CN108540995B

CN108540995B - Channel state detection method, network equipment and user equipment

Info

Publication number: CN108540995B
Application number: CN201710124734.4A
Authority: CN
Inventors: 孙晓东; 宋扬
Original assignee: Vivo Software Technology Co Ltd
Current assignee: Vivo Software Technology Co Ltd
Priority date: 2017-03-03
Filing date: 2017-03-03
Publication date: 2020-10-02
Anticipated expiration: 2037-03-03
Also published as: CN108540995A

Abstract

The invention discloses a channel state detection method, network equipment and user equipment, wherein the method comprises the following steps: sending configuration information to user equipment, sending downlink reference signals to N downlink receiving ports of the user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain channel state information of the uplink sending ports, and receiving the channel state information of the N downlink receiving ports sent by the user equipment; and determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port.

Description

Channel state detection method, network equipment and user equipment

Technical Field

The present invention relates to a channel detection technology in the field of communications, and in particular, to a channel state detection method, a network device, and a user equipment.

Background

In a future 5G (5Generation, fifth Generation) mobile communication system, high frequency communication and large-scale antenna technology will be introduced to achieve the target of 20Gbps for downlink transmission rate and 10Gbps for uplink transmission rate. High frequency communication can provide wider system bandwidth, the size of the antenna can be smaller, and large-scale antenna deployment in a base station and a User Equipment (UE) is facilitated. In high frequency communication, a TRP (Transmission and Reception Point) and a UE transmit and receive using a beamforming technique. Fast and accurate CSI (Channel state information) measurement and feedback will be the focus of future 5G mobile communication system research.

In an existing LTE (Long Term Evolution) system, a CRS (cell specific Reference Signal) and a CSI-RS (Channel state Information Reference Signal) are used for Channel measurement in a downlink, and a UE needs to display feedback CSI including RI (Rank Information), PMI (precoding matrix Information), and CQI (Channel Quality Information); the uplink uses SRS (Sounding Reference Signal) for channel measurement. Particularly, in a TDD (Time Division Duplex) system, the SRS can also be used for downlink channel measurement on the base station side according to channel reciprocity.

However, currently, in a high frequency mobile communication TDD system, only partial CSI can be obtained according to channel reciprocity. If only partial CSI obtained according to channel reciprocity is used for data transmission, the data transmission rate may be reduced.

Disclosure of Invention

The present invention mainly aims to provide a channel state detection method, a network device and a user equipment, and aims to solve the above problems in the prior art.

In order to achieve the above object, the present invention provides a channel state detection method, applied to a network device, including:

sending configuration information to user equipment, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

sending downlink reference signals to N downlink receiving ports of user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain channel state information of the uplink sending ports, and receiving the channel state information of the N downlink receiving ports sent by the user equipment;

and determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port.

The invention provides a channel state detection method, which is applied to user equipment and comprises the following steps:

receiving configuration information sent by a network device, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

receiving downlink reference signals sent by network equipment through N downlink receiving ports based on the configuration information, and sending channel state information of the N downlink receiving ports to the network equipment;

and sending uplink reference signals to the network equipment through M uplink sending ports based on the configuration information.

The present invention provides a network device, comprising:

a configuration sending unit, configured to send configuration information to a user equipment, where the configuration information at least includes: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a reference signal sending unit, configured to send downlink reference signals to N downlink receiving ports of a user equipment;

a reference signal receiving unit, configured to receive uplink reference signals sent by the user equipment through M uplink sending ports;

a state obtaining unit, configured to measure the uplink reference signal to obtain channel state information of an uplink sending port, and receive the channel state information of N downlink receiving ports sent by the user equipment;

a processing unit, configured to determine downlink channel state information of the network device and/or determine uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port.

The present invention provides a user equipment, comprising:

a configuration receiving unit, configured to receive configuration information sent by a network device, where the configuration information at least includes: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a downlink reference signal detection unit, configured to receive, through the N downlink receiving ports, a downlink reference signal sent by the network device based on the configuration information, and send channel state information of the N downlink receiving ports to the network device;

and the uplink reference signal sending unit is used for sending uplink reference signals to the network equipment through the M uplink sending ports based on the configuration information.

The invention provides a channel state detection method, network equipment and user equipment, which configure each port of the user equipment to determine a downlink receiving port used by the user equipment for receiving a downlink reference signal and an uplink sending port for sending an uplink reference signal; and then receiving the detected downlink port channel state information reported by the user equipment, and finally determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment by combining the channel state information corresponding to the uplink sending port determined by the user equipment. Therefore, the method can quickly acquire the comprehensive channel state information of the user equipment and the network equipment, thereby ensuring the communication quality and the communication efficiency of the system.

Drawings

Fig. 1 is a schematic flow chart of a channel state detection method according to an embodiment of the present invention 1;

FIG. 2 is a schematic diagram of a scenario 1 according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a scenario 2 according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a channel state detection method according to an embodiment of the present invention, which is shown in fig. 2;

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

FIG. 6 is a schematic diagram of a UE configuration according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware component structure of a network device according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a hardware component structure of a ue according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

The first embodiment,

An embodiment of the present invention provides a channel state detection method, which is applied to a network device, and as shown in fig. 1, the method includes:

step 101: sending configuration information to user equipment, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

step 102: sending downlink reference signals to N downlink receiving ports of user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain channel state information of the uplink sending ports, and receiving the channel state information of the N downlink receiving ports sent by the user equipment;

step 103: and determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port.

Here, the network device may include a base station, a TRP, or the like in a communication network capable of managing at least one user equipment.

The embodiment is particularly suitable for a sparse channel scenario of a future high-frequency communication system, and obtains a corresponding relation between transmission beams and reception beams between network equipment, such as a TRP (channel state information-reference signal) and User Equipment (UE), through beam management, and a network side configures transmission of a downlink reference signal (such as a CSI-RS) at a part of the TRP and an uplink reference signal (such as an SRS) at a part of the UE; then, the UE side feeds back the CSI detected by the UE side to the network device, specifically, the CSI can be fed back to the network device, so that the network device can quickly obtain more accurate and more comprehensive CSI, that is, more complete channel state information of the ports, and further, the data transmission rate is effectively improved.

The network device determines a match of the transmitting and receiving ports, which may include: acquiring a downlink corresponding relation between at least one downlink sending port of the user equipment and a downlink receiving port of the user equipment; acquiring an uplink corresponding relation between at least one uplink receiving port of the user equipment and an uplink sending port of the user equipment;

and selecting N downlink receiving ports of the user equipment matched with the N downlink sending ports of the user equipment based on the downlink corresponding relation and the uplink corresponding relation, and selecting M uplink sending ports of the user equipment matched with M uplink receiving ports of the user equipment.

It can be understood that, the manner of acquiring all uplink transmitting ports and downlink receiving ports of the ue side may be that, before executing step 101, the ue actively reports the uplink transmitting ports and the downlink receiving ports; or, the history information of the user equipment can be acquired; or after the network equipment initiates a request for acquiring the port information to the user equipment, the user equipment reports the port information.

In high-frequency mobile communication, a communication link is mainly a direct path, reflection, scattering and diffraction paths are few, and a channel matrix is a sparse matrix. In a future 5G high-frequency mobile communication system, a base station or a cell or both a TRP side and a UE side adopt beamforming for transmitting and receiving, and a beam management process can determine one or more optimal transmitting and receiving antenna port pairs. The determination method of the sending and receiving port pair may be determined by optimizing transmission signals among each other in a beam management process, and the optimal transmission signals may be reference signal received power RSRP maximum and/or SINR maximum and/or interference minimum.

In a port set composed of the N downlink receiving ports and the M uplink transmitting ports, the port set is a set including all the N downlink receiving ports and all the M uplink transmitting ports.

In a special scenario, in order to improve reliability and effectiveness of data transmission, it is necessary to quickly obtain CSI, for example, a real-time service with high requirements on time delay and transmission rate. In particular, in TDD systems, according to channel reciprocity, a UE may estimate an uplink channel according to CSI-RS, and a base station or cell or TRP may estimate a downlink channel according to SRS.

The configuration information in the embodiment of the present invention further includes at least one of the following:

indication information of time frequency resources occupied by uplink reference signals and/or time frequency resources occupied by downlink reference signals;

and transmitting cycle indication information of the uplink reference signal and/or the downlink reference signal.

For example, corresponding transmission and/or reception resources may be indicated by the network device through configuration information within a plurality of symbols, which may include configuring beamforming-based CSI-RS and SRS to transmit or receive in one or more slots or in one or more subframes.

And the configuration information of the CSI-RS and/or the SRS at least comprises the identification of the time-frequency resource and the transmission period indication information.

It should be specifically noted that, the indication information of the time-frequency resource may specifically be at least one of the following information: indication information of time-frequency resources occupied by the CSI-RS and/or the SRS, antenna ports, indication information of time-domain resources and beam identification.

The transmission cycle indication information may be specifically used to indicate periodic transmission, semi-static transmission, and aperiodic triggering modes of the CSI-RS and/or the SRS.

The period may be set according to an actual situation, which is not described herein. The aperiodic triggering manner may be turned on according to a request of a user, for example, if the ue or the network side needs to perform all uplink transmissions and detect the csi of the dl receiving port, the ue or the network side may initiate a request or actively trigger.

It can be understood that, in this embodiment, the receiving resource identifier corresponding to the indication information of the transmission time-frequency resource of the downlink reference signal (e.g., CSI-RS) is different from or partially the same as the transmission time-frequency resource identifier of the uplink reference signal (e.g., SRS). That is, the resource for receiving the downlink reference signal on the user equipment side and the resource for transmitting the uplink reference signal may have a part of the same resource.

Correspondingly, the receiving resource identifier corresponding to the sending resource identifier of the SRS is different from or partially the same as the sending resource identifier of the CSI-RS. And will not be described in detail herein.

It should also be noted that in the downlink primary slot, the beamformed SRS may occupy the uplink control domain symbol for transmission. In the time slot with the main uplink action, the CSI-RS based on beam forming can occupy the symbol transmission of a downlink control domain. That is, in the uplink timeslot, there may be a part of downlink control domain symbols, and this part of symbols may be used for transmitting downlink reference signals; likewise, in the downlink time slot, there may be a part of uplink control domain symbols, and this part of symbols may be used for transmitting uplink reference signals.

Further, the configuration information may further include a reporting mode of the user equipment;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

correspondingly, the method further comprises the following steps:

receiving the channel state information of the N downlink receiving ports reported by the user equipment based on the reporting mode; wherein the channel state information is measured by the user equipment.

Specifically, the reporting mode at least includes a resource identifier, a reporting type (explicit or implicit) of the CSI, and a reporting period parameter. And the UE side detects the CSI-RS based on the reporting mode to obtain all or part of CSI, including all or part of quantized channel characteristic values and characteristic vectors or channel matrixes, and reports the CSI-RS to the network equipment side.

The explicit or implicit reporting mode may refer to a reporting mode in which CSI is directly reported as a display reporting mode; reporting the identification information or index information corresponding to the CSI (or channel state) is an implicit reporting method. The identification information or index information corresponding to the CSI may be set in advance in the network device and the user equipment, and a specific storage form may be a table, which is not exhaustive here.

Determining the downlink channel state information of the network device and/or determining the uplink channel state information of the user equipment based on the channel state information of the uplink transmitting port and the downlink receiving port may specifically be:

the network equipment carries out reciprocal processing on the channel state information of N downlink receiving ports of the user equipment to obtain an uplink channel state corresponding to the corresponding port, then obtains the uplink channel state corresponding to the corresponding uplink receiving port based on uplink reference signals sent by the user equipment through M uplink sending ports, and finally, the network equipment obtains all uplink channel state information of the user equipment;

and/or the presence of a gas in the gas,

the network equipment receives downlink receiving channel state information corresponding to N downlink receiving ports reported by user equipment, and then obtains uplink channel state information of the ports based on measurement of uplink reference signals sent by the user equipment through M uplink sending ports; carrying out reciprocity processing on the uplink channel state information to obtain corresponding downlink state information; and finally, all downlink channel state information of the network equipment side can be acquired.

For example, the network device receives all or part of CSI obtained by the UE side according to the CSI-RS measurement, and uplink channel state information corresponding to part of uplink transmission ports obtained by combining the SRS detected by the network device; carrying out reciprocal calculation on the CSI to obtain corresponding uplink channel state information, and synthesizing the two parts to obtain all uplink channel state information of the user equipment;

correspondingly, the network equipment also receives the CSI reported by the UE and detects the SRS; determining own partial downlink channel state information according to the CSI; then carrying out reciprocal processing on the detection result obtained by the SRS to obtain the downlink channel state information corresponding to the part of ports; and after the two parts are integrated, obtaining all downlink channel state information of the network equipment.

It should be noted that the above method is particularly suitable for a scenario where uplink and downlink of the TDD system have reciprocity. The CSI acquisition method is particularly suitable for a distributed TRP scene, and the channel matrix can be further simplified into a block matrix in the scene. The CSI acquisition method is particularly suitable for scenes with fast channel change and needing to acquire all CSI quickly, such as real-time services with high requirements on time delay and transmission rate.

An example of this embodiment, see fig. 2:

assuming that an uplink channel and a downlink channel have reciprocity, the distances between TRP1 and TRP2 in the same cell are far, the beam management process determines that the optimal transmission and reception beams between TRP1 and TRP2 and UE correspond one to one, namely TRP1CSI-RS

transmission antenna ports

0 and 1 and TRP2CSI-RS

transmission antenna ports

2 and 3 correspond to UE reception antenna ports 0 to 4 one to one respectively, and UE SRS transmission antenna ports 0 to 4 correspond to TRP1

reception antenna ports

0 and 1 and TRP2

reception antenna ports

2 and 3 one to one respectively.

Limited by the transmission capability of the UE, the UE can only transmit the beamforming-based SRS on 2 antenna ports at the same time. For fast transmitting all channel CSI information, the network side configures SRS in an uplink symbol of a slot to transmit through

ports

0 and 1, and configures CSI-RS in a downlink symbol of the slot to transmit through

ports

2 and 3, as shown in fig. 2. And the UE measures the CSI-RS and reports partial CSI measured on the receiving

antenna ports

2 and 3, wherein the partial CSI comprises the eigenvalue and the eigenvector of the partial channel.

And the network side receives partial CSI reported by the UE side, combines the partial CSI with SRS channel information obtained by self measurement to generate all CSI, and further obtains layer mapping, modulation coding and precoding modes.

The reasonable CSI-RS and SRS configuration is carried out on the corresponding relation between the plurality of TRP sending beams and the UE receiving beams obtained through the beam management of the example, so that the CSI acquisition efficiency can be improved, the data transmission effectiveness and reliability can be improved, and the expenses of the CSI-RS and the SRS can be reduced.

Example two of this embodiment, as shown in fig. 3, includes:

in a 5G high-frequency mobile communication TDD system, assuming that uplink and downlink channels have reciprocity, a beam management process determines that the optimal transmission and reception beam pairs between TRP1 and UE are in one-to-one correspondence, namely TRP CSI-RS transmission antenna ports 0-7 and UE reception antenna ports 0-7 are in one-to-one correspondence, and UE SRS transmission antenna ports 0-7 and TRP reception antenna ports 0-7 are in one-to-one correspondence respectively. Limited by the transmission capability of the UE, the UE can only transmit the beamforming-based SRS on 4 antenna ports at the same time. For fast transmitting all channel CSI information, the network side configures SRS in one or more uplink symbols of a slot to be transmitted through ports 0 to 4, and configures CSI-RS in one or more downlink symbols of the slot to be transmitted through ports 4 to 7, as shown in the figure. And the UE measures the CSI-RS and reports partial CSI measured at the receiving antenna ports 4-7, wherein the partial CSI comprises the eigenvalue and the eigenvector of the partial channel. And the network side receives partial CSI reported by the UE side, combines the partial CSI with SRS channel information obtained by self measurement to generate all CSI, and further obtains layer mapping, modulation coding and precoding modes.

The reasonable CSI-RS and SRS configuration is carried out on the corresponding relation between the TRP sending wave beam and the UE receiving wave beam obtained through the wave beam management of the example, so that the CSI acquisition efficiency can be improved, the data transmission effectiveness can be improved, and the expenses of the CSI-RS and the SRS can be reduced.

Further, the embodiment can also be used for quickly acquiring the CSI of the future 5G high-frequency mobile communication TDD system, and can also be used for reporting the CSI of the channel block for multiple times by the future 5G high-frequency mobile communication system. Especially, when the transmitting port and the receiving port can not be matched one by one, the measurement can be carried out for multiple times in groups and reported. It should be noted that, each time configuration is performed, as many transmit-receive port pairs as possible can be configured to perform transmission and reception of reference signals.

Specifically, the method comprises the following steps: the configuration information further includes: receiving time frequency resources corresponding to downlink reference signals and receiving time information of at least one group of downlink receiving ports;

the method further comprises the following steps:

grouping downlink receiving ports of the user equipment; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports;

matching downlink transmitting ports aiming at each group of downlink receiving ports; the downlink receiving ports matched with the same downlink sending port in different downlink receiving port groups are the same or different;

and sending the downlink reference signal to each downlink receiving port in each group of downlink receiving ports based on the time-frequency resource corresponding to the received downlink reference signal and the receiving time information.

It should be understood that the scenario requiring port grouping may include that the number of transmission ports of the user equipment is smaller than the number of receiving ports, or that the number of transmission ports of the network equipment is smaller than the number of receiving ports.

For example, the current user equipment may include 32 downlink receiving ports, and the network equipment has only 16 transmitting ports at a time, so that the 16 downlink ports of the user equipment may be divided into two groups, and the ports of each group do not overlap; dividing the 32 ports into two groups, sending downlink reference signals to the first group of ports in a first sending period, and measuring and reporting by user equipment; and the second sending period sends downlink reference signals to the second group of ports, the user equipment measures and reports the downlink reference signals, and then the network equipment obtains the channel state information of the 32 ports. Or, the ue may report the channel state information of the 32 ports at one time after completing the detection for two periods.

The foregoing is merely an example, and each time grouping is performed, the number of ports included in a group may be allocated as much as possible, for example, when the number of downlink transmission ports of the network device is 24, the receiving ports of the user equipment may be grouped into two groups, where each group includes 24 downlink receiving ports; in this regard, there may be advantages over the prior art in terms of the number of ports per test.

In addition, the 16 sending ports of the network device correspond to different downlink receiving ports in the two sending periods, and can be sent to the user equipment through the configuration information in advance; it should be further understood that the matching relationship between the sending and receiving ports corresponding to the two sending periods, and the time information of each sending period may be sent to the user equipment through the configuration information.

The foregoing only shows a scenario in which there are no coincident ports in two receive port groups, and there may actually be coincident ports, for example, a user equipment has 32 receive ports, and there may also be 18 ports in each receive port group, where the first group of receive ports may include 1-18 ports; the second set of receiving ports may include 15-32 ports; it can be seen that the ports 15/16/17/18 are coincident. Then the quality detected by the two receiving ports 15/16/17/18 may be reported equally or may be reported optimally once when the detected channel status is reported.

The configuration information further includes: at least one group of uplink receiving ports receives time frequency resources corresponding to the uplink reference signals and sending time information;

the receiving uplink reference signals sent by the user equipment through the M uplink sending ports includes:

when the number of the uplink sending ports of the user equipment is less than the number of the uplink receiving ports of the network equipment, grouping the uplink receiving ports of the network equipment; wherein, the uplink receiving ports contained in different uplink receiving ports are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

matching uplink sending ports aiming at each group of uplink receiving ports;

and receiving the uplink reference signal sent by the user equipment through different uplink receiving port groups at least once based on the time-frequency resource corresponding to the uplink reference signal and the sending time information.

For example, 32 receiving ports of the network device are divided into two groups, and a first receiving period receives the uplink reference signal through the first group of receiving ports, and the network device performs measurement; in the second receiving period, the uplink reference signals are received by the second group of ports, and then the network device obtains the channel state information of the 32 receiving ports.

In addition, the 16 receiving ports of the network device correspond to different uplink receiving ports in the two receiving periods, and can be sent to the user equipment in advance through the configuration information; it should be further understood that the matching relationship between the sending and receiving ports corresponding to the two sending periods, and the time point information of each receiving period may be sent to the user equipment through the configuration information.

By adopting the scheme, each port of the user equipment can be configured to determine a downlink receiving port for receiving the downlink reference signal and an uplink sending port for sending the uplink reference signal of the user equipment; and then receiving the detected downlink port channel state information reported by the user equipment, and finally determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment by combining the channel state information corresponding to the uplink sending port determined by the user equipment. Therefore, the comprehensive channel state information of the user equipment can be rapidly acquired, and the communication quality and the communication efficiency of the system are ensured.

Example II,

An embodiment of the present invention provides a channel state detection method, which is applied to a user equipment, and as shown in fig. 4, the method includes:

step 401: receiving configuration information sent by a network device, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

step 402: receiving downlink reference signals sent by network equipment through N downlink receiving ports based on the configuration information, and sending channel state information of the N downlink receiving ports to the network equipment;

step 403: and sending uplink reference signals to the network equipment through M uplink sending ports based on the configuration information.

The embodiment is particularly suitable for a sparse channel scenario of a future high-frequency communication system, and obtains a corresponding relation between transmission and reception beams between network equipment, such as a TRP (channel state information-reference signal) and User Equipment (UE), through beam management, and a network side configures a downlink reference signal (such as a CSI-RS) of a part of the TRP and an uplink reference signal (such as an SRS) of a part of the UE; and then the UE side feeds back partial CSI corresponding to the CSI-RS detected by the UE side to the network equipment, so that the network equipment can quickly obtain more accurate and more comprehensive CSI, and further, the data transmission rate is effectively improved.

In high-frequency mobile communication, a communication link is mainly a direct path, reflection, scattering and diffraction paths are few, and a channel matrix is a sparse matrix. In a future 5G high-frequency mobile communication system, a base station or a cell or both a TRP side and a UE side adopt beamforming for transmitting and receiving, and a beam management process can determine one or more optimal transmitting and receiving antenna port pairs. The determination method of the transmitting and receiving antenna port pair may be determined by optimizing transmission signals between each other in a beam management process, and the optimal transmission signals may be maximum RSRP and/or maximum SINR and/or minimum interference.

The sending of the uplink reference signal to the network device through the M uplink sending ports based on the configuration information in the embodiment of the present invention further includes:

acquiring indication information of time-frequency resources occupied by uplink reference signals and/or time-frequency resources occupied by downlink reference signals and transmission period indication information of the uplink reference signals and/or the downlink reference signals from the configuration information; sending uplink reference signals to the network equipment through M uplink sending ports based on time-frequency resources occupied by the uplink reference signals in the configuration information and sending cycle indication information of the uplink reference signals;

correspondingly, the receiving, through the N downlink receiving ports, the downlink reference signal sent by the network device further includes:

acquiring indication information of time-frequency resources occupied by uplink reference signals and/or time-frequency resources occupied by downlink reference signals and transmission period indication information of the uplink reference signals and/or the downlink reference signals from the configuration information; and receiving the downlink reference signals transmitted by the network equipment through the N downlink receiving ports based on the time-frequency resources occupied by the downlink reference signals in the configuration information and the transmission cycle indication information of the downlink reference signals.

That is, beamforming-based CSI-RS and SRS transmissions may be configured simultaneously by the network device within multiple symbols, or within one or more slots, or within one or more subframes for beamforming-based CSI-RS reception and SRS transmission on the UE side.

And the configuration information of the CSI-RS and/or the SRS at least comprises resource identification and transmission period indication information.

It is to be specifically noted that the resource identifier indicates time-frequency resources occupied by the CSI-RS and/or SRS, and/or antenna ports, and/or a time identifier, and/or a beam identifier.

The transmission period indication information indicates a CSI-RS and/or SRS periodic transmission mode, a semi-static transmission mode and an aperiodic triggering mode.

It can be understood that, in this embodiment, the receiving resource identifier corresponding to the transmission resource identifier of the downlink reference signal (such as CSI-RS) is different from or partially the same as the transmission resource identifier of the uplink reference signal (such as SRS). That is, the resource for receiving the downlink reference signal on the user equipment side and the resource for transmitting the uplink reference signal may have a part of the same resource.

Further, acquiring a reporting mode from the configuration information, and reporting channel state information of the N downlink receiving ports based on the reporting mode;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

specifically, the network side needs to configure a CSI reporting mode to the UE, which at least includes a resource identifier, a CSI reporting type (explicit or implicit), and a period parameter.

And the UE side detects the CSI-RS to obtain all or part of CSI, comprises all or part of quantized channel characteristic values and characteristic vectors or channel matrixes and reports the CSI-RS to the network side.

Determining, based on the channel state information of the N downlink receiving ports and the channel state information of the M uplink transmitting ports, that the channel state information between the network device and the user equipment may specifically be: the network equipment carries out reciprocal processing on the channel state information of the N downlink receiving ports to obtain the channel state which can be detected by the network equipment side when the corresponding port carries out uplink transmission; and then combining the channel state information with the channel state information of M uplink sending ports detected by the self to finally obtain the channel state information of all uplink sending and downlink receiving ports. For example, the network side merges all or part of CSI obtained by the UE side according to the CSI-RS measurement and all or part of CSI obtained by the network side detecting the SRS, and further calculates and generates all or part of CSI.

It should be noted that the CSI acquisition method is particularly suitable for a scenario where uplink and downlink of the TDD system have reciprocity. The CSI acquisition method is particularly suitable for a distributed TRP scene, and the channel matrix can be further simplified into a block matrix in the scene. The CSI acquisition method is particularly suitable for scenes with fast channel change and needing to acquire all CSI quickly, such as real-time services with high requirements on time delay and transmission rate.

It should be further noted that this embodiment may also be used for quickly obtaining CSI of a future 5G high-frequency mobile communication TDD system, and may also be used for reporting CSI of channel blocks in multiple levels by the future 5G high-frequency mobile communication system. Especially, when the transmitting port and the receiving port can not be matched one by one, the measurement can be carried out for multiple times in groups and reported.

The receiving, through the N downlink receiving ports, the downlink reference signals sent by the network device based on the configuration information includes:

acquiring time-frequency resources corresponding to downlink reference signals received by each group of downlink receiving ports and receiving time information from the configuration information; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports;

and receiving the sending downlink reference signal sent by the network equipment at least once through each group of downlink receiving ports based on the time-frequency resource corresponding to the received downlink reference signal and the receiving time information.

For example, 32 ports are divided into two groups, a first period sends downlink reference signals to the first group of ports, and the user equipment performs measurement and reports; and the second sending period sends downlink reference signals to the second group of ports, the user equipment measures and reports the downlink reference signals, and then the network equipment obtains the channel state information of the 32 ports. Or, the ue may report the channel state information of the 32 ports at one time after completing the detection for two periods.

In addition, the 16 sending ports of the network device correspond to different downlink receiving ports in the two sending periods, and can be sent to the user equipment through the configuration information in advance; it should be further understood that the matching relationship between the transmitting and receiving ports corresponding to the two transmitting periods, and the time lighting information of each transmitting period may be transmitted to the user equipment through the configuration information.

The sending, based on the configuration information, an uplink reference signal to the network device through the M uplink sending ports further includes:

acquiring time-frequency resources corresponding to the uplink reference signals sent by each group of uplink receiving ports and sending time information from the configuration information; wherein, the uplink receiving ports contained in different uplink receiving ports are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

and sending the uplink reference signal to an uplink receiving port corresponding to the network equipment through different uplink receiving port groups at least once based on the time-frequency resource corresponding to the uplink reference signal and the sending time information.

For example, 32 receiving ports of the network device are divided into two groups, and the first period receives the uplink reference signal through the first group of receiving ports, and the network device performs measurement; in the second receiving period, the uplink reference signals are received by the second group of ports, and then the network device obtains the channel state information of the 32 receiving ports.

In addition, the 16 receiving ports of the network device correspond to different uplink receiving ports in the two receiving periods, and can be sent to the user equipment in advance through the configuration information; it should be further understood that the matching relationship between the sending and receiving ports corresponding to the two sending periods, and the time information of each receiving period may be sent to the user equipment through the configuration information.

By adopting the scheme, each port of the user equipment can be configured to determine a downlink receiving port for receiving the downlink reference signal and an uplink sending port for sending the uplink reference signal of the user equipment; and then receiving the detected downlink port channel state information reported by the user equipment, and finally determining the downlink channel state information of the network equipment and/or determining the uplink channel state information of the user equipment by combining the channel state information corresponding to the uplink sending port determined by the user equipment. Therefore, the comprehensive channel state information can be rapidly acquired, and the communication quality and the communication efficiency of the system are ensured.

Example III,

An embodiment of the present invention provides a network device, as shown in fig. 5, including:

a configuration sending unit 51, configured to send configuration information to a user equipment, where the configuration information at least includes: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a reference signal sending unit 52, configured to send downlink reference signals to N downlink receiving ports of the user equipment;

a reference signal receiving unit 53, configured to receive uplink reference signals sent by the ue through M uplink sending ports;

a state obtaining unit 54, configured to measure the uplink reference signal to obtain channel state information of an uplink sending port, and receive the channel state information of N downlink receiving ports sent by the user equipment;

a processing unit 55, configured to determine, based on the channel state information of the uplink sending port and the downlink receiving port, downlink channel state information of the network device and/or uplink channel state information of the user equipment.

The network device determines matching of transmitting and receiving ports, and the configuration transmitting unit is configured to determine, based on at least one port included in the user device, M uplink transmitting ports where the user device performs uplink reference signal transmission, and N downlink receiving ports where the user device performs downlink reference signal reception;

generating configuration information based at least on the M uplink transmit ports transmitting uplink reference signals and the N downlink receive ports receiving downlink reference signals.

It can be understood that, the manner of acquiring all uplink transmitting ports and downlink receiving ports of the user equipment side may be that the configuration transmitting unit is configured to receive all wireless port information actively reported by the user equipment; or, the history information of the user equipment can be acquired; or after the network equipment initiates a request for acquiring the port information to the user equipment, the user equipment reports the port information.

The configuration sending unit is configured to obtain a downlink corresponding relationship between at least one downlink sending port of the configuration sending unit and a downlink receiving port of the user equipment; acquiring an uplink corresponding relation between at least one uplink receiving port of the user equipment and an uplink sending port of the user equipment;

In high-frequency mobile communication, a communication link is mainly a direct path, reflection, scattering and diffraction paths are few, and a channel matrix is a sparse matrix. In a future 5G high-frequency mobile communication system, a base station or a cell or both a TRP side and a UE side adopt beamforming for transmitting and receiving, and a beam management process can determine one or more optimal transmitting and receiving antenna port pairs. The determination method of the transmitting and receiving antenna port pair may be determined by optimizing transmission signals between each other in a beam management process, and the optimal transmission signals may be the maximum SINR and/or the minimum interference.

In the embodiment of the present invention, the configuration information is generated based on at least the M uplink transmission ports for transmitting the uplink reference signals and the N downlink reception ports for receiving the downlink reference signals, and the configuration transmission unit is configured to add, to the configuration information, indication information of time-frequency resources occupied by the uplink reference signals and/or time-frequency resources occupied by the downlink reference signals, and transmission cycle indication information of the uplink reference signals and/or the downlink reference signals.

That is, the configuration information may further include: and indicating information of the time frequency resource occupied by the uplink reference signal and/or the time frequency resource occupied by the downlink reference signal, and sending period indicating information of the uplink reference signal and/or the downlink reference signal. Beamforming-based CSI-RS and SRS transmission may be configured simultaneously by the network device within multiple symbols, or within one or more slots, or within one or more subframes, for beamforming-based CSI-RS reception and SRS transmission at the UE side.

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

correspondingly, the state obtaining unit is configured to receive channel state information of the N downlink receiving ports reported by the user equipment based on the reporting mode; wherein the channel state information is measured by the user equipment.

A processing unit 55, configured to perform reciprocal processing on the channel state information of the N downlink receiving ports, to obtain a channel state that can be detected by the network device side when the corresponding port performs uplink transmission; and then combining the channel state information with the channel state information of M uplink sending ports detected by the self to finally obtain the channel state information of all uplink sending and downlink receiving ports. For example, the network side merges all or part of CSI obtained by the UE side according to the CSI-RS measurement and all or part of CSI obtained by the network side detecting the SRS, and further calculates and generates all or part of CSI.

The configuration information further includes: receiving time frequency resources corresponding to downlink reference signals and receiving time information of at least one group of downlink receiving ports;

the configuration sending unit is configured to group the downlink receiving ports of the user equipment when the number of the downlink sending ports of the network equipment is smaller than the number of the downlink receiving ports of the user equipment; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports; matching downlink transmitting ports aiming at each group of downlink receiving ports; the downlink receiving ports matched with the same downlink sending port in different downlink receiving port groups are the same or different;

correspondingly, the reference signal sending unit is configured to send downlink reference signals to each downlink receiving port in each group of downlink receiving ports based on the time-frequency resource and the receiving time information corresponding to the received downlink reference signals.

the configuration sending unit is configured to group the uplink receiving ports of the network device when the number of the uplink sending ports of the user equipment is smaller than the number of the uplink receiving ports of the network device; wherein, the uplink receiving ports contained in different uplink receiving ports are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

correspondingly, the reference signal receiving unit is configured to receive, at least once through different uplink receiving port groups, the uplink reference signal sent by the user equipment based on the time-frequency resource corresponding to the uplink reference signal and the sending time information.

By adopting the scheme, each port of the user equipment can be configured to determine a downlink receiving port for receiving the downlink reference signal and an uplink sending port for sending the uplink reference signal of the user equipment; and then receiving the detected downlink port channel state information reported by the user equipment, and finally obtaining the channel state information of all uplink sending ports and downlink receiving ports by combining the channel state information corresponding to the uplink sending port determined by the user equipment. Therefore, the comprehensive channel state information can be rapidly acquired, and the communication quality and the communication efficiency of the system are ensured.

Example four,

An embodiment of the present invention provides a user equipment, as shown in fig. 6, including:

a configuration receiving unit 61, configured to receive configuration information sent by a network device, where the configuration information at least includes: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a downlink reference signal detection unit 62, configured to receive, through the N downlink receiving ports, a downlink reference signal sent by the network device based on the configuration information, and send channel state information of the N downlink receiving ports to the network device;

an uplink reference signal sending unit 63, configured to send, based on the configuration information, an uplink reference signal to the network device through the M uplink sending ports.

The uplink reference signal sending unit is configured to further obtain, from the configuration information, indication information of a time-frequency resource occupied by an uplink reference signal and/or a time-frequency resource occupied by a downlink reference signal, and sending cycle indication information of the uplink reference signal and/or the downlink reference signal; sending uplink reference signals to the network equipment through M uplink sending ports based on time-frequency resources occupied by the uplink reference signals in the configuration information and sending cycle indication information of the uplink reference signals;

correspondingly, the downlink reference signal detection unit is configured to further obtain, from the configuration information, indication information of a time-frequency resource occupied by an uplink reference signal and/or a time-frequency resource occupied by a downlink reference signal, and transmission cycle indication information of the uplink reference signal and/or the downlink reference signal; and receiving the downlink reference signals transmitted by the network equipment through the N downlink receiving ports based on the time-frequency resources occupied by the downlink reference signals in the configuration information and the transmission cycle indication information of the downlink reference signals.

Further, the user equipment further includes:

a reporting unit 64, configured to obtain a reporting mode from the configuration information, and report channel state information of the N downlink receiving ports based on the reporting mode;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

and carrying out a reporting period of reporting.

The downlink reference signal detection unit is used for acquiring the time-frequency resource corresponding to the downlink reference signal received by each group of downlink receiving ports and the receiving time information from the configuration information; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports;

For example, 32 ports of the network device are divided into two groups, a first period sends downlink reference signals to the first group of ports, and the user equipment performs measurement and reports; and the second sending period sends downlink reference signals to the second group of ports, the user equipment measures and reports the downlink reference signals, and then the network equipment obtains the channel state information of the 32 ports. Or, the ue may report the channel state information of the 32 ports at one time after completing the detection for two periods.

In addition, the 32 sending ports of the network device correspond to different downlink receiving ports in the two sending periods, and can be sent to the user equipment through the configuration information in advance; it should be further understood that the matching relationship between the transmitting and receiving ports corresponding to the two transmitting periods, and the time lighting information of each transmitting period may be transmitted to the user equipment through the configuration information.

The uplink reference signal sending unit is used for acquiring time-frequency resources corresponding to each group of uplink receiving ports for sending uplink reference signals and sending time information from the configuration information; wherein, the uplink receiving ports contained in different uplink receiving port groups are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

In addition, the 32 receiving ports of the network device correspond to different uplink receiving ports in the two receiving periods, and can be sent to the user equipment in advance through the configuration information; it should be further understood that the matching relationship between the sending and receiving ports corresponding to the two sending periods, and the time point information of each receiving period may be sent to the user equipment through the configuration information.

By adopting the scheme, each port of the user equipment can be configured to determine a downlink receiving port for receiving the downlink reference signal and an uplink sending port for sending the uplink reference signal of the user equipment; and then receiving the detected downlink port channel state information reported by the user equipment, and finally obtaining all uplink transmission of the user equipment and the channel state information of the downlink receiving port by combining the channel state information corresponding to the uplink transmitting port determined by the user equipment. Therefore, the comprehensive channel state information of the user equipment can be rapidly acquired, and the communication quality and the communication efficiency of the system are ensured.

Example V,

An embodiment of the present invention provides a computer storage medium, where a computer-executable instruction is stored in the computer storage medium, where the computer-executable instruction includes:

Here, the computer storage medium may be used for a network device, and for example, may be directly installed in the network device, or may be connected to the network device side in a wireless or wired manner; the network device may comprise a base station, a TRP or the like in a communication network capable of managing at least one user equipment.

The computer-executable instructions further comprise:

acquiring a downlink corresponding relation between at least one downlink sending port of the user equipment and a downlink receiving port of the user equipment; acquiring an uplink corresponding relation between at least one uplink receiving port of the user equipment and an uplink sending port of the user equipment;

It can be understood that, the manner of acquiring all uplink transmitting ports and downlink receiving ports of the user equipment side may be that the user equipment actively reports; or, the history information of the user equipment can be acquired; or after the network equipment initiates a request for acquiring the port information to the user equipment, the user equipment reports the port information.

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

accordingly, the computer-executable instructions further comprise:

The computer-executable instructions further comprise:

performing reciprocity processing on channel state information of N downlink receiving ports of user equipment to obtain uplink channel states corresponding to corresponding ports, obtaining uplink channel states corresponding to the ports based on uplink reference signals sent by the user equipment through M uplink sending ports, and finally obtaining all uplink channel state information of the user equipment;

and/or the presence of a gas in the gas,

receiving downlink receiving channel state information corresponding to N downlink receiving ports reported by user equipment, and then obtaining uplink channel state information of the ports based on measurement of uplink reference signals sent by the user equipment through M uplink sending ports; carrying out reciprocity processing on the uplink channel state information to obtain corresponding downlink state information; and finally, acquiring all downlink channel state information of the network equipment side.

the computer-executable instructions further comprise:

matching uplink sending ports aiming at each group of uplink receiving ports;

In addition, the present embodiment may also provide a network device, as shown in fig. 7, including a first processor, a first storage medium, and at least one first external communication interface; the first processor, the first storage medium and the first external communication interface are all connected through a bus; wherein the content of the first and second substances,

a first storage medium configured to store computer-executable instructions;

a first processor configured to execute computer-executable instructions stored on the storage medium, the computer-executable instructions comprising: sending configuration information to user equipment, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

The computer-executable instructions configured by the first processor to be executed and stored on the storage medium may further include other instructions included in the computer storage medium in this embodiment, which are not described herein again.

Example six,

The computer-executable instructions further comprise:

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

The computer-executable instructions further comprise:

In addition, the embodiment may further provide a user equipment, whose hardware structure, referring to fig. 8, may include: a second processor, a second storage medium, and at least one second external communication interface; the second processor, the second storage medium and the second external communication interface are all connected through a bus; wherein the content of the first and second substances,

a second storage medium configured to store computer-executable instructions;

a second processor configured to execute computer-executable instructions stored on the storage medium, the computer-executable instructions comprising: receiving configuration information sent by a network device, wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

The computer-executable instructions configured by the second processor to be executed and stored on the storage medium may further include other instructions included in the computer storage medium in this embodiment, which are not described herein again.

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.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

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 device (such as a mobile phone, a computer, a device, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A channel state detection method is applied to network equipment, and is characterized in that the method comprises the following steps:

sending configuration information to User Equipment (UE), wherein the configuration information at least comprises: the user equipment sends M uplink sending port information of the uplink reference signal and receives N downlink receiving port information of the downlink reference signal; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

sending downlink reference signals to N downlink receiving ports of user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain Channel State Information (CSI) of the uplink sending ports, and receiving the CSI of the N downlink receiving ports sent by the user equipment;

determining downlink channel state information of the network equipment and/or determining uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port;

the uplink reference signal comprises a Sounding Reference Signal (SRS); the M < N; the network equipment receives partial CSI reported by the user equipment, and combines the partial CSI with the SRS obtained by the measurement of the network equipment to generate all CSI, wherein the partial CSI is obtained by the measurement of the user equipment at the N downlink receiving ports;

wherein, the received N pieces of downlink receiving port information are wave beams sent by a plurality of TRPs; wherein the CSI at least comprises: CQI, the eigenvector and the eigenvalue corresponding to the eigenvector.

2. The method of claim 1, further comprising:

determining M uplink sending ports for the user equipment to send uplink reference signals and determining N downlink receiving ports for the user equipment to receive downlink reference signals based on at least one port contained in the user equipment;

3. The method of claim 2, wherein the configuration information further comprises at least one of:

4. The method of claim 2 or 3, wherein the configuration information further comprises:

a reporting mode of the user equipment;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

correspondingly, the receiving the channel state information of the N downlink receiving ports sent by the user equipment further includes:

5. The method of claim 2, further comprising:

6. The method of claim 1, wherein the configuration information further comprises: at least one group of downlink receiving ports receives time frequency resources corresponding to the downlink reference signals and receiving time information;

correspondingly, the method further comprises the following steps:

and based on the time frequency resource corresponding to the received downlink reference signal and the receiving time information, sending the downlink reference signal to each downlink receiving port in each group of downlink receiving ports according to a time division and/or frequency division mode.

7. The method of claim 1, wherein the configuration information further comprises: at least one group of uplink receiving ports receives time frequency resources corresponding to the uplink reference signals and sending time information;

correspondingly, the method further comprises the following steps:

grouping uplink receiving ports of the network equipment; wherein, the uplink receiving ports contained in different uplink receiving port groups are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

matching uplink sending ports aiming at each group of uplink receiving ports;

and receiving the uplink reference signals sent by the user equipment through different uplink receiving port groups at least once according to a time division and/or frequency division mode based on the time frequency resources corresponding to the uplink reference signals and the sending time information.

8. A channel state detection method is applied to user equipment, and is characterized in that the method comprises the following steps:

receiving downlink reference signals sent by the network equipment through the N downlink receiving ports based on the configuration information, and sending Channel State Information (CSI) of the N downlink receiving ports to the network equipment;

based on the configuration information, sending uplink reference signals to the network equipment through M uplink sending ports;

the uplink reference signal comprises a Sounding Reference Signal (SRS); the M < N; the UE measures partial CSI obtained at the N downlink receiving ports and reports the partial CSI so that the network equipment combines the partial CSI with the SRS obtained by the network equipment to generate all CSI;

9. The method of claim 8, wherein the transmitting uplink reference signals to the network device through M uplink transmit ports based on the configuration information, further comprises:

acquiring indication information of time-frequency resources occupied by uplink reference signals and/or time-frequency resources occupied by downlink reference signals and indication information of sending periods of the uplink reference signals and/or the downlink reference signals from the configuration information; sending uplink reference signals to the network equipment through M uplink sending ports based on time-frequency resources occupied by the uplink reference signals in the configuration information and sending cycle indication information of the uplink reference signals;

acquiring indication information of time-frequency resources occupied by uplink reference signals and/or time-frequency resources occupied by downlink reference signals and indication information of sending periods of the uplink reference signals and/or the downlink reference signals from the configuration information; and receiving the downlink reference signals transmitted by the network equipment through the N downlink receiving ports based on the time-frequency resources occupied by the downlink reference signals in the configuration information and the transmission cycle indication information of the downlink reference signals.

10. The method of claim 9, further comprising:

acquiring a reporting mode from the configuration information, and reporting the measured channel state information of the N downlink receiving ports based on the reporting mode;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

and carrying out a reporting period of reporting.

11. The method of claim 8, wherein the receiving downlink reference signals sent by a network device through N downlink receiving ports based on the configuration information comprises:

12. The method of claim 8, wherein the transmitting uplink reference signals to the network device through M uplink transmit ports based on the configuration information, further comprises:

acquiring time-frequency resources corresponding to the uplink reference signals sent by each group of uplink receiving ports and sending time information from the configuration information; wherein, the uplink receiving ports contained in different uplink receiving port groups are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

13. A network device, comprising:

a configuration sending unit, configured to send configuration information to a user equipment, where the configuration information at least includes: user Equipment (UE) sends M uplink sending port information of uplink reference signals and N downlink receiving port information of downlink reference signals; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a state obtaining unit, configured to measure the uplink reference signal to obtain channel state information CSI of an uplink sending port, and receive channel state information CSI of N downlink receiving ports sent by the user equipment;

a processing unit, configured to determine downlink channel state information of the network device and/or determine uplink channel state information of the user equipment based on the channel state information of the uplink sending port and the downlink receiving port;

the uplink reference signal comprises a Sounding Reference Signal (SRS); the M < N; the network device is further configured to receive a partial CSI reported by the user equipment and combine the partial CSI with the SRS measured by the network device to generate a complete CSI, where the partial CSI is measured by the user equipment at the N downlink receiving ports;

14. The network device according to claim 13, wherein the configuration sending unit is configured to determine, based on at least one port included in the ue, M uplink sending ports where the ue performs uplink reference signal sending, and determine N downlink receiving ports where the ue performs downlink reference signal receiving; generating configuration information based at least on the M uplink transmit ports transmitting uplink reference signals and the N downlink receive ports receiving downlink reference signals.

15. The network device of claim 14, wherein the configuration information further comprises at least one of:

16. The network device of claim 14 or 15, wherein the configuration information further comprises: a reporting mode of the user equipment;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

a reporting period for reporting;

17. The network device according to claim 14, wherein the configuration sending unit is configured to obtain a downlink correspondence between at least one downlink sending port of the configuration sending unit and a downlink receiving port of the user equipment; acquiring an uplink corresponding relation between at least one uplink receiving port of the user equipment and an uplink sending port of the user equipment;

18. The network device of claim 14, wherein the configuration information further comprises: at least one group of downlink receiving ports receives time frequency resources corresponding to the downlink reference signals and receiving time information;

the configuration sending unit is configured to group downlink receiving ports of the user equipment; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports; matching downlink transmitting ports aiming at each group of downlink receiving ports; the downlink receiving ports matched with the same downlink sending port in different downlink receiving port groups are the same or different;

correspondingly, the reference signal sending unit is configured to send downlink reference signals to each downlink receiving port in each group of downlink receiving ports according to a time division and/or frequency division manner based on the time-frequency resource and the receiving time information corresponding to the received downlink reference signals.

19. The network device of claim 14, wherein the configuration information further comprises: at least one group of uplink receiving ports receives time frequency resources corresponding to the uplink reference signals and sending time information;

the configuration sending unit is configured to group uplink receiving ports of the network device; wherein, the uplink receiving ports contained in different uplink receiving ports are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment;

correspondingly, the reference signal receiving unit is configured to receive, based on the time-frequency resource and the sending time information corresponding to the uplink reference signal, the uplink reference signal sent by the user equipment through different uplink receiving port groups in a time division and/or frequency division manner.

20. A user device, comprising:

a configuration receiving unit, configured to receive configuration information sent by a network device, where the configuration information at least includes: user Equipment (UE) sends M uplink sending port information of uplink reference signals and N downlink receiving port information of downlink reference signals; the N downlink receiving ports of the user equipment are at least partially different from the M uplink sending ports of the user equipment, and all wireless ports of the user equipment are contained in a port set consisting of the N downlink receiving ports and the M uplink sending ports; the wireless port is a port with an uplink sending function and/or a downlink receiving function; n and M are integers greater than 0;

a downlink reference signal detection unit, configured to receive, through the N downlink receiving ports, a downlink reference signal sent by the network device based on the configuration information, and send channel state information CSI of the N downlink receiving ports to the network device;

an uplink reference signal sending unit, configured to send, based on the configuration information, an uplink reference signal to the network device through M uplink sending ports;

the uplink reference signal comprises a Sounding Reference Signal (SRS); the M < N; the user equipment is further configured to obtain partial CSI through measurement at the N downlink receiving ports and report the partial CSI, so that the network equipment combines the partial CSI with the SRS obtained through measurement by the network equipment to generate all CSI;

21. The ue according to claim 20, wherein the uplink reference signal sending unit is configured to obtain, from the configuration information, indication information of time-frequency resources occupied by uplink reference signals and/or time-frequency resources occupied by downlink reference signals, and indication information of sending periods of uplink reference signals and/or downlink reference signals; sending uplink reference signals to the network equipment through M uplink sending ports based on time-frequency resources occupied by the uplink reference signals in the configuration information and sending cycle indication information of the uplink reference signals;

correspondingly, the downlink reference signal detection unit is configured to obtain, from the configuration information, indication information of a time-frequency resource occupied by an uplink reference signal and/or a time-frequency resource occupied by a downlink reference signal, and transmission cycle indication information of the uplink reference signal and/or the downlink reference signal; and receiving the downlink reference signals transmitted by the network equipment through the N downlink receiving ports based on the time-frequency resources occupied by the downlink reference signals in the configuration information and the transmission cycle indication information of the downlink reference signals.

22. The user equipment of claim 21, wherein the user equipment further comprises:

a reporting unit, configured to acquire a reporting mode from the configuration information, and report, based on the reporting mode, channel state information of the N downlink receiving ports obtained through measurement;

wherein, the reporting mode includes at least one of the following modes:

reporting the resource position;

the information type to be reported;

and carrying out a reporting period of reporting.

23. The ue of claim 20, wherein the downlink reference signal detecting unit is configured to obtain, from configuration information, time-frequency resources and receiving time information corresponding to downlink reference signals received by each group of downlink receiving ports; wherein, the downlink receiving ports contained in different downlink receiving port groups are at least partially different; and all downlink receiving port groups cover the N downlink receiving ports; and receiving the downlink reference signals sent by the network equipment at least once through each group of downlink receiving ports based on the time-frequency resources corresponding to the received downlink reference signals and the receiving time information.

24. The ue of claim 20, wherein the uplink reference signal sending unit is configured to obtain, from configuration information, time-frequency resources and sending time information corresponding to sending uplink reference signals by each group of uplink receiving ports; wherein, the uplink receiving ports contained in different uplink receiving port groups are at least partially different; all uplink receiving port groups cover all uplink receiving ports of the network equipment; and sending the uplink reference signal to an uplink receiving port corresponding to the network equipment through different uplink receiving port groups at least once based on the time-frequency resource corresponding to the uplink reference signal and the sending time information.