CN111107636A

CN111107636A - Channel state information measuring method, terminal and computer storage medium

Info

Publication number: CN111107636A
Application number: CN201811341476.6A
Authority: CN
Inventors: 鲁智; 潘学明; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2020-05-05

Abstract

The invention discloses a channel state information measuring method, a terminal and a computer storage medium. The channel state information measuring method applied to the first communication equipment comprises the following steps: sending resource configuration information to the second communication device; transmitting the DCI to the second communication device; sending a channel measurement RS and an interference measurement RS to second communication equipment according to the DCI; a CSI measurement result transmitted by the second communication device is acquired. The channel state information measuring method applied to the second communication equipment comprises the following steps: acquiring resource configuration information and DCI transmitted by a first communication device; acquiring a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI; determining a CSI measurement result according to the channel measurement RS and the interference measurement RS; and transmitting the CSI measurement result to the first communication device. According to the embodiment of the invention, the accuracy requirement of CSI measurement can be met.

Description

Channel state information measuring method, terminal and computer storage medium

Technical Field

The present invention belongs to the field of communication technologies, and in particular, to a method, an apparatus, a terminal, and a computer storage medium for measuring channel state information.

Background

The future fifth generation mobile communication (5G) system needs to accommodate more diverse scenarios and business requirements than The past mobile communication systems. For example, the main application scenarios of the 5G system include services such as enhanced Mobile Broadband (eMBB), Massive internet of things (mtc), ultra reliable and Low Latency Communication (urrllc), and the services provide requirements for the 5G system such as high reliability, Low Latency, large bandwidth, and wide coverage.

Taking the urrllc service as an example, the urrllc service has two service models, namely a periodic service model and a burst service model. Due to the high reliability requirement, the speed of the terminal is not high in a typical application scenario, so that the Channel State Information (CSI) measurement is hardly affected by the channel measurement RS in a normal case because the Reference Signal (RS) is not changed frequently. When the interference situation of the terminal changes rapidly due to the interference change between the cells, for example, the interference situation changes from slot to slot, the interference measurement RS may send a drastic change, thereby affecting the accuracy of CSI measurement. Therefore, the interference measurement RS becomes a main factor affecting CSI measurement.

However, the measurement method for measuring the CSI generally uses a periodic interference measurement RS for measurement, and cannot meet the measurement requirement when the interference measurement RS changes dramatically.

Disclosure of Invention

The invention provides a channel state information measuring method, a channel state information measuring device, a channel state information measuring terminal and a computer storage medium, which are used for solving the measuring requirement when interference measurement RS is changed violently.

In one aspect, an embodiment of the present invention provides a channel state information measurement method, applied to a first communication device, where the method includes:

sending resource configuration information to the second communication device;

transmitting the DCI to the second communication device;

sending a channel measurement RS and an interference measurement RS to second communication equipment according to the DCI;

a CSI measurement result transmitted by the second communication device is acquired.

In another aspect, an embodiment of the present invention provides a channel state information measurement method, applied to a second communication device, where the method includes:

acquiring resource configuration information and DCI transmitted by a first communication device;

acquiring a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI;

determining a CSI measurement result according to the channel measurement RS and the interference measurement RS;

and transmitting the CSI measurement result to the first communication device.

In another aspect, an embodiment of the present invention provides a channel state information measurement apparatus, where the apparatus includes:

a first transmitting unit configured to transmit the resource configuration information and the DCI to the second communication device;

a second transmitting unit configured to transmit a channel measurement RS and an interference measurement RS to the second communication device according to the DCI;

a result receiving unit configured to acquire a CSI measurement result transmitted by the second communication device.

In another aspect, an embodiment of the present invention provides a device for measuring channel state information, where the device includes:

a first acquisition unit configured to acquire the DCI and the resource configuration information transmitted by the first communication device;

a second obtaining unit configured to obtain a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI;

a result determination unit configured to determine a CSI measurement result from the channel measurement RS and the interference measurement RS;

a result transmitting unit configured to transmit the CSI measurement result to the first communication device.

In another aspect, an embodiment of the present invention provides a terminal, including: a processor and a memory storing computer program instructions;

the steps of the channel state information measurement method described above are implemented when the processor executes the computer program instructions.

In another aspect, an embodiment of the present invention provides a computer storage medium, where computer program instructions are stored, and when the computer program instructions are executed by a processor, the steps of the channel state information measurement method are implemented.

According to the embodiment of the invention, the channel measurement RS and the interference measurement RS can be triggered through the DCI, the channel measurement RS and the interference measurement RS can be independently configured, and the CSI measurement result is calculated according to the channel measurement RS and the interference measurement RS, so that the result accuracy is high, and the reliability and the effectiveness of communication are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart illustrating a channel state information measurement method according to an embodiment of the present invention;

fig. 2 is a diagram illustrating an example of trigger times of a channel measurement RS and an interference measurement RS in a time domain according to an embodiment of the present invention;

fig. 3 is a diagram illustrating still another example of the triggering times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention;

fig. 4 is a diagram illustrating another example of the triggering times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of one port of a DMRS of a physical resource block in an embodiment of the present invention;

fig. 6 is a diagram illustrating still another example of the triggering times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention;

fig. 7 is a flowchart illustrating a channel state information measurement method according to another embodiment of the present invention;

fig. 8 is a flow chart diagram of an interaction method of a first communication device and a second communication device;

fig. 9 is a schematic structural diagram of a channel state information measuring apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a channel state information measuring apparatus according to another embodiment of the present invention;

fig. 11 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

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

In order to solve the problem of the prior art, embodiments of the present invention provide a method, an apparatus, a device, and a computer storage medium for measuring channel state information. First, a method for measuring channel state information according to an embodiment of the present invention is described below.

Fig. 1 is a flowchart illustrating a channel state information measurement method according to an embodiment of the present invention, which is applied to a first communication device, and includes the following steps:

s110, sending resource configuration information to second communication equipment;

s120, sending downlink control information DCI to the second communication equipment;

s130, sending a channel measurement Reference Signal (RS) and an interference measurement (RS) to second communication equipment according to the DCI;

and S140, acquiring a CSI measurement result sent by the second communication equipment.

In the embodiment of the present invention, an aperiodic interference measurement RS can be sent to the second communication device based on Downlink Control Information (DCI) sent to the second communication device, so as to update the interference Information change in time without reducing CSI measurement accuracy. That is to say, since the embodiment of the present invention can trigger the sending of the interference measurement RS through the DCI, the interference measurement RS can be sent only according to the CSI requirement, the update time of the interference measurement RS is flexibly set, and the accuracy of CSI measurement is not reduced.

In the embodiment of the present invention, when CSI measurement is performed for a 5G system, the first communication device may be a network device such as a base station and a femto base station in the 5G system. However, the embodiment of the present invention is not limited to be applied to a 5G system, and when CSI measurement is performed for other mobile communication systems, the first communication device may also be a base station in a GSM system or a CDMA system, a base station in a WCDMA system, or an evolved base station in an LTE system. Of course, the first communication device may also be other devices having a base station function, which is not limited in the present invention.

In the embodiment of the present invention, when CSI measurement is performed for a 5G system, the second communication device may be a user equipment to which the 5G system is applied. Embodiments of the present invention are not limited to application in 5G systems, however, and the second communication device may be mobile or fixed when CSI measurements are made for other mobile communication systems, and the second communication device may be a cellular phone, a cordless phone, a session initiation protocol phone, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, etc. It should be noted that with the rise of the internet of things technology, more and more devices which do not have communication functions before, such as but not limited to, home appliances, vehicles, tool devices, service devices and service facilities, start to obtain wireless communication functions by configuring wireless communication units, so as to access a wireless communication network and receive remote control. Such a device has a wireless communication function due to the arrangement of the wireless communication unit, and may be a second communication device.

Fig. 2 is a diagram illustrating an example of trigger times of a channel measurement RS and an interference measurement RS in a time domain according to an embodiment of the present invention.

In the embodiment of the present invention, the resource configuration information may be sent by a higher layer signaling, and the resource configuration information may include time-frequency domain information of the RS used for CSI calculation. In the embodiment of the present invention, the channel measurement RS may be transmitted to the second communication device according to the time-frequency domain information.

Specifically, the channel measurement RS in the embodiment of the present invention may be a periodic, semi-static, or aperiodic signal. Wherein, if the signal is a periodic or semi-static signal, the time domain information of the channel measurement RS may include a signal period and a period offset. The first communication device may periodically transmit a channel measurement RS to the second communication device; if the signal is an aperiodic signal, that is, the channel measurement RS is triggered by the DCI, the time domain information of the channel measurement RS includes an offset relative to the time slot in which the DCI is located.

Taking the example shown in fig. 2 as an example, the time domain information of the channel measurement RS201 in the resource configuration information may be set to have a period of 18 slots, and the period offset of the channel measurement RS201 is 2 slots, at this time, the channel measurement RS201 is a periodic signal, and the channel measurement RS201 may be sent once by the first communication device to the second communication device every 18 slots according to the set signal period and the period offset.

In the embodiment of the present invention, the DCI indicates a reporting time of a CSI measurement result, where the reporting time is aperiodic CSI reporting, and taking the example shown in fig. 2 as an example, the interference measurement RS202 is an aperiodic Signal, such as a Demodulation Reference Signal (DMRS).

In an embodiment of the present invention, the interference measurement RS may be an aperiodic trigger signal determined by the DCI and triggered by the first communication device according to the trigger time corresponding to the DCI. Specifically, after the first communication device determines one DCI, the first communication device may determine, based on the DCI, a trigger time of an interference measurement RS required for CSI measurement corresponding to the DCI, and therefore, the first communication device may send the interference measurement RS for CSI measurement to the second communication device at the trigger time. And the triggering time of the interference measurement RS corresponding to one DCI is a time before the reporting time of the CSI measurement result corresponding to the DCI.

In the embodiment of the present invention, the DCI may trigger a channel measurement RS and an interference measurement RS at the same time.

Fig. 3 is a diagram showing still another example of the trigger times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention. For the channel measurement RS201, the first communication device transmits the channel measurement RS201 to the second communication device at transmission time t2, transmission time t4, and transmission time t6, respectively. For the interference measurement RS202, after the first communication device sends the DCI with the reporting time being the reporting time t3, the reporting time t5, and the reporting time t8 to the second communication device, the first communication device may send the interference measurement RS202 to the second communication device according to the trigger time t2, the trigger time t4, and the trigger time t7 corresponding to the DCI.

Fig. 4 is a diagram showing another example of the trigger times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention. For the channel measurement RS201, the first communication apparatus transmits the channel measurement RS201 to the second communication apparatus at transmission time t 10. For the interference measurement RS202, after the first communication device sends the DCI with the reporting time being the reporting time t11 to the second communication device, the first communication device may determine, according to a plurality of different DCIs, to send the interference measurement RS202 to the second communication device at the triggering time t12, the triggering time t13, the triggering time t14, and the triggering time t15, respectively. Thus, the second communication device can measure the channel by using the channel measurement RS at the time t10, measure the interference according to the interference measurement RS at the time t12, t13, t14 and t15, and perform CSI calculation according to the measured channel and interference. The channel measurement RS may be transmitted in the same time slot as the interference measurement RS, or may be transmitted in a different time slot.

In the embodiment of the invention, the CSI measurement mode can be set, so that the CSI measurement mode can utilize different RS types and time-frequency domain positions of the RS to receive the channel measurement RS and the interference measurement RS.

In the embodiment of the present invention, the receiving type of the channel measurement RS may be the CSI-RS, and at this time, it is not necessary to configure a receiving mode of the channel measurement RS, and only the port and the time-frequency domain position of the CSI-RS need to be set. The second communication device may perform channel measurement based on the periodically transmitted CSI and interference measurement based on the aperiodic triggered CSI-RS or DMRS. And then, CSI calculation is carried out according to the channel measurement result and the interference measurement result. Of course, the second communication device may also perform channel measurement and interference measurement based on the aperiodic-triggered CSI-RS, and then perform CSI calculation, or perform channel measurement and interference measurement based on the DMRS, and then perform CSI calculation.

In this embodiment of the present invention, the reception type of the interference measurement RS may be a CSI-RS or a DMRS, and the reception pattern of the interference measurement RS may be set to a port and a time-frequency domain position of the CSI-RS, a partial Resource Element (RE) of one port of the DMRS of the physical Resource block, or all REs of one port of the DMRS of the physical Resource block.

Fig. 5 shows a structural diagram of one port of a DMRS of one physical resource block in an embodiment of the present invention. The DMRS for a physical resource block 501 has a first port with six first resource elements 502 and a second port with six second resource elements 503. Either one of the first port and the second port may be used when receiving the interference measurement RS. Taking the first port to receive the interference measurement RS as an example, the interference may be measured by all of the six first resource elements 502, or may be measured by one or more of the six first resource elements 502.

Fig. 6 is a diagram showing another example of the trigger times of the channel measurement RS and the interference measurement RS in the time domain in the embodiment of the present invention. As shown in fig. 6, the reporting time when the first communication device sends the CSI measurement result to the second communication device is the reporting time t 17. The first communication device transmits a channel measurement RS201 to the second communication device at a transmission time t16, and the first communication device transmits an interference measurement RS202, which is a CSI-RS, to the second communication device at a trigger time t 18. t16 and t18 may be the same time.

The first communication device transmits an interference measurement RS203, which is a DMRS, to the second communication device at a trigger time t 19. Thus, for the reporting time t17, the first communication device can flexibly select to use the CSI-RS or the DMRS for interference measurement. For CSI-RS based channel measurement, the second communication device may perform CSI calculation using the channel measurement CSI-RS at time t16 and the interference measurement CSI-RS at time t 18. For DMRS based CSI computation, the second communication device may perform CSI computation using the channel measurement CSI-RS at time t16 and the interference measurement DMR-RS at time t 19. That is, DCI triggers only an interference measurement RS at time t19 without triggering a channel measurement RS. Of course, for the CSI calculation based on the DMRS, the method further includes performing channel measurement and interference measurement using only the DMRS, and performing CSI calculation.

According to the embodiment of the invention, the DCI triggers the interference measurement RS, and the channel measurement RS and the interference measurement RS can be independently configured, so that the interference measurement RS can be sent only according to the needs of CSI measurement, the flexible setting of the type and the updating time of the interference measurement RS is realized, and the overhead of the channel measurement RS can be saved. The resource utilization efficiency is improved.

In the embodiment of the present invention, the following three cases exist in the CSI measurement mode of the second communication device:

first case

The resource configuration information includes a mode of the second communication device for CSI measurement, the mode of CSI measurement can be determined when the second communication device receives the resource configuration information, and the mode set in the resource configuration information is always used in all subsequent CSI measurements without being changed.

For example, the first communication device may transmit resource configuration information to the second communication device through higher layer signaling, where the resource configuration information includes a reception type of the interference measurement RS, and set the interference measurement RS to use the DMRS or CSI-RS. Wherein, if the interference measurement RS uses the DMRS, the resource configuration information further includes a reception mode of the interference measurement RS, including configuring all REs or part of REs of a port used by the DMRS; if the interference measurement RS uses the CSI-RS, the resource configuration information further includes a time-frequency domain position used by the CSI-RS.

Second case

The resource configuration information does not set a CSI measurement mode, and the DCI may further include a CSI measurement mode of the second communication device. Therefore, when the second communication device receives the DCI, the CSI measurement mode corresponding to the DCI may be determined, and each time the DCI is received, the CSI measurement mode corresponding to the DCI is determined according to the DCI.

For example, the second communication device may be instructed to receive the interference measurement RS using the DMRS or the CSI-RS by adding the interference measurement RS type indication field to the DCI.

Specifically, an interference measurement RS type indication field of 1bit number (bit) may be added to the DCI to indicate that DMRS or CSI-RS is used. As shown in table 1, bit 0 indicates that DMRS is used for interference measurement, and bit 1 indicates that DMRS is not used and CSI-RS is used for interference measurement.

TABLE 1 interference measurement RS type indicator field LUT

Threshold value	Means of
		0	Using DMRS
1	Absence of DMRS

The interference measurement RS type indication field only indicates the reception type, and does not indicate which DMRS port the second communication device uses for interference measurement. If indicated in the DCI, more bits need to be added to indicate the DMRS port indication field. As shown in table 2, different code points correspond to different DMRS ports. It should be noted that a resource element indication field of a resource element using a certain DMRS port may be added. And, the DMRS port indication field and the resource element indication field may be combined into the interference measurement RS type indication field, or may be indicated separately.

TABLE 2 DMRS Port indication Domain Table

Threshold value	Means of
		0000	Using DMRS port 0
。。。	。。。
		1011	Using DMRS ports 11
1100	Absence of DMRS
		Reserved

For another example, the type of the interference measurement RS used may be indicated by the CSI request field, and the second communication device may be indicated to receive the interference measurement RS to use the DMRS or the CSI-RS by adding a 1-bit DMRS-based CSI request field to the DCI. For example, if the value is set to 1, the second communication device uses DMRS as the interference measurement RS; if the value is 0, the second communication device uses the CSI-RS as an interference measurement RS. The modes of the ports and the REs used may be pre-configured, and the mode of the RE may be all REs of one port or a part of REs of one port.

Third case

The CSI measurement mode is not set in both the resource configuration information and the DCI, and the first communication device may further set the CSI measurement mode by reporting the configuration information. Specifically, the first communication device may send reporting configuration information to the second communication device, the reporting configuration information including a mode in which the second communication device performs CSI measurement.

Adding information indicating the mode of CSI measurement in the reporting configuration information may not change the CSI request field in the DCI. If the interference measurement RS is received by using the DMRS in the report configuration information, when the second communication device acquires the CSI request domain information, the second communication device may determine to calculate the CSI measurement result by using the DMRS.

The second communication device may be configured with multiple CSI reports, e.g. CSI report 1 calculates CSI using CSI-RS as channel measurement RS and interference measurement RS; the CSI report 2 adopts a CSI-RS as a channel measurement RS and a DMRS as an interference measurement RS to calculate the CSI; and the CSI report 3 adopts DMRS as a channel measurement RS and an interference measurement RS to calculate the CSI. The second communication device may report the CSI report 1, the CSI report 2, and the CSI report 3 at different reporting times. For example, for CSI report 2, the second communication device may report CSI at different times, and these CSI use different ports of the DMRS to calculate interference. The first communication device can dynamically trigger the second communication device to report which CSI report is based on, so that CSI of interference conditions measured according to different interference measurement RSs is obtained.

Fig. 7 is a flowchart illustrating a channel state information measurement method according to another embodiment of the present invention. As shown in fig. 7, the channel state information measuring method is applied to a second communication device, and the method includes:

s610, acquiring resource configuration information and DCI sent by first communication equipment;

s620, acquiring a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI;

s630, determining a CSI measurement result according to the channel measurement RS and the interference measurement RS;

and S640, sending the CSI measurement result to the first communication equipment.

In the embodiment of the invention, the aperiodic interference measurement RS can be received based on the DCI sent by the first communication equipment, and the CSI measurement result is calculated according to the periodic channel measurement RS and the aperiodic interference measurement RS, so that updated CSI information is reported immediately when interference changes, and the accuracy of CSI measurement is ensured while the RS overhead is reduced.

In the embodiment of the present invention, the DCI may include a reporting time of the CSI measurement result. Therefore, a specific method for acquiring the channel measurement RS and the interference measurement RS may include: and determining the reporting time of the CSI measurement result according to the DCI, and acquiring a channel measurement RS and an interference measurement RS corresponding to the reporting time. Transmitting the CSI measurement result to the first communication device includes: and determining the reporting time of the CSI measurement result according to the DCI, and sending the CSI measurement result to the first communication equipment at the reporting time.

In the embodiment of the present invention, a specific method for obtaining an interference measurement RS may include: and determining the reporting time of the CSI measurement result according to the DCI, determining an interference calculation mode of the interference measurement RS according to the resource configuration information, and acquiring the interference measurement RS and calculating the CSI measurement result according to the interference calculation mode.

Specifically, in the embodiment of the present invention, the interference calculation manner may include at least the following two cases: first case

And only using the interference measurement RS triggered by the DCI, and correspondingly, calculating a CSI measurement result according to the interference measurement RS by the interference calculation mode.

Specifically, taking the example shown in fig. 4 as an example, for the channel measurement RS201, the first communication apparatus transmits the channel measurement RS201 to the second communication apparatus at the transmission time t 10. For the interference measurement RS202, after the first communication device sends the DCI with the reporting time of the CSI measurement result being the fifth reporting time t11 to the second communication device, the first communication device may determine to send the interference measurement RS202 to the second communication device at the trigger time t12 according to the DCI.

At this time, for the reporting time t11, the second communication device calculates the CSI measurement result using the channel measurement RS201 at the transmission time t10 and the interference measurement RS202 at the trigger time t 12.

Of course, the DCI may trigger the channel measurement RS and the interference measurement RS simultaneously, i.e., t10 may be in the same slot as t 12.

Second case

When a plurality of interference measurement RSs are continuously transmitted before the reporting time, correspondingly, the interference calculation mode includes calculating CSI measurement results according to a weighted average of the plurality of interference measurement RSs.

Continuing with the example shown in fig. 4 as an example, for the reporting time t11, the second communications device may receive the interference measurement RSs 202 sent by the trigger time t12, the trigger time t13, the trigger time t14, and the trigger time t15, respectively, perform weighted averaging on the interference measurement RSs 202, and calculate CSI measurement results by using the weighted average of the interference measurement RSs 202 and the channel measurement RS201 at the sending time t 10.

As described in the above first and second cases, it is assumed that both the channel measurement RS201 and the interference measurement RS202 satisfy the processing time of the second communication device, and otherwise, the second communication device needs to calculate the CSI measurement result according to the channel measurement RS201 and the interference measurement RS202 that satisfy the processing time.

In the embodiment of the invention, when the receiving type of the channel measurement RS is the CSI-RS, the receiving mode of the channel measurement RS does not need to be configured, and only the port and the time-frequency domain position of the CSI-RS need to be set. If the DCI triggers the channel measurement RS and the interference measurement RS at the same time or only triggers the interference measurement RS and the DCI triggers the CSI report, the CSI calculation only needs to be carried out according to the RS indicated by the DCI at the moment, and an interference calculation mode can not be configured. The interference calculation mode is now calculated by default according to the first case.

In addition, if the first communication device indicates the channel measurement RS and the interference measurement RS through resource configuration, and the DCI is only used to trigger CSI reporting, an interference calculation mode needs to be configured at this time.

In the embodiment of the present invention, the reception type of the interference measurement RS may be a CSI-RS or a DMRS. And, the reception pattern of the interference measurement RS may be set to a port and a time-frequency domain position of the CSI-RS, a partial resource element of one port of the DMRS of the physical resource block, or a full resource element of one port of the DMRS of the physical resource block.

Fig. 8 shows a flow diagram of an interaction method of a first communication device and a second communication device.

S701, setting resource configuration information and report configuration information by first network equipment;

s702, the first network equipment sends resource configuration information and report configuration information to the second communication equipment;

s703, the first network device sends a periodic channel measurement RS to the second communication device according to the resource allocation information;

s704, the first network device sets DCI;

s705, the first network device sends DCI to the second communication device;

s706, the first network device sends interference measurement RS to the second communication device according to the DCI, wherein the interference measurement RS comprises aperiodic channel measurement RS;

s707, the second network equipment determines a CSI measurement result according to the channel measurement RS and the interference measurement RS;

s708, the second network device sends the CSI measurement result to the first communication device.

If the periodic channel measurement RS is not transmitted in S703, the first network device needs to transmit the aperiodic channel measurement RS to the second communication device in S706.

If the periodic channel measurement RS is transmitted in S703, the first network device may transmit an aperiodic channel measurement RS to the second communication device in S706.

Fig. 9 is a schematic structural diagram of a channel state information measuring apparatus according to an embodiment of the present invention. As shown in fig. 9, the apparatus for measuring channel state information, applied to a first communication device, includes:

a first transmitting unit 801 configured to transmit the resource configuration information and the DCI to the second communication device;

a second transmitting unit 802 configured to transmit a channel measurement RS and an interference measurement RS to the second communication device according to the DCI;

a result receiving unit 803 configured to acquire the CSI measurement result transmitted by the second communication device.

In the embodiment of the present invention, the second transmitting unit 802 can transmit the aperiodic interference measurement RS to the second communication device based on the aperiodic DCI transmitted by the first transmitting unit 801 to the second communication device, so that the second communication device calculates the CSI measurement result according to the periodic channel measurement RS and the aperiodic interference measurement RS, thereby meeting the accuracy requirement of CSI measurement when the interference measurement RS changes. In addition, in the embodiment of the invention, the sending of the channel measurement RS can be controlled through the resource configuration information and the sending of the interference measurement RS can be controlled through the DCI, so that the interference measurement RS can be sent only according to the needs of the DCI, the sending time of the interference measurement RS can be flexibly set, and the interference measurement RS is not sent when the CSI measurement is not needed, thereby achieving the purposes of saving the cost and reducing the resource consumption. Further, the channel measurement RS and the interference measurement RS may also be triggered by DCI, that is, the first communication device transmits DCI to the second communication device, and triggers the channel measurement RS and the interference measurement RS according to the DCI.

Fig. 10 is a schematic structural diagram illustrating a channel state information measuring apparatus according to another embodiment of the present invention. As shown in fig. 10, the apparatus for measuring channel state information is applied to a second communication device, and includes:

a first acquiring unit 901 configured to acquire the DCI and the resource configuration information transmitted by the first communication device;

a second obtaining unit 902, configured to obtain a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI;

a result determination unit 903 configured to determine a CSI measurement result from the channel measurement RS and the interference measurement RS;

a result transmitting unit 904 configured to transmit the CSI measurement result to the first communication device.

In the embodiment of the present invention, the second acquisition unit 902 can receive the aperiodic interference measurement RS based on the aperiodic DCI transmitted by the first communication device received by the first acquisition unit 901, so that the result determination unit 903 calculates the CSI measurement result from the periodic channel measurement RS and the aperiodic interference measurement RS, thereby satisfying the accuracy requirement of CSI measurement when the interference measurement RS varies. Further, the channel measurement RS and the interference measurement RS may also be triggered by DCI, that is, the first communication device transmits DCI to the second communication device, and triggers the channel measurement RS and the interference measurement RS according to the DCI.

Fig. 11 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention.

The mobile terminal 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which 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 mobile 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.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 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 101 can also communicate with a network and other devices through a wireless communication system.

The mobile terminal provides wireless broadband internet access to the user through the network module 102, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 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 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 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 101 in case of a phone call mode.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved 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 posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 105 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 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 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 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of 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, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 11, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 is an interface through which an external device is connected to the mobile terminal 100. 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 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program 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 109 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 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 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 the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

In addition, the mobile terminal 100 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.

Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor 110, a memory 109, and a computer program stored in the memory 109 and capable of running on the processor 110, where the computer program, when executed by the processor 110, implements each process of the above channel state information measurement method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

The 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 measurement method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A channel state information measurement method is applied to a first communication device, and the method comprises the following steps:

sending resource configuration information to the second communication device;

sending downlink control information DCI to the second communication device;

sending a channel measurement Reference Signal (RS) and an interference measurement (RS) to the second communication equipment according to the DCI;

and acquiring a Channel State Information (CSI) measurement result sent by the second communication equipment.

2. The channel state information measuring method of claim 1, wherein transmitting a channel measurement RS and an interference measurement RS to the second communication device according to the DCI comprises:

determining the triggering time of the channel measurement RS and the interference measurement RS according to the DCI;

and sending the channel measurement RS and the interference measurement RS to the second communication equipment according to the trigger time.

3. The channel state information measurement method according to claim 1, wherein the interference measurement RS is a demodulation reference signal, DMRS.

4. The channel state information measuring method of claim 1, wherein the resource configuration information comprises: time-frequency domain information of the RS for CSI computation.

5. The channel state information measuring method of claim 1, wherein the DCI comprises: a mode in which the second communication device performs CSI measurements.

6. The channel state information measuring method of claim 1, wherein the resource configuration information comprises: a mode in which the second communication device performs CSI measurements.

7. The channel state information measurement method of claim 1, wherein the method further comprises sending reporting configuration information to the second communication device, the reporting configuration information comprising a mode in which the second communication device makes CSI measurements.

8. The channel state information measurement method of any one of claims 5-7, wherein the pattern in which the second communication device makes the CSI measurement includes a port and a time-frequency domain position of the CSI-RS, a partial resource element of one port of the DMRS of the physical resource block, or a full resource element of one port of the DMRS of the physical resource block.

9. A channel state information measurement method is applied to a second communication device, and comprises the following steps:

transmitting the CSI measurement result to the first communication device.

10. The channel state information measuring method of claim 9, wherein:

the acquiring of the channel measurement RS and the interference measurement RS includes:

determining the reporting time of the CSI measurement result according to the DCI;

acquiring a channel measurement RS and an interference measurement RS corresponding to the reporting time;

transmitting the CSI measurement result to the first communication device comprises:

and sending the CSI measurement result to the first communication equipment at the reporting time.

11. The channel state information measurement method according to claim 9, wherein the interference measurement RS is a demodulation reference signal, DMRS.

12. The channel state information measuring method according to claim 9, wherein acquiring the interference measurement RS comprises:

and determining an interference calculation mode of the interference measurement RS according to the resource configuration information, wherein the interference calculation mode is used for calculating a CSI measurement result.

13. The method of claim 12, wherein the interference calculation includes calculating interference according to an interference measurement RS with a shortest time interval to the reporting time.

14. The channel state information measuring method according to claim 12, wherein the interference calculation means includes calculating interference from a plurality of interference measurement RSs.

15. The channel state information measurement method according to claim 9, wherein the resource configuration information includes a mode in which the second communication device performs CSI measurement; and acquiring the channel measurement RS and the interference measurement RS according to the mode.

16. The channel state information measuring method of claim 9, wherein the DCI further includes a mode in which the second communication device performs CSI measurement; and acquiring the channel measurement RS and the interference measurement RS according to the mode.

17. The channel state information measuring method of claim 9, wherein the method further comprises: acquiring report configuration information, wherein the report configuration information comprises a CSI measurement mode of the second communication equipment; and acquiring the channel measurement RS and the interference measurement RS according to the mode.

18. The channel state information measurement method of any of claims 15-17, wherein the pattern in which the second communication device makes CSI measurements includes a port and a time-frequency domain location of a CSI-RS, a partial resource element of one port of a DMRS of a physical resource block, or a full resource element of one port of the DMRS of the physical resource block.

19. An apparatus for measuring channel state information, the apparatus being applied to a first communication device, the apparatus comprising:

20. A channel state information measuring apparatus applied to a second communication device, the apparatus comprising:

a second obtaining unit, configured to obtain a channel measurement RS and an interference measurement RS according to the resource configuration information and the DCI;

21. A network device, characterized in that the network device comprises: a processor and a memory storing computer program instructions;

the processor, when executing the computer program instructions, implements the channel state information measurement method of any of claims 1-8.

22. A terminal, characterized in that the terminal comprises: a processor and a memory storing computer program instructions;

the processor, when executing the computer program instructions, implements the channel state information measurement method of any of claims 9-18.

23. A computer storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the steps of the channel state information measurement method according to any one of claims 1-8.

24. A computer storage medium having computer program instructions stored thereon, which when executed by a processor, implement the steps of the channel state information measurement method according to any one of claims 9-18.