CN110474660B

CN110474660B - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN110474660B
Application number: CN201810435332.0A
Authority: CN
Inventors: 陈晋辉; 张晓博; 杨林
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2018-05-09
Filing date: 2018-05-09
Publication date: 2020-06-30
Anticipated expiration: 2038-05-09
Also published as: CN111769861A; CN111769861B; CN110474660A

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. The method comprises the steps that a user equipment receives a first bit block, transmits or receives a first wireless signal on a first time-frequency resource set, and transmits a second wireless signal on a second time-frequency resource set, wherein the user equipment self-determines the second wireless signal's amazon, a second bit field in the first bit block is used for indicating the first time-frequency resource set, and a first bit field in the first bit block is used for simultaneously indicating a first space parameter set used for transmitting the first wireless signal and a second space parameter set used for transmitting the second wireless signal or generating a first multiple access signature of the second wireless signal. The method and the device apply the space parameter group information used for scheduling the PDSCH or the PUSCH to the uplink transmission without grant, thereby reducing the interference between the user equipment performing uplink transmission without grant and improving the performance of uplink transmission without grant.

Description

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

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for grant-less uplink transmission.

Background

In a conventional 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution), uplink transmission at a terminal side is usually based on Grant (Grant) of a base station, and in 5G NR (New Radio Access Technology) Phase (version) 1, the terminal may perform Grant-Free uplink transmission in an air interface resource pre-configured by the base station, so as to reduce overhead of air interface signaling and improve spectrum efficiency of the system.

Large-scale (Massive) MIMO (Multi-Input Multi-Output) is another key technology for future wireless communication, and increases the number of antennas to increase the transmission rate or system capacity. In view of the enhancement of the multi-antenna technology, the usage efficiency of the grant-less transmission scheme and the grant-less resource needs to be further enhanced.

Disclosure of Invention

For grant-free communication, the UE (User Equipment) or other terminal Equipment determines the air interface resources occupied by uplink transmission by itself. The inventors have found through research that how to more efficiently utilize the grant-free resources and how to use uplink transmission beams and multiple access schemes on the radio resources preconfigured for grant-free communication are an urgent problem for massive MIMO.

In view of the above, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

generating a first wireless signal, generating the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1;

transmitting a first wireless signal, a target set of spatial parameters being used for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the user equipment determines the time-frequency resource used for transmitting the first wireless signal by itself.

As an embodiment, the ue selects a time-frequency resource in a first time-frequency resource pool by itself to transmit the first radio signal, and the base station indicates the first time-frequency resource pool.

As one embodiment, the transmission of the first wireless signal is a grant-less transmission.

As an example, the above method has the benefits of: different multiple access schemes can be isolated in a space division mode, so that the interference among different multiple access schemes is reduced, the system is supported to adopt different multiple access schemes according to the channel and the load condition, and the purposes of increasing the system capacity and reducing the implementation complexity are achieved.

Specifically, according to an aspect of the present invention, at least one of the K multiple access schemes includes at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

As an embodiment, the first step is used in a Code Division Multiple Access (CDMA) mode.

As an embodiment, the second step is used in a Sparse Code Multiple Access (SCMA) mode.

As an embodiment, the third step is used for an Interlace Division Multiple Access (IDMA) mode.

Specifically, according to one aspect of the present invention, the method comprises:

receiving first control information, the first control information including K pieces of sub information respectively indicating the K reference signal groups, each of the K pieces of sub information including a multiple access scheme corresponding to the indicated reference signal group.

As an embodiment, Higher Layer (Higher Layer) signaling is used for transmitting the first control information.

As an embodiment, RRC (Radio Resource Control) signaling is used to transmit the first Control information.

As an embodiment, the first control Information is an IE (Information Element).

As an embodiment, the method has the advantage that the system can be flexibly configured with the corresponding relation between the multiple access mode and the transmission beam.

receiving second control information, the second control information being used to indicate the first reference signal group.

As an embodiment, the second Control Information is DCI (Downlink Control Information).

As an embodiment, one field in one DCI is used to indicate the second control information.

As an embodiment, a Physical Downlink Control Channel (PDCCH) is used to transmit the second Control information.

As an example, the above method has the advantage of flexibly configuring the spatial and multiple access schemes.

transmitting third control information, the third control information being used to indicate the first reference signal group, the user equipment determining the first reference signal group by itself based on a measurement result.

As an embodiment, a Physical Uplink Control Channel (PUCCH) is used to transmit the third Control information.

As an embodiment, the third control information is Uplink Control Information (UCI).

As an embodiment, a field in an uplink control information is used to indicate the third control information.

As an embodiment, the method has the advantage that the user equipment determines the space and multiple access scheme by itself, and the flexibility of the system is increased.

transmitting M reference signal groups before transmitting the first wireless signal, M being a positive integer greater than 1, the first reference signal group being one of the M reference signal groups, a first spatial parameter group being used for transmitting the first reference signal group, the first spatial parameter group being usable for inferring the target spatial parameter group.

As an embodiment, the reference signals in the M reference signal groups are SRS (Sounding reference signal).

As one embodiment, the reference signals in the one reference signal group are QCL (Quasi Co-located, class Co-located) spatially.

For one embodiment, spatially QCL for two wireless signals means that the set of spatial parameters used to receive one set of reference signals can be used to infer the set of spatial parameters used to receive another set of reference signals.

For one embodiment, spatially QCL for two wireless signals means that the set of spatial parameters used to transmit one set of reference signals can be used to speculatively derive the set of spatial parameters used to transmit another set of reference signals.

For one embodiment, spatially QCL for two wireless signals means that the set of spatial parameters used to receive one set of reference signals can be used to speculatively derive the set of spatial parameters used to transmit another set of reference signals.

For one embodiment, spatially QCL for two wireless signals means that the set of spatial parameters used to transmit one set of reference signals can be used to infer the set of spatial parameters used to receive another set of reference signals.

For one embodiment, the first set of reference signals is spatially QCL with the first wireless signal.

As an embodiment, the above method has a benefit that the user equipment may autonomously determine the candidate spatial parameter set, and the system may be flexibly configured based on this.

receiving N reference signal groups before transmitting the first wireless signal, wherein N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, and a second spatial parameter group is used for receiving the first reference signal group, and the second spatial parameter group can be used for conjecturing the target spatial parameter group.

As an embodiment, the Reference signals in the N Reference Signal groups are CSI-RS (Channel state information Reference signals).

As an embodiment, the method has the advantage of utilizing the channel reciprocity to determine the transmission space parameters and the multiple access scheme of the uplink wireless signal through the downlink reference signal, thereby reducing the overhead of the reference signal and the signaling.

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

receiving a first wireless signal, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target set of spatial parameters being used for sending the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the base station device receives the wireless signals transmitted by multiple user devices by using the same spatial parameter set, and a multiple access scheme including the same steps but different parameters is used for generating the wireless signals transmitted by the multiple user devices.

transmitting first control information, the first control information including K pieces of sub information respectively indicating the K reference signal groups, each of the K pieces of sub information including a multiple access scheme corresponding to the indicated reference signal group.

transmitting second control information, the second control information being used to indicate the first reference signal group.

receiving third control information, the third control information being used to indicate the first set of reference signals, the first set of reference signals being self-determined by a sender of the first wireless signal based on a measurement result.

receiving M reference signal groups before receiving the first wireless signal, M being a positive integer greater than 1, the first reference signal group being one of the M reference signal groups, a first spatial parameter group being used for sending the first reference signal group, the first spatial parameter group being usable for deriving the target spatial parameter group.

sending N reference signal groups before receiving the first wireless signal, wherein N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, a second spatial parameter group is used for receiving the first reference signal group, and the second spatial parameter group can be used for conjecturing the target spatial parameter group.

The application discloses a user equipment used for wireless communication, characterized by comprising:

a first processor module to generate a first wireless signal, the first wireless signal generated using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1;

a first transceiver module to transmit a first wireless signal, a target set of spatial parameters being used to transmit the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the above user equipment is characterized in that at least one of the K multiple access schemes includes at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

As an embodiment, the above user equipment is characterized in that the first transceiver module receives first control information, the first control information includes K pieces of sub information respectively indicating the K reference signal groups, and each of the K pieces of sub information includes a multiple access scheme corresponding to the indicated reference signal group.

As an embodiment, the above user equipment is characterized in that the first transceiver module receives second control information, the second control information being used to indicate the first reference signal group.

As an embodiment, the above user equipment is characterized in that the first transceiver module transmits third control information, the third control information being used to indicate the first reference signal group, and the user equipment determines the first reference signal group by itself based on the measurement result.

As an embodiment, the ue is characterized in that the first transceiver module transmits M reference signal groups before transmitting the first wireless signal, where M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used for transmitting the first reference signal group, and the first spatial parameter group can be used for inferring the target spatial parameter group.

As an embodiment, the ue is characterized in that the first transceiver module receives N reference signal groups before transmitting the first wireless signal, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, a second spatial parameter group is used for receiving the first reference signal group, and the second spatial parameter group can be used for inferring the target spatial parameter group.

The application discloses a base station device used for wireless communication, characterized by comprising:

a second transceiver module that receives a first wireless signal, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target spatial parameter set is used to transmit the first wireless signal, the target spatial parameter set is associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the base station apparatus is characterized in that at least one of the K multiple access schemes includes at least one of a first step, a second step, a third step, and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

As an embodiment, the base station device is characterized in that the second transceiver module transmits first control information, the first control information includes K pieces of sub information, the K pieces of sub information respectively indicate the K reference signal groups, and each piece of sub information in the K pieces of sub information includes a multiple access scheme corresponding to the indicated reference signal group.

As an embodiment, the base station device as described above is characterized in that the second transceiver module transmits second control information, which is used to indicate the first reference signal group.

As an embodiment, the base station device as described above is characterized in that the second transceiver module receives third control information used to indicate the first reference signal group, and the sender of the first wireless signal determines the first reference signal group by itself based on the measurement result.

As an embodiment, the base station device is characterized in that the second transceiver module receives M reference signal groups before receiving the first wireless signal, where M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used for transmitting the first reference signal group, and the first spatial parameter group can be used for inferring the target spatial parameter group.

As an embodiment, the base station device is characterized in that the second transceiver module transmits N reference signal groups before receiving the first wireless signal, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, a second spatial parameter group is used for receiving the first reference signal group, and the second spatial parameter group can be used for inferring the target spatial parameter group.

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

the different multiple access schemes can be isolated by space division to reduce the interference between the different multiple access schemes, so that the system is supported to adopt different multiple access schemes according to the channel and the load condition, and the purposes of increasing the system capacity and reducing the implementation complexity are achieved.

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 transmitting a first wireless signal according to one embodiment of the present 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;

FIG. 4 shows a schematic diagram of a base station 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 shows a diagram of the correspondence of K multiple access schemes with K sets of reference signals according to an embodiment of the application;

FIG. 7 shows a schematic diagram of a first step, a second step, a third step and a fourth step according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of first control information according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a set of antenna ports for transmitting wireless signals according to an embodiment of the present application;

fig. 10 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 11 shows a block diagram of a processing device for use in a base station 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 flowchart of transmitting a second wireless signal, as shown in fig. 1.

In embodiment 1, the user equipment sequentially generates a first radio signal and transmits the first radio signal.

In embodiment 1, the ue generates the first wireless signal using a first multiple access scheme, where the first multiple access scheme is one of K multiple access schemes, and K is a positive integer greater than 1; a target set of spatial parameters is used for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the first multiple access scheme is one of CDMA, MU-MIMO (Multi-User Multi-Input Multi-Output), SCMA, and IDMA.

As an embodiment, a PUSCH (Physical Uplink Shared Channel) is used to transmit the first wireless signal.

As one embodiment, the first wireless signal carries data.

As one embodiment, the first wireless signal carries higher layer (higher layer) signaling.

As one embodiment, the first wireless signal carries RRC signaling.

As one embodiment, the first wireless signal is a multicarrier symbol.

As one embodiment, the first radio signal is an OFDM (Orthogonal Frequency division multiplexing) symbol.

As one embodiment, the first wireless signal is a DFT-s-OFDM (Discrete fourier transform Spread OFDM) symbol.

As an embodiment, the first bit block sequentially goes through CRC (Cyclic Redundancy Check) attachment, Channel Coding (Channel Coding), rate matching, Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), steps included in the first multiple access scheme, Layer Mapper (Layer Mapper), Precoding (Precoding), RE Mapper (Resource Element Mapper), and OFDM symbol generation to generate the first radio signal.

As an embodiment, the first block of bits is a signal generated after passing through the first multiple access scheme.

As an embodiment, any two of the K multiple access schemes comprise different steps.

As an embodiment, the presence of at least two of the K multiple access schemes comprises different steps.

As an embodiment, at least one of the K multiple access schemes is CDMA.

As an embodiment, at least one of the K multiple access schemes is SCMA.

As an embodiment, at least one of the K multiple access schemes is an IDMA.

As one embodiment, the target set of spatial parameters is used to generate an analog transmit beam that transmits the first wireless signal.

For one embodiment, the set of target spatial parameters act on phase shifters on the radio frequency link to generate analog transmit beams.

As one embodiment, the target set of spatial parameters is used for precoding by baseband circuitry.

As one embodiment, the first wireless signal and the first reference signal group are spatially QCL.

As an embodiment, the spatial parameter set used for transmitting the first reference signal group is used for deriving the target spatial parameter set.

As an embodiment, the set of spatial parameters used for receiving the first set of reference signals is used for deriving the target set of spatial parameters.

As an embodiment, the reference signals in the first reference signal group are CSI-RSs.

As an embodiment, the reference signals in the first reference signal group are SRSs.

As an embodiment, the reference signals in the first set of reference signals are SS (synchronization signal).

As an embodiment, the reference signals in the K reference signal groups are CSI-RSs.

As an embodiment, the reference signals in the K reference signal groups are SRSs.

As an embodiment, the reference signals in the K reference signal groups are SS (synchronization signal).

As an embodiment, at least one of the K multiple access schemes comprises at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

As an embodiment, the P sequences are equal in length, and one of the P sequences is not smaller than P.

As an embodiment, the Q sequences are equal in length, and one of the Q sequences is smaller in length than the Q.

As an example, the P sequences may form a Walsh matrix.

As an example, the P sequences may form a Hadamard matrix.

As an example, the P sequences are the result of cyclic shifts of the same Zadoff-Chu sequence.

As an example, any two sequences of the Q sequences are not orthogonal.

As one embodiment, the Q sequences are sparse sequences.

As one embodiment, the sparse sequence refers to a sequence consisting of 0 and 1 and the number of 0 is greater than the number of 1.

As an embodiment, the constellation mapping employs QPSK.

As an embodiment, the constellation mapping employs 16 QAM.

As an embodiment, the constellation mapping employs 8 PSK.

As an embodiment, the interleaving the symbols after constellation mapping refers to rearranging the symbols in one symbol string.

As an embodiment, the scrambling of the symbols after constellation mapping refers to multiplying elements of a sequence by symbols in a symbol string with the same length after constellation mapping one by one.

As an embodiment, the user equipment receives first control information, the first control information including K pieces of sub information respectively indicating the K reference signal groups, each of the K pieces of sub information including a multiple access scheme corresponding to the indicated reference signal group.

As an embodiment, the first control information is an IE (information element) in RRC signaling.

As an embodiment, a PDSCH (Physical Downlink Shared Channel) is used to transmit the first control information.

As one embodiment, the K sets of reference signals are transmitted before the first wireless signal.

As an embodiment, the K reference signal groups are transmitted before the first control information.

As one embodiment, the receiving second control information, the second control information used to indicate the first reference signal group.

As an embodiment, PDCCH is used to transmit the second control information.

As an embodiment, the second control information is a field in one DCI.

As an embodiment, the user equipment sends third control information, the third control information being used to indicate the first reference signal group, the user equipment self-determines the first reference signal group based on the measurement result.

As an embodiment, a PUCCH is used to transmit the third control information.

As an embodiment, the user equipment performs channel quality measurement on the received L1 reference signal groups, the L1 is a positive integer greater than 1, and the first reference signal group is one of the L1 reference signal groups.

For one embodiment, the channel quality measurements include RSRP (Reference Signal received power) measurements.

As an embodiment, the ue transmits M reference signal groups before transmitting the first wireless signal, where M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used to transmit the first reference signal group, and the first spatial parameter group may be used to derive the target spatial parameter group.

As an embodiment, the reference signals of the M reference signal groups are SRSs.

In one embodiment, the first set of spatial parameters is used to generate an analog transmit beam.

As an embodiment, the ue receives N reference signal groups before transmitting the first wireless signal, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, a second spatial parameter group is used to receive the first reference signal group, and the second spatial parameter group may be used to derive the target spatial parameter group.

As an embodiment, the reference signals in the N reference signal groups are CSI-RSs.

As one embodiment, the second set of spatial parameters is used to generate an analog receive beam.

Example 2

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

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR5G or LTE network architecture 200 may be referred to as EPS (Evolved packet system) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (user equipment) 201, NG-RANs (next generation radio access networks) 202, 5G-CNs (5G-Core networks, 5G Core networks)/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 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 or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn 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, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial 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/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 210. In general, the MME/AMF/UPF211 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 operator-corresponding internet protocol services, and may specifically include the internet, an intranet, IMS (IP multimedia Subsystem), and PS streaming service (PSs).

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

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

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

As an embodiment, the UE201 supports wireless communication for data transmission over an unlicensed spectrum.

As one embodiment, the gNB203 supports wireless communication for data transmission over unlicensed spectrum.

As an embodiment, the UE201 supports NOMA (Non-Orthogonal Multiple Access) based wireless communication.

As one embodiment, the gNB203 supports NOMA-based wireless communications.

As an embodiment, the UE201 supports Grant-Free (Grant-Free) uplink transmission.

As an embodiment, the gNB203 supports grant-less uplink transmission.

As an embodiment, the UE201 supports contention-based uplink transmission.

As an embodiment, the gNB203 supports contention-based uplink transmission.

As an embodiment, the UE201 supports Beamforming (Beamforming) based uplink transmission.

As an embodiment, the gNB203 supports beamforming-based uplink transmission.

As an embodiment, the UE201 supports Massive-MIMO based uplink transmission.

As an embodiment, the gNB203 supports Massive-MIMO based uplink transmission.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) 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, with layers above layer 1 belonging to higher layers. 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 (Medium 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-GW 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 (Hybrid Automatic Repeat reQuest). 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 the present application.

As an embodiment, the first wireless signal is generated in the PDCP sublayer 304.

As an embodiment, the first control information in the present application is generated in a RRC (Radio resource control) sublayer 306.

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

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

As an example, the second set of reference signals in the present application is generated at the PHY 301.

As an example, the third set of reference signals in the present application is generated at the PHY 301.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.

The base station apparatus (410) includes a controller/processor 440, memory 430, receive processor 412, transmit processor 415, transmitter/receiver 416, and antenna 420.

User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, transmitter/receiver 456, and antenna 460.

In UL (Uplink) transmission, processing related to a base station apparatus (410) includes:

a receiver 416 receiving the radio frequency signal through its corresponding antenna 420, converting the received radio frequency signal to a baseband signal, and providing the baseband signal to the receive processor 412;

a receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including multi-antenna reception, demodulation, descrambling, Despreading (Despreading), deinterleaving, channel decoding, and physical layer control signaling extraction, etc.;

a controller/processor 440 implementing L2 layer functions and associated memory 430 storing program codes and data;

the controller/processor 440 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 controller/processor 440 may be provided to the core network;

a controller/processor 440, which determines a target air interface resource that may be occupied by a target uplink radio signal, and sends the result to the receiving processor 412; determining whether the target uplink wireless signal occupies the target air interface resource through blind detection; the target wireless signal comprises the second wireless signal in this application.

In UL transmission, processing related to a user equipment (450) includes:

a data source 467 that provides upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer;

a transmitter 456 for transmitting a radio frequency signal via its respective antenna 460, converting the baseband signal into a radio frequency signal and supplying the radio frequency signal to the respective antenna 460;

a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including channel coding, scrambling, code division multiplexing, interleaving, modulation, multi-antenna transmission, etc.;

controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation of the gNB410, performs L2 layer functions for the user plane and control plane;

the controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410;

a controller/processor 490 that determines the air interface resources occupied by the wireless signals and sends the results to the transmit processor 455.

In DL (Downlink) transmission, processing related to a base station apparatus (410) includes:

a controller/processor 440, upper layer packet arrival, controller/processor 440 providing packet header compression, encryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane; the upper layer packet may include data or control information such as DL-SCH (Downlink shared channel);

a controller/processor 440 associated with a memory 430 that stores program codes and data, the memory 430 may be a computer-readable medium;

a controller/processor 440 comprising a scheduling unit to transmit the requirements, the scheduling unit being configured to schedule air interface resources corresponding to the transmission requirements;

a controller/processor 440, which determines to transmit downlink signaling/data to be transmitted; and sends the results to send processor 415;

a transmit processor 415 that receives the output bit stream of the controller/processor 440, performs various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, precoding, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, etc.;

a transmitter 416 for converting the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmitting it via an antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream. Each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal.

In DL transmission, the processing related to the user equipment (450) may include:

a receiver 456 for converting radio frequency signals received via an antenna 460 to baseband signals for provision to the receive processor 452;

a receive processor 452 that performs various signal receive processing functions for the L1 layer (i.e., physical layer) including multi-antenna reception, demodulation, descrambling, deinterleaving, decoding, and physical layer control signaling extraction, etc.;

a controller/processor 490 receiving the bit stream output by the receive processor 452, providing packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane;

the controller/processor 490 is associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium.

As an embodiment, the UE450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: generating a first wireless signal, generating the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1; transmitting a first wireless signal, a target set of spatial parameters being used for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

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: generating a first wireless signal, generating the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1; transmitting a first wireless signal, a target set of spatial parameters being used for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As one embodiment, the gNB410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the gNB410 apparatus at least: receiving a first wireless signal, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target set of spatial parameters being used for sending the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

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: receiving a first wireless signal, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target set of spatial parameters being used for sending the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

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

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

For one embodiment, at least the former of the transmit processor 455 and the controller/processor 490 is used to generate the first wireless signal in this application.

For one embodiment, at least two of the antenna 460, the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the first wireless signal in this application.

For one embodiment, at least two of the antenna 460, the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the first control information in this application.

For one embodiment, at least two of the antenna 460, the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive second control information in this application.

For one embodiment, at least two of the antenna 460, the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit third control information in this application.

For one embodiment, at least the first two of the antenna 460, the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the set of M reference signals in the present application.

For one embodiment, at least the first two of the antenna 460, the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the set of N reference signals in this application.

For one embodiment, at least two of the antenna 420, the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the first wireless signal in this application.

For one embodiment, at least two of the antenna 420, the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the first control information in this application.

For one embodiment, at least two of the antenna 420, the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the second control information in this application.

For one embodiment, at least two of the antenna 420, the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive third control information in this application.

For one embodiment, at least the first two of the antenna 420, the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the set of M reference signals in this application.

For one embodiment, at least the first two of the antenna 420, the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the N sets of reference signals in the present application.

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 maintaining base station for user equipment U2. In the figure, the steps in the box identified as F1, the box identified as F2, the box identified as F3, the box identified as F4, and the box identified as F5 are optional.

For theBase station N1N reference signal groups are transmitted in step S11, M reference signal groups are received in step S12, first control information is transmitted in step S13, second control information is transmitted in step S14, third control information is received in step S15, and a first wireless signal is received in step S16.

For theUser equipment U2N reference signal groups are received in step S21, M reference signal groups are transmitted in step S22, first control information is received in step S23, second control information is received in step S24, third control information is transmitted in step S25,a first wireless signal is generated in step S26, and the first wireless signal is transmitted in step S27.

In embodiment 5, U2 generates the first wireless signal using a first multiple access scheme, where the first multiple access scheme is one of K multiple access schemes, and K is a positive integer greater than 1; a target set of spatial parameters is used by U2 for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the step in F3 exists, the first control information includes K pieces of sub information respectively indicating the K reference signal groups, and each of the K pieces of sub information includes a multiple access scheme corresponding to the indicated reference signal group.

As an embodiment, step F4 exists, and the second control information is used to indicate the first reference signal group.

As an embodiment, step F5 exists, the third control information is used to indicate the first set of reference signals, and the user equipment determines the first set of reference signals by itself based on the measurement result.

As an embodiment, the step in F2 exists, where M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used to transmit the first reference signal group, and the first spatial parameter group may be used to derive the target spatial parameter group.

As an embodiment, the step of F1 exists, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, a second spatial parameter group is used to receive the first reference signal group, and the second spatial parameter group may be used to derive the target spatial parameter group.

Example 6

Embodiment 6 illustrates the correspondence relationship between K multiple access schemes and K reference signal groups in the present application, as shown in fig. 6.

In embodiment 6, K reference signal groups in the present application correspond to K multiple access schemes in the present application one to one, and meanwhile, the K reference signal groups correspond to K transmit beams one to one, and one spatial parameter group is used to generate one transmit beam. The first set of reference signals in the present application is one of the K sets of reference signals. The first multiple access scheme in the present application is a multiple access scheme corresponding to the first reference signal group among the K multiple access schemes. The target set of spatial parameters in the present application is used to generate the transmit beams of the K transmit beams corresponding to the first set of reference signals. The K transmission beams are K candidate transmission beams used for transmitting the first wireless signal.

As an embodiment, the first wireless signal and the first reference signal group in the present application are spatially QCL.

Example 7

Example 7 illustrates the first step, the second step, the third step and the fourth step in the present application, as shown in fig. 7.

In embodiment 7, the constellation-mapped symbol undergoes the first step, the second step, the third step and the fourth step in this application to generate a first wireless signal. The first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps. At least one of the K multiple access schemes in the present application comprises at least one of a first step, a second step, a third step and a fourth step.

Example 8

Embodiment 8 exemplifies the first control information in the present application, as shown in fig. 8.

In embodiment 8, the first control information is composed of K pieces of sub information, and the first control information is used to indicate K reference signal groups in the present application and a one-to-one correspondence relationship between the K reference signal groups and K multiple access schemes in the present application. The first multiple access scheme in this application is one of the K multiple access schemes. The first multiple access scheme corresponds to a first set of reference signals in the present application. The first set of reference signals is one of the K sets of reference signals. One of the K pieces of sub information indicates the first reference signal group and a correspondence of the first reference signal group to the first multiple access scheme.

As an embodiment, RRC signaling is used to transmit the first control information.

As an embodiment, the first control information is an IE in RRC signaling.

Example 9

Embodiment 9 illustrates an antenna port group for transmitting a wireless signal, as shown in fig. 9.

In fig. 9, one antenna port group includes a positive integer number of antenna ports; one antenna port is formed by superposing antennas in a positive integer number of antenna groups through antenna Virtualization (Virtualization); one antenna group includes a positive integer number of antennas. One antenna group is connected to the baseband processor through one RF (Radio Frequency) chain, and different antenna groups correspond to different RF chains. The mapping coefficients of all antennas in the positive integer number of antenna groups included by a given antenna port to the given antenna port constitute a beamforming vector corresponding to the given antenna port. Mapping coefficients of a plurality of antennas included in any given antenna group in the positive integer number of antenna groups included in the given antenna port to the given antenna port constitute an analog beamforming vector of the given antenna group. And the analog beamforming vectors corresponding to the positive integer number of antenna groups are arranged diagonally to form an analog beamforming matrix corresponding to the given antenna port. The mapping coefficients of the positive integer number of antenna groups to the given antenna port constitute a digital beamforming vector corresponding to the given antenna port. The beamforming vector corresponding to the given antenna port is obtained by multiplying an analog beamforming matrix corresponding to the given antenna port by a digital beamforming vector. Different antenna ports in one antenna port group are formed by the same antenna group, and different antenna ports in the same antenna port group correspond to different beam forming vectors.

Two antenna port groups are shown in fig. 9: antenna port group #0 and antenna port group # 1. The antenna port group #0 is composed of an antenna group #0, and the antenna port group #1 is composed of an antenna group #1 and an antenna group # 2. Mapping coefficients of a plurality of antennas in the antenna group #0 to the antenna port group #0 constitute an analog beamforming vector #0, and mapping coefficients of the antenna group #0 to the antenna port group #0 constitute a digital beamforming vector # 0. Mapping coefficients of the plurality of antennas in the antenna group #1 and the plurality of antennas in the antenna group #2 to the antenna port group #1 constitute an analog beamforming vector #1 and an analog beamforming vector #2, respectively, and mapping coefficients of the antenna group #1 and the antenna group #2 to the antenna port group #1 constitute a digital beamforming vector # 1. A beamforming vector corresponding to any antenna port in the antenna port group #0 is obtained by a product of the analog beamforming vector #0 and the digital beamforming vector # 0. A beamforming vector corresponding to any antenna port in the antenna port group #1 is obtained by multiplying an analog beamforming matrix formed by diagonal arrangement of the analog beamforming vector #1 and the analog beamforming vector #2 by the digital beamforming vector # 1.

For one embodiment, one antenna port group includes one antenna port. For example, the antenna port group #0 includes one antenna port.

As an auxiliary embodiment of the foregoing embodiment, the analog beamforming matrix corresponding to the one antenna port is reduced to an analog beamforming vector, the digital beamforming vector corresponding to the one antenna port is reduced to a scalar, and the beamforming vector corresponding to the one antenna port is equal to the analog beamforming vector corresponding to the one antenna port.

For one embodiment, one antenna port group includes a plurality of antenna ports. For example, the antenna port group #1 in fig. 9 includes a plurality of antenna ports.

As an additional embodiment of the above embodiment, the plurality of antenna ports correspond to the same analog beamforming matrix and different digital beamforming vectors.

As an embodiment, the antenna ports in different antenna port groups correspond to different analog beamforming matrices.

As an embodiment, any two antenna ports in one antenna port group are QCL.

As an embodiment, any two antenna ports in an antenna port group are QCL spatially.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 10. In fig. 10, the UE processing apparatus 1000 is mainly composed of a first processor module 1001 and a first transceiver module 1002.

The first processor module 1001 generates a first wireless signal and the first transceiver module 1002 transmits the first wireless signal.

In embodiment 10, the UE processing apparatus 1000 generates the first wireless signal by using a first multiple access scheme, where the first multiple access scheme is one of K multiple access schemes, and K is a positive integer greater than 1; a target set of spatial parameters is used for transmitting the first wireless signal, the target set of spatial parameters being associated to a first set of reference signals, the first set of reference signals being one of K sets of reference signals, the K sets of spatial reference signals being in one-to-one correspondence with the K multiple access schemes.

For one embodiment, the first handler module 1001 includes the transmit processor 455 and the controller/processor 490 of embodiment 4.

The first transceiver module 1002 includes the antenna 460, the transmitter 456, and the transmission processor 455 of embodiment 4.

For one embodiment, the first transceiver module 1002 includes the antenna 460, the receiver 456, and the receive processor 452 in embodiment 4.

For one embodiment, the first processor module 1001 and the first transceiver module 1002 include the controller/processor 490 of embodiment 4.

As an embodiment, the first transceiver module 1002 receives first control information, the first control information comprising K pieces of sub information respectively indicating the K reference signal groups, each of the K pieces of sub information comprising a multiple access scheme corresponding to the indicated reference signal group.

For one embodiment, the first transceiver module 1002 receives second control information, which is used to indicate the first reference signal group.

As an embodiment, the first transceiver module 1002 sends third control information, which is used to indicate the first reference signal group, which the user equipment determines by itself based on the measurement result.

For one embodiment, the first transceiver module 1002 receives N reference signal groups before transmitting the first wireless signal, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, and a second spatial parameter group is used to receive the first reference signal group, and the second spatial parameter group may be used to derive the target spatial parameter group.

Example 11

Embodiment 11 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 11. In fig. 11, the base station apparatus processing device 1100 is mainly composed of a second transceiver module 1101.

The second transceiver module 1101 receives a first wireless signal.

In embodiment 11, the base station device processing apparatus 1100 assumes that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target spatial parameter group being used for transmitting the first wireless signal, the target spatial parameter group being associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes.

As an embodiment, the second transceiver module 1101 transmits first control information, the first control information including K pieces of sub information respectively indicating the K reference signal groups, each of the K pieces of sub information including a multiple access scheme corresponding to the indicated reference signal group.

For one embodiment, the second transceiver module 1101 transmits second control information, which is used to indicate the first reference signal group.

For one embodiment, the second transceiver module 1101 receives third control information, which is used to indicate the first reference signal group, which is determined by the sender of the first wireless signal based on the measurement results.

For one embodiment, the second transceiver module 1101 receives M reference signal groups before receiving the first wireless signal, where M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used for transmitting the first reference signal group, and the first spatial parameter group may be used for inferring the target spatial parameter group.

For one embodiment, the second transceiver module 1101 transmits N reference signal groups before receiving the first wireless signal, where N is a positive integer greater than 1, the first reference signal group is one of the N reference signal groups, and a second spatial parameter group is used for receiving the first reference signal group, and the second spatial parameter group may be used for inferring the target spatial parameter group.

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. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station 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, a gNB (NR node B), a TRP (Transmitter Receiver Point), and other wireless communication devices.

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

Claims

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

transmitting a first wireless signal and third control information, a target spatial parameter group being used for transmitting the first wireless signal, the target spatial parameter group being associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes; the third control information is used to indicate the first set of reference signals, which the user equipment self-determines based on measurement results.

2. The method according to claim 1, wherein at least one of the K multiple access schemes comprises at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

3. The method according to claim 1 or 2, comprising:

4. The method according to claim 1 or 2, comprising:

5. The method according to claim 1 or 2, comprising:

6. The method according to claim 1 or 2, comprising:

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

receiving a first wireless signal and third control information, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target spatial parameter set is used for transmitting the first wireless signal, the target spatial parameter set being associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes; the third control information is used to indicate the first set of reference signals, which the sender of the first wireless signal self-determines based on measurement results.

8. The method according to claim 7, wherein at least one of the K multiple access schemes comprises at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

9. The method according to claim 7 or 8, comprising:

10. The method according to claim 7 or 8, comprising:

11. The method according to claim 7 or 8, comprising:

12. The method according to claim 7 or 8, comprising:

13. A user device configured for wireless communication, comprising:

a first transceiver module transmitting a first wireless signal and third control information, a target spatial parameter group being used to transmit the first wireless signal, the target spatial parameter group being associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes; the third control information is used to indicate the first set of reference signals, which the user equipment self-determines based on measurement results.

14. The user equipment of claim 13, wherein at least one of the K multiple access schemes comprises at least one of a first step, a second step, a third step, and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

15. The UE of claim 13 or 14, wherein the first transceiver module receives first control information, the first control information comprising K sub-information respectively indicating the K reference signal groups, and each of the K sub-information comprises a multiple access scheme corresponding to the indicated reference signal group.

16. The UE of claim 13 or 14, wherein the first transceiver module receives second control information, the second control information being used to indicate the first set of reference signals.

17. The UE of claim 13 or 14, wherein the first transceiver module transmits M reference signal groups before transmitting the first wireless signal, M is a positive integer greater than 1, the first reference signal group is one of the M reference signal groups, a first spatial parameter group is used for transmitting the first reference signal group, and the first spatial parameter group can be used for inferring the target spatial parameter group.

18. The UE of claim 13 or 14, wherein the first transceiver module receives N sets of reference signals before transmitting the first wireless signal, N being a positive integer greater than 1, wherein the first set of reference signals is one of the N sets of reference signals, wherein a second set of spatial parameters is used for receiving the first set of reference signals, and wherein the second set of spatial parameters can be used for inferring the target set of spatial parameters.

19. A base station device used for wireless communication, comprising:

a second transceiver module receiving a first wireless signal and receiving third control information, assuming that a sender of the first wireless signal generates the first wireless signal using a first multiple access scheme, the first multiple access scheme being one of K multiple access schemes, K being a positive integer greater than 1, a target spatial parameter set is used to transmit the first wireless signal, the target spatial parameter set is associated to a first reference signal group, the first reference signal group being one of K reference signal groups, the K spatial reference signal groups being in one-to-one correspondence with the K multiple access schemes; the third control information is used to indicate the first set of reference signals, which the sender of the first wireless signal self-determines based on measurement results.

20. The base station device of claim 19, wherein at least one of the K multiple access schemes comprises at least one of a first step, a second step, a third step and a fourth step; the first step is to adopt one sequence in P sequences to expand symbols after constellation mapping, wherein P is a positive integer larger than 1, and any two sequences in the P sequences are orthogonal; the second step is to adopt one sequence in Q sequences to expand symbols after constellation mapping, wherein Q is a positive integer greater than 1, and at least two sequences in the Q sequences are not orthogonal; the third step is to interleave the symbols after constellation mapping; the fourth step is to scramble the symbols after constellation mapping; at least two of the K multiple access schemes have different steps.

21. The base station device of claim 19 or 20, wherein the second transceiver module transmits first control information, the first control information comprising K pieces of sub information, the K pieces of sub information respectively indicating the K reference signal groups, and each piece of sub information of the K pieces of sub information comprises a multiple access scheme corresponding to the indicated reference signal group.

22. The base station device of claim 19 or 20, wherein the second transceiver module transmits second control information, the second control information being used to indicate the first set of reference signals.

23. The base station apparatus of claim 19 or 20, wherein the second transceiver module receives M reference signal groups before receiving the first wireless signal, wherein M is a positive integer greater than 1, wherein the first reference signal group is one of the M reference signal groups, wherein a first spatial parameter group is used for transmitting the first reference signal group, and wherein the first spatial parameter group can be used for inferring the target spatial parameter group.

24. The base station apparatus of claim 19 or 20, wherein the second transceiver module transmits N reference signal groups before receiving the first wireless signal, wherein N is a positive integer greater than 1, wherein the first reference signal group is one of the N reference signal groups, wherein a second spatial parameter group is used for receiving the first reference signal group, and wherein the second spatial parameter group can be used for inferring the target spatial parameter group.