CN108633062B

CN108633062B - Method and device for multi-antenna transmission in base station and user equipment

Info

Publication number: CN108633062B
Application number: CN201710185639.5A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2017-03-26
Filing date: 2017-03-26
Publication date: 2021-10-29
Anticipated expiration: 2037-03-26
Also published as: CN108633062A

Abstract

The invention discloses a method and a device for multi-antenna transmission in a base station and user equipment. The user equipment sequentially performs receiving the first wireless signal and transmitting the first information and the second information. The first information is used to determine a set of L antenna port groups. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group. The invention can flexibly support the reporting of the beam information aiming at improving the transmission robustness and flexible scheduling.

Description

Method and device for multi-antenna transmission in base station and user equipment

Technical Field

The present application relates to a transmission scheme of wireless signals in a wireless communication system, and more particularly, to a method and apparatus for multi-antenna transmission.

Background

Large-scale (Massive) MIMO (Multi-Input Multi-Output) is a research hotspot for next-generation mobile communication. In massive MIMO, a plurality of antennas form a narrow beam pointing in a specific direction by beamforming to improve communication quality, and one transmit beam and one receive beam form a beam pair. In the FDD system, the base station obtains downlink beam pair information through a report of a downlink beam sweep (beam sweeping) by the UE. However, when signaling or data is transmitted using a pair of narrower beams, there is a problem that reliability is low in actual transmission due to blocking by a mobile object or movement of a UE (User Equipment). In order to improve the transmission reliability of the Physical layer signaling, in the discussion of 3GPP RAN-1NR, companies propose to use multiple beam pairs to transmit PDCCH (Physical Downlink Control Channel) in different time resource pools, which can improve the reliability of transmitting the Physical layer signaling using the beam pairs to a certain extent. For this reason, the UE needs to report multiple beam pairs when reporting the beam pair information.

Disclosure of Invention

The inventor finds, through research, that a plurality of beam pairs reported by the UE can be used not only for countering blocking, but also for the base station to flexibly schedule transmission beams. The multiple beams used for reporting against blocking should belong to different paths, while the multiple beams used for flexible scheduling of transmit beams for reporting are not so limited. Whether the UE can simultaneously receive multiple paths is related to the radio frequency configuration of the UE, and in the case that the UE is equipped with multiple antenna panels (panels) and each panel has an independent radio frequency link, the UE can simultaneously receive two transmission beams corresponding to different panels respectively using two different reception beams, so that the base station can simultaneously use the two transmission beams to provide transmission robustness. However, it cannot be excluded that two paths in several paths reported by a UE with multiple antenna panels are associated with the same panel.

The present application provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the base station of the present application may be applied in the user equipment and vice versa.

The application discloses a method used in user equipment for multi-antenna transmission, which comprises the following steps:

-step a. receiving a first wireless signal;

-step b. sending the first information and the second information;

wherein the K antenna port groups are used to transmit the first wireless signal. The first information is used to determine a set of L antenna port groups. Any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups. Both said K and said L are positive integers greater than 1. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

As an embodiment, the foregoing method has an advantage that the ue may report multiple beam pairs related to multiple paths, and the base station may differentiate the paths by the antenna port group set, and determine whether the beam pairs of two paths of the multiple paths may be used simultaneously through the second information to improve transmission efficiency.

As an embodiment, the first wireless signal is K reference signal groups, and the K antenna ports are respectively used for transmitting the K reference signal groups.

As one embodiment, the first wireless signal is a set of K CSI-rs (channel State Information Reference signal).

As an embodiment, the first wireless signal is a set of K mrss (mobile Reference signal).

As an embodiment, the first wireless signal is an ofdm (orthogonal Frequency Division multiplexing) symbol where K reference signal groups are located.

As an embodiment, the first wireless signal is a DFT-s-OFDM (Discrete Fourier Transform Spread OFDM) symbol where K reference signal groups are located.

As an embodiment, the K antenna port groups and the K reference signal groups correspond one to one.

As an embodiment, the antenna port set comprises only one antenna port.

As an embodiment, the reference signal group comprises only one reference signal.

As an embodiment, the antenna ports in the antenna port group are formed by overlapping a plurality of physical antennas through antenna Virtualization (Virtualization). And the mapping coefficients of the antenna ports to the plurality of physical antennas form a beam forming vector which is used for virtualizing the antennas to form beams.

As one embodiment, the beamforming vectors include analog beamforming vectors and digital beamforming vectors.

For one embodiment, the beams include a transmit beam and a receive beam.

As an embodiment, the first antenna port and the second antenna port are any two different antenna ports. The physical channel experienced by the signal corresponding to the first antenna port and the physical channel experienced by the signal corresponding to the second antenna port cannot be assumed to be the same.

As an embodiment, the physical channel experienced by a first signal corresponding to one of the antenna ports may be used to infer the physical channel experienced by a second signal corresponding to the same one of the antenna ports, the first signal and the second signal being two signals transmitted on different radio resources.

As an embodiment, the first reference signal and the second reference signal are two reference signals on different time resources, and the first reference signal and the second reference signal correspond to different antenna ports.

As an embodiment, the L sets of antenna port groups are used to determine L paths respectively.

For one embodiment, the K antenna port groups experience L1 paths, the L paths being L of the L1 paths, the L1 being a positive integer greater than L.

As an embodiment, the antenna port groups that have traveled the same one of said paths are antenna port groups that are approximated by large-scale channel characteristics.

As an embodiment, the large-scale channel characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.

As an embodiment, the two associated antenna port groups refer to an antenna port in one of the two antenna port groups and a corresponding antenna port QCL (Quasi Co-located, class Co-located) in the other antenna port group.

As an embodiment, the QCL means that the large-scale channel characteristics corresponding to the two antenna ports are the same.

For one embodiment, the QCL means that the large-scale channel characteristics corresponding to the two antenna ports are very similar.

As an embodiment, the QCL means that the transmit analog beamforming vectors used by the two antenna ports are the same.

As an embodiment, the QCL means that the receiving analog beamforming vectors used by the two antenna ports are the same.

As an embodiment, two associated antenna port groups means that the same transmit analog beamforming vector is used for the two antenna port groups.

As an embodiment, the two associated antenna port groups mean that the user equipment should receive the wireless signals transmitted by the two antenna port groups using the same reception analog beamforming vector.

As an embodiment, the two associated antenna port groups refer to the same trp (transmit and Receive point) used for transmitting wireless signals on the two antenna port groups.

As an embodiment, there are no two antenna port groups respectively associated with two antenna port groups corresponding to different receiving analog beamforming vectors in one antenna port group set, which are used by the base station to transmit wireless signals to the user equipment at the same time.

As an embodiment, the first antenna port group set and the second antenna port group set are any two of the L antenna port group sets.

As an embodiment, the fourth set of antenna port groups is one set of antenna port groups of the L sets of antenna port groups, and the fourth set of antenna port groups is independent of the second information.

As a sub-embodiment of the foregoing embodiment, the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by two antenna port groups respectively associated with any two antenna port groups in the fourth antenna port group set.

As an embodiment, the second information is used to determine whether two antenna port groups respectively associated with two antenna port groups respectively included in any two antenna port group sets of the L1 antenna port group sets can be simultaneously used for transmitting wireless signals. The L1 sets of antenna port groups are L1 sets of the L antenna port groups. The L1 is less than or equal to the L.

As a sub-embodiment of the above embodiment, the second information includes L1-1 fields, and the L1-1 fields respectively correspond to L1-1 antenna port group sets except the first antenna port group set among the L1 antenna port group sets.

As an embodiment, L sub-signals are used to transmit the L sets of antenna port groups, respectively. The number of the L sub-signals is 1 to L. Subsignal 1 does not carry the second information and subsignals 2 to L carry the second information.

As an embodiment, the second information carried by the sub-signal n is used to determine whether an antenna port group associated with an antenna port group in an antenna port group set corresponding to the sub-signal n can be used simultaneously with an antenna port group associated with an antenna port group in an antenna port group set corresponding to the sub-signal with a sub-signal number less than n. And n is a positive integer greater than 1 and less than or equal to L.

As one embodiment, the second information is used to determine: if the association information of the first antenna port group is different from the association information of the second antenna port group, the first antenna port group and the second antenna port group cannot be used simultaneously.

As one embodiment, the second information is used to determine: if the receive beam corresponding to the first antenna port group is different from the receive beam corresponding to the second antenna port group, the first antenna port group and the second antenna port group cannot be used simultaneously.

As one embodiment, the second information is used to determine: even if the association information corresponding to the first antenna port group is different from the association information corresponding to the second antenna port group, the first antenna port group and the second antenna port group may be used simultaneously.

As one embodiment, the second information is used to determine: the first antenna port group and the second antenna port group may be used simultaneously even if the reception beam corresponding to the first antenna port group is different from the reception beam corresponding to the second antenna port group.

As an embodiment, the first antenna port group set and the second antenna port group set correspond to a path with the best average channel quality and a next path, respectively.

As an embodiment, the second information is used by a base station to decide whether to use the first antenna port group and the second antenna port group simultaneously for transmitting a wireless signal to the user equipment.

As an embodiment, the first antenna port group and the second antenna port group are further used for transmitting dmrs (demodulation Reference signal) corresponding to the wireless signal.

As an embodiment, DMRSs corresponding to the first antenna port group and the second antenna port group are used to measure a physical channel experienced by the wireless signal.

As an embodiment, DMRSs corresponding to the first antenna port group and the second antenna port group are used to demodulate the wireless signal.

As an embodiment, the first information and the second information belong to csi (channel state information) reporting information.

As an embodiment, a pucch (physical Uplink Control channel) is used to transmit the first information and the second information.

As an embodiment, pusch (physical Uplink Share channel) is used to transmit the first information and the second information.

As an embodiment, a radio resource on which a PUSCH is located is used to transmit the first information and the second information.

Specifically, according to an aspect of the present application, the method further includes the steps of:

-step c. receiving a first signaling;

-step d.

Wherein the second information is used to determine that the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to transmit the second wireless signals.

As an embodiment, the above method has a benefit that the base station performs scheduling for simultaneously using the first antenna port group and the second antenna port group for transmitting the second wireless signal according to UE receiving capability, thereby saving time resources while ensuring transmission robustness.

As an embodiment, the first signaling is higher layer signaling.

As an embodiment, the first signaling is rrc (radio Resource control) configuration signaling.

As an embodiment, the first signaling is RRC reconfiguration signaling.

As an embodiment, the first signaling is a signaling carried by a CE (Control Element) of a Media Access Control (MAC) layer.

As an embodiment, the first signaling is carried by dci (downlink Control information) on a PDCCH.

As one embodiment, the first signaling explicitly indicates that the first antenna port group and the second antenna port group are simultaneously used for transmitting the second wireless signal.

As one embodiment, the first signaling implicitly indicates that the first antenna port group and the second antenna port group are simultaneously used to transmit the second wireless signal.

As an embodiment, the simultaneous refers to transmission on the same OFDM symbol.

As an embodiment, the simultaneous refers to transmission on the same DFT-s-OFDM symbol.

As an embodiment, the transmit analog beamforming vectors employed by the antenna port groups respectively associated with the first antenna port group and the second antenna port group are simultaneously used for transmitting the second wireless signal.

As an embodiment, the receiving analog beamforming vectors adopted by the antenna port groups respectively associated with the first antenna port group and the second antenna port group are simultaneously used by the ue to receive the second wireless signal.

As one embodiment, the second wireless signal is physical layer control signaling.

As one embodiment, the second wireless signal is transmission data.

-step c. receiving a second signaling;

-step d.

Wherein the second information is used to determine that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to transmit the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As an embodiment, the above method has a benefit that, for two antenna port groups that cannot receive simultaneously, the time domain orthogonal approach is used to improve the robustness of transmission.

As an embodiment, the second signaling is higher layer signaling.

As an embodiment, the second signaling is rrc (radio Resource control) configuration signaling.

As an embodiment, the second signaling is RRC reconfiguration signaling.

As an embodiment, the second signaling is a signaling carried by a CE (Control Element) of a Media Access Control (MAC) layer.

As an embodiment, the second signaling is carried by dci (downlink Control information) on PDCCH.

As an embodiment, the second signaling explicitly indicates that the first antenna port group and the second antenna port group are used for transmitting the second wireless signal on a first time domain resource and a second time domain resource, respectively, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As an embodiment, the second signaling implicitly indicates that the first antenna port group and the second antenna port group are used for transmitting the second wireless signal on a first time domain resource and a second time domain resource, respectively, and the first time domain resource and the second time domain resource are orthogonal in a time domain. As an embodiment, the time domain resource refers to an OFDM symbol.

For one embodiment, the time domain resource refers to a DFT-s-OFDM symbol.

As an embodiment, the transmit analog beamforming vectors adopted by the antenna port groups respectively associated with the first antenna port group and the second antenna port group are used for transmitting the second wireless signal on different time domain resources.

As an embodiment, the receiving analog beamforming vectors adopted by the antenna port groups respectively associated with the first antenna port group and the second antenna port group are used by the user equipment to receive the second wireless signal on different time resources.

As one embodiment, the second wireless signal is transmission data.

Specifically, according to an aspect of the present application, the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the set of L antenna port groups. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As an embodiment, the above method has a benefit that the indexes of the two antenna port groups in the K antenna port groups can be used for implicitly determining whether their respectively associated antenna port groups can be used for simultaneously transmitting wireless signals, thereby reducing signaling overhead.

As an embodiment, the indexes of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine that the same receive analog beamforming vector is used to receive the reference signals corresponding to the fifth antenna port group and the sixth antenna port group, and therefore the base station determines that the user equipment can simultaneously receive the wireless signals simultaneously transmitted by using the third antenna port group and the fourth antenna port group.

As a sub-implementation of the foregoing embodiment, the second information is used to determine that antenna port groups associated with antenna port groups corresponding to different receive analog beamforming vectors in two antenna port group sets in which the fifth antenna port group and the sixth antenna port group are respectively located cannot be received simultaneously.

As another sub-embodiment of the above-mentioned embodiments, the second information is not used for determining that the user equipment is capable of simultaneously receiving the wireless signals simultaneously transmitted by the third antenna port group and the fourth antenna port group.

As an embodiment, the second information is not used to determine that the user equipment can simultaneously receive the wireless signals simultaneously transmitted by the third antenna port group and the fourth antenna port group, and the indexes of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine that different receiving analog beamforming vectors are used to receive the reference signals corresponding to the fifth antenna port group and the sixth antenna port group, so that the base station assumes that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the third antenna port group and the fourth antenna port group.

As an embodiment, the second information is used to determine that the user equipment can simultaneously receive the wireless signals simultaneously transmitted by the third antenna port group and the fourth antenna port group, and the base station assumes that the user equipment can simultaneously receive the wireless signals simultaneously transmitted by the third antenna port group and the fourth antenna port group even though the indexes of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine that different reception analog beamforming vectors are used to receive the reference signals corresponding to the fifth antenna port group and the sixth antenna port group.

As an embodiment, the transmission order of the K antenna port groups is used to determine whether the user equipment uses the same reception analog beam vector.

As one embodiment, the base station instructs the user equipment to receive K1 antenna port groups of the K antenna port groups using the same receive analog beamforming vector, the K1 being a positive integer greater than 1 and less than the K.

As an embodiment, the K antenna port groups are transmitted on a plurality of time resource groups, and the base station and the user equipment agree to use the same receiving analog beamforming vector on one time resource group of the plurality of time resource groups and use different receiving analog beamforming vectors on different time resource groups of the plurality of time resource groups.

Specifically, according to one aspect of the present application, a large-scale channel correlation between any one antenna port in the first antenna port group set and any one antenna port in the second antenna port group set is lower than a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As an embodiment, the above method has a benefit that the L sets of antenna port groups are used to represent L paths with low correlation, and transmission using beam pairs corresponding to different paths can be used to enhance the robustness of transmission.

As an embodiment, the correlation of the large-scale channel refers to the correlation of the large-scale channel characteristics.

As an example, the large scale correlation of the channels is the difference between the angles of arrival.

As an embodiment of the above-mentioned embodiments, a difference between angles of arrival between any one antenna port in the first set of antenna port groups and any one antenna port in the second set of antenna port groups is lower than a first threshold; or a difference between angles of arrival between any two antenna ports in any one of the L sets of antenna port groups is higher than a second threshold.

As an example, the large scale correlation of the channel is the difference between the delay spreads.

As an embodiment of the foregoing embodiment, a difference between delay spreads between any one antenna port in the first antenna port group set and any one antenna port in the second antenna port group set is lower than a first threshold; or a difference between delay spreads between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold.

As one embodiment, the unit of the first threshold and the second threshold is dB.

Specifically, according to one aspect of the present application, step a further includes the following steps:

step A0. receives the third signaling.

Wherein the third signaling is used to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As an embodiment, the above method has the advantage of achieving flexibility in system configuration.

As an embodiment, the third signaling is higher layer signaling.

As an embodiment, the third signaling is rrc (radio Resource control) configuration signaling.

As an embodiment, the third signaling is RRC reconfiguration signaling.

As an embodiment, the third signaling is a signaling carried by a CE (Control Element) of a Media Access Control (MAC) layer.

As an embodiment, the third signaling is carried by dci (downlink Control information) on PDCCH.

As an embodiment, the third signaling explicitly indicates at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As an embodiment, the third signaling implicitly indicates at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the sending of the second information, the first threshold, the second threshold }.

Specifically, according to an aspect of the present application, the second wireless signal is one of { reference signal, control signaling, transmission data }.

As an embodiment, the second information may be used to ensure the utilization efficiency of time resources and transmission power while improving reliability of { reference signal, control signaling, transmission data }, as an advantage of the above method.

As one embodiment, the second wireless signal is a CSI-RS.

As one embodiment, the second wireless signal is a PDCCH.

As one embodiment, the second wireless signal is a PDSCH.

The application discloses a method used in base station equipment for multi-antenna transmission, which comprises the following steps:

-step a. transmitting a first wireless signal;

-step b. receiving the first information and the second information;

wherein the K antenna port groups are used to transmit the first wireless signal. The first information is used to determine a set of L antenna port groups. Any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups. Both said K and said L are positive integers greater than 1. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

As an embodiment, the second information is used to determine that a sender of the first information can simultaneously receive the wireless signals sent by the first antenna port group and the second antenna port group, and the base station uses the first antenna port group and the second antenna port group simultaneously to send the wireless signals to the user equipment.

As an embodiment, the second information is used to determine that a sender of the first information cannot simultaneously receive the wireless signals simultaneously sent by the first antenna port group and the second antenna port group, and the base station uses the first antenna port group and the second antenna port group for sending wireless signals to the user equipment on different time resources.

-step c. sending a first signaling;

-step d.

Wherein the second information is used to determine that a sender of the first information can simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to send the second wireless signals.

As an embodiment, the second information is used to determine that the user equipment can simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the base station makes a schedule for simultaneously using the first antenna port group and the second antenna port group for transmitting the second wireless signals according to the second information and notifies the user equipment of the schedule.

-step c. sending a second signaling;

-step d.

Wherein the second information is used to determine that a sender of the first information cannot simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to send the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As an embodiment, the second information is used to determine that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the base station makes a schedule for using the first antenna port group and the second antenna port group for transmitting the second wireless signals on different time resources according to the second information and notifies the user equipment of the schedule.

Specifically, according to an aspect of the present application, the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the set of L antenna port groups. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

Specifically, according to one aspect of the present application, it is characterized in that the large-scale channel correlation between any one antenna port in the first antenna port group set and any one antenna port in the second antenna port group set is lower than a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

step A0. sends the third signaling.

The application discloses a user equipment used for multi-antenna transmission, which comprises the following modules:

-a first receiving module: is used for receiving a first wireless signal;

-a second sending module: is used for transmitting the first information and the second information;

As an embodiment, the above user equipment is characterized in that the first receiving module is further configured to receive a first signaling and a second wireless signal. Wherein the second information is used to determine that the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to transmit the second wireless signals.

As an embodiment, the above user equipment is characterized in that the first receiving module is further configured to receive a second signaling and a second wireless signal. Wherein the second information is used to determine that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to transmit the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As an embodiment, the user equipment is characterized in that the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the L antenna port group sets. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As an embodiment, the above user equipment is characterized in that the large-scale channel correlation between any one antenna port in the first antenna port group set and any one antenna port in the second antenna port group set is lower than a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As an embodiment, the above user equipment is characterized in that the first receiving module is further configured to receive a third signaling. Wherein the third signaling is used to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As an embodiment, the above user equipment is characterized in that the second radio signal is one of { reference signal, control signaling, transmission data }.

The application discloses be used for transmission of many antennas base station equipment, wherein, including following module:

-a first sending module: is used for transmitting a first wireless signal;

-a second receiving module: is used for receiving first information and second information;

As an embodiment, the base station device is characterized in that the first sending module is further configured to send the first signaling and send the second wireless signal. Wherein the second information is used to determine that a sender of the first information can simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to send the second wireless signals.

As an embodiment, the base station device is characterized in that the first sending module is further configured to send a second signaling and send a second wireless signal. Wherein the second information is used to determine that a sender of the first information cannot simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to send the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As an embodiment, the base station device is characterized in that the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the L antenna port group sets. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As an embodiment, the base station device is characterized in that a large-scale channel correlation between any one antenna port in the first antenna port group set and any one antenna port in the second antenna port group set is lower than a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As an embodiment, the base station device is characterized in that the first sending module is further configured to send a third signaling. Wherein the third signaling is used to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As an embodiment, the base station apparatus described above is characterized in that the second radio signal is one of { reference signal, control signaling, transmission data }.

As an example, compared with the conventional scheme, the method has the following advantages:

flexibly supporting beam information reporting for improved transmission robustness and flexible scheduling;

flexibly supporting the reporting of beam information embodying the hardware capability of the UE;

saving beam information reporting overhead.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the application;

fig. 2 shows a schematic diagram of an RS (Reference Signal) transmitted by an antenna port in one wireless resource block according to an embodiment of the present application;

fig. 3 shows a schematic diagram of a set of K antenna port groups and L antenna port groups according to an embodiment of the application;

fig. 4 shows a schematic diagram of a second information transmission according to an embodiment of the application.

Fig. 5 shows a schematic diagram of a first antenna port group and a second antenna port group being used for transmitting a second wireless signal according to an embodiment of the application.

Fig. 6 shows a schematic diagram of a transmission order of K antenna port groups according to an embodiment of the present application.

Fig. 7 shows a block diagram of a processing device for use in a UE according to an embodiment of the present application;

fig. 8 is a block diagram of a processing device for use in a base station according to an embodiment of the present application.

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for UE U2. In FIG. 1, the steps in block F1, block F2, block F3, and block F4 are optional.

For N1, third signaling is sent in step S11; transmitting a first wireless signal in step S12; receiving the first information and the second information in step S13; sending a first order in step S14; transmitting a second signaling in step S15; the second wireless signal is transmitted in step S16.

For U2, third signaling is received in step S21; receiving a first wireless signal in step S22; receiving the first information and the second information in step S23; receiving a first signaling in step S24; receiving a second signaling in step S25; the second wireless signal is received in step S26.

In embodiment 1, K antenna port groups are used by N1 for transmitting the first wireless signal. The first information is used by N1 to determine a set of L antenna port groups. Any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups. Both said K and said L are positive integers greater than 1. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used by N1 to determine whether U2 is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

As sub-embodiment 1 of embodiment 1, the steps in blocks F2 and F4 are present and the step in block F3 is absent, the second information is used by N1 to determine that U2 is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the first signaling is used by U2 to determine that the first antenna port group and the second antenna port group are simultaneously used by N1 to transmit the second wireless signals.

As sub-embodiment 2 of embodiment 1, the step in block F2 is absent, and the steps in blocks F3 and F4 are present, the second information being used by N1 to determine that U2 cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, the second signaling being used by U2 to determine that the first antenna port group and the second antenna port group are used to transmit the second wireless signals on first time domain resources and second time domain resources, respectively, the first time domain resources and the second time domain resources being orthogonal in time domain.

As sub-embodiment 3 of embodiment 1, the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the L antenna port group sets. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used by N1 to determine whether U2 is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As sub-embodiment 4 of embodiment 1, a large scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As sub-embodiment 5 of embodiment 1, the step in block F1 exists, the third signaling is used by U2 to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As sub-embodiment 6 of embodiment 1, the second wireless signal is one of { reference signal, control signaling, transmission data }.

Without conflict, sub-embodiment 1 and sub-embodiments 3-6 described above can be combined arbitrarily. Without conflict, sub-embodiment 2 and sub-embodiments 3-6 described above can be combined arbitrarily.

Example 2

Embodiment 2 illustrates an RS (Reference Signal) transmitted by one antenna port in one radio resource block, as shown in fig. 2. In fig. 2, a square frame identified by a thick line frame is a time frequency Resource block, a small square grid filled by oblique lines is an RE (Resource Elements, Resource particles) occupied by an RS sent by a first antenna port in the time frequency Resource block, and a small square grid filled by dots is an RE occupied by an RS sent by a second antenna port in the time frequency Resource block. The first antenna port and the second antenna port are two different antenna ports in this application.

As sub-embodiment 1 of embodiment 2, the time-frequency resource block includes 12 subcarriers in the frequency domain.

As a sub-embodiment 2 of the embodiment 2, the time-Frequency resource block includes 14 OFDM (orthogonal Frequency Division Multiplexing) symbols in a time domain.

As a sub-embodiment 3 of the embodiment 2, a pattern of the RS sent by the first antenna port in the time-frequency resource block is the same as a pattern of the RS sent by the second antenna port in the time-frequency resource block.

As a sub-embodiment 4 of embodiment 2, the time-frequency Resource Block is a PRB (Physical Resource Block), the pattern of the RS sent by the first antenna port in the time-frequency Resource Block is a CSI-RS pattern in the PRB, and the pattern of the RS sent by the second antenna port in the time-frequency Resource Block is a CSI-RS pattern in the PRB.

Example 3

Embodiment 3 illustrates K antenna port groups and L antenna port group sets as shown in fig. 3. In fig. 3, the grey filled checkers are reflectors.

In embodiment 3, K antenna port groups, that is, 48 antenna port groups, and L antenna port group sets, that is, 3 antenna port group sets. Two TRPs are used for transmitting reference signals, each TRP transmitting reference signals using 4 transmit beams, and the UE receives the reference signals transmitted by the two TRPs using two antenna panels with independent radio frequency links, each antenna panel forming 3 receive beams. The 8 transmit beams and 6 receive beams together form 48 beam pairs. Thus 48 antenna port groups are used to transmit 48 reference signal groups to the UE, respectively. The UE preferably selects 10 beams according to the channel quality measurement result to feed back 3 antenna port group sets (i.e., a first antenna port group set, a second antenna port group set, and a third antenna port group set) formed according to the large-scale channel correlation. The set of 3 antenna port groups is used to reflect three more independent paths, namely a first path, a second path, and a third path. As shown in fig. 3, in the 3 antenna port group sets, due to the fact that the antenna ports correspond to different antenna panels, any one receiving beam corresponding to the antenna port group in the first antenna port group set may be used simultaneously with any one receiving beam corresponding to the antenna port group in the second antenna port group set; because of different receiving beams corresponding to the same antenna panel, the receiving beam 2 corresponding to the antenna port group in the third antenna port group set cannot be used simultaneously with the receiving beam 1 in the first antenna port group set; due to the different antenna panels, the receiving beam 2 corresponding to the antenna port group in the third antenna port group set may be used simultaneously with any receiving beam corresponding to the antenna port group in the second antenna port group set.

As sub-embodiment 1 of embodiment 3, the second information is used to determine that any one of the reception beams corresponding to the antenna port group in the first antenna port group set can be used simultaneously with any one of the reception beams corresponding to the antenna port group in the second antenna port group set.

As sub-embodiment 2 of embodiment 3, the second information is used to determine that any one of the receiving beams corresponding to the antenna port groups in the second antenna port group set can be used simultaneously with any one of the receiving beams corresponding to the antenna port groups in the third antenna port group set.

As sub-embodiment 3 of embodiment 3, the second information is used to determine that two receive beams cannot be used simultaneously if the receive beam corresponding to one antenna port group in the second set of antenna port groups is different from the receive beam corresponding to one antenna port group in the third set of antenna port groups.

Example 4

Embodiment 4 illustrates the transmission of the second information, as shown in fig. 4. In fig. 4, the diagonal-filled long squares are the information fields in the second information.

In embodiment 4, sub-signals 1-3 are used to transmit a first set of antenna port groups, a second set of antenna port groups and a third set of antenna port groups, respectively. The sub-signal 1 does not carry the information field of the second information, the sub-signal 2 carries the first field of the second information, and the sub-signal 3 carries the second field of the second information. The first field of the second information is used to determine: whether the antenna port group associated with any one antenna port group in the second antenna port group set can be used simultaneously with the antenna port group associated with any one antenna port group in the first antenna port group set. A second field of the second information is used to determine: 1) whether an antenna port group associated with any one antenna port group in the third antenna port group set can be used simultaneously with an antenna port group associated with any one antenna port group in the first antenna port group set; 2) whether an antenna port group associated with any one antenna port group in the third antenna port group set can be used simultaneously with an antenna port group associated with any one antenna port group in the second antenna port group set.

As an embodiment, the first field is 1 bit.

As an embodiment, the second field is 2 bits, and the bit sequence numbers correspond to sequence numbers of the first antenna port group set and the second antenna port group set.

Example 5

Embodiment 5 illustrates that the first antenna port group and the second antenna port group are used for transmitting the second wireless signal, as shown in fig. 5. In fig. 5, the rectangular grid is the time resource occupied by the second wireless signal, the white filled ellipse is the receiving analog beam corresponding to the first antenna port group, and the oblique filled ellipse is the receiving analog beam corresponding to the second antenna port group.

In embodiment 5, if second information is used to determine that a first antenna port group and a second antenna port group can be simultaneously received, the first antenna port group and the second antenna port group are used to transmit a second wireless signal on the same time resource, and a receive beam corresponding to the first antenna port group and a receive beam corresponding to the second antenna port group are simultaneously used to receive the second wireless signal.

In embodiment 5, if second information is used to determine that a first antenna port group and a second antenna port group cannot be simultaneously received, the first antenna port group and the second antenna port group are used to transmit a second wireless signal on different time resources, and a receive beam corresponding to the first antenna port group and a receive beam corresponding to the second antenna port group are not simultaneously used to receive the second wireless signal.

As sub-embodiment 1 of embodiment 5, the time resource is an OFDM symbol.

As sub-embodiment 2 of embodiment 5, the time resource is a DFT-S-OFDM symbol.

Example 6

Embodiment 6 illustrates a transmission order of K antenna port groups, as shown in fig. 6. In fig. 6, a white filled box is an antenna port group, and the number in the box is the transmission number of the antenna port group.

In embodiment 6, M transmit beams (TxB) and N receive beams (RxB) are used to measure MN antenna port groups. The measurement is performed in a beam scanning manner, as shown in fig. 6, the base station and the user equipment agree to continuously measure M different transmit beams using the same receive beam. Therefore, the sequence number of the antenna port group fed back by the user equipment to the base station may be used by the base station to determine whether the user equipment receives different transmit beams using the same receive beam.

Example 7

Embodiment 7 illustrates a processing apparatus for use in a UE, as shown in fig. 7. The UE apparatus 200 is mainly composed of a first receiving module 201 and a second transmitting module 202.

In embodiment 7, the first receiving module 201 is used to receive a first wireless signal; the second sending module 202 is used for sending the first information and the second information.

In embodiment 7, K antenna port groups are used for transmitting the first wireless signal. The first information is used to determine a set of L antenna port groups. Any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups. Both said K and said L are positive integers greater than 1. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

As sub embodiment 1 of embodiment 7, the first receiving module 201 is further configured to receive a first signaling and a second wireless signal. Wherein the second information is used to determine that the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to transmit the second wireless signals.

As sub-embodiment 2 of embodiment 7, the first receiving module 201 is further configured to receive a second signaling and a second wireless signal. Wherein the second information is used to determine that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to transmit the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As sub-embodiment 3 of embodiment 7, the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group of the set of L antenna port groups. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As sub-embodiment 4 of embodiment 7, a large scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As sub-embodiment 5 of embodiment 7, the first receiving module 201 is further configured to receive a third signaling. Wherein the third signaling is used to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As sub-embodiment 6 of embodiment 7, the second wireless signal is one of { reference signal, control signaling, transmission data }.

Example 8

Embodiment 8 illustrates a processing apparatus used in a base station device, as shown in fig. 8. The base station apparatus 300 is mainly composed of a first transmitting module 301 and a second receiving module 302.

In embodiment 8, the first transmission module 301 is used to transmit a first wireless signal; the second receiving module 302 is used for receiving the first information and the second information;

in embodiment 8, K antenna port groups are used for transmitting the first wireless signal. The first information is used to determine a set of L antenna port groups. Any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups. Both said K and said L are positive integers greater than 1. The first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups. The first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups. The second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups. The second information is used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

As sub-embodiment 1 of embodiment 8, the first sending module 301 is further configured to send the first signaling and send the second wireless signal. Wherein the second information is used to determine that a sender of the first information can simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to send the second wireless signals.

As sub-embodiment 2 of embodiment 8, the first sending module 301 is further configured to send a second signaling and send a second wireless signal. Wherein the second information is used to determine that a sender of the first information cannot simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to send the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

As sub-embodiment 3 of embodiment 8, the third antenna port group and the fourth antenna port group are respectively associated with a fifth antenna port group and a sixth antenna port group in the set of L antenna port groups. The indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

As sub-embodiment 4 of embodiment 8, a large scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold. The first threshold and the second threshold are positive numbers.

As sub-embodiment 5 of embodiment 8, the first sending module 301 is further configured to send third signaling. Wherein the third signaling is used to determine at least one of { the K antenna port groups, the L, the number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, the second threshold }.

As sub-embodiment 6 of embodiment 8, the second wireless signal is one of { reference signal, control signaling, transmission data }.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the application includes but is not limited to a mobile phone, a tablet computer, a notebook, a network card, an NB-IOT terminal, an eMTC terminal and other wireless communication devices. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a user equipment used for multi-antenna transmission, comprising the steps of:

-step a. receiving a first wireless signal;

-step b. sending the first information and the second information;

wherein K antenna port groups are used to transmit the first wireless signal; the first information is used to determine a set of L antenna port groups; any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups; said K and said L are both positive integers greater than 1; the first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups; a first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups; the second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups; the second information is used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

2. The method of claim 1, further comprising the steps of:

-step c. receiving a first signaling;

-step d. receiving a second wireless signal;

3. The method of claim 1, further comprising the steps of:

-step c. receiving a second signaling;

-step d. receiving a second wireless signal;

4. The method according to any of claims 1 to 3, wherein a third antenna port group and a fourth antenna port group are associated with a fifth antenna port group and a sixth antenna port group, respectively, of the set of L antenna port groups; the indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

5. The method according to any of claims 1-3, wherein a large-scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold; the first threshold and the second threshold are positive numbers.

6. A method according to any one of claims 1 to 3, wherein step a further comprises the steps of:

-step A0. receiving the third signaling;

wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, or a transmission of the second information.

7. The method of claim 5, wherein step A further comprises the steps of:

-step A0. receiving the third signaling;

wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, or the second threshold.

8. The method of claim 2 or 3, wherein the second wireless signal is one of a reference signal, control signaling, and transmission data.

9. A method in a base station device used for multi-antenna transmission, comprising the steps of:

-step a. transmitting a first wireless signal;

-step b. receiving the first information and the second information;

wherein K antenna port groups are used to transmit the first wireless signal; the first information is used to determine a set of L antenna port groups; any one antenna port group in the set of L antenna port groups is one antenna port group in the K antenna port groups; said K and said L are both positive integers greater than 1; the first set of antenna port groups and the second set of antenna port groups are two of the L sets of antenna port groups; a first antenna port group is one antenna port group associated with one antenna port group of the first set of antenna port groups; the second set of antenna ports is one antenna port group associated with one antenna port group of the second set of antenna port groups; the second information is used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group.

10. The method of claim 9, further comprising the steps of:

-step c. sending a first signaling;

-step d. transmitting a second wireless signal;

11. The method of claim 9, further comprising the steps of:

-step c. sending a second signaling;

-step d. transmitting a second wireless signal;

12. The method according to any of claims 9 to 11, wherein a fifth antenna port group and a fourth antenna port group are associated with a fifth antenna port group and a sixth antenna port group, respectively, of said set of L antenna port groups; the indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

13. The method according to any of claims 9-11, wherein a large-scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold; the first threshold and the second threshold are positive numbers.

14. The method according to any one of claims 9 to 11, wherein step a further comprises the steps of:

step A0. sending a third signaling;

15. The method of claim 13, wherein step a further comprises the steps of:

step A0. sending a third signaling;

16. The method of claim 10 or 11, wherein the second wireless signal is one of a reference signal, control signaling, and transmission data.

17. A user equipment for multi-antenna transmission, comprising the following modules:

-a first receiving module: is used for receiving a first wireless signal;

18. The UE of claim 17, wherein the first receiving module is further configured to receive a first signaling and receive a second wireless signal; wherein the second information is used to determine that the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to transmit the second wireless signals.

19. The UE of claim 17, wherein the first receiving module is further configured to receive a second signaling and receive a second wireless signal; wherein the second information is used to determine that the user equipment cannot simultaneously receive the wireless signals simultaneously transmitted by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to transmit the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

20. The user equipment according to any of claims 17 to 19, wherein a fifth antenna port group and a fourth antenna port group are associated with a fifth antenna port group and a sixth antenna port group, respectively, of the set of L antenna port groups; the indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether the user equipment is capable of simultaneously receiving wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

21. The user equipment according to any of claims 17-19, wherein a large scale channel correlation between any one antenna port of the first set of antenna port groups and any one antenna port of the second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold; the first threshold and the second threshold are positive numbers.

22. The user equipment according to any of claims 17 to 19, wherein the first receiving module is further configured to receive a third signaling; wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, or a transmission of the second information.

23. The UE of claim 21, wherein the first receiving module is further configured to receive a third signaling; wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, or the second threshold.

24. The user equipment of claim 18 or 19, wherein the second wireless signal is one of a reference signal, control signaling and transmission data.

25. A base station device used for multi-antenna transmission, comprising the following modules:

-a first sending module: is used for transmitting a first wireless signal;

26. The base station device of claim 25, wherein the first transmitting module is further configured to transmit a first signaling and to transmit a second wireless signal; wherein the second information is used to determine that a sender of the first information can simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, and the first signaling is used to determine that the first antenna port group and the second antenna port group are simultaneously used to send the second wireless signals.

27. The base station device of claim 25, wherein the first transmitting module is further configured to transmit a second signaling and to transmit a second wireless signal; wherein the second information is used to determine that a sender of the first information cannot simultaneously receive wireless signals simultaneously sent by the first antenna port group and the second antenna port group, the second signaling is used to determine that the first antenna port group and the second antenna port group are respectively used to send the second wireless signals on a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource are orthogonal in a time domain.

28. The base station apparatus according to any of claims 25 to 27, wherein a fifth antenna port group and a fourth antenna port group are associated with a fifth antenna port group and a sixth antenna port group, respectively, of said set of L antenna port groups; the indices of the fifth antenna port group and the sixth antenna port group in the K antenna port groups are used to determine whether a sender of the first information can simultaneously receive wireless signals simultaneously transmitted using the third antenna port group and the fourth antenna port group.

29. The base station device according to any of claims 25 to 27, wherein a large-scale channel correlation between any one antenna port of said first set of antenna port groups and any one antenna port of said second set of antenna port groups is below a first threshold; or the large-scale channel correlation between any two antenna ports in any one of the L antenna port group sets is higher than a second threshold; the first threshold and the second threshold are positive numbers.

30. The base station device according to any of claims 25 to 27, wherein said first sending module is further configured to send a third signaling; wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, or a transmission of the second information.

31. The base station device of claim 29, wherein the first transmitting module is further configured to transmit a third signaling; wherein the third signaling is used to determine at least one of the K antenna port groups, the L, a number of antenna port groups in the L antenna port sets, the transmission of the second information, the first threshold, or the second threshold.

32. The base station device of claim 26 or 27, wherein the second wireless signal is one of a reference signal, control signaling and transmission data.