between the transmitting end and the receiving end is mainly sent to the receiving end by the transmitting end, so as to realize flexible indication of resource mapping.

The above scheme does not represent the final NR-V2X reference signal mapping scheme, and the scheme is illustrated only by way of example. The specific pattern provided by the embodiment of the application is introduced as follows:

pattern 1: referring to fig. 2, the number of OFDM symbols occupied by each column of DMRSs is 1, that is, DMRSs occupying 2 ports are maximally supported by using 2-FD-OCC (adjacent frequency domain RE). The CSI-RS uses 2-FD-OCC (adjacent frequency domain RE) and can support channel measurement occupying more than 2 ports.

pattern 2: referring to fig. 3, the number of OFDM symbols occupied by each column of DMRSs is 2, and DMRSs occupying 8 ports are maximally supported by using a Combination (comb) + Cyclic Shifts (CS) 2 mode (or 2-FD-OCC) + TD-OCC ({1, 1} and {1, -1 }); the CSI can support channel measurement of more than 8 ports by adopting 2-TD-OCC (adjacent time domain RE); for the channel measurement situation of more than 8 ports, channel measurement of 16 ports can be supported only by continuously mapping all the void resources in the resources occupied by the second column of DMRS to CSI-RS signals; TD-OCC ({1, 1} and {1, -1}) indicates that time domain orthogonal cover code (TD-OCC) multiplexing is adopted between two ports, and {1,1} {1, -1} are multiplexing coefficients of the two ports, respectively.

Wherein, comb is frequency domain multiplexing, for example, the multiplexing relationship of comb2 is between ports 0 and 2. CS2 multiplexes sequences between ports by cyclic shifts, for example, the multiplexing relationship between ports 0 and 1 is CS 2.

The TD-OCC is time domain Orthogonal Cover Code (OCC) multiplexing.

Pattern 3: referring to fig. 4, in some scenarios, existing V2X transmission modes such as single port or transmit diversity (TxD) are still used, and at this time, only DMRS needs to be transmitted, and CSI-RS does not need to be transmitted, so that the existing DMRS resource mapping mode is reserved, the number of DMRS symbols is 1, and the maximum supported number of occupied ports is 2 by using a CS 2;

referring to fig. 5, in order to cope with an open-loop transmission mode in which the number of ports is large and channel state information does not need to be fed back, the number of DMRS symbols is 2, and a comb + CS2 (or 2-FD-OCC) + TD-OCC ({1, 1} and {1, -1}) is used to support the DMRS occupying 8 ports to the maximum (corresponding to the fact that the mapping of CSI-RS is removed by the pattern2, and all resources are used to map to DMRS sequences).

The embodiments listed in the embodiments of the present application all exemplify that there are 3 columns of reference signals in one RB, and the actual situation should be flexibly configurable; examples of 1 port, 2 ports, 4 ports, and 8 ports are given.

In this embodiment, mainly illustrating two possible mapping methods of the pattern1 and 2 in NR-V2X, a receiving end may determine the number of antenna ports and the corresponding resource mapping mode by using a scheduling signaling for reference signal resource mapping, that is, determine a resource mapping scheme of a reference signal (i.e., determine transmission resources of the reference signal).

The following illustrates different resource mapping patterns (patterns) corresponding to different numbers of antenna ports occupied by signals (taking reference signals as an example).

When a signal occupies 1 antenna port (1-port):

when the pattern1 is adopted, a specific pattern is as shown in fig. 6, the number of OFDM symbols occupied by each column of DMRSs is 1, where the DMRSs use a comb structure, and the CSI-RS is inserted in the vacant positions of the DMRSs;

when the pattern2 is used, a specific pattern is as shown in fig. 7, and the number of OFDM symbols occupied by each column of DMRSs is 2.

When a signal occupies 2 antenna ports (2-port):

when the pattern1 is adopted, a specific pattern is as shown in fig. 8, the number of OFDM symbols occupied by each column of DMRSs is 1, the DMRSs adopt 2-FD-OCC, and the CSI-RS also adopt 2-FD-OCC.

When the pattern2 is adopted, two options are available, the first is a resource mapping manner of the DMRS full of the pattern2, that is, all resource mapping positions in the pattern2 are occupied by the DMRS, and a specific pattern is shown in fig. 9.

The second one is a resource mapping manner using a DMRS that is not full of pattern2, that is, all resource mapping positions in the pattern2 are not full of the DMRS, and a specific pattern is shown in fig. 10.

When a signal occupies 4 antenna ports (4-port):

at this time, pattern1 is no longer applicable, and only pattern2 can be used, and DMRSs with two symbol numbers are used, the first is to use a resource mapping pattern with full pattern, and a specific pattern is as shown in fig. 11.

When a resource mapping manner of a non-full pattern is adopted, a specific pattern is as shown in fig. 12.

When a signal occupies 8 antenna ports (8-port):

for the DMRS situation occupying 8 ports, because the number of ports occupied by the DMRS is already large, only pattern2 can be selected to perform a resource mapping mode of a full pattern, and a specific pattern is shown in fig. 13.

Example 2:

referring to fig. 14, in case of adopting a closed-loop communication mode (requiring receiver feedback information) between a transmitting end and a receiving end, a CSI-RS needs to be transmitted, so in scheduling Signaling (SA):

the CSI-RS state signaling is in an opening state to indicate that the scheduling signaling carries the CSI-RS at the moment;

the reference signal mapping indication signaling has validity for the mapping position information of the DMRS and the CSI-RS, at this time, before DATA (DATA) mapping is performed, corresponding resource positions should be reserved for the DMRS and the CSI-RS, and then, the receiving end may obtain the number of specifically used antenna ports and the resource mapping mode according to the reference signal mapping indication signaling, which is the same as the method in embodiment 1.

The CSI-request signaling is in an effective state and used for indicating that a receiving end needs to feed back channel state information;

the CSI scheduling signaling should be in an inactive state, where no feedback channel information is needed.

Example 3:

for any transmission mode adopted between the sending end and the receiving end, after the sending end determines the transmission mode, the sending end can be divided into two transmission modes based on a codebook and a non-codebook, and the selection of precoding matrixes of the two transmission modes is determined by measuring channel information through CSI-RS. The codebook-based precoding matrix is selected after the CQI is fed back by the receiving end, and the non-codebook-based precoding matrix is autonomously selected after the transmitting end measures the channel state information by using the received CSI-RS.

When codebook-based precoding (precoding) is performed, it is necessary to notify the receiving end of specific precoding codebook information. The resource mapping scheme of the specific reference signal is the same as that in embodiment 1, see fig. 15.

The CSI-request signaling in the scheduling signaling is in an effective state and used for indicating that a receiving end needs to feed back channel state information;

the CSI scheduling signaling in the scheduling Signaling (SA) is in an invalid state, but the scheduling signaling of the PMI is in an open state and is used for indicating a receiving end to decode the information of a precoding matrix which needs to be used; the data should reserve a section of resources for sending the PMI information in the mapping process.

When precoding based on a non-codebook is performed, since DMRS performs the same precoding as data, a receiving end can directly perform decoding; the resource mapping scheme of the specific reference signal is the same as that in embodiment 1, see fig. 16.

In the scheduling Signaling (SA) at this time:

the CSI-RS state signaling is closed;

only the resource mapping position information of the DMRS is valid in the reference signal mapping indication signaling, and a specific resource mapping scheme of the DMRS is the same as that in embodiment 1.

The CSI-request signaling is in an effective state and is used for indicating that a receiving end needs to feed back channel state information;

the RI part in the CSI scheduling signaling is in an active state, and is used to indicate a specifically used layer number, and also an appropriate resource location should be reserved for it in the data mapping process (specifically according to actual needs).

Example 4:

for the condition that a sending end needs to feed back CQI, PMI and/or RI, when the receiving end determines that CSI needs to be fed back to the sending end according to CSI-request signaling in received scheduling signaling, the sending end does not need to send CSI-RS at the moment, but needs to carry information of CQI, PMI and/or RI; thus, in scheduling signaling:

the CSI-RS state signaling is closed;

only the mapping position information of the DMRS is valid in the reference signal mapping indication signaling; the resource mapping scheme of the specific DMRS is the same as in example 1, see fig. 17.

The CSI-request signaling is in an invalid state;

the CSI scheduling signaling is in an open state, and if the three information of the CQI, the PMI and the RI which are fed back are mapped to a data symbol by fixed positions, the CSI scheduling signaling only needs to be in the open state; when the non-fixed mapping position mode is adopted, the resource mapping position information of specific CQI, PMI and RI needs to be indicated at this time.

In summary, at the sending end, referring to fig. 18, a resource indication method provided in the embodiment of the present application includes:

s101, a transmitting end determines transmission resources required to be occupied by signals required to be transmitted between the transmitting end and a receiving end;

s102, the sending end sends a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end.

In the method provided by the embodiment of the present application, a transmitting end determines transmission resources that need to be occupied by signals transmitted between the transmitting end and a receiving end, and transmits a scheduling signaling for instructing the receiving end to determine the transmission resources to the receiving end, so that limitations of using a fixed resource mapping manner can be avoided, for example, different reference signals may be generated for different port numbers, and when the port numbers increase and reach a certain number, more OFDM symbols may need to be occupied, and therefore, in the method provided by the embodiment of the present application, by transmitting the scheduling signaling for instructing the receiving end to determine the transmission resources to the receiving end, a more flexible and controllable resource mapping manner is realized, and requirements of different situations in an NR-V2X system are met.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Thus, by the CSI-RS state, it can be indicated whether the current (subframe) needs to transmit CSI-RS; through the reference signal mapping indication, the resource mapping position of signals such as DMRS and/or CSI-RS can be indicated; the receiving end can be instructed to feed back information such as channel state information through the request of the feedback information; through the scheduling indication of the feedback information, when the receiving end is indicated to feed back the feedback information such as channel state information, the receiving end can be indicated to schedule information such as CQI, RI, PMI and the like; for the CSI scheduling signaling, if the three information of CQI, PMI and RI fed back are mapped to the data symbol in fixed positions, the method can reduce the overhead of the CSI scheduling signaling, and at the moment, only the fact whether to feed back the information needs to be respectively indicated, and the information of mapping positions and the like does not need to be indicated; in addition, the CSI scheduling signaling may also adopt a non-fixed mapping location manner, where information indicating a specific resource mapping location is required, but this mode is more flexible for signaling scheduling.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the sending end, the transmission resource of the reference signal specifically includes:

the sending end determines port information required to be occupied for transmitting the reference signal;

and the transmitting end determines the transmission resource of the reference signal according to the port information.

Optionally, the determining, by the sending end, the transmission resource of the reference signal according to the port information specifically includes:

and the sending end determines the transmission resource of the reference signal by using the corresponding relation between the preset port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula according to the port information.

Therefore, by presetting the corresponding relation or formula at the sending end and the receiving end in advance, the receiving end can determine the information such as the resource mapping mode of the signal only by sending the port information occupied by the signal and the like in the scheduling signaling, the signaling overhead is saved, the resource mapping mode is more flexible and variable, and different requirements of different conditions are met.

Optionally, the signal that needs to be transmitted between the transmitting end and the receiving end and that is determined by the transmitting end further includes feedback information.

Therefore, for example, in some scenarios (for example, in a unicast mode) in the NR-V2X system, a receiving end is required to perform feedback of related information, and these feedback information also needs to perform resource mapping, but by determining transmission resources that need to be occupied by signals (including feedback information) to be transmitted between the receiving end and sending scheduling signaling for instructing the receiving end to determine the transmission resources (including the transmission resources that need to be occupied by the feedback information) to the receiving end in the embodiment of the present application, it may be avoided that a mapping position is not reserved for specific information such as these feedback information in a fixed resource mapping mode in the LTE-V2X system, which may result in a failure to support a feedback function.

Accordingly, at the receiving end (the following beneficial effects correspond to the method at the transmitting end side, and are not described again later), referring to fig. 19, a resource determining method provided in the embodiment of the present application includes:

s201, a receiving end receives a scheduling signaling sent by a sending end;

s202, the receiving end determines transmission resources required to be occupied by signals needing to be transmitted between the receiving end and the sending end according to the scheduling signaling.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the receiving end, a transmission resource that needs to be occupied by a signal to be transmitted between the receiving end and the transmitting end according to the scheduling signaling specifically includes:

the receiving end determines port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and the receiving end determines the transmission resource of the reference signal according to the port information.

Optionally, the determining, by the receiving end, the transmission resource of the reference signal according to the port information specifically includes:

and the receiving end determines the transmission resource of the reference signal by using the corresponding relation between the preset port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula according to the port information.

Optionally, the signal that the receiving end needs to transmit to the transmitting end further includes feedback information.

At a sending end, referring to fig. 20, a resource indicating apparatus provided in an embodiment of the present application includes:

a memory 520 for storing program instructions;

a processor 500 for calling the program instructions stored in the memory, and executing, according to the obtained program:

determining transmission resources required to be occupied by signals transmitted between a transmitting end and a receiving end;

transmitting, by the transceiver 510, scheduling signaling for instructing the receiving end to determine the transmission resources to the receiving end.

Wherein the transceiver 510 is not a necessary setting for the resource indicating means.

The resource indicating apparatus may be a network side device, and certainly may also be a terminal device.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the determining, by the processor, the transmission resource of the reference signal specifically includes:

determining port information which needs to be occupied by the transmitting end for transmitting the reference signal;

and determining the transmission resource of the reference signal according to the port information.

Optionally, determining the transmission resource of the reference signal according to the port information specifically includes:

and determining the transmission resource of the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula and according to the port information.

Optionally, the determined signal that the transmitting end needs to transmit to the receiving end further includes feedback information.

A transceiver 510 for receiving and transmitting data under the control of the processor 500.

Where in fig. 20, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

At a receiving end, referring to fig. 21, a resource determining apparatus provided in an embodiment of the present application includes:

a memory 620 for storing program instructions;

a processor 600, configured to call the program instructions stored in the memory, and execute, according to the obtained program:

receiving, by the transceiver 610, a scheduling signaling sent by a sending end;

and determining transmission resources required to be occupied by signals transmitted between a receiving end and the transmitting end according to the scheduling signaling.

Wherein the transceiver 610 is not a necessary setting of the resource determining means.

The resource determining apparatus may be a terminal device or a network side device.

Optionally, the signal includes a reference signal, and the scheduling signaling includes one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

Optionally, the feedback information includes one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

Optionally, the reference signal mapping indication includes: port information occupied by the reference signal, wherein the port information includes: port number and/or port number.

Optionally, the processor 600 determines, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the receiving end and the transmitting end, and specifically includes:

determining port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and determining the transmission resource of the reference signal according to the port information.

Optionally, the determining the transmission resource of the reference signal according to the port information specifically includes:

and determining the transmission resource of the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by using a preset formula and according to the port information.

Optionally, the signal that the receiving end needs to transmit to the transmitting end further includes feedback information.

A transceiver 610 for receiving and transmitting data under the control of the processor 600.

In fig. 21, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 600 and various circuits of memory represented by memory 620 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 600 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

At a transmitting end, referring to fig. 22, another resource indicating apparatus provided in an embodiment of the present application includes:

a determining unit 11, configured to determine a transmission resource that needs to be occupied by a signal that needs to be transmitted between a sending end and a receiving end;

a sending unit 12, configured to send, to the receiving end, a scheduling signaling for instructing the receiving end to determine the transmission resource.

At the receiving end, referring to fig. 23, another resource determining apparatus provided in an embodiment of the present application includes:

a receiving unit 21, configured to receive a scheduling signaling sent by a sending end;

a determining unit 22, configured to determine, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the receiving end and the transmitting end.

Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

Any of the methods provided by the embodiments of the present application may be applied to a terminal device, and may also be applied to a network device. Moreover, any of the apparatuses provided in the embodiments of the present application may be a terminal device, and may also be applied to a network device.

The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in a 5G system. The embodiments in this aspect are not limited.

The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

In summary, the technical solution provided by the embodiment of the present application breaks through the fixed resource mapping mode of the original LTE-V2X, and solves the problems that the number of NR-V2X ports is increased and the receiving end needs to feed back information by using a flexible and variable resource mapping mode. According to the embodiment of the application, different resource mapping modes can be used according to a specific NR-V2X scene, and different reference signal mapping modes corresponding to different antenna port numbers can be dealt with; when the receiving end needs to feed back the information, the corresponding resource mapping can be performed according to the specific needed information. The specific mapping mode utilizes the scheduling Signaling (SA) provided by the embodiment of the application to perform scheduling, and during actual use, correct and appropriate resource mapping indication can be performed according to the state of each signaling in the SA.

For example, since NR-V2X no longer refers to a scenario in which LTE-V2X mainly aims at broadcast communication, unicast and multicast communication situations may occur, and the number of antenna ports is increased accordingly, the original fixed resource mapping mode of LTE-V2X is no longer applicable to V2X in the NR phase; the embodiment of the application adds the CSI-RS state signaling, the reference signal mapping indication signaling, the CSI-request and the CSI scheduling signaling on the basis of the original LTE-V2X scheduling signaling, and then performs corresponding resource mapping control through the scheduling signaling, thereby providing a more flexible and variable resource mapping mode for solving the problems of increasing the number of antenna ports, feeding back CQI and the like and simultaneously improving the utilization rate of resources.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (27)

1. A method for resource indication, the method comprising:

a transmitting end determines transmission resources required to be occupied by signals transmitted between the transmitting end and a receiving end;

the sending end sends a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end;

the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

the method for determining the transmission resources required to be occupied by the signals transmitted between the transmitting end and the receiving end specifically comprises the following steps:

the sending end determines port information required to be occupied for transmitting the reference signal;

and the sending end determines the transmission resources required to be occupied by the reference signals according to the port information.

2. The method of claim 1, wherein the scheduling signaling further comprises one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a request for feedback information;

scheduling indication of feedback information.

3. The method of claim 2, wherein the feedback information comprises one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

4. The method of claim 1, wherein the port information comprises: port number and/or port number.

5. The method according to claim 1, wherein the determining, by the sending end, the transmission resource that needs to be occupied by the reference signal according to the port information specifically includes:

and the sending end determines the transmission resource which needs to be occupied by the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource which needs to be occupied by the reference signal, or by using a preset formula and the port information.

6. The method according to any of claims 2 to 5, wherein the signal transmitted between the sender and the receiver further comprises feedback information.

7. A method for resource determination, the method comprising:

a receiving end receives a scheduling signaling sent by a sending end;

the receiving end determines transmission resources required to be occupied by signals transmitted between the receiving end and the transmitting end according to the scheduling signaling;

wherein the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

the receiving end determines, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the receiving end and the transmitting end, and specifically includes:

the receiving end determines port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and the receiving end determines the transmission resources required to be occupied by the reference signals according to the port information.

8. The method of claim 7, wherein the scheduling signaling further comprises one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a request for feedback information;

scheduling indication of feedback information.

9. The method of claim 8, wherein the feedback information comprises one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

10. The method of claim 8, wherein the port information comprises: port number and/or port number.

11. The method according to claim 7, wherein the determining, by the receiving end, the transmission resource that needs to be occupied by the reference signal according to the port information specifically includes:

and the receiving end determines the transmission resource required to be occupied by the reference signal by utilizing the preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal or by utilizing a preset formula and the port information.

12. The method according to any one of claims 7 to 11, wherein the signal transmitted between the receiving end and the transmitting end further comprises feedback information.

13. An apparatus for resource indication, the apparatus comprising:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

determining transmission resources required to be occupied by signals transmitted between the receiving end and the receiving end;

sending a scheduling signaling for indicating the receiving end to determine the transmission resource to the receiving end;

wherein the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

the determining transmission resources that need to be occupied by signals transmitted between the receiving end and the receiving end specifically includes:

determining port information required to be occupied for transmitting the reference signal;

and determining the transmission resources required to be occupied by the reference signals according to the port information.

14. The apparatus of claim 13, wherein the scheduling signaling further comprises one or a combination of the following:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

15. The apparatus of claim 14, wherein the feedback information comprises one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

16. The apparatus of claim 14, wherein the port information comprises: port number and/or port number.

17. The apparatus of claim 13, wherein determining the transmission resource that needs to be occupied by the reference signal according to the port information specifically includes:

and determining the transmission resource required to be occupied by the reference signal by using a preset corresponding relation between the port information occupied by the reference signal and the transmission resource of the reference signal, or by using a preset formula and the port information.

18. The apparatus according to any of claims 13 to 17, wherein the determined signal transmitted to and from the receiving end further comprises feedback information.

19. An apparatus for resource determination, the apparatus comprising:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

receiving a scheduling signaling sent by a sending end;

determining transmission resources required to be occupied by signals transmitted between the sending terminal and the sending terminal according to the scheduling signaling;

wherein the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

the determining, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the transmitter and the transmitter includes:

determining port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and determining the transmission resources required to be occupied by the reference signals according to the port information.

20. The apparatus of claim 19, wherein the scheduling signaling further comprises one or a combination of:

channel state information reference signal, CSI-RS, state;

a reference signal mapping indication;

a request for feedback information;

scheduling indication of feedback information.

21. The apparatus of claim 20, wherein the feedback information comprises one or a combination of the following information: channel quality indication CQI, precoding matrix indication PMI, rank indication RI.

22. The apparatus of claim 21, wherein the port information comprises: port number and/or port number.

23. The apparatus of claim 19, wherein the determining, according to the port information, transmission resources that need to be occupied by the reference signal specifically includes:

and determining the transmission resource required to be occupied by the reference signal by utilizing a preset corresponding relation between the port information occupied by the reference signal and the transmission resource required to be occupied by the reference signal, or by utilizing a preset formula and the port information.

24. The apparatus according to any of claims 19 to 23, wherein the signal transmitted with the transmitting end further comprises feedback information.

25. An apparatus for resource indication, the apparatus comprising:

the determining unit is used for determining transmission resources required to be occupied by signals transmitted between the receiving end and the receiving end;

a sending unit, configured to send, to the receiving end, a scheduling signaling for instructing the receiving end to determine the transmission resource;

wherein the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

determining transmission resources required to be occupied by signals transmitted between the receiving end and the receiving end, specifically comprising:

determining port information required to be occupied for transmitting the reference signal;

and determining the transmission resources required to be occupied by the reference signals according to the port information.

26. An apparatus for resource determination, the apparatus comprising:

a receiving unit, configured to receive a scheduling signaling sent by a sending end;

a determining unit, configured to determine, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the transmitting end and the receiving end;

wherein the signal comprises a reference signal, the scheduling signaling comprises a reference signal mapping indication, and the reference signal mapping indication comprises port information occupied by the reference signal;

the determining, according to the scheduling signaling, a transmission resource that needs to be occupied by a signal transmitted between the transmitter and the transmitter includes:

determining port information required to be occupied for transmitting the reference signal according to the scheduling signaling;

and determining the transmission resources required to be occupied by the reference signals according to the port information.

27. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 12.

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