CN110267344B - Method and device used in user equipment and base station for wireless communication - Google Patents

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

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Publication number
CN110267344B
CN110267344B CN201810200863.1A CN201810200863A CN110267344B CN 110267344 B CN110267344 B CN 110267344B CN 201810200863 A CN201810200863 A CN 201810200863A CN 110267344 B CN110267344 B CN 110267344B
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time
control signal
frequency resources
pool
antenna
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CN110267344A (en
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陈晋辉
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

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 user equipment receives a first control signal, wherein the first control signal indicates a first time-frequency resource pool; receiving a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources; a first wireless signal is transmitted in a first set of time-frequency resources. A relationship between the first set of time-frequency resources and the first pool of time-frequency resources is used to determine an interpretation of the first bit domain by the user equipment. The method and the device are used for indicating the transmission configuration on the time frequency resources of two different types, so that the transmission efficiency is improved.

Description

Method and device used in user equipment and base station for wireless communication
Technical Field
The present invention relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for Grant Free (Grant Free) uplink transmission.
Background
In a conventional 3GPP (3 rd 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, multiple-Input multiple-Output) is another key technology for future wireless communication, and the transmission rate or the system capacity is increased by increasing the number of antennas. 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 the grant-free communication, 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 the uplink transmission beam on the radio resources preconfigured for grant-free communication is a problem to be solved 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 present application discloses a method in a user equipment for wireless communication, comprising:
receiving a first control signal, wherein the first control signal indicates a first time-frequency resource pool;
receiving a second control signal, a first block of bits being used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources;
transmitting a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As an embodiment, the first control signal carries higher-layer (higher-layer) signaling.
As an embodiment, the first Control signal carries Radio Resource Control (RRC) signaling.
As an embodiment, the second Control signal carries a Physical Downlink Control Channel (PDCCH).
As an embodiment, the first bit block is a DCI (Downlink Control Information) bit block for uplink transmission grant.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field is used to indicate SRS (Sounding Reference Signal) resources.
As an embodiment, the first time-frequency resource pool includes a plurality of slots occurring periodically, and the first set of time-frequency resources occupies only one slot of the plurality of slots.
As an example, the above method may be used to reduce interference between two different types of transmissions simultaneously on the same time-frequency resource.
As an embodiment, the method may be used to indicate transmission configurations on two different types of time-frequency resources, so as to improve transmission efficiency.
Specifically, according to an aspect of the present invention, the method is characterized in that, if the ue does not receive an indication of data transmission on time-frequency resources in the first time-frequency resource pool, the ue may autonomously decide whether to transmit data on time-frequency resources in the first time-frequency resource pool.
As an embodiment, the time-frequency resources in the first set of time-frequency resources may be used for non-granted uplink transmission.
As an embodiment, the method may be used to transmit the uplink radio resource signal to be granted on the pre-configured time-frequency resource that may be used for the grant-free uplink transmission, so as to improve the utilization efficiency of the time-frequency resource.
As an example, the above method may be used to reduce interference between two types of transmissions that are simultaneously conducted on the same time-frequency resource.
In particular, according to an aspect of the invention, the above method is characterized in that said first bit field in said second control signal is used for determining a first multiple access signature group, to which said first multiple access signature belongs.
As an embodiment, the identity of the user equipment is used to determine the first multiple access signature from the first multiple access signature group.
As an embodiment, the identity of the user equipment is a C-RNTI.
As an embodiment, the identification of the user equipment comprises 16 bits.
As an example, the above method may be used to reduce interference between neighboring multiple access users through multiple access signature grouping.
Specifically, according to an aspect of the present invention, the method is characterized in that the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first time-frequency resource set belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
As an embodiment, the first sub-pool of time-frequency resources includes a plurality of slots occurring periodically, and the first set of time-frequency resources occupies only one of the slots.
As an embodiment, the method may be used to select a multi-antenna technical scheme according to a time-frequency resource configuration so as to reduce interference between multiple users through spatial division (spatial division).
Specifically, according to an aspect of the present invention, the method is characterized in that the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used for indicating the second multi-antenna technical scheme from the second transmission configuration table.
As an embodiment, the method may be used to apply different multi-antenna solutions on different types of time-frequency resources, so as to reduce interference between multiple users through spatial splitting.
Specifically, according to an aspect of the present invention, the method is characterized by including:
receiving a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
As an embodiment, the third control signal is UE specific.
As one embodiment, the first control signal is cell common.
As an embodiment, the first control signal and the third control signal are RRC Common (Common) signaling and RRC Dedicated (Dedicated) signaling, respectively.
As an embodiment, the first transmission configuration table and the second transmission configuration table are two different lists.
As an embodiment, the first transmission configuration table and the second transmission configuration table belong to different IEs (Information elements, information particles) in RRC signaling.
The application discloses a method used in a base station device for wireless communication, which is characterized by comprising the following steps:
sending a first control signal, wherein the first control signal indicates a first time-frequency resource pool;
transmitting a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources;
receiving a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
In particular, according to an aspect of the present invention, the method is characterized in that if the receiver of the first control signal does not receive the indication of transmitting data on the time-frequency resources in the first time-frequency resource pool, the receiver of the first control signal may autonomously decide whether to transmit data on the time-frequency resources in the first time-frequency resource pool.
In particular, according to an aspect of the invention, the above method is characterized in that said first bit field in said second control signal is used for determining a first multiple access signature group, to which said first multiple access signature belongs.
Specifically, according to an aspect of the present invention, the method is characterized in that the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first time-frequency resource set belongs to the first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution is related to the position of the first time-frequency resource sub-pool in the Q1 time-frequency resource sub-pools; and Q1 is a positive integer greater than 1.
Specifically, according to an aspect of the present invention, the method is characterized in that the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used for indicating the second multi-antenna technical scheme from the second transmission configuration table.
Specifically, according to one aspect of the present invention, the above method is characterized by comprising:
transmitting a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
The application discloses a user equipment used for wireless communication, characterized by comprising:
a first receiver module to receive a first control signal, the first control signal indicating a first time-frequency resource pool;
a second receiver module to receive a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first domain of bits and a second domain of bits, the second domain of bits indicating a first set of time-frequency resources;
a third transmitter module that transmits a first wireless signal in a first set of time-frequency resources;
wherein, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multiple antenna solution and the first multiple antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
Specifically, according to an aspect of the present invention, the ue is characterized in that if the ue does not receive an indication of data transmission on time-frequency resources in the first time-frequency resource pool, the ue may autonomously determine whether to transmit data on time-frequency resources in the first time-frequency resource pool.
In particular, according to an aspect of the present invention, the above user equipment is characterized in that the first bit field in the second control signal is used for determining a first multiple access signature group to which the first multiple access signature belongs.
Specifically, according to an aspect of the present invention, the ue is characterized in that the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first time-frequency resource set belongs to the first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
Specifically, according to an aspect of the present invention, the user equipment is characterized in that the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used to indicate the second multi-antenna technical scheme from the second transmission configuration table.
Specifically, according to an aspect of the present invention, the user equipment is characterized by including:
receiving a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
The application discloses a base station device used for wireless communication, characterized by comprising:
a first transmitter module that transmits a first control signal indicating a first time-frequency resource pool;
a second transmitter module to transmit a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources;
a third receiver module that receives a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
Specifically, according to an aspect of the present invention, the base station apparatus is characterized in that if the receiver of the first control signal does not receive an indication of data transmission on the time-frequency resources in the first time-frequency resource pool, the receiver of the first control signal may autonomously decide whether to transmit data on the time-frequency resources in the first time-frequency resource pool.
Specifically, according to an aspect of the present invention, the above base station apparatus is characterized in that the first bit field in the second control signal is used to determine a first multiple access signature group to which the first multiple access signature belongs.
Specifically, according to an aspect of the present invention, the base station device is characterized in that the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first time-frequency resource set belongs to the first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
Specifically, according to an aspect of the present invention, the base station device is characterized in that the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used to indicate the second multi-antenna solution from the second transmission configuration table.
Specifically, according to an aspect of the present invention, the base station apparatus is characterized by including:
transmitting a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
As an example, compared with the conventional scheme, the present application has the following advantages:
-for indicating the transmission configuration on two different types of time-frequency resources, improving the transmission efficiency;
sending the uplink radio resource signal to be granted on the pre-configured time frequency resource that can be used for the grant-free uplink transmission, thereby improving the utilization efficiency of the time frequency resource.
Reducing interference between two types of transmissions simultaneously on the same time-frequency resource.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of the non-limiting embodiments with reference to the following 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 schematic diagram of time-frequency resources according to an embodiment of the application;
FIG. 7 shows a schematic diagram of a first pool and a first set of time-frequency resources according to an embodiment of the present application;
FIG. 8 shows a schematic diagram of a first multiple access signature according to an embodiment of the present application;
FIG. 9 shows a schematic diagram of a first bit block according to an embodiment of the present application;
fig. 10 shows a schematic diagram of a first and a second multi-antenna solution according to an embodiment of the application;
FIG. 11 shows a diagram of Q1 sub-pools of time-frequency resources, according to an embodiment of the present application;
FIG. 12 shows a schematic diagram of a set of antenna ports for transmitting wireless signals according to an embodiment of the present application;
fig. 13 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;
fig. 14 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 flow chart for transmitting a first wireless signal, as shown in fig. 1.
In embodiment 1, the ue sequentially receives a first control signal, receives a second control signal, and transmits a first radio signal in a first set of time and frequency resources.
In embodiment 1, the first control signal indicates a first time-frequency resource pool; a first bit block is used to generate the second control signal, the first bit block comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources; if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multi-antenna solution and the first multi-antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As an embodiment, the first control signal is transmitted on a PDSCH (Physical Downlink shared Channel).
As an embodiment, a Transport Channel (Transport Channel) corresponding to the first control signal is a DL-SCH (Downlink Shared Channel).
As an embodiment, the first control signal carries RRC signaling.
As one embodiment, the first control signal is cell common.
As one embodiment, the first control signal is RRC Common (Common) signaling.
As an embodiment, the second Control signal is transmitted on a PDCCH (Physical Downlink Control Channel).
In one embodiment, the first time-frequency Resource pool includes a plurality of RBs (Resource blocks).
As an embodiment, at least two RBs of the plurality of RBs are discontinuous in frequency domain resources without other RBs belonging to the first set of time frequency resources in between.
As an embodiment, at least two RBs of the plurality of RBs are discontinuous on time domain resources and other RBs belonging to the first set of time and frequency resources do not exist in the middle.
As an embodiment, the first bit block sequentially passes through CRC (Cyclic Redundancy Check) attachment, channel Coding (Channel Coding), rate matching, scrambling (Scrambling), modulation Mapper (Modulation Mapper), layer Mapper (Layer Mapper), precoding (Precoding), RE Mapper (Resource Element Mapper), and OFDM symbol generation to generate the second control signal.
As an embodiment, the first bit block is obtained by sequentially performing OFDM symbol demodulation, RE demapping, layer demapping, demodulation, channel decoding, and CRC check on the second control signal.
As one embodiment, the first bit block is comprised of a plurality of bit fields including the first bit field and the second bit field.
As an embodiment, values of bit strings in the second bit domain are used to determine the time-frequency resources comprised by the first set of time-frequency resources.
As an embodiment, the minimum unit of the time-frequency Resource is one RE (Resource Element).
As one embodiment, one RB includes 12 REs.
As an embodiment, a value of a bit string in the second bit domain is used to determine the RBs comprised by the first set of time-frequency resources.
As an embodiment, values of bit strings in the second bit domain are used to determine REs comprised by the first set of time-frequency resources.
As an embodiment, the frequency domain resource occupied by one RE is a subcarrier bandwidth, and the time domain resource occupied by one OFDM (Orthogonal frequency Division Multiplexing) symbol is a time domain resource.
As one embodiment, the first bit block includes a third field used to indicate a target antenna port group used to transmit the first wireless signal.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate the identity of a first set of reference signals and the same spatial reception parameters are used for receiving the first wireless signal and the first set of reference signals.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate an identity of a first reference signal group and the same spatial transmission parameters are used for transmitting the first wireless signal with the first reference signal group.
As one embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate that the first wireless signal is spatially QCL (Quasi Co-located, class Co-located) with a first set of reference signals.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate that the set of antenna ports used to transmit the first wireless signal is spatially QCL (Quasi Co-located, class Co-located) with the set of antenna ports used to transmit the first set of reference signals.
As an example, the spatial QCL for two wireless signals may refer to the spatial set of reception parameters used to receive one reference signal group that may be used to infer the spatial set of reception parameters used to receive one reference signal group.
As an example, QCL for two wireless signal groups may refer to spatial receiving parameter sets used to transmit one reference signal group, which may be used to speculate as to the spatial receiving parameter sets used to transmit one reference signal group.
For one embodiment, the two antenna port groups spatially QCL means that the set of spatial receiving parameters used to receive one reference signal group may be used to infer the set of spatial receiving parameters used to receive one reference signal group.
For one embodiment, the spatial QCL for two antenna port groups means that the set of spatial receiving parameters used to transmit one reference signal group may be used to speculate the set of spatial receiving parameters used to transmit one reference signal group.
For one embodiment, the first reference signal group is an uplink reference signal group.
As one embodiment, the first reference signal group is a downlink reference signal group.
As an embodiment, the first Reference Signal group is a CSI-RS (Channel State Information Reference Signal).
As an embodiment, the first Reference Signal group is SRS (Sounding Reference Signal).
As an example, the first set of reference signals is SS (Synchronization Signal).
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate that the target set of antenna ports is spatially QCL (Quasi Co-located, class Co-located) with the set of antenna ports used to transmit the first set of reference signals.
For one embodiment, the spatial QCL of two reference signal groups means that the set of spatial receiving parameters used to receive one reference signal group can be used to infer the set of spatial receiving parameters used to receive one reference signal group.
For one embodiment, the spatial QCL of two reference signal groups means that the set of spatial receiving parameters used to transmit one reference signal group may be used to speculate the set of spatial receiving parameters used to transmit one reference signal group.
As an embodiment, the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, which means that there is no RE belonging to both the first set of time-frequency resources and the first pool of time-frequency resources.
As an embodiment, the first set of time-frequency resources and the first pool of time-frequency resources are orthogonal, which means that: there is not one RE group belonging to both the first set of time-frequency resources and the first pool of time-frequency resources, the RE group includes a plurality of REs, and the number of REs in the RE group is equal to the number of elements in the first multiple access signature.
As an embodiment, the overlapping of the first set of time-frequency resources and the first time-frequency resource pool means: there is at least one RE belonging to both the first set of time-frequency resources and the first pool of time-frequency resources.
As an embodiment, the overlapping of the first set of time-frequency resources and the first pool of time-frequency resources means: there is at least one RE group belonging to both the first set of time-frequency resources and the first pool of time-frequency resources, the RE group comprising a number of REs, the number of REs in the RE group being equal to the number of elements in the first multiple access signature.
As an embodiment, the overlapping of the first set of time-frequency resources and the first time-frequency resource pool means: the first set of time-frequency resources belongs to the first pool of time-frequency resources.
In one embodiment, the first set of time-frequency resources and the first time-frequency resource pool respectively include a plurality of REs.
As an embodiment, the first set of time-frequency resources comprises time-frequency resources that are discontinuous in time domain or frequency domain.
As an embodiment, the second multi-antenna solution is different from the first multi-antenna solution.
As an embodiment, the spatial transmission parameters adopted by the first multi-antenna technical scheme and the second multi-antenna technical scheme are different.
As an embodiment, the first multi-antenna solution and the second multi-antenna solution use different analog transmission beams.
As an embodiment, the precoding vectors adopted by the first multi-antenna technical scheme and the second multi-antenna technical scheme are different.
As an embodiment, the first multi-antenna solution employs spatial multiplexing, and the second multi-antenna solution employs spatial diversity.
As an embodiment, the spatial receiving parameters adopted by the first multi-antenna technical scheme and the second multi-antenna technical scheme are different.
As an example, the analog receiving beams adopted by the first multi-antenna technical scheme and the second multi-antenna technical scheme are different.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate identification of a first set of reference signals and the same spatial reception parameters are used to receive the first wireless signal and the first set of reference signals; if the first set of time-frequency resources overlaps with the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate identification of a second set of reference signals and the same spatial reception parameters are used to receive the first wireless signal and the second set of reference signals; the first reference signal group is different from the second reference signal group.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate identification of a first set of reference signals and the same spatial transmission parameters are used to transmit the first wireless signal with the first set of reference signals; if the first set of time-frequency resources overlaps the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate identification of a second set of reference signals and the same spatial reception parameters are used to receive the first wireless signal and the second set of reference signals, the first set of reference signals being different from the second set of reference signals.
As an embodiment, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate that the first wireless signal is QCL (Quasi Co-located ) spatially with a first set of reference signals; the first bit field in the second control signal is used to indicate that the first wireless signal is spatially QCL (Quasi Co-located ) with a second set of reference signals if the first set of time-frequency resources overlaps the first pool of time-frequency resources; the first reference signal group is different from the second reference signal group.
For one embodiment, the second reference signal group is an uplink reference signal group.
In one embodiment, the second reference signal group is a downlink reference signal group.
As an embodiment, the second Reference Signal group is a CSI-RS (Channel State Information Reference Signal).
As an embodiment, the second Reference Signal group is SRS (Sounding Reference Signal).
As an embodiment, the second reference Signal group is SS (Synchronization Signal).
As an embodiment, if the first set of time-frequency resources overlaps with the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate the second multi-antenna solution and the first multiple access signature.
As an embodiment, one of the multiple access signatures corresponds to one spreading sequence (spreading sequence).
As an embodiment, one of said multiple access signatures corresponds to one scrambling sequence (scrambling sequence).
As an embodiment, one of the multiple access signatures corresponds to one interleaver.
In one embodiment, at least one of the spreading sequence, the scrambling sequence, and the interleaver is different for two different multiple access signatures.
As an embodiment, at least two of the spreading sequence, the scrambling sequence and the interleaver are used to determine a multiple access signature.
As an embodiment, if the ue does not receive an indication to transmit data on time-frequency resources in the first time-frequency resource pool, the ue may autonomously decide whether to transmit data on time-frequency resources in the first time-frequency resource pool.
As an embodiment, the first bit field in the second control signal is used for determining a first multiple access signature group to which the first multiple access signature belongs.
As an embodiment, the first time-frequency resource pool corresponds to multiple access signature groups, and multiple access signatures adopted by radios transmitted by the ue on the time-frequency resources in the first time-frequency resource pool belong to one of the multiple access signature groups, and the first multiple access signature group is one of the multiple access signature groups.
As an embodiment, the first multiple access signature group employs a sequence having a characteristic different from a characteristic of a sequence employed by at least one of the multiple access signature groups.
As an embodiment, the second multiple access signature group is another multiple access signature group of the multiple access signature groups, the second multiple access signature group using a pseudo random sequence as a spreading sequence, and the first multiple access signature group using a Zadoff-Chu sequence as a spreading sequence.
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 bs (gnbs) 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 (transmit receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC210. 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/EPC210. 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-GW213. 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 a sub-embodiment, the UE201 corresponds to the UE in the present application.
As a sub-embodiment, the UE201 corresponds to the terminal in the present application.
As a sub-embodiment, the gNB203 corresponds to the base station in this application.
As a sub-embodiment, the UE201 supports wireless communication for data transmission over an unlicensed spectrum.
As a sub-embodiment, the gNB203 supports wireless communication for data transmission over unlicensed spectrum.
As a sub-embodiment, the UE201 supports NOMA (Non-Orthogonal Multiple Access) based wireless communication.
As a sub-embodiment, the gNB203 supports NOMA-based wireless communications.
As a sub-embodiment, the UE201 supports Grant-Free (Grant-Free) uplink transmission.
As a sub-embodiment, the gNB203 supports grant-less uplink transmission.
As a sub-embodiment, the UE201 supports contention-based uplink transmission.
As a sub-embodiment, the gNB203 supports contention-based uplink transmission.
As a sub-embodiment, the UE201 supports Beamforming (Beamforming) based uplink transmission.
As a sub-embodiment, the gNB203 supports beamforming-based uplink transmission.
As a sub-embodiment, the UE201 supports Massive-MIMO based uplink transmission.
As a sub-embodiment, the gNB203 supports Mass ive-MIMO based uplink transmission.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a 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 PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301. 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 a RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer). 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.
The radio protocol architecture of fig. 3 is applicable to the user equipment in the present application as an example.
The radio protocol architecture of fig. 3 is applicable to the base station in the present application as an example.
As an embodiment, the first control signal in this application is generated in the RRC sublayer 306.
As an embodiment, the second control signal in this application is generated in the PHY301.
As an example, the first wireless signal in this application is generated in the PHY301.
As an example, the first bit block in this application is passed to the PHY301 by the L2 layer.
As an example, the first bit block in this application is passed by the MAC layer 302 to the PHY301.
As an embodiment, the third control signal is generated in the RRC sublayer 306.
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., physical layer) including multi-antenna reception, demodulation, descrambling, despreading (desplading), deinterleaving, channel decoding, and physical layer control signaling extraction, etc.;
a controller/processor 440, implementing L2 layer functions, and associated with a memory 430 that stores 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 that determines target air interface resources likely to be occupied by the target wireless signal and sends the results to the receive processor 412; determining whether the target uplink wireless signal occupies the target air interface resource through blind detection; the target wireless signal includes at least one of the first wireless signal (the target air interface resource corresponds to and includes the Q1 air interface resources in this application) and the second wireless signal (the target air interface resource corresponds to and includes the Q3 air interface resources 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 transmission 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, and the like;
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, implementing 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 provides 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 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 including a scheduling unit to schedule air interface resources corresponding to 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 a sub-embodiment, the UE450 apparatus comprises: 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: receiving a first control signal, wherein the first control signal indicates a first time-frequency resource pool; receiving a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources; transmitting a first wireless signal in a first set of time-frequency resources; wherein, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multiple antenna solution and the first multiple antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As a sub-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 a first control signal, wherein the first control signal indicates a first time-frequency resource pool; receiving a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources; transmitting a first wireless signal in a first set of time-frequency resources; wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; the first bit field in the second control signal is used to indicate a second multi-antenna solution and the second multi-antenna solution is used to transmit the first wireless signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in the code domain.
As a sub-embodiment, the gNB410 apparatus comprises: 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. The gNB410 apparatus at least: sending a first control signal, wherein the first control signal indicates a first time-frequency resource pool; transmitting a second control signal, a first block of bits being used to generate the second control signal, the first block of bits comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources; receiving a first wireless signal in a first set of time-frequency resources; wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As a sub-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: sending a first control signal, wherein the first control signal indicates a first time-frequency resource pool; transmitting a second control signal, a first block of bits being used to generate the second control signal, the first block of bits comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources; receiving a first wireless signal in a first set of time-frequency resources; wherein, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multiple antenna solution and the first multiple antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.
As a sub-embodiment, the gNB410 corresponds to a base station in the present application.
As a sub-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 first control signal in this application.
As a sub-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 second control signal in this application.
As a sub-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 first wireless signal in this application.
As a sub-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 first control signal in this application.
As a sub-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 signal in this application.
As a sub-embodiment, controller/processor 440 is used to generate the first bit block in this application.
Example 5
Embodiment 5 illustrates a flow chart of uplink transmission, as shown in fig. 5. In fig. 5, the base station N1 is a maintenance base station of the serving cell of the user equipment U2. In the figure, the step in the block identified as F1 is optional.
ForBase station N1The first control signal is transmitted in step S11, the third control signal is transmitted in step S12, the second control signal is transmitted in step S13, and the first wireless signal is received in step S14.
ForUser equipment U2The first control signal is received in step S21, the third control signal is received in step S22, the second control signal is received in step S23, and the first wireless signal is transmitted in step S24.
In embodiment 5, the first wireless signal is transmitted in a first set of time-frequency resources, and if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multi-antenna solution and the first multi-antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first radio signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first radio signal occupies the first multiple access signature in the code domain.
As an embodiment, if the ue does not receive an indication to transmit data on time-frequency resources in the first time-frequency resource pool, the ue may autonomously decide whether to transmit data on time-frequency resources in the first time-frequency resource pool.
As an embodiment, the first bit field in the second control signal is used for determining a first multiple access signature group to which the first multiple access signature belongs.
As an embodiment, the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
As an embodiment, the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used to indicate the second multi-antenna solution from the second transmission configuration table.
As an embodiment, the step in block F1 exists, the third control signal is used to indicate a first transmission configuration table, and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
Example 6
Embodiment 6 illustrates time-frequency resources, as shown in fig. 6. In fig. 6, a thin line square represents one RE, and a thick line square represents one time-frequency Resource Block (RB).
In embodiment 6, the time-frequency Resource block occupies M subcarriers in a frequency domain, occupies N multicarrier symbols in a time domain, and one time-frequency Resource Element (RE) belongs to the time-frequency Resource block
In one embodiment, the modulation symbols corresponding to the first wireless signal are mapped to the time-frequency resource block.
As an embodiment, after passing through the first multiple access signature, the modulation symbol corresponding to the first wireless signal is mapped in the RE of the time-frequency resource block according to the first criterion of frequency domain and the second criterion of time domain.
As an embodiment, after passing through the first multiple access signature, the modulation symbol corresponding to the first wireless signal is mapped in the RE of the time-frequency resource block according to the first criterion of the time domain and the second criterion of the frequency domain.
As an embodiment, the modulation symbol corresponding to the first wireless signal is according to a after undergoing the first multiple access signature M,1 ，A M-1,1 ，A M-2,1 ，…，A 1,1 ，A M,2 ，A M-1,2 ，A M-2,2 ，…，A M,N ，A M-N,1 ，A M-N,1 ，…，A 1,N And mapping in turn within REs of the time-frequency resource block, wherein occupation of REs not allocated to the air interface resource (if any) is avoided.
As an embodiment, the modulation symbol corresponding to the first wireless signal is according to a after undergoing the first multiple access signature M,1 ，A M,2 ，A M,3 ，…，A M,N ，A M-1,1 ，A M-1,2 ，A M-1,3 ，…，A M-1,N ，A 1,1 ，A 1,2 ，…，A 1,N Sequentially mapped in the time frequencyWithin REs of a resource block, wherein occupation of REs (if any) not allocated to said air-interface resource is avoided.
As one embodiment, the REs not allocated to the first radio Signal are allocated to DMRSs (DeModulation Reference Signal).
As one embodiment, the REs not allocated to the first wireless Signal are allocated to an SRS (Sounding Reference Signal).
As an embodiment, the REs not allocated to the first radio signal are allocated to a PUCCH (Physical Uplink Control Channel).
As an embodiment, the time-frequency Resource Block belongs to a PRB (Physical Resource Block).
As an embodiment, the time-frequency Resource Block belongs to a PRBP (Physical Resource Block Pair).
As one embodiment, M is not greater than 12 and N is not greater than 14.
As an example, said M and said N are equal to 12 and 14, respectively.
Example 7
Embodiment 7 illustrates a first pool and a first set of time-frequency resources, as shown in fig. 7. In fig. 7, a box is a time-frequency resource block, a thick box is a time-frequency resource block to which the first time-frequency resource pool belongs, and a slant-filled box is a time-frequency resource block to which the first time-frequency resource set belongs.
In embodiment 7, there are three cases of the first time-frequency resource pool and the first set of time-frequency resources. In the first case, none of the time-frequency resource blocks in the first set of time-frequency resources belongs to the first set of time-frequency resources. In a second case, all the time-frequency resource blocks in the first set of time-frequency resources belong to the first set of time-frequency resources. In a third case, there is at least one time-frequency resource block in the first set of time-frequency resources belonging to the first set of time-frequency resources and another time-frequency resource block not belonging to the first set of time-frequency resources.
Example 8
Embodiment 8 illustrates a first multiple access signature in the present application, as shown in fig. 8.
In embodiment 8, the modulation symbols are spread and scrambled prior to transmission, and the first multiple access signature comprises a first spreading sequence for spreading and a first scrambling sequence for scrambling.
In one embodiment, the first spreading sequence is a Walsh code sequence.
In one embodiment, the first spreading sequence is a Zadoff-Chu sequence.
In one embodiment, the first spreading sequence is a sparse sequence.
In one embodiment, the first spreading sequence is one of a set of orthogonal sequences.
In one embodiment, the first spreading sequence is one of a set of non-orthogonal sequences.
As an embodiment, the first scrambling sequence is a pseudo-random sequence.
As an embodiment, the first scrambling sequence is an m-sequence.
As an embodiment, the first scrambling sequence is a Gold sequence.
As an embodiment, the identification of the user equipment in the present application is used for generating said first spreading sequence.
As an embodiment, the identification of the user equipment in the present application is used for generating said first scrambling sequence.
Example 9
Embodiment 9 illustrates a first bit block in the present application, as shown in fig. 9.
In embodiment 9, the first bit block is divided into L bit fields, and the first bit field and the second bit field in the present application are two fields among the L bit fields. The value of a bit string in a bit field is used to indicate the information to which the bit field corresponds. The first bit block is a downlink control information bit block for uplink grant. The second bit field is used to indicate resource blocks included in the first set of time-frequency resources in the present application. The first bit block is transmitted on a physical downlink control channel. A first wireless signal in this application is transmitted on the first set of time and frequency resources.
As an embodiment, if a first set of time-frequency resources in the present application is orthogonal to the first time-frequency resource pool, the first bit domain is used to indicate a first multi-antenna solution and the first multi-antenna solution is used to transmit the first wireless signal; the first bit field is used to indicate a second multi-antenna solution and the second multi-antenna solution is used to transmit the first wireless signal if the first set of time frequency resources overlaps the first pool of time frequency resources.
As an example, if a first set of time-frequency resources in the present application is orthogonal to the first pool of time-frequency resources, the first bit field is used to indicate a first multi-antenna solution and the first multi-antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in the code domain if the first set of time-frequency resources overlaps the first pool of time-frequency resources.
Example 10
Embodiment 10 illustrates a first multiple antenna solution and a second multiple antenna solution in the present application, as shown in fig. 10.
In embodiment 10, the first multi-antenna solution and the second multi-antenna solution generate a first transmission beam and a second transmission beam, respectively. The first transmit beam and the second transmit beam are different.
As an embodiment, different sets of spatial transmission parameters are used for generating the first and second transmission beams.
As an embodiment, different sets of spatial reception parameters are used for generating a first reception beam and a second reception beam for receiving reference signals transmitted through the first transmission beam and the second transmission beam, respectively.
As an embodiment, the first and second transmit beams are in different directions.
As an embodiment, the first and second transmission beams have different widths.
As an embodiment, a first receive beam and a second receive beam are used by a base station in the present application to receive a first reference signal group transmitted by the first multi-antenna solution and a second reference signal group transmitted by the second multi-antenna solution, respectively, where the first receive beam and the second receive beam are different, and the first reference signal group and the second reference signal group are different.
As an embodiment, a first transmission beam and a second transmission beam are used by a user equipment in the present application to respectively transmit a first reference signal group transmitted by the first multi-antenna technical scheme and a second reference signal group transmitted by the second multi-antenna technical scheme, where the first reference signal group and the second reference signal group are different.
Example 11
Embodiment 11 illustrates Q1 sub-pools of time-frequency resources, as shown in fig. 11.
In embodiment 11, the first time-frequency resource pool in this application is divided into 4 time-frequency resource sub-pools, where Q1 is equal to 4 in this application. The 4 time frequency resource sub-pools respectively correspond to 4 beam groups. A first time-frequency resource set in the application belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools. The second multi-antenna solution in the application relates to the position of the first time-frequency resource sub-pool in the Q1 time-frequency resource sub-pools, and the second multi-antenna solution uses one of the beams corresponding to the first time-frequency resource sub-pool.
As an embodiment, the first time-frequency resource sub-pool is a time-frequency resource sub-pool #2, and the second multi-antenna solution employs a beam #3 or a beam #4.
Example 12
Embodiment 12 illustrates a schematic diagram of an antenna port group for transmitting a wireless signal in the present application, as shown in fig. 12.
In fig. 12, 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. The mapping coefficients of the multiple 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. 12: 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.
As a sub-embodiment, one antenna port group includes one antenna port. For example, the antenna port group #0 in fig. 12 includes one antenna port.
As an additional embodiment of the foregoing sub-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.
As a sub-embodiment, one antenna port group includes a plurality of antenna ports. For example, the antenna port group #1 in fig. 12 includes a plurality of antenna ports.
As an additional embodiment of the above sub-embodiment, the plurality of antenna ports correspond to the same analog beamforming matrix and different digital beamforming vectors.
As a sub-embodiment, the antenna ports in different antenna port groups correspond to different analog beamforming matrices.
As a sub-embodiment, any two antenna ports in one antenna port group are QCL.
As a sub-embodiment, any two antenna ports in one antenna port group are spatial QCL.
Example 13
Embodiment 13 illustrates a block diagram of a processing device in a UE, as shown in fig. 13. In fig. 13, the UE processing apparatus 1300 mainly comprises a first receiver module 1301, a second receiver module 1302 and a third transmitter module 1303.
The first receiver module 1301 receives a first control signal; the second receiver module 1302 receives the second control signal and the third transmitter module 1303 transmits the first wireless signal.
In embodiment 13, the first control signal indicates a first time-frequency resource pool; a first bit block is used to generate the second control signal, the first bit block comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources; if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multiple antenna solution and the first multiple antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multi-antenna solution and the second multi-antenna solution is used to transmit the first wireless signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in the code domain.
As a sub-embodiment, the first receiver module 1301 includes the receiver 456 and the receiving processor 452 in embodiment 4.
As a sub-embodiment, the second receiver module 1302 includes the receiver 456 and the receiving processor 452 in embodiment 4.
As a sub-embodiment, the third transmitter module 1303 includes the transmitter 456 and the transmitting processor 455 in embodiment 4.
For an embodiment, the first receiver module 1301, the second receiver module 1302 and the third transmitter module 1303 all include the antenna 460 in embodiment 4.
For one embodiment, the first receiver module 1301, the second receiver module 1302, and the third transmitter module 1303 all include the controller/processor 490 of embodiment 4.
As a sub-embodiment, if the ue does not receive an indication to transmit data on time-frequency resources in the first time-frequency resource pool, the ue may autonomously decide whether to transmit data on time-frequency resources in the first time-frequency resource pool.
As a sub-embodiment, the first bit field in the second control signal is used to determine a first multiple access signature group to which the first multiple access signature belongs.
As a sub-embodiment, the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
As a sub-embodiment, the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used to indicate the second multi-antenna solution from the second transmission configuration table.
As a sub-embodiment, the first receiver module 1301 receives a third control signal; wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
Example 14
Embodiment 14 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 14. In fig. 14, a base station device processing apparatus 1400 is mainly composed of a first transmitter module 1401, a second transmitter module 1402 and a third receiver module 1403.
The first receiver module 1401 receives a first control signal; the second receiver module 1402 receives the second control signal; the third transmitter module 1403 transmits the first wireless signal in the first set of time-frequency resources.
In embodiment 14, the first control signal indicates a first time-frequency resource pool; a first bit block is used to generate the second control signal, the first bit block comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources; if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multi-antenna solution and the first multi-antenna solution is used to transmit the first wireless signal; the first bit field in the second control signal is used to indicate a second multi-antenna solution and the second multi-antenna solution is used to transmit the first wireless signal if the first set of time-frequency resources overlaps the first pool of time-frequency resources, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in the code domain.
As a sub-embodiment, the first transmitter module 1401 includes the transmitter 416 and the transmitting processor 415 in embodiment 4.
As a sub-embodiment, the second transmitter module 1402 includes the transmitter 416 and the transmitting processor 415 in embodiment 4.
As a sub-embodiment, the third receiver module 1403 includes the receiver 416 and the receiving processor 412 in embodiment 4.
As a sub-embodiment, the first transmitter module 1401, the second transmitter module 1402 and the third receiver module 1403 all comprise the antenna 420 of embodiment 4.
As a sub-embodiment, the first transmitter module 1401, the second transmitter module 1402 and the third receiver module 1403 all comprise the controller/processor 440 of embodiment 4.
As a sub-embodiment, if the receiver of the first control signal does not receive an indication to transmit data on time-frequency resources within the first time-frequency resource pool, the receiver of the first control signal may autonomously decide whether to transmit data on time-frequency resources within the first time-frequency resource pool.
As a sub-embodiment, the first bit field in the second control signal is used to determine a first multiple access signature group to which the first multiple access signature belongs.
As a sub-embodiment, the first time-frequency resource pool includes Q1 time-frequency resource sub-pools, the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
As a sub-embodiment, the first control signal indicates a second transmission configuration table, and the first bit field in the second control signal is used to indicate the second multi-antenna solution from the second transmission configuration table.
As a sub-embodiment, the first transmitter module 1401 transmits a third control signal; wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
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 aircraft, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, on-vehicle Communication equipment, wireless sensor, the network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication) terminal, EMTC (enhanced MTC) terminal, the data card, the network card, on-vehicle 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 (transmit 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 (24)

1. A method in a user equipment used for wireless communication, comprising:
receiving a first control signal, wherein the first control signal indicates a first time-frequency resource pool;
receiving a second control signal, a first block of bits being used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources;
transmitting a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; if the first set of time-frequency resources overlaps the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first wireless signal, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in a code domain; the first multi-antenna technical scheme and the second multi-antenna technical scheme adopt different space transmission parameters.
2. The method of claim 1, wherein if the UE does not receive an indication to transmit data on the time-frequency resources in the first time-frequency resource pool, the UE autonomously decides whether to transmit data on the time-frequency resources in the first time-frequency resource pool.
3. Method according to claim 1 or 2, characterized in that the first bit field in the second control signal is used for determining a first multiple access signature group to which the first multiple access signature belongs.
4. The method according to claim 1 or 2, wherein the first time-frequency resource pool comprises Q1 time-frequency resource sub-pools, and wherein the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, which is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
5. The method according to claim 1 or 2, wherein the first control signal indicates a second transmission configuration table, and wherein the first bit field in the second control signal is used to indicate the second multi-antenna scheme from the second transmission configuration table.
6. The method according to claim 1 or 2, comprising:
receiving a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
7. A method in a base station device used for wireless communication, comprising:
sending a first control signal, wherein the first control signal indicates a first time-frequency resource pool;
transmitting a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit-field and a second bit-field, the second bit-field indicating a first set of time-frequency resources;
receiving a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; if the first set of time-frequency resources overlaps the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first wireless signal, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in a code domain; the first multi-antenna technical scheme and the second multi-antenna technical scheme adopt different space transmission parameters.
8. The method of claim 7, wherein if the receiver of the first control signal does not receive an indication to transmit data on time-frequency resources within the first time-frequency resource pool, the receiver of the first control signal may autonomously decide whether to transmit data on time-frequency resources within the first time-frequency resource pool.
9. Method according to claim 7 or 8, characterized in that the first bit field in the second control signal is used for determining a first multiple access signature group to which the first multiple access signature belongs.
10. The method according to claim 7 or 8, wherein the first time-frequency resource pool comprises Q1 time-frequency resource sub-pools, and the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, which is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
11. The method according to claim 7 or 8, wherein the first control signal indicates a second transmission configuration table, and wherein the first bit field in the second control signal is used to indicate the second multi-antenna scheme from the second transmission configuration table.
12. The method according to claim 7 or 8, comprising:
transmitting a third control signal;
wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
13. A user device configured for wireless communication, comprising:
a first receiver module to receive a first control signal, the first control signal indicating a first time-frequency resource pool;
a second receiver module to receive a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first domain of bits and a second domain of bits, the second domain of bits indicating a first set of time-frequency resources;
a third transmitter module that transmits a first wireless signal in a first set of time-frequency resources;
wherein, if the first set of time-frequency resources is orthogonal to the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a first multiple antenna solution and the first multiple antenna solution is used to transmit the first wireless signal; if the first set of time-frequency resources overlaps with the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a second multi-antenna solution and the second multi-antenna solution is used to transmit the first wireless signal, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in the code domain; the first multi-antenna solution and the second multi-antenna solution adopt different spatial transmission parameters.
14. The UE of claim 13, wherein if the UE does not receive an indication to transmit data on the time-frequency resources in the first time-frequency resource pool, the UE can autonomously decide whether to transmit data on the time-frequency resources in the first time-frequency resource pool.
15. The user equipment according to claim 13 or 14, characterized in that the first bit field in the second control signal is used for determining a first multiple access signature group, to which the first multiple access signature belongs.
16. The UE according to claim 13 or 14, wherein the first time-frequency resource pool comprises Q1 time-frequency resource sub-pools, the first set of time-frequency resources belongs to a first time-frequency resource sub-pool, and the first time-frequency resource sub-pool is one of the Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; and Q1 is a positive integer greater than 1.
17. The UE of claim 13 or 14, wherein the first control signal indicates a second transmission configuration table, and wherein the first bit field in the second control signal is used to indicate the second multi-antenna scheme from the second transmission configuration table.
18. The user equipment of claim 13 or 14, wherein the first receiver module receives a third control signal; wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
19. A base station device used for wireless communication, comprising:
a first transmitter module that transmits a first control signal indicating a first time-frequency resource pool;
a second transmitter module to transmit a second control signal, a first block of bits used to generate the second control signal, the first block of bits comprising a first bit field and a second bit field, the second bit field indicating a first set of time-frequency resources;
a third receiver module that receives a first wireless signal in a first set of time-frequency resources;
wherein the first bit field in the second control signal is used to indicate a first multi-antenna scheme and the first multi-antenna scheme is used to transmit the first wireless signal if the first set of time frequency resources is orthogonal to the first pool of time frequency resources; if the first set of time-frequency resources overlaps the first pool of time-frequency resources, the first bit field in the second control signal is used to indicate a second multiple antenna solution and the second multiple antenna solution is used to transmit the first wireless signal, or the first bit field in the second control signal is used to indicate a first multiple access signature and the first wireless signal occupies the first multiple access signature in a code domain; the first multi-antenna technical scheme and the second multi-antenna technical scheme adopt different space transmission parameters.
20. The base station apparatus of claim 19, wherein if the receiver of the first control signal does not receive an indication to transmit data on time-frequency resources in the first time-frequency resource pool, the receiver of the first control signal can autonomously decide whether to transmit data on time-frequency resources in the first time-frequency resource pool.
21. A base station device according to claim 19 or 20, characterized in that said first bit field in said second control signal is used for determining a first multiple access signature group, to which said first multiple access signature belongs.
22. The base station apparatus according to claim 19 or 20, wherein said first time-frequency resource pool comprises Q1 time-frequency resource sub-pools, and said first set of time-frequency resources belongs to a first time-frequency resource sub-pool, which is one of said Q1 time-frequency resource sub-pools; the second multi-antenna solution relates to the position of the first sub-pool of time-frequency resources in the Q1 sub-pools of time-frequency resources; q1 is a positive integer greater than 1.
23. Base station device according to claim 19 or 20, characterized in that said first control signal indicates a second transmission configuration table, said first bit field in said second control signal being used to indicate said second multi-antenna solution from said second transmission configuration table.
24. The base station device of claim 19 or 20, wherein the first transmitter module transmits a third control signal; wherein the third control signal is used to indicate a first transmission configuration table and the first bit field in the second control signal is used to indicate the first multiple antenna solution from the first transmission configuration table.
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