JP2020113990A - Uplink data transmission method and apparatus - Google Patents

Abstract

To provide uplink data transmission method and apparatus capable of reducing delay in decoding processing of uplink data.SOLUTION: An uplink data transmission method includes step of determining M transmission areas representing air interface time-frequency resources allocated to a terminal device and creating first information used to indicate the transmission areas, a step of determining second information used to indicate the transport block size for each transmission area of the M transmission areas, and a step of sending an instruction message including first information and second information to the terminal device such that the terminal device transmits uplink data according to an instruction message.EFFECT: A network device can decode the uplink data on the transmission area according to the transport block size and reduce the processing delay.SELECTED DRAWING: Figure 2

Description

The present invention relates to the field of communications, and more particularly to a method and apparatus for uplink data transmission in the field of communications.

As wireless cellular networks are constantly evolving, Code Division Multiple Access (CDMA) technology and orthogonal are widely applied to third generation (3G) and fourth generation (4G) mobile communication systems. Orthogonal multiple access technologies, such as Orthogonal Frequency Multiple Access (OFDMA) technology, are becoming increasingly inadequate to meet the increasing capacity requirements of people on cellular networks, for example due to high spectral efficiency. It is already inadequate to meet access and continued growth. Non-orthogonal multiple access technology is being researched and developed, and future wireless cellular networks, such as 5G (5G) mobile communication systems, are facing increasing capacity requirements with non-orthogonal multiple access technology. People want to be able to deal effectively.

In another aspect, conventional request-grant based uplink data transmission in a cellular network is typically performed according to the following steps: First, a user uses a particular resource (eg, time-frequency resource). By doing so, the service request is transmitted to the base station. After receiving the service request, the base station grants the user the uplink data transmission according to the data buffer status reported by the user periodically or aperiodically, and allocates resources allocated for use in the uplink transmission. To the user. Finally, the user uses the allocated uplink resource to transmit the uplink data according to the permission information.

In the early stages of the evolution process of cellular networks, the number of terminals increases relatively slowly, and the user delay requirement is relatively low. The conventional request-grant based uplink data transmission method can be widely applied to 3G and 4G systems. However, as application scenarios, terminal types, and application types continue to change, the number of terminals will explode in the future evolution of cellular networks. In certain application scenarios, users also impose higher requirements on network delay. In such a case, the conventional request-grant based uplink data transmission method is no longer applicable due to the relatively long delay and the relatively high signaling overhead.

Compared with the conventional request-grant based uplink data transmission method, in the unlicensed mode transmission method, the user uses a specific resource without having to go through the process from service request to uplink grant by the base station. To send the uplink data immediately. Therefore, the unlicensed mode transmission method has considerable advantages in terms of network delay and signaling overhead. In non-orthogonal multiple access technology, it is possible to send different data streams on the same time-frequency resource using different codebooks, and the receiving end implements error-free decoding of multiple data streams. be able to. Therefore, the unlicensed mode uplink transmission method combined with the non-orthogonal multiple access technology has the potential of being very widely applied in future cellular communication systems (eg 5G).
Currently, the unlicensed mode uplink transmission method in SCMA system is: the base station allocates one contention transmission unit (CTU) to each user. The CTU is defined as the combination of time-frequency resources and SCMA codebook or pilot sequence. If the uplink data needs to be transmitted after the user has reached the uplink synchronization with the base station, the user can immediately create the uplink data by using the SCMA codebook in the corresponding CTU, Immediately create a pilot by using the pilot sequence in the corresponding CTU and send the uplink data and pilot on the time-frequency resources specified by the CTU. The base station decodes user data on possible time-frequency resources by using a blind detection method and by using possible SCMA codebooks and pilot sequences.

Special table 2012-525030 gazette Special table 2011-515047 gazette International Publication No. 2014/135126

However, blind detection has great cost because the base station needs to try the size of all possible transport blocks during decoding in order to perform blind detection on user data. For example, the processing delay is extremely long, further exceeding the transmission delay that can be saved in the non-granted mode transmission method, which has the advantage that the non-granted mode transmission method has a shorter delay than the conventional request-grant based transmission method. Lost.

Embodiments of the present invention provide a method and apparatus for uplink data transmission that can reduce the delay in the decoding process of uplink data.

According to the first aspect,
Determining M transmission areas allocated to the terminal device and creating first information used to indicate the M transmission areas, where M is a positive integer and the transmission area is Creating and representing an air interface time-frequency resource including a time range and a frequency range specified by the communication system,
Determining, for each transmission area of the M transmission areas, second information used to indicate the transport block size;
Sending an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, the instruction message including the first information and the second information, and transmitting. An uplink data transmission method is provided.

With reference to the first aspect, in the first possible implementation of the first aspect, the method comprises:
Further comprising determining at least one codebook-pilot set for each of the M transmission areas and creating third information used to indicate the at least one codebook-pilot set,
The indication message further includes third information, and the codebook-pilot set includes a plurality of codebooks, a plurality of pilot sequences, and a combination relationship between the codebooks and pilot sequences.

With reference to the first possible implementation scheme of the first aspect, in the second possible implementation scheme of the first aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the first aspect, or the first or second possible implementations of the first aspect, in the third possible implementation of the first aspect, the third information is at least one code. Book-Contains the index of the pilot set.

With reference to the first aspect, or any one of the first to third possible implementations of the first aspect, in the fourth possible implementation of the first aspect, the second The information contains information about the transport block size determined for each of the M transmission areas, or the second information is in the transmission area and may be used for transmitting data. It includes information about the determined coding rate for each of the M transmission areas so that the terminal device determines the transport block size according to the number of time-frequency resources, the modulation order, and the coding rate.

With reference to the first aspect, or any one of the first to fourth possible implementations of the first aspect, in the fifth possible implementation of the first aspect, the second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to the first aspect, or any one of the first to fifth possible implementations of the first aspect, in the sixth possible implementation of the first aspect, the method comprises:
Receiving uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is a positive integer less than or equal to M Is to receive,
Decoding the uplink data on the N transmission areas according to the transport block size of the N transmission areas.

With reference to the first aspect, or any one of the first to sixth possible implementations of the first aspect, in the seventh possible implementation of the first aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to the first aspect or any one of the first to seventh possible implementations of the first aspect, in the eighth possible implementation of the first aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

With reference to the first aspect or any one of the first to eighth possible implementations of the first aspect, in the ninth possible implementation of the first aspect, in the terminal device Sending an instruction message is
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Sending an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

According to the second aspect,
Receiving an instruction message sent by a network device, the instruction message including first information and second information, the first information indicating M transmission areas allocated by the network device. The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is the time range specified by the communication system. Receiving, representing an air interface time-frequency resource including a frequency range and
Selecting N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than or equal to M;
Determining the transport block size of each of the N transmission areas according to the second information,
On each transmission area of the N transmission areas, according to the transport block size of each transmission area of the N transmission areas, transmitting uplink data to the network device is provided. It

With reference to the second aspect, in the first possible implementation of the second aspect, the method comprises:
Selecting one constellation-pilot combination from a given constellation-pilot set for each of the N transmission areas, wherein the constellation-pilot set provides a plurality of constellation-pilot combinations. Including, selecting,
Creating an uplink pilot signal according to a pilot sequence within the constellation-pilot combination,
On each transport area of the N transport areas, sending uplink data to the network device according to the transport block size of each transport area of the N transport areas is
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the second aspect, in the second possible implementation manner of the second aspect, the instruction message further includes third information, the third information for each transmission area of the M transmission areas. Used to indicate at least one codebook-pilot set determined by the network device, the codebook-pilot set including a plurality of codebooks, pilot sequences, and a combination relationship between the codebooks and pilot sequences. ,
The method is
Determining at least one codebook-pilot set for each of the N transmission areas according to the third information;
Selecting one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
Creating an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
On each transport area of the N transport areas, sending uplink data to the network device according to the transport block size of each transport area of the N transport areas is
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the second possible implementation scheme of the second aspect, in the third possible implementation scheme of the second aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the second or third possible implementations of the second aspect, in the fourth possible implementation of the second aspect, the third information is the index of at least one codebook-pilot set. including.

With reference to the first possible implementation scheme of the second aspect, in the fifth possible implementation scheme of the second aspect, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

With reference to any one of the second to fourth possible implementations of the second aspect, in the sixth possible implementation of the second aspect, the codebook-pilot combination is Conditions for:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

With reference to the second aspect, or any one of the first to sixth possible implementations of the second aspect, in the seventh possible implementation of the second aspect, the second The information includes information about the coding rate determined by the network device for each of the M transmission areas and determining the transport block size of each transmission area of the N transmission areas according to the second information. Is
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data Including determining the block size.

With reference to any one of the second aspect or the first to sixth possible implementations of the second aspect, the eighth possible implementation of the second aspect provides a second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to any one of the second aspect or the first to the eighth possible implementation schemes of the second aspect, in the ninth possible implementation scheme of the second aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to any one of the second aspect or the first to ninth possible implementation schemes of the second aspect, in the tenth possible implementation scheme of the second aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

According to the third aspect,
A first determination module configured to determine M transmission areas to be allocated to the terminal device and create first information used to indicate the M transmission areas, where M is positive. A first determination module, the transmission area representing an air interface time-frequency resource including a time range and a frequency range specified by the communication system,
For each transmission area of the M transmission areas determined by the first determination module, a second determination module configured to determine second information used to indicate a transport block size,
A transmitting module configured to send an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, the instruction message being a first module determined by the first determining module. And a second module that includes the information and the second information determined by the second determination module.

With reference to the third aspect, in the first possible implementation of the third aspect, the device
Third information used to determine at least one codebook-pilot set for each transmission area of the M transmission areas determined by the first determination module and to indicate the at least one codebook-pilot set Further comprising a second decision module configured to create
The indication message sent by the sending module further comprises third information, and the codebook-pilot set includes a plurality of codebooks, a plurality of pilot sequences, and a combinatorial relationship between codebooks and pilot sequences.

With reference to the first possible implementation scheme of the third aspect, in the second possible implementation scheme of the third aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the third aspect, or the first or second possible implementations of the third aspect, in the third possible implementation of the third aspect, the third information is at least one code. Book-Contains the index of the pilot set.

With reference to the third aspect or any one of the first to third possible implementations of the third aspect, in the fourth possible implementation of the third aspect, the second The information contains information about the transport block size determined for each transmission area of the M transmission areas, or the second information is for the coding rate determined for each transmission area of the M transmission areas. Information, so that the terminal device determines the transport block size according to the number of unit time-frequency resources, modulation order, and coding rate that are in the transmission area and can be used to transmit data. ..

With reference to the third aspect, or any one of the first to fourth possible implementations of the third aspect, in the fifth possible implementation of the third aspect, the second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to the third aspect, or any one of the first to fifth possible implementations of the third aspect, in a sixth possible implementation of the third aspect, the device comprises:
A receiving module configured to receive uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is less than M or A receiving module, which is a positive integer equal to M,
And a decoding module configured to decode the uplink data on the N transmission areas according to a transport block size of the N transmission areas.

With reference to any one of the third aspect or the first to sixth possible implementations of the third aspect, in the seventh possible implementation of the third aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to the third aspect, or any one of the first to seventh possible implementations of the third aspect, in the eighth possible implementation of the third aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

With reference to the third aspect, or any one of the first to eighth possible implementations of the third aspect, in a ninth possible implementation of the third aspect, the transmitter module is , Specifically,
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Configured to send an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

In a third aspect, or any one of the first through ninth possible implementations of the third aspect, in a tenth possible implementation of the third aspect, the device is a network Is a device.

According to the fourth aspect,
Receiving modules configured to receive an instruction message sent by a network device, the instruction message including first information and second information, the first information being M allocated by the network device. Second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is A receiving module representing an air interface time-frequency resource including a time range and a frequency range specified by
A first determination module configured to select N transmission areas from M transmission areas according to the first information, wherein N is a positive integer less than or equal to M, A first decision module,
A second determining module configured to determine a transport block size of the N transmission areas determined by the first determining module according to the second information;
On each transmission area of the N transmission areas determined by the first determination module, to the network device according to the transport block size of each transmission area of the N transmission areas determined by the second determination module. And a transmission module configured to transmit uplink data.

With reference to the fourth aspect, in the first possible implementation scheme of the fourth aspect, the device
A third decision module configured to select one constellation-pilot combination from a given constellation-pilot set for each of the N transmission areas, wherein the constellation-pilot set is A third decision module comprising a plurality of constellation-pilot combinations;
A first generation module configured to generate an uplink pilot signal according to a pilot sequence in the constellation-pilot combination determined by the third determination module,
The transmission module is
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
And transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the fourth aspect, in the second possible implementation manner of the fourth aspect, the instruction message further includes third information, the third information for each transmission area of the M transmission areas. Used to indicate at least one codebook-pilot set determined by the network device, the codebook-pilot set including a plurality of codebooks, pilot sequences, and a combination relationship between the codebooks and pilot sequences. ,
The device is
A fourth determination module configured to determine at least one codebook-pilot set for each transmission area of the N transmission areas according to the third information;
A fifth decision module configured to select one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
A second generation module configured to generate an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
The transmission module is
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
And transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the second possible implementation scheme of the fourth aspect, in the third possible implementation scheme of the fourth aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the second or third possible implementations of the fourth aspect, in the fourth possible implementation of the fourth aspect, the third information is the index of at least one codebook-pilot set. including.

With reference to the first possible implementation scheme of the fourth aspect, in the fifth possible implementation scheme of the fourth aspect, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

In the sixth possible implementation of the fourth aspect, with reference to any one of the second to fourth possible implementations of the fourth aspect, the codebook-pilot combination is Conditions for:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

With reference to any one of the fourth aspect or the first to sixth possible implementations of the fourth aspect, in the seventh possible implementation of the fourth aspect, the second aspect The information may include information about the transport block size determined by the network device for each of the M transmission areas or the second information may be for the transmission area of each of the M transmission areas by the network device. Determining the transport block size of each transmission area of the N transmission areas according to the second information, including information about the determined coding rate,
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data Including determining the block size.

With reference to the fourth aspect, or any one of the first to sixth possible implementations of the fourth aspect, in the eighth possible implementation of the fourth aspect, the second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to the fourth aspect, or any one of the first to eighth possible implementations of the fourth aspect, in the ninth possible implementation of the fourth aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to any one of the fourth aspect or the first to ninth possible implementations of the fourth aspect, in the tenth possible implementation of the fourth aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

With reference to the fourth aspect, or any one of the first to tenth possible implementations of the fourth aspect, in the eleventh possible implementation of the fourth aspect, the apparatus is a terminal Is a device.

According to a fifth aspect, there is provided an uplink data transmission device including a processor, a memory, a bus system and a transceiver, wherein the processor, the memory and the transceiver are connected by using the bus system, and the memory is A processor configured to store the instructions, the processor configured to execute the instructions stored in the memory to control and signal the transceiver.
The processor is to determine M transmission areas allocated to the terminal device and create first information used to indicate the M transmission areas, where M is a positive integer and the transmission Used to create an area, which represents an air interface time-frequency resource that includes the time range and frequency range specified by the communication system, and for each transport area of the M transport areas, to indicate the transport block size. Configured to determine the second information to be
The transceiver is for sending an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, the instruction message including the first information and the second information. Configured to do.

With reference to the fifth aspect, in the first possible implementation of the fifth aspect, the processor
Determining at least one codebook-pilot set for each of the M transmission areas and creating a third information used to indicate the at least one codebook-pilot set, wherein: A book-pilot set is further configured to create, including a plurality of codebooks, a plurality of pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The instruction message sent by the transceiver further includes third information.

With reference to the first possible implementation scheme of the fifth aspect, in the second possible implementation scheme of the fifth aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the fifth aspect, or the first or second possible implementations of the fifth aspect, in the third possible implementation of the fifth aspect, the third information is at least one code. Book-Contains the index of the pilot set.

With reference to the fifth aspect, or any one of the first to third possible implementations of the fifth aspect, in the fourth possible implementation of the fifth aspect, the second The information contains information about the transport block size determined for each transmission area of the M transmission areas, or the second information is for the coding rate determined for each transmission area of the M transmission areas. Information, so that the terminal device determines the transport block size according to the number of unit time-frequency resources, modulation order, and coding rate that are in the transmission area and can be used to transmit data. ..

With reference to any one of the fifth aspect or the first to fourth possible implementations of the fifth aspect, in the fifth possible implementation of the fifth aspect, the second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to the fifth aspect, or any one of the first to fifth possible implementations of the fifth aspect, in a sixth possible implementation of the fifth aspect, the transceiver comprises:
Receiving uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is a positive integer less than or equal to M Is further configured to do the receiving,
The processor is
It is further configured to decode the uplink data on the N transmission areas according to the transport block size of the N transmission areas.

With reference to the fifth aspect, or any one of the first to sixth possible implementations of the fifth aspect, in the seventh possible implementation of the fifth aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to the fifth aspect, or any one of the first to seventh possible implementations of the fifth aspect, in the eighth possible implementation of the fifth aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

With reference to the fifth aspect, or any one of the first to eighth possible implementations of the fifth aspect, in a ninth possible implementation of the fifth aspect, a terminal is provided by a transceiver. Sending an instruction message to the device
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Sending an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

In the fifth aspect, or any one of the first to ninth possible implementations of the fifth aspect, in the tenth possible implementation of the fifth aspect, the device is a network Is a device.

According to a sixth aspect, there is provided an uplink data transmission device including a processor, a memory, a bus system and a transceiver, wherein the processor, the memory and the transceiver are connected by using the bus system, and the memory is And a processor configured to execute the instructions stored in the memory to control and signal the transceiver.
Transceiver
Receiving an instruction message sent by a network device, the instruction message including first information and second information, the first information indicating M transmission areas allocated by the network device. The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is the time range specified by the communication system. And representing an air interface time-frequency resource including a frequency range and configured to perform receiving,
The processor is
Selecting N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than or equal to M;
And determining a transport block size of each transmission area of the N transmission areas according to the second information,
The transceiver is
On each transport area of the N transport areas, it is further configured to send uplink data to the network device according to a transport block size of each transport area of the N transport areas.

With reference to the sixth aspect, in a first possible implementation of the sixth aspect, the processor
Selecting one constellation-pilot combination from a given constellation-pilot set for each of the N transmission areas, wherein the constellation-pilot set provides a plurality of constellation-pilot combinations. Including, selecting,
And configuring an uplink pilot signal according to a pilot sequence in the constellation-pilot combination,
By the transceiver, on each transmission area of the N transmission areas, transmitting the uplink data to the network device according to the transport block size of each transmission area of the N transmission areas,
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the sixth aspect, in the second possible implementation manner of the sixth aspect, the instruction message further includes third information, the third information for each transmission area of the M transmission areas. Used to indicate at least one codebook-pilot set determined by the network device, the codebook-pilot set including a plurality of codebooks, pilot sequences, and a combination relationship between the codebooks and pilot sequences. ,
The processor is
Determining at least one codebook-pilot set for each of the N transmission areas according to the third information;
Selecting one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
And further forming an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
By the transceiver, on each transmission area of the N transmission areas, transmitting the uplink data to the network device according to the transport block size of each transmission area of the N transmission areas,
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

With reference to the second possible implementation scheme of the sixth aspect, in the third possible implementation scheme of the sixth aspect, the codebook includes two or more codewords, and the codewords are multidimensional complex vectors. And used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the second or third possible implementations of the sixth aspect, in the fourth possible implementation of the sixth aspect, the third information is the index of at least one codebook-pilot set. including.

With reference to the first possible implementation scheme of the sixth aspect, in the fifth possible implementation scheme of the sixth aspect, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

With reference to any one of the second to fourth possible implementations of the sixth aspect, in the sixth possible implementation of the sixth aspect, the codebook-pilot combination is Conditions for:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

With reference to the sixth aspect, or any one of the first to sixth possible implementations of the sixth aspect, in the sixth possible implementation of the seventh aspect, the second The information may include information about the transport block size determined by the network device for each of the M transmission areas or the second information may be for the transmission area of each of the M transmission areas by the network device. Determining the transport block size of each transport area of the N transport areas according to the second information, including information about the determined coding rate, by the processor,
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data Including determining the block size.

With reference to the sixth aspect, or any one of the first through sixth possible implementations of the sixth aspect, in the eighth possible implementation of the sixth aspect, the second The information includes the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is the index of the coding rate determined for each transmission area of the M transmission areas. including.

With reference to the sixth aspect, or any one of the first to eighth possible implementations of the sixth aspect, in the ninth possible implementation of the sixth aspect, the first The information includes time domain information and frequency domain information of each of the M transmission areas.

With reference to the sixth aspect, or any one of the first to ninth possible implementations of the sixth aspect, in the tenth possible implementation of the sixth aspect, the first The information is for indicating a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a resource block of a frequency domain of each transmission area of the M transmission areas. And a second bit string used for.

With reference to the sixth aspect, or any one of the first through tenth possible implementations of the sixth aspect, in the eleventh possible implementation of the sixth aspect, the apparatus is a terminal. Is a device.

Based on the above technical solution, in the case of the method and apparatus for uplink data transmission provided in the embodiments of the present invention, the network device determines at least one transmission area and relevant information about the transport block size. Are assigned to the transmission area, so that the terminal device transmits the uplink data on the transmission area by using the corresponding transport block size. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following briefly describes the accompanying drawings required for describing the embodiments of the present invention or the prior art. Of course, the accompanying drawings in the following description show only some embodiments of the present invention, and a person of ordinary skill in the art may further derive other drawings from these accompanying drawings without creative efforts. ..

1 is a schematic diagram of a communication system applicable to an uplink data transmission method according to an embodiment of the present invention. 3 is a schematic flowchart of an uplink data transmission method according to an embodiment of the present invention. FIG. 3 is a schematic diagram of a transmission area according to an embodiment of the present invention. FIG. 6 is a schematic diagram of a SCMA bit mapping process according to an embodiment of the present invention. 3 is a schematic flowchart of an uplink data transmission method according to an embodiment of the present invention. 3 is a schematic flowchart of an uplink data transmission method according to an embodiment of the present invention. 3 is a schematic flowchart of an uplink data transmission method according to an embodiment of the present invention. 1 is a schematic block diagram of an uplink data transmission device according to an embodiment of the present invention. 1 is a schematic block diagram of an uplink data transmission device according to an embodiment of the present invention. 1 is a schematic block diagram of an uplink data transmission device according to an embodiment of the present invention. 1 is a schematic block diagram of an uplink data transmission device according to an embodiment of the present invention.

Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and fully with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

As used herein, predicates such as “component,” “module,” and “system” refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software that is being executed. Used to represent For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable file, a thread of execution, a program, and/or a computer. As shown, both the computing device and the application running on the computing device can be a component. One or more components may reside within a process and/or thread of execution, a component may be located on one computer and/or distributed between two or more computers. There are cases where In addition, these components may execute from various computer readable media having various data structures stored thereon. For example, a component may use local and/or remote processes, and, for example, one or more data packets (eg, in local systems, distributed systems, and/or by using signals). Communication may occur over a network, such as the Internet, that interacts with other systems, according to signals having data from two components that interact with another component).

Embodiments of the invention are described by using a terminal device. The terminal device is a user equipment (UE, User Equipment) user equipment, access terminal, user unit, user station, mobile site, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent. , Or user equipment. The access terminal has a mobile phone, a cordless phone, a SIP (Session Initiation Protocol) session, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant, personal digital assistant), and a wireless communication function. It can be a handheld device, a computing device, another processing device connected to a wireless modem, an in-vehicle device, a wearable device, or a terminal device in a future 5G network.

Additionally, embodiments of the present invention are described by using network devices. The network device may be a base station or another device configured to communicate with the mobile device. Can the base station be a BTS (Base Transceiver Station) in GSM (Global System of Mobile communication) or CDMA (Code Division Multiple Access)? , Or NB (NodeB, Node B) in WCDMA (Wideband Code Division Multiple Access), or eNB or eNodeB in LTE (Long Term Evolution) (Evolutional Node B), or a relay station or access point, or an in-vehicle device, a wearable device, or a network device in a future 5G network.

In addition, aspects or features of the present invention may be implemented as a method, apparatus, or product using standard programming and/or engineering techniques. The term "product" as used in this application includes computer programs that can be accessed from any computer-readable component, carrier wave, or medium. For example, computer readable media include, but are not limited to, magnetic storage components (eg, hard disk, floppy disk, or magnetic tape), optical disks (eg, CD (Compact Disk), DVD (Digital Versatile Disk, digital). Versatile disks), smart cards, and flash memory components (eg EPROM (Erasable Programmable Read-Only Memory), cards, sticks, or key drives). Various storage media described herein may refer to one or more devices and/or other machine-readable media used to store information. It may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

FIG. 1 is a schematic diagram of a communication system 100 applicable to an uplink data transmission method according to an embodiment of the present invention. As shown in FIG. 1, communication system 100 includes network device 102. Network device 102 may include multiple antenna groups. Each antenna group may include multiple antennas. For example, one antenna group may include antennas 104 and 106, another antenna group may include antennas 108 and 110, and a further antenna group may include antennas 112 and 114. In FIG. 1, two antennas are shown within each antenna group. However, more or less antennas can be used within each group. The network device 102 may further include a transmitter chain and a receiver chain, both the transmitter chain and the receiver chain having multiple components (eg, processor, modulator, modulator, etc.) related to transmitting and receiving signals. Those skilled in the art will understand that they may include multiplexers, demodulators, demultiplexers, and antennas.

Network device 102 may communicate with multiple terminal devices (eg, terminal device 116 and terminal device 122). However, it should be appreciated that network device 102 may communicate with any number of terminal devices similar to terminal devices 116 or 122. Terminal devices 116 and 122 implement communications over, for example, cell phones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or wireless communication systems 100. Can be any other suitable device configured to.

As shown in FIG. 1, terminal device 116 communicates with antennas 112 and 114, which transmit information to terminal device 116 by using forward link 118 and reverse link 120. To receive information from the terminal device 116. In addition, terminal device 122 communicates with antennas 104 and 106, which transmit information to terminal device 122 by using forward link 124 and by using reverse link 126. Receive information from device 122.

For example, in a Frequency Division Duplex (FDD) system, the forward link 118 may use a different frequency band than the frequency band used by the reverse link 120 and the forward link 124 may A frequency band different from the frequency band used by the reverse link 126 may be used.

As another example, in Time Division Duplex (TDD) and Full Duplex systems, the forward link 118 and the reverse link 120 may use a common frequency band. Yes, forward link 124 and reverse link 126 can use a common frequency band.

Each group or area of antennas, or both, designed to perform communication is referred to as a sector of network device 102. For example, antenna groups may be designed to communicate with terminal devices within a sector of coverage of network device 102. In the process in which network device 102 uses forward links 118 and 124 to communicate with terminal devices 116 and 122, respectively, the transmit antenna of network device 102 uses beamforming to forward links 118 and 124. The signal to noise ratio can be improved. In addition, the network device 102 uses beamforming to randomize within its associated coverage, compared to the way the network device signals all terminal devices of the network device by using a single antenna. When signaling end-to-end terminal devices 116 and 122, the interference caused to mobile devices in adjacent cells is relatively small.

Within a given time, the network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitter and/or wireless communication receiver. When transmitting data, the wireless communication transmitting device may encode the data to transmit the encoded data. Specifically, the wireless communication transmitting device obtains (eg, creates, receives from another communication device, or stores in memory) a particular number of data bits that need to be transmitted over the channel to the wireless communication receiving device. )can do. Such data bits may be included in a transport block (or multiple transport blocks) of data, and the transport block may be segmented to create multiple codebooks.

FIG. 2 is a schematic flowchart of an uplink data transmission method 200 according to an embodiment of the present invention. As shown in FIG. 2, method 200 may be performed by a network device, eg, a base station. Method 200 includes:

S201: Determine M transmission areas allocated to the terminal device, create first information used to indicate the M transmission areas, M is a positive integer, and the transmission area is a communication system. Represents an air interface time-frequency resource that includes a time range and a frequency range specified by

S202: Determine, for each of the M transmission areas, the second information used to indicate the transport block size.

S203: Send an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, and the instruction message includes the first information and the second information.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is determined and relevant information about transport block size is assigned to the transmission area, so that the terminal device is The uplink data is transmitted on the transmission area by using the corresponding transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

First, the "transmission area" referred to in this embodiment of the invention will be described. A transmission area in this embodiment of the invention may represent an air interface time-frequency resource that includes a time range and a frequency range specified by the communication system. The air interface time-frequency resources may not be allowed only for certain terminal devices, and instead, non-specific terminal devices may perform unlicensed mode uplink data transmission on the air interface time-frequency resources. May be allowed. In the unlicensed mode uplink data transmission method, a terminal device immediately transmits uplink data using a specific time-frequency resource without having to go through a process from a service request to an uplink grant by a network device. be able to. Indeed, those skilled in the art will appreciate that the "transmission area" may be referred to by another name. As shown in FIG. 3, in the same communication system, there may be multiple transmission areas and any two different transmission areas may overlap in time range or in frequency range. In some cases, they cannot overlap in both time and frequency ranges. That is, no two different transmission areas can overlap in the area formed in the two-dimensional coordinate space.

In addition, "data" in this embodiment of the invention is the signal transmitted over the air interface, the symbol created after the constellation modulation is performed, the symbol created after the codebook modulation is performed. , Bitstream, or another form of signal. For simplicity, the aforementioned signals and symbols in this embodiment of the invention are collectively referred to as data.

Specifically, determining the transmission area allocated to the terminal by the network device in S201 may refer to determining time resources and frequency resources of the transmission area that can be used by the terminal device, and is used by the terminal device. The number of transmission areas that can be done is M. In some cases, in one embodiment, the first information created by the network device includes time domain information and frequency domain information for each of the M transmission areas. That is, the first information used to indicate the M transmission areas may be created according to the time resources and frequency resources of the M transmission areas allocated to the terminal by the network device. The first information may be time resources and frequency resources, or may be, for example, a sequence number/identifier/index indicating time resources and frequency resources. The network device may determine one transmission area for the terminal device, or may determine multiple transmission areas for the terminal device, and in this embodiment of the invention, The number is not limited.

In S202, determining, for each transmission area of the M transmission areas, the second information used to indicate the transport block size is used to calculate the transport block size or the transport block size. Assigned coding rate to each transmission area. That is, each transmission area is associated with an assigned transport block size, or an assigned coding rate used to calculate the transport block size. When the terminal device and the network device respectively send and receive uplink data on the transmission area, the terminal device and the network device use the transport block size or coding rate assigned to the transmission area. In general, a network device may allocate a transport block size or a coding rate used to calculate a transport block size to each transmission area, or it may allocate multiple transport block sizes or transport block sizes. Multiple coding rates used to calculate size can be assigned to each transmission area. The transport block size or the coding rate used to calculate the transport block size assigned to different transmission areas by the base station may be the same or different. This is not limiting in this embodiment of the invention. The second information may be a transport block size or coding rate, or a sequence number/identifier/index indicating a transport block size or coding rate. This is not limiting in this embodiment of the invention.

In S203, the network device transmits an instruction message including the first information and the second information to the terminal device. That is, the network device informs the terminal device of the M transmission areas allocated to the terminal device and the second information regarding the transport block size of each transmission area of the M transmission areas, and as a result, the terminal device Transmits uplink data according to the instruction message. Specifically, the terminal device selects N transmission areas from the M transmission areas, and transmits each of the N transmission areas according to the transport block size corresponding to each transmission area of the N transmission areas. Uplink data can be transmitted on the area.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is determined and relevant information about transport block size is assigned to the transmission area, so that the terminal device is The uplink data is transmitted on the transmission area by using the corresponding transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In some cases, in one embodiment, the second information comprises information about a transport block size determined for each of the M transmission areas, or the second information is in the transmission area. Yes, and for each transmission area of the M transmission areas such that the terminal device determines the transport block size according to the number of unit time-frequency resources that can be used to transmit data, the modulation order, and the coding rate. It contains information about the determined coding rate.

Specifically, the network device can inform the terminal device of the transport block size determined for each transmission area in the form of an explicit instruction. For example, the network device sends information about the transport block size directly to the terminal device. The network device may further inform the terminal device of the transport block size determined for each transmission area in the form of an implicit indication. For example, the network device sends information about the coding rate to the terminal device. The terminal device may calculate the transport block size according to the coding rate. For example, the terminal device may determine the transport block size according to the number of unit time-frequency resources, modulation order, and coding rate that are within the transmission area and may be used to transmit data. The number of unit time-frequency resources used for transmitting data and the modulation order may be preset in the communication system and configured on the network device and the terminal device, or by the network device the terminal device. May be notified or may be obtained by the terminal device by using another device, which is not limiting in this embodiment of the invention. The specific calculation method may be as follows.

Transport block size = unit time that is within the transmission area and may be used to transmit data-number of frequency resources * modulation order * coding rate / codeword (applicable to systems where codebook modulation is used) Total number of elements in or transport block size = unit time within transmission area that can be used to transmit data-number of frequency resources * modulation order * (applies to systems where constellation modulation is used Possible) coding rate. Unit time-frequency resource refers to the minimum time-frequency resource used to transmit one modulation symbol, for example, Orthogonal Frequency Division Multiplexing (OFDM) system resource element (Resource Element, RE). The modulation order may be acquired according to the number of codewords included in the codebook or the number of constellation points included in the modulation constellation. The number of unit time-frequency resources that are in the transmission area and can be used to transmit data is the number of all unit time-frequency resources included in the transmission area, (Eg, pilot and hybrid automatic repeat reQuest (HARQ) information) obtained by subtracting the number of unit time-frequency resources used to send.

In some cases, in one embodiment, sending the instruction message to the terminal device in S203 comprises:
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Sending an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

Specifically, the method of carrying and delivering the instruction message sent by the network device to the terminal device may be, but is not limited to, the following several methods.

For example, the instruction message is delivered in a broadcast channel carrying manner. For example, the instruction message is carried in system information (SI) by using a broadcast channel (BCH) in the LTE system, and the instruction message is one of the terminal devices served by the network device. To be broadcast to all or some of them.

As another example, the instruction message is delivered in a dedicated control channel carrying scheme. For example, the instruction message is carried in a Radio Resource Control Reconfiguration (RRCR) message by using a dedicated control channel (DCCH) in the LTE system, and the instruction message is a network device. Unicast to one particular terminal device or one particular group of terminal devices served by.

In some cases, in one embodiment, the method in this embodiment of the invention may be applicable to non-orthogonal multiple access techniques, eg SCMA techniques. When method 200 is applicable to non-orthogonal multiple access techniques, method 200
Further comprising determining at least one codebook-pilot set for each of the M transmission areas and creating third information used to indicate the at least one codebook-pilot set,
The indication message further includes third information, and the codebook-pilot set includes a plurality of codebooks, a plurality of pilot sequences, and a combination relationship between the codebooks and pilot sequences.

Before describing this embodiment in detail, the SCMA and codebook-pilot set involved in this embodiment will first be described in detail.

SCMA is a non-orthogonal multiple access technology. In this technique, a codebook is used to transmit multiple different data streams on the same resource unit (that is, the same resource unit is reused for multiple different data streams), and different codebooks have different data streams. Used for streams, which achieves the goal of improving resource utilization. The data streams may come from the same user equipment or different user equipment.

The codebook used in SCMA is a set of two or more codewords.

Codewords may be represented as multidimensional complex vectors. Multidimensional complex vectors have more than one dimension and are used to represent mapping relationships between data and more than one modulation symbol. The modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol, and the data can be binary bit data or m-ary data.

A codebook contains two or more codewords, which may be different from each other. The codebook can represent a mapping relationship between possible data combinations with a particular length and codewords in the codebook.

In SCMA technology, in order to implement the spreading of data over multiple resource units, the data in a data stream is directly mapped to codewords, i.e. multidimensional complex vectors, in a codebook according to certain mapping relationships. .. The data herein may be binary bit data or m-ary data. The plurality of resource units may be resource units in the time domain, frequency domain, spatial domain, time-frequency domain, space-time domain, and time-frequency space domain.

The functional sequences herein correspond to codebooks and include zero and one elements. A zero element indicates that the codeword in the corresponding codebook has all zeros at the corresponding position of the zero element. An element indicates that the elements in the corresponding position of the element of the codeword in the corresponding codebook are not all zero, or none of the elements are zero. Two or more functional sequences form a functional matrix. It should be understood that SCMA is just a name, and that other names may be used in the art to describe that technology.

Codewords used in SCMA may have a particular sparseness. For example, in a codeword, the number of zero elements may not be less than the number of non-zero elements, so that the receiving end uses multi-user detection techniques to perform relatively low complexity decoding. be able to. The above-mentioned relationship between the number of zero elements and the modulation symbol is here only an illustration of an example of sparseness, and the invention is not so limited. The ratio of the number of zero elements to the number of non-zero elements may be set arbitrarily according to requirements.

An SCMA system may be used as an example of the communication system 100 described above. In system 100, multiple users reuse the same time-frequency resource blocks to perform data transmission. Each resource block contains several resource REs. The RE herein may be a subcarrier-symbol unit in OFDM technology, or a resource unit in the time domain or frequency domain in another air interface technology. For example, in a SCMA system with L terminal devices, the available resources are divided into several orthogonal time-frequency resource blocks. Each resource block contains U REs, which may be co-located in the time domain. When the terminal device #L transmits data, the data to be transmitted is first divided into S-bit sized data blocks. Modulation symbol sequence including a U modulation symbols X # L = {X # L 1, X # L 2,. ． ． , X # L _U }, a codebook (codebook determined by the network device and delivered to the terminal device) is searched to map each data block. Each modulation symbol in the sequence corresponds to one RE in the resource block. Then, a signal waveform is created according to the modulation symbol. For S-bit sized data blocks, each codebook contains 2S different modulation symbol groups, and 2S different modulation symbol groups correspond to 2S possible data blocks.

The above codebook is sometimes referred to as the SCMA codebook and is the SCMA codeword set. An SCMA codeword is a mapping relationship from information bits to modulation symbols. That is, the SCMA codebook is a set of the above mapping relationships.

In addition, the SCMA, a group of modulation symbols corresponding to each terminal device X # k = {X # k 1, X # k 2,. ． ． , X # k _L }, at least one symbol is a zero symbol and at least one symbol is a non-zero symbol. That is, for the data of one terminal device, only some of the L REs (at least one RE) carry the data of the terminal device.

FIG. 4 is a schematic diagram of SCMA bit mapping processing (or encoding processing) in an example in which four resource units are reused for six data streams. The schematic is a bipartite graph. As shown in FIG. 4, six data streams form one group and four resource units form one coding unit. One resource unit may be one subcarrier, one RE, or one antenna port.

In FIG. 4, the connecting line between the data stream and the resource unit is non-zero on the resource unit after at least one data combination of the data stream is present and codeword mapping has been performed on the data combination. Indicates that modulation symbols are transmitted. When there is no connecting line between the data stream and the resource unit, it means that after the codeword mapping has been performed on all possible data combinations of the data stream, all the modulation symbols transmitted on the resource unit are Represents zero. The combination of data in the data stream may be understood according to the description below. For example, in a binary bit data stream, 00, 01, 10, and 11 are all possible 2-bit data combinations.

For ease of explanation, s1 to s6 are used to sequentially represent the combination of data to be transmitted in the six data streams in FIG. 4, and the symbols transmitted on the four resource units in FIG. X1 to x4 are used to represent in order. The connecting line between the data stream and the resource unit represents that modulation symbols are transmitted on the resource unit after the data of the data stream has been spread, the modulation symbols being zero modulation (corresponding to zero elements). It can be a symbol or a non-zero modulation symbol (corresponding to a non-zero element). When there is no connecting line between the data stream and the resource unit, it means that no modulation symbols are transmitted on the resource unit after the data of the data stream has been spread.

As can be seen from FIG. 4, after the codeword mapping is performed on the data of each data stream, modulation symbols are transmitted on two or more resource units. On the other hand, the symbols transmitted on each resource unit are overlays of modulation symbols obtained after codeword mapping has been performed on the data from the two or more data streams. For example, a non-zero modulation symbol may be transmitted on resource unit 1 and resource unit 2 after codeword mapping has been performed on data combination s3 of data stream 3 to be transmitted. The data x3 transmitted on the resource unit 3 is after the individual codeword mappings have been carried out on the combinations s2, s4 and s6 of the data to be transmitted of data stream 2, data stream 4 and data stream 6. 3 is an overlay of acquired non-zero modulation symbols. Since the number of data streams may be larger than the number of resource units, the SCMA system can effectively improve network capacity, including the number of users who can access the system, the spectral efficiency of the system, and so on.

を有し、
対応するコードブックは、通常、以下の形式：

を有し、ここで、
Nは1よりも大きい正の整数であって、1つの符号化ユニットに含まれるリソースユニットの数を表す場合があるか、またはコードワードの長さとして理解される場合があり、Q_mは1よりも大きい正の整数であって、コードブックに含まれるコードワードの数を表し、変調次数に対応する。たとえば、4位相シフトキーイング（QPSK、Quadrature Phase Shift Keying）または4次変調のサンプリング中、Q_mは4であり、qは正の整数であって、1≦q≦Q_mであり、コードブックおよびコードワードに含まれる要素c_nqは複素数であって、c_nqは、
c_nq∈｛0，α＊exp（j＊β）｝、1≦n≦N、1≦q≦Q_m
として数学的に表される場合があり、ここで、
αおよびβは任意の実数であり得るし、NおよびQ_mは正の整数であり得る。 Referring to the above description of the codebook and Figure 4, the codewords in the codebook are usually of the following form:

Have
The corresponding codebook is usually in the following format:

Where, where
N is a positive integer greater than 1 and may represent the number of resource units contained in one coding unit, or may be understood as the length of a codeword, and Q _m is 1 Is a positive integer greater than and represents the number of codewords included in the codebook and corresponds to the modulation order. For example, during sampling of Quadrature Phase Shift Keying (QPSK) or 4th order modulation, Q _m is 4, q is a positive integer, 1 ≤ q ≤ Q _m , and the codebook and The element c _nq contained in the codeword is a complex number, and c _nq is
c _nq ∈ {0, α*exp(j*β)}, 1≦n≦N, 1≦q≦Q _m
May be represented mathematically as
α and β can be any real numbers, and N and Q _m can be positive integers.

Special mapping relationships may be formed between codewords and data in the codebook. For example, the following mapping relationships may be formed between the codewords in the codebook and the 2-bit data combinations of the binary data stream.

に対応する場合があり、
「01」は、コードワード2、すなわち

に対応する場合があり、
「10」は、コードワード3、すなわち

に対応する場合があり、
「11」は、コードワード4、すなわち

に対応する場合がある。 For example, "00" is codeword 1, that is,

May correspond to
"01" is codeword 2, ie

May correspond to
"10" is codeword 3, ie

May correspond to
"11" is codeword 4, i.e.

It may correspond to.

Referring to FIG. 4 above, when a connecting line exists between the data stream and the resource unit, the codebook corresponding to the data stream and the codeword in the codebook should have the following properties: Non-zero modulation symbols are transmitted on corresponding resource units for at least one codeword in the codebook. For example, there is a connecting line between data stream 3 and resource unit 1, and at least one codeword in the codebook corresponding to data stream 3 satisfies c _1,q ≠0, where 1≦ q≦Q _m .

When there is no connecting line between the data stream and the resource unit, the codebook corresponding to the data stream and the codeword in the codebook should have the following properties: for every codeword in the codebook. In contrast, zero modulation symbols are sent on the corresponding resource units. For example, there is no connecting line between data stream 3 and resource unit 3, and any codeword in the codebook corresponding to data stream 3 satisfies c _3,q =0, where 1≦q ≦Q _m .

を有する場合があり、ここで、
c_nq＝α＊exp（j＊β）、1≦n≦2、1≦q≦4であり、αおよびβは任意の実数であり得る。任意のqに対して、1≦q≦4である。c_1，qおよびc_2，qは同時にすべてがゼロではない。q₁およびq₂の少なくとも1つのグループは、

を満たし、ここで、1≦q₁およびq₂≦4である。 In conclusion, when the modulation order is QPSK, the codebook corresponding to data stream 3 in FIG. 4 above has the following format and properties:

May have, where
c _nq =α*exp(j*β), 1≦n≦2, 1≦q≦4, and α and β can be any real numbers. For any q, 1≦q≦4. c _{1, q} and c _{2, q} are not all zero at the same time. At least one group of q ₁ and q ₂ is

Where 1≦q ₁ and q ₂ ≦4.

にマッピングされる。 For example, when the data s3 of the data stream 3 is “10”, the combination of data is a codeword, that is, a four-dimensional complex vector:

Is mapped to.

を有する場合があり、ここで、
r_n，mは機能マトリクス内の要素を表し、mおよびnは自然数であり、ここで、1≦n≦N、1≦m≦Mであり、N行は1つの符号化ユニット内のN個のリソースユニットを個別に表し、M列は再使用されるデータストリームの数を個別に表す。機能マトリクスは普遍的な形式で表現される場合があるが、機能マトリクスは以下の機能を有する場合がある。 Further, in SCMA systems, bipartite graphs may be represented by using a function matrix. The function matrix has the following format:

May have, where
r _{n and m} represent elements in the function matrix, m and n are natural numbers, where 1 ≤ n ≤ N, 1 ≤ m ≤ M, and N rows are N in one coding unit. , And the column M individually represents the number of reused data streams. Although the function matrix may be expressed in a universal format, the function matrix may have the following functions.

(1) The elements r _n,m ∈ {0,1}, 1 ≤ n ≤ N, 1 ≤ m ≤ M, and r _{n, m} =1 in the function matrix are obtained by using the corresponding bipartite graph. As described, it may represent the presence of a connecting line between the mth data stream and the resource unit n, or a codeword on at least one data combination of the mth data stream. It may be understood that a non-zero modulation symbol is obtained after the mapping has been performed, where r _n,m =0 is the m th data, as described by using the corresponding bipartite graph. It may indicate that there is no connecting line between the stream and resource unit n, or a zero modulation symbol after codeword mapping has been performed on all possible data combinations of the mth data stream. It may be understood that only is obtained.

(2) Further, in some cases, the number of 0 elements is not less than the number of 1 elements in the function matrix, and as a result, the characteristic of sparse coding is reflected.

を有する場合がある。 On the other hand, the columns in the function matrix are sometimes called function sequences. The functional sequence has the following representation format:

May have.

Therefore, the functional matrix may be regarded as a matrix formed from a series of functional sequences.

として表される場合がある。 In the case of the example shown in FIG. 4, referring to the functional description of the function matrix described above, the corresponding function matrix is

May be represented as

に対応する機能シーケンスは、

として表される場合がある。 Codebook used for data stream 3 in Figure 4

The function sequence corresponding to

May be represented as

Therefore, as can be considered, the correspondence between codebooks and functional sequences is a one-to-one relationship, ie one codebook uniquely corresponds to one functional sequence. The correspondence between functional sequences and codebooks may be a one-to-many relationship, ie one functional sequence corresponds to one or more codebooks. Therefore, the functional sequence may be considered to correspond to the codebook and include zero and one elements. The position of a zero element indicates that the element at the corresponding position of the zero element in the codeword in the corresponding codebook is all zeros. An element indicates that the elements in the corresponding position of the element of the codeword in the corresponding codebook are not all zero, or none of the elements are zero. The correspondence between functional sequences and codebooks may be determined by using the following two conditions.

(1) Codewords and corresponding functional sequences in the codebook have the same total number of elements.

(2) For the position of any element whose value is 1 in the functional sequence, at least one codeword can be found in the corresponding codebook, so that the element at the same position of the codeword Is not zero. For any element's position in the function sequence whose value is zero, the element at the same position in all codewords in the corresponding codebook is zero.

It should further be appreciated that in SCMA systems, codebooks may be directly represented and stored. For example, the codebook mentioned above or each codeword in the codebook is stored, or only the element in the codeword whose corresponding functional sequence element is 1 is stored. Therefore, during application of the invention, it should be assumed that in a SCMA system both the base station and the user equipment may store some or all of the following predesigned content:

ここで、
r_n，m∈｛0，1｝、1≦n≦N、1≦m≦Mであり、MおよびNは両方とも1よりも大きい整数であり、ここで、Mは再使用されるデータストリームの数を表し、Nは1よりも大きい正の整数であって、1つの符号化ユニットに含まれるリソースユニットの数を表す場合があるか、またはコードワードの長さを表すと理解される場合がある。 (1) One or more SCMA feature matrices:

here,
r _n,m ε{0,1}, 1≦n≦N, 1≦m≦M, where M and N are both integers greater than 1, where M is the reused data stream , Where N is a positive integer greater than 1 and may represent the number of resource units contained in one coding unit or is understood to represent the length of a codeword. There is.

ここで、
1≦m≦Mである。 (2) One or more SCMA functional sequences:

here,
1≦m≦M.

ここで、
Q_m≧2であり、Q_mはコードブックに対応する変調次数である場合があり、各コードブックは1つの次数に対応する場合があり、ここで、Nは1よりも大きい正の整数であって、1つの符号化ユニットに含まれるリソースユニットの数を表す場合があるか、またはコードワードの長さを表すと理解される場合がある。 (3) One or more SCMA codebooks:

here,
Q _m ≧2, Q _m may be the modulation order corresponding to the codebook, and each codebook may correspond to one order, where N is a positive integer greater than 1. Therefore, it may be represented as the number of resource units included in one coding unit, or may be understood as representing the length of a codeword.

It should be understood that the SCMA system described above is only an example of a communication system applicable to the method and apparatus for data transmission of the present invention, and the present invention is not limited thereto. Any other communication system capable of enabling the terminal device to reuse the same time-frequency resource in the same time period to carry out the data transmission falls within the protection scope of the present invention.

Codebook-The codebook in the SCMA system is used as an example below to describe the pilot set in detail. That is, the codebook is a sparse code multiple access SCMA codebook. A codebook contains two or more codewords, which are multidimensional complex vectors and are used to represent the mapping relationship between data and at least two modulation symbols, where at least two modulation symbols are It includes at least one zero modulation symbol and at least one non-zero modulation symbol.

The codebook-pilot set includes multiple SCMA codebooks, multiple pilot sequences, and a combinatorial relationship between codebooks and pilots. The combinatorial relationship between codebooks and pilots is a combination formed from codebook-each pilot sequence in the pilot set and one or more codebooks in the codebook-pilot set.

Pilot sequences and SCMA codebooks are uplink pilot sequences and SCMA codebooks used to enable terminals to send uplink data based on unlicensed mode, within the same codebook-pilot set. Pilot sequences are different from each other, and codewords of different codebooks belonging to the same codebook-pilot set have the same number of elements (including zero and non-zero elements). Each pilot sequence in the codebook-pilot set is combined with one or more SCMA codebooks in the codebook-pilot set to form a particular combination of codebook and pilot.

In this embodiment of the invention, when the terminal device selects a codebook-pilot combination in the codebook-pilot set, the terminal device creates an uplink pilot signal by using the pilot sequence corresponding to the combination. And demodulate one or more data streams of the user by using one or more SCMA codebooks corresponding to the transmission and transmission, each data stream corresponding to one SCMA codebook and uplink SCMA data is created and transmitted.

個のSCMAコードブックを有すると想定され、ここで、K_iは1よりも大きいかまたは1に等しい整数であり、1≦i≦Lおよび1≦j≦K_iである。一般に、任意の1≦i≦Lに対して、1≦j₁≠j₂≦K_iであるとき、

は

とは異なり、任意の1≦i₁≠i₂≦Lに対して、ここで、1≦j₁≦K_iおよび1≦j₂≦K₂であるが、

は同じ場合もあり、異なる場合もある。 An example of a possible combinatorial relationship between codebooks and pilots in the codebook-pilot set is provided below. As shown in Table 1, the codebook-pilot set has P ₁ , P ₂ ,. ． ． , P _L individually, with a total of L (L is an integer greater than 1) pilot sequences, labeled C _i,j ,

It is assumed to have SCMA codebooks, where K _i is an integer greater than or equal to 1 and 1≦i≦L and 1≦j≦K _i . Generally, for any 1≦i≦L, when 1≦j ₁ ≠j ₂ ≦K _i ,

Is

, For any 1≦i ₁ ≠i ₂ ≦L, where 1≦j ₁ ≦K _i and 1≦j ₂ ≦K ₂ ,

May be the same or different.

The codebook-pilot set may be predefined and stored in network and terminal devices. One or more codebooks-pilot sets may be stored in network and terminal devices. In general, codewords in codebooks that belong to different codebook-pilot sets have different numbers of elements (including zero and non-zero elements).

In this embodiment of the invention, the network device determining a codebook-pilot set for each transmission area of the M transmission areas refers to combining each transmission area with an assigned codebook-pilot set. .. The codebook and pilots in the codebook-pilot set assigned to the transmission area are used when the network device and the terminal device transmit and receive uplink data on the transmission area, respectively. In general, a network device may allocate one codebook-pilot set for each transmission area, or may allocate multiple codebook-pilot sets for each transmission area. The network device may assign the same codebook-pilot set to different transmission areas, or may assign different codebook-pilot sets. That is, the network device may determine at least one codebook-pilot set for each transmission area and create third information used to indicate the at least one codebook-pilot set.

It will be appreciated that this embodiment of the invention is applicable to a system for performing modulation using a codebook, which system is, for example, a SCMA system or a Low Density Signature (LDS) system. I want to be done. The third information used to indicate the codebook-pilot set may be the information directly indicating the codebook and pilot combination (applicable to SCMA systems) or the modulation constellation, signature sequence, And pilot information, so that the codebook can be modified by using the modulation constellation and signature sequence to further indicate the codebook and pilot combinations (applicable to LDS systems). It is determined. This is not limiting in this embodiment of the invention.

It is further understood that the third information may include the same content as the codebook-pilot set content shown in Table 1. In a more general processing method, a plurality of codebook-pilot sets similar to the codebook-pilot set shown in Table 1 are stored in both the network device and the terminal device to indicate the codebook-pilot set. Only the used index is transmitted in the third information. The index may also be a sequence number or identifier used to indicate the codebook-pilot set. Preferably, the third information includes at least one codebook-pilot set index. For example, the codebook-pilot set is indexed, the index of the at least one codebook-pilot set determined by the network device is used as the third information, the third information sending an indication message. Is sent to the terminal device.

In this embodiment of the invention, the network device sending the indication message corresponding to the transmission area to the terminal device may be implemented in the following manner, but the invention is not so limited. The format of the instruction message is as follows.
GrantFreeTransAreaList:: = SEQUENCE (SIZE (1..maxGrantFreeTransArea)) OF GrantFreeTransAreaInfo
GrantFreeTransAreaInfo:: = SEQUENCE {
timeDomainAssign BIT STRING (SIZE(X)),
freqDomainAssign BIT STRING (SIZE(Y)),
pilot-CodebookAssign BIT STRING (SIZE(Z)),
transportBlockSizeAssign BIT STRING (SIZE(S)),
}
or
GrantFreeTransAreaList:: = SEQUENCE (SIZE (1..maxGrantFreeTransArea)) OF GrantFreeTransAreaInfo
GrantFreeTransAreaInfo:: = SEQUENCE {
timeDomainAssign BIT STRING (SIZE(X)),
freqDomainAssign BIT STRING (SIZE(Y)),
pilot-CodebookAssign BIT STRING (SIZE(Z)),
codeRateAssign BIT STRING (SIZE(S)),
}

GrantFreeTransAreaList is a list of transport areas, contains M transport areas, maxGrantFreeTransArea is the maximum number M of transport areas, timeDomainAssign is used to indicate the time domain resource of the transport area, and is in the form of bit string. , Each bit represents one subframe, a bit of 1 indicates that the transmission area is located within the subframe, and a bit of 0 indicates that the transmission area is not located within the subframe. , FreqDomainAssign is used to indicate the frequency domain resource of the transmission area, and the form of bit string can be used to indicate the resource block occupied by the transmission area. Correspondingly, the first information is a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas and a first bit string of each transmission area of the M transmission areas. A second bit string used to indicate a resource block in the frequency domain.

pilot-CodebookAssign is used to indicate the codebook-pilot set assigned to the transmission area, the format of the bit string can be used to indicate the index of the assigned codebook-pilot set, transportBlockSizeAssign is Used to indicate the transport block size assigned to the transmission area, the format of the bit string can be used to indicate the index of the assigned transport block size, codeRateAssign is assigned to the transmission area. , Used to indicate the coding rate used to calculate the transport block size, and the format of the bit string can be used to indicate the index of the assigned coding rate. Correspondingly, the second information contains the index of the transport block size determined for each transmission area of the M transmission areas, or the second information is for each transmission area of the M transmission areas. Including the index of the coding rate determined in.

When the indication message is sent in the manner described above, at least one pre-defined codebook-pilot set needs to be stored in the network device and the terminal device. Moreover, the stored codebook-pilot sets need to be numbered, while at the same time the transport block size index in Table 2 or the coding rate index in Table 3 below need to be stored in the network and terminal devices. is there.

In Tables 2 and 3 above, x, y, z, and p are non-negative integers, and q is a real number between 0 and 1.

In the above embodiments, the coding rate and codebook-pilot set may be further indicated in an enumeration scheme. For example,
pilot-CodebookAssign ENUMERATED {set-1, set-2, set-3, ...}
codeRateAssign ENUMERATED {cr-r1, cr-r2, cr-r3, ...}, where
pilot-CodebookAssign is used to indicate the codebook-pilot set assigned to the transmission area, where set-1 represents codebook-pilot set 1 and set-2 represents codebook-pilot set 2. , CodeRateAssign is used to indicate the coding rate assigned to the transmission area and used to calculate the transport block size, cr-r1 represents coding rate 1 and cr-r2 is the coding rate. Represents 2, and so on.

Additionally, in this embodiment of the invention, the transport block size may be further indicated in the following manner. For example,
transportBlockSizeAssign TransportBlockSize, where
transportBlockAssign is used to indicate the transport block size assigned to the transport area, for the transport block size, refer to the protocol used in the system.

In the above embodiment, the time domain information of the transmission area may be further indicated in the following manner. For example,
timeDomainAssign BIT STRING (SIZE(X))
timeDomainPeriod ENUMERATED {rf-p1, rf-p2, rf-p3, ...}
timeDomainOffset INTEGER (0..Max), where
timeDomainAssign is used to indicate the time domain resource of the transmission area, where the format of the bit string can be used, each bit represents one subframe, 1 bit is the transmission area within the subframe , The bit that is 0 indicates that the transmission area is not located in the subframe, timeDomainPeriod is used to indicate the duration of the transmission area, where the current radio frame is the condition mod (currently Radio domain number, timeDomainPeriod) = timeDomainOffset, timeDomainAssign indicates whether the transmission area is located on X consecutive subframes starting from the 0th subframe of the current radio frame, where rf-p1 represents the radio frame of p1, rf-p2 represents the radio frame of p2, etc., timeDomainOffset is used to indicate the radio frame offset of the transmission area, where the current radio frame is the condition mod. When (current radio frame number, timeDomainPeriod)=timeDomainOffset is satisfied, timeDomainAssign indicates whether the transmission area is located on X consecutive subframes starting from the 0th subframe of the current radio frame.

In some cases, in another embodiment, the system in which the constellation is used to perform the modulation, eg, Code Division Multiple Access (CDMA) system, Orthogonal Frequency Division Multiple Access. , OFDMA) system, Long Term Evolution (LTE) system, Orthogonal Frequency Division Multiplexing (OFDM) system, Generalized Frequency Division Multiplexing (GFDM) system, or filter In an Orthogonal Orthogonal Frequency Division Multiplexing (Filtered-OFDM, F-OFDM) system, the network device does not send the third information indicating the codebook-pilot set to the terminal device, but instead indicates the constellation-pilot set. Either the information is transmitted, or the network device and the terminal device store the constellation-pilot set so that the terminal device selects the corresponding constellation-pilot combination.

A constellation-pilot set is sometimes referred to as a constellation-pilot combination relationship list in which pilot sequences and modulation constellations are combined to form one or more specific combinations of modulation constellations and pilot sequences. There are L uplink pilot sequences used to enable the terminal device to send uplink data based on the unauthorized mode, where the L uplink pilot sequences are 1 to L individually. There are J modulation constellations that are numbered and used to allow the terminal device to send uplink data based on unauthorized mode, where J modulation constellations are from 1 to J. Suppose they are individually numbered. In general, L=K*J+j, where K is an integer greater than or equal to 1 and j is a non-negative integer less than J. Table 4 gives possible combinatorial relationships between constellations and pilots. There are a total of L combinations. For different combinations, the pilot sequences may be different and the modulation constellations may be the same.

A constellation-pilot set may be predefined and stored in network devices and terminal devices. Since the number of combinatorial relationships between constellations and pilots is less than the number of combinatorial relationships between codebooks and pilots, network devices and terminal devices typically store only constellation-pilot sets separately. There is a need to.

Nouns such as transmission area, codebook-pilot set, and constellation-pilot set involved in this embodiment of the invention may appear in other different forms in different scenarios or systems, i.e., various equivalents. It is to be understood that changes and substitutions may be made and those changes or substitutions should fall within the protection scope of the present invention.

Similar to the above description, in this embodiment of the present invention, the instruction message sent by the network device to the terminal device corresponding to the transmission area may be implemented in the following manner, but the present invention does not Not limited to. The format of the instruction message is as follows.
GrantFreeTransAreaList:: = SEQUENCE (SIZE (1..maxGrantFreeTransArea)) OF GrantFreeTransAreaInfo
GrantFreeTransAreaInfo:: = SEQUENCE {
timeDomainAssign BIT STRING (SIZE(X)),
freqDomainAssign BIT STRING (SIZE(Y)),
transportBlockSizeAssign BIT STRING (SIZE(S)),
}
or
GrantFreeTransAreaList:: = SEQUENCE (SIZE (1..maxGrantFreeTransArea)) OF GrantFreeTransAreaInfo
GrantFreeTransAreaInfo:: = SEQUENCE {
timeDomainAssign BIT STRING (SIZE(X)),
freqDomainAssign BIT STRING (SIZE(Y)),
codeRateAssign BIT STRING (SIZE(S)),
}

GrantFreeTransAreaList is a list of transport areas, contains M transport areas, maxGrantFreeTransArea is the maximum number M of transport areas, timeDomainAssign is used to indicate the time domain resource of the transport area, and is in the form of bit string. , Each bit represents one subframe, a bit of 1 indicates that the transmission area is located within the subframe, and a bit of 0 indicates that the transmission area is not located within the subframe. , FreqDomainAssign is used to indicate the frequency domain resource of the transmission area, the format of the bit string can be used to indicate the resource block occupied by the transmission area, transportBlockAssign is assigned to the transmission area It is used to indicate the transport block size and can use the format of the bit string to indicate the index of the assigned transport block size, codeRateAssign is assigned to the transmission area and indicates the transport block size. It is used to indicate the coding rate used to calculate and the form of the bit string can be used to indicate the index of the assigned coding rate.

When the indication message is sent in the above manner, the transport block size index in Table 5 or the coding rate index in Table 6 below needs to be stored in the network device and the terminal device.

In Tables 2 and 3 above, x, y, z, and p are non-negative integers, and q is a real number between 0 and 1.

In the above embodiments, the coding rate may be further indicated in an enumeration scheme. For example,
codeRateAssign ENUMERATED {cr-r1, cr-r2, cr-r3, ...}, where
codeRateAssign is used to indicate the coding rate assigned to the transmission area and used to calculate the transport block size, where cr-r1 represents the coding rate r1 and cr-r2 is the coding rate r2. And so on.

Additionally, in this embodiment of the invention, the transport block size may be further indicated in the following manner. For example,
transportBlockSizeAssign TransportBlockSize, where
transportBlockAssign is used to indicate the transport block size assigned to the transport area, for the transport block size, refer to the protocol used in the system.

In the above embodiment, the time domain information of the transmission area may be further indicated in the following manner. For example,
timeDomainAssign BIT STRING (SIZE(X))
timeDomainPeriod ENUMERATED {rf-p1, rf-p2, rf-p3, ...}
timeDomainOffset INTEGER (0..Max), where
timeDomainAssign is used to indicate the time domain resource of the transmission area, where the format of the bit string can be used, each bit represents one subframe, 1 bit is the transmission area within the subframe , The bit that is 0 indicates that the transmission area is not located in the subframe, timeDomainPeriod is used to indicate the duration of the transmission area, where the current radio frame is the condition mod (currently Radio domain number, timeDomainPeriod) = timeDomainOffset, timeDomainAssign indicates whether the transmission area is located on X consecutive subframes starting from the 0th subframe of the current radio frame, where rf-p1 represents the radio frame of p1, rf-p2 represents the radio frame of p2, etc., timeDomainOffset is used to indicate the radio frame offset of the transmission area, where the current radio frame is the condition mod. When (current radio frame number, timeDomainPeriod)=timeDomainOffset is satisfied, timeDomainAssign indicates whether the transmission area is located on X consecutive subframes starting from the 0th subframe of the current radio frame.

In this embodiment of the present invention, after receiving the instruction message sent by the network device, the terminal device selects N transmission areas from the M transmission areas according to the instruction message, and determines the transport block size of the transmission area. Determine, on the selected N transmission areas, send uplink data to the network device according to the transport block size of the transmission area, where N is a positive integer less than or equal to M .. Specific implementations are described in detail below and no further details are described herein.

In some cases, in one embodiment, the method 200 comprises
Receiving uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is a positive integer less than or equal to M Is to receive,
Decoding the uplink data on the N transmission areas according to the transport block size of the N transmission areas.

Specifically, the network device receives data on the time-frequency resources corresponding to the transmission area, and some or some of the codebook-pilot combinations in the codebook-pilot set coupled to the transmission area. Try everything and decode the uplink data sent by the terminal device. Based on the information indicating the transport block size (transport block size or coding rate), which is determined when the indication message is determined, the network device performs decoding according to the transport block size of the transmission area.

In this embodiment of the invention, the transport area, the transport block size assigned to the transport area, or the coding rate assigned to the transport area and used to calculate the transport block size, and the transport area are assigned. The codebook-the pilot set is not invariant and the network device can re-determine the transmission area depending on the actual case, and the transmission area that succeeds the second determination is different at least in terms of time or frequency resources. Please understand that. Alternatively, the transport block size, or the coding rate used to calculate the transport block size, is again assigned to the transmission area and a different transport block size or coding rate is successfully assigned a second time. Alternatively, the codebook-pilot set is reassigned to the transmission area and a different codebook-pilot set is successfully assigned a second time. The transport area, or the transport block size assigned to the transport area, or the coding rate assigned to the transport area and used to calculate the transport block size, or the codebook-pilot set assigned to the transport area. When changed, the network device needs to resend the new instruction message to the terminal device. The new indication message contains: at least one transport area, transport block size assigned to each transport area, or coding assigned to each transport area and used to calculate the transport block size. Rate and codebook-pilot set assigned to each transmission area.

In this embodiment of the invention, after decoding the data from the various terminal devices, the network device can distinguish which terminal device the data came from using the following techniques. For example, the terminal device sends an identifier, such as the terminal device's Radio Network Temporary Identity (RNTI), to the network device, which is used as part of the data or scrambled within the data. It After decoding the data, the network device identifies which terminal device the data came from according to the identifier in the data. In addition to the method described above, the purpose of the base station to distinguish which terminal device the data came from may be further implemented by using another method, which means that this embodiment of the invention Is not limited to.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is determined and relevant information about transport block size is assigned to the transmission area, so that the terminal device is The uplink data is transmitted on the transmission area by using the corresponding transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

The uplink data transmission method according to the embodiment of the present invention has been described above in detail with reference to FIGS. 1 to 4 from the perspective of a network device. An uplink data transmission method according to an embodiment of the present invention is described below in detail with reference to FIG. 5 from the perspective of a terminal device.

FIG. 5 is a schematic flowchart of an uplink data transmission method 300 according to an embodiment of the present invention. As shown in FIG. 5, method 300 is performed by a terminal device. Method 300 includes:

S301: Receiving an instruction message sent by a network device, the instruction message including first information and second information, the first information used to indicate M transmission areas allocated by the network device The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is the time range and frequency specified by the communication system. Represents an air interface time-frequency resource including a range.

S302: Select N transmission areas from the M transmission areas according to the first information, where N is a positive integer less than or equal to M.

S303: Determine the transport block size of each of the N transmission areas according to the second information.

S304: On each transmission area of the N transmission areas, uplink data is transmitted to the network device according to the transport block size of each transmission area of the N transmission areas.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is selected and the uplink data is transmitted according to relevant information about the transport block size assigned to the transmission area. It Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

Specifically, in S301, the terminal device receives the instruction message transmitted by the network, the instruction message including information indicating M transmission areas that can be selected and used by the terminal device, the M transmission areas. Further, it includes information indicating the transport block size of each transmission area. The terminal device determines, from the indication message delivered by the network device, the time-frequency resource and the transport block size, or transport block size, used to transmit the uplink data by using the unlicensed mode. Information such as the coding rate used to calculate can be known.

In S302, the terminal device selects N transmission areas from the M transmission areas according to the first information, where N is a positive integer less than or equal to M. The terminal device may select the transmission area by using a random method, or the data buffer status of the terminal device, the channel state of the transmission area, the transport block size or coding rate assigned to the transmission area, And the transmission area may be selected depending on factors such as the codebook-pilot set assigned to the transmission area. For example, the terminal device selects a transmission area having a relatively desirable channel condition or selects a transmission area whose transport block size matches the data buffer size. In addition to the method described above, the terminal device may further select the transmission area by using another method, which is not limited in this embodiment of the invention.

In S303, the terminal device determines transport block sizes of N transmission areas according to the second information.
If the second information included in the instruction message is in the form of an explicit instruction and is a transport block size determined for each transmission area, the terminal device can directly use the transport block size. When the second information included in the instruction message is in the form of an implicit instruction and is a transport block size determined for each transmission area, for example, when the coding rate information is transmitted to the terminal device, The terminal device may calculate the transport block size according to the coding rate.

In S304, the terminal device transmits the uplink data to the network device on each transmission area of the N transmission areas according to the transport block size of each transmission area.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is selected and the uplink data is transmitted according to relevant information about the transport block size assigned to the transmission area. It Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In some cases, in one embodiment, the second information comprises information about the transport block size determined by the network device for each of the M transmission areas, or the second information is M Determining the transport block size of each transmission area of the N transmission areas according to the second information, including information about the coding rate determined by the network device for each transmission area of the N transmission areas.
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data Including determining the block size.

Specifically, if the second information contained in the instruction message is in the form of an explicit instruction and is a transport block size determined for each transmission area, the terminal device directly uses the transport block size. can do. When the second information included in the instruction message is in the form of an implicit instruction and is a transport block size determined for each transmission area, for example, when the coding rate information is transmitted to the terminal device, The terminal device may calculate the transport block size according to the coding rate. For example, the terminal device may determine the transport block size according to the number of unit time-frequency resources, modulation order, and coding rate that are within the transmission area and may be used to transmit data. The specific calculation method may be as follows.

Transport block size = unit time that is within the transmission area and may be used to transmit data-number of frequency resources * modulation order * coding rate / codeword (applicable to systems where codebook modulation is used) Total number of elements in or transport block size = unit time within transmission area that can be used to transmit data-number of frequency resources * modulation order * (applies to systems where constellation modulation is used Possible) coding rate. Unit time-frequency resource refers to the minimum time-frequency resource used to transmit one modulation symbol, for example, Orthogonal Frequency Division Multiplexing (OFDM) system resource element (Resource Element, RE). The modulation order may be acquired according to the number of codewords included in the codebook or the number of constellation points included in the modulation constellation. The number of unit time-frequency resources that are in the transmission area and can be used to transmit data is the number of all unit time-frequency resources included in the transmission area, Obtained by subtracting the number of unit time-frequency resources used to send (eg, pilot and HARQ information).

Preferably, the second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information is determined for each transmission area of the M transmission areas. Contains the index of the coded coding rate.

In some cases, in one embodiment, the area information for each transmission area includes time domain information and frequency domain information for each transmission area. Preferably, the first information is used to indicate a sub-frame of each transmission area of the M transmission areas and a first bit string used to indicate a frequency of each transmission area of the M transmission areas. And a second bit string used.

In some cases, in one embodiment, the method 300 comprises
Selecting one constellation-pilot combination from preset constellation-pilot sets for each of the N transmission areas, wherein the constellation-pilot set includes a plurality of constellation-pilots. Selecting, including combinations,
Creating an uplink pilot signal according to a pilot sequence within the constellation-pilot combination,
On each transport area of the N transport areas, sending uplink data to the network device according to the transport block size of each transport area of the N transport areas is
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

Specifically, a system in which a constellation is used to perform the modulation, for example, a Code Division Multiple Access (CDMA) system, an Orthogonal Frequency Division Multiple Access (OFDMA) system, Long Term Evolution (LTE) system, Orthogonal Frequency Division Multiplexing (OFDM) system, Generalized Frequency Division Multiplexing (GFDM) system, or filtered orthogonal frequency division multiplexing In a filtered (OFDM) system, the network device and the terminal device store the constellation-pilot set, so that the terminal device selects the corresponding constellation-pilot combination.

The terminal uses a random method to call a constellation-pilot set (or a constellation-pilot combination relation list, for example, the previously described constellation-pilot combination stored in the network device and the terminal device). You may select a constellation-pilot combination from the Relationship List) or it may depend on factors such as the data buffer status of the terminal, the channel conditions of the transmission area, and the transport block size or coding rate assigned to the transmission area. Accordingly, a constellation-pilot combination may be selected. For example, when the channel conditions are relatively desirable, a large amount of data is buffered, the transport blocks are relatively large, or the coding rate is relatively low, the terminal device may not be able to use higher order modulation. Select the corresponding constellation-pilot combination. When the channel conditions are relatively poor, a relatively small amount of data is buffered, the transport blocks are relatively small, or the coding rate is relatively high, the terminal device may Select the constellation-pilot combination corresponding to. In addition to the method described above, the terminal device may further select a constellation-pilot combination from the constellation-pilot set by using another method, which is limited in this embodiment of the invention. Not done. It should be appreciated that in this embodiment of the invention, the uplink data may be symbols obtained after the constellation modulation has been performed.

In some cases, in one embodiment, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

Specifically, regardless of which method is used to select the constellation-pilot combination, when the transport block size is assigned to the transmission area, the terminal device selects the constellation-pilot combination. When choosing, it has to be ensured that the selected constellation-pilot combination fulfills the following conditions: unit time-number of frequency resources that are in the transmission area and can be used to transmit data. * Modulation order> Transport block size assigned to the transmission area. Unit time-frequency resource refers to the minimum time-frequency resource used to transmit one modulation symbol, eg, RE in an OFDM system. The modulation order may be acquired according to the number of constellation points included in the constellation. The number of unit time-frequency resources that are in the transmission area and can be used to transmit data is the number of all unit time-frequency resources included in the transmission area, Obtained by subtracting the number of unit time-frequency resources used to send (eg, pilot and HARQ information).

In some cases, in one embodiment, the indication message further comprises third information, wherein the third information is at least one codebook-pilot set determined by the network device for each of the M transmission areas. And a codebook-pilot set includes multiple codebooks, pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
Method 300
Determining at least one codebook-pilot set for each of the N transmission areas according to the third information;
Selecting one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
Creating an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
On each transport area of the N transport areas, sending uplink data to the network device according to the transport block size of each transport area of the N transport areas is
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

In some cases, in one embodiment, the codebook is a sparse code multiple access SCMA codebook, i.e., the codebook includes two or more codewords, the codewords are multidimensional complex vectors, and data and Used to represent a mapping relationship between at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol.

This embodiment of the invention is applicable to a system where a codebook is used to implement the modulation, which system is for example a SCMA system or an LDS system. The third information used to indicate the codebook-pilot set may be the information directly indicating the codebook and pilot combination (applicable to SCMA systems) or the modulation constellation, signature sequence, And pilot information, so that the codebook can be modified by using the modulation constellation and signature sequence to further indicate the codebook and pilot combinations (applicable to LDS systems). It is determined. This is not limiting in this embodiment of the invention.

The terminal device may select a codebook-pilot combination from the codebook-pilot set by using a random method, or it may change the data buffer status of the terminal, the channel state of the transmission area, and the transmission area. The codebook-pilot combination may be selected depending on one or more of the factors such as the allocated transport block size or coding rate. For example, when the channel conditions are relatively desirable, the transport block size is relatively large, or the coding rate is relatively low, the terminal device selects the codebook-pilot combination corresponding to higher order modulation. (The modulation order may be obtained depending on the number of codewords contained in the codebook, eg, the number of codewords is Q _m and the corresponding modulation order is log ₂ (Q _m ). ). When the channel conditions are relatively poor, the transport block size is relatively small, or the coding rate is relatively high, the terminal device selects the codebook-pilot combination corresponding to the lower order modulation. .. When a relatively large amount of data is buffered, the terminal device may select a codebook-pilot combination that includes multiple codebooks to transmit multiple data streams, or may support higher order modulation. When a relatively small amount of data is buffered, the terminal device may select a codebook-pilot combination that includes a single codebook, or a lower order modulation. In addition to the method described above for selecting the codebook-pilot combination corresponding to, the terminal device may further select the codebook-pilot combination from the codebook-pilot set by using another method. This is not limiting in this embodiment of the invention. In this embodiment of the present invention, the uplink data may be symbols obtained after SCMA codebook modulation has been performed.

In some cases, in one embodiment, the codebook-pilot combination has the following conditions:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

Specifically, regardless of which method is used, when the transport block size is assigned to the transmission area, when the terminal device selects the codebook-pilot combination, the selected codebook-pilot is selected. Must be guaranteed to satisfy the following conditions: unit time-number of frequency resources that are in the transmission area and can be used to transmit data*modulation order/total number of elements in codeword> Transport block size combined with the transmission area. Unit time-frequency resource refers to the minimum time-frequency resource used to transmit one modulation symbol. The modulation order may be obtained according to the number of codewords included in the codebook. The number of unit time-frequency resources that are in the transmission area and can be used to transmit data is the number of all unit time-frequency resources included in the transmission area, Obtained by subtracting the number of unit time-frequency resources used to send (eg, pilot and HARQ information).

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, at least one transmission area is selected and the uplink data is transmitted according to relevant information about the transport block size assigned to the transmission area. It Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

By using two specific examples, embodiments of the present invention are described in detail below with reference to FIGS. 6 and 7.

FIG. 6 is a schematic flowchart of an uplink data transmission method 400 according to an embodiment of the present invention. In this embodiment of the present invention, an example in which the network device is a base station and the terminal device is a terminal is used for description. As shown in FIG. 6, the method 400 includes:

S401: The base station determines at least one transmission area.

S402: The base station determines, for each transmission area, a transport block size or a coding rate used to calculate the transport block size.

S403: The base station determines a codebook-pilot set for each transmission area.

S404: The base station creates an instruction message, the instruction message being determined for at least one transmission area, a transport block size determined for each transmission area, or for each transmission area, for calculating the transport block size. It contains the coding rate used and the codebook-pilot set for each transmission area.

S405: The base station sends an instruction message to the terminal.

S406: The terminal selects one or more transmission areas from at least one transmission area according to the instruction message.

S407: According to the instruction message, the terminal determines a transport block size of each selected transmission area or a coding rate used for calculating the transport block size of each selected transmission area.

S408: The terminal selects the codebook-pilot combination from the codebook-pilot set as the codebook-pilot combination of the selected transmission area according to the instruction message.

S409: The terminal creates an uplink pilot and uplink data according to the codebook-pilot combination and the transport block size, or the coding rate used to calculate the transport block size.

S410: The terminal sends uplink pilots and uplink data to the network device on one or more transmission areas.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, the network device determines at least one transmission area, and the relevant information about the transport block size is assigned to the transmission area, so that the terminal The device transmits uplink data on the transmission area by using the corresponding transport block size. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

FIG. 7 is a schematic flowchart of an uplink data transmission method 500 according to an embodiment of the present invention. In this embodiment of the present invention, an example in which the network device is a base station and the terminal device is a terminal is used for description. As shown in FIG. 7, the method 500 includes:

S501: The base station determines at least one transmission area.

S502: The base station determines, for each transmission area, a transport block size or a coding rate used for calculating the transport block size.

S503: The base station creates an instruction message, the instruction message being determined for at least one transmission area, a transport block size determined for each transmission area, or for each transmission area, for calculating the transport block size. Contains the coding rate used.

S504: The base station sends an instruction message to the terminal.

S505: The terminal selects one or more transmission areas from at least one transmission area according to the instruction message.

S506: The terminal determines a transport block size of each selected transmission area or a coding rate used to calculate the transport block size of each selected transmission area according to the instruction message.

S507: The terminal selects the constellation-pilot combination as the constellation-pilot combination of the selected transmission area according to the constellation-pilot set stored in the terminal.

S508: The terminal creates the uplink pilot and the uplink data according to the constellation-pilot combination and the transport block size, or the coding rate used to calculate the transport block size.

S509: A terminal sends uplink pilots and uplink data to a network device on one or more transmission areas.

Therefore, in the uplink data transmission method provided in this embodiment of the present invention, the network device determines at least one transmission area, and the relevant information about the transport block size is assigned to the transmission area, so that the terminal The device transmits uplink data on the transmission area by using the corresponding transport block size. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

The uplink data transmission method according to the embodiment of the present invention has been described above in detail with reference to FIGS. 2 to 7. An uplink data transmission device according to an embodiment of the present invention will be described below in detail with reference to FIGS. 8 to 11.

FIG. 8 shows an uplink data transmission device 600 according to an embodiment of the present invention. As shown in FIG. 8, the device 600 includes
A first determination module 601 configured to determine M transmission areas allocated to the terminal device and create first information used to indicate the M transmission areas, wherein M is A first determination module 601 wherein the transmission area is a positive integer and the transmission area represents an air interface time-frequency resource including a time range and a frequency range specified by the communication system;
For each transmission area of the M transmission areas determined by the first determination module 601, a second determination module 602 configured to determine second information used to indicate the transport block size. When,
A sending module 603 configured to send an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, the instruction message being determined by the first determining module 601. A transmission module 603 including the one information and the second information determined by the second determination module 602.

Therefore, the uplink data transmission apparatus provided in this embodiment of the present invention determines at least one transmission area and assigns relevant information about transport block size to the transmission area so that the terminal device can Uplink data is transmitted on the transmission area by using the transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In some cases, in one embodiment, the device 600 comprises
A third used to determine at least one codebook-pilot set for each transmission area of the M transmission areas determined by the first determination module 601 and to indicate at least one codebook-pilot set. Further comprising a second decision module configured to generate the information,
The indication message sent by the sending module 603 further comprises third information, and the codebook-pilot set comprises a plurality of codebooks, a plurality of pilot sequences and a combinatorial relationship between codebooks and pilot sequences.

In some cases, in one embodiment, the codebook includes two or more codewords, the codewords being multidimensional complex vectors used to represent a mapping relationship between data and at least two modulation symbols. And at least two modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

In some cases, in one embodiment, the second information comprises information about a transport block size determined for each of the M transmission areas, or the second information is in the transmission area. Yes, and for each transmission area of the M transmission areas such that the terminal device determines the transport block size according to the number of unit time-frequency resources that can be used to transmit data, the modulation order, and the coding rate. It contains information about the determined coding rate.

In some cases, in one embodiment, the device 600 comprises
A receiving module configured to receive uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is less than M or A receiving module, which is a positive integer equal to M,
And a decoding module configured to decode the uplink data on the N transmission areas according to a transport block size of the N transmission areas.

In some cases, in one embodiment, the first information includes time domain information and frequency domain information for each of the M transmission areas.

In some cases, in one embodiment, the third information comprises an index of at least one codebook-pilot set.

In some cases, in one embodiment, the second information comprises an index of transport block sizes determined for each of the M transmission areas, or the second information is M transmission areas. It includes the index of the coding rate determined for each transmission area.

In some cases, in one embodiment, the first information is a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas, and a first bit string of the M transmission areas. A second bit string used to indicate the frequency domain resource blocks of each transmission area.

In some cases, in one embodiment, the sending module 603 may specifically:
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Configured to send an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

In some cases, in one embodiment apparatus 600 is a network device.

The apparatus 600 according to this embodiment of the invention may correspond to a network device in the method embodiment of the invention, wherein the aforementioned and other operations and/or functions of the modules in the apparatus 600 are similar to those of FIGS. It should be understood that it is used individually to implement the corresponding steps in the method and, for simplicity, is not described in further detail herein.

Therefore, the uplink data transmission apparatus provided in this embodiment of the present invention determines at least one transmission area and assigns relevant information about transport block size to the transmission area so that the terminal device can Uplink data is transmitted on the transmission area by using the transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

FIG. 9 shows an uplink data transmission device 700 according to an embodiment of the present invention. As shown in FIG. 9, the device 700 is
A receiving module 701 configured to receive an instruction message sent by a network device, wherein the instruction message includes first information and second information, the first information being M allocated by the network device. Second transmission area, the second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is A receiving module 701 representing an air interface time-frequency resource including a time range and a frequency range specified by the system;
A first decision module 702 configured to select N transmission areas from M transmission areas according to the first information, wherein N is a positive integer less than or equal to M. , A first decision module 702,
A second determining module 703 configured to determine a transport block size for each transmission area of the N transmission areas determined by the first determining module according to the second information;
On each transmission area of the N transmission areas determined by the first determination module 702, the network of each transmission area of the N transmission areas according to the transport block size determined by the second determination module 703. A transmission module 704 configured to transmit the uplink data to the device.

Therefore, the uplink data transmission device provided in this embodiment of the present invention selects at least one transmission area and transmits the uplink data according to the relevant information assigned to the transmission area for the transport block size. To do. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In some cases, in one embodiment, device 700 comprises
A third decision module configured to select one constellation-pilot combination from a preset constellation-pilot set for each of the N transmission areas, the constellation-pilot A third decision module, the set comprising a plurality of constellation-pilot combinations;
A first generation module configured to generate an uplink pilot signal according to a pilot sequence in the constellation-pilot combination determined by the third determination module,
The transmission module 704 is specifically
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
And transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

In some cases, in one embodiment, the indication message further comprises third information, wherein the third information is at least one codebook-pilot set determined by the network device for each of the M transmission areas. And a codebook-pilot set includes multiple codebooks, pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The device 700 is
A fourth determination module configured to determine at least one codebook-pilot set for each transmission area of the N transmission areas according to the third information;
A fifth decision module configured to select one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
A second generation module configured to generate an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
The transmission module 704 is specifically
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
And transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

In some cases, in one embodiment, the codebook is a sparse code multiple access SCMA codebook, the codebook includes two or more codewords, the codewords being a multidimensional complex vector, and the data and at least 2 Used to represent a mapping relationship between two modulation symbols, the at least two modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

In some cases, in one embodiment, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

In some cases, in one embodiment, the codebook-pilot combination has the following conditions:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

In some cases, in one embodiment, the second information comprises information about the transport block size determined by the network device for each of the M transmission areas, or the second information is M The second determination module specifically includes information about the coding rate determined by the network device for each of the transmission areas of the number of transmission areas.
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data It is configured to determine the block size.

In some cases, in one embodiment, the first information includes time domain information and frequency domain information for each of the M transmission areas.

In some cases, in one embodiment, the third information comprises an index of at least one codebook-pilot set.

In some cases, in one embodiment, the second information comprises an index of transport block sizes determined for each of the M transmission areas, or the second information is M transmission areas. It includes the index of the coding rate determined for each transmission area.

In some cases, in one embodiment, the first information is a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas, and a first bit string of the M transmission areas. A second bit string used to indicate the frequency domain resource blocks of each transmission area.

In some cases, in one embodiment, apparatus 700 is a terminal device.

The apparatus 700 according to this embodiment of the invention may correspond to a network device in the method embodiment of the invention, wherein the aforementioned and other operations and/or functions of the modules in the apparatus 700 are similar to those of FIGS. It should be understood that it is used individually to implement the corresponding steps in the method and, for simplicity, is not described in further detail herein.

Therefore, the uplink data transmission device provided in this embodiment of the present invention selects at least one transmission area and transmits the uplink data according to the relevant information assigned to the transmission area for the transport block size. To do. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

As shown in FIG. 10, one embodiment of the present invention further provides an uplink data transmission device 800. The device 800 includes a processor 801, a memory 802, a bus system 803, and a transceiver 804. Processor 801, memory 802, and transceiver 804 are connected by using bus system 803. The memory 802 is configured to store the instructions and the processor 801 is configured to execute the instructions stored in the memory 802 to control and signal the transceiver 804. The processor 801 is to determine M transmission areas to be allocated to the terminal device and create first information used to indicate the M transmission areas, where M is a positive integer, To create, the transmission area represents an air interface time-frequency resource that includes a time range and a frequency range specified by the communication system, and to indicate the transport block size for each transmission area of the M transmission areas. Configured to determine the second information to be used,
The transceiver 804 is to send an instruction message to the terminal device such that the terminal device transmits the uplink data according to the instruction message, the instruction message including the first information and the second information. Is configured to do.

Therefore, the uplink data transmission apparatus provided in this embodiment of the present invention determines at least one transmission area and assigns relevant information about transport block size to the transmission area so that the terminal device can Uplink data is transmitted on the transmission area by using the transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In this embodiment of the invention, processor 801 may be a central processing unit (“CPU” for short), or processor 801 may be another general purpose processor, digital signal processor (DSP), application specific. It may be an integrated circuit (ASIC), field programmable gate array (FPGA) or another programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

Memory 802, which may include read-only memory and random access memory, provides instructions and data to processor 801. Some of the memory 802 may further include non-volatile random access memory. For example, memory 802 may also store device type information.

The bus system 803 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of explanation, the various types of buses in the figure are all shown as bus system 803.

In one implementation process, the steps of the methods described above may be completed by using instructions in the form of hardware integrated logic circuits or software within processor 801. The steps of the methods disclosed with reference to the embodiments of the present invention may be performed and completed directly using a hardware processor, or using a combination of hardware and software modules within the processor. May be implemented and completed by The software modules may reside in mature storage media in the art, such as random access memory, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, or registers. A storage medium is located in memory 802 and processor 801 reads the information in memory 802 and, in combination with the hardware of processor 910, completes the steps in the method described above. Details are not described again herein to avoid repetition.

In some cases, in one embodiment, the processor 801 is
Determining at least one codebook-pilot set for each of the M transmission areas and creating a third information used to indicate the at least one codebook-pilot set, wherein: A book-pilot set is further configured to create, including a plurality of codebooks, a plurality of pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The instruction message sent by the transceiver 804 further includes third information.

In some cases, in one embodiment, the codebook is a sparse code multiple access SCMA codebook, the codebook includes two or more codewords, the codewords being a multidimensional complex vector, and the data and at least 2 Used to represent a mapping relationship between two modulation symbols, the at least two modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

In some cases, in one embodiment, the second information comprises information about a transport block size determined for each of the M transmission areas, or the second information is in the transmission area. Yes, and for each transmission area of the M transmission areas such that the terminal device determines the transport block size according to the number of unit time-frequency resources that can be used to transmit data, the modulation order, and the coding rate. It contains information about the determined coding rate.

In some cases, in one embodiment, the transceiver 804 is
Receiving uplink data sent by a terminal device on N transmission areas according to a transport block size of N transmission areas, where N is a positive integer less than or equal to M Is further configured to do the receiving,
The processor 801,
It is further configured to decode the uplink data on the N transmission areas according to the transport block size of the N transmission areas.

In some cases, in one embodiment, the first information includes time domain information and frequency domain information for each of the M transmission areas.

In some cases, in one embodiment, sending an instruction message to the terminal device by transceiver 804 comprises:
Carrying an indication message on a broadcast channel and sending it in a broadcast manner to all or some of the terminal devices served by a network device, or carrying an indication message on a dedicated control channel and using a unicast method. , Sending an instruction message to a particular terminal device or a particular group of terminal devices served by a network device.

In some cases, in one embodiment, the third information comprises an index of at least one codebook-pilot set.

In some cases, in one embodiment, the second information comprises an index of transport block sizes determined for each of the M transmission areas, or the second information is M transmission areas. It includes the index of the coding rate determined for each transmission area.

In some cases, in one embodiment, the first information is a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas, and a first bit string of the M transmission areas. A second bit string used to indicate the frequency domain resource blocks of each transmission area.

In some cases, in one embodiment, apparatus 800 is a terminal device.

The uplink data transmission apparatus 800 according to this embodiment of the present invention may correspond to the network device and apparatus 600 in this embodiment of the present invention, and corresponds to the corresponding object for implementing the method according to the embodiment of the present invention. Please understand that there is. The foregoing and other operations and/or features of the modules within device 800 are used individually to implement the corresponding steps in the methods of FIGS. 2-7, and are herein described in detail for simplicity. Not described above

Therefore, the uplink data transmission apparatus provided in this embodiment of the present invention determines at least one transmission area and assigns relevant information about transport block size to the transmission area so that the terminal device can Uplink data is transmitted on the transmission area by using the transport block size. Therefore, the uplink data can be decoded on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

As shown in FIG. 11, one embodiment of the present invention further provides an uplink data transmission device 900. The device 900 includes a processor 901, a memory 902, a bus system 903, and a transceiver 904. Processor 901, memory 902, and transceiver 904 are connected by using bus system 903. The memory 902 is configured to store instructions and the processor 901 is configured to execute the instructions stored in the memory 902 to control and signal the transceiver 904. The transceiver 904 is
Receiving an instruction message sent by a network device, the instruction message including first information and second information, the first information indicating M transmission areas allocated by the network device. The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is the time range specified by the communication system. And representing an air interface time-frequency resource including a frequency range and configured to perform receiving,
The processor 901 is
Selecting N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than or equal to M;
And determining a transport block size of each transmission area of the N transmission areas according to the second information,
The transceiver 904 is
On each transport area of the N transport areas, it is further configured to send uplink data to the network device according to a transport block size of each transport area of the N transport areas.

Therefore, the uplink data transmission device provided in this embodiment of the present invention selects at least one transmission area and transmits the uplink data according to the relevant information assigned to the transmission area for the transport block size. To do. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced.

In this embodiment of the invention, processor 901 may be a central processing unit (“CPU” for short), or processor 901 may be another general purpose processor, digital signal processor (DSP), application specific. It should be understood that it can be an integrated circuit (ASIC), field programmable gate array (FPGA) or another programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

Memory 902, which may include read-only memory and random access memory, provides instructions and data to processor 901. Some of the memory 902 may further include non-volatile random access memory. For example, memory 902 may also store device type information.

The bus system 903 may include a power supply bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of explanation, the various types of buses in the figure are all shown as bus system 903.

In one implementation process, the steps of the methods described above may be completed by using instructions in the form of hardware integrated logic circuits or software within processor 901. The steps of the methods disclosed with reference to the embodiments of the present invention may be performed and completed directly using a hardware processor, or using a combination of hardware and software modules within the processor. May be implemented and completed by The software modules may reside in mature storage media in the art, such as random access memory, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, or registers. A storage medium is located in memory 902 and processor 901 reads the information in memory 902 and, in combination with the hardware of processor 901, completes the steps in the methods described above. Details are not described again herein to avoid repetition.

In some cases, in one embodiment, the processor 901 is
Selecting one constellation-pilot combination from preset constellation-pilot sets for each of the N transmission areas, wherein the constellation-pilot set includes a plurality of constellation-pilots. Selecting, including combinations,
And configuring an uplink pilot signal according to a pilot sequence in the constellation-pilot combination,
Transmitting the uplink data to the network device by the transceiver 904 on each transmission area of the N transmission areas according to the transport block size of each transmission area of the N transmission areas,
Constellation-creating uplink data on each transmission area of the N transmission areas according to the modulation constellation in the pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

In some cases, in one embodiment, the indication message further comprises third information, the third information comprising at least one codebook-pilot set determined by the network device for each of the M transmission areas. Used to illustrate, the codebook-pilot set includes multiple codebooks, pilot sequences, and combinatorial relationships between codebooks and pilot sequences.

The processor 901 is
Determining at least one codebook-pilot set for each of the N transmission areas according to the third information;
Selecting one codebook-pilot combination from at least one codebook-pilot set for each of the N transmission areas;
And further forming an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
Transmitting the uplink data to the network device by the transceiver 904 on each transmission area of the N transmission areas according to the transport block size of each transmission area of the N transmission areas,
Creating uplink data on each transmission area of the N transmission areas according to the codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas;
Transmitting uplink pilots and uplink data to the network device on each of the N transmission areas.

In some cases, in one embodiment, the codebook is a sparse code multiple access SCMA codebook, the codebook includes two or more codewords, the codewords being a multidimensional complex vector, and the data and at least 2 Used to represent a mapping relationship between two modulation symbols, the at least two modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

In some cases, in one embodiment, the constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> transport block size determined for transmission area Fulfill.

In some cases, in one embodiment, the codebook-pilot combination has the following conditions:
A unit time within the transmission area that can be used to transmit data-the number of frequency resources * the modulation order of the codebook in the codebook-pilot combination> satisfies the transport block size determined for the transmission area ..

In some cases, in one embodiment, the second information comprises information about the transport block size determined by the network device for each of the M transmission areas, or the second information is M Determining, by the processor 901, the transport block size of each transmission area of the N transmission areas, including information about the coding rate determined by the network device for each transmission area of the N transmission areas. Is
Transport of each transmission area of N transmission areas according to the number of unit time-frequency resources, modulation order, and coding rate, which are in each transmission area of N transmission areas and can be used to transmit data Including determining the block size.

In some cases, in one embodiment, the first information includes time domain information and frequency domain information for each of the M transmission areas.

In some cases, in one embodiment, the third information comprises an index of at least one codebook-pilot set.

In some cases, in one embodiment, the second information comprises an index of transport block sizes determined for each of the M transmission areas, or the second information is M transmission areas. It includes the index of the coding rate determined for each transmission area.

In some cases, in one embodiment, the first information is a first bit string used to indicate a time domain subframe of each transmission area of the M transmission areas, and a first bit string of the M transmission areas. A second bit string used to indicate the frequency domain resource blocks of each transmission area.

In some cases, in one embodiment, device 900 is a terminal device.

The uplink data transmission apparatus 900 according to this embodiment of the present invention may correspond to the network device and apparatus 700 in this embodiment of the present invention, and corresponds to the corresponding object implementing the method according to the embodiment of the present invention. Please understand that there is. The foregoing and other operations and/or features of the modules within device 900 are used individually to implement the corresponding steps in the methods of FIGS. 2-7, and are herein described in detail for simplicity. Not described above

Therefore, the uplink data transmission device provided in this embodiment of the present invention selects at least one transmission area and transmits the uplink data according to the relevant information assigned to the transmission area for the transport block size. To do. Therefore, the network device can decode the uplink data on the transmission area according to the transport block size. In this way, the processing delay can be reduced. Additionally, the term "and/or" herein describes only association relationships for describing related objects, and that three relationships may exist, for example, A and/or B may represent three cases: only A exists, both A and B exist, only B exists. In addition, the character "/" herein generally refers to an "or" relationship between related objects.

Those skilled in the art will appreciate that, in combination with the examples described in the embodiments disclosed herein, the units and algorithm steps may be implemented by electronic hardware, computer software, or a combination thereof. See. In order to clearly describe the compatibility between hardware and software, the above description generally describes the configuration and steps of each example according to the function. Whether the function is implemented by hardware or software depends on the particular application of the technical solution and the design constraints. A person of ordinary skill in the art may implement the functionality described for each particular application using various methods, but the implementation should not be considered to be beyond the scope of the present invention.

For convenient and concise description, reference may be made to the detailed operating processes of the above-described systems, devices and units to the corresponding processes in the above-described method embodiments, and details may be found herein. What is not described will be clearly understood by those skilled in the art.

It is to be appreciated that in some embodiments provided in this application, the disclosed systems, devices, and methods may be implemented in other manners. For example, the described device embodiment is merely an example. For example, the unit division is only a logical function division, and may be another division in an actual implementation. For example, multiple units or components may be combined or integrated into another system, or some functionality may be ignored or not implemented. In addition, the displayed or described mutual couplings or direct couplings or communication connections may be implemented via several interfaces. Indirect couplings or communication connections between devices or units may be implemented in electrical, mechanical, or other forms.

Units described as separate parts may or may not be physically separated, and parts shown as units may or may not be physical units and may be in one place. It may be located at or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs in order to achieve the objectives of the solutions of the embodiments of the present invention.

It is understood that, for the sake of brevity and clarity of the application document, the technical features and the description in the above embodiments are applicable to other embodiments, which are no longer described in detail one by one. I want to be done.

In addition, the functional units in embodiments of the invention may be integrated into one processing unit, or each unit may be physically present alone, or two or more units may be one unit. May be combined into one unit. The integrated unit may be implemented in the form of hardware or a software functional unit.

When the integrated unit is implemented in the form of a software functional unit and sold or used as a stand-alone product, the integrated unit may be stored on a computer readable storage medium. On the basis of such an understanding, the technical solution of the present invention is essentially or part contributing to the prior art, or all or part of the technical solution is implemented in the form of a software product. There is. The software product is stored on a storage medium and directs a computing device (which may be a personal computer, server, or network device) to perform all or some of the method steps described in embodiments of the present invention. Including some instructions to do. The above-mentioned storage medium stores a program code such as a USB flash drive, a removable hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disk. Any medium capable of being included is included.

For the sake of brevity and clarity of the application documents, the technical features and the description in the above embodiments can be applied to other embodiments, for example, the technical features in the method embodiments can be the same as those in the device embodiment or another embodiment. It should be understood that the method embodiments may be applicable to other method embodiments, and in other embodiments they are no longer described in detail one by one.
The foregoing descriptions are merely specific embodiments of the present invention, but do not limit the protection scope of the present invention. Any modification or substitution easily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

100 communication system
102 network devices
104, 106, 108, 110, 112, 114 antennas
116 Terminal device
118 forward link
120 reverse link
122 Terminal device
124 forward link
126 Reverse link
200 Uplink data transmission method
300 Uplink data transmission method
400 Uplink data transmission method
500 Uplink data transmission method
600 Uplink data transmission device
601 First decision module
602 Second decision module
603 transmitter module
700 Uplink data transmission equipment
701 Receiver module
702 First Decision Module
703 Second Decision Module
704 Transmission module
800 Uplink data transmission device
801 processor
802 memory
803 bus system
804 transceiver
900 uplink data transmission equipment
901 processor
902 memory
903 bus system
904 transceiver

Claims (67)

An uplink data transmission method,
Determining M transmission areas to be allocated to the terminal device and creating first information used to indicate said M transmission areas, M being a positive integer, said transmission areas Represents an air interface time-frequency resource comprising a time range and a frequency range specified by the communication system, and
Determining, for each transmission area of the M transmission areas, second information used to indicate a transport block size,
Sending the instruction message to the terminal device such that the terminal device transmits uplink data according to the instruction message, the instruction message including the first information and the second information. And including methods. Further comprising determining at least one codebook-pilot set for each of the M transmission areas and creating third information used to indicate the at least one codebook-pilot set. ,
The instruction message further comprises the third information, and the codebook-pilot set comprises a plurality of codebooks, a plurality of pilot sequences, and a combined relationship between codebooks and pilot sequences. The method described. The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. The method of claim 2, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 4. The method according to any one of claims 1 to 3, wherein the third information comprises an index of the at least one codebook-pilot set. The second information includes information about the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas Method according to any one of claims 1 to 4, comprising information about the coding rate determined in. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas The method according to any one of claims 1 to 5, comprising an index of the coding rate determined in. Receiving uplink data sent by said terminal device on said N transmission areas according to a transport block size of N transmission areas, where N is less than or equal to M A step, which is an integer of
Decoding said uplink data on said N transmission areas according to said transport block size of said N transmission areas, the method according to any one of claims 1 to 6. 8. The method according to any one of claims 1 to 7, wherein the first information includes time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. A second bit string used to indicate the resource blocks of the. The step of sending an instruction message to the terminal device,
Carrying the instruction message on a broadcast channel and transmitting the instruction message to all or some of the terminal devices served by a network device in a broadcast manner, or carrying the instruction message on a dedicated control channel, Sending said indication message to one particular terminal device or one particular group of terminal devices served by said network device in a unicast manner. the method of. An uplink data transmission method,
Receiving an instruction message sent by a network device, said instruction message comprising first information and second information, said first information being M transmission areas allocated by said network device. , The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is a communication system. Representing an air interface time-frequency resource with a time range and a frequency range specified by
Selecting N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than M or equal to M, and
Determining a transport block size for each of the N transmission areas according to the second information,
Transmitting on each transmission area of the N transmission areas, according to the transport block size of each transmission area of the N transmission areas, uplink data to the network device. A step of selecting one constellation-pilot combination from a predetermined constellation-pilot set for each of the N transmission areas, wherein the constellation-pilot set includes a plurality of constellation-pilots. A step including a combination;
Creating an uplink pilot signal according to a pilot sequence in the constellation-pilot combination.
On each transmission area of the N transmission areas, the step of transmitting uplink data to the network device according to the transport block size of each transmission area of the N transmission areas,
According to the modulation constellation in the constellation-pilot combination, and according to the transport block size of each transmission area of the N transmission areas, the uplink data on each transmission area of the N transmission areas The steps to create,
Transmitting the uplink pilot and the uplink data to the network device on each transmission area of the N transmission areas. The indication message further comprises third information, the third information being used to indicate at least one codebook-pilot set determined by the network device for each of the M transmission areas. Wherein the codebook-pilot set includes a plurality of codebooks, pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The method is
Determining at least one codebook-pilot set for each transmission area of the N transmission areas according to the third information;
Selecting, for each transmission area of the N transmission areas, one codebook-pilot combination from the at least one codebook-pilot set;
Creating an uplink pilot signal according to a pilot sequence in the codebook-pilot combination.
On each transmission area of the N transmission areas, the step of transmitting uplink data to the network device according to the transport block size of each transmission area of the N transmission areas,
Create the uplink data on each transmission area of the N transmission areas according to a codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas. Steps to
Transmitting the uplink pilot and the uplink data to the network device on each transmission area of the N transmission areas. The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. 14. The method of claim 13, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 15. The method of claim 13 or 14, wherein the third information comprises an index of the at least one codebook-pilot set. The constellation-pilot combination has the following conditions:
Unit time within the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> Transport block size determined for said transmission area 13. The method of claim 12, which satisfies. The codebook-pilot combination has the following conditions:
The unit time-the number of frequency resources that are in the transmission area and can be used to transmit data * the modulation order of the codebook in the codebook-pilot combination> the transport block size determined for the transmission area 16. The method according to any one of claims 13 to 15, satisfying. The second information includes information about the coding rate determined by the network device for each transmission area of the M transmission areas, of each transmission area of the N transmission areas according to the second information. The step of determining the transport block size,
Each transmission area of the N transmission areas according to the number of unit time-frequency resources, modulation order, and the coding rate, which are in each transmission area of the N transmission areas and can be used to transmit data. 18. The method according to any one of claims 11 to 17, comprising: determining the transport block size of. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas 18. The method according to any one of claims 11 to 17, comprising an index of the coding rate determined in. 20. The method according to any one of claims 11 to 19, wherein the first information comprises time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. And a second bit string used to indicate the resource block of the method according to any one of claims 11 to 20. An uplink data transmission device,
A first determination module configured to determine M transmission areas allocated to the terminal device and create first information used to indicate the M transmission areas, wherein M is A first determining module, which is a positive integer, said transmission area representing an air interface time-frequency resource comprising a time range and a frequency range specified by the communication system;
For each transmission area of the M transmission areas determined by the first determination module, a second determination module configured to determine second information used to indicate a transport block size. When,
A transmitting module configured to send the instruction message to the terminal device such that the terminal device transmits uplink data according to the instruction message, the instruction message being determined by the first determining module. A transmission module including the first information and the second information determined by the second determination module. Used to determine at least one codebook-pilot set for each transmission area of the M transmission areas determined by the first determination module and to indicate the at least one codebook-pilot set; Further comprising a second decision module configured to produce the information of 3,
The indication message transmitted by the transmission module further comprises the third information, wherein the codebook-pilot set comprises a plurality of codebooks, a plurality of pilot sequences, and a combination relation between the codebooks and pilot sequences. 23. The device of claim 22, comprising: The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. 24. The apparatus of claim 23, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 25. The apparatus according to any one of claims 22 to 24, wherein the third information includes an index of the at least one codebook-pilot set. The second information includes information about a transport block size determined for each transmission area of the M transmission areas, or the second information is for each transmission area of the M transmission areas Information on the determined coding rate, such that the terminal device is in the transmission area and can be used for transmitting data, the number of unit time-frequency resources, the modulation order, and the coding rate. 26. The apparatus according to any one of claims 22 to 25, which determines the transport block size according to. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas 27. The apparatus according to any one of claims 22 to 26, comprising an index of the coding rate determined in. A receiving module configured to receive uplink data transmitted by the terminal device on the N transmission areas according to a transport block size of the N transmission areas, where N is less than M Or a positive integer equal to M, and
A decoding module configured to decode the uplink data on the N transmission areas according to the transport block sizes of the N transmission areas. The device according to paragraph. 29. The device according to any one of claims 22 to 28, wherein the first information includes time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. 30. A device according to any one of claims 22 to 29, comprising a second bit string used to indicate a resource block of the. Specifically, the transmission module,
Carrying the instruction message on a broadcast channel and transmitting the instruction message to all or some of the terminal devices served by the network device in a broadcast manner, or carrying the instruction message on a dedicated control channel, Any of claims 22 to 30 configured to send the indication message to one particular terminal device or one particular group of terminal devices served by the network device in a unicast manner. The device according to 1 above. 32. The device according to any one of claims 22 to 31, wherein the device is a network device. An uplink data transmission device,
A receiving module configured to receive an instruction message transmitted by a network device, the instruction message including first information and second information, the first information being allocated by the network device. Used to indicate M transmission areas, the second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, A receiving module, the transmission area representing an air interface time-frequency resource comprising a time range and a frequency range specified by the communication system;
A first determination module configured to select N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than or equal to M. There is a first decision module,
A second determination module configured to determine a transport block size for each transmission area of the N transmission areas determined by the first determination module according to the second information,
On each transmission area of the N transmission areas determined by the first determination module, for each transmission area of the N transmission areas, the transport block size determined by the second determination module And a transmission module configured to transmit uplink data to the network device according to. A third determination module configured to select one constellation-pilot combination from a predetermined constellation-pilot set for each of the N transmission areas, the constellation-pilot A third decision module, the set comprising a plurality of constellation-pilot combinations;
A first generation module configured to generate an uplink pilot signal according to a pilot sequence in the constellation-pilot combination determined by the third determination module,
Specifically, the transmission module,
Create uplink data on each transmission area of the N transmission areas according to a modulation constellation in the constellation-pilot combination and according to the transport block size of each transmission area of the N transmission areas What to do
34. The apparatus of claim 33, configured to: transmit the uplink pilot and the uplink data to the network device on each of the N transmission areas. The indication message further comprises third information, the third information being used to indicate at least one codebook-pilot set determined by the network device for each of the M transmission areas. Wherein the codebook-pilot set includes a plurality of codebooks, pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The device is
A fourth determination module configured to determine at least one codebook-pilot set for each transmission area of the N transmission areas according to the third information;
A fifth determination module configured to select one codebook-pilot combination from the at least one codebook-pilot set for each of the N transmission areas.
A second creation module configured to create an uplink pilot signal according to a pilot sequence in the codebook-pilot combination,
Specifically, the transmission module,
Create uplink data on each transmission area of the N transmission areas according to a codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas. That
34. The apparatus of claim 33, configured to: transmit the uplink pilot and the uplink data to the network device on each of the N transmission areas. The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. 36. The apparatus of claim 35, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 37. The apparatus of claim 35 or 36, wherein the third information comprises an index of the at least one codebook-pilot set. The constellation-pilot combination has the following conditions:
Unit time within the transmission area and which can be used to transmit data-number of frequency resources * modulation within constellation-pilot combination Modulation order of constellation> Transport block size determined for said transmission area 35. The device of claim 34, which satisfies: The codebook-pilot combination has the following conditions:
The unit time-the number of frequency resources that are in the transmission area and can be used to transmit data * the modulation order of the codebook in the codebook-pilot combination> the transport block size determined for the transmission area 38. A device as claimed in any one of claims 35 to 37 which satisfies. The second information includes information about a coding rate determined by the network device for each transmission area of the M transmission areas, the transmission module, specifically,
Each transmission area of the N transmission areas according to the number of unit time-frequency resources, modulation order, and the coding rate that are in each transmission area of the N transmission areas and can be used to transmit data 40. The apparatus according to any one of claims 33 to 39, which is configured to: determine the transport block size of the. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas 40. The apparatus according to any one of claims 33 to 39, comprising the index of the coding rate determined in. 42. The apparatus according to any one of claims 33 to 41, wherein the first information includes time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. 43. A device according to any one of claims 33 to 42, comprising a second bit string used to indicate the resource block of the. 44. The device according to any one of claims 33 to 43, wherein the device is a terminal device. An uplink data transmission device,
A processor, a memory, a bus system and a transceiver, the processor, the memory and the transceiver being connected by using the bus system, the memory being configured to store instructions; Is configured to execute the instructions stored in the memory to control and signal the transceiver,
The processor is
Determining M transmission areas allocated to a terminal device and creating first information used to indicate said M transmission areas, M being a positive integer, said transmission areas Represents an air interface time-frequency resource comprising a time range and a frequency range specified by the communication system, and
Determining, for each transmission area of the M transmission areas, second information used to indicate a transport block size,
Said transceiver transmitting said indication message to said terminal device such that said terminal device transmits uplink data according to the indication message, said indication message comprising said first information and said second information. An apparatus configured to: The processor is
Determining at least one codebook-pilot set for each of the M transmission areas and creating third information used to indicate the at least one codebook-pilot set. , The codebook-pilot set comprises a plurality of codebooks, a plurality of pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
46. The apparatus of claim 45, wherein the instruction message transmitted by the transceiver further comprises the third information. The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. 47. The apparatus of claim 46, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 48. The apparatus according to any one of claims 45 to 47, wherein the third information includes an index of the at least one codebook-pilot set. The second information includes information about the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas Information about the determined coding rate, such that the terminal device is in a transmission area and can be used for transmitting data, the number of unit time-frequency resources, the modulation order, and the coding rate. 49. Apparatus according to any one of claims 45 to 48 for determining the transport block size according to. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas 50. The apparatus according to any one of claims 45 to 49, comprising an index of the coding rate determined in. The transceiver is
Receiving uplink data sent by said terminal device on said N transmission areas according to a transport block size of N transmission areas, where N is less than or equal to M Is further configured to do receiving, which is an integer of
The processor is
The method according to any one of claims 45 to 50, further configured to perform decoding the uplink data on the N transmission areas according to the transport block sizes of the N transmission areas. The described device. 52. The apparatus according to any one of claims 45 to 51, wherein the first information includes time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. 53. A device according to any one of claims 45 to 52, comprising a second bit string used to indicate the resource block of the. Transmitting the instruction message to the terminal device by the transceiver,
Carrying the instruction message on a broadcast channel and transmitting the instruction message to all or some of the terminal devices served by the network device in a broadcast manner, or carrying the instruction message on a dedicated control channel, 54. Sending the indication message to a particular terminal device or a particular group of terminal devices served by the network device in a unicast manner. Equipment. 55. The device according to any one of claims 45 to 54, wherein the device is a network device. An uplink data transmission device,
A processor, a memory, a bus system and a transceiver, the processor, the memory and the transceiver being connected by using the bus system, the memory being configured to store instructions; Is configured to execute the instructions stored in the memory to control and signal the transceiver,
The transceiver is
Receiving an indication message sent by a network device, said indication message comprising first information and second information, said first information being M transmission areas allocated by said network device. The second information is used to indicate the transport block size of each transmission area of the M transmission areas, M is a positive integer, and the transmission area is a communication system. Representing an air interface time-frequency resource with a time range and frequency range specified by
The processor is
Selecting N transmission areas from the M transmission areas according to the first information, wherein N is a positive integer less than or equal to M, and
Determining the transport block size of each transmission area of the N transmission areas according to the second information,
The transceiver is
Further comprising: on each transmission area of the N transmission areas, transmitting uplink data to the network device according to the transport block size of each transmission area of the N transmission areas ,apparatus. The processor is
Selecting one constellation-pilot combination from a predetermined constellation-pilot set for each transmission area of the N transmission areas, wherein the constellation-pilot set includes a plurality of constellation-pilots. Including a combination, and
And generating an uplink pilot signal according to a pilot sequence in the constellation-pilot combination.
By the transceiver, on each transmission area of the N transmission areas, the uplink data is transmitted to the network device according to the transport block size of each transmission area of the N transmission areas,
According to the modulation constellation in the constellation-pilot combination, and according to the transport block size of each transmission area of the N transmission areas, the uplink data on each transmission area of the N transmission areas To create,
57. Transmitting the uplink pilot and the uplink data to the network device on each transmission area of the N transmission areas. The indication message further comprises third information, the third information being used to indicate at least one codebook-pilot set determined by the network device for each of the M transmission areas. Wherein the codebook-pilot set includes a plurality of codebooks, pilot sequences, and a combinatorial relationship between codebooks and pilot sequences,
The processor is
Determining at least one codebook-pilot set for each of the N transmission areas according to the third information;
Selecting, for each transmission area of the N transmission areas, one codebook-pilot combination from the at least one codebook-pilot set;
And generating an uplink pilot signal according to a pilot sequence in the codebook-pilot combination.
By the transceiver, on each transmission area of the N transmission areas, the uplink data is transmitted to the network device according to the transport block size of each transmission area of the N transmission areas,
Create the uplink data on each transmission area of the N transmission areas according to a codebook in the codebook-pilot combination and according to the transport block size of each transmission area of the N transmission areas. What to do
57. Transmitting the uplink pilot and the uplink data to the network device on each transmission area of the N transmission areas. The codebook includes two or more codewords, the codewords being a multidimensional complex vector used to represent a mapping relationship between data and at least two modulation symbols, and the at least two modulations. 59. The apparatus of claim 58, wherein the symbols include at least one zero modulation symbol and at least one non-zero modulation symbol. 60. The apparatus of claim 58 or 59, wherein the third information comprises an index of the at least one codebook-pilot set. The constellation-pilot combination has the following conditions:
Unit time in the transmission area and which can be used for transmitting data-number of frequency resources * modulation in constellation-pilot combination Modulation order of constellation> transport block size determined for said transmission area 58. The device of claim 57, which satisfies: The codebook-pilot combination has the following conditions:
The unit time-the number of frequency resources that are in the transmission area and can be used to transmit data * the modulation order of the codebook in the codebook-pilot combination> the transport block size determined for the transmission area 61. A device as claimed in claim 58 or 60 which satisfies. The second information includes information about a transport block size determined by the network device for each transmission area of the M transmission areas, or the second information is the M transmission areas Determining the transport block size of each transmission area of the N transmission areas according to the second information by the processor including information about a coding rate determined by the network device for each transmission area of But,
Each transmission area of the N transmission areas according to the number of unit time-frequency resources, modulation order, and the coding rate that are in each transmission area of the N transmission areas and can be used to transmit data 63. The apparatus of any one of claims 56-62, comprising: determining the transport block size of. The second information includes an index of the transport block size determined for each transmission area of the M transmission areas, or the second information, for each transmission area of the M transmission areas 63. The apparatus according to any one of claims 58 to 62, comprising an index of the coding rate determined in. 65. The apparatus according to any one of claims 56 to 64, wherein the first information includes time domain information and frequency domain information of each transmission area of the M transmission areas. The first information is a first bit string used to indicate a time-domain subframe of each transmission area of the M transmission areas, and a frequency domain of each transmission area of the M transmission areas. 66. A device according to any one of claims 56 to 65, comprising a second bit string used to indicate a resource block of the. 67. The device according to any one of claims 56 to 66, wherein the device is a terminal device.

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