CN107306146B

CN107306146B - Port and beam configuration method and device

Info

Publication number: CN107306146B
Application number: CN201610244655.2A
Authority: CN
Inventors: 王小鹏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-04-19
Filing date: 2016-04-19
Publication date: 2021-07-30
Anticipated expiration: 2036-04-19
Also published as: CN107306146A

Abstract

The invention provides a method and a device for configuring ports and beams, wherein the method comprises the following steps: the first node determines the total number N of ports and the maximum number M of beams on each port; the first node sends the configured parameter K and/or parameter J to the terminal through high-level signaling or physical layer signaling; in the process of beam training between a first node and a terminal, the first node receives J port groups fed back by the terminal, a port index corresponding to each port group and a beam corresponding to each port; the first node determines a port index allocated to each terminal and a beam corresponding to each port, and transmits the determined port index and beam to each terminal through higher layer signaling or physical layer signaling. The invention solves the problems of unreasonable port allocation, low system efficiency and high beam training overhead in the related technology.

Description

Port and beam configuration method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for configuring a port and a beam.

Background

With the continuous progress of radio technology, various radio services emerge in large quantities, and the spectrum resources supported by the radio services are limited, so that the spectrum resources between 300MHz and 3GHz mainly used by the traditional commercial communication show a very tight situation in the face of the continuous increase of the bandwidth requirements of people, and the requirements of the future wireless communication cannot be met.

In future wireless communication, a carrier frequency higher than that used by a fourth generation (4G) communication system will be used for communication, such as 28GHz, 45GHz, and the like, and such a high-frequency channel has the disadvantages of large free propagation loss, easy oxygen absorption, large influence of rain attenuation, and the like, and seriously affects the coverage performance of the high-frequency communication system, and in order to ensure that the high-frequency communication and the LTE system have approximate SINR in coverage, it is necessary to ensure the antenna gain of the high-frequency communication. Fortunately, because the carrier frequency corresponding to the high-frequency communication has a shorter wavelength, it can be ensured that more antenna elements can be accommodated in a unit area, and the more antenna elements mean that the antenna gain can be improved by adopting a beam forming method, thereby ensuring the coverage performance of the high-frequency communication.

However, due to the large number of antennas and the cost, the beamforming in the high frequency band generally adopts a form of hybrid beamforming, that is, the number of system ports (also referred to as rf (radio frequency) chains) is smaller than the number of antennas (arrays), one port corresponds to a plurality of arrays, and each port can adjust the amplitude and phase of each corresponding array at the radio frequency end, so as to generate different beams at the radio frequency end. If the baseband has a plurality of ports, each port can correspond to a radio frequency beam, and the plurality of ports can further perform baseband beam forming. The form of the mixed beam forming of the base band and the radio frequency is obviously different from the beam forming adopted by the current LTE system, and the most obvious difference is that the beam forming in the LTE system is the beam forming of the base band and the beam forming of a radio frequency end is not adopted.

Compared with baseband beamforming, rf beamforming has an important characteristic that different Frequency resources of the same port can only correspond to one rf weight vector (rf beam), and such a constraint brings inconvenience to system scheduling, that is, if a system has only one port, there are two users to be scheduled, and if the optimal rf weight vectors of the two users are not consistent, then all Frequency resources in a bandwidth can only be allocated to the same user at the same time (in LTE, corresponding to one Orthogonal Frequency Division Multiplexing (OFDM) symbol), even if there is a surplus of Frequency resources, another user cannot use the Frequency resources. This problem is exacerbated when the system has multiple ports, because the probability that the RF weight vectors of different users are the same on all ports is lower, and if one user occupies all RF chains, resource reuse among different users is not facilitated, which is very inefficient for the whole system. Thus, in a high frequency system the RF chains can be seen as resources to be allocated to different users as needed.

In addition, when a radio frequency beam is introduced, when data is transmitted at both transmitting and receiving ends, beam training is required to complete the functions of beam alignment, beam tracking, beam switching and the like. When the system has a plurality of RF chains and each RF has a plurality of RF weight vectors, the time overhead and the calculation overhead of the system for beam training are high. In view of the above problems in the related art, no effective solution exists at present.

Disclosure of Invention

The invention provides a method and a device for configuring ports and beams, which are used for at least solving the problems of unreasonable port allocation, low system efficiency and high beam training overhead in the related technology.

According to another aspect of the present invention, there is provided a port and beam configuration method, including: the first node determines the total number N of ports and the maximum number M of beams on each port, wherein each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams; the first node sends a configured parameter K and/or a configured parameter J to a terminal through a high-level signaling or a physical layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents the number of the port groups to be fed back by the terminal; in the process of beam training between the first node and a terminal, the first node receives J port groups fed back by the terminal, a port index corresponding to each port group and a beam corresponding to each port; the first node determines a port index allocated to each terminal and a beam corresponding to each port, and transmits the determined port index and beam to each terminal through high-layer signaling or physical layer signaling.

Further, the first node determines parameters K and J by information of at least one of: the number of terminals accessed to the first node; a location of a terminal accessed to the first node; channel state information of a terminal accessed to the first node; a demand level of data for access to a terminal of the first node.

Further, the value of K and the value of J satisfy all of the following conditions: the value of K and the value of J are integers which are respectively greater than or equal to 1 and less than or equal to the value of N; the result of multiplying the value of K by the value of J is less than or equal to the value of N; the result of comparing the value of N with the value of K is an integer; and the value of K is greater than or equal to the result of comparing the value of N with the value of P, wherein P is the number of terminals with data requirements under the first node.

Further, the method further comprises: and when the first node sends the parameter K and the parameter J to the terminal, the first node configures the parameter K and the parameter J to each terminal independently.

Further, the first node configuring the parameter K and the parameter J to each terminal separately includes: the first node divides the N RF chains into N/K groups according to the value of K, wherein the RF chain index in each group which is divided is determined, and the terminal selects J groups from the groups which are divided for feedback according to the determined RF chain index.

Further, the method further comprises: the first node transmits one of the parameter K and the parameter J to a terminal, wherein the parameter not transmitted by the first node is determined by the terminal through the following formula: k × J ═ N.

Further, the beam training between the first node and the terminal includes: on different beams of the same port, the first node sends pilot frequency to the terminal in a time division mode to carry out training between different beams of different ports and each port; or, on different ports, the first node sends pilot frequency to the terminal in a frequency division or code division manner to perform training between different beams of different ports.

According to still another aspect of the present invention, there is provided a port and beam configuration method, including: a terminal receives the total number N of ports and the maximum number M of beams on each port, wherein the total number N of the ports and the maximum number M of the beams are sent by a first node, each port corresponds to a Radio Frequency (RF) chain one by one, and each port corresponds to a group of beams; a terminal receives two parameters K and a parameter J sent by a first node through a physical layer signaling or a high layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents the number of the port groups to be fed back by the terminal; the terminal feeds back J port groups, port indexes corresponding to each port group, beams corresponding to each port and channel state information to the first node according to the result of beam training of the first node and the terminal; and the terminal receives the configuration information of the port and the beam sent by the first node through physical layer signaling or high layer signaling.

Further, the terminal feeds back J port groups to the first node according to a result of the beam training performed by the first node and the terminal, where a port index corresponding to each port group, a beam corresponding to each port, and channel state information include: the terminal distributes the throughput achieved when the terminal transmits data according to the K ports, and feeds back J groups and beams corresponding to each port in each group together according to the K ports as one group; the feedback content of the first group comprises K port indexes corresponding to the maximum throughput of the terminal and beams on each port, the feedback content of the second group comprises K port indexes corresponding to the second maximum throughput and beams on each port, or the feedback content of the second group comprises K port indexes corresponding to the maximum throughput of the terminal except the first K ports and beams on each port; by analogy, the J-th group feedback content includes K port indexes corresponding to the J-th group with the largest throughput and a beam on each port, or the J-th group feedback content includes K port indexes corresponding to the J-1 group with the largest throughput except the ports of the terminal and a beam on each port.

Further, the channel state information includes at least one of: channel Quality Indication (CQI) information, P codebook index (MI) information and Rank Indication (RI) information corresponding to each port group in the J port groups.

According to another aspect of the present invention, there is provided a port and beam configuration method, including: the first node determines the total number N of ports and the maximum number M of beams on each port; the first node sends the terminal parameter M through physical layer signaling or high layer signaling^subOr, the parameter K and the parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the first node determines a beam index of each port during beam training and performs beam training with a terminal; and the first node receives K port indexes fed back by the terminal and the beam corresponding to each port, and sends the port and the beam to the terminal through physical layer signaling or high layer signaling.

Further, the first node determines parameters K and M by at least one of the following conditions^sub: the number of terminals accessed to the first node; a location of a terminal accessed to the first node; channel state information of a terminal accessed to the first node; a demand level of data for a user accessing the first node; a maximum number of beams per port of the first node.

Further, notifying the terminal parameter M at the first node through physical layer signaling or higher layer signaling^subThe K parameter is determined by the following formula:

informing the terminal parameter M at the first node by physical layer signaling or higher layer signaling^subAnd when the parameter K is reached, the first node sets the parameter K for each terminal independently and configures the parameter M^subThe same for all terminals.

Further, in the process of performing beam training, on different beams of the same port, the first node transmits pilot frequency in a time division manner to perform training between different beams of different ports, each port; in the process of beam training, the first node transmits pilot frequency in a frequency division or code division manner on different ports to perform training between different beams of different ports.

Further, the first node predetermines a set of packets for a port.

According to still another aspect of the present invention, there is provided a port and beam configuration method, including: the terminal receives the first node transmissionThe total number N of the sent ports and the maximum number M of the beams on each port, wherein each port corresponds to a radio frequency RF chain one by one and corresponds to a group of beams; the terminal receives the parameter M sent by the first node through the physical layer signaling or the high layer signaling^subOr, parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the terminal sends K port indexes and beams corresponding to each port to the first node according to the result of beam training of the terminal and the first node; the terminal sends channel state information to the first node; and the terminal receives the configuration information of the port and the beam which are distributed by the first node through physical layer signaling or high layer signaling.

Further, the terminal feeds back K port indexes corresponding to the maximum throughput and beams on each port to the first node according to the throughputs that are allocated to the terminal by the K ports when the terminal transmits data.

According to another aspect of the present invention, there is provided a port and beam configuration apparatus, applied to a first node side, including: a first determining module, configured to determine a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams; a sending module, configured to send a configured parameter K and/or a configured parameter J to a terminal through a high-level signaling or a physical-layer signaling, where K denotes the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J denotes the number of port groups that the terminal needs to feed back; a first receiving module, configured to receive, during a beam training process performed by the first node and a terminal, J port groups fed back by the terminal, a port index corresponding to each port group, and a beam corresponding to each port; and the configuration module is used for determining the port index allocated to each terminal and the beam corresponding to each port, and sending the determined port index and the beam to each terminal through high-layer signaling or physical layer signaling.

According to another aspect of the present invention, there is provided a port and beam configuration apparatus, applied to a terminal side, including: a second receiving module, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams; a third receiving module, configured to receive two parameters K and a parameter J that are sent by a first node through a physical layer signaling or a high layer signaling, where K denotes a number of ports allocated to a terminal by the first node during data transmission, K ports form a port group, and J denotes a number of port groups that the terminal needs to feed back; a feedback module, configured to feed back J port groups, a port index corresponding to each port group, a beam corresponding to each port, and channel state information to the first node according to a result of beam training performed by the first node and the terminal; a fourth receiving module, configured to receive configuration information of a port and a beam sent by the first node through a physical layer signaling or a higher layer signaling.

According to another aspect of the present invention, there is provided a port and beam configuration apparatus, applied to a first node side, including: a second determining module, configured to determine a total number N of ports and a maximum number M of beams on each port; a second sending module for sending the terminal parameter M through the physical layer signaling or the high layer signaling^subOr, parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the third determining module is used for determining the beam index of each port during beam training and performing beam training with the terminal; and the fifth receiving module is used for receiving the K port indexes fed back by the terminal and the beam corresponding to each port, and sending the port and the beam to the terminal through physical layer signaling or high layer signaling.

According to another aspect of the present invention, there is provided a port and beam configuration apparatus, applied to a terminal side, including: a sixth receiving module, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams; a seventh receiving module, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams; a seventh receiving module, configured to receive the parameter M sent by the first node through the physical layer signaling or the higher layer signaling^subOr, the parameter K and the parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; a third sending module, configured to send K port indexes and a beam corresponding to each port to the first node according to a result of beam training performed by the terminal and the first node; a fourth sending module, configured to send channel state information to the first node; an eighth receiving module, configured to receive configuration information of the port and the beam that are allocated by the first node through physical layer signaling or high layer signaling.

By the invention, a first node determines the total number N of ports and the maximum number M of beams on each port, wherein each port corresponds to a radio frequency RF chain one by one, each port also corresponds to a group of beams, and then the first node sends configured parameters K and/or J to a terminal through high-layer signaling or physical layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, J represents the number of the port groups to be fed back by the terminal, furthermore, in the process of beam training between the first node and the terminal, the first node receives the J value fed back by the terminal, the port index corresponding to each port group and the beam corresponding to each port group, and the first node determines the port index allocated to each terminal and the beam corresponding to each port and sends the determined port index and beam to each terminal through high-layer signaling or physical layer signaling, therefore, the port allocation is more reasonable, the system capacity is effectively improved, the time overhead and the calculation overhead of beam training are reduced, and the problems of unreasonable port allocation, low system efficiency and high beam training overhead in the related technology are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a first flowchart of a method for configuring a port and a beam according to an embodiment of the present invention;

fig. 2 is a second flowchart of a port and beam configuration method according to an embodiment of the present invention;

fig. 3 is a flowchart three of a port and beam configuration method according to an embodiment of the present invention;

fig. 4 is a fourth flowchart of a port and beam configuration method according to an embodiment of the present invention;

fig. 5 is a first block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention;

fig. 6 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention;

fig. 7 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention;

fig. 8 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention;

fig. 9 is a schematic diagram of hybrid beamforming in the case of antenna grouping according to an alternative embodiment of the present invention;

fig. 10 is a schematic diagram of hybrid beamforming in an antenna sharing scenario according to an alternative embodiment of the present invention;

fig. 11 is a schematic diagram of beam and user distribution according to embodiment 1 of the present invention;

fig. 12 is a schematic diagram of beam and user distribution according to embodiment 2 of the present invention;

fig. 13 is a schematic diagram of beam and user distribution according to embodiment 3 of the present invention;

fig. 14 is a schematic diagram of beams and user distribution according to embodiment 4 of the present invention;

fig. 15 is a schematic diagram of beams and user distribution according to embodiment 5 of the present invention;

fig. 16 is a schematic diagram of beams and user distribution according to embodiment 6 of the present invention;

fig. 17 is a schematic diagram of beams and user distribution according to embodiment 7 of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In this embodiment, a first method for configuring a port and a beam is provided, and fig. 1 is a first flowchart of a method for configuring a port and a beam according to an embodiment of the present invention, as shown in fig. 1, the process includes the following steps:

step S102: the first node determines the total number N of ports and the maximum number M of beams on each port, wherein each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams;

step S104: the first node sends the configured parameter K and/or parameter J to the terminal through a high-level signaling or a physical layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents the number of the port groups to be fed back by the terminal;

step S106: in the process of beam training between a first node and a terminal, the first node receives J port groups fed back by the terminal, a port index corresponding to each port group and a beam corresponding to each port;

step S108: the first node determines a port index allocated to each terminal and a beam corresponding to each port, and transmits the determined port index and beam to each terminal through higher layer signaling or physical layer signaling.

Through the above steps S102 to S108 of the present invention, the first node determines the total number N of ports and the maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, each port also corresponds to a group of beams, and then the first node sends the configured parameter K and/or J to the terminal through a high layer signaling or a physical layer signaling, where K denotes the number of ports allocated to the terminal by the first node during data transmission, K denotes a port group, and J denotes the number of port groups that the terminal needs to feed back, and further, during the beam training process between the first node and the terminal, the first node receives the J value fed back by the terminal, the port index corresponding to each port group, and the beam corresponding to each port group, and the first node determines the port index allocated to each terminal and the beam corresponding to each port, and the determined port index and the beam are sent to each terminal through a high-layer signaling or a physical layer signaling, so that the port allocation is more reasonable, the system capacity is effectively improved, the time overhead and the calculation overhead of beam training are reduced, and the problems of unreasonable port allocation, lower system efficiency and higher beam training overhead in the related art are solved.

It should be noted that the first node in this embodiment is preferably a base station.

In an optional implementation manner of this embodiment, the first node in this embodiment may determine the parameters K and J through information of at least one of the following: the number of terminals accessed to the first node; a location of a terminal accessed to a first node; channel state information of a terminal accessed to a first node; a demand level of data for a terminal accessing the first node.

In addition, the values of K and J related in this embodiment satisfy all of the following conditions: the value of K and the value of J are integers which are respectively greater than or equal to 1 and less than or equal to the value of N; the result of multiplying the value of K by the value of J is less than or equal to the value of N; the result of comparing the value of N with the value of K is an integer; and comparing the value of K which is greater than or equal to the value of N with the value of P, wherein P is the number of terminals with data requirements under the first node.

In an optional implementation manner of this embodiment, the method of this embodiment may further include: when a first node sends the parameter K and the parameter J to the terminal, the first node separately configures the parameter K and the parameter J to each terminal, and in a specific application scenario, the configuration mode may be: the first node divides the N RF chains into N/K groups according to the value of K, wherein the RF chain index in each group which is divided is determined, and then the terminal can select J groups from the groups which are divided for feedback according to the determined RF chain index.

Furthermore, in another optional implementation manner of this embodiment, the first node sends one of the parameter K and the parameter J to the terminal, where the parameter that is not sent by the first node is determined by the terminal through the following formula: k × J ═ N.

And, performing beam training on the first node and the terminal involved in this embodiment includes: on different beams of the same port, a first node sends pilot frequency to a terminal in a time division mode to carry out training among different beams of different ports and each port; or, on different ports, the first node sends pilot frequency to the terminal in a frequency division or code division manner so as to perform training between different beams of different ports.

Fig. 2 is a flowchart of a second method for configuring a port and a beam according to an embodiment of the present invention, as shown in fig. 2, the method includes the steps of:

step S202: a terminal receives the total number N of ports and the maximum number M of beams on each port, wherein the total number N of the ports and the maximum number M of the beams are sent by a first node, each port corresponds to a Radio Frequency (RF) chain one by one, and each port corresponds to a group of beams;

step S204: a terminal receives two parameters K and J sent by a first node through a physical layer signaling or a high layer signaling, wherein K represents the number of ports distributed to the terminal by the first node during data transmission, K ports form a port group, and J represents the number of the port groups to be fed back by the terminal;

step S206: the terminal feeds back J port groups, port indexes corresponding to each port group, beams corresponding to each port and channel state information to the first node according to the result of beam training performed by the first node and the terminal;

step S208: and the terminal receives the configuration information of the port and the beam sent by the first node through physical layer signaling or high layer signaling.

In an optional implementation manner of this embodiment, the terminal involved in step S208 feeds back J port groups, a port index corresponding to each port group, a beam corresponding to each port, and a manner of channel state information to the first node according to a result of beam training performed by the first node and the terminal, in a specific application scenario, the manner may be: the terminal distributes the throughput achieved when the terminal transmits data according to the K ports, and feeds back J groups and beams corresponding to each port in each group together according to the K ports as one group; the feedback content of the first group comprises K port indexes corresponding to the maximum throughput of the terminal and beams on each port, the feedback content of the second group comprises K port indexes corresponding to the second maximum throughput and beams on each port, or the feedback content of the second group comprises K port indexes corresponding to the maximum throughput of the terminal except the first K ports and beams on each port; by analogy, the J-th group feedback content includes K port indexes corresponding to the J-th group with the largest throughput and a beam on each port, or the J-th group feedback content includes K port indexes corresponding to the J-1 group with the largest throughput except the ports of the terminal and a beam on each port.

The channel state information involved in this embodiment includes at least one of the following: channel Quality Indication (CQI) information, P codebook index (MI) information and Rank Indication (RI) information corresponding to each port group in the J port groups.

It should be noted that fig. 1 and fig. 2 respectively describe the configuration schemes of the ports and the beams based on the full beam training from the first node side and the terminal side. The present embodiment also provides a port and beam feedback scheme for simplifying beam training, as in the embodiments shown in fig. 3 and fig. 4, which are also introduced from the first node side and the terminal side, respectively.

Fig. 3 is a flowchart three of a configuration method of ports and beams according to an embodiment of the present invention, as shown in fig. 3, the method includes the steps of:

step S302: the first node determines the total number N of ports and the maximum number M of beams on each port;

step S304: the first node sends the terminal parameter M through physical layer signaling or high layer signaling^subOr, the parameter K and the parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training;

step S306: the first node determines the beam index of each port during beam training and performs beam training with the terminal;

step S308: and the first node receives K port indexes fed back by the terminal and the beam corresponding to each port, and sends the port and the beam to the terminal through physical layer signaling or high layer signaling.

It should be noted that the first node determines the parameters K and M by at least one of the following conditions^sub: the number of terminals accessed to the first node; a location of a terminal accessed to a first node; channel state information of a terminal accessed to a first node; a demand level of data of a user accessing to the first node; the maximum number of beams per port of the first node.

In addition, in an optional implementation manner of this embodiment, the first node notifies the terminal parameter M through physical layer signaling or higher layer signaling^subThe K parameter is determined by the following formula: informing the terminal parameter M at the first node by physical layer signaling or higher layer signaling^subAnd when the parameter K is added, the first node sets the parameter K for each terminal independently and configures the parameter M^subThe same for all terminals.

In addition, in the process of beam training, on different beams of the same port, the first node transmits pilot frequency in a time division mode to train different ports, wherein each port trains different beams; in the process of beam training, on different ports, the first node transmits pilot frequency in a frequency division or code division mode to perform training between different beams of different ports.

And, the first node in this embodiment may also determine a packet set of the port in advance. And when the terminal feeds back, only a best port set can be found in the determined packet set for feedback, and a preferred beam on each port in the port set is fed back.

Fig. 4 is a fourth flowchart of a method for configuring a port and a beam according to an embodiment of the present invention, as shown in fig. 4, the method includes the steps of:

step S402: a terminal receives the total number N of ports and the maximum number M of beams on each port, wherein the total number N of the ports and the maximum number M of the beams are sent by a first node, each port corresponds to a Radio Frequency (RF) chain one by one, and each port corresponds to a group of beams;

step S404: the terminal receives the parameter M sent by the first node through the physical layer signaling or the high layer signaling^subOr, parameter K and parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training;

step S406: the terminal sends K port indexes and beams corresponding to each port to the first node according to the result of beam training of the terminal and the first node;

step S408: the terminal sends channel state information to the first node;

step S410: and the terminal receives the configuration information of the allocated ports and beams sent by the first node through physical layer signaling or high layer signaling.

In an optional implementation manner of this embodiment, the terminal feeds back, to the first node, K port indexes and beams on each port corresponding to the time when the throughput is maximum according to the throughputs that are achieved when the K ports are allocated to the terminal to transmit data. The channel state information includes at least one of: channel Quality Indication (CQI) information, P codebook index (MI) information and Rank Indication (RI) information corresponding to each port group in the J port groups.

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

In this embodiment, a port and beam configuration apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description of the apparatus is omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 5 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention, which is applied to a first node side, as shown in fig. 5, the apparatus includes: a first determining module 52, configured to determine a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain and each port corresponds to a group of beams; a first sending module 54, coupled to the first determining module 52, configured to send a configured parameter K and/or a configured parameter J to the terminal through a high-level signaling or a physical-layer signaling, where K denotes the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J denotes the number of port groups that the terminal needs to feed back; a first receiving module 56, coupled to the first sending module 54, configured to receive, during a beam training process performed between the first node and the terminal, J port groups fed back by the terminal, a port index corresponding to each port group, and a beam corresponding to each port; a configuration module 58, coupled to the first receiving module 56, for determining a port index allocated to each terminal and a beam corresponding to each port, and sending the determined port index and beam to each terminal through higher layer signaling or physical layer signaling.

Fig. 6 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention, which is applied to a terminal side, as shown in fig. 6, the apparatus includes: a second receiving module 62, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams; a third receiving module 64, coupled to the second receiving module 62, configured to receive a parameter K and a parameter J that are sent by the first node through a physical layer signaling or a higher layer signaling, where K denotes the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J denotes the number of port groups that the terminal needs to feed back; a feedback module 66, coupled to the second receiving module 64, configured to feed back J port groups, a port index corresponding to each port group, a beam corresponding to each port, and channel state information to the first node according to a result of beam training performed by the first node and the terminal; and a fourth receiving module 68, coupled to the feedback module 66, configured to receive the configuration information of the port and the beam sent by the first node through the physical layer signaling or the higher layer signaling.

Fig. 7 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention, which is applied to a first node side, and as shown in fig. 7, the apparatus includes: a second determining module 72, configured to determine a total number N of ports and a maximum number M of beams on each port; a second sending module 74, coupled to the second determining module 72, for sending a parameter M of the terminal through physical layer signaling or higher layer signaling^subOr two parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; a third determining module 76 coupled to the second transmitting module 74 for determining the waveThe beam index of each port is used for beam training, and the beam training is carried out with the terminal; and a fifth receiving module 78, coupled to the third determining module 76, configured to receive the K port indexes fed back by the terminal and the beam corresponding to each port, and send the port and the beam to the terminal through physical layer signaling or higher layer signaling.

Fig. 8 is a block diagram of a configuration apparatus of ports and beams according to an embodiment of the present invention, which is applied to a terminal side, as shown in fig. 8, the apparatus includes: a sixth receiving module 802, configured to receive a total number N of ports and a maximum number M of beams on each port sent by the first node, where each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams; a seventh receiving module 804, configured to receive a parameter M sent by the first node through physical layer signaling or higher layer signaling^subOr, two parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; a third sending module 806, coupled to the fifth receiving module 804, configured to send K port indexes and a beam corresponding to each port to the first node according to a result of beam training performed by the terminal and the first node; a fourth sending module 808, coupled to the third sending module 806, configured to send the channel state information to the first node; an eighth receiving module 810, coupled to the fourth sending module 808, is configured to receive configuration information of the port and the beam that are allocated by the first node through physical layer signaling or higher layer signaling.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in a plurality of processors.

The invention will now be illustrated with reference to an alternative embodiment thereof;

fig. 9 is a schematic diagram of hybrid beamforming under the condition of antenna grouping according to an alternative embodiment of the present invention, and fig. 10 is a schematic diagram of hybrid beamforming under the condition of antenna sharing according to an alternative embodiment of the present invention, as shown in fig. 9 and fig. 10, the alternative embodiment is mainly directed to the scheme given in the antenna grouping condition, and of course, for the condition of antenna sharing, the scheme of the alternative embodiment is still applicable, but the applicability and the performance may be reduced.

Firstly, a high-frequency downlink port (RF chain) based on complete beam training and a beam configuration and feedback scheme are adopted;

the system in this optional embodiment has N RF chains, each RF chain has M beams, and the base station notifies each terminal according to relevant information (number of users, location of users, available resources of the system, etc.) according to a certain period T, the number K of RF chains to which the base station prepares to allocate each terminal in this period, and the number J of RF chain groups (K RF chains are a group) to which the terminal needs to feed back, where K and J of each terminal under one base station may be different.

In a period T, the base station performs several times of beam training, after each time of beam training is finished, the terminal learns channel conditions of all N RF chains and all M beams on each RF chain, and then the terminal feeds back port and beam information to the base station according to throughput, where the feedback content includes J RF chain groups with the maximum throughput and a preferred beam corresponding to each RF chain in the J RF chain groups. The base station may group all RF chains in advance so that the terminal may find the best J groups among the predetermined groups for feedback.

Finally, the base station determines the number of RF chains occupied by each terminal and the preferred wave beam on each RF chain according to the feedback of each terminal and other information, and informs the terminal of relevant information so as to transmit and receive downlink data in the following process.

High frequency port (RF chain) and beam configuration and feedback scheme based on simplified beam training

The base station informs a terminal parameter K according to factors such as the number of RF chains, the number of beams on each RF chain, the number P of users needing to be scheduled, the position of the users and the like according to a certain period T, wherein the K has two functions: 1) k represents the number of RF chains distributed to the UE by the base station during data transmission, and 2) the actual number of beams on each RF chain of the base station during the beam training can be determined through K;

the base station and the terminal perform downlink beam training according to the number of the RF chains and the actual number of the beams on each RF chain during the beam training of the time calculated by K; then, the terminal needs to feed back the K RF chains in the best group and the preferred beam on each RF chain according to the maximum throughput principle in the predetermined RF chain groups, and finally, the base station determines the transmission beam on each RF chain according to the relevant feedback and measurement information, and performs downlink service data transmission and reception with the terminal;

example 1

In downlink transmission, assuming that the base station has 8 RF chains, the maximum number of beams on each RF chain is 24, the base station notifies two parameters K and J to each user under the base station at a period T: wherein K represents the number of RF chains allocated to the UE by the base station during data transmission, and J represents the number of groups of RF chains (K RF chains are a group) that the UE needs to feed back. A certain time t0 is a time at which the two parameters are periodically transmitted, fig. 11 is a schematic diagram of beam and user distribution according to embodiment 1 of the present invention, as shown in fig. 11, only one user UE1 under the base station has a data scheduling requirement, and in case that only one user needs to transmit data, in order to maximize gain of multiple ports, a reasonable scheme is to allocate all RF chains to the user. Therefore, at time t0, the two parameters that the base station notifies the UE1 are K equal to 8 and J equal to 1, respectively.

And then, beam training is performed for a plurality of times within a period T, the result of the beam training is that the UE1 can know the channel conditions of all 8 RF chains and all 24 beams on each RF chain, after each beam training is finished, the UE1 performs feedback of the preferred beam on each RF chain and feeds back information such as CQI, RI, PMI and the like corresponding to the feedback according to the maximum throughput obtained by the user on the basis that all 8 RF chains are allocated to the UE.

And the base station determines the allocation and scheduling scheme of the UE according to the feedback and the related information, informs the UE of the related information, and transmits downlink data.

When the next notification moment comes, the base station notifies the values of the terminals K and J according to the related information such as the number of users needing to be scheduled.

Example 2

In downlink transmission, assuming that the base station has 4 RF chains, the maximum number of beams on each RF chain is 24, the base station notifies two parameters K and J to each user under the base station in a period T: wherein K represents the number of RF chains allocated to the UE by the base station during data transmission, and J represents the number of groups of RF chains (K RF chains are a group) that the UE needs to feed back. A certain time t0 is a time at which the two parameters are periodically transmitted, fig. 12 is a schematic diagram of beam and user distribution according to embodiment 2 of the present invention, as shown in fig. 12, only 2 users under the base station have data scheduling requirements, which are UE1 respectively. UE 2. In the case of full beam training, it is assumed that two parameters K and J that the base station has agreed to notify the UE satisfy the relationship K × J — 4. At time t0, the base station informs UE1 and UE2 that the parameters K are the same and K is 2 according to the relevant information, and J is 2 according to the constraint of the two. And the base station has already determined the grouping well in advance, when K is 2, the RF chains are divided into 2 groups, which are { (1, 2), (3, 4) }, respectively, and the user can only perform feedback according to the group when feeding back.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire the channel conditions of all 4 RF chains and all 24 beams on each RF chain, and after each time of the beam training is finished, each UE performs feedback of the RF chain group and the preferred beam of each RF chain in the group according to 2 RF chains allocated to the UE, and feeds back information such as CQI, RI, PMI and the like corresponding to each RF chain group. Assume that the content fed back by each UE is UE 1: { (3-22, 4-21), (3-22, 4-22) }, UE 2: { (3-4, 4-3), (1-4, 2-5) }; the meaning of the feedback information is described by taking UE1 as an example, where {3-22, 4-21), (3-22, 4-22) } indicates that, for UE1, according to a predetermined packet, when the throughput is the maximum, the indexes of the corresponding RF chains are 3 and 4, and the preferred beams corresponding to each RF chain are 22 and 21, respectively, and when the throughput is the second largest, the indexes of the corresponding RF chains are 3 and 4, and the preferred beams corresponding to each RF chain are 22 and 22, respectively, and the feedback information further includes information such as CQI, RI, PMI, and the like corresponding to each RF chain group. The meaning of the UE2 feedback information is similar.

The base station determines the final RF chain allocation scheme of each UE to be UE1 according to the feedback and the related information: (3-22, 4-21), UE 2: (1-4,2-5). Because the preferred beams of each UE are better spatially isolated, when data is transmitted to 2 UEs at the same time, resource multiplexing may be performed, that is, 2 users may use the same resource to perform downlink data transmission. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

Example 3

In downlink transmission, assuming that the base station has 4 RF chains, the maximum number of beams on each RF chain is 24, the base station notifies two parameters K and J to each user under the base station in a period T: wherein K represents the number of RF chains allocated to the UE by the base station during data transmission, and J represents the number of groups of RF chains (K RF chains are a group) that the UE needs to feed back. A certain time t0 is a time at which the two parameters are periodically transmitted, and fig. 13 is a schematic diagram of beam and user distribution according to embodiment 3 of the present invention, as shown in fig. 13, only 4 users under the base station have data scheduling requirements, which are UE1-UE4, respectively. In the case of full beam training, the base station notifies the UE1-UE4 that the two parameters are the same, and K is 1 and J is 4 respectively, at time t0 according to the related information. And the base station has already determined the grouping well in advance, when K equals 1, the RF chains are divided into 4 groups, which are { (1), (2), (3), (4) }, respectively, when the user feeds back, the user can only feed back according to the group, and the intersection of the multiple sets of RF chain indexes fed back by each UE is defined as an empty set.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire the channel conditions of all 4 RF chains and all 24 beams on each RF chain, and after each time of the beam training is finished, each UE performs feedback of the RF chain group and the preferred beam of each RF chain in the group according to 1 RF chain allocated to the UE, and feeds back information such as CQI, RI, PMI and the like corresponding to each RF chain group. Assume that the content fed back by each UE is UE 1: { (3-22), (2-22), (4-22), (1-22) }, UE 2: { (1-4), (3-4), (4-4), (2-4) }, UE 3: { (3-10), (1-10), (4-10), (2-10) }, UE 4: { (1-16), (4-16), (3-16), (2-16) }, which takes UE1 as an example to illustrate the meaning of the feedback information, { (3-22), (2-22), (4-22), (1-22) } indicates that, for UE1, according to a predetermined packet, when the throughput is maximum, the index of the corresponding RF chain is 3, the preferred beam corresponding to RF chain 3 is 22, when the throughput is the second largest, the index of the corresponding RF chain is 2, the corresponding preferred beam is 22, when the throughput is the third largest, the corresponding RF index is 4, the corresponding preferred beam is 22, when the throughput is the fourth largest, the index of the corresponding RF chain is 1, the corresponding preferred beam is 22, and the feedback information such as CQI, RI, PMI, and the like corresponding to each RF chain group is also included in the feedback information. The other UEs feedback information has similar meaning.

The base station determines the final RF chain allocation scheme of each UE according to the feedback and the related information, that is, RF chain 2 is allocated to UE1, data transmission is performed by using beam 22, RF chain 1 is allocated to UE2, data transmission is performed by using beam 4, RF chain 3 is allocated to UE3, data transmission is performed by using beam 10, RF chain 4 is allocated to UE4, and data transmission is performed by using beam 16. Because the preferred beams of each UE are better spatially isolated, when data is transmitted to 4 UEs at the same time, resource multiplexing may be performed, that is, 4 users may use the same resource to perform downlink data transmission. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

Example 4

In downlink transmission, assuming that the base station has 8 RF chains, the maximum number of beams on each RF chain is 24, the base station notifies two parameters K and J to each user under the base station at a period T: wherein K represents the number of RF chains allocated to the UE by the base station during data transmission, and J represents the number of groups of RF chains (K RF chains are a group) that the UE needs to feed back. A certain time t0 is a time when the two parameters are periodically transmitted, and fig. 14 is a schematic diagram of beam and user distribution according to embodiment 4 of the present invention, as shown in fig. 14, when four users under the base station have data scheduling requirements. Under the condition of complete beam training, the base station informs each UE of values of two parameters K and J at a time t0 according to related information, and for UE1, K is 4, and J is 1; for other users, K ═ 2, J ═ 4; and the base station has previously determined a packet, when K is 4, the RF chains are divided into 2 groups, which are { (1, 2, 3, 4), (5, 6, 7, 8) }, when K is 2, the RF chains are divided into 4 groups { (1, 2), (3, 4), (5, 6), (7, 8) }, when the user feeds back, the user can only feed back according to the group, and the intersection of the multiple sets of RF chain indexes fed back by each UE is specified as an empty set.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire channel conditions of all 8 RF chains and all 24 beams on each RF chain, after each time of the beam training is finished, the UE1 performs feedback of the RF chain group and each RF chain preferred beam in the group according to the 4 RF chains allocated to the UE, and other UEs perform feedback of the RF chain group and each RF chain preferred beam in the group according to the 2 RF chains allocated to the UE.

Example 4 will now be described by way of two alternative embodiments;

alternative embodiment 1

Assume that the content fed back by each UE is UE 1: { (5-22, 6-23, 7-22, 8-21) }, UE 2: { (1-4, 2-5), (5-3, 6-5), (7-4, 8-4), (3-4, 4-3) }, UE 3: { (5-3, 6-5), (1-3, 2-5), (3-4), (7-4, 8-3) }, UE 4: { (3-16, 4-15), (7-16, 8-16), (1-17, 2-15), (5-15, 6-16) }, which takes UE1 and UE2 as examples to illustrate the meaning of the feedback information, { (5-22, 6-23, 7-22, 8-21) } denotes that for UE1, when the throughput is maximum, the index of the RF chain is 5, 6, 7, 8, and the preferred beam corresponding to each RF chain is 22, 23, 22, and 21, respectively. { (1-4, 2-5), (5-3, 6-5), (7-4, 8-4), (3-4, 4-3) } indicates that, for the UE2, the index of the corresponding RF chain is 1, 2 and the corresponding preferred beam indexes are 4 and 5 when the throughput is maximum, the RF chain indexes are 5 and 6 when the throughput is the second largest, the preferred beam indexes are 3 and 5, the RF indexes are 7 and 8 when the throughput is the third largest, the indexes of the corresponding preferred beam are 4 and 4, and the RF chain indexes are 3 and 4 when the throughput is the fourth largest, the preferred beam indexes are 4 and 3. In addition, the feedback information also includes information such as CQI, RI, PMI, etc. corresponding to each RF chain group. The other UEs feedback information has similar meaning.

The base station determines the final RF chain of each UE and the distribution scheme of the corresponding beam according to the feedback and the relevant information as follows: the RF chains used by UE1 and the transmit beams corresponding to each RF chain are (5-22, 6-23, 7-22, 8-21), the RF chains used by UE2 and the transmit beams corresponding to each RF chain are (1-4, 2-5), UE3 does not schedule at this time, and the RF chains used by UE4 and the transmit beams corresponding to each RF chain are (3-16, 4-15). Since the spatial isolation of the preferred beam of each scheduled UE is good, when data is transmitted to 3 UEs simultaneously, resource multiplexing can be performed, that is, 3 users can use the same resource to perform downlink data transmission. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

Alternative embodiment 2

Assume that the content fed back by each UE is UE 1: { (1-22, 2-23, 3-22, 4-21) }, UE 2: { (1-4, 2-5), (5-3, 6-5), (7-4, 8-4), (3-4, 4-3) }, UE 3: { (5-3, 6-5), (1-3, 2-5), (3-4), (7-4, 8-3) }, UE 4: { (3-16, 4-15), (7-16, 8-16), (1-17, 2-15), (5-15, 6-16) }, the meaning of the respective UE feedback information is similar to that of sub embodiment 1.

The base station determines the final RF chain of each UE and the distribution scheme of the corresponding beam according to the feedback and the relevant information as follows: the RF chains used by the UE1 and the transmission beams corresponding to each RF chain are (1-22, 2-23, 3-22, 4-21), the RF chains used by the UE2 and the transmission beams corresponding to each RF chain are (5-3, 6-5), the RF chains used by the UE3 and the transmission beams corresponding to each RF chain are (5-3, 6-5), and the RF chains used by the UE4 and the transmission beams corresponding to each RF chain are (7-16, 8-16). The RF chains and beams used by the UE2 and the UE3 are the same, and the resource multiplexing effect is poor, so that the UE2 and the UE3 perform simultaneous scheduling, but allocate different frequency resources on the same ofdm symbol, so that direct interference between two users can be avoided. However, the UE2 and the UE3 have better spatial isolation from the preferred beams of the other two users, so the three groups of users can perform resource multiplexing, that is, 3 groups of users can use the same resource for downlink data transmission. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

Example 5

In downlink transmission, assuming that the base station has 8 RF chains, the maximum number of beams on each RF chain is 24, the base station notifies two parameters K and J to each user under the base station at a period T: wherein K represents the number of RF chains allocated to the UE by the base station during data transmission, and J represents the number of groups of RF chains (K RF chains are a group) that the UE needs to feed back. A certain time t0 is a time when the two parameters are periodically transmitted, and fig. 15 is a schematic diagram of beams and user distribution according to embodiment 5 of the present invention, as shown in fig. 15, when there are many users under the base station having data scheduling requests. Under the condition of complete beam training, the base station notifies the UE of the values of two parameters K and J at time t0 according to the relevant information. And the base station has previously determined a good grouping, when K is 1, the RF chains are divided into 8 groups, respectively { (1), (2), (3), (4), (5), (6), (7), (8) }, and when K is 2, the RF chains are divided into 4 groups: {(1,2),(3,4),(5,6),(7,8)}. When K is 4, the RF chains are divided into 2 groups: { (1, 2, 3, 4), (5, 6, 7, 8) }, when K is 8, the RF chains are divided into 1 group { (1, 2, 3, 4, 5, 6, 7, 8) }. When the user feeds back, the feedback can be carried out only according to groups.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire channel conditions of all 8 RF chains and all 24 beams on each RF chain, and after each time of the beam training is finished, each UE performs feedback of the RF chain group and the preferred beams of each RF chain in the group according to K (the K value of each UE can be different) RF chains allocated to the UE, and feeds back information such as CQI, RI, PMI and the like corresponding to each RF chain group. And each UE feeds back the J RF chain groups and the optimal beams corresponding to the K RF chains in each RF chain group according to the throughput.

Because the number of users is large, the base station firstly determines and schedules the UE according to the feedback and the related information, then determines the RF chain finally allocated by each UE and the corresponding preferred wave beam, and in the allocation process, if the conditions allow, the time-frequency resource is multiplexed as much as possible to improve the resource utilization rate. The candidate RF chains for different users and the preferred beam on the RF chain, if the same, may be scheduled simultaneously, but using different frequency resources. When the number of users is large, different users can be scheduled at different moments in order to take fairness among the users into account.

Example 6

In downlink transmission, assuming that the base station has 8 RF chains in total, the maximum number of transmission beams on each RF chain is 24, and the base station notifies each user under the base station of a parameter M at a period T^subOr two parameters K and M^subWhere K denotes the number of RF chains assigned to the UE by the base station during data transmission, M^subIndicating the actual number of beams per RF chain of the base station during this beam training. A certain time t0 is a time at which the two parameters are periodically transmitted, fig. 16 is a schematic diagram of beam and user distribution according to embodiment 6 of the present invention, as shown in fig. 16, only 2 users under the base station have data scheduling requirements, which are UE1 and UE2, respectively. In the case of simplified beam training, the base station informs UE1 and UE2 of only one parameter M at time t0 based on the relevant information^sub12. According to the formula 1, calculating the number K of RF chains allocated to the user during the next time T data transmission to be 4, wherein the beam indexes of the RF chains 1 to 4 determined by the base station are 1 to 12, the beam indexes of the RF chains 5 to 8 are 13 to 24, and the base station has previously determined the groups, when K is 4, the RF chains are divided into 2 groups, which are { (1, 2, 3, 4), (5, 6, 7, 8) }, and the user can only perform feedback according to the group when performing feedback.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire the channel conditions of all 8 RF chains and 12 beams actually used on each RF chain, and after each time of the beam training is finished, each UE performs feedback of the RF chain group and the preferred beams of each RF chain in the group according to the K value, and feeds back information such as CQI, RI, PMI and the like corresponding to each RF chain group. Assume that the content fed back by each UE is UE 1: { (5-22, 6-22, 7-21, 8-22) }, UE 2: { (1-5, 2-4, 3-4, 4-5) }, which takes UE1 as an example to illustrate the meaning of the feedback information, { (5-22, 6-22, 7-21, 8-22) } indicates that, for UE1, according to a predetermined packet, when the throughput is maximum, the index of the corresponding RF chain is 5, 6, 7, 8, the corresponding preferred beam is 22, 22, 21, 22, respectively, and the feedback information further includes information such as corresponding CQI, RI, PMI, and the like. The other UEs feedback information has similar meaning.

The base station determines, according to the feedback and the related information, that the final RF chain of each UE and the configuration scheme of the beams on the RF chain are UE 1: { (5-22, 6-22, 7-21, 8-22) }, UE 2: { (1-5, 2-4, 3-4, 4-5) }, i.e. consistent with the feedback of both UEs. Because the preferred beams of the two UEs are better in spatial isolation, when data is sent to 2 UEs at the same time, resource multiplexing can be performed, that is, 2 users can use the same time-frequency resource to send downlink data. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

When the next notification moment comes, the base station notifies each terminal of a parameter M according to the related information such as the number of users needing to be scheduled and the like^subOr two parameters K and M^sub。

Example 7

In downlink transmission, assuming that the base station has 8 RF chains in total, the maximum number of transmission beams on each RF chain is 24, and the base station notifies each user under the base station of a parameter M at a period T^subOr two parameters K and M^subWhere K denotes the number of RF chains assigned to the UE by the base station during data transmission, M^subIndicating the actual number of beams per RF chain of the base station during this beam training. A certain time t0 is a time at which the two parameters are periodically transmitted, fig. 17 is a schematic diagram of beam and user distribution according to embodiment 7 of the present invention, as shown in fig. 17, only 4 users under the base station have data scheduling requirements, which are UE1 to UE4, respectively. Under the condition of simplifying beam training, the base station informs the UE1-UE4 of two parameters K and M at the time t0 according to the relevant information^subFor all UE parameters M^subAre all the same and M^sub6, and K2 for UE1 and UE2, and K4 for UE3 and UE 4. In addition, the base station determines that the beam indexes of the RF chains 1 to 4 are 1 to 6, the beam indexes of the RF chains 5 to 6 are 13 to 18, and the beam indexes of the RF chains 7 to 8 are 19 to 24. And the base station has previously determined a good packet, when K is 4, the RF chains are divided into 2 groups, which are { (1, 2, 3, 4), (5, 6, 7, 8) }, respectively, and K is 2, the RF chains are divided into 4 groups, which are { (1, 2), (3, 4), (5, 6), (7, 8) }, respectively. When feeding back, only group-by-group feeding back is possible.

And then, performing a plurality of times of beam training within a period T, wherein the result of the beam training is that each UE can acquire the channel conditions of all 8 RF chains and 6 beams actually used on each RF chain, and after each time of the beam training is finished, each UE performs feedback of the RF chain group and the preferred beam of each RF chain in the group according to the K value, and feeds back information such as CQI, RI, PMI and the like corresponding to each RF chain group. Assume that the content fed back by each UE is UE 1: { (7-21, 8-22) }, UE 2: { (1-5, 2-4, 3-4, 4-5) }, UE 3: { (1-3, 2-4, 3-3, 4-4) }, UE4{ (5-16, 6-16) }. The meaning of the feedback information is described by taking UE1 as an example, where { (7-21, 8-22) } indicates that, for UE1, according to a predetermined packet, when the throughput is maximum, the indexes of the corresponding RF chains are 7 and 8, the corresponding preferred beams are 21 and 22, respectively, and the feedback information further includes information such as corresponding CQI, RI, PMI, and the like. The other UEs feedback information has similar meaning.

The base station determines, according to the feedback and the related information, that the final RF chain of each UE and the configuration scheme of the beams on the RF chain are UE 1: { (7-21, 8-22) }, UE2 does not schedule at this time, UE 3: { (1-3, 2-4, 3-3, 4-4) }, UE4{ (5-16, 6-16) }. Because the preferred beams of the three UEs are better in spatial isolation, when data is sent to 3 UEs at the same time, resource multiplexing can be performed, that is, 3 users can use the same time-frequency resource to send downlink data. Next, the base station notifies the UE of the relevant allocation scheduling information and performs downlink data transmission.

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

step S1: the first node determines the total number N of ports and the maximum number M of beams on each port, wherein each port corresponds to a radio frequency RF chain one by one, and each port also corresponds to a group of beams;

step S2: the first node sends the configured parameters K and/or J to the terminal through a high-level signaling or a physical layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents the number of the port groups to be fed back by the terminal;

step S3: in the process of beam training between a first node and a terminal, the first node receives a J value fed back by the terminal, a port index corresponding to each port group and a beam corresponding to each port group;

step S4: the first node determines a port index allocated to each terminal and a beam corresponding to each port, and transmits the determined port index and beam to each terminal through higher layer signaling or physical layer signaling.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for configuring ports and beams, comprising:

the first node determines the total number N of ports and the maximum number M of beams on each port, wherein each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams;

the first node sends a configured parameter K and/or a configured parameter J to a terminal through a high-level signaling or a physical-layer signaling, wherein K represents the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents that the first node divides N ports into J port groups so that the terminal feeds back beam training information according to the groups; the number of the port groups which need to be fed back by the terminal is J;

in the process of beam training between the first node and a terminal, the first node receives J port groups fed back by the terminal, a port index corresponding to each port group and a beam corresponding to each port;

the first node determines a port index allocated to each terminal and a beam corresponding to each port, and transmits the determined port index and beam to each terminal through high-layer signaling or physical layer signaling.

2. The method of claim 1, wherein the first node determines parameters K and J by information of at least one of:

the number of terminals accessed to the first node;

a location of a terminal accessed to the first node;

channel state information of a terminal accessed to the first node;

a demand level of data for access to a terminal of the first node.

3. The method of claim 1, wherein the values of K and J satisfy all of the following conditions:

the value of K and the value of J are integers which are respectively greater than or equal to 1 and less than or equal to the value of N;

the result of multiplying the value of K by the value of J is less than or equal to the value of N;

the result of comparing the value of N with the value of K is an integer;

and the value of K is greater than or equal to the result of comparing the value of N with the value of P, wherein P is the number of terminals with data requirements under the first node.

4. The method of claim 1, further comprising:

and when the first node sends the parameter K and the parameter J to the terminal, the first node configures the parameter K and the parameter J to each terminal independently.

5. The method of claim 4, wherein the first node individually configuring the parameter K and the parameter J to each terminal comprises:

the first node divides the N RF chains into N/K groups according to the value of K, wherein the RF chain index in each group which is divided is determined, and the terminal selects J groups from the groups which are divided for feedback according to the determined RF chain index.

6. The method of claim 1, further comprising:

the first node transmits one of the parameter K and the parameter J to a terminal, wherein the parameter not transmitted by the first node is determined by the terminal through the following formula: k × J ═ N.

7. The method of claim 1, wherein the beam training of the first node with the terminal comprises:

on different beams of the same port, the first node sends pilot frequency to the terminal in a time division mode to carry out training between different beams of different ports and each port; or the like, or, alternatively,

on different ports, the first node sends pilot frequency to the terminal in a frequency division or code division mode so as to carry out training among different beams of different ports.

8. A method for configuring ports and beams, comprising:

a terminal receives the total number N of ports and the maximum number M of beams on each port, wherein the total number N of the ports and the maximum number M of the beams are sent by a first node, each port corresponds to a Radio Frequency (RF) chain one by one, and each port corresponds to a group of beams;

the terminal receives two parameters K and a parameter J which are sent by the first node through physical layer signaling or high layer signaling, wherein K represents the number of ports which are allocated to the terminal by the first node during data transmission, K ports form a port group, and J represents that the first node divides N ports into J port groups so that the terminal feeds back beam training information according to the groups; the number of the port groups which need to be fed back by the terminal is J;

the terminal feeds back J port groups, port indexes corresponding to each port group, beams corresponding to each port and channel state information to the first node according to the result of beam training of the first node and the terminal;

and the terminal receives the configuration information of the port and the beam sent by the first node through physical layer signaling or high layer signaling.

9. The method of claim 8, wherein the terminal feeds back J port groups to the first node according to the result of beam training performed by the first node and the terminal, a port index corresponding to each port group, a beam corresponding to each port, and channel state information, and comprises:

the terminal distributes the throughput achieved when the terminal transmits data according to the K ports, and feeds back J groups and beams corresponding to each port in each group together according to the K ports as one group;

the feedback content of the first group comprises K port indexes corresponding to the maximum throughput of the terminal and beams on each port, the feedback content of the second group comprises K port indexes corresponding to the second maximum throughput and beams on each port, or the feedback content of the second group comprises K port indexes corresponding to the maximum throughput of the terminal except the first K ports and beams on each port; by analogy, the J-th group feedback content includes K port indexes corresponding to the J-th group with the largest throughput and a beam on each port, or the J-th group feedback content includes K port indexes corresponding to the J-1 group with the largest throughput except the ports of the terminal and a beam on each port.

10. The method of claim 8, wherein the channel state information comprises at least one of: channel Quality Indication (CQI) information, P codebook index (MI) information and Rank Indication (RI) information corresponding to each port group in the J port groups.

11. A method for configuring ports and beams, comprising:

the first node determines the total number N of ports and the maximum number M of beams on each port;

the first node sends the terminal parameter M through physical layer signaling or high layer signaling^subOr, the parameter K and the parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the first node divides the N ports into J port groups so that the terminal feeds back beam training information according to the groups, and each port group comprises K ports; and the terminal needs feedbackThe number of port groups is J;

the first node determines a beam index of each port during beam training and performs beam training with a terminal;

and the first node receives J port groups fed back by the terminal, K port indexes of each port group and beams corresponding to each port, and sends the ports and the beams to the terminal through physical layer signaling or high layer signaling.

12. The method of claim 11, wherein the first node determines parameters K and M by conditioning at least one of^sub：

The number of terminals accessed to the first node;

a location of a terminal accessed to the first node;

channel state information of a terminal accessed to the first node;

a demand level of data for a user accessing the first node;

a maximum number of beams per port of the first node.

13. The method of claim 11,

informing the terminal parameter M at the first node by physical layer signaling or higher layer signaling^subThe K parameter is determined by the following formula:

14. The method of claim 11,

in the process of carrying out beam training, on different beams of the same port, the first node sends pilot frequency in a time division mode to carry out training of different ports and different beams of each port;

in the process of beam training, the first node transmits pilot frequency in a frequency division or code division manner on different ports to perform training between different beams of different ports.

15. The method of claim 11, wherein the first node predetermines a set of packets for a port.

16. A method for configuring ports and beams, comprising:

the terminal receives the parameter M sent by the first node through the physical layer signaling or the high layer signaling^subOr, parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the terminal feeds back beam training information according to groups, and the number of the fed back port groups is J; j denotes that the first node divides the N ports into J port groups;

the terminal sends K port indexes and beams corresponding to each port to the first node according to the result of beam training of the terminal and the first node;

the terminal sends channel state information to the first node;

and the terminal receives the configuration information of the port and the beam which are distributed by the first node through physical layer signaling or high layer signaling.

17. The method of claim 16, wherein the terminal feeds back, to the first node, K port indexes and beams on each port corresponding to the maximum throughput according to throughputs achieved when the K ports are allocated to the terminal for data transmission.

18. The method of claim 16, wherein the channel state information comprises at least one of: channel Quality Indication (CQI) information, P codebook index (MI) information and Rank Indication (RI) information corresponding to each port group in the J port groups.

19. A port and beam configuration device applied to a first node side includes:

a first determining module, configured to determine a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain one to one, and each port corresponds to a group of beams;

a sending module, configured to send a configured parameter K and/or a configured parameter J to a terminal through a high layer signaling or a physical layer signaling, where K denotes the number of ports allocated to the terminal by the first node during data transmission, K ports form a port group, and J denotes that the first node divides N ports into J port groups, so that the terminal feeds back beam training information according to the group; the number of the port groups which need to be fed back by the terminal is J;

a first receiving module, configured to receive, during a beam training process performed by the first node and a terminal, J port groups fed back by the terminal, a port index corresponding to each port group, and a beam corresponding to each port;

and the configuration module is used for determining the port index allocated to each terminal and the beam corresponding to each port, and sending the determined port index and the beam to each terminal through high-layer signaling or physical layer signaling.

20. A port and beam configuration device applied to a terminal side, comprising:

a second receiving module, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams;

a third receiving module, configured to receive a parameter K and a parameter J that are sent by the first node through a physical layer signaling or a higher layer signaling, where K denotes a number of ports allocated to a terminal by the first node during data transmission, K ports form a port group, and J denotes that the first node divides N ports into J port groups, so that the terminal feeds back beam training information according to the group; the number of the port groups which need to be fed back by the terminal is J;

a feedback module, configured to feed back J port groups, a port index corresponding to each port group, a beam corresponding to each port, and channel state information to the first node according to a result of beam training performed by the first node and the terminal;

a fourth receiving module, configured to receive configuration information of a port and a beam sent by the first node through a physical layer signaling or a higher layer signaling.

21. A port and beam configuration device applied to a first node side includes:

a second determining module, configured to determine a total number N of ports and a maximum number M of beams on each port;

a second sending module for sending the terminal parameter M through the physical layer signaling or the high layer signaling^subOr, parameters K and M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training; the N ports comprise J port groups, so that the terminal feeds back beam training information according to groups, and each port group comprises K ports; the number of the port groups which need to be fed back by the terminal is J;

the third determining module is used for determining the beam index of each port during beam training and performing beam training with the terminal;

and a fifth receiving module, configured to receive J port groups fed back by the terminal, K port indexes of each port group, and a beam corresponding to each port, and send the port and the beam to the terminal through a physical layer signaling or a high layer signaling.

22. A port and beam configuration device applied to a terminal side, comprising:

a sixth receiving module, configured to receive a total number N of ports and a maximum number M of beams on each port, where each port corresponds to a radio frequency RF chain, and each port corresponds to a group of beams;

a seventh receiving module, configured to receive the parameter M sent by the first node through the physical layer signaling or the higher layer signaling^subOr, the parameter K and the parameter M^subWherein, K represents the port number allocated to the UE by the base station during data transmission, M^subRepresenting the number of beams on each port of the base station during beam training;

a third sending module, configured to send K port indexes and a beam corresponding to each port to the first node according to a result of beam training performed by the terminal and the first node; the terminal feeds back beam training information according to groups, and the number of the fed back port groups is J; j denotes that the first node divides the N ports into J port groups;

a fourth sending module, configured to send channel state information to the first node;

an eighth receiving module, configured to receive configuration information of the port and the beam that are allocated by the first node through physical layer signaling or high layer signaling.