WO2020057383A1

WO2020057383A1 - Data transmission method and device

Info

Publication number: WO2020057383A1
Application number: PCT/CN2019/104825
Authority: WO
Inventors: 刘显达; 刘鹍鹏; 张荻
Original assignee: 华为技术有限公司
Priority date: 2018-09-18
Filing date: 2019-09-09
Publication date: 2020-03-26
Also published as: CN110912665A; CN110912665B

Abstract

Provided by the present application are a transmission method and device, the method comprising: measuring reference signals of multiple receiving beams by means of a mobile terminal; determining at least one first resource from multiple reference signal resources, the first resources corresponding to first receiving beams; reporting to a base station a measurement result determined according to the multiple reference signal resources, and reporting the measurement result; and reporting quantity information or identification information of the first receiving beams, or quantity information or identification information of antenna panels used by the first receiving beams, so that when a channel reciprocity is established and a transmitting beam configured for SRS resources which are for uplink channel measurement is configured to be the same as a receiving beam for a first resource, the base station may determine the time-frequency resource position of an SRS resource for uplink channel measurement and the number of configured SRS resources, thereby improving the efficiency of uplink channel estimation and the transmission performance of uplink data.

Description

Method and device for data transmission

This application claims priority from a Chinese patent application filed on September 18, 2018 with the Chinese Patent Office, application number 201811090107.4, and application name "Method and Device for Data Transmission", the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of communications, and more particularly, to a method and device for data transmission.

Background technique

In the uplink transmission process, including codebook-based uplink transmission and non-codebook-based uplink transmission, during data transmission, when channel reciprocity is established, downlink channel measurement can be used to determine uplink channel state information. Taking uplink transmission between a terminal device and a base station as an example, firstly, downlink beam training is required. The terminal device needs to report the index information of the optimal transmit and receive beams and the corresponding receiving status information to determine the optimal downlink transmit and receive beams. Use the channel reciprocity to directly determine the optimal uplink transmit and receive beams.

Specifically, the base station configures multiple channel state information reference signal (CSI-RS) resources, and each CSI-RS resource corresponds to at least one receiving beam or antenna panel of a terminal device. -The RS resources use different transmit beams to send CSI-RSs to scan the transmit beams, and the terminal device may also use different receive beams on the multiple CSI-RS resources to receive CSI-RSs to scan the receive beams. The terminal device reports the corresponding measurement results according to the measurement results of the received CSI-RS. Using the channel reciprocity, the base station can obtain the optimal transmission beam information according to the measurement results, that is, by reporting the IDs of some CSI-RSs and the corresponding Signal measurement parameters complete the training of the optimal transmit and receive beams, thereby determining the optimal transmit and receive beams.

However, since the measurement parameter corresponding to the CSI-RS resource with the highest measurement parameter reported by the terminal device during the beam training process does not carry the receiving beam information of the terminal device or the information of the antenna panel, the base station does not know the correspondence of each CSI-RS resource The number of receiving beams or antenna panels, the base station cannot determine the optimal transmission beam for the terminal device to configure the uplink reference signal, and can only configure the time division multiplexed uplink reference signal resource, which affects the uplink transmission performance.

Therefore, a transmission method is urgently needed, so that the base station can determine the transmission beam information of the uplink reference signal resource, and the position and number of time-frequency resources, thereby ensuring the reliability of the uplink transmission of the terminal equipment and the base station and improving the transmission performance.

Summary of the Invention

The application provides a transmission method and a transmission device, which can accurately configure the position and number of time-frequency resources of a terminal device, and configure uplink transmission of the terminal device to improve transmission performance.

According to a first aspect, a transmission method is provided, including: determining reception state information of a reference signal carried on each first resource in at least one first resource, where each first resource corresponds to a first receiving beam, and the first The receiving beam includes at least one receiving beam; sending information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource.

Through the transmission method provided by the foregoing technical solution, the terminal device informs the base station of the receiving status information corresponding to each first resource, the number of receiving beams used to receive the reference signal on the first resource, or receiving the reference signal on the first resource. The quantity information of the antenna panel is used, so that the base station determines the time-frequency resource location, the number of resources of the uplink reference signal resource associated with the first resource, and the transmission beam used to send the uplink reference signal on the uplink reference signal resource. Therefore, it is ensured that the terminal device sends the uplink reference signal by using the transmission beam with the best transmission quality and the uplink reference signal resource, and performs subsequent uplink data transmission, so as to improve the reliability of uplink transmission between the terminal device and the base station and improve transmission performance.

It should be understood that, in the description of the embodiment of the present application, the reference signal resource that the terminal device determines from the multiple reference signal resources configured by the base station through high-level signaling to determine that the reception status information meets a preset condition is the first resource, which can be understood as The first resource is already the resource with the best transmission quality determined by the terminal device, and there may be one or more first resources.

It should also be understood that the reception status information of the reference signal resource in the embodiments of the present application may refer to a quantized value of the reception status information. For example, the measurement parameters of the reference signal resource are used to indicate the reception status information, and the terminal device measures the reference signals received on the received multiple reference signal resources to obtain the measurement parameters of the reference signal resource. The preset condition here may be that the terminal device determines that the measurement parameter is greater than or equal to a preset threshold according to the measurement parameter of the reference signal resource, and determines such a reference signal resource as a resource with the best transmission quality or a resource with the best reception status. . That is, in this application, a reference signal resource whose quantization value of the reception status information is greater than or equal to a preset threshold is determined as the first resource, or for multiple reference signal resources, the terminal device maximizes the quantization value of the reception status information. A certain or the largest first plurality of reference signal resources are determined as the first resources, and the number of the first resources with the best transmission quality is not limited in this application.

It should also be understood that the reception status information in this application may characterize the signal reception quality or communication quality of the receiving beam or antenna panel used by the terminal device to receive the reference signal, or the channel transmission quality of the received reference signal. Specifically, in the embodiment of the present application, any one of the received signal RSRP or the signal-to-noise and interference ratio SINR or the signal-to-noise ratio SNR or the reference signal received quality RSRQ, or the received signal strength RSSI may be used as the reception status information. The reception status information is usually expressed as a quantized value.

It should also be understood that the downlink reference signal transmitted on multiple resources may be a CSI-RS, a synchronization signal block SSB, a demodulation reference signal (DMRS), or a tracking reference signal TRS. In the embodiment of the present application, the downlink reference signal is described by taking the CSI-RS as an example, that is, the optimal CSI-RS resource introduced in the present application is the optimal first resource.

In addition, in the present application, the first resource refers to a resource that the terminal device has determined from multiple resources to have the best communication quality, and a receiving beam used to receive a reference signal on the first resource is referred to as a first resource. A receiving beam. The first receiving beam may include one receiving beam corresponding to one antenna panel, or N receiving beams corresponding to N antenna panels.

It should also be understood that the number of first resources may be one or more. Taking one first resource as an example, when a terminal device actually receives a reference signal carried on the first resource, it uses N receive beams or N antenna panels. . Optionally, the N receiving beams corresponding to the first resource may form a first receiving beam, that is, the quantity information of the N receiving beams is reported to the base station by the terminal device; or the terminal device selects K from the N beams Beam, then the first receiving beam corresponding to the first resource is composed of the K receiving beams, that is, the number information of the K beams is reported to the base station by the terminal device, where K is a positive integer greater than or equal to 1, and N is A positive integer greater than or equal to K.

With reference to the first aspect, in some implementations of the first aspect, the quantity information of the first receiving beam includes a quantity of receiving beams included in the first receiving beam or an identifier of a receiving beam included in the first receiving beam. The information, or the number of the first received beams includes the number or identification information of the antenna panel used to receive the reference signal.

It should be understood that, in the embodiment of the present application, each receiving beam of each CSI-RS resource (first resource) corresponds to a different antenna panel of the terminal device. It can be understood that only the antenna panel 1 is used to receive the same CSI-RS resource. One of the receive beams. If the receiving beam of a CSI-RS resource includes N beams, the N beams must correspond to N antenna panels.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is a quantity K or identification information of K receiving beams included in the first receiving beam, or the reference signal is received The number of antenna panels used is K, or the identification information of K antenna panels used to receive the reference signal, where K is a positive integer greater than or equal to 1, the method further includes: when the first receiving beam includes a receiving beam or receiving When the reference signal uses an antenna panel, determine that K is 1; when the first receiving beam includes multiple receiving beams, determine the value of K according to the receiving status information of the multiple receiving beams included in the first receiving beam, or When multiple antenna panels are used to receive the reference signal, the value of K is determined according to the reception status information of the multiple antenna panels.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is the quantity K or identification information of the K receiving beams included in the first receiving beam, and the The reception status information is determined according to the reception status information of the K reception beams in the first reception beam; or, the number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource is based on the K The reception status information of each antenna panel is determined, and K is a positive integer greater than or equal to 1.

For example, when the terminal device reports K reception beams of a CSI-RS resource to the base station, the measurement information of the one CSI-RS resource may be determined by a sum operation of the K measurement information of the K reception beams; and / or The receiving beam of each CSI-RS resource corresponds to the K antenna panels of the terminal device beam. The measurement information of each CSI-RS resource is determined by the sum of the K measurement information of the K antenna panels.

Or, when the terminal device reports the reception beam of a CSI-RS resource to the base station including the K reception beams of the terminal device, the measurement information of the one CSI-RS resource is calculated by averaging the K measurement information of the K reception beams. Determined by the method; and / or the receiving beam of each CSI-RS resource corresponds to K antenna panels of the terminal device beam, and the measurement information of each CSI-RS resource is an average of the K measurement information of the K antenna panels The method of operation is determined.

It should be understood that the content reported by the above-mentioned several types of terminal devices, for example, the number of first receiving beams corresponding to the first resource and the reception status information of the first resource reported to the base station are determined based on the same K receiving beams.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource includes the first receiving beam The K reception status information corresponding to the K reception beams in the K and the number of first reception beams corresponding to each first resource and the reception status information of a reference signal carried on each first resource include: Sending K receiving status information corresponding to the K receiving beams; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels in the plurality of antenna panels, and the first information corresponding to each of the first resources is sent. The number of received beams and the reception status information of the reference signal carried on each of the first resources include: sending K reception status information of the K antenna panels.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the K receiving beams correspond to K receiving status information, and any two of the K receiving status information of the K receiving beams are The difference is less than or equal to the first threshold, and / or the difference between any two of the K reception status information of the K antenna panels is less than or equal to the first threshold; or K of the K reception beams The ratio of any two reception status information in the reception status information is less than or equal to the second threshold, and / or the ratio of any two reception status information in the K reception status information of the K antenna panels is less than or equal to the second threshold ; Or the difference between the maximum reception status information and the minimum reception status information in the K reception status information of the K reception beams is less than or equal to a third threshold, and / or in the K reception status information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, when the first receiving beam includes N receiving beams, and N is a positive integer greater than K, the K receiving states of the K receiving beams The difference between the reception status information of any one of the information and the reception status information of any one of the N reception beams except for the K reception beams is greater than the fourth threshold, and / or the K The difference between the reception status information of any of the K reception status information of each antenna panel and the reception status information of any one of the NK antenna panels other than the K antenna panels of the N antenna panels is greater than Four thresholds; or

The ratio of the reception status information of any one of the K reception status information of the K reception beams to the reception status information of any one of the NK reception beams of the N reception beams other than the K reception beams is greater than A fifth threshold, and / or any one of the K reception status information of the K antenna panels and any one of the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of the received status information is greater than the fifth threshold; or

The difference between the maximum reception status information of the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams of the N reception beams other than the K reception beams is greater than The sixth threshold, and / or the maximum reception state information of the K reception state information of the K antenna panels and the maximum reception state information of any of the NK antenna panels other than the K antenna panels of the N antenna panels; The difference between the received status information is greater than the sixth threshold.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the first report configuration information is received, and the first report configuration information is used to indicate a number of bits for reporting the number information of the first received beam, or Indicates the maximum value of the number of the first received beams to be reported, or indicates the number of bits used to report the reception status information.

It should be understood that, in the above implementation manner, for each reported CSI-RS resource, the terminal device reports only one reception status information corresponding to the CSI-RS resource, and the reception status information may be a quantized value and a reporting form It can be X bits, X bits correspond to a quantization value interval, each state value of X bits corresponds to a specific quantization value in the quantization value interval, and the encoding of X bits is based on the CSI-RS of the terminal device through The reception status information determined by the resource measurement is determined.

In addition, the terminal device needs to report the measurement information of the first resource, and the resource of the measurement information can be reported through the resource indicated by the first reporting configuration information, such as the resource configured by high-level signaling, where the high-level signaling can be RRC signaling or MAC CE signaling, high-level signaling can configure multiple reporting configuration sets, multiple reference signal resources are associated with the same reporting configuration set, and the reporting configuration set contains the measurement parameter information that needs to be reported.

For example, if the base station indicates that the maximum amount of information is L through the first reporting configuration information, it indicates that the terminal device reports the number of receiving beams corresponding to each first resource or the number of antenna panels used for reporting. Each state value Corresponding to the number of receiving beams or antenna panels used to receive the first resource, the correspondence between specific status values and quantity information can be defined in advance.

Specifically, the maximum quantity information may be determined according to the number of antenna panels supported by the terminal device or the number of beams used for data reception at the same time, and the value of L is not greater than the number of antenna panels or received beams reported by the terminal device. Taking the number of antenna panels supported by the terminal device as an example, the base station can configure the reported number of bits to be 2 bits. When the status value corresponding to a first resource reported by the terminal device is 00, it indicates that the number of receiving beams currently receiving the first resource is 1; the status value corresponding to a reported first resource is 01, indicating that the first resource is currently received. The number of received beams of the resource is 2; when the status value of a reported first resource is 10, it indicates that the number of received beams currently receiving the first resource is 3; the status value of a reported first resource is At 11:00, it indicates that the number of receiving beams currently receiving the first resource is four. When L takes other values, a similar reporting method may be adopted. It should be understood that this application includes but is not limited to this.

Alternatively, the maximum quantity information L may also be determined according to the number of SRS resource sets supported by the terminal device for beam training, and the value of L is not greater than the number of SRS resource sets reported by the terminal device for beam training. The report information in the beam training is Log ₂ L bits, and each bit value corresponds to a number of SRS resource sets; or, if the terminal device reports the number of RS resources that it can transmit simultaneously and each RS resource corresponds to a different When the uplink beam is L, or when the number of RS resources that the terminal device can receive simultaneously and each RS resource corresponds to a different downlink beam is L, the reported information in the beam training may be Log ₂ L bits. For the specific instruction process, refer to the above examples, which will not be repeated one by one here.

Or, if the base station indicates the number of bits used to report the reception status information by using the first report configuration information, the number of bits required to report the reception status information of the first receive beam may be combined to determine the maximum reportable receive beam. Quantity, the receiving status information of each receiving beam may be in the form of an absolute quantization value, or in the form of a relative quantization value.

Specifically, when an absolute quantization value is used, the number of bits corresponding to each reception status information is the same. When a relative quantization value is used, a certain reception status information is in the form of an absolute quantization value, and the rest of the reception status information is relative to The difference between the absolute quantization values can reduce the number of feedback bits compared to the absolute quantization values.

For example, the terminal device determines that the maximum number of reportable receive beams is L, and L is based on the number of bits used to report the reception status information indicated by the first report configuration information, and combines the values corresponding to each receive beam corresponding to each first resource. The number of bits required to receive status information is determined. Taking all absolute quantization values as an example, the total number of reported bits at this time is L * m, where m is the number of reported bits of reception status information corresponding to each receiving beam, and each state value of m bits corresponds to a reception state Quantitative value of the information. For example, if the number of antenna panels supported by the terminal device is 4 and each reception status information is 2 bits, for example, the base station can configure the number of reported bits to be 8 bits. For example, a first resource reported by the terminal device The corresponding status value of 00000000-00000011 indicates that the number of receiving beams currently receiving the first resource is 1; the status value of 00000100-00001111 indicates that the number of receiving beams currently receiving the first resource is 2; and a certain first reported by the terminal device The status value corresponding to the resource is 00010000-00111111, indicating that the number of receiving beams currently receiving the first resource is 3; the status value being 01000000-00001111 indicates that the number of receiving beams currently receiving the first resource is 4.

Or, the terminal device may further report the number of received beams.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, when the number of the first resources is M and M is a positive integer greater than or equal to 2, the method further includes: sending the M first Identification information of the at least one first resource among the resources.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the method further includes: determining first indication information, where the first indication information is used to instruct reception of receiving reference signals carried on M first resources Whether the beam can be used for uplink transmission at the same time; and sending the first indication information.

For example, when a terminal device reports RSRPs corresponding to multiple CSI-RS resources, the base station needs to know whether multiple CSI-RS resources can be received simultaneously, that is, whether multiple CSI-RS receive beams can be used for uplink transmission at the same time.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the reception status information is reference signal received power RSRP or signal noise to interference ratio SINR or signal to noise ratio SNR or reference signal received quality RSRQ or received signal strength RSSI Any of them.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the first receiving beam is used for uplink transmission.

With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, the antenna panel is in an activated state. The above has introduced in detail the correspondence between the terminal equipment to inform the base station of the corresponding reception beams corresponding to the CSI-RS and the antenna panel of the terminal equipment, so as to determine the time-frequency resource locations where multiple SRS resources are configured, the number of SRS resources, and the corresponding terminal equipment. The method of transmitting the SRS, thereby ensuring that the terminal equipment uses the correct transmission beam to transmit the SRS or perform uplink transmission, and the base station can use the corresponding receiving beam to receive the SRS and the uplink transmitted data or signal, thereby improving transmission performance.

According to a second aspect, a transmission method is provided, including: when a terminal device generates a first message under a first preset condition, the first message is used to trigger the terminal device to send a first uplink reference signal; and sending the first message, The first preset condition includes: an uplink beam used by the terminal device to send a second uplink reference signal is configured as a resource identifier of a downlink reference signal, and the second uplink reference signal is used for channel measurement; and / or the terminal device The number of receiving beams receiving the downlink reference signal or the number of antenna panels used to receive the downlink reference signal is greater than 1; and / or any of multiple receiving status information corresponding to multiple receiving beams of the terminal device receiving the downlink reference signal The difference between the two reception status information is less than or equal to the first threshold, or between any two reception status information among multiple reception status information corresponding to multiple antenna panels used by the terminal device to receive the downlink reference signal The difference is less than or equal to the first threshold.

It should be understood that the first uplink reference signal is a reference signal used for uplink beam training, and the second uplink reference signal is used for channel measurement. Therefore, the first uplink reference signal and the second uplink reference signal can be configured. For the same reference signal or different reference signals, this application is not limited thereto.

Through the above technical solution, the terminal device can trigger the base station to perform uplink beam training, so that the base station can determine accurate uplink transmission beam information and corresponding uplink resources and uplink transmission configuration information, that is, determine the time-frequency resource location for configuring multiple uplink resource resources. , The number of uplink resources, and the corresponding terminal device's method for sending uplink resources, so as to ensure that the terminal device uses the transmission beam with the best transmission quality to send the reference signal or perform uplink transmission, and the base station can use the corresponding receiving beam to receive the reference signal and the uplink Data transmitted to improve transmission performance.

With reference to the second aspect, in some possible implementation manners, the terminal device generates a second message according to the number of receiving beams or the number of antenna panels used to receive the downlink reference signal, and the second message is used to indicate that the Sending quantity information of first uplink reference signal resources of the first uplink reference signal and / or sending beam information; and sending the second message.

For example, the terminal device may also notify the base station of the number of first uplink reference signal resources that triggers uplink beam training and the corresponding transmit beams, where the number of first uplink reference signals may be the terminal device ’s configuration for codebook transmission / use. The number of identification information of the first resource transmitted in a non-codebook, or the number of receiving antenna panels corresponding to each first resource is determined.

Specifically, according to the configuration information reported by the base station, the number of identification information of the first resource reported by the terminal device is two, and the number of receiving antenna panels corresponding to each first resource is two, the terminal device notifies the base station to perform uplink beam training. The number of first uplink reference signal resources is 4, and the first uplink reference signals on the four first uplink reference signal resources are respectively sent by receiving four receive beams corresponding to the two first resources, then the base station also knows that the corresponding The beam receiving the first resource receives a first uplink reference signal. Among them, since the identification information of the same first resource corresponds to multiple transmission times regardless of periodic transmission or non-periodic triggering, and the transmitting and receiving beams used at each transmission time may be different, the identification information of the first resource corresponds to notifying the base station to trigger an uplink. Beam training Receive beam used for the most recent CSI-RS resource transmission.

With reference to the second aspect and the foregoing implementation manners, in some possible implementation manners, the first message is a scheduling request message sent by the terminal device.

With reference to the second aspect and the foregoing implementation manners, in some possible implementation manners, the first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.

According to a third aspect, a transmission method is provided, including: sending a reference signal through at least one first resource, the reference signal being carried on multiple resources, each first resource corresponding to a first receiving beam of a terminal device, the first The receiving beam includes at least one receiving beam; receiving quantity information of the first receiving beam and receiving state information of a reference signal carried on each first resource; and determining the first receiving beam and the first resource.

With reference to the third aspect, in some possible implementation manners, the quantity information of the first receiving beam includes a quantity of receiving beams included in the first receiving beam or identification information of receiving beams included in the first receiving beam, Or, the quantity information of the first receiving beam includes quantity or identification information of an antenna panel used to receive the reference signal.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource is based on the first receiving The receiving status information of the K receiving beams in the beam is determined; or, the number of antenna panels used to receive the reference signal is K, and the receiving status information of the first resource is determined according to the receiving status information of the K antenna panels. , K is a positive integer greater than or equal to 1.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource includes the first receiving beam The K reception status information of the K reception beams, the number of received first reception beams, and the reception status information of the reference signal carried on each of the first resources include: receiving K corresponding to the K reception beams Receiving status information; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, as well as the number of received first reception beams and the number of each The reception status information of the reference signals carried on the first resources includes: receiving the number information K of the antenna panels and K reception status information of the K antenna panels.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the K reception beams correspond to K reception state information, and any two of the K reception state information of the K reception beams are The difference is less than or equal to the first threshold, and / or the difference between any two of the K reception status information of the K antenna panels is less than or equal to the first threshold; or K of the K reception beams The ratio of any two reception status information in the reception status information is less than or equal to the second threshold, and / or the ratio of any two reception status information in the K reception status information of the K antenna panels is less than or equal to the second threshold ; Or the difference between the maximum reception status information and the minimum reception status information in the K reception status information of the K reception beams is less than or equal to a third threshold, and / or in the K reception status information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, when the first receiving beam includes N receiving beams, and N is a positive integer greater than K, the K receiving states of the K receiving beams The difference between the reception status information of any one of the information and the reception status information of any one of the N reception beams other than the K reception beams other than K reception beams is greater than the fourth threshold, and / or the K The difference between the reception status information of any of the K reception status information of the antenna panel and the reception status information of any one of the NK antenna panels other than the K antenna panels of the N antenna panels is greater than the fourth Threshold; or

The ratio of the reception status information of any one of the K reception status information of the K reception beams to the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams is greater than Five thresholds, and / or any one of the K receiving status information of the K antenna panels and the receiving status information of any one of the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of received status information is greater than the fifth threshold; or

The difference between the maximum reception status information of the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams is greater than the Six thresholds, and / or the maximum reception status information of the K reception status information of the K antenna panels and the reception of any one of the NK antenna panels other than the K antenna panels of the N antenna panels The difference in status information is greater than the sixth threshold.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the method further includes: sending first reporting configuration information, where the first reporting configuration information is used to indicate a bit that reports the quantity information of the first receiving beam Or the number of bits used to instruct the terminal device to report the maximum number of the first reception beams contained in the number information of the first reception beams or the number of bits to report the reception status information.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, when the number of the first resources is M and M is a positive integer greater than or equal to 2, the method further includes: receiving the M first Identification information of the at least one first resource among the resources.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the method further includes: receiving first indication information and first indication information, where the first indication information is used to instruct receiving M bearers on the first resource Whether the received beam of the reference signal can be used for uplink transmission at the same time.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the reception status information is any one of a reference signal received power RSRP or a signal noise interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ .

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the first receiving beam is used for uplink transmission.

With reference to the third aspect and the foregoing implementation manners, in some possible implementation manners, the antenna panel is in an activated state.

According to a fourth aspect, a transmission method is provided, including: receiving a first message that is used to instruct a terminal device to send an uplink reference signal; and generating downlink control information DCI that is used to instruct the terminal device to send the uplink reference The first uplink resource of the signal; sending the DCI.

With reference to the fourth aspect, in some possible implementation manners, the method further includes: receiving a second message, where the second message is used to indicate the first uplink resource information and uplink beam information, and the first uplink resource information includes a first The number of a resource and the number of receiving beams or corresponding antenna panels that receive the first resource. The first resource is a resource of a plurality of resources used to carry a downlink reference signal that meets a predetermined communication quality.

With reference to the fourth aspect and the foregoing implementation manners, in some possible implementation manners, the first message is a scheduling request message sent by the terminal device.

With reference to the fourth aspect and the foregoing implementation manners, in some possible implementation manners, the final first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.

According to a fifth aspect, a transmission device is provided, including: a processing unit, configured to determine reception status information of a reference signal carried on each first resource in at least one first resource, each first resource corresponding to the first reception Beam, the first receiving beam includes at least one receiving beam; the communication unit sends information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource.

With reference to the fifth aspect, in some possible implementation manners, the quantity information of the first receiving beam includes a quantity of receiving beams included in the first receiving beam or identification information of receiving beams included in the first receiving beam, Or, the quantity information of the first receiving beam includes quantity or identification information of an antenna panel used to receive the reference signal.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is a quantity K or K pieces of the identification information, and K is an integer greater than or equal to 1, and the processing unit further uses Yu: when the first receiving beam includes a receiving beam or using an antenna panel to receive the reference signal, determine that K is 1; when the first receiving beam includes a plurality of receiving beams, according to the The value of K is determined by the reception status information of multiple receive beams, or is determined by the reception status information of the multiple antenna panels when multiple antenna panels are used to receive the reference signal.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource is based on the first receiving The receiving status information of the K receiving beams in the beam is determined; or, the number of antenna panels used to receive the reference signal is K, and the receiving status information of the first resource is determined according to the receiving status information of the K antenna panels. , K is a positive integer greater than or equal to 1.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource includes the first receiving beam K reception status information of K reception beams in the, and the communication unit is further configured to: send the K reception status information; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, and the communication unit is further configured to: send the antenna panels The number information K and K reception status information of the K antenna panels.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the K reception beams correspond to K reception state information, and the difference between any two reception state information of the K reception state information of the K reception beams The value is less than or equal to the first threshold, and / or the difference between any two of the K reception status information of the K antenna panels is less than or equal to the first threshold; or

The ratio of any two reception status information of the K reception status information of the K reception beams is less than or equal to the second threshold, and / or any two reception status information of the K reception status information of the K antenna panels Is less than or equal to the second threshold; or

The difference between the maximum reception status information and the minimum reception status information in the K reception status information of the K reception beams is less than or equal to the third threshold, and / or the largest of the K reception status information of the K antenna panels. The difference between the reception status information and the minimum reception status information is less than or equal to the third threshold.

With reference to the fifth aspect and the foregoing implementation manner, when the first receiving beam includes N receiving beams, and N is a positive integer greater than K, any one of the receiving state information of the K receiving state information of the K receiving beams and The difference between the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams is greater than a fourth threshold, and / or K reception status information of the K antenna panels The difference between the reception status information of any one of the antenna status panels and the reception status information of any one of the NK antenna panels other than the K antenna panels of the N antenna panels is greater than the fourth threshold; or

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the communication unit is further configured to: receive first reporting configuration information, where the first reporting configuration information is used to indicate information about reporting the number of the first receiving beam The number of bits is used to indicate the maximum value of the number of the first receiving beams to be reported, or the number of bits used to report the reception status information.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, when the number of the first resources is M and M is a positive integer greater than or equal to 2, the communication unit is further configured to: send the M number of Identification information of the at least one first resource in the first resource.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the processing unit is further configured to determine first indication information, where the first indication information is used to instruct to receive reference signals carried on M first resources Whether the receiving beams of the MIMO receiver can be used for uplink transmission at the same time; the communication unit is further configured to: send the first indication information.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the reception status information is any one of a reference signal received power RSRP or a signal noise to interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ .

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the first receiving beam is used for uplink transmission.

With reference to the fifth aspect and the foregoing implementation manners, in some possible implementation manners, the antenna panel is in an activated state.

According to a sixth aspect, a transmission device is provided, including: a processing unit configured to generate a first message when the first preset condition is used, the first message being used to trigger a terminal device to send a first uplink reference signal; a communication unit, Configured to send the first message, the first preset condition includes: an uplink beam used by the terminal device to send a second uplink reference signal is configured as a resource identifier of a downlink reference signal, and the second uplink reference signal is used to perform a channel Measurement; and / or the number of receive beams of the downlink reference signal received by the terminal device or the number of antenna panels used to receive the downlink reference signal is greater than 1; and / or the plurality of receive beams of the terminal device receiving the downlink reference signal corresponds The difference between any two of the plurality of reception status information is less than or equal to the first threshold, or among the plurality of reception status information corresponding to multiple antenna panels used by the terminal device to receive the downlink reference signal The difference between any two received status information is less than or equal to the first threshold.

With reference to the sixth aspect, in some possible implementation manners, the processing unit is further configured to generate a second message according to the number of the receiving beams or the number of antenna panels used to receive the downlink reference signal, and the second message is used for The information indicating the quantity of the first uplink reference signal resource carrying the first uplink reference signal and / or the transmission beam information; the communication unit is further configured to: send the second message.

With reference to the sixth aspect and the foregoing implementation manners, in some possible implementation manners, the first message is a scheduling request message sent by the terminal device.

With reference to the sixth aspect and the foregoing implementation manners, in some possible implementation manners, the first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.

According to a seventh aspect, a transmission device is provided, including: a communication unit, configured to send a reference signal through at least one first resource, where the reference signal is carried on multiple resources, and each first resource corresponds to a first reception of a terminal device. Beam, the first receiving beam includes at least one receiving beam; the communication unit is further configured to receive information about the number of first receiving beams and receiving status information of a reference signal carried on each first resource; a processing unit, configured to: Determining the first receiving beam and the first resource.

With reference to the seventh aspect, in some possible implementation manners, the quantity information of the first receiving beam includes a quantity of receiving beams included in the first receiving beam or identification information of receiving beams included in the first receiving beam, Or, the quantity information of the first receiving beam includes quantity or identification information of an antenna panel used to receive the reference signal.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource is based on the first receiving The receiving status information of the K receiving beams in the beam is determined; or, the number of antenna panels used to receive the reference signal is K, and the receiving status information of the first resource is determined according to the receiving status information of the K antenna panels. , K is a positive integer greater than or equal to 1.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving status information of the first resource includes the first receiving beam The K receiving status information of the K receiving beams, and the number of received first receiving beams and the receiving state information of the reference signal carried on each first resource include: receiving the first receiving beam number information K and the K reception status information; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, as well as the number of received first reception beams and the number of each The reception status information of the reference signals carried on the first resources includes: receiving K reception status information of the K antenna panels corresponding to the K reception beams.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the K reception beams correspond to K reception state information, and any two of the K reception state information of the K reception beams are The difference is less than or equal to the first threshold, and / or the difference between any two of the K reception status information of the K antenna panels is less than or equal to the first threshold; or

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, when the first receiving beam includes N receiving beams, and N is a positive integer greater than K, the K receiving states of the K receiving beams The difference between the reception status information of any one of the information and the reception status information of any one of the N reception beams except for the K reception beams is greater than the fourth threshold, and / or the K The difference between the reception status information of any of the K reception status information of each antenna panel and the reception status information of any one of the NK antenna panels other than the K antenna panels of the N antenna panels is greater than Four thresholds; or

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the communication unit is further configured to: send first reporting configuration information, where the first reporting configuration information is used to indicate information about reporting the number of the first receiving beam The number of bits is used to indicate the maximum value of the number of the first receiving beams to be reported, or the number of bits used to report the reception status information.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, when the number of the first resources is M and M is a positive integer greater than or equal to 2, the communication unit is further configured to: receive the M Identification information of the at least one first resource in the first resource.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the communication unit is further configured to receive first indication information, first indication information, and the first indication information is used to instruct reception of M first resources. Whether the receiving beam of the reference signal carried on the uplink can be used for uplink transmission at the same time.

With reference to the seventh aspect and the foregoing implementation manners, in some possible implementation manners, the reception status information is any one of a reference signal received power RSRP or a signal noise to interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ .

With reference to the eighth aspect and the foregoing implementation manners, in some possible implementation manners, the first receiving beam is used for uplink transmission.

With reference to the eighth aspect and the foregoing implementation manners, in some possible implementation manners, the antenna panel is in an activated state.

According to an eighth aspect, a transmission device is provided, including: a communication unit configured to receive a first message, the first message used to trigger a terminal device to send a first uplink reference signal; and a processing unit configured to generate downlink control information DCI, The DCI is used to instruct the terminal device to send a first uplink resource of the uplink reference signal; and the communication unit is further configured to send the DCI.

With reference to the eighth aspect, in some possible implementation manners, the communication unit is further configured to receive a second message, where the second message is used to indicate the first uplink resource information and uplink beam information, and the first uplink resource information Including the number of first resources and the number of receive beams or corresponding antenna panels that receive the first resource, the first resource is a resource of a plurality of resources used to carry a downlink reference signal that meets a preset communication quality.

With reference to the eighth aspect and the foregoing implementation manners, in some possible implementation manners, the first message is a scheduling request message sent by the terminal device.

With reference to the eighth aspect and the foregoing implementation manners, in some possible implementation manners, the final first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.

According to a ninth aspect, a communication device is provided. The communication device has a function of implementing a terminal device in the method design of the first aspect and the second aspect. These functions can be realized by hardware, and can also be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

According to a tenth aspect, a communication device is provided, and the communication device has a function of implementing a network device (for example, a base station) in the method design of the third aspect and the fourth aspect. These functions can be realized by hardware, and can also be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

According to an eleventh aspect, a terminal device is provided, including a transceiver and a processor. Optionally, the terminal device further includes a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the terminal device executes the foregoing first aspect or any one of the first aspect. An implementation manner, and the foregoing second aspect or the method in any one of the possible implementation manners of the second aspect.

In a twelfth aspect, a network device is provided, including a transceiver and a processor. Optionally, the network device further includes a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the terminal device executes the third aspect or any one of the third aspect. An implementation manner, and the method performed by the network device in the foregoing fourth aspect or any one of the possible implementation manners of the fourth aspect.

According to a thirteenth aspect, a communication system is provided. The system includes the terminal device of the fifth aspect and the terminal device of the sixth aspect; or the system includes the network device of the seventh aspect and the network device of the eighth aspect.

According to a fourteenth aspect, a communication device is provided. The communication device may be a terminal device designed in the foregoing method, or a chip provided in the terminal device. The communication device includes a processor coupled to the memory, and can be used to execute instructions in the memory to implement the first aspect or any possible implementation manner of the first aspect, and the second aspect or any of the second aspect. The method performed by the terminal device in a possible implementation manner. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

When the communication device is a terminal device, the communication interface may be a transceiver, or an input / output interface.

When the communication device is a chip configured in a terminal device, the communication interface may be an input / output interface.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

According to a fifteenth aspect, a communication device is provided. The communication device may be a network device in the foregoing method design, or a chip provided in the network device. The communication device includes a processor coupled to the memory, and can be used to execute instructions in the memory to implement the third aspect or any possible implementation manner of the third aspect, and the fourth aspect or any of the fourth aspect. Method implemented by a network device in a possible implementation. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

When the communication device is a network device, the communication interface may be a transceiver, or an input / output interface.

When the communication device is a chip configured in a network device, the communication interface may be an input / output interface.

In a sixteenth aspect, a computer program product is provided. The computer program product includes: computer program code that, when the computer program code runs on a computer, causes the computer to execute the methods in the above aspects.

In a seventeenth aspect, a computer-readable medium is provided. The computer-readable medium stores program code, and when the computer program code runs on a computer, the computer causes the computer to execute the methods in the foregoing aspects.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a mobile communication system applicable to an embodiment of the present application.

FIG. 2 is a schematic diagram of an example of downlink beam training according to an embodiment of the present application.

FIG. 3 is a schematic diagram of an example of resource allocation.

FIG. 4 is a schematic diagram of an example of uplink beam training according to an embodiment of the present application.

FIG. 5 is another schematic diagram of resource configuration according to an embodiment of the present application.

FIG. 6 is another schematic diagram of uplink beam training according to an embodiment of the present application.

FIG. 7 is a schematic diagram of uplink beam training according to another example of the embodiment of the present application.

FIG. 8 is a schematic diagram of uplink beam training according to another example of the embodiment of the present application.

FIG. 9 is a schematic flowchart of an uplink non-codebook transmission process according to an embodiment of the present application.

FIG. 10 is a schematic diagram of another uplink non-codebook transmission process according to an embodiment of the present application.

FIG. 11 is a schematic flowchart of an uplink codebook transmission process according to an embodiment of the present application.

FIG. 12 is a schematic interaction diagram of an example transmission method according to an embodiment of the present application.

FIG. 13 is a schematic diagram of an example of transmission resources and beams provided by an embodiment of the present application.

FIG. 14 is a schematic interaction diagram of another transmission method according to an embodiment of the present application.

FIG. 15 is a schematic block diagram of an example transmission apparatus according to an embodiment of the present application.

FIG. 16 is a schematic block diagram of another example of a transmission apparatus according to an embodiment of the present application.

FIG. 17 is a schematic block diagram of another example of a transmission apparatus according to an embodiment of the present application.

FIG. 18 is a schematic block diagram of another example of a transmission apparatus according to an embodiment of the present application.

FIG. 19 is a schematic diagram of an example of a transmission device according to an embodiment of the present application.

FIG. 20 is a schematic diagram of another transmission apparatus according to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions in the embodiments of the present application can be applied to various communication systems, such as: a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, and an LTE time division duplex (LTE time division duplex). (TDD), 5th generation (5G) mobile communication system or new wireless (NR) communication system, and future mobile communication system.

FIG. 1 is a schematic structural diagram of a mobile communication system applicable to an embodiment of the present application. The communication system in FIG. 1 may include at least one terminal device (for example, terminal device 10, terminal device 20, terminal device 30, terminal device 40, terminal device 50, and terminal device 60) and a network device 70. The network device 70 is used to provide communication services for the terminal device and access the core network. The terminal device can access the network by searching for synchronization signals, broadcast signals, and the like sent by the network device 70 to communicate with the network device. The terminal device 10, the terminal device 20, the terminal device 30, the terminal device 40, and the terminal device 60 in FIG. 1 can perform uplink / downlink transmission directly with the network device 70. In addition, the terminal device 40, the terminal device 50, and the terminal device 60 can also be regarded as a communication system, and the terminal device 60 can send scheduling information to the terminal device 40 and the terminal device 60.

In the mobile communication system 100, the network device 70 is an access device in which the terminal device accesses the mobile communication system wirelessly. The network device 700 may be: a base station, an evolved base station (eNB), a home base station, an access point (AP), a wireless relay node in a wireless fidelity (WIFI) system, The wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., may also be a gNB in an NR system, or it may be a component or a part of the equipment that constitutes a base station, such as A central unit (CU), a distributed unit (DU), or a baseband unit (BBU). In this application, the network device may refer to the network device itself, or a chip applied to the network device to perform a wireless communication processing function. It should be understood that, in the embodiments of the present application, specific technologies and specific device forms adopted by the network device are not limited.

The terminal device in the mobile communication system 100 may also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), and the like. The terminal device in the embodiment of the present application may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, or a virtual reality (VR), augmented reality (AR) ), Industrial control (industrial control), driverless (self driving), remote medical (remote medical), smart grid (grid), transportation safety (transportation safety), smart city (smart city) and smart home (smart home) ) And other scenarios. In the present application, the foregoing terminal devices and chips applicable to the foregoing terminal devices are collectively referred to as terminal devices. It should be understood that the embodiment of the present application does not limit the specific technology and specific device form used by the terminal device.

The terms involved in this application are described below.

1, physical downlink control channel (physical downlink control channel, PDCCH)

The reference signal resources of the communication system can be divided into multiple orthogonal frequency division multiple access (OFDM) symbols from time, and can be divided into several subcarriers from the frequency. The PDCCH in the downlink typically occupies the first two / three OFDM symbols in a subframe. The PDCCH is used to carry downlink control information (DCI). The DCI carries user equipment specific resource allocation, user equipment transmission scheme, and other control information specific to the user equipment or shared by the cell.

2. Physical uplink shared channel (PUSCH)

The PUSCH in the uplink is used to carry uplink transmission data. Generally, a discrete Fourier transform spread OFDM (DFT-spread OFDM, DFT-S-OFDM) is used to generate a frequency domain signal.

3. Uplink channel measurement reference signal

The terminal device sends the SRS according to the sounding reference signal (SRS) resources configured by the network device, and the network device receives the SRS on the corresponding SRS resource for channel measurement, so that the network device can determine the quality of the uplink channel, and then can perform uplink Frequency selective scheduling (e.g., determining the bandwidth occupied by PUSCH transmissions).

The network device configures the position of the time-frequency resource occupied by the SRS resource and the sending method used to send the SRS on the SRS resource through high-level signaling or medium access control-element (MAC-CE) signaling. In the embodiment of the present application, the high-level signaling may be radio resource control (radio resource control (RRC) signaling). Specifically, the configuration information of each SRS resource includes at least the index number of the SRS resource, the time-frequency position information occupied by the SRS resource, the number of SRS ports, the time domain transmission type, the SRS transmission beam information, and the purpose of the SRS. The resources occupied by sending the SRS can be determined according to the configuration parameters shown in Table 1.

Table 1

As shown in Table 1, the minimum detection bandwidth indicated by the SRS resource in the frequency domain is 4 PRBs, and the frequency hopping bandwidth of different SRS resources has an integer multiple relationship, and the frequency hopping pattern has a tree structure.

As shown in Table 1, the time domain types of SRS resources configured in the time domain are periodic, semi-static, and aperiodic. Among them, the periodic SRS resource configuration parameters include the SRS resource slot-level period (for example, 2ms, 5ms, 10ms) and the slot-level offset. After the network device configures the SRS resource through RRC signaling, the terminal device will enter the slot within a specific period. SRS is sent on the determined SRS resources according to the configuration information; the aperiodic SRS resource configuration parameters do not include the SRS resource slot-level period. After the network device configures the SRS resources through RRC signaling, it sends DCI in a slot. The DCI Used to indicate the SRS and trigger the SRS resource. The terminal device uses the slot where the DCI is located as a reference and sends the SRS on the determined SRS resource according to a pre-configured slot offset. For example, if the DCI indicates in the slot and the pre-configured slot offset is k, the terminal device will send an SRS on the SRS resource of slot (n + k).

SRS resources are mainly used for: channel measurement for PUSCH transmission (codebook-based uplink transmission or non-codebook-based uplink transmission), antenna selection (terminal equipment uses different antennas to send different SRS), and for Uplink beam training (terminal equipment uses different transmit beams to send different SRS resources). Multiple SRS resources with the same purpose can be configured in an SRS resource set. The SRS resource set can include configuration information common to multiple SRS resources. For example, multiple SRS resources in one SRS resource set are used for uplink. Codebook transmission or uplink non-codebook transmission or used for beam training. You can also configure multiple SRS resources in an SRS resource set to be periodic or aperiodic. You can also configure multiple SRS resources in an SRS resource set to have The same number of ports, etc.

4.Report of downlink channel state information reference signal and channel state information

It should be understood that the downlink reference signal transmitted on multiple resources may be a channel state information reference signal (channel-information reference resource, CSI-RS), or a synchronization signal block (synchronization signal block, SSB). Modulation reference signal (DMRS). In the embodiment of the present application, the downlink reference signal is described by taking the CSI-RS as an example, but the present application is not limited thereto.

The CSI-RS is mainly used for a terminal device to determine downlink channel quality and report channel state information (channel state information). The network device sends the CSI-RS on the CSI-RS resource, and the terminal device receives the CSI-RS on the corresponding CSI-RS resource to obtain the downlink channel according to the configuration parameters of the CSI-RS resource configured by the network device, and according to the specific algorithm and CSI The reporting rule determines the CSI reported information based on the CSI-RS resource, and the network device receives the CSI reported information, so that the network device can perform selective downlink frequency scheduling based on the obtained channel information (for example, determine the bandwidth occupied by the scheduled PDSCH transmission) .

The network device indicates the configuration information of the CSI-RS resource through high-level signaling such as RRC signaling or MAC-CE signaling. The configuration information of each CSI-RS resource includes at least the index number of the CSI-RS resource and the CSI-RS resource. The occupied time-frequency position information, the number of CSI-RS transmission ports, and the received beam information of the CSI-RS.

It should be noted that the CSI-RS resources may be configured in one CSI-RS resource set, or may be configured in different CSI-RS resource sets. For example, multiple CSI-RS resources used for beam training may be configured in one CSI-RS resource set.

The network device may also indicate the reporting information of the CSI report based on some CSI-RS resources (that is, the content of the CSI report and the CSI measurement method) through high-level signaling. The CSI-RS is received on the resource to obtain channel information, and the CSI information is obtained based on the corresponding configuration parameter reported by the CSI and reported to the specific uplink resource. The content of CSI includes channel quality indication (CQI), precoding matrix indication (PMI), CSI-RS resource indication (CRI), and synchronization signal block SSB indication (SSB source). At least one of indication (CRI), rank indication (RI), and reference signal received power (reference signal received power (RSRP)).

Among them, according to the use of CSI, the reported CSI is divided into two types, one is reporting the number of downlink transmission layers and / or precoding matrix information used to characterize the downlink transmission, and the other is reporting the beam information of the downlink transmission. For example, corresponding to the downlink beam training, the reporting form usually includes CRI, RI, and the reference signal received power RSRP corresponding to CRI, RI, signal noise interference ratio (SINR), and reference signal reception quality (reference signal). reception quality (RSRQ) or signal-to-noise ratio (SNR).

The time domain types for CSI-RS resource configuration and CSI report configuration are periodic, semi-static, and aperiodic. Among them, the periodic CSI-RS resource configuration parameters and CSI report configuration parameters include the slot-level period and slot-level offset of the CSI-RS resource and uplink resources occupied by the CSI report. The terminal device will configure the slot within a specific period according to the configuration. The information receives the CSI-RS on the determined CSI-RS resources and sends CSI at the determined CSI reporting time; the aperiodic CSI-RS resource configuration parameters and CSI reporting configuration parameters do not include the slot-level period, and the base station will A DCI is sent in the slot. The DCI is used to indicate and trigger CSI-RS resources and CSI reporting. The terminal device will use the slot where the DCI is located as a reference and receive on the determined CSI-RS resource according to the pre-configured slot offset. The CSI-RS reports CSI information on a certain uplink resource according to a pre-configured slot offset. The slot offset of the CSI-RS resource is different from the slot offset reported by the CSI. For example, if the DCI indicates in the slot, the slot offset of the pre-configured CSI-RS is k1, and the slot offset of the pre-configured CSI report is k2. Receive the CSI-RS on the resource and report the CSI based on the CSI-RS measurement on the uplink resource of slot (n + k1 + k2).

5.Antenna panel

The high-frequency band used by NR causes greater path loss. In order to overcome the larger path loss, a signal transmission mechanism based on beamforming technology is adopted to compensate for the loss in the signal transmission process through a larger antenna gain. . Among them, beamforming can be used to transmit reference signals, data channels, and control channels. When the signal is transmitted based on the beamforming technology, once the user sends a movement, there may be a problem that the direction of the shaped beam corresponding to the transmitted signal no longer matches the position of the user in the future, and thus the received signal is frequently interrupted. In order to track the change of the shaped beam in the signal transmission process to ensure that the signal transmission uses the aligned beam to ensure the transmission performance, therefore, a beam management process is introduced in the NR.

Both network equipment and terminal equipment may be provided with at least one antenna panel, and each antenna panel corresponds to a set of independent transmission links, including power amplifiers, radio frequency, etc., and each antenna panel can generate multiple analog beams through phase shifters, but Due to the working principle of the phase shifter, the analog beams produced by the same antenna panel cannot be used simultaneously, that is, multiple analog beams produced by one antenna panel can only be time-division multiplexed, and the independent analog beams produced by multiple antenna panels can be simultaneously Use, that is, multiple analog beams produced by multiple antenna panels can be frequency division multiplexed. At the same time, multiple physical antennas in each antenna panel can further produce digital beams (for example, precoders or precoding matrices), and digital beams can be frequency division multiplexed, that is, each antenna panel containing multiple antennas Both can support multiple layers of data transmission. Each layer of data transmission uses an orthogonal precoding matrix, and the data transmission of multiple layers uses the same analog beam.

6.Beam training

The purpose of beam training is to obtain better transmit and receive beams and use the better beams obtained through training to receive and send information. In the following description and detailed description of the embodiments of the present application, a base station is used as a network device, and communication between the base station and a terminal device is taken as an example for description.

For downlink transmission, the communication process between the base station and the terminal equipment at the physical layer can be: determining the optimal transmit and receive beams, channel state measurement parameters, etc. through beam training. The terminal equipment uses the beam receiving and transmission modes indicated by the base station (determined based on beam training). Receive data or control information. The determination of the optimal transmit and receive beam through beam training may specifically be a reference signal (RS) sent by the base station for beam training. The terminal device receives the RS used for beam training and performs signal quality measurement based on the RS. The measurement requires the terminal device to report related information; the channel state measurement may specifically be an RS sent by the base station for channel measurement, and related information needs to be reported for downlink measurement.

For uplink transmission, the communication process between the base station and the terminal device at the physical layer may be: determining the optimal transmit / receive beam through beam training, channel state measurement, and transmitting data or control information by the terminal device using the transmit beam and transmission mode indicated by the base station. Among them, the determination of the optimal transmit and receive beam through beam training may specifically be the RS sent by the terminal device for beam training, and the base station receives the RS used for beam training and performs signal quality measurement based on the RS; the channel state measurement may specifically be sent by the terminal device An RS for channel measurement and channel measurement based on the RS.

It should be noted that the above-mentioned transmission manner may include at least one of a modulation and coding scheme (modulation and coding scheme, MCS), precoding, and the number of transmission layers.

Beam training is divided into uplink beam training and downlink beam training. Downlink beam training is usually based on: the terminal device scans the receive beam and the base station scans the transmit beam to complete the training of the optimal transmit and receive beams. The process of the base station scanning the transmit beam is to use different transmit beams to send multiple CSI-RS or multiple SSBs. In the description process of this application, CSI-RS is taken as an example for detailed description. The process of scanning the receiving beam by the terminal device is a process of receiving multiple CSI-RSs by using different receiving beams.

Figure 2 shows three types of training for the downlink beam. As shown in Figure 2, it specifically includes the following three cases:

(1) The base station and the terminal device measure the transmit and receive beams simultaneously, that is, the base station sends multiple CSI-RSs using different transmit beams, and the terminal device receives the multiple CSI-RSs with different receive beams. This process usually requires the terminal The device reports the measurement results to enable the base station to obtain the optimal transmit beam information, that is, to report certain optimal transmit and receive beam pairs for subsequent follow-up by reporting some CSI-RS IDs and corresponding signal quality parameters (SINR and RSRP). PDSCH is sent.

(2) The base station sends a fixed beam while the terminal device scans the receive beam, that is, the base station sends multiple CSI-RSs using the same transmit beam, and the terminal device receives the multiple CSI-RSs with different receive beams. This process usually does not require The terminal device reports the measurement result. At this time, it is usually assumed that the base station has determined the optimal transmission beam. The terminal device is required to determine the optimal reception beam based on the optimal transmission beam. When the subsequent base station uses the optimal transmission beam to transmit the PDSCH, the terminal device The PDSCH will be received using the optimal receiving beam obtained through training.

(3) The base station scans the transmission beam while the terminal equipment measures the fixed reception beam and compares the signal quality of multiple transmission beams and reports the optimal beam information. That is, the base station uses different transmission beams to send multiple CSI-RSs. The terminal equipment uses the same The receiving beam receives the multiple CSI-RSs. This process usually requires the terminal device to report the measurement results and report the CSI-RS corresponding to the optimal signal quality to its ID (in the form of CRI) so that the base station can obtain the optimal transmission beam information. .

During the downlink beam training process described above, the terminal device measures the multiple CSI-RSs sent by multiple beams, selects the better N beams among the multiple beams, and maps the better N beams to The CRI and corresponding measurement parameters are reported to the base station, and the base station can obtain the optimal transmission beam information to determine the subsequent transmission beam of the PDSCH. Specifically, the terminal device's measurement of multiple beams is to measure the CSI-RS used for beam management and obtain the corresponding RSRP / SINR information, which represents the signal reception quality corresponding to the current beam: the RSRP / SINR of a signal is When it is large, it means that the signal reception quality corresponding to the beam is better, and the terminal device selects N CSI-RSs with larger RSRP / SINR as the preferred beam to report to the ID of the corresponding CSI-RS resource of the base station. When the terminal device reports the CRI, it also needs to report the corresponding RSRP value. The RSRP report value defined in the current protocol is 7 bits after quantizing the absolute RSRP value. For example, each bit value of 7 bits corresponds to the interval [- 140, -44] Decibel (referred to milliWatt, dBm) each step of 1dBm. Before transmitting the PDSCH, the base station configures the CSI-RS ID corresponding to the optimal transmit / receive beam for PDSCH transmission and notifies the terminal device. When the terminal device receives the PDSCH, it uses the receive beam corresponding to the CSI-RS.

The uplink beam training and downlink beam training processes are very similar. Figure 4 shows the three types of uplink beam training. As shown in Figure 4, it specifically includes the following three cases:

(1) The base station and the terminal device measure the transmit and receive beams simultaneously, that is, the terminal device sends multiple SRSs using different transmit beams, and the base station receives the multiple SRSs using different receive beams, and the base station receives the signal quality of the multiple SRSs. In contrast, the optimal transmit and receive beams for uplink transmission can be determined, so this process usually does not require the terminal device to report the measurement results. The base station can directly configure the SRS ID corresponding to the optimal transmit and receive beam to the SRS (for uplink codebook and non-codebook transmission) and PUSCH and notify the terminal device of the corresponding configuration, so that the terminal device can use the base station when sending subsequent SRS or PUSCH. Determine the optimal transmit beam.

(2) The base station fixedly receives the beam while the terminal device scans the transmit beam, that is, the terminal device sends multiple SRSs using the same transmit beam, and the base station receives the multiple SRSs using different receive beams. This process usually does not require the terminal device to report measurements As a result, the base station can determine the optimal transmit and receive beams for uplink transmission based on the signal quality comparison of the received multiple SRSs, so this process usually does not require the terminal device to report the measurement results. The base station can directly configure the SRS ID corresponding to the optimal transmit and receive beam to the SRS (for uplink codebook and non-codebook transmission) and PUSCH and notify the terminal device of the corresponding configuration, so that the terminal device can use the base station when sending subsequent SRS or PUSCH. Determine the optimal transmit beam. When the terminal device has multiple panels, the terminal device needs to send SRS on multiple SRS resource sets to perform transmission beam training on multiple antenna panels.

(3) The base station scans the receiving beam while the terminal equipment fixes the transmitting beam. The base station measures the SRS and compares the signal quality of multiple receiving beams.

When the terminal device transmits uplink data and reference signals, it needs to determine the uplink data and reference signal transmission beam information according to the beam information indicated by the base station, so that the base station can receive the data and reference signals with a matching receiving beam and ensure uplink The transmission uses a better beam. Wherein, the beam information indicated by the base station notifies the terminal device of a transmission beam used for uplink transmission in the form of an SRS (for beam training) ID. As shown in FIG. 5, the base station is configured with two SRS resource sets, namely SRS resource set 0 and SRS resource set 1. Each SRS resource set includes four 1-port SRS resources, and each SRS is transmitted using one beam ( Each circle in the figure represents a beam). The base station receives the SRS and determines through measurement that the beam corresponding to SRS 0 is the optimal transmit / receive beam, and configures the beam to the SRS for channel measurement. The terminal device sends the SRS using the transmission beam corresponding to SRS 0. The measurement determines the PUSCH transmission mode, for example, the TPMI is instructed to the terminal device, and the terminal device sends the PUSCH based on the transmission beam used by the SRS 0 and the TPMI. Alternatively, as shown in FIG. 6, the base station configures two SRS resource sets, namely SRS resource set 0 and SRS resource set 1. Each SRS resource set includes four 1-port SRS resources, and each SRS is transmitted using one beam. . The base station receives the SRS and determines through measurement that the beam corresponding to SRS 0 and the beam corresponding to SRS 4 are optimal transmit and receive beams. The two beams are allocated to the SRS for channel measurement, and the terminal equipment uses SRS 0 and SRS 4 corresponding. The transmission beam transmits the SRS, and the base station determines the PUSCH transmission method based on the measurement of the SRS, for example, the TPMI indicates to the terminal device, and the terminal device uses the transmission beam adopted by the SRS 0 to be the optimal method for transmitting the PUSCH.

The current standard also supports the use of time division duplexing (TDD) scenarios (that is, uplink and downlink transmissions use the same frequency resources through time division multiplexing, and TDD systems usually have channel reciprocity characteristics). The optimal receiving beam obtained through training can be used as the optimal transmitting beam for uplink transmission. This method is based on the assumption of beam consistency. If the beam consistency assumption of the terminal equipment is established, it indicates that the uplink transmitting antenna and the downlink receiving antenna of the terminal equipment have been calibrated. At this time, if the channel reciprocity is established, the better beam used by the terminal equipment for uplink transmission can pass directly. The better beams for downlink reception are obtained, and the better beams used by the terminal device for downlink reception can also be obtained directly from the better beams sent by the uplink device. If the beam consistency assumption of the terminal device is not valid, the above assumptions cannot be made. In this way, when the beam consistency and channel reciprocity are both established, the process of uplink beam training can be omitted, and the uplink beam information can be determined directly based on the results of the downlink beam training process to reduce the resource overhead and transmission caused by uplink beam training. Increased delay. For example, as shown in FIG. 7, in the downlink beam training, it is determined that the receiving and transmitting beam corresponding to CSI-RS0 is the optimal beam, and it is configured to the SRS. The transmitting beam sent by the terminal device using the SRS is the receiving beam corresponding to CSI-RS0 (beam mutual Easy) and perform subsequent PUSCH transmission. Alternatively, as shown in FIG. 8, in the downlink beam training, it is determined that the receiving and transmitting beams corresponding to CSI-RS 0 and CSI-RS 4 are optimal beams, and are configured for the SRS. Receive beam corresponding to CSI-RS 4 (beam reciprocity). The terminal equipment sends the SRS using the transmission beams corresponding to SRS0 and SRS4, and the base station then determines the PUSCH transmission method based on the measurement of the SRS. For example, the TPMI indicates to the terminal equipment. The transmission beam used by the terminal equipment based on SRS0 is the best. Method for sending PUSCH.

The description method that can be adopted for the uplink transmit and receive beams is spatial filtering parameter information, and the description mode that is used for the downlink transmit and receive beams is spatial co-location (spatial, QCL). Because the beam measurement is based on the measurement of the reference signal, that is, multiple RS resources are configured during the beam training process. Each RS resource uses different transmit and receive beams to transmit RSs. For downlink beam training, the terminal device is measured. The CSI-RS resources used for beam training report the CSI-RS resource index number (for example, the CSI-RS resource indication CRI) corresponding to the optimal receiving beam. For uplink beam training, the base station measures the SRS resources used for uplink beam training, and then indicates the SRS resource index number corresponding to the optimal transmit and receive beam. For example, in uplink transmission, the transmission beam of the SRS resource used for channel measurement is determined through spatial information. This parameter indicates an index of a reference signal, and the type of the reference signal includes SRS, CSI-RS, and so on. When the high-level parameter is configured as the SRS resource index value, the spatial filtering information for sending SRS on the SRS resource used for channel measurement is the same as the transmission beam used for sending SRS on the SRS resource used for beam training; when the high-level parameter is configured as CSI When the RS resource index value is used, the spatial filtering information of the SRS transmitted on the SRS resource used for channel measurement is the same as the received beam used to receive the CSI-RS on the CSI-RS resource used for beam training. Based on the associated reference signal resource index, the terminal device can infer the transmission beam information of the SRS according to the high-level parameters.

For uplink, the antenna panel of the terminal device can be implicitly defined through the SRS resource configuration. Specifically, the base station can configure multiple SRS resource sets, and the SRSs in each SRS resource set cannot be sent simultaneously and different SRS resource sets. All SRS in the device can be sent at the same time, which means that each SRS resource set corresponds to an antenna panel of a terminal device, and different SRS resources in each SRS resource set correspond to different transmission beams of an antenna panel of a terminal device. For example, as shown in FIG. 3, the base station is configured with two SRS resource sets, where SRS resource set 0 corresponds to one antenna panel of the terminal device, SRS resource set 1 corresponds to another antenna panel of the terminal device, and each SRS resource in the two resource sets The SRS transmitted on the uplink may correspond to different / same terminal equipment transmitting beams.

Therefore, in this application, the receiving beam and the antenna panel can also be embodied in a similar manner, that is, the index value of the receiving beam or the antenna panel is characterized based on the index value of the reference signal resource or the reference signal resource set, and based on the reference signal resource or the reference signal resource set. The number represents the number of receive beams or antenna panels.

7. Uplink transmission based on non-codebook

The transmission mode of the uplink data channel PUSCH includes a non-codebook-based transmission mode. This transmission mode is mainly used in the TDD system, that is, the terminal device can directly derive the uplink channel information through the downlink channel information, or the base station can directly obtain the uplink channel information through the uplink channel information. Downlink channel information. For example, a terminal device obtains a downlink channel covariance matrix H through a CSI-RS, and a matrix H 'after performing a conjugate transpose operation on H is an uplink channel covariance matrix.

For non-codebook-based uplink transmission, the base station first indicates the SRS resource configuration information and the CSI-RS resource configuration information associated with the SRS through RRC signaling. The CSI-RS resource configuration information includes the port of the resource, Time-frequency resources occupied, etc. The base station sends the CSI-RS on the corresponding time-frequency resource, and the terminal device receives the CSI-RS on the corresponding time-frequency resource and obtains the candidate precoding matrix based on the channel reciprocity assumption and its own algorithm, and then on the corresponding SRS resource The SRS that has passed the candidate precoding is sent, and the base station receives and measures the weighted SRS on the corresponding SRS time-frequency resources to obtain uplink channel information. The base station uses its own implementation algorithm to determine the time-frequency resources and transmission scheme used to schedule the terminal device to send the PUSCH, and indicates this information to the terminal device through the DCI signaling carried in the PDCCH for uplink scheduling. The transmission scheme includes at least beam information used by the terminal device to send the PUSCH, SRS resource selection indicator (SRI), modulation and coding scheme (MCS), and antenna port indication information. After receiving the DCI for scheduling the PUSCH transmission, the terminal device performs PUSCH transmission according to the time-frequency resources and the sending scheme indicated in the DCI. The SRS transmitted on each SRS resource corresponds to a precoding matrix. Generally, each SRS resource is a virtual port. The number of SRS resources configured by high-level signaling indicates the maximum number of layers that can be supported by PUSCH transmission. The terminal device needs to send the DM-RS associated with the PUSCH while transmitting the PUSCH, and the base station performs channel estimation and demodulates the corresponding PUSCH through the DM-RS. The DM-RS ports correspond one-to-one with the SRS resources indicated by the SRI. Among them, the role of the SRI is to instruct the terminal device to perform phase weighting between the transmitting antennas used for transmitting the PUSCH according to the same phase weighting operation between the transmitting antennas transmitting the SRS indicated by the SRI, and at the same time indicate the number of transmission layers of the PUSCH.

Table 2 shows the description of the SRI field, where N _SRS represents the number of SRS resources configured by the base station through high-level signaling, and the number of bits in the SRI field depends on the number of SRS resources configured. When the number of SRS resources is greater than 1, the number of bits in the SRI field is greater than 0. Taking N _SRS = 4 as an example, each state of the 4-bit SRI field is used to indicate the selection of one or more SRS resources, and the number of SRS resources represents the number of transmission layers. For example, the precoding matrices on four single-port SRS resources (index values from 0 to 3) are: [1 0 0 0], [0 1 0 0], [0 0 1 0], [0 0 0 1] When the SRI field indicates "0100", the index value corresponding to the SRI field = 7, and at this time, the

SRS resource numbers

1 and 2 are indicated, then the PUSCH transmission uses 2 layers, and the precoding matrix of each layer is [0 1 0 0] and [0 0 1 0].

Table 2 Example of SRI field

The uplink non-codebook transmission process combining beam management (BM) is shown in FIG. 9. In the downlink beam training process in the first step in FIG. 9, the base station configures multiple CSI-RS resources, such as CSI-RS 0 to CSI-RS 7 in the figure. Each CSI-RS resource corresponds to a set of transmitting and receiving beams and the antenna panel of the terminal device. For example, CSI-RS 0-3 corresponds to the antenna panel 1 of the terminal device and the receiving beam generated by the antenna panel 1, and CSI-RS 4-7 corresponds to the terminal. The antenna panel 2 of the device and the reception beam generated by the antenna panel 2. The terminal equipment reports the CSI-RS resource indexes corresponding to the two optimal transmit and receive beams based on the CSI-RS 0-7 measurements, which are 0 and 4, which means that CSI-RS 0 and CSI-RS 4 are the optimal transmit and receive beam pairs. . After that, the base station configures 4 SRS resources for uplink transmission channel measurement. The spatial filtering information of SRS0-1 is associated with CSI-RS0, and the spatial filtering information of SRS2-3 is associated with CSI-RS4, that is, the terminal device sends The four SRSs use the receiving beams of CSI-RS0 and CSI-RS4, respectively. CSI-RS0 and CSI-RS4 may correspond to the receiving beams of different terminal equipment antenna panels.

Further, based on the non-codebook transmission method, the terminal device will use different precoder (digital precoding) schemes on SRS0 and SRS1. The precoding matrix is obtained by weighting the antennas in the antenna panel 1 of the terminal device. SRS 2 and SRS 3 also use different precoding matrix (digital precoding) schemes, which are obtained by antenna weighting in the antenna panel 2 of the terminal device. After receiving the 4 SRSs, the base station may instruct the SRI to select one or more SRS resources, and then the antenna panel, transmission beam, and precoding matrix used for PUSCH transmission are consistent with the SRS resources selected by the SRI. When the base station instructs SRI to select SRS 0 and SRS 1, antenna panel 1 is used for PUSCH transmission. When the base station instructs SRI to select SRS 0 and SRS 3, antenna panel 1 and antenna panel 2 are used for PUSCH transmission.

It should be understood that the configuration manner of the CSI-RS resource and the SRS resource shown in FIG. 9 is only an example, and may also include more different resource configuration manners, which is not limited in this application.

For the non-codebook-based uplink transmission described above, when the spatial Relation Info of two SRS resources is configured as two CSI-RS index values, for example, SRS 0 in FIG. 9 can be configured as the index value of CSI-RS 0. SRS 2 can be configured as the index value of CSI-RS 4. When the terminal equipment reports the RSRP / SINR corresponding to the CSI-RS resource with the highest RSRP / SINR during the beam training process, the terminal equipment antenna panel information is not carried, so the base station does not know whether the receiving beam corresponding to the 2 CSI-RSs is 2 terminals. The device antenna panel, that is, the base station does not know that the two

beams

0 and 4 receiving the CSI-RS are two antenna panels corresponding to the terminal device, or one antenna panel corresponding to the terminal device. Then, the base station configures two SRS resources for the terminal device. When the two

beams

0 and 4 receiving the CSI-RS are one antenna panel corresponding to the terminal device, the two SRS resources configured by the base station for the terminal device can only be time-division-multiplexed. (TDD), in addition, the base station does not know whether the antennas corresponding to the two SRS resources can be used for PUSCH transmission at the same time. Specifically, only when two CSI-RS receiving beams correspond to two antenna panels of a terminal device, the two SRS resources can be configured as frequency division multiplexing (FDD) and the base station can simultaneously select two SRS resources for uplink. Indicates the transmission mode of the transmission.

Alternatively, as shown in FIG. 10, when a terminal device receives a CSI-RS resource configured by spatial Relation Info, it may use two receiving beams corresponding to the two antenna panels of the terminal device, as shown in the first step of the downlink beam training process in FIG. , CSI-RS 0 is received through

beams

1 and 3 of the terminal device, and beam 1 and beam 3 correspond to the 2 antenna panels of the terminal device; CSI-RS 1 is received through

beams

2 and 4 of the terminal device, and beam 2 and beam 4 It also supports 2 different antenna panels for terminal equipment. Based on the obtained RSRP information corresponding to the CSI-RS, the base station does not know whether the terminal device uses one antenna panel or two antenna panels to receive the CSI-RS and obtains the RSRP information. Therefore, the base station not only does not know whether the two SRS resources can be configured to occupy the same OFDM symbol, that is, the FDD mode, and when the RSRPs of the two CSI-RSs received by the two antenna panels are comparable, the base station expects the spatial relationship in the two SRS resource configuration parameters. Info is configured as the CSI-RS resource. In this way, the optimal PUSCH transmit beam can be further selected through SRS measurement. If the SpatialRelation parameter of only one SRS resource is configured as the CSI-RS resource, the terminal device needs to use two The antenna beam corresponding to each antenna panel transmits the SRS, and then different SRS ports correspond to different antenna panels. However, the antennas in different antenna panels are not phase-calibrated. If the SRS is instructed by the base station as a precoding reference method for PUSCH, transmitting the same data stream with an uncalibrated antenna will cause precoding made between ports when the PUSCH is actually transmitted. Indicated precoding, which has a huge impact on performance.

8. Codebook-based uplink transmission

Both the base station and the terminal device store the codebook for uplink transmission according to the protocol, and each codeword is arranged according to the increasing order of the precoding indicator (transmission, precoding, matrix, and indicator) from the left to the right in the table, as shown in Table 3. An example of an uplink 4-antenna codebook supported in the current protocol. The codebook contains three sets of codewords corresponding to the coherence capability:

(1) Full-coherent capability, indicating that all transmitting antennas of a terminal device have completed phase calibration and can be phase-weighted, that is, all terminal device antennas can send the same data layer, for example, the TPMI index value in Table 3 is 12- 27.

(2) Partial-coherent capability, which indicates that the pair of transmit antenna pairs of the terminal device has completed phase calibration and phase weighting can be performed, while the phase alignment between the pair of transmit antenna pairs of the terminal device is not completed and phase cannot be performed Weighting, that is, the two terminal equipment antennas that have been calibrated can send the same data layer. For example, the TPMI index values in Table 3 are 4-11.

(3) Non-coherent capability, indicating that phase calibration is not completed between all transmitting antennas of the terminal equipment, and no phase weighting can be used to send the same data layer, that is, for the same layer of data, only one Antenna transmission. For example, the TPMI index value in Table 3 is 0-3.

Table 3 Precoding matrix W for 4 layers of antenna

The terminal device sends an SRS signal on the corresponding uplink time-frequency resource according to the SRS configuration parameter, and the base station receives and measures the SRS on the corresponding SRS time-frequency resource to obtain uplink channel information. The base station determines the time-frequency resource and transmission scheme used to schedule the terminal device to send the PUSCH through its own implementation algorithm, and indicates this information to the terminal device through the DCI signaling carried in the uplink PDCCH for scheduling. The transmission scheme includes at least beam information, SRI, transmission rank indicator (TRI), TPMI, modulation and coding scheme (MCS) used by the terminal device to send the PUSCH. Among them, the role of TPMI is to instruct the terminal equipment to perform phase weighting between the transmitting antennas; when the number of SRS resources used for codebook transmission is greater than 1, the SRI field appears, and its role is also the selection of SRS resources, but it is not the same as the uplink non-codebook The transmission mechanism is not the same: SRS resources based on codebook transmission have more than 1 port, and usually the SRS port corresponds to the physical antenna port of the terminal device one by one, then the role of SRI is to select the antenna panel and antenna panel of the terminal device The corresponding transmission beam, that is, each SRS resource corresponds to an antenna panel of a terminal device and corresponding beam indication information (the high-level parameter in the protocol is: spatialRelationInfo). The terminal device transmits the PUSCH according to the time-frequency resources and the transmission scheme indicated in the DCI.

For codebook-based uplink transmission, downlink beam training is performed first, and the first step in FIG. 11 is the downlink beam training process. The base station is configured with multiple CSI-RS resources, and each CSI-RS resource corresponds to a set of transmitting and receiving beams and an antenna panel of a terminal device. For example, CSI-RS resources 0-3 correspond to the antenna panel 1 of the terminal device and the reception generated by the antenna panel 1. Beam, CSI-RS resources 4-7 correspond to antenna panel 2 of the terminal device and the receiving beam generated by the antenna panel 2, and the terminal device reports the CSI-RS corresponding to the two optimal transmit and receive beams based on the CSI-RS measurement 0-7 The indexes are 0 and 4. After that, the base station configures two SRSs for uplink transmission channel measurement, and the spatial filtering information of the two SRSs is associated with CSI-RS0 and CSI-RS4 respectively, that is, the terminal equipment sends the two SRSs using CSI-RS0 and CSI-RS, respectively. The receiving beams of RS4, CSI-RS0 and CSI-RS4 may correspond to the receiving beams of different terminal equipment antenna panels. After receiving two SRSs, the base station may instruct the SRI to select one of the SRS resources, and then the antenna panel and transmission beam used for PUSCH transmission are consistent with the SRS resources selected by the SRI. The base station may further instruct TPMI, and the weighting vector acts on the antenna included in the antenna panel of the terminal device corresponding to the selected SRS resource. Alternatively, the base station may instruct the SRI to select two SRS resources, and then two antenna panels and corresponding transmission beams are used for PUSCH transmission. The base station may further indicate two TPMIs for the two antenna panels, and each weight vector acts on the antenna included in the antenna panel of the terminal device corresponding to the SRS resource.

It should be understood that the configuration manner of the CSI-RS resource and the SRS resource shown in FIG. 11 is only an example, and may also include more different resource configuration manners, which is not limited in this application.

For the codebook-based uplink transmission described above, when the spatial Relation Info of 2 SRS resources is configured as 2 CSI-RS index values, for example, SRS 0 in FIG. 11 can be configured as the index value of CSI-RS 0, SRS 1 can be configured as the index value of CSI-RS 4. When the terminal equipment reports the RSRP / SINR corresponding to the CSI-RS resource with the highest RSRP / SINR during the beam training, the terminal equipment antenna panel information is not carried, so the base station does not know whether the receiving beam corresponding to the two CSI-RSs is the terminal equipment. Two antenna panels, that is, the two

beams

0 and 4 that the base station does not know to receive the CSI-RS are two antenna panels corresponding to the terminal device, or one antenna panel corresponding to the terminal device. The two SRS resources can only be time-division multiplexed, and the base station does not know whether the antennas corresponding to the two SRS resources can be used for PUSCH transmission at the same time. Specifically, only when two CSI-RSs correspond to two terminal device antenna panels, two SRS resources can be configured as frequency division multiplexing and the base station can simultaneously select two SRS resources for a transmission mode indication of uplink transmission.

Alternatively, similar to the process of FIG. 10 described above, when receiving a CSI-RS configured by spatial Relation Info, a terminal device may use two receive beams corresponding to the two antenna panels of the terminal device. The RSRP information is not clear whether the terminal device uses one antenna panel or two antenna panels to receive the CSI-RS and obtain the RSRP information. So the base station not only does not know whether the two SRSs can be configured to occupy the same OFDM symbols, and when the RSRPs of the two CSI-RSs received by the two antenna panels are equivalent, the base station expects that the spatial relation info in the two SRS resource configuration parameters is configured as this. CSI-RS resources, so that the optimal PUSCH transmission beam can be further selected through SRS measurement. If the spatial Relation Info parameter of only one SRS resource is configured as the CSI-RS resource, the terminal device needs to use two antenna panels correspondingly. The transmitting beam transmits the SRS, and different SRS ports correspond to different antenna panels. Considering that the antennas in the different antenna panels are not phase-calibrated, the base station cannot indicate a completely coherent codeword for phase weighting of the antennas in different antenna panels. For example, as shown in Figure 10, CSI-RS0 and 1 correspond to the beams of the two antenna panels (the calculated RSRP is determined by the two antenna panels when the terminal device reports CSI-RS 0 and 1) and are allocated to two For the 2-port SRS of channel estimation, for SRS 0, SRS port 0 uses antenna panel 1 and SRS port 1 uses antenna panel 2. If the base station indicates a completely coherent codeword such as [1 1] ^T , the actual transmission The precoding performed between ports during PUSCH is not the precoding indicated by the base station, which will have a great impact on performance.

Through the above detailed introduction, it can be seen that, whether it is uplink transmission based on codebook or uplink transmission based on non-codebook, during the downlink beam training of the base station and the terminal device, the base station can clearly know the terminal The device is used to receive the number of antenna panels corresponding to the receiving beams of all CSI-RS resources sent by the base station. However, when the terminal device reports the RSRP corresponding to the CSI-RS resource with the highest RSRP, it does not carry the antenna panel corresponding to the search beam of the terminal device Information, causing the base station to fail to know the number of receiving beams corresponding to each CSI-RS resource, and the receiving beams correspond to several antenna panels of the terminal device. Therefore, when the base station configures the SRS resources for the terminal device, it cannot be determined whether the configured multiple SRS resources can be in a frequency division multiplexing (FDD) mode, and the base station cannot determine whether the antennas corresponding to the multiple SRS resources can be used for uplink at the same time. transmission. In addition, if there are multiple receive beams corresponding to a CSI-RS resource and the multiple receive beams correspond to multiple antenna panels of a terminal device, the process of configuring SRS resources for actual line transmission will be affected by differences in the precoding matrix. Transmission performance between base station and terminal equipment.

Therefore, this application will provide a transmission method in which the terminal device informs the base station of the corresponding relationship between the receiving beam corresponding to the CSI-RS and the antenna panel of the terminal device, so as to determine the time-frequency resource locations and SRS resources where multiple SRS resources are configured. The number of devices and the corresponding method for transmitting SRS by the terminal equipment, so as to ensure that the terminal equipment uses the correct transmission beam to transmit the SRS or perform uplink transmission, and the base station can use the corresponding receiving beam to receive the SRS and the data or signal transmitted in the uplink to improve transmission performance.

FIG. 12 is a schematic interaction diagram of an example transmission method 1200 according to an embodiment of the present application. Each step of the method 1200 is described in detail below.

It should be understood that, in the embodiment of the present application, the terminal device and the base station are used as the execution subjects of the execution method 1200, and the method 1200 is described. By way of example and not limitation, the execution body of the execution method 1200 may also be a chip applied to a terminal device and a chip applied to a base station.

S1210. The base station sends a reference signal to the terminal device on multiple resources.

Optionally, the downlink reference signal sent by the base station to the terminal device may be a CSI-RS, an SSB, or a DMRS. In the description of the embodiment of the present application, the downlink reference signal is described by taking the CSI-RS as an example. It should be understood that other downlink reference signals are also applicable to the transmission method provided in the embodiment of the present application.

S1220: The terminal device receives the reference signal through multiple receiving beams, and measures the reference signals corresponding to the received multiple resources to determine the receiving status information of each resource, where each resource corresponds to at least one receiving beam.

S1230. The terminal device determines at least one first resource from the multiple resources according to the receiving status information of each resource, where the first resource corresponds to a first receiving beam, the first receiving beam includes at least one receiving beam, and the first A resource is a resource of which the communication quality satisfies a preset condition.

It should also be understood that the reception status information in this application may characterize the signal reception quality or communication quality of the receiving beam or antenna panel used by the terminal device to receive the reference signal, or the channel transmission quality of the received reference signal. Specifically, in the embodiment of the present application, any one of the received signal RSRP or signal-to-noise-interference ratio SINR or signal-to-noise ratio SNR or reference signal received quality RSRQ may be used as the reception status information. The reception status information usually reflects Is the quantized value.

It should also be understood that the downlink reference signal transmitted on multiple resources may be a CSI-RS, a synchronization signal block SSB, or a demodulation reference signal (demodulation reference signal (DMRS)). In the embodiment of the present application, the downlink reference signal is described by taking CSI-RS as an example, that is, the optimal CSI-RS resource introduced in this application is the optimal first resource. In the following description, the terminal device The reported CSI-RS resource has the same meaning as the first resource and can be used interchangeably.

In this application, the first resource refers to a resource that the terminal device has determined from multiple resources to have the best communication quality, and a receiving beam used to receive a reference signal on the first resource is referred to as a first receiving Beam, the first receiving beam may include one receiving beam corresponding to one antenna panel, or N receiving beams corresponding to N antenna panels.

It should also be understood that the number of first resources may be one or more. Taking one first resource as an example, when a terminal device actually receives a CSI-RS carried on the first resource, it uses N receive beams or N antennas. panel. Optionally, the N receiving beams corresponding to the first resource may form the first receiving beam, that is, the quantity information of the N receiving beams is reported to the base station by the terminal device; K beams with better signal reception quality are selected, then the first receive beam corresponding to the CSI-RS resource is composed of the K receive beams, that is, the number of the K beams is reported to the base station by the terminal device , K is a positive integer greater than or equal to 1, and N is a positive integer greater than or equal to K.

In addition, the receiving status information in this application may represent a signal receiving quality or a communication quality of a receiving beam or an antenna panel used by a terminal device to receive a reference signal, or a channel transmission quality of a receiving reference signal. Specifically, in the embodiment of the present application, any one of the received signal RSRP or signal-to-noise-interference ratio SINR or signal-to-noise ratio SNR or reference signal received quality RSRQ may be used as the reception status information. The reception status information usually reflects Is the quantized value.

Alternatively, in the description of the embodiments of the present application, the measurement information is also used to indicate the reception status information. For simplicity of description, the following description mainly uses the reception status information as a reference signal and the received power RSRP as an example. However, this application includes but does not include Not limited to this.

It should be noted here that, in this application, the first resource refers to a terminal device that has determined a resource with better communication quality from multiple resources, and the receiving beam of the first resource is referred to as a first receiving beam. The first receiving beam may be one beam including one antenna panel, or N beams of N antenna panels.

For the processes of S1210-S1230, reference may be made to the downlink beam training process of the prior art described in the foregoing. As shown in the downlink beam training process in the first step of FIG. 11, the base station sends downlink reference signals CSI-RS through eight reference signal resources CSI-RS 0-7, and each CSI-RS resource corresponds to a transmission beam of a base station and a terminal device. Receive beam. After the terminal device receives the CSI-RS resource, it determines the reception status information of the received CSI-RS resource. In the related descriptions below, the measurement parameters of the reference signal resource are used to indicate the reception status information, that is, for each CSI-RS resource, the terminal device can obtain a measurement parameter (an example of the foregoing reception status information). It should be understood that The measurement parameter is used to indicate the reception quality, communication quality of the corresponding CSI-RS resource, or the channel transmission quality of the received reference signal. The larger the measurement parameter quantization value included in the measurement parameter information, the better the reception quality or channel quality of the CSI-RS resource is.

The terminal device obtains eight measurement parameters or quantized values of the measurement parameters for the eight reference signal resources CSI-RS 0-7, and determines at least one optimal first resource based on the obtained eight measurement parameters or quantized values of the measurement parameters. . For example, the largest one of the quantized values of the eight measurement parameters is CSI-RS0, which is the resource with the best communication quality for downlink transmission. The transmission beam of the base station and the receiving beam of the terminal device corresponding to CSI-RS0 are the optimal transmission and reception. Beam; or, the terminal device uses the largest first of the eight quantized values of the measurement parameters as the resources with the best communication quality for downlink transmission, such as CSI-RS0 and CSI-RS4 in FIG. 11 as the communication for downlink transmission For the resource with the best quality, the transmission beams of the base station and the reception beams of the terminal equipment corresponding to CSI-RS 0 and CSI-RS 4 are respectively used as the optimal transmission and reception beams. The number of first resources to be reported is determined according to the reporting parameters configured by the base station, and the base station can configure the number of resources that the terminal device needs to report through the reporting parameters. It should be understood that, in this embodiment of the present application, the number of optimal resources determined by the terminal device is not limited.

Optionally, the number information of the first receiving beams is K, and the receiving state information of the first resource is determined according to the receiving state information of the K receiving beams in the first receiving beam; or used for receiving the reference signal The number of antenna panels is K, and the reception status information of the first resource is determined according to the reception status information of the K antenna panels, and K is an integer greater than or equal to 1.

For example, when the terminal device reports the quantity information of one CSI-RS resource to the base station as K, the measurement information of the one CSI-RS resource is determined by the sum of the K measurement information of the K received beams; and / or the The receiving beam of each CSI-RS resource corresponds to the K antenna panels of the terminal device. The measurement information of each CSI-RS resource is determined by the sum of the K measurement information of the K antenna panels.

It should be understood that the foregoing types are based on the same K receiving beams according to the K receiving beams corresponding to the number K of the first resources reported to the base station by the terminal device and determining the receiving status information of the first resources.

The configuration diagram between the three CSI-RS resources and the receiving beam or antenna panel of the terminal device is shown in FIG. 13. In the figure, it is assumed that the solid beam shows the receiving beam or antenna panel configuration of CSI-RS 0, and the dotted line shows the receiving beam or antenna panel configuration of CSI-RS 1.

Situation (1)

The CSI-RS 0 resource corresponds to the receiving beam 1 and antenna panel 1 of the terminal device, and the CSI-RS 1 resource corresponds to the receiving beam 2 and antenna panel 1 of the terminal device, that is, the two CSI-RS resources in case (1) correspond to the same antenna Two different beams of the panel.

In the case of this receiving method, the measurement information of each CSI-RS resource is determined by the terminal device according to a receiving beam used by the CSI-RS receiving the resource.

Case (2)

The CSI-RS 0 resource corresponds to the receiving beam 1 and antenna panel 1 of the terminal device, and the CSI-RS 1 resource corresponds to the receiving beam 4 and antenna panel 2 of the terminal device, that is, the two CSI-RS resources in case (2) correspond to two different Two different beams of the antenna panel.

The situation of this receiving mode is similar to the above situation (1). The measurement information of each CSI-RS resource is determined by the terminal device according to a receiving beam used by the CSI-RS receiving the resource.

Situation (3)

The CSI-RS0 resource corresponds to the receiving beam 1 of the antenna panel 1 and the receiving beam 3 of the antenna panel 2 and the CSI-RS 1 resource corresponds to the receiving beam 2 and the receiving beam 4 of the antenna panel 1 of the terminal device. That is, each of the two CSI-RS resources in case (3) corresponds to two different beams of two different antenna panels.

In the case of this receiving method, the measurement information of each CSI-RS resource is determined by the terminal device according to the K measurement information corresponding to each of the K receiving beams receiving the resource. For example, the measurement information included in the measurement information of the CSI-RS 0 resource is the measurement parameter of the reference signal carried on the CSI-RS resource received by the beam 1 of the antenna panel 1 and the CSI-RS resource received by the beam 3 of the antenna panel 2 It is obtained by summing the measurement parameters of the reference signals carried on the radio.

It should be understood that the measurement information of the CSI-RS resources is subjected to quantization processing before being reported. The process of quantization processing may be after the summation, or the measurement parameters determined by each received beam may be quantized and then summed up. The application does not limit the sequence of the quantization process of the measurement parameters.

S1240: The terminal device sends information about the quantity of the first receiving beam and receiving state information of the first resource.

S1250: The base station determines the first receiving beam and the first resource.

Through the processes of S1210-S1230, the terminal device determines at least one first resource with optimal communication quality, beam information corresponding to each first resource, and measurement information of each first resource, and then the terminal device may The beam information corresponding to the resource and the measurement information of each first resource are sent to the base station.

Optionally, the terminal device may further send identification information of the first resource, and the identification information of the first resource may be carried in the same message as the quantity information of the first received beam and measurement information of the first resource.

For example, when the base station configures a terminal device with a CSI-RS resource for downlink beam training through high-level signaling, and the base station configures the terminal device to report information to the first receiving beam corresponding to one CSI-RS resource through high-level signaling. When the quantity information and the corresponding reception status information, the terminal device does not need to report the identification information of the resource.

Alternatively, when the base station configures multiple CSI-RS resources for the terminal device through high-level signaling, and the base station configures the terminal device to report information through high-level signaling as the number of first receiving beams corresponding to the multiple CSI-RS resources and corresponding When receiving the status information, the terminal device does not need to report the identification information of the resources, and only reports the number information of the first receiving beams corresponding to each resource and the corresponding receiving status information.

Or, when the base station configures multiple CSI-RS resources for the terminal device, and the base station configures the terminal device to report information to the number of first receiving beams corresponding to some CSI-RS resources in the multiple CSI-RS resources through high-level signaling Information and corresponding reception status information, the terminal device will select a part of the CSI-RS resource with better communication quality from multiple resources. The terminal device needs to report the identification information of the part of the CSI-RS resource, and the part of the CSI-RS resource It should be understood that this is the first resource in the present application, that is, the terminal device sends identification information of the first resource, information about the number of received beams corresponding to the first resource, and measurement information of each first resource to the base station.

It should be understood that regardless of whether or not the identification information of the first resource is reported, as long as the scheme of reporting the number of received beams corresponding to the first resource falls within the protection scope of this application.

Optionally, the number information of the first reception beams includes the number information of the reception beams included in the first reception beam or the identification information of the reception beams included in the first reception beam, or the number information of the first reception beams. This includes the number or identification of antenna panels used to receive the reference signal.

It should be understood that, in the embodiment of the present application, each of the receiving beams of each CSI-RS resource corresponds to a different antenna panel of the terminal device. It can be understood that for the same CSI-RS resource, only one antenna panel There is a receive beam. If the receiving beam of a CSI-RS resource includes N beams, the N beams must correspond to N antenna panels.

Assume that a receiving beam of a CSI-RS resource includes N beams, and the number of beams reported by the terminal device is K. When the first receiving beam includes a receiving beam or an antenna panel corresponding to the terminal device, the K is determined. Is 1; when the first receiving beam includes multiple receiving beams or multiple antenna panels corresponding to a terminal device, determine the value of K according to measurement information of the multiple receiving beams included in the first receiving beam, or according to the first The measurement information of the plurality of antenna panels of the receiving beam corresponding to the terminal device determines the value of K.

With reference to FIG. 13, both the case (1) and the case (2), one CSI-RS resource corresponds to one receiving beam, and if the terminal device determines the CSI-RS0 resource as the first resource, the terminal device can report to the base station The number of receiving beams is 1, or the number of receiving antenna panels is 1. In case (3), one CSI-RS resource corresponds to two receiving beams. If the terminal device determines the CSI-RS0 resource as the first resource, the terminal device can report the number of receiving beams 2 to the base station, or the receiving antenna. The number of panels is two.

Specifically, when a receiving beam of a CSI-RS resource includes multiple beams or multiple antenna panels corresponding to a terminal device, if the number of beams reported by the terminal device is K, the K receiving beams satisfy the following three At least one of these situations:

(1) The difference between any two of the K measurement information of the K received beams is less than or equal to the first threshold, and / or any two of the K measurement information of the K antenna panels The difference is less than or equal to the first threshold.

(2) The ratio of any two measurement information of the K measurement information of the K received beams is less than or equal to the second threshold, and / or the ratio of any two measurement information of the K measurement information of the K antenna panels Less than or equal to the second threshold.

(3) The difference between the largest measurement information and the smallest measurement information in the K measurement information of the K received beams is less than or equal to the third threshold, and / or the largest of the K measurement information of the K antenna panels The difference between the measurement information and the smallest measurement information is less than or equal to the third threshold.

It should be understood that, in the embodiment of the present application, the threshold (for example, the first threshold to the fifth threshold) may be a preset constant, a constant configured by higher layer signaling, or a constant configured by physical layer signaling. In the embodiment of the present application, the high-level signaling may be radio resource control (RRC) signaling or MAC layer signaling; the physical layer signaling may be DCI. The embodiment of the present application does not limit the method for configuring the threshold.

Optionally, if the information about the number of beams reported by the terminal device is K, the K receiving beams may also satisfy at least one of the following two cases:

(1) The difference between the measurement information of any of the K measurement information of the K reception beams and the measurement information of any one of the NK reception beams other than the K reception beams is greater than the fourth threshold, and / or K The difference between any one of the K measurement information of each antenna panel and the measurement information of any one of the NK antenna panels other than the K antenna panels is greater than a fourth threshold; or

(2) The ratio of the measurement information of any one of the K measurement information of the K reception beams to the measurement information of any one of the NK reception beams other than the K reception beams is greater than the fifth threshold, and / or K The ratio of any one of the K measurement information of the antenna panel to the measurement information of any one of the NK antenna panels other than the K antenna panels is greater than a fifth threshold.

Taking the case where one CSI-RS resource corresponds to two receiving beams of two antenna panels as an example, the purpose of introducing the first threshold to the fifth threshold is that when a terminal device is used to receive two antenna panels of the CSI-RS resource at the same time When the values of the RSRP values of the two beams are very different, the antenna panel with a smaller RSRP value does not bring significant performance improvement for uplink data transmission, but instead increases the time-frequency resource overhead. For example, uplink resources are configured at the base station. At this time, the number of configured SRS resources is increased, so at this time, the terminal device may not report the information of the antenna panel with the smaller RSRP value. Therefore, the beams reported to the base station are determined according to the conditions listed above, and only the beams of the antenna panel with better communication quality are retained, while saving the resource overhead of the resource allocation process and improving the transmission performance.

Optionally, the measurement information of the CSI-RS resource corresponds to the received beam information of the CSI-RS resource. For example, when a terminal device receives the CSI-RS resource with two receiving beams corresponding to two antenna panels at the same time, and determines that the number of receiving beams of the CSI-RS resource is 1 according to the above principle, then the measurement of the CSI-RS resources reported at the same time The information is measurement information of the reported beam.

When the RSRP values of the two antenna panels used by the terminal device to receive a CSI-RS resource at the same time are equal, then the number of beams of the two antenna panels needs to be reported to the base station. How to use two antennas in the end The panel needs to be further determined according to the measurement of the uplink beam, that is, the SRS is sent to the base station through the terminal device. After the SRS measurement, the base station can further determine the beam corresponding to the antenna panel with the best communication quality, thereby improving the transmission performance.

During the process in which the terminal device reports the number of received beams to the base station, the number of first received beams to be reported has been determined according to the above scheme. In addition, the following describes in detail the resources through which the terminal device reports the number of first received beams And how to report information about the number of first received beams.

Optionally, before receiving the CSI-RS resources and reporting the number of received beams to the base station according to the measurement result, the terminal device receives first reporting configuration information sent by the base station, where the first reporting configuration information is used to instruct reporting of the first receiving beam The number of bits of the quantity information, or the number of bits used to instruct the terminal device to report the maximum number of the first receiving beams included in the quantity information of the first receiving beam or the number of bits reporting the reception status information.

It should be understood that, in a possible implementation manner, for each reported CSI-RS resource, the terminal device reports only one reception status information corresponding to the CSI-RS resource, and the reception status information may be a quantized value The reporting form may be X bits, and the X bits correspond to a quantization value interval. Each state value of the X bits corresponds to a specific quantization value in the quantization value interval. The encoding of the X bits is based on the The reception status information determined by the CSI-RS resource measurement is determined.

In addition, the terminal device needs to report the number of received beams of the first resource, and the number of received beams can be jointly encoded with the reception status information (such as measurement parameters) or independently encoded.

The number of bits of the above information reported by the terminal device may be determined according to the first reporting configuration information sent by the base station. The base station may configure at least one reporting configuration set through high-level signaling. The high-level signaling may be RRC signaling or MAC CE signaling. The reporting configuration set may include the first reporting configuration information. The multiple CSI-RS resources (including each first resource to be reported) are associated with the same reporting configuration set. In this way, the terminal device performs measurement on multiple CSI-RS resources associated with it according to the configuration parameters included in the associated reporting configuration set, and reports the measurement results.

For example, if the base station indicates that the maximum amount of information is L through the first report configuration information, it indicates that the terminal device reports the number of receiving beams corresponding to each first resource or the number of bits of the antenna panel used for the report is Log ₂ L. Each state value corresponds to the number of receiving beams or antenna panels used to receive the first resource, and a specific relationship between the state value and the quantity information may be defined in advance.

Based on the number of pieces of receiving beam information corresponding to each first resource, the number of bits of the receiving status information can be understood as the number of first resources reported by the terminal device.

For example, the first report configuration information sent by the base station to the terminal device indicates that the maximum number of reportable receive beams of the terminal device is L, and the number of bits of the reported reception status information is m. Taking all the absolute quantization values as an example, the total number of reported bits at this time is L * m, where m is the number of reported bits of each reception status information, and each status value in m bits corresponds to a quantization value of the reception status information . For example, if the number of antenna panels supported by the terminal device is 4, each receiving status information is 2 bits, and the number of received beam information and the receiving status information are jointly coded as an example. At this time, the base station can configure the reported number of bits to be 8 Bit,

Specifically, the status value corresponding to a first resource reported by the terminal device is 00000000-00000011, which indicates that the number of receiving beams currently receiving the first resource is 1, and each status value corresponds to a quantized value of the receiving status information; status A value of 00000100-00001111 indicates that the number of receiving beams currently receiving the first resource is 2, and each status value corresponds to a quantized value of the receiving status information; a status value corresponding to a first resource reported by the terminal device is 00010000- 00111111 indicates that the number of receiving beams currently receiving the first resource is 3, and each status value corresponds to a quantized value of the receiving status information; the status value of 01000000-00001111 indicates that the number of receiving beams currently receiving the first resource is 4, And each state value corresponds to a quantized value of the received state information.

In a possible implementation manner, when the number of the first resources is a positive integer greater than or equal to 2, the terminal device may further determine first indication information, where the first indication information is used to indicate that the M first resources are received. Whether the beam can send uplink information at the same time and send the first indication information to the base station.

In addition, when the terminal device reports RSRPs corresponding to multiple CSI-RS resources, the base station needs to know whether multiple CSI-RS resources can be received simultaneously, that is, whether multiple CSI-RS receive beams can be used for uplink transmission at the same time.

One method is to report the display mode of the terminal device, that is, the terminal device needs to report whether multiple CSI-RS resources can be received at the same time in addition to reporting the number of receiving antenna panels corresponding to each CSI-RS resource. For example, the terminal device groups the index values of the CSI-RS resources that need to be reported. When reporting each RSRP, it also reports the group number corresponding to the value, the number of groups and the number of CSI-RS resources to be reported, and the terminal device. Take the minimum number of reported antenna panels.

When the number of CSI-RS resources that the terminal device needs to report and the maximum number of antenna panels supported by the terminal device are two, when the receiving beams corresponding to the two CSI-RSs come from one antenna panel, both CSI-RSs are equal. Report 1. Taking case (1) in FIG. 13 as an example, the terminal device determines the beam 1 of the antenna panel 1 corresponding to the CSI-RS 0, and determines the beam 2 of the antenna panel 1 corresponding to the CSI-RS 1, then two CSI-RS Both report 1 to the base station.

When the receiving beams corresponding to the two CSI-RSs come from 2 antenna panels, one CSI-RS reports 1 and the other CSI-RS reports 2 to notify the base station that the beams of the two antenna panels can be used for uplink simultaneously. transmission. Alternatively, the number of antenna panels corresponding to each CSI-RS reported by the terminal device and whether multiple CSI-RSs can simultaneously receive information joint coding, that is, the terminal device directly reports which antenna panels correspond to each CSI-RS, and the total reported amount can be based on The following formula (1) is used for calculation:

Among them, N is the number of reported CSI-RS index values configured by high-level signaling, and P is the total number of antenna panels supported by the terminal device;

Rounding up.

For uplink transmission, taking into account issues such as design complexity, SRS resources, and DCI signaling overhead, the maximum number of antenna panels for uplink transmission is usually limited to 2, and the total reported amount calculated by the above formula (1) can also be expressed For formula (2):

Another method is to determine by the implicit method of the terminal device. In addition to the number of receiving antenna panels corresponding to each CSI-RS resource, the terminal device also needs to report whether multiple CSI-RS resources can be received at the same time. The information about whether the reported CSI-RS resources can be transmitted at the same time is reported together with the number of receiving antenna panels corresponding to each CSI-RS resource. After the base station receives the reported information, when multiple resources are configured for the reported information that can be transmitted simultaneously, it can be configured that the multiple resources can be transmitted simultaneously; when multiple resources are configured for other information that cannot be transmitted simultaneously, it can be configured as The multiple resources cannot be transmitted at the same time.

The corresponding relationship between the receiving beam corresponding to the CSI-RS resources notified by the terminal device to the base station and the antenna panel of the terminal device has been described in detail above, so as to determine the time-frequency resource locations where multiple SRS resources are configured, the number of SRS resources and the corresponding terminals The method for the device to send the SRS, thereby ensuring that the terminal device uses the correct transmission beam to send the SRS or perform uplink transmission, and the base station can use the corresponding receiving beam to receive the SRS and uplink transmitted data or signals, thereby improving transmission performance.

In addition to the terminal device directly reporting the beam information or antenna panel information corresponding to each CSI-RS resource to the base station, the terminal device may also report other information to enable the base station to learn the beam information or antenna panel information.

In another possible implementation manner, when the terminal device reports the index value of each first resource, it reports the information of the K receiving beams used for receiving the first resource or the K receiving beams of the K antenna panels.

Optionally, the number information of the first receiving beams is K, and the measurement information of the first resource includes K measurement information of the K receiving beams, and the terminal device sends the number of the first receiving beams K and the K receiving beams to the base station. K measurement information.

Since the base station actually does not know the number of receiving beams or antenna panels used by the terminal device to receive each CSI-RS, it is also unclear about the actually required number of reported bits. For example, the base station configures the terminal device with a maximum of two CSI-RS resource identification information and the RSRP quantization value of each receiving beam used for receiving the two CSI-RS. When the terminal device receives both CSI-RS When two antenna panels are used, the terminal equipment actually needs to report four RSRP quantized values. When the terminal equipment receives two CSI-RSs and uses one antenna panel, the terminal equipment actually only needs to report two RSRP quantized values, so the base station only It can allocate the uplink resources carrying the corresponding reporting information according to the maximum reporting amount of the terminal equipment, that is, the reporting can be determined according to the maximum number of CSI-RS identification information and each CSI-RS can be determined according to the maximum number of antenna panels that the terminal equipment can support. The number of bits is thus allocated for reporting resources.

However, since the number of receiving beams or antenna panels determined by the terminal device to receive each CSI-RS will change dynamically, doing so will cause a large waste of resources. Therefore, the base station can configure uplink resources through high-level signaling, or the uplink resources are determined according to predefined rules. The time-frequency resources occupied by the uplink resources can be determined according to a certain reporting amount, which includes the CSI-RS to be reported. The amount of identification information and the total number of RSRP quantization values corresponding to a certain number of receive beams or antenna panels for each CSI-RS. The total number of bits occupied by the reported information corresponding to the uplink resource is also indicated to the terminal device through high-level signaling. The terminal device may adjust the CSI-RS resource corresponding to each RSRP quantized value by itself according to the total number of bits of the RSRP quantized value or the number of RSRPs to be reported in each report.

Optionally, the specific adjustment method may be, for example, the base station configures the terminal device to report the identification information of K CSI-RS resources and the corresponding number of RSRP quantization values as K, that is, the possible reporting methods are K CSI-RS resources, respectively. Corresponds to one RSRP quantized value or one CSI-RS resource of K CSI-RS resources corresponds to K RSRP quantized values. When K CSI-RS resources to be reported all need to report more than one receive beam or antenna panel corresponding When the RSRP is quantized, the terminal device may select a part of the RSRP information to report according to the actual measurement result, and the reported information needs to carry identification information of the CSI-RS resource. At this time, the number of identification information of the CSI-RS resources configured by the base station can be understood as the maximum number of identification information of the CSI-RS resources.

For example, when the terminal device receives CSI-RS resource 0 and uses antenna panel 0 and antenna panel 1, and receives CSI-RS resource 1 and uses antenna panel 1 and antenna panel 2, the RSRP corresponding to the RSRP measurement information is the reception status information that needs to be reported. When the uplink resources configured by the base station to carry the reported information correspond to four RSRP quantized values, the terminal device will report identification information of CSI-RS resource 0 and CSI-RS resource 1 and the corresponding information of each CSI-RS resource. RSRP quantized values of the two antenna panels and the number of antenna panels; when the uplink resources configured by the base station to carry the above reported information correspond to only two RSRP quantized values, the terminal device will determine the reported CSI- based on the RSRP comparison. Identification information of RS resource 0 and CSI-RS resource 1 and the RSRP quantization value of one antenna panel and the number of antenna panels corresponding to each CSI-RS resource, or report identification information of CSI-RS resource 0 and CSI-RS RSRP quantized values of the two antenna panels corresponding to the resource 0 and the number of antenna panels.

Further, the number of reported antenna panels is determined based on the RSRP difference of each antenna panel used to receive signals on the CSI-RS resource. When there are only two receivers for receiving CSI-RS, When the RSRP difference corresponding to the antenna panel is less than the first threshold, the terminal device reports that the number of antenna panels used to receive the CSI-RS is 2; or when there are only one and two receiving antennas for receiving the CSI-RS When the RSRP ratio corresponding to the panel is less than the second threshold, the terminal device reports that the number of antenna panels used to receive the CSI-RS is two.

Optionally, the base station also needs to configure whether the current RSRP and the index value of the first resource are reported for uplink transmission or downlink transmission. Only when the reported amount is used for uplink transmission, the measurement information is reported using the above-mentioned reporting method; otherwise, the terminal The device only needs to report the identification information of each CSI-RS and the corresponding RSRP quantized value without reporting the number of received beams or the number of antenna panels.

At this time, since the terminal device re-opens the antenna panel or switches the activated antenna panel, preparation time is required, for example, including the time for transmitting and receiving phase calibration. The terminal device cannot close the receiving antenna panel of the CSI-RS corresponding to the CSI-RS identification information allocated to the SRS, or the terminal device cannot close the transmitting antenna panel of the SRS corresponding to the identification information of the SRS allocated to the SRS.

The above introduces several types of terminal devices that report different information content and different reporting methods to the base station. The base station can learn the corresponding relationship between the corresponding receiving beam of each CSI-RS resource and the antenna panel of the terminal device. According to the determined resources, the base station can configure available resources with good communication quality for the SRS transmission of the terminal device to ensure the transmission quality. The following describes several possible ways for a base station to configure resources for a terminal device.

Generally speaking, the CSI-RS resources reported by the terminal device to the base station are the resources with the best communication quality during the downlink beam training process. The base station can use these CSI-RS resources according to the uplink data or information bit size that the terminal device needs to transmit. Make flexible configuration.

Optionally, when the identification information of the uplink beams of the two SRS resources configured by the base station are both CSI-RS index values, that is, the index values of the CSI-RS are used to indicate the uplink beams and uplink resources of the SRS resources. The above row beam identification is taken as an example. When the uplink beam identification of two SRS resources indicates the same CSI-RS and the number of receiving antenna panels corresponding to the CSI-RS is two, when the terminal device sends two SRSs, two antennas are used respectively. The panel receives the two receiving beams of the CSI-RS for transmission, and the two SRS resources configured by the base station can be transmitted simultaneously for uplink transmission.

When the base station configures the identification information of an uplink beam of an SRS indicating an index value of a CSI-RS and the number of receiving antenna panels corresponding to the CSI-RS is 2, the terminal device determines an antenna panel with a larger RSRP when receiving the CSI-RS. As an antenna panel for transmitting SRS, at this time, the base station only uses a beam of the antenna panel with a larger RSRP to receive the CSI-RS as an uplink beam.

In a possible implementation manner, for codebook-based uplink transmission, when the maximum coherent transmission capability of the terminal device is not completely coherent transmission, when the base station configures the identification information of an uplink beam of an SRS to indicate a CSI-RS Index value, and when the number of receiving antenna panels corresponding to the CSI-RS is 2, for a terminal device with partial coherent transmission capability, the terminal device can determine the 2 antenna panels with the largest RSRP when receiving the CSI-RS as antennas for transmitting SRS In addition, the terminal device can use two antenna panels to send SRS respectively. For terminal equipment with non-coherent transmission capability, the terminal device can determine the four antenna panels with the largest RSRP when receiving the CSI-RS as the antenna panel for transmitting SRS. That is, the uplink beams used to send the SRS are transmitted using four antenna panels or some of the uplink beams are transmitted using different antenna panels.

Through the above introduction, during the downlink beam training process, the terminal device reports the quantized RSRP value of each CSI-RS resource, and simultaneously reports the number of receiving beams and the number of antenna panels used to calculate the RSRP, or supports the terminal device. Report the number of receiving antenna panels for each CSI-RS. Therefore, the base station can determine how to configure uplink transmission resources and transmission methods for the terminal device based on the reported CSI-RS resources with the best communication quality, and reasonably configure the corresponding SRS time-frequency resources and beam indication information. The terminal devices will use the same Assume that the SRS is transmitted, and the base station will receive the SRS with the same assumption to ensure the reliability of the uplink transmission.

It should be understood that the above technical solution is mainly that the optimal downlink transmission resource reported by the base station through the terminal device is used as the uplink resource for uplink transmission. However, there may be situations where some reference signal resources are not suitable for uplink transmission. Therefore, to ensure the highest quality of uplink transmission and improve the reliability of transmission, the most fundamental method is to perform uplink beam training. Select the optimal uplink transmission resource.

Therefore, this application also provides another transmission method. The terminal device is used to trigger the base station to perform uplink beam training, so that the base station can determine accurate uplink transmission beam information and corresponding SRS and PUSCH configuration information, that is, determine to configure multiple SRS resources. Time-frequency resource location, the number of SRS resources, and the corresponding terminal device's method of sending SRS, thereby ensuring that the terminal device uses the correct transmit beam to send SRS or perform uplink transmission, and the base station can use the corresponding receive beam to receive SRS and uplink transmission. Data or signal, improve transmission performance more accurately.

FIG. 14 is a schematic interaction diagram of another transmission method 1400 provided by an embodiment of the present application. Each step of the method 1400 is described in detail below.

It should be understood that, in the embodiment of the present application, the terminal device and the base station are used as the execution subjects of the execution method 1400, and the method 1400 is described. By way of example and not limitation, the execution body of the execution method 1400 may also be a chip applied to a terminal device and a chip applied to a base station.

S1410: The terminal device generates a first message when the first preset condition is used, and the first message is used to instruct the terminal device to send a first uplink reference signal on the first uplink resource.

S1420. The terminal device sends a first message to the base station.

Optionally, the first preset condition includes at least one of the following situations:

(1) The uplink beam used by the terminal device to send the second uplink reference signal is configured as a resource identifier of the downlink reference signal, and the second uplink reference signal is used for channel measurement.

In other words, the uplink beam used by the terminal device to send the uplink reference signal is configured as a resource identifier of the downlink reference signal. For example, when the transmission beam of the SRS based on codebook uplink transmission or non-codebook uplink transmission is configured as the CSI-RS identification information, the terminal device may send the first message to the base station. Used to notify the base station to trigger uplink beam training. It should be understood that the transmission beams of the SRS resources trained by the uplink beam are transmitted using multiple antenna panels corresponding to the reception beams receiving the CSI-RS.

(2) The number of receiving beams for receiving the downlink reference signal by the terminal device or the number of antenna panels used for receiving the downlink reference signal is greater than one.

It should be understood that the first resource may be a resource used to carry the downlink reference signal during a downlink beam training process. For example, when the terminal device determines that the number of receiving beams of the CSI-RS resources with the best communication quality reported to the base station is greater than 1 during the downlink beam training process, or that the number of antenna panels corresponding to at least one CSI-RS resource is greater than 1, the terminal The device may send the first message to the base station. Used to notify the base station to trigger uplink beam training.

(3) The difference between any two pieces of reception status information of the plurality of reception status information corresponding to the plurality of reception beams of the downlink reference signal received by the terminal device is less than or equal to the first threshold, or the terminal device receives the downlink reference The difference between any two reception status information among multiple reception status information corresponding to multiple antenna panels used by the signal is less than or equal to the first threshold.

For example, when the terminal device determines in the downlink beam training process that the quantized values of multiple measurement parameters corresponding to multiple antenna panels of the CSI-RS resources with the best communication quality reported to the base station are close, the terminal device may send the first A message. Used to notify the base station to trigger uplink beam training.

S1430: The base station generates downlink control information DCI.

S1440: The base station sends DCI to the terminal device to perform reference signal resource configuration, that is, the base station configures the terminal device with a reference signal resource or a set of reference signal resources for uplink beam training through the DCI.

After the base station receives the trigger message sent by the terminal device,

Optionally, the terminal device generates a second message according to the number of the first resource and the number of beams receiving the first resource or the number of corresponding antenna panels, where the second message is used to indicate the first uplink resource information and Send information about the number of uplink receive beams used by the reference signal on the uplink resource, and send the second message to the network device.

For example, the terminal device may also notify the base station of the number of SRS resources that triggers uplink beam training and the corresponding transmit beams, where the number of SRS resources may be the terminal device configured for SRS for codebook transmission / non-codebook transmission The number of identification information of the CSI-RS and the number of receiving antenna panels corresponding to each CSI-RS are determined.

Specifically, when the number of CSI-RS identification information reported by the terminal device is two and the number of receiving antenna panels corresponding to each CSI-RS is two, the number of SRS resources notified by the terminal device to the base station for uplink beam training is four. , And the SRS on the 4 SRS resources are respectively transmitted by receiving 4 receiving beams corresponding to the 2 CSI-RSs, the base station also knows that the corresponding SCSI-RS beams are used to receive the SRSs. Among them, since the identification information of the same CSI-RS will correspond to multiple transmission times regardless of periodic transmission or aperiodic trigger, and the transmit and receive beams used at each transmission time may be different, the CSI-RS identification information corresponds to notifying the base station to trigger the uplink. Beam training Receive beam used for the most recent CSI-RS transmission.

Optionally, the trigger message (first message) is a scheduling request message, such as a scheduling request (SR), sent by the terminal device to the network device.

Alternatively, the trigger message (first message) is carried in a periodic uplink resource allocated by the base station to the terminal device.

For example, the notification information used by the terminal device to notify the base station to trigger uplink beam training needs to occupy uplink resources allocated by the base station. Therefore, before sending the notification, the terminal device needs to notify the base station to allocate uplink resources to carry the notification. The notification method may be:

method one

The terminal device sends a scheduling request SR to the base station to make an uplink data request, and the data request is used to notify the base station to trigger uplink beam training.

Way two

The base station allocates periodic uplink resources to the terminal equipment in advance, and the uplink resources are used to notify the base station to trigger uplink beam training. The size of the uplink resources can be adjusted by the base station according to the beam information of the SRS configured by the base station.

Way three

When the base station triggers aperiodic CSI report and the content of the CSI report is RSRP, the terminal device can simultaneously report whether to notify the base station to trigger the corresponding uplink beam training process. When the base station allocates corresponding uplink resources to the terminal device, if it is reserved for If the uplink resource carrying the report information is reported, the terminal device reports the report information.

The base station triggers the SRS resource / SRS resource set through the SRS request field in the DCI. The index number of the SRS resource / SRS resource set and the time-frequency resource allocation information can be indicated through high-level signaling. The number of SRS resources can only be pre-configured. The maximum value, the SRS transmit beam is determined based on the receive beam corresponding to the CSI-RS ID configured for the SRS.

Through the above technical solution, the terminal device notifies the base station of a mechanism for triggering uplink beam training, so that the base station can determine accurate uplink transmission beam information and corresponding configuration information of SRS and PUSCH. In addition, the terminal device can also notify the base station of the number of SRS resources used for uplink beam training and corresponding transmission beams, thereby reducing resource overhead and improving transmission performance.

The method for transmitting feedback information according to the embodiment of the present application has been described in detail with reference to FIGS. 1 to 14. Hereinafter, the feedback information transmission device according to the embodiment of the present application will be described in detail with reference to FIGS. 15 to 20.

FIG. 15 shows a schematic block diagram of a transmission device 1500 according to an embodiment of the present application. The device 1500 may correspond to the terminal device described in the foregoing method 1200, and may also be a chip or component applied to the terminal device. Each module or unit is respectively configured to perform each action or processing process performed by the terminal device in the foregoing method 1200. As shown in FIG. 15, the communication device 1500 may include a processing unit 1510 and a communication unit 1520.

A processing unit 1510, a processing unit, configured to determine reception state information of a reference signal carried on each first resource of at least one first resource, where each first resource corresponds to a first receiving beam, and the first receiving beam Including at least one receive beam.

The communication unit 1520 sends information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource.

Specifically, the processing unit 1510 is used to execute S1220 and S1230 in method 1200, and the communication unit 1520 is used to execute S1240 in method 1200. The specific process of each unit performing the above corresponding steps has been described in detail in method 1200. , I won't go into details here.

FIG. 16 shows a schematic block diagram of a transmission device 1600 according to an embodiment of the present application. The device 1600 may correspond to the terminal device described in the foregoing method 1400, or may be a chip or component applied to the terminal device. Each module or unit is respectively configured to perform each action or processing performed by the terminal device in the foregoing method 1400. As shown in FIG. 16, the communication device 1600 may include a processing unit 1610 and a communication unit 1620.

The processing unit 1610 is configured to generate a first message when the first preset condition is used, and the first message is used to trigger the terminal device to send a first uplink reference signal.

The communication unit 1620 is configured to send a first message.

Optionally, the first preset condition includes: an uplink beam used by the terminal device terminal device to send the second uplink reference signal is configured as a resource identifier of the downlink reference signal, and the second uplink reference signal is used for channel measurement; and / Or the number of receiving beams of the downlink reference signal received by the terminal device or the number of antenna panels used to receive the downlink reference signal is greater than 1; and / or multiple receiving states corresponding to multiple receiving beams of the terminal device receiving the downlink reference signal The difference between any two reception status information in the information is less than or equal to the first threshold, or any two reception statuses in the plurality of reception status information corresponding to multiple antenna panels used by the terminal device to receive the downlink reference signal The difference between the information is less than or equal to the first threshold.

Specifically, the processing unit 1610 is used to execute S1410 in method 1400, and the communication unit 1620 is used to execute S1420 in method 1400. The specific process of each unit performing the above corresponding steps has been described in detail in method 1400. For simplicity, this I will not repeat them here.

FIG. 17 shows a schematic block diagram of a transmission device 1700 according to an embodiment of the present application. The device 1700 may correspond to (for example, be applicable to or be itself) the base station described in the foregoing method 1200, and each module in the device 1700 The OR units are respectively used to perform various actions or processing processes performed by the base station in the foregoing method 1200. As shown in FIG. 17, the communication device 1700 may include a processing unit 1710 and a communication unit 1720.

A communication unit 1710 is configured to send a reference signal through at least one first resource, where the reference signal is carried on multiple resources, and each first resource corresponds to a first receiving beam of a terminal device, where the first receiving beam includes at least One receive beam.

The communication unit 1710 is further configured to receive information about the number of first receiving beams and receiving state information of a reference signal carried on each first resource.

The processing unit 1720 is configured to determine the first receiving beam and the first resource.

Specifically, the communication unit 1710 is used to execute S1210 in method 1200, and the processing unit 1720 is used to execute S1250 in method 1200. The specific process of each unit performing the above corresponding steps has been described in detail in method 1200. I will not repeat them here.

FIG. 18 shows a schematic block diagram of a transmission device 1800 according to an embodiment of the present application. The device 1800 may correspond to (for example, be applicable to or be itself) the base station described in the foregoing method 1400, and various modules in the device 1800. The OR units are respectively used to perform various actions or processing processes performed by the base station in the foregoing method 1400. As shown in FIG. 18, the communication device 1800 may include a processing unit 1810 and a communication unit 1820.

The communication unit 1810 is configured to receive a first message, and the first message is used to trigger the terminal device to send a first uplink reference signal.

A processing unit 1820 is configured to generate downlink control information DCI, where the DCI is used to instruct the terminal device to send a first uplink resource of the uplink reference signal.

The communication unit 1810 is further configured to send the DCI.

Specifically, the communication unit 1810 is used to execute S1440 in method 1400, and the processing unit 1820 is used to execute S1430 in method 1400. The specific process of each unit performing the above corresponding steps has been described in detail in method 1400. I will not repeat them here.

FIG. 19 is a schematic structural diagram of a terminal device 1900 according to an embodiment of the present application. As shown in FIG. 19, the terminal device 1900 includes a processor 1910 and a transceiver 1920. Optionally, the terminal device 1900 further includes a memory 1930. Among them, the processor 1910, the transceiver 1920, and the memory 1930 communicate with each other through an internal connection path to transfer control and / or data signals. The memory 1930 is used to store computer programs, and the processor 1910 is used to call from the memory 1930. The computer program is run to control the transceiver 1920 to send and receive signals.

The processor 1910 and the memory 1930 may be combined into a processing device, and the processor 1910 is configured to execute program codes stored in the memory 1930 to implement functions of the terminal device in the foregoing method embodiment. In specific implementation, the memory 1930 may also be integrated in the processor 1910, or may be independent of the processor 1910. The transceiver 1920 can be implemented by means of a transceiver circuit.

The above terminal device may further include an antenna 1940 for sending uplink data or uplink control signaling output by the transceiver 1920 through a wireless signal, or sending downlink data or downlink control signaling to the transceiver 1920 for further processing after receiving.

It should be understood that the device 1900 may correspond to the terminal device in the method 1200 or the method 1400 according to the embodiment of the present application, and the device 1900 may also be a chip or a component applied to the terminal device. In addition, each module in the apparatus 1900 implements the corresponding process in the method 1200 in FIG. 12, or each module in the apparatus 1900 implements the corresponding process in the method 1400 in FIG. 14. Specifically, the memory 1930 is configured to store program code, so that when the processor 1910 executes the program code, the processor 1910 is controlled to execute S1220 and S1230 in method 1200, and the transceiver 1920 is used to execute the method 1200. S1240, or the memory 1930 is used to store program code, so that when the processor 1910 executes the program code, the processor 1910 controls the processor 1910 to execute S1410 in method 1400, and the transceiver 1920 is used to execute S1420 in method 1400 . The specific process of each unit performing the above corresponding steps has been described in detail in the method 1200 and the method 1400, and for the sake of brevity, it will not be repeated here.

FIG. 20 is a schematic structural diagram of a network device 2000 according to an embodiment of the present application. As shown in FIG. 20, the network device 2000 (for example, a base station) includes a processor 2010 and a transceiver 2020. Optionally, the network device 2000 further includes a memory 2030. Among them, the processor 2010, the transceiver 2020, and the memory 2030 communicate with each other through an internal connection path, and transfer control and / or data signals. The memory 2030 is used to store a computer program, and the processor 2010 is used to call from the memory 2030. And run the computer program to control the transceiver 2020 to send and receive signals.

The processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to implement the functions of the base station in the foregoing method embodiment. In specific implementation, the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010. The transceiver 2020 can be implemented by means of a transceiver circuit.

The above network device may further include an antenna 2040 for sending downlink data or downlink control signaling output by the transceiver 2020 through a wireless signal, or sending uplink data or uplink control signaling to the transceiver 820 for further processing after receiving.

It should be understood that the device 2000 may correspond to a base station in the method 1200 or the method 1400 according to the embodiment of the present application, and the device 2000 may also be a chip or a component applied to a base station. In addition, each module in the apparatus 2000 implements a corresponding process in the method 1200 in FIG. 12 or the method 1400 in FIG. 14. Specifically, the memory 2030 is used to store program code, so that when the processor 2010 executes the program code, the processor 2010 controls the processor 2010 to execute S1250 in the method 1200, and the transceiver 2020 is used to execute S1210 in the method 1200. Alternatively, the memory 2030 is used to store program code, so that when the processor 2010 executes the program code, the processor 2010 is controlled to execute S1430 in method 1400, and the transceiver 2020 is used to execute S1440 in method 1400. The specific process for each unit to perform the above corresponding steps has been described in detail in method 1200 and method 1400, and for the sake of brevity, it will not be repeated here.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage media include: U disks, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks or compact discs, and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A transmission method, comprising:

Determining reception state information of a reference signal carried on each first resource of at least one first resource, where each first resource corresponds to a first receiving beam, and the first receiving beam includes at least one receiving beam;

Sending information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource.
The method according to claim 1, wherein the number of the first reception beams includes the number of the reception beams included in the first reception beam or an identification of the reception beams included in the first reception beam. Information, or

The quantity information of the first receiving beam includes quantity or identification information of an antenna panel used for receiving the reference signal.
The method according to claim 1 or 2, wherein the quantity information of the first receiving beam is quantity K or K pieces of the identification information, and K is a positive integer greater than or equal to 1, and the method further comprises :

Determining that K is 1 when the first receiving beam includes one receiving beam or using an antenna panel for receiving the reference signal;

When the first receiving beam includes a plurality of receiving beams, determining a value of K according to reception state information of the plurality of receiving beams included in the first receiving beam, or

When multiple antenna panels are used for receiving the reference signal, the value of K is determined according to the reception status information of the multiple antenna panels.
The method according to any one of claims 1 to 3, wherein

The number information of the first receiving beams is the number K or K pieces of the identification information, and the receiving status information of the first resource is determined according to the receiving state information of the K receiving beams in the first receiving beam; or,

The number of antenna panels used to receive the reference signal is K. The reception status information of the first resource is determined according to the reception status information of the K antenna panels, and K is a positive integer greater than or equal to 1.
The method according to any one of claims 1 to 3, wherein

The quantity information of the first receiving beam is quantity K or K pieces of the identification information, and the receiving state information of the first resource includes K receiving state information corresponding to the K receiving beams in the first receiving beam, And sending information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource includes:

Sending K receiving status information corresponding to the K receiving beams; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, and sending each of the first resources The corresponding quantity information of the first receiving beam and the receiving state information of the reference signal carried on each first resource include:

Sending K receiving status information of the K antenna panels.
The method according to claim 4 or 5, wherein the K receiving beams correspond to K receiving status information, characterized in that:

The difference between any two of the K receiving status information of the K receiving beams is less than or equal to a first threshold, and / or any two of the K receiving status information of the K antenna panels The difference between the received status information is less than or equal to the first threshold; or

A ratio of any two reception status information of the K reception status information of the K reception beams is less than or equal to a second threshold, and / or any two receptions of the K reception status information of the K antenna panels are received The ratio of status information is less than or equal to the second threshold; or

The difference between the largest receiving state information and the smallest receiving state information in the K receiving state information of the K receiving beams is less than or equal to a third threshold, and / or among the K receiving state information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.
The method according to claim 6, wherein when the first receiving beam includes N receiving beams, and N is a positive integer greater than K,

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams And the difference between any of the K receiving status information of the K antenna panels and the NK antennas other than the K antenna panels of the N antenna panels The difference between the reception status information of any antenna panel in the panel is greater than the fourth threshold; or

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams The ratio of the receiving status information of any of the K receiving status information of the K antenna panels and / or the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of the reception status information of any one of the antenna panels is greater than the fifth threshold; or

The maximum reception status information among the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams The difference is greater than the sixth threshold, and / or the maximum reception status information of the K reception status information of the K antenna panels is different from the NK antenna panels other than the K antenna panels of the N antenna panels. The difference between the reception status information of any antenna panel is greater than the sixth threshold.
The method according to any one of claims 1 to 7, further comprising:

Receiving first reporting configuration information, where the first reporting configuration information is used to indicate the number of bits for reporting the number of the first receiving beam information, or for indicating the maximum number of the first receiving beam number to be reported, or It is used to indicate the number of bits for reporting the reception status information.
The method according to any one of claims 1 to 8, wherein when the number of the first resources is M and M is a positive integer greater than or equal to 2, the method further comprises:

Sending identification information of the at least one first resource among the M first resources.
The method according to claim 9, further comprising:

Determining first indication information, where the first indication information is used to indicate whether a receiving beam that receives reference signals carried on M first resources can be used for uplink transmission at the same time;

Sending the first instruction information.
The method according to any one of claims 1 to 10, wherein the reception status information is any one of a reference signal received power RSRP or a signal-to-interference ratio SINR or a signal-to-noise ratio SNR or a reference signal received quality RSRQ One.
The method according to any one of claims 1 to 11, wherein the first receiving beam is used for uplink transmission.
The method according to claim 12, wherein the antenna panel is in an activated state.
A transmission method, comprising:

Generating a first message under a first preset condition, where the first message is used to trigger a terminal device to send a first uplink reference signal;

Sending the first message, the first preset condition includes:

An uplink beam used by the terminal device to send a second uplink reference signal is configured as a resource identifier of a downlink reference signal, and the second uplink reference signal is used for channel measurement; and / or

The number of receiving beams for receiving the downlink reference signal by the terminal device or the number of antenna panels used for receiving the downlink reference signal is greater than 1; and / or

The difference between any two pieces of reception status information of the plurality of reception status information corresponding to the plurality of reception beams of the downlink reference signal received by the terminal device is less than or equal to a first threshold, or the terminal device receives the The difference between any two reception status information among multiple reception status information corresponding to multiple antenna panels used by the downlink reference signal is less than or equal to the first threshold.
The method according to claim 14, further comprising:

Generating a second message according to the number of the received beams or the number of antenna panels used to receive the downlink reference signal, where the second message is used to indicate the first uplink reference signal resource carrying the first uplink reference signal Quantity information and / or transmit beam information;

Sending the second message.
The method according to claim 14 or 15, wherein the first message is a scheduling request message sent by the terminal device.
The method according to any one of claims 14 to 16, wherein the first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.
A transmission method, comprising:

Sending a reference signal through at least one first resource, where the reference signal is carried on multiple resources, and each first resource corresponds to a first receiving beam of a terminal device, and the first receiving beam includes at least one receiving beam;

Receiving information about the number of first receiving beams and receiving status information of a reference signal carried on each first resource;

Determining the first receiving beam and the first resource.
The method according to claim 18, wherein the information about the number of first receiving beams includes the number of receiving beams included in the first receiving beam or an identifier of a receiving beam included in the first receiving beam Information, or

The quantity information of the first receiving beam includes quantity or identification information of an antenna panel used for receiving the reference signal.
The method according to claim 18 or 19, wherein the quantity information of the first receiving beam is a quantity K or K pieces of the identification information, and the receiving status information of the first resource is based on the first The receiving status information of the K receiving beams in the receiving beam is determined; or,

The number of antenna panels used to receive the reference signal is K. The reception status information of the first resource is determined according to the reception status information of the K antenna panels, and K is a positive integer greater than or equal to 1.
The method according to claim 18 or 19, wherein:

The quantity information of the first receiving beam is quantity K or K pieces of the identification information, the receiving state information of the first resource includes K receiving state information of the K receiving beams in the first receiving beam, and Receiving information about the number of first receiving beams and receiving state information of a reference signal carried on each first resource includes:

Receiving K reception status information corresponding to the K reception beams; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, and the number of received first reception beams. And the reception status information of the reference signal carried on each first resource includes:

Receiving the number information K of the antenna panels and K reception state information of the K antenna panels.
The method according to claim 20 or 21, wherein the K receiving beams correspond to K receiving status information,

The difference between any two of the K receiving status information of the K receiving beams is less than or equal to a first threshold, and / or any two of the K receiving status information of the K antenna panels The difference between the received status information is less than or equal to the first threshold; or

A ratio of any two reception status information of the K reception status information of the K reception beams is less than or equal to a second threshold, and / or any two receptions of the K reception status information of the K antenna panels are received. The ratio of status information is less than or equal to the second threshold; or

The difference between the largest receiving state information and the smallest receiving state information in the K receiving state information of the K receiving beams is less than or equal to a third threshold, and / or among the K receiving state information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.
The method according to claim 22, wherein:

When the first receiving beam includes N receiving beams, and N is a positive integer greater than K,

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams And the difference between any of the K receiving status information of the K antenna panels and the NK antennas other than the K antenna panels of the N antenna panels The difference between the reception status information of any antenna panel in the panel is greater than the fourth threshold; or

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams The ratio of the receiving status information of any of the K receiving status information of the K antenna panels and / or the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of the reception status information of any one of the antenna panels is greater than the fifth threshold; or

The maximum reception status information among the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams The difference is greater than the sixth threshold, and / or the maximum reception status information of the K reception status information of the K antenna panels is different from the NK antenna panels other than the K antenna panels of the N antenna panels. The difference between the reception status information of any antenna panel is greater than the sixth threshold.
The method according to any one of claims 18 to 23, wherein the method further comprises:

Send first reporting configuration information, where the first reporting configuration information is used to indicate the number of bits for reporting the number of the first received beam information, or to indicate the maximum value of the number of the first received beam, or It is used to indicate the number of bits for reporting the reception status information.
The method according to any one of claims 18 to 24, wherein when the number of the first resources is M, and M is a positive integer greater than or equal to 2, the method further comprises:

Receiving identification information of the at least one first resource among the M first resources.
The method according to claim 25, further comprising:

Receiving first indication information, which is used to indicate whether a receiving beam that receives reference signals carried on M first resources can be used for uplink transmission at the same time.
The method according to any one of claims 18 to 26, wherein the reception status information is any one of a reference signal received power RSRP or a signal noise interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ One.
The method according to any one of claims 18 to 27, wherein the first receiving beam is used for uplink transmission.
The method according to claim 28, wherein the antenna panel is in an activated state.
A transmission method, comprising:

Receiving a first message, where the first message is used to trigger a terminal device to send a first uplink reference signal;

Generating downlink control information DCI, where the DCI is used to instruct the terminal device to send a first uplink resource of the uplink reference signal;

Sending the DCI.
The method according to claim 30, further comprising:

Receiving a second message, where the second message is used to indicate the first uplink resource information and uplink beam information, and the first uplink resource information includes the number of first resources and the number of receive beams for receiving the first resource Or the corresponding number of antenna panels, the first resource is a resource in which a communication quality meets a preset condition among multiple resources used to carry a downlink reference signal.
The method according to claim 30 or 31, wherein the first message is a scheduling request message sent by the terminal device.
The method according to any one of claims 30 to 32, wherein the final first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.
A transmission device, comprising:

A processing unit, configured to determine reception state information of a reference signal carried on each first resource in at least one first resource, where each first resource corresponds to a first receiving beam, and the first receiving beam includes at least one receiving Beam

The communication unit sends information about the number of first receiving beams corresponding to each first resource and receiving state information of a reference signal carried on each first resource.
The apparatus according to claim 34, wherein the information about the number of first receiving beams includes the number of receiving beams included in the first receiving beam or an identifier of a receiving beam included in the first receiving beam Information, or

The quantity information of the first receiving beam includes quantity or identification information of an antenna panel used for receiving the reference signal.
The device according to claim 34 or 35, wherein the quantity information of the first receiving beam is a quantity K or K pieces of the identification information, K is an integer greater than or equal to 1, and the processing unit further uses to:

Determining that K is 1 when the first receiving beam includes one receiving beam or using an antenna panel for receiving the reference signal;

When the first receiving beam includes a plurality of receiving beams, determining a value of K according to reception state information of the plurality of receiving beams included in the first receiving beam, or

When multiple antenna panels are used for receiving the reference signal, the value of K is determined according to the reception status information of the multiple antenna panels.
The apparatus according to any one of claims 34 to 36, wherein the quantity information of the first receiving beam is a quantity K or K of the identification information, and the receiving status information of the first resource is based on The receiving status information of the K receiving beams in the first receiving beam is determined; or

The number of antenna panels used to receive the reference signal is K. The reception status information of the first resource is determined according to the reception status information of the K antenna panels, and K is a positive integer greater than or equal to 1.
The device according to any one of claims 34 to 36, wherein

The quantity information of the first receiving beam is quantity K or K pieces of the identification information, the receiving state information of the first resource includes K receiving state information of the K receiving beams in the first receiving beam, and The communication unit is further configured to:

Sending the K reception status information; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes reception status information of the K antenna panels of the plurality of antenna panels, and the communication unit is further configured to:

Sending the number information K of the antenna panels and K reception status information of the K antenna panels.
The apparatus according to claim 37 or 38, wherein the K receiving beams correspond to K receiving status information, characterized in that:

The difference between any two of the K receiving status information of the K receiving beams is less than or equal to a first threshold, and / or any two of the K receiving status information of the K antenna panels The difference between the received status information is less than or equal to the first threshold; or

A ratio of any two reception status information of the K reception status information of the K reception beams is less than or equal to a second threshold, and / or any two receptions of the K reception status information of the K antenna panels are received. The ratio of status information is less than or equal to the second threshold; or

The difference between the largest receiving state information and the smallest receiving state information in the K receiving state information of the K receiving beams is less than or equal to a third threshold, and / or among the K receiving state information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.
The apparatus according to claim 39, wherein when the first receiving beam includes N receiving beams, and N is a positive integer greater than K,

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams And the difference between any of the K receiving status information of the K antenna panels and the NK antennas other than the K antenna panels of the N antenna panels The difference between the reception status information of any antenna panel in the panel is greater than the fourth threshold; or

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams The ratio of the receiving status information of any of the K receiving status information of the K antenna panels and / or the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of the reception status information of any one of the antenna panels is greater than the fifth threshold; or

The maximum reception status information among the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams The difference is greater than the sixth threshold, and / or the largest reception status information among the K reception status information of the K antenna panels is among the NK antenna panels other than the K antenna panels of the N antenna panels The difference between the reception status information of any antenna panel is greater than the sixth threshold.
The device according to any one of claims 34 to 40, wherein the communication unit is further configured to:

Receiving first reporting configuration information, where the first reporting configuration information is used to indicate the number of bits for reporting the number of the first receiving beam information, or for indicating the maximum number of the first receiving beam number to be reported, or It is used to indicate the number of bits for reporting the reception status information.
The device according to any one of claims 34 to 41, wherein when the number of the first resources is M, and M is a positive integer greater than or equal to 2, the communication unit is further configured to:

Sending identification information of the at least one first resource among the M first resources.
The apparatus according to claim 42, wherein the processing unit is further configured to:

Determining first indication information, where the first indication information is used to indicate whether a receiving beam that receives reference signals carried on M first resources can be used for uplink transmission at the same time;

The communication unit is further configured to:

Sending the first instruction information.
The device according to any one of claims 34 to 43, wherein the reception status information is any one of a reference signal received power RSRP or a signal noise interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ One.
The apparatus according to any one of claims 34 to 44, wherein the first receiving beam is used for uplink transmission.
The device according to claim 45, wherein the antenna panel is in an activated state.
A transmission device, comprising:

A processing unit, configured to generate a first message under a first preset condition, where the first message is used to trigger a terminal device to send a first uplink reference signal;

A communication unit, configured to send the first message, and the first preset condition includes:

An uplink beam used by the terminal device to send a second uplink reference signal is configured as a resource identifier of a downlink reference signal, and the second uplink reference signal is used for channel measurement; and / or

The number of receiving beams for receiving the downlink reference signal by the terminal device or the number of antenna panels used for receiving the downlink reference signal is greater than 1; and / or

The difference between any two pieces of reception status information of the plurality of reception status information corresponding to the plurality of reception beams of the downlink reference signal received by the terminal device is less than or equal to a first threshold, or the terminal device receives the The difference between any two reception status information among multiple reception status information corresponding to multiple antenna panels used by the downlink reference signal is less than or equal to the first threshold.
The apparatus according to claim 47, wherein the processing unit is further configured to:

Generating a second message according to the number of the received beams or the number of antenna panels used to receive the downlink reference signal, where the second message is used to indicate the first uplink reference signal resource carrying the first uplink reference signal Quantity information and / or transmit beam information;

The communication unit is further configured to:

Sending the second message.
The apparatus according to claim 47 or 48, wherein the first message is a scheduling request message sent by the terminal device.
The apparatus according to any one of claims 47 to 49, wherein the first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.
A transmission device, comprising:

A communication unit, configured to send a reference signal through at least one first resource, where the reference signal is carried on multiple resources, and each first resource corresponds to a first receive beam of a terminal device, and the first receive beam includes at least one Receive beam

The communication unit is further configured to receive information about the number of first receiving beams and receiving state information of a reference signal carried on each of the first resources;

A processing unit, configured to determine the first receiving beam and the first resource.
The apparatus according to claim 51, wherein the information about the number of first receiving beams includes the number of receiving beams included in the first receiving beam or an identifier of a receiving beam included in the first receiving beam Information, or

The quantity information of the first receiving beam includes quantity or identification information of an antenna panel used for receiving the reference signal.
The device according to claim 51 or 52, wherein the quantity information of the first receiving beam is a quantity K or K of the identification information, and the receiving status information of the first resource is based on the first The receiving status information of the K receiving beams in the receiving beam is determined; or,

The number of antenna panels used to receive the reference signal is K. The reception status information of the first resource is determined according to the reception status information of the K antenna panels, and K is a positive integer greater than or equal to 1.
The device according to claim 51 or 53, wherein:

The quantity information of the first receiving beam is quantity K or K pieces of the identification information, the receiving state information of the first resource includes K receiving state information of the K receiving beams in the first receiving beam, and Receiving information about the number of first receiving beams and receiving state information of a reference signal carried on each first resource includes:

Receiving the number information K of the first reception beams and the K reception state information; and / or

The number of antenna panels used to receive the reference signal is K, and the reception status information of the first resource includes the reception status information of the K antenna panels of the plurality of antenna panels, and the number of received first reception beams. And the reception status information of the reference signal carried on each first resource includes:

Receiving K receiving status information of K antenna panels corresponding to the K receiving beams.
The apparatus according to claim 53 or 54, wherein the K receiving beams correspond to K receiving status information,

The difference between any two of the K receiving status information of the K receiving beams is less than or equal to a first threshold, and / or any two of the K receiving status information of the K antenna panels The difference between the received status information is less than or equal to the first threshold; or

A ratio of any two reception status information of the K reception status information of the K reception beams is less than or equal to a second threshold, and / or any two receptions of the K reception status information of the K antenna panels are received. The ratio of status information is less than or equal to the second threshold; or

The difference between the largest receiving state information and the smallest receiving state information in the K receiving state information of the K receiving beams is less than or equal to a third threshold, and / or among the K receiving state information of the K antenna panels The difference between the maximum reception status information and the minimum reception status information is less than or equal to the third threshold.
The device according to claim 55, wherein:

When the first receiving beam includes N receiving beams, and N is a positive integer greater than K,

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams And the difference between any of the K receiving status information of the K antenna panels and the NK antennas other than the K antenna panels of the N antenna panels The difference between the reception status information of any antenna panel in the panel is greater than the fourth threshold; or

Any one of the K receiving status information of the K receiving beams and the receiving status information of any one receiving beam of the NK receiving beams other than the K receiving beams in the N receiving beams The ratio of the receiving status information of any of the K receiving status information of the K antenna panels and / or the NK antenna panels other than the K antenna panels of the N antenna panels The ratio of the reception status information of any one of the antenna panels is greater than the fifth threshold; or

The maximum reception status information among the K reception status information of the K reception beams and the reception status information of any one of the NK reception beams other than the K reception beams in the N reception beams The difference is greater than the sixth threshold, and / or the maximum reception status information of the K reception status information of the K antenna panels is different from the NK antenna panels other than the K antenna panels of the N antenna panels. The difference between the reception status information of any antenna panel is greater than the sixth threshold.
The device according to any one of claims 51 to 56, wherein the communication unit is further configured to:

Send first reporting configuration information, where the first reporting configuration information is used to indicate the number of bits for reporting the number of the first received beam information, or to indicate the maximum value of the number of the first received beam, or It is used to indicate the number of bits for reporting the reception status information.
The device according to any one of claims 51 to 57, wherein when the number of the first resources is M, and M is a positive integer greater than or equal to 2, the communication unit is further configured to:

Receiving identification information of the at least one first resource among the M first resources.
The apparatus according to claim 58, wherein the communication unit is further configured to:

Receiving first indication information, which is used to indicate whether a receiving beam that receives reference signals carried on M first resources can be used for uplink transmission at the same time.
The device according to any one of claims 51 to 59, wherein the reception status information is any one of a reference signal received power RSRP or a signal noise interference ratio SINR or a signal to noise ratio SNR or a reference signal received quality RSRQ One.
The apparatus according to any one of claims 51 to 60, wherein the first receiving beam is used for uplink transmission.
The device according to claim 61, wherein the antenna panel is in an activated state.
A transmission device, comprising:

A communication unit, configured to receive a first message, where the first message is used to trigger a terminal device to send a first uplink reference signal;

A processing unit, configured to generate downlink control information DCI, where the DCI is used to instruct the terminal device to send a first uplink resource of the uplink reference signal;

The communication unit is further configured to send the DCI.
The apparatus according to claim 63, wherein the communication unit is further configured to:

Receiving a second message, where the second message is used to indicate the first uplink resource information and uplink beam information, and the first uplink resource information includes the number of first resources and the number of receive beams for receiving the first resource Or the corresponding number of antenna panels, the first resource is a resource in which a communication quality meets a preset condition among multiple resources used to carry a downlink reference signal.
The apparatus according to claim 63 or 64, wherein the first message is a scheduling request message sent by the terminal device.
The apparatus according to any one of claims 63 to 65, wherein the final first message is carried on a first uplink resource, and the first uplink resource is a periodic resource.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 33 is implemented.
A chip system is characterized in that the chip system includes:

Memory for storing instructions;

A processor, configured to call and execute the instructions from the memory, so that the communication device on which the chip system is installed executes the method according to any one of claims 1 to 33.
A program comprising instructions which, when executed, cause the method according to any one of claims 1 to 33 to be executed.