CN109600156B

CN109600156B - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN109600156B
Application number: CN201710923591.3A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2020-10-02
Anticipated expiration: 2037-09-30
Also published as: CN109600156A

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. The user equipment transmits N reference signals, receives first information, receives second information, and then transmits a first wireless signal in a first time-frequency resource. Wherein the N reference signals are respectively transmitted by N antenna ports; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports. The method reduces the signaling overhead of the base station indicating the first antenna port group.

Description

Method and device used in user equipment and base station for wireless communication

Technical Field

The present application relates to a method and an apparatus for transmitting a radio signal in a wireless communication system, and more particularly, to a method and an apparatus for transmitting a radio signal in a wireless communication system supporting a cellular network.

Background

In a conventional LTE (Long Term Evolution ) system, codebook-based precoding is a main technique for realizing uplink multi-antenna transmission. In NR (New Radio ) systems, it has been agreed that in addition to codebook-based precoding, non-codebook-based precoding is adopted as a main technique for uplink multi-antenna transmission. In non-codebook based precoding, a base station determines precoding of a PUSCH (Physical Uplink Shared Channel) by indicating one or more SRS (Sounding Reference Signal).

NR systems will support frequency selective (frequency selective) precoding in uplink transmission, which presents new challenges for non-codebook based precoding scheme design.

Disclosure of Invention

The inventor finds through research that in order to support frequency-selective precoding in uplink transmission, a base station needs to indicate one or more SRIs of each Sub-band (Sub-band), and how to reduce the related signaling overhead is a key problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

The application discloses a method in user equipment for wireless communication, which is characterized by comprising the following steps:

-transmitting N reference signals;

-receiving first information;

-receiving second information;

-transmitting a first wireless signal in a first time-frequency resource;

wherein the N reference signals are respectively transmitted by N antenna ports; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1.

As an embodiment, the essence of the above method is that each of the M antenna port groups corresponds to one or more of the N reference signals; a first antenna port group is used to determine transmit precoding for the first wireless signal; the first information and the second information may respectively correspond to wideband information and subband information, the first information and the second information may be respectively semi-statically configured and dynamically configured, and a configuration period of the first information may be greater than a configuration period of the second information. The method has the advantages that compared with the traditional scheme that more signaling overhead is needed for directly determining the first antenna port group from the M antenna port groups, the signaling overhead needed for determining the first antenna port group can be reduced through the secondary information indication of the first information and the second information.

According to an aspect of the present applicationThe method is characterized in that the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

As an embodiment, the above method is advantageous in that the first information represents an RI (Rank Indication) of the first radio signal.

According to an aspect of the application, the method is characterized in that at least two antenna port groups of the S antenna port groups include different numbers of antenna ports, and the first information indicates information related to mutually different numbers of antenna ports among the numbers of antenna ports included in the S antenna port groups, respectively.

As an embodiment, the above method is advantageous in that the first information represents a value range of the RI of the first wireless signal.

According to an aspect of the application, the method is characterized in that the first information includes S indexes, and the S indexes are respectively used for determining the S antenna port groups from the M antenna port groups.

As an embodiment, the above method is advantageous in that, if the number of antenna ports included in the S antenna port groups is the same, the first information also implicitly indicates the RI (rank indication) of the first wireless signal; if the number of the antenna ports included in at least two antenna port groups of the S antenna port groups is different, the first information also implicitly indicates the value range of the RI.

According to one aspect of the application, the method described above is characterized by comprising:

-receiving third information;

wherein the third information is used to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal.

-receiving T configuration information, said T being a positive integer;

-transmitting T radio signals in T time-frequency resources, respectively;

wherein the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

As an embodiment, the essence of the above method is that the PUSCH includes a first wireless signal and T wireless signals, the first time-frequency resource and T time-frequency resources correspond to T +1 subbands of the PUSCH, the first information corresponds to wideband information, and the second information and T configuration information correspond to T +1 subband information, respectively. The method has the advantages that compared with the traditional scheme, more signaling overhead is needed for determining one antenna port group from M antenna port groups for each subband, and the signaling overhead needed for determining the first antenna port group and the T second antenna port groups can be reduced through the secondary information indication of the first information and the { second information and the T configuration information }.

According to an aspect of the application, the method is characterized in that the third information is further used for determining the T time-frequency resources or at least the T time-frequency resources of the T radio signals.

According to an aspect of the present application, the method is characterized in that the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

The application discloses a method in a base station device for wireless communication, which is characterized by comprising the following steps:

-receiving N reference signals;

-transmitting the first information;

-transmitting the second information;

-receiving a first wireless signal in a first time-frequency resource;

According to an aspect of the application, the method is characterized in that the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

-transmitting the third information;

-transmitting T configuration information, said T being a positive integer;

-receiving T radio signals in T time-frequency resources, respectively;

The application discloses user equipment for wireless communication, characterized by, includes:

-a first transmitter module for transmitting N reference signals, a first wireless signal being transmitted in a first time frequency resource;

-a first receiver module receiving first information and receiving second information;

As an embodiment, the user equipment is characterized in that the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

As an embodiment, the user equipment is characterized in that at least two antenna port groups of the S antenna port groups include different numbers of antenna ports, and the first information indicates information related to different numbers of antenna ports among the numbers of antenna ports included in the S antenna port groups, respectively.

As an embodiment, the user equipment is characterized in that the first information includes S indexes, and the S indexes are respectively used for determining the S antenna port groups from the M antenna port groups.

As an embodiment, the ue is characterized in that the first receiver module further receives third information; the third information is used to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal.

As an embodiment, the ue is characterized in that the first receiver module further receives T pieces of configuration information, where T is a positive integer; the first transmitter module further transmits T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

As an embodiment, the user equipment is characterized in that the third information is further used for determining the T time-frequency resources or at least the T time-frequency resources in the T radio signals.

As an embodiment, the above user equipment is characterized in that, the number of antenna ports different from each other in the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

The application discloses a base station equipment for wireless communication, characterized by, includes:

-a second receiver module receiving N reference signals, receiving a first wireless signal in a first time frequency resource;

-a second transmitter module for transmitting the first information and for transmitting the second information;

As an embodiment, the base station device is characterized in that the number of antenna ports included in each of the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

As an embodiment, the base station device is characterized in that the numbers of antenna ports included in at least two antenna port groups of the S antenna port groups are different, and the first information indicates information related to antenna port numbers different from each other among the numbers of antenna ports included in the S antenna port groups, respectively.

As an embodiment, the base station device is characterized in that the first information includes S indexes, and the S indexes are respectively used for determining the S antenna port groups from the M antenna port groups.

As an embodiment, the base station device is characterized in that the second transmitter module further transmits third information; the third information is used to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal.

As an embodiment, the base station device is characterized in that the second transmitter module further transmits T pieces of configuration information, where T is a positive integer; the second receiver module further receives T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

As an embodiment, the base station device is characterized in that the third information is further used for determining the T time-frequency resources or at least the T time-frequency resources in the T radio signals.

As an embodiment, the base station apparatus is characterized in that, the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

As an example, compared with the prior art, the present application has the following main technical advantages:

when non-frequency selective precoding is adopted, the base station determines the broadband precoding of the PUSCH through two-stage information indication of the first information and the second information, so that the required signaling overhead can be reduced. Wherein the first information is semi-static information and is used to determine a subset from the set of candidate precodes, and the second information is dynamic information and is used to determine a precoding from the subset as a wideband precoding.

When frequency selective precoding is employed, the base station determines precoding on T +1 subbands of PUSCH by two-level information indication of the first information and { second information, T configuration information }, which may reduce required signaling overhead. Where the first information is wideband information and is used to determine a subset of the candidate precoding set, { second information, T configuration information } is subband information and is used to determine precoding on T +1 subbands from the subset, respectively.

Drawings

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

FIG. 1 shows a flow diagram of N reference signals, first information, second information, and first wireless signals according to one embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

FIG. 5 shows a flow diagram of wireless transmission according to one embodiment of the present application;

fig. 6 is a diagram illustrating a relationship of first information and S antenna port groups, respectively, according to an embodiment of the present application;

fig. 7 is a diagram illustrating a relationship of first information and S antenna port groups, respectively, according to another embodiment of the present application;

fig. 8 is a diagram illustrating a relationship of first information and S antenna port groups, respectively, according to another embodiment of the present application;

fig. 9 shows a schematic diagram of resource mapping of T time-frequency resources and first time-frequency resources, T wireless signals and first wireless signals in a time-frequency domain, respectively, according to an embodiment of the present application;

fig. 10 shows a schematic diagram of M antenna port groups, respectively, according to an embodiment of the present application;

fig. 11 shows a schematic diagram of determining S antenna port groups from M antenna port groups, respectively, according to an embodiment of the present application;

fig. 12 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 13 shows a block diagram of a processing device used in a base station apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of N reference signals, first information, second information and a first wireless signal, as shown in fig. 1.

In embodiment 1, the ue in this application transmits N reference signals, receives first information, receives second information, and then transmits a first radio signal in a first time/frequency resource. Wherein the N reference signals are respectively transmitted by N antenna ports; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1.

As an embodiment, any one of the M antenna port groups is composed of antenna ports different from each other.

As an embodiment, the N reference signals correspond to N SRSs, and the N SRSs are all transmitted by one antenna port.

As one embodiment, the first wireless Signal is at least one of a DMRS (Demodulation Reference Signal) or data.

As an embodiment, at least two antenna port groups of the M antenna port groups include different numbers of antenna ports.

As an embodiment, the first information explicitly indicates S antenna port groups of the M antenna port groups.

As an embodiment, the first information implicitly indicates S antenna port groups of the M antenna port groups.

As an embodiment, the first information is carried by higher layer signaling.

As an embodiment, the first information is carried by RRC signaling.

As an embodiment, the first information is all or a part of an IE in one RRC signaling.

As an embodiment, the first information is carried by mac ce signaling.

As an embodiment, the first Information is transmitted in a SIB (System Information Block).

As one embodiment, the first information is semi-statically configured.

As one embodiment, the first information is dynamically configured.

As an embodiment, the first information is carried by physical layer signaling.

As an embodiment, the first information is carried by DCI (Downlink control information) signaling.

As an embodiment, the first information is a Field (Field) in a DCI signaling, and the Field includes a positive integer number of bits.

As an embodiment, the first information is carried by a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As an embodiment, the first information is carried by a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first information is carried by a short PDCCH (short PDCCH).

As an embodiment, the first information is carried by a NR-PDCCH (New Radio PDCCH).

As an embodiment, the first information is carried by NB-PDCCH (NarrowBand PDCCH).

As an embodiment, the second information explicitly indicates the first antenna port group.

As an embodiment, the second information implicitly indicates the first antenna port group.

As one embodiment, the second information is dynamically configured.

As an embodiment, the second information is carried by physical layer signaling.

As an embodiment, the second information is carried by DCI signaling.

As an embodiment, the second information is a field in one DCI signaling, and the field includes a positive integer number of bits.

As an embodiment, the second information is carried by a downlink physical layer control channel.

As an embodiment, the second information is carried by a PDCCH.

As an embodiment, the second information is carried by sPDCCH.

As an embodiment, the second information is carried by NR-PDCCH.

As an embodiment, the second information is carried by NB-PDCCH.

As an embodiment, a configuration period of the first information is greater than a configuration period of the second information.

As an embodiment, the first information and the second information are carried by the same DCI signaling.

As an embodiment, the first information and the second information are a first field and a second field of the same DCI signaling.

As an embodiment, the first time-frequency resource is all time-frequency resources occupied by uplink data transmission.

As an embodiment, the first time-frequency resource is a time-frequency resource of a subband occupied by uplink data transmission.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency-division multiplexing) symbol.

As an embodiment, the multicarrier symbol is an SC-FDMA (Single-Carrier Frequency-Division Multiple Access) symbol.

As an embodiment, the Multi-Carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

As one embodiment, the number of antenna ports included in the antenna port group for transmitting the first wireless signal is a positive integer not greater than N.

As an embodiment, the number of antenna ports included in the antenna port group for transmitting the first wireless signal is the same as the number of antenna ports included in the first antenna port group.

As an embodiment, the RI of the first wireless signal and the number of antenna ports included in the first antenna port group are the same.

As an embodiment, the antenna port group for transmitting the first wireless signal and the first antenna port group are related to: the first antenna port group is used to determine a transmit spatial filtering (spatial filtering) corresponding to the antenna port group used to transmit the first wireless signal.

As an embodiment, the antenna port group for transmitting the first wireless signal and the first antenna port group are related to: all antenna ports in the first antenna port group are respectively the same as the transmission beamforming vectors on all antenna ports in the antenna port group for transmitting the first wireless signal.

As an embodiment, the antenna port group for transmitting the first wireless signal and the first antenna port group are related to: all antenna ports in the first antenna port group are respectively the same as precoding on all antenna ports in the antenna port group for transmitting the first wireless signal.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced), and future 5G systems. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS terrestrial radio access network-new radio) 202, 5G-CN (5G-Core network, 5G Core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services. The E-UTRAN-NR includes NR node B (gNB)203 and other gNBs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an X2 interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1 interface. The 5G-CN/EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. The MME211 is a control node that handles signaling between the UE201 and the 5G-CN/EPC 210. In general, the MME211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP multimedia subsystem), and a PS streaming service (PSs).

As an embodiment, the UE201 corresponds to the user equipment in the present application.

As an embodiment, the gNB203 corresponds to the base station in this application.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of radio protocol architecture for the user plane and the control plane, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the gNB in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (media access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As an example, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As an example, the radio protocol architecture in fig. 3 is applicable to the base station in this application.

As an embodiment, the first information in this application is generated in the RRC sublayer 306.

As an embodiment, the first information in this application is generated in the MAC sublayer 302.

As an embodiment, the first information in this application is generated in the PHY 301.

As an embodiment, the second information in this application is generated in the PHY 301.

As an example, the N reference signals in this application are generated in the PHY 301.

As an example, the first wireless signal in this application is generated in the PHY 301.

As an embodiment, the third information in the present application is generated in the PHY 301.

As an embodiment, the T pieces of configuration information in this application are generated in the PHY 301.

As an example, the T wireless signals in this application are generated in the PHY 301.

Example 4

Embodiment 4 illustrates a schematic diagram of an evolved node and a UE, as shown in fig. 4.

Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network. In the DL (Downlink), upper layer packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE450 based on various priority metrics. Controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE 450. The transmit processor 416 implements various signal processing functions for the L1 layer (i.e., the physical layer). The signal processing functions include decoding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and mapping to signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols are then split into parallel streams. Each stream is then mapped to a multicarrier subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time-domain multicarrier symbol stream. The multi-carrier stream is spatially pre-decoded to produce a plurality of spatial streams. Each spatial stream is then provided via a transmitter 418 to a different antenna 420. Each transmitter 418 modulates an RF carrier with a respective spatial stream for transmission. At the UE450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the information to a receive processor 456. The receive processor 456 performs various signal processing functions at the L1 level. The receive processor 456 performs spatial processing on the information to recover any spatial streams destined for the UE 450. If multiple spatial streams are destined for UE450, they may be combined into a single multicarrier symbol stream by receive processor 456. A receive processor 456 then converts the multicarrier symbol stream from the time-domain to the frequency-domain using a Fast Fourier Transform (FFT). The frequency domain signal comprises a separate multicarrier symbol stream for each subcarrier of the multicarrier signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the gNB410, and generating soft decisions. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the gNB410 on the physical channel. The data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the L2 layer. The controller/processor can be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations. In the UL (Uplink), a data source 467 is used to provide the upper layer packet to the controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the functionality described in connection with the DL transmission of the gNB410, the controller/processor 459 implements the L2 layer for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the gNB 410. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410. An appropriate coding and modulation scheme is selected and spatial processing is facilitated by a transmit processor 468. The spatial streams generated by the transmit processor 468 are provided to different antennas 452 via separate transmitters 454. Each transmitter 454 modulates an RF carrier with a respective spatial stream for transmission. UL transmissions are processed at the gNB410 in a manner similar to that described in connection with receiver functionality at the UE 450. Each receiver 418 receives a signal through its respective antenna 420. Each receiver 418 recovers information modulated onto an RF carrier and provides the information to a receive processor 470. Receive processor 470 may implement the L1 layer. The controller/processor 475 implements the L2 layer. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the UL, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the UE450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As an embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving the first information in the application, receiving the second information in the application, receiving the third information in the application, receiving the T configuration information in the application, sending the N reference signals in the application, sending the first radio signal in the application in the first time-frequency resource in the application, and sending the T radio signals in the application in the T time-frequency resources in the application, respectively.

As an embodiment, the gNB410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As an embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the method includes the steps of sending first information in the application, sending second information in the application, sending third information in the application, sending T pieces of configuration information in the application, receiving N reference signals in the application, receiving first wireless signals in the application in first time-frequency resources in the application, and respectively receiving T wireless signals in the application in the T time-frequency resources in the application.

As an embodiment, the UE450 corresponds to the user equipment in the present application.

As an embodiment, the gNB410 corresponds to the base station in this application.

For one embodiment, at least two of the transmitter 418 (including antenna 420), the transmit processor 416 and the controller/processor 475 were used to transmit the first information in this application, and at least two of the receiver 454 (including antenna 452), the receive processor 456 and the controller/processor 459 were used to receive the first information in this application.

For one embodiment, at least two of the transmitter 418 (including antenna 420), the transmit processor 416 and the controller/processor 475 were used to transmit the second information in this application, and at least two of the receiver 454 (including antenna 452), the receive processor 456 and the controller/processor 459 were used to receive the second information in this application.

For one embodiment, at least two of the transmitter 418 (including antenna 420), the transmit processor 416 and the controller/processor 475 are used to transmit the third information herein, and at least two of the receiver 454 (including antenna 452), the receive processor 456 and the controller/processor 459 are used to receive the third information herein.

For one embodiment, at least two of the transmitter 418 (including antenna 420), the transmit processor 416 and the controller/processor 475 are configured to transmit the T configuration information in this application, and at least two of the receiver 454 (including antenna 452), the receive processor 456 and the controller/processor 459 are configured to receive the T configuration information in this application.

For one embodiment, the transmitter 454 (including antenna 452), at least two of the transmit processor 468 and the controller/processor 459 were used to transmit the N reference signals in this application, and the receiver 418 (including antenna 420), at least two of the receive processor 470 and the controller/processor 475 were used to receive the N reference signals in this application.

For one embodiment, at least two of the transmitter 454 (including antenna 452), the transmit processor 468 and the controller/processor 459 may be configured to transmit the first wireless signal in the first time/frequency resource, and the receiver 418 (including antenna 420), the receive processor 470 and the controller/processor 475 may be configured to receive the first wireless signal in the first time/frequency resource.

As an example, at least two of the transmitter 454 (including the antenna 452), the transmit processor 468, and the controller/processor 459 may be configured to transmit the T wireless signals in the present application in the T time-frequency resources respectively, and at least two of the receiver 418 (including the antenna 420), the receive processor 470, and the controller/processor 475 may be configured to receive the T wireless signals in the present application in the T time-frequency resources respectively.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintenance base station for user equipment U2. In fig. 5, blocks F1 and F2 are optional.

For N1, N reference signals are received in step S10; transmitting the first information in step S11; transmitting the second information in step S12; transmitting T pieces of configuration information in step S13; transmitting third information in step S14; receiving a first wireless signal in a first time-frequency resource in step S15; in step S16, T wireless signals are received in T time-frequency resources, respectively.

For U2, N reference signals are transmitted in step S20; receiving the first information in step S21; receiving second information in step S22; receiving T pieces of configuration information in step S23; receiving third information in step S24; transmitting a first wireless signal in a first time-frequency resource in step S25; in step S26, T wireless signals are transmitted in T time-frequency resources, respectively.

In embodiment 5, the N reference signals are transmitted by N antenna ports, respectively; the first information is used by the U2 to determine S antenna port groups from M antenna port groups, the second information is used by the U2 to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1. The third information is used by the U2 to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal. The T pieces of configuration information are respectively used by the U2 to determine T second antenna port groups, where any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

As an embodiment, the S antenna port groups are S mutually different antenna port groups of the M antenna port groups.

As an embodiment, the first information is carried by higher layer signaling.

As an embodiment, the first information is carried by RRC signaling.

As an embodiment, the first information is carried by mac ce signaling.

As one embodiment, the first information is semi-statically configured.

As one embodiment, the first information is dynamically configured.

As an embodiment, the first information is carried by physical layer signaling.

As one embodiment, the second information is dynamically configured.

As an embodiment, the second information is carried by DCI signaling.

As an embodiment, the second information is carried by a PDCCH.

As an embodiment, the second information is carried by sPDCCH.

As an embodiment, the second information is carried by NR-PDCCH.

As an embodiment, the second information is carried by NB-PDCCH.

As an embodiment, the first time-frequency resource is composed of K consecutive subcarriers in a frequency domain and L consecutive multicarrier symbols in a time domain, where K is a positive integer and L is a positive integer.

As an embodiment, the third information includes at least one of the first time/frequency resource and { a group of antenna ports for transmitting the first wireless signal, an RI of the first wireless signal }.

As an embodiment, the third information explicitly indicates the first time-frequency resource or at least the first time-frequency resource in the first wireless signal.

As an embodiment, the third information implicitly indicates the first time-frequency resource or at least the first time-frequency resource in the first wireless signal.

As one embodiment, the third information is dynamically configured.

As an embodiment, the third information is carried by physical layer signaling.

As an embodiment, the third information is carried by DCI signaling.

As an embodiment, the third information is a field in one DCI signaling, and the field includes a positive integer number of bits.

As an embodiment, the third information is carried by a downlink physical layer control channel.

As an embodiment, the third information is carried by a PDCCH.

As an embodiment, the third information is carried by the sPDCCH.

As an embodiment, the third information is carried by NR-PDCCH.

As an embodiment, the third information is carried by NB-PDCCH.

As an embodiment, the second information and the third information are carried by the same DCI signaling.

As an embodiment, the second information and the third information are a first field and a second field of the same DCI signaling.

As an embodiment, the first information, the second information, and the third information are carried by a same DCI signaling.

As an embodiment, the first information, the second information, and the third information are a first field, a second field, and a third field of a same DCI signaling.

As an embodiment, the T pieces of configuration information respectively explicitly indicate the T second antenna port groups.

As an embodiment, the T pieces of configuration information implicitly indicate T second antenna port groups, respectively.

As an embodiment, any one of the T pieces of configuration information is dynamically configured.

As an embodiment, any one of the T pieces of configuration information is carried by physical layer signaling.

As an embodiment, any one of the T pieces of configuration information is carried by DCI signaling.

As an embodiment, the T pieces of configuration information are T fields in one DCI signaling, respectively.

As an embodiment, any one of the T pieces of configuration information is carried by a downlink physical layer control channel.

As an embodiment, any one of the T pieces of configuration information is carried by a PDCCH.

As an embodiment, any one of the T pieces of configuration information is carried by the sPDCCH.

As an embodiment, any one of the T pieces of configuration information is carried by the NR-PDCCH.

As an embodiment, any one of the T pieces of configuration information is carried by NB-PDCCH.

As an embodiment, the T pieces of configuration information and the second information are carried by the same DCI signaling.

As an embodiment, the T pieces of configuration information and the second information are (T +1) fields in the same DCI signaling, respectively.

As an embodiment, the T antenna port groups respectively used for transmitting the T wireless signals are the same.

As an embodiment, the T antenna port groups respectively used for transmitting the T wireless signals all include the same number of antenna ports.

As an embodiment, the T second antenna port groups all include the same number of antenna ports.

As an embodiment, the number of antenna ports included in any one of the T antenna port groups respectively used for transmitting the T wireless signals is the same as the number of antenna ports included in any one of the T second antenna port groups.

As an embodiment, the RI of the T radio signals are all the same.

As an embodiment, the RI of any one of the T radio signals is the same as the number of antenna ports included in any one of the T second antenna port groups.

As an embodiment, the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups, that is: the T second antenna port groups are respectively used to determine transmit spatial filtering (spatial filtering) corresponding to the T antenna port groups respectively used to transmit the T wireless signals.

As an embodiment, the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups, that is: the T second antenna port groups are respectively the same as the transmit beamforming vectors on the T antenna port groups respectively used for transmitting the T wireless signals.

As an embodiment, the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups, that is: the precoding on the T second antenna port groups is the same as the precoding on the T antenna port groups used for transmitting the T wireless signals, respectively.

As an embodiment, the T second antenna port groups and the first antenna port group include the same number of antenna ports.

Example 6

Embodiment 6 illustrates a schematic diagram of the relationship between one piece of first information and S antenna port groups, as shown in fig. 6.

In embodiment 6, the number of antenna ports included in the S antenna port groups in the present application is all Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

For one embodiment, the first information indicates the Q₁。

As an example of the way in which the device may be used,the number of the antenna ports included in the M antenna port groups of the S antenna port groups is Q₁All antenna port groups.

As an embodiment, the number of antenna ports included in the antenna port group for transmitting the first wireless signal is equal to the Q₁。

For one embodiment, the RI of the first wireless signal is equal to the Q₁。

Example 7

Embodiment 7 illustrates another schematic diagram of the relationship between the first information and the S antenna port groups, as shown in fig. 7.

In embodiment 7, in the present application, the numbers of antenna ports included in at least two antenna port groups of the S antenna port groups are different, and the first information indicates information related to antenna port numbers different from each other among the numbers of antenna ports included in the S antenna port groups, respectively.

As an embodiment, the first information indicates mutually different numbers of antenna ports among numbers of antenna ports respectively included in the S antenna port groups.

As an embodiment, the first information indicates Z values, one of the Z values is the number of antenna ports included in one or more antenna port groups of the S antenna port groups, and the number of antenna ports included in any one antenna port group of the S antenna port groups is equal to one of the Z values; z is a positive integer greater than 1 and not greater than N, and the Z values are all positive integers less than or equal to N.

As an embodiment, a value range of the number of antenna ports included in the antenna port group for transmitting the first wireless signal is equal to the number of antenna ports different from each other in the number of antenna ports respectively included in the S antenna port groups.

As an embodiment, a value range of the RI of the first wireless signal is equal to mutually different antenna port numbers in the antenna port numbers respectively included in the S antenna port groups.

Example 8

Embodiment 8 illustrates another schematic diagram of the relationship between the first information and the S antenna port groups, as shown in fig. 8.

In embodiment 8, the first information in this application includes S indexes, and the S indexes are respectively used to determine the S antenna port groups from the M antenna port groups.

As an embodiment, the S indexes are indexes of the S antenna port groups, respectively.

As an embodiment, the S indexes are indexes of the S antenna port groups in the M antenna port groups, respectively.

As one embodiment, the S indices are S different values of {1,2, …, M }.

As one embodiment, the S indices are S different values of {0,1, …, M-1 }.

As an embodiment, the first information is provided by Slog₂(M) bits.

As an embodiment, the number of antenna ports included in the S antenna port groups is the same.

As an embodiment, at least two antenna port groups of the S antenna port groups include different numbers of antenna ports.

As an embodiment, the number of antenna ports included in the S antenna port groups is the same and is equal to the number of antenna ports included in the antenna port group for transmitting the first wireless signal.

As an embodiment, the numbers of the antenna ports included in at least two of the S antenna port groups are different, and the range of values of the numbers of the antenna ports included in the antenna port group for transmitting the first wireless signal is equal to the numbers of different antenna ports in the numbers of the antenna ports included in the S antenna port groups, respectively.

As an embodiment, the number of antenna ports included in the S antenna port groups is the same and equal to the RI of the first wireless signal.

As an embodiment, the numbers of the antenna ports included in at least two of the S antenna port groups are different, and the value range of the RI of the first wireless signal is equal to the numbers of the antenna ports different from each other in the numbers of the antenna ports included in the S antenna port groups, respectively.

Example 9

Embodiment 9 illustrates a schematic diagram of resource mapping of T time-frequency resources and a first time-frequency resource, and T wireless signals and a first wireless signal in a time-frequency domain, as shown in fig. 9.

In embodiment 9, any two time frequency resources of the T time frequency resources in the application are orthogonal in a frequency domain, any one of the T time frequency resources is orthogonal to the first time frequency resource in the frequency domain, the first wireless signal is transmitted in the first time frequency resource, and the T wireless signals are respectively transmitted in the T time frequency resources.

As an embodiment, the T time-frequency resources and the first time-frequency resource correspond to T +1 subbands of a PUSCH, respectively.

As an embodiment, the T time-frequency resources and the first time-frequency resource correspond to T +1 subbands for uplink data transmission, respectively.

As an embodiment, the j-th time frequency resource of the T time frequency resources consists of K in the frequency domain_iOne continuous subcarrier and L in time domain_iA number of consecutive multicarrier symbols, Ki being a positive integer, L_iIs a positive integer.

As an embodiment, the T time-frequency resources and the first time-frequency resource both include the same number of subcarriers.

As an embodiment, the number of subcarriers included in at least two of the T time-frequency resources and the first time-frequency resource is different.

As an embodiment, the T antenna port groups for transmitting the T wireless signals respectively and the antenna port group for transmitting the first wireless signal include the same number of antenna ports.

As an embodiment, the RI of the T radio signals and the first radio signal are the same.

As an embodiment, the T time-frequency resources and the first time-frequency resource both occupy the same time-domain resource.

As one embodiment, the first wireless signal and the T wireless signals are transmitted on T +1 subbands, respectively.

Example 10

Embodiment 10 illustrates a schematic diagram of a group of M antenna ports, as shown in fig. 10.

In embodiment 10, the mutually different antenna port numbers among the antenna port numbers included in the M antenna port groups in the present application include 1,2, …, P, where P is a positive integer not greater than N.

As an embodiment, said P is at least one of {1,2,3,4,5,6,7,8 }.

As an embodiment, said P is at least one of {2,3,4,5,6,7,8 }.

As an embodiment, the M antenna port groups are composed of all antenna port groups including antenna ports whose numbers are 1,2, …, P, respectively.

As an embodiment, the number of all antenna port groups including the number of antenna ports i is

Wherein i is 1,2, …, P; said M is equal to said

The above-mentioned

…, and the

To sum, i.e.

Example 11

Embodiment 11 illustrates a schematic diagram of determining S antenna port groups from M antenna port groups, as shown in fig. 11.

In embodiment 11, the S antenna port groups in the present application are S mutually different antenna port groups among the M antenna port groups.

Example 12

Embodiment 12 is a block diagram illustrating a processing apparatus used in a user equipment, as shown in fig. 12. In fig. 12, a processing means 1200 in a user equipment is mainly composed of a first receiver module 1201 and a first transmitter module 1202. The first receiver module 1201 includes at least two of the transmitter/receiver 454 (including the antenna 452), the receive processor 456, and the controller/processor 459 of fig. 4 of the present application. The first transmitter module 1202 includes at least two of the transmitter/receiver 454 (including the antenna 452), the transmit processor 468 and the controller/processor 459 of fig. 4 of the present application.

The first receiver module 1201: receiving first information; receiving second information; receiving third information; receiving T pieces of configuration information;

the first transmitter module 1202: transmitting N reference signals; transmitting a first wireless signal in a first time-frequency resource; and respectively transmitting T wireless signals in the T time-frequency resources.

In embodiment 12, the N reference signals are transmitted by N antenna ports, respectively; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1.

As an embodiment, the third information is used to determine the first time-frequency resource or at least the first time-frequency resource in the first wireless signal.

As an embodiment, the T pieces of configuration information are respectively used to determine T second antenna port groups, where any one antenna port group in the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

Example 13

Embodiment 13 is a block diagram illustrating a configuration of a processing device used in a base station apparatus, as shown in fig. 13. In fig. 13, a processing apparatus 1300 in a base station device is mainly composed of a second transmitter module 1301 and a second receiver module 1302. The second transmitter module 1301 includes at least two of the transmitter/receiver 418 (including the antenna 420), the transmit processor 416 and the controller/processor 475 of fig. 4 of the present application. The second receiver module 1302 includes at least two of the transmitter/receiver 418 (including the antenna 420), the receive processor 470 and the controller/processor 475 of fig. 4 of the present application.

Second transmitter module 1301: sending first information; sending the second information; sending third information; sending T pieces of configuration information;

the second receiver module 1302: receiving N reference signals; receiving a first wireless signal in a first time-frequency resource; t wireless signals are received in the T time frequency resources respectively.

In embodiment 13, the N reference signals are transmitted by N antenna ports, respectively; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1.

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

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

Claims

1. A method in a user equipment for wireless communication, comprising:

-transmitting N reference signals;

-receiving first information;

-receiving second information;

-transmitting a first wireless signal in a first time-frequency resource;

wherein the N reference signals are respectively transmitted by N antenna ports; the first information and the second information are carried by the same DCI signaling; the first information is used to determine S antenna port groups from the M antenna port groups, the second information is used to determine a first antenna port group, the first antenna port group being one of the S antenna port groups; any one of the M antenna port groups is composed of a positive integer number of antenna ports, and any one of the M antenna port groups is one of the N antenna ports; the number of antenna ports included in the S antenna port groups is the same and equal to the number of antenna ports included in the antenna port group for transmitting the first wireless signal; the set of antenna ports for transmitting the first wireless signal is associated with the first set of antenna ports; the S is a positive integer greater than 1 and less than the M, and the M and the N are each positive integers greater than 1.

2. The method of claim 1, wherein the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

3. The method of claim 1, wherein the first information comprises S indexes, and wherein the S indexes are respectively used for determining the S antenna port groups from the M antenna port groups.

4. A method according to any one of claims 1 to 3, comprising:

-receiving third information;

5. A method according to any one of claims 1 to 3, comprising:

-receiving T configuration information, said T being a positive integer;

-transmitting T radio signals in T time-frequency resources, respectively;

6. The method of claim 4, comprising:

-receiving T configuration information, said T being a positive integer;

-transmitting T radio signals in T time-frequency resources, respectively;

7. The method according to claim 6, characterized in that said third information is further used for determining said T time-frequency resources or at least said T time-frequency resources of said T radio signals.

8. The method according to any of claims 1 to 3, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

9. The method of claim 4, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

10. The method of claim 5, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

11. The method of claim 6, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

12. The method of claim 7, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

13. A method in a base station device for wireless communication, comprising:

-receiving N reference signals;

-transmitting the first information;

-transmitting the second information;

-receiving a first wireless signal in a first time-frequency resource;

14. The method of claim 13, wherein the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

15. The method of claim 13, wherein the first information comprises S indexes, and wherein the S indexes are respectively used for determining the S antenna port groups from the M antenna port groups.

16. The method according to any one of claims 13 to 15, comprising:

-transmitting the third information;

17. The method according to any one of claims 13 to 15, comprising:

-transmitting T configuration information, said T being a positive integer;

-receiving T radio signals in T time-frequency resources, respectively;

18. The method of claim 16, comprising:

-transmitting T configuration information, said T being a positive integer;

-receiving T radio signals in T time-frequency resources, respectively;

19. The method according to claim 18, wherein said third information is further used for determining said T time-frequency resources or at least said T time-frequency resources of said T radio signals.

20. The method according to any of claims 13 to 15, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

21. The method as claimed in claim 16, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

22. The method as claimed in claim 17, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

23. The method as claimed in claim 18, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

24. The method as claimed in claim 19, wherein the number of antenna ports different from each other among the number of antenna ports respectively included in the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

25. A user device for wireless communication, comprising:

26. The UE of claim 25, wherein the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

27. The UE of claim 25, wherein the first information comprises S indices, and wherein the S indices are respectively used for determining the S antenna port groups from the M antenna port groups.

28. The user equipment according to any of claims 25 to 27, wherein the first receiver module further receives third information; the third information is used to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal.

29. The user equipment according to any of claims 25 to 27, wherein the first receiver module further receives T configuration information, wherein T is a positive integer; the first transmitter module further transmits T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

30. The UE of claim 28, wherein the first receiver module further receives T configuration information, wherein T is a positive integer; the first transmitter module further transmits T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

31. The UE of claim 30, wherein the third information is further used to determine the T time-frequency resources or at least the T time-frequency resources of the T radio signals.

32. The UE of any one of claims 25 to 27, wherein the mutually different antenna port numbers of the antenna port numbers respectively included in the M antenna port groups include 1,2, …, P, and P is a positive integer not greater than N.

33. The UE of claim 28, wherein the different antenna port numbers of the antenna port numbers respectively included in the M antenna port groups include 1,2, …, P, and P is a positive integer not greater than N.

34. The UE of claim 29, wherein the different antenna port numbers of the antenna port numbers respectively included in the M antenna port groups include 1,2, …, P, and P is a positive integer not greater than N.

35. The UE of claim 30, wherein the different antenna port numbers of the antenna port numbers respectively included in the M antenna port groups include 1,2, …, P, and P is a positive integer not greater than N.

36. The UE of claim 31, wherein the different antenna port numbers of the antenna port numbers respectively included in the M antenna port groups include 1,2, …, P, and P is a positive integer not greater than N.

37. A base station apparatus for wireless communication, comprising:

38. The base station apparatus of claim 37, wherein the number of antenna ports included in the S antenna port groups is Q₁The first information indication and the Q₁Related information, said Q₁Is a positive integer less than or equal to said N.

39. The base station device of claim 37, wherein the first information comprises S indices, and wherein the S indices are respectively used for determining the S antenna port groups from the M antenna port groups.

40. The base station device of any of claims 37 to 39, wherein said second transmitter module further transmits third information; the third information is used to determine the first time frequency resource or at least the first time frequency resource in the first wireless signal.

41. The base station device according to any of claims 37 to 39, wherein said second transmitter module further transmits T configuration information, said T being a positive integer; the second receiver module further receives T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

42. The base station device of claim 40, wherein the second transmitter module further transmits T configuration information, wherein T is a positive integer; the second receiver module further receives T wireless signals in T time-frequency resources, respectively; the T pieces of configuration information are respectively used to determine T second antenna port groups, and any one of the T second antenna port groups is one of the S antenna port groups; the T antenna port groups respectively used for transmitting the T wireless signals are respectively related to the T second antenna port groups; any two time frequency resources in the T time frequency resources are orthogonal on a frequency domain, and any one time frequency resource in the T time frequency resources is orthogonal with the first time frequency resource on the frequency domain.

43. The base station device of claim 42, wherein the third information is further used for determining the T time-frequency resources or at least the T time-frequency resources of the T radio signals.

44. The base station apparatus according to any of claims 37 to 39, wherein the number of antenna ports different from each other among the number of antenna ports comprised in each of said M antenna port groups comprises 1,2, …, P being a positive integer not greater than N.

45. The base station device according to claim 40, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

46. The base station device according to claim 41, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

47. The base station device according to claim 42, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.

48. The base station apparatus of claim 43, wherein the number of antenna ports different from each other among the number of antenna ports included in each of the M antenna port groups includes 1,2, …, P, and P is a positive integer not greater than N.