JP6794389B2 - Information transmission and reception methods and devices - Google Patents

Description

Embodiments of the present invention relate to communication technology, in particular to information transmission and reception methods and devices.

Currently, the release of the Long Term Evolution (LTE) communication system applied to a base station or user equipment (User Equipment, abbreviated as UE) includes Release 8, Release 9, Release 10, and Release. 11, Release 12, and others are included.

LTE communication systems of different releases are primarily deployed for scenarios where, for example, uniform cells are present (ie, deployment is for scenarios primarily associated with macrocells). It supports different network architectures in current LTE communication systems such as systems. A large number of heterogeneous networks are used for deployment in LTE communication systems starting with Release 10 LTE communication system (ie, deployment is done by combining macrocells and microcells). With the deployment of LTE communication systems, channel propagation conditions are becoming more and more degraded, and large frequency spectra in high frequency bands and even ultra-high frequency bands (3.5 G hertz and even 10 to several tens of G hertz) are used. Will be. Under such channel propagation conditions, the widening of the Doppler spread results in large signal loss and increased interference between subcarriers.

With respect to the UE, the UE can support one or more LTE systems, and in order to meet the requirements of various communication application scenarios, the UE may type the UE according to the specific function of the UE (eg, eg). UEs used to handle common data or voice services, machine-type UEs used to handle small amounts of data, UEs used to handle delay-sensitive services, and broadcasts It may be further categorized as UE) used to receive services.

However, various releases of LTE communication systems in the prior art cannot support multiple types of network architectures with high efficiency and flexibility, and cannot support various channel propagation conditions with high efficiency and flexibility. It is possible, and it is not possible to support multiple types of UEs.

Embodiments of the present invention provide information transmission and reception methods and devices that allow LTE communication systems to support different network architectures and different types of UEs with high efficiency and flexibility.

According to the first aspect, one embodiment of the present invention is
The step of determining the downlink subframe used by the base station to transmit the first information to the user equipment UE, and
The base station provides an information transmission method including a step of transmitting a first piece of information to a UE by using a downlink subframe, wherein the downlink subframe is at least two subphysics. A first subframe containing a pair of resource blocks, a second subframe containing at least two pairs of physical resource blocks, or a third subframe containing at least one pair of subphysical resource blocks and at least one pair of physical resource blocks. Is a subframe of.

In the first possible implementation of the first aspect in relation to the first aspect, the length of the time domain occupied by the sub-physical resource block pair is greater than the length of the time domain occupied by the first subframe. A short, sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency-divided multiplex OFDM symbols, where two adjacent first subcarriers within a frequency domain The interval is greater than the set value, and both N1 and M1 are positive integers.

In the second possible implementation of the first aspect, which is related to the first possible implementation of the first aspect, the length of the time domain occupied by the physical resource block pair is occupied by the second subframe. Equal to the length of the time domain to be created, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subs within the frequency domain. The distance between carriers is equal to the set value, and both N2 and M2 are positive integers.

In the third possible implementation of the first aspect, which is related to the second possible implementation of the first aspect, N1 is equal to N2 and M1 is equal to M2.

In the fourth possible implementation of the first aspect, which is related to the second or third possible implementation of the first aspect, at least one physical resource block pair of the third subframe has the first frequency. The band is occupied, and at least one sub-physical resource block pair of the third subframe occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the fifth possible implementation of the first aspect, which is related to any one of the first to fourth possible implementations of the first aspect or the first aspect, the first information is provided by the base station. Before the step of transmitting to the UE by using a downlink subframe, the method
A step in which the base station sends to the UE a subframe type instruction used to point out that the downlink subframe is a first subframe, a second subframe, or a third subframe. Including further.

In the sixth possible implementation of the first aspect, which is related to the fourth or fifth possible implementation of the first aspect, when the downlink subframe is the third subframe, it depends on the base station. Before the step of transmitting the first information to the UE by using a downlink subframe, the method
Used by the base station to indicate to the UE that at least one pair of physical resource blocks occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. Further includes the step of transmitting a frequency band indication.

In the seventh possible implementation of the first aspect, which is related to the sixth possible implementation of the first aspect, the base station uses a downlink subframe to send the first information to the UE. The steps to send by
The step of transmitting a pair of physical resource blocks on the first frequency band that conveys the first information to the UE by the base station by using the first cyclic prefix CP length, or by the base station to the UE. On the other hand, it includes a step of transmitting a sub-physical resource block pair on the second frequency band for transmitting the first information by using the second CP length, where the first CP length is included. Is different from the second CP length.

In the eighth possible implementation of the first aspect, which is related to any one of the first to seventh possible implementations of the first aspect or the first aspect, the first information is:
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the ninth possible implementation of the first aspect, which is related to the eighth possible implementation of the first aspect, the control information for scheduling the downlink data channel is a resource allocation instruction for the downlink data channel. The resource allocation instruction for the downlink data channel is used to indicate the location of the physical resource block pair that is in the downlink subframe and assigned to the UE and the amount of the physical resource block pair. Alternatively, the resource allocation instructions for the downlink data channel are used to point out where the sub-physical resource block pairs are within the downlink subframe and assigned to the UE and the amount of the sub-physical resource block pairs. Or the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for the uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of the physical resource block pair and the amount of the physical resource block pair, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location of a pair of sub-physical resource blocks and the amount of the pair of sub-physical resource blocks.

In the tenth possible implementation of the first aspect, which is related to the ninth possible implementation of the first aspect, the control information for scheduling the downlink data channel is the transport block of the downlink data channel. Modulations that further include the modulation / encoding scheme used to point out the size, or the control information for scheduling the uplink data channel is used to point out the transport block size of the uplink data channel. / Includes further coding schemes.

According to the second aspect, one embodiment of the present invention is
The step of determining the downlink subframe transmitted by the user equipment UE and transmitted by the base station,
An information receiving method including a step of receiving the first information by the UE by using a downlink subframe.
The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, and at least one subphysical resource block pair. It provides a method of receiving information, which is one of a third subframe containing at least one pair of physical resource blocks and a third subframe.

In the first possible implementation of the second aspect in relation to the second aspect, the length of the time domain occupied by the sub-physical resource block pair is greater than the length of the time domain occupied by the first subframe. A short, sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency-divided multiplex OFDM symbols, where two adjacent first subcarriers within a frequency domain The interval is greater than the set value, and both N1 and M1 are positive integers.

In the second possible implementation of the second aspect, which is related to the first possible implementation of the second aspect, the length of the time domain occupied by the physical resource block pair is occupied by the second subframe. Equal to the length of the time domain to be created, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subs within the frequency domain. The distance between carriers is equal to the set value, and both N2 and M2 are positive integers.

In the third possible implementation of the second aspect, which is related to the second possible implementation of the second aspect, N1 is equal to N2 and M1 is equal to M2.

In the fourth possible implementation of the second aspect, which is related to the second or third possible implementation of the second aspect, at least one physical resource block pair of the third subframe has the first frequency. The band is occupied, and at least one sub-physical resource block pair of the third subframe occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the fifth possible implementation of the second aspect, which is related to any one of the first to fourth possible implementations of the second aspect or the second aspect, the UE performs the first information. The step of determining the downlink subframe to be transmitted and transmitted by the base station is
The UE receives a subframe type instruction transmitted by the base station used to point out that the downlink subframe is a first subframe, a second subframe, or a third subframe. Including steps.

In the sixth possible implementation of the second aspect, which is related to the fourth or fifth possible implementation of the second aspect, the UE causes the downlink subframe to be a third subframe. Before the step of receiving the information of 1 by using the downlink subframe, the method
To point out by the UE that at least one pair of physical resource blocks transmitted by the base station occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. It further includes a step of receiving the frequency band indication used.

In the seventh possible implementation of the second aspect, which is related to the sixth possible implementation of the second aspect, the step of receiving the first information by the UE by using a downlink subframe is
A step of receiving a physical resource block pair that is on the first frequency band and transmitted by the base station by the UE by using the first cyclic prefix CP length, which is on the first frequency band. The second CP length of the sub-physical resource block pair that is on the second frequency band and transmitted by the base station by the step of transmitting or receiving the first information, or by the UE. A step of receiving by using, which includes a step of receiving, where the sub-physical resource block pair on the second frequency band transmits and receives the first information, wherein the first CP length. Is different from the second CP length.

In the eighth possible implementation of the second aspect, which is related to any one of the first to seventh possible implementations of the second aspect or the second aspect, the first information is:
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the ninth possible implementation of the second aspect, which is related to the eighth possible implementation of the second aspect, the control information for scheduling the downlink data channel is a resource allocation instruction for the downlink data channel. The resource allocation instruction for the downlink data channel is used to indicate the location of the physical resource block pair that is in the downlink subframe and assigned to the UE and the amount of the physical resource block pair. Alternatively, the resource allocation instructions for the downlink data channel are used to point out where the sub-physical resource block pairs are within the downlink subframe and assigned to the UE and the amount of the sub-physical resource block pairs. Or the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for the uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of the physical resource block pair and the amount of the physical resource block pair, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location and quantity of sub-physical resource block pairs.

In the tenth possible implementation of the second aspect, which is related to the ninth possible implementation of the second aspect, the control information for scheduling the downlink data channel is the transport block of the downlink data channel. Modulations that further include the modulation / encoding scheme used to point out the size, or the control information for scheduling the uplink data channel is used to point out the transport block size of the uplink data channel. / Includes further coding schemes.

According to a third aspect, one embodiment of the present invention is
When the rate matching information is determined by the base station and the rate matching information is transmitted to the user equipment UE, and the rate matching information is received by the UE by using the downlink subframe. Used to point out a first time-frequency resource that the UE does not need to detect in the downlink subframe,
A step in which a base station determines a downlink subframe according to rate matching information and transmits the downlink subframe to a user device, wherein the downlink subframe includes at least two subframes.
Provide a method of transmitting information including.

In the first possible implementation of the third aspect, which is related to the third aspect, the first time-frequency resource includes all the time-frequency resources contained within at least one subframe, or The first time-frequency resource comprises at least one of a physical resource block, a sub-physical resource block, a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource is a resource element. The resource element group and the control channel element contain at least one, or the first time-frequency resource contains the resource pattern of the reference signal.

In the second possible implementation of the third aspect, which is related to the first possible implementation of the third aspect, the length of the time domain occupied by the subphysical resource block pair is occupied by one subframe. Shorter than the length of the time domain to be created, and the sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency division multiplex OFDM symbols, where two adjacent within the frequency domain. The distance between the first subcarriers is larger than the set value, and both N1 and M1 are positive integers.

In the third possible implementation of the third aspect, which is related to the second possible implementation of the third aspect, the length of the time domain occupied by the physical resource block pair is occupied by one subframe. Equal to the length of the time domain, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subcarriers within the frequency domain. The spacing between them is equal to the set value, and both N2 and M2 are positive integers.

In the fourth possible implementation of the third aspect, which is related to the third possible implementation of the third aspect, N1 is equal to N2 and M1 is equal to M2.

In the fifth possible implementation of the third aspect, which is related to the third or fourth possible implementation of the third aspect, the physical resource block pair occupies the first frequency band and the subphysical resources. The block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the sixth possible implementation of the third aspect, which is related to any one of the first to fifth possible implementations of the third aspect or the third aspect, the base station provides the rate matching information to the user. The step to send to the device UE is
It comprises a step of transmitting rate matching information to the UE by the base station by using Layer 1 or Layer 2 signaling.

In the seventh possible implementation of the third aspect, which is related to any one of the first to sixth possible implementations of the third aspect or the third aspect, the first time-frequency resource. The corresponding downlink subframe is a paging subframe or a sync signal transmission subframe.

In the eighth possible implementation of the third aspect, which is related to any one of the first to seventh possible implementations of the third aspect or the third aspect, the method is:
A step of transmitting a configuration message to a UE by a base station, wherein the configuration message includes at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information, and said. The configuration message is used in the uplink subframe to instruct the UE to send an uplink signal according to the configuration message, and the uplink subframe has the first time-frequency resource allocated to the downlink sub. It further includes a step of transmitting, which is an uplink subframe corresponding to the frame.

According to the fourth aspect, one embodiment of the present invention is
The step of receiving the rate matching information transmitted by the base station by the user equipment UE, and the UE goes down when the rate matching information receives the second information by using the downlink subframe. A tep, used to point out a first time-frequency resource that does not need to be detected in the link subframe,
A step of receiving a second piece of information transmitted in a downlink subframe according to rate matching information by the UE, wherein the downlink subframe contains at least two subframes.
Provide an information receiving method including.

In the first possible implementation of the fourth aspect in relation to the fourth aspect, the first time-frequency resource includes all the time-frequency resources contained within at least one subframe, or The first time-frequency resource comprises at least one of a physical resource block, a sub-physical resource block, a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource is a resource element. The resource element group and the control channel element contain at least one, or the first time-frequency resource contains the resource pattern of the reference signal.

In the second possible implementation of the fourth aspect, which is related to the first possible implementation of the fourth aspect, the length of the time domain occupied by the sub-physical resource block pair is occupied by one subframe. Shorter than the length of the time domain to be created, and the sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency division multiplex OFDM symbols, where two adjacent within the frequency domain. The distance between the first subcarriers is larger than the set value, and both N1 and M1 are positive integers.

In the third possible implementation of the fourth aspect, which is related to the second possible implementation of the fourth aspect, the length of the time domain occupied by the physical resource block pair is occupied by one subframe. Equal to the length of the time domain, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subcarriers within the frequency domain. The spacing between them is equal to the set value, and both N2 and M2 are positive integers.

In the fourth possible implementation of the fourth aspect, which is related to the third possible implementation of the fourth aspect, N1 is equal to N2 and M1 is equal to M2.

In the fifth possible implementation of the fourth aspect, which is related to the third or fourth possible implementation of the fourth aspect, the physical resource block pair occupies the first frequency band and the subphysical resources. The block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the sixth possible implementation of the fourth aspect, which is related to any one of the first to fifth possible implementations of the fourth aspect or the fourth aspect, by the user equipment UE, by the base station. The step of receiving the transmitted rate matching information is
It comprises the step of receiving the rate matching information transmitted by the base station by the UE by using Layer 1 or Layer 2 signaling.

In the seventh possible implementation of the fourth aspect, which is related to any one of the first to sixth possible implementations of the fourth aspect or the fourth aspect, the first time-frequency resource. The corresponding downlink subframe is a paging subframe or a sync signal transmission subframe.

In the eighth possible implementation of the fourth aspect, which is related to any one of the first to seventh possible implementations of the fourth aspect or the fourth aspect, the method is:
The step of receiving the configuration message transmitted by the base station by the UE, the configuration message contains at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information. Including, receiving steps and
A step in which the UE transmits an uplink signal in an uplink subframe according to a configuration message, wherein the uplink subframe corresponds to a downlink subframe in which a first time-frequency resource is allocated. Is the step to send and
Including further.

According to a fifth aspect, one embodiment of the present invention is
A subframe determination module configured to determine the downlink subframe used to send the first information to the user equipment UE,
A base station comprising a first transmission module configured to transmit first information to a UE by using a downlink subframe.
The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, or at least one subphysical resource block pair. It provides a base station, which is a third subframe containing at least one pair of physical resource blocks.

In the first possible implementation of the fifth aspect in relation to the fifth aspect, the length of the time domain occupied by the sub-physical resource block pair is greater than the length of the time domain occupied by the first subframe. A short, sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency-divided multiplex OFDM symbols, where two adjacent first subcarriers within a frequency domain The interval is greater than the set value, and both N1 and M1 are positive integers.

In the second possible implementation of the fifth aspect, which is related to the first possible implementation of the fifth aspect, the length of the time domain occupied by the physical resource block pair is occupied by the second subframe. Equal to the length of the time domain to be created, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subs within the frequency domain. The distance between carriers is equal to the set value, and both N2 and M2 are positive integers.

In the third possible implementation of the fifth aspect, which is related to the second possible implementation of the fifth aspect, N1 is equal to N2 and M1 is equal to M2.

In the fourth possible implementation of the fifth aspect, which is related to the second or third possible implementation of the fifth aspect, at least one physical resource block pair of the third subframe has the first frequency. The band is occupied, and at least one sub-physical resource block pair of the third subframe occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the fifth possible implementation of the fifth aspect, which is related to any one of the first to fourth possible implementations of the fifth aspect or the fifth aspect, the base station.
A second transmission module configured to transmit a subframe type instruction to the UE before the first information is transmitted to the UE by using a downlink subframe. The frame type indication further includes a second transmit module used to point out that the downlink subframe is a first subframe, a second subframe or a third subframe.

In the sixth possible implementation of the fifth aspect, which is related to the fourth or fifth possible implementation of the fifth aspect, the base station.
When the downlink subframe is the third subframe, the frequency band instruction is transmitted to the UE before the first information is transmitted to the UE by using the downlink subframe. In the third transmission module, at least one physical resource block pair occupies the first frequency band, and at least one sub-physical resource block pair occupies the second frequency band. It further includes a third transmit module, which is used to point out occupancy.

In the seventh possible implementation of the fifth aspect, which is related to the sixth possible implementation of the fifth aspect, the first transmit module
A pair of physical resource blocks on the first frequency band that conveys the first information is transmitted to the UE by using the first cyclic prefix CP length, or a second that transmits the first information. It is specifically configured to transmit a pair of sub-physical resource blocks on the frequency band of the above to the UE by using a second CP length, where the first CP length is the first. It is different from the CP length of 2.

In the eighth possible implementation of the fifth aspect, which is related to any one of the first to seventh possible implementations of the fifth aspect or the fifth aspect, the first information is:
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the ninth possible implementation of the fifth aspect, which is related to the eighth possible implementation of the fifth aspect, the control information for scheduling the downlink data channel is a resource allocation instruction for the downlink data channel. The resource allocation instruction for the downlink data channel is used to indicate the location of the physical resource block pair that is in the downlink subframe and assigned to the UE and the amount of the physical resource block pair. Alternatively, the resource allocation instructions for the downlink data channel are used to point out where the sub-physical resource block pairs are within the downlink subframe and assigned to the UE and the amount of the sub-physical resource block pairs. Or the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for the uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of the physical resource block pair and the amount of the physical resource block pair, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location of a pair of sub-physical resource blocks and the amount of the pair of sub-physical resource blocks.

In the tenth possible implementation of the fifth aspect, which is related to the ninth possible implementation of the fifth aspect, the control information for scheduling the downlink data channel is the transport block of the downlink data channel. Modulations that further include the modulation / encoding scheme used to point out the size, or the control information for scheduling the uplink data channel is used to point out the transport block size of the uplink data channel. / Includes further coding schemes.

According to the sixth aspect, one embodiment of the present invention is
A subframe determination module configured to transmit the first information and determine the downlink subframe transmitted by the base station.
A user device including a first receiving module configured to receive the first information by using a downlink subframe.
The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, and at least one subphysical resource block pair. And a third subframe containing at least one pair of physical resource blocks, which is any one of the user equipment.

In the first possible implementation of the sixth aspect, which is related to the sixth aspect, the length of the time domain occupied by the sub-physical resource block pair is greater than the length of the time domain occupied by the first subframe. A short, sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency-divided multiplex OFDM symbols, where two adjacent first subcarriers within a frequency domain The interval is greater than the set value, and both N1 and M1 are positive integers.

In the second possible implementation of the sixth aspect, which is related to the first possible implementation of the sixth aspect, the length of the time domain occupied by the physical resource block pair is occupied by the second subframe. Equal to the length of the time domain to be created, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subs within the frequency domain. The distance between carriers is equal to the set value, and both N2 and M2 are positive integers.

In the third possible implementation of the sixth aspect, which is related to the second possible implementation of the sixth aspect, N1 is equal to N2 and M1 is equal to M2.

In the fourth possible implementation of the sixth aspect, which is related to the second or third possible implementation of the sixth aspect, at least one physical resource block pair of the third subframe has the first frequency. The band is occupied, and at least one sub-physical resource block pair of the third subframe occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the fifth possible implementation of the sixth aspect, which is related to any one of the first to fourth possible implementations of the sixth aspect or the sixth aspect, the subframe determination module
Specific to receive subframe type instructions transmitted by the base station to indicate that the downlink subframe is a first subframe, a second subframe, or a third subframe. Is configured.

In the sixth possible mounting method of the sixth aspect, which is related to the fourth or fifth possible mounting method of the sixth aspect, the user equipment is subjected to the case where the downlink subframe is the third subframe. A second receiving module configured to receive a frequency band indication transmitted by a base station before the first information is received by using a downlink subframe, wherein the frequency band indication is A second receive, used to point out that at least one pair of physical resource blocks occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. Includes more modules.

In the seventh possible implementation of the sixth aspect, which is related to the sixth possible implementation of the sixth aspect, the first receiving module
Receiving a physical resource block pair that is on the first frequency band and transmitted by the base station by using the first cyclic prefix CP length, that is, the physical resource on the first frequency band. The block pair transmits and receives the first information, or receives the sub-physical resource block pair that is on the second frequency band and transmitted by the base station by using the second CP length. That is, the sub-physical resource block pair on the second frequency band is specifically configured to transmit and receive the first information, where the first CP length is Different from the second CP length.

In the eighth possible implementation of the sixth aspect, which is related to any one of the first to seventh possible implementations of the sixth aspect or the sixth aspect, the first information is:
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the ninth possible implementation of the sixth aspect, which is related to the eighth possible implementation of the sixth aspect, the control information for scheduling the downlink data channel is a resource allocation instruction for the downlink data channel. The resource allocation instruction for the downlink data channel is used to indicate the location of the physical resource block pair that is in the downlink subframe and assigned to the UE and the amount of the physical resource block pair. Alternatively, the resource allocation instructions for the downlink data channel are used to point out where the sub-physical resource block pairs are within the downlink subframe and assigned to the UE and the amount of the sub-physical resource block pairs. Or the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for the uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of the physical resource block pair and the amount of the physical resource block pair, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location and quantity of sub-physical resource block pairs.

In the tenth possible implementation of the sixth aspect, which is related to the ninth possible implementation of the sixth aspect, the control information for scheduling the downlink data channel is the transport block of the downlink data channel. Modulations that further include the modulation / encoding scheme used to point out the size, or the control information for scheduling the uplink data channel is used to point out the transport block size of the uplink data channel. / Includes further coding schemes.

According to a seventh aspect, one embodiment of the present invention is
An information determination module configured to determine rate matching information and transmit the rate matching information to the user equipment UE. In the rate matching information, the UE uses a downlink subframe for the second information. With an information determination module, which is used to point out a first time-frequency resource that the UE does not need to detect in the downlink subframe when receiving.
It is the first transmission module configured to determine the downlink subframe according to the rate matching information and transmit the downlink subframe to the user device, and the downlink subframe is at least two subframes. With the first transmit module, including
Provide base stations including.

In the first possible implementation of the seventh aspect, which is related to the seventh aspect, the first time-frequency resource includes all the time-frequency resources contained within at least one subframe, or The first time-frequency resource comprises at least one of a physical resource block, a sub-physical resource block, a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource is a resource element. The resource element group and the control channel element contain at least one, or the first time-frequency resource contains the resource pattern of the reference signal.

In the second possible implementation of the seventh aspect, which is related to the first possible implementation of the seventh aspect, the length of the time domain occupied by the subphysical resource block pair is occupied by one subframe. Shorter than the length of the time domain to be created, and the sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency division multiplex OFDM symbols, where two adjacent within the frequency domain. The distance between the first subcarriers is larger than the set value, and both N1 and M1 are positive integers.

In the third possible implementation of the seventh aspect, which is related to the second possible implementation of the seventh aspect, the length of the time domain occupied by the physical resource block pair is occupied by one subframe. Equal to the length of the time domain, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subcarriers within the frequency domain. The spacing between them is equal to the set value, and both N2 and M2 are positive integers.

In the fourth possible implementation of the seventh aspect, which is related to the third possible implementation of the seventh aspect, N1 is equal to N2 and M1 is equal to M2.

In the fifth possible implementation of the seventh aspect, which is related to the third or fourth possible implementation of the seventh aspect, the physical resource block pair occupies the first frequency band and the subphysical resources. The block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the sixth possible implementation of the seventh aspect, which is related to any one of the first to fifth possible implementations of the seventh aspect or the seventh aspect, the first transmit module
It is specifically configured to transmit rate matching information to the UE by using Layer 1 or Layer 2 signaling.

In the seventh possible implementation of the seventh aspect, which is related to any one of the first to sixth possible implementations of the seventh aspect or the seventh aspect, the first time-frequency resource. The corresponding downlink subframe is a paging subframe or a sync signal transmission subframe.

In the eighth possible implementation of the seventh aspect, which is related to any one of the first to seventh possible implementations of the seventh aspect or the seventh aspect, the base station.
A configuration module configured to send a configuration message to the UE, the configuration message being at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information. And the configuration message is used in the uplink subframe to instruct the UE to send the uplink signal according to the configuration message, and the uplink subframe allocates the first time-frequency resource. It further includes a configuration module, which is an uplink subframe corresponding to the downlink subframe.

According to the eighth aspect, one embodiment of the present invention is
When the first receiving module is configured to receive the rate matching information transmitted by the base station, and the rate matching information is received by the UE by using the downlink subframe. The first receive module, which is used to point out the first time-frequency resources that the UE does not need to detect in the downlink subframe,
A second receiving module configured to receive a second piece of information transmitted in a downlink subframe according to rate matching information, wherein the downlink subframe contains at least two subframes. Receiving module and
Provide user equipment including.

In the first possible implementation of the eighth aspect in relation to the eighth aspect, the first time-frequency resource comprises all the time-frequency resources contained within at least one subframe, or The first time-frequency resource comprises at least one of a physical resource block, a sub-physical resource block, a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource is a resource element. The resource element group and the control channel element contain at least one, or the first time-frequency resource contains the resource pattern of the reference signal.

In the second possible implementation of the eighth aspect, which is related to the first possible implementation of the eighth aspect, the length of the time domain occupied by the sub-physical resource block pair is occupied by one subframe. Shorter than the length of the time domain to be created, and the sub-physical resource block pair contains N1 first subcarriers and M1 first orthogonal frequency division multiplex OFDM symbols, where two adjacent within the frequency domain. The distance between the first subcarriers is larger than the set value, and both N1 and M1 are positive integers.

In the third possible implementation of the eighth aspect, which is related to the second possible implementation of the eighth aspect, the length of the time domain occupied by the physical resource block pair is occupied by one subframe. Equal to the length of the time domain, and the physical resource block pair contains N2 second subcarriers and M2 second OFDM symbols, where two adjacent second subcarriers within the frequency domain. The spacing between them is equal to the set value, and both N2 and M2 are positive integers.

In the fourth possible implementation of the eighth aspect, which is related to the third possible implementation of the eighth aspect, N1 is equal to N2 and M1 is equal to M2.

In the fifth possible implementation of the eighth aspect, which is related to the third or fourth possible implementation of the eighth aspect, the physical resource block pair occupies the first frequency band and the subphysical resources. The block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the sixth possible implementation of the eighth aspect, which is related to any one of the first to fifth possible implementations of the eighth aspect or the eighth aspect, the first receiving module
By using Layer 1 or Layer 2 signaling, it is specifically configured to receive rate matching information transmitted by the base station.

In the seventh possible implementation of the eighth aspect, which is related to any one of the first to sixth possible implementations of the eighth aspect or the eighth aspect, the first time-frequency resource. The corresponding downlink subframe is a paging subframe or a sync signal transmission subframe.

In the eighth possible mounting method of the eighth aspect, which is related to any one of the first to seventh possible mounting methods of the eighth aspect or the eighth aspect, the user equipment is
A third receiving module configured to receive configuration messages transmitted by a base station, the configuration messages of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information. A third receiving module, including at least one of them,
A transmission module configured to transmit an uplink signal in an uplink subframe according to a configuration message, the uplink subframe corresponding to the downlink subframe in which the first time-frequency resource is allocated. The link subframe, the transmit module,
Including further.

According to the information transmission and reception methods and devices provided in embodiments of the present invention, the base station determines the downlink subframes used to transmit information to the user equipment, and the base station tells the UE. The first information is transmitted by using a downlink subframe, and the downlink subframe includes a first subframe containing at least two subphysical resource block pairs, and at least two physical resource block pairs. A second subframe containing, or a third subframe containing at least one subphysical resource block pair and at least one physical resource block pair, whereby the LTE communication system has different network architectures and different types. It is possible to support the UE of the above with high efficiency and flexibility.

In order to more clearly explain the technical solutions in the embodiments of the present invention or in the prior art, the accompanying drawings required for the description of these embodiments and the prior art will be briefly introduced below. .. In the following description, the accompanying drawings merely show some embodiments of the present invention, and those skilled in the art will still derive other drawings from these attached drawings without creative effort. It will be clear that it can be done.

It is a flow chart of Embodiment 1 of the information transmission method by this invention. It is a schematic structural drawing of the 1st subframe by one Embodiment of this invention. It is a schematic structural drawing of the 2nd subframe by one Embodiment of this invention. It is a flow chart of Embodiment 1 of the information receiving method by this invention. It is a flow chart of Embodiment 1 of the information transmission and reception method by one Embodiment of this invention. It is a flow chart of Embodiment 2 of the information transmission method by this invention. It is a flow chart of Embodiment 2 of the information receiving method by this invention. It is a schematic structural drawing of Embodiment 1 of the base station by this invention. It is a schematic structural drawing of Embodiment 2 of the base station by this invention. It is a schematic structural drawing of Embodiment 1 of the user apparatus by this invention. It is a schematic structural drawing of Embodiment 2 of the user apparatus by this invention. It is a schematic structural drawing of Embodiment 3 of the base station by this invention. It is a schematic structural drawing of Embodiment 4 of the base station by this invention. It is a schematic structural drawing of Embodiment 3 of the user apparatus by this invention. It is a schematic structural drawing of Embodiment 4 of the user apparatus by this invention. It is a schematic structural drawing of Embodiment 5 of the base station by this invention. It is a schematic structural drawing of Embodiment 5 of the user apparatus by this invention. It is a schematic structural drawing of Embodiment 6 of the base station by this invention. It is a schematic structural drawing of Embodiment 6 of the user apparatus by this invention.

The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings relating to the embodiments of the present invention. It will be clear that the embodiments described are only part of, not all, of the embodiments of the present invention. All other embodiments acquired by one of ordinary skill in the art based on the embodiments of the present invention without any creative work shall fall within the protected area of the present invention.

FIG. 1 is a flow chart of the first embodiment of the information transmission method according to the present invention. As shown in FIG. 1, the information transmission method provided in this embodiment of the present invention can be performed by a base station. Base stations can be implemented using software and / or hardware. The information transmission method provided in this embodiment includes the following steps.

Step 101: The base station determines the downlink subframe used to transmit the first information to the user equipment UE.

Step 102: The base station transmits the first information to the UE by using a downlink subframe.

The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, and at least one subphysical resource block pair. And any one of a third subframe containing at least one pair of physical resource blocks.

LTE communication systems of different releases are primarily deployed for scenarios where, for example, uniform cells are present (ie, deployment is for scenarios primarily associated with macrocells). It supports different network architectures in current LTE communication systems such as systems. The coverage area of macrocells is relatively large, so from a statistical point of view, the amount of UEs serviced during each time period (or even at each moment) is relatively stable, and uniform cell deployment is achieved. The frequency selection scheduling gain and the multi-user scheduling gain can be met, and the specified cyclic prefix (CP for short) overhead is maintained to counter the multipath effect.

Since the LTE communication system of Release 10, especially in the LTE communication system of Release 12, which is currently standardized and will be the LTE system in the future, a large number of heterogeneous networks will be deployed (that is, macrocells and microcells). With the combination of deployments), the density of microcell deployments within macrocells will increase to improve high data rates at any point in time. Macrocells are primarily used to maintain coverage, radio resource control and mobility. Moreover, much of the future frequency spectrum is in the high frequency band (such as 3.5 GHz and higher frequency bands), and this high frequency band can provide a larger bandwidth. In mainstream deployment scenarios, inter-frequency deployment (inter-frequency) is used for macrocells and microcells to reduce interference between macrocells and microcells, and with macrocells to improve frequency spectrum utilization. The same frequency deployment for microcells may be considered.

Therefore, in step 101, the base station determines the downlink subframe used to transmit the first information to the UE according to the LTE release supported by the base station, the communication system architecture or the LTE release supported by the UE. There is a need to. In the optional option, the first information transmitted by the base station to the UE schedules the control information for scheduling the downlink data channel and the downlink data transmitted by the downlink data channel, or the uplink data channel. Includes control information, for setting.

In step 102, the base station transmits the first information to the UE by using a downlink subframe. The base station adds data and control information to the downlink subframe, which allows the UE to acquire the corresponding information.

Specifically, the downlink subframe in this embodiment is any one of a first subframe, a second subframe, and a third subframe.

The first subframe contains at least two subphysical resource block pairs, the second subframe contains at least two physical resource block pairs, and the third subframe contains at least one subphysical resource block pair and at least. Includes one physical resource block pair.

The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair consists of N1 first subcarriers and M1. Includes a first orthogonal frequency division multiplexing (OFDM) symbol, where the spacing between two adjacent first subcarriers within the frequency domain is greater than the set value and with N1. Both M1s are positive integers.

The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and M2th. It contains two OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional selection, the above-mentioned set values may be 15 KHz, 7.5 KHz, or the like.

FIG. 2 is a schematic structural diagram of a first subframe according to an embodiment of the present invention. In the LTE communication system, one radio frame contains 10 subframes, and the time domain length of each subframe is 1 ms. The first subframe is a newly introduced subframe that is also 1 ms in length and whose time-frequency domain contains multiple subphysical resource blocks (Resource Block, RB for short) pairs (pair). It is a frame, and the length of the time domain occupied by each sub-physical resource block pair is shorter than the length of the time domain of one subframe. For example, in FIG. 2, the first type of subframe contains 6 sub-physical resource block pairs for frequency domain width and 15 sub-physical resource block pairs for time domain length (15). (The length of the time domain of one subframe is occupied by the pair of sub-physical resource blocks), that is, the pair of sub-physical resource blocks becomes the pair of sub-physical resource blocks in the two dimensions of the time domain and the frequency domain. ing. Each sub-physical resource block pair contains 12 subcarriers in the frequency domain and 14 OFDM symbols in the time domain. The distance between two adjacent subcarriers of the first type of subframe is 250 KHz, the symbol time is 4 microseconds (much less than 66.67 microseconds), while the CP length is 0. It is shortened to 76 nanoseconds.

For those skilled in the art, in the specific implementation process, the frequency domain width and the time domain length are as long as the time domain length occupied by each sub-physical resource block pair is shorter than the time domain length of the subframe. It can be seen that the amount of sub-physical resource block pairs for is not a specific limitation in this embodiment.

FIG. 3 is a schematic structural diagram of a second subframe according to an embodiment of the present invention. The second subframe contains a plurality of physical resource block pairs for the frequency domain, and each physical resource block pair occupies the length of the time domain of the entire subframe. As shown in FIG. 3, the second subframe contains 100 physical resource block pairs for the frequency domain width, and each physical resource block contains 2 time slots. In a normal CP, one time slot contains seven OFDM symbols and the time domain length of each OFDM symbol is 66.67 microseconds. In the extended CP, if one time slot contains 6 symbols and the normal CP length is approximately 5 microseconds, the extended CP length is approximately 16 microseconds. As shown in FIG. 3, the physical resource block pair (RB Pair) includes time slot 0 and time slot 1, and each time slot contains 7 OFDM symbols. The physical resource block pair occupies 12 OFDM subcarriers in the frequency domain, the distance between the subcarriers is 15 KHz, and the duration of the OFDM symbol is 1 / (15 KHz) = 66.67 microseconds. ..

From the embodiments shown in FIGS. 2 and 3, the amount of transportable resource elements in the sub-physical resource block pair (12 subcarriers, 14 OFDM symbols) is the same as in the physical resource block pair. However, the duration of the OFDM symbol has been significantly reduced, the CP length has been significantly reduced, and the spacing between subcarriers has been significantly increased, which is more suitable for high density microcell deployments in the high frequency band. You can understand that. Specifically, the increased spacing between subcarriers can counteract larger Doppler spreads, reducing CP length with little impact on microcell deployment, but reducing overhead and sustaining OFDM symbols. Shortening the time can increase service delays, which is beneficial for sensitive services, while reducing the duration of OFDM symbols is also beneficial for interfering adjustments and improving network power efficiency. Specifically, compared to the structure of physical resource blocks, the structure of sub-physical resource block pairs can be used to quickly complete the transmission of the same amount of data. This is because the minimum time scheduling granularity for subphysical resource block pairs is much less than 1 ms. In this method, the microcell can complete more services to enter a sleep or closed state and implement cell-to-cell interference coordination in a time division manner.

The third subframe contains at least one subphysical resource block pair and at least one physical resource block pair. See FIG. 2 for the structure of the subphysical resource block pair in the third subframe. See FIG. 3 for the structure of the physical resource block pair in the third subframe.

In the optional option, at least one physical resource block pair in the third subframe occupies the first frequency band, and at least one subphysical resource block pair in the third subframe occupies the second frequency band. However, the first frequency band and the second frequency band do not overlap.

Specifically, in the third subframe, the physical resource block pair and the subphysical resource block pair coexist and are multiplexed by orthogonal frequency division (that is, the physical resource block pair in the third subframe is the first. The sub-physical resource block pair of the third subframe occupies the second frequency band, and the first frequency band and the second frequency band do not overlap).

According to the information transmission method provided in this embodiment of the present invention, the base station determines the downlink subframe used to transmit the information to the user equipment, and the base station determines the first information. It is transmitted to the UE by using a downlink subframe, where the downlink subframe sends a first subframe containing at least two subphysical resource block pairs, at least two physical resource block pairs. A second subframe containing, or a third subframe containing at least one subphysical resource block pair and at least one physical resource block pair, whereby the LTE communication system has different network architectures and different types. It is possible to support the UE of the above with high efficiency and flexibility.

FIG. 4 is a flow chart of the first embodiment of the information receiving method according to the present invention. As shown in FIG. 4, the information receiving method provided in this embodiment of the present invention can be performed by a user device. User equipment can be implemented using software and / or hardware. The information receiving method provided in this embodiment includes the following steps.

Step 401: The user equipment UE determines a downlink subframe that conveys the first information and is transmitted by the base station.

Step 402: The UE receives the first information by using the downlink subframe.

The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, and at least one subphysical resource block pair. And any one of a third subframe containing at least one pair of physical resource blocks.

The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair consists of N1 first subcarriers and M1. It contains a first OFDM symbol, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers.

The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and M2th. It contains two OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

N1 is equal to N2 and M1 is equal to M2.

In the optional selection, the above-mentioned set values may be 15 KHz, 7.5 KHz, or the like.

At least one pair of physical resource blocks in the third subframe occupies the first frequency band, and at least one pair of subphysical resource blocks in the third subframe occupies the second frequency band. The frequency band of No. 1 and the second frequency band do not overlap.

The use scenario of this embodiment is similar to that of the embodiment shown in FIG. 1, and the details are not described again in this embodiment. In step 401, the UE transmits the first information and determines the downlink subframe transmitted by the base station. Specifically, the UE is a subframe type used to point out that the downlink subframe transmitted by the base station is a first subframe, a second subframe, or a third subframe. Receive instructions. In step 402, the UE receives the first information by using the downlink subframe, where the first information is transmitted by the control information and the downlink data channel for scheduling the downlink data channel. Includes downlink data or control information for scheduling uplink data channels.

For the structure of the first subframe, refer to the embodiment shown in FIG. 2 (the details are not described again in this embodiment in this specification). For the structure of the second subframe, refer to the embodiment shown in FIG. 3 (the details are not described again in this embodiment in this specification). The third subframe contains at least one subphysical resource block pair and at least one physical resource block pair. See FIG. 2 for the structure of the sub-physical resource block pair of the third subframe. See also FIG. 3 for the structure of the physical resource block pair of the third subframe (details are not described again in this embodiment).

According to the information receiving method provided in this embodiment of the present invention, the UE determines a downlink subframe that transmits the first information and is transmitted by the base station, and the UE transmits the first information. , Received by using a downlink subframe, where the downlink subframe contains a first subframe containing at least two subphysical resource block pairs and a first subframe containing at least two physical resource block pairs. It is one of two subframes and a third subframe containing at least one subphysical resource block pair and at least one physical resource block pair, whereby the LTE communication system can be used in various networks. It is possible to support the architecture and various types of UEs with high efficiency and flexibility.

FIG. 5 is a flow chart of the first embodiment of the information transmission and reception method according to the embodiment of the present invention. In this embodiment, the information transmission and reception method of the present invention will be described in detail based on the embodiments shown in FIGS. 1 to 4.

Step 5011: The base station determines the downlink subframe used to transmit the first information to the user equipment UE.

Step 502: The base station sends to the UE a subframe type instruction used to point out that the downlink subframe is a first subframe, a second subframe, or a third subframe. To do.

Step 503: Subframe type instruction used by the UE to point out that the downlink subframe transmitted by the base station is a first subframe, a second subframe, or a third subframe. To receive.

Step 504: The base station transmits the first information to the UE by using a downlink subframe.

Step 505: The UE receives the first information by using the downlink subframe.

In this embodiment, step 501 is similar to step 101 and is not described in detail again in this embodiment.

In steps 502 and 503, the base station sends a subframe type instruction to the UE, and the UE points out that the downlink subframe is a first subframe, a second subframe, or a third subframe. Receive the subframe type indication used to do so. For those skilled in the art, in a specific implementation process, the base station and the UE preliminarily specify the base station and the UE as the first subframe, the second subframe, or the designated subframe structure of the third subframe. You can see that it can be preconfigured for storage. When the base station sends a subframe type instruction to the UE, the UE follows this subframe type instruction whether the subframe is specifically the first subframe, the second subframe, or the third subframe. It determines if it is a subframe and then receives the information transmitted by the base station in the corresponding subframe according to the structure of that subframe.

Optionally, if the downlink subframe is the third subframe, the method provided in this embodiment prior to step 504 is
Used by the base station to indicate to the UE that at least one pair of physical resource blocks occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. Steps to send frequency band instructions and
To point out by the UE that at least one pair of physical resource blocks transmitted by the base station occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. The step of receiving the frequency band indication used, and
Including further.

Correspondingly, step 504 sets the following possible implementations: a pair of physical resource blocks on the first frequency band that conveys the first information to the UE by the base station, the first cyclic prefix CP length. The step of transmitting by using, or the sub-physical resource block pair on the second frequency band that transmits the first information to the UE by the base station is transmitted by using the second CP length. Step,
It may be implemented in the form of.

Correspondingly, step 505 uses the first cyclic prefix CP length for the following possible implementations: a pair of physical resource blocks that are on the first frequency band and transmitted by the base station by the UE. A step of receiving by a physical resource block pair on the first frequency band transmitting and receiving the first information, or a step of receiving by the UE, which is on the second frequency band and transmitted by the base station. In the step of receiving the sub-physical resource block pair obtained by using the second CP length, the sub-physical resource block pair on the second frequency band transmits and receives the first information. It may be implemented in the form of a step, where the UE receives a pair of physical resource blocks that are on the first frequency band and transmitted by the base station by using the first CP length. And the UE receives the sub-physical resource block pair that is on the second frequency band and transmitted by the base station by using the second CP length, where the first CP length is the first. It is different from the CP length of 2.

In a specific implementation process, the base station transmits a sub-physical resource block pair and a physical resource block pair in a frequency division multiplexing system, and the UE receives a reference signal having the same configuration on the frequency band. For example, the UE receives a reference signal used for measurement such as a cell-specific reference signal CRS or a channel state information-reference signal CSI-RS on the frequency band of the physical resource block pair, and the frequency of the sub-physical resource block pair. The broadcast signal is received over the band, which simplifies the measurement step and eliminates the need for the UE to receive separate reference signals with different configurations in the two frequency bands.

In addition, physical resource block pairs and sub-physical resource block pairs are subject to carrier multiplexing or frequency division multiplexing within the same subframe, which improves flexibility, such as supporting different service types. It is possible to do. For example, the first frequency band is used for multicast service transmission and the extended CP is used, and the second frequency band is used for unicast service transmission and the normal CP is used.

In the optional option, based on the embodiments shown in FIGS. 1 to 5, the first information is control information for scheduling the downlink data channel and downlink data transmitted by the downlink data channel, or Includes control information for scheduling uplink data channels.

The control information for scheduling the downlink data channel includes the resource allocation instruction of the downlink data channel, and the resource allocation instruction of this downlink data channel is in the downlink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of the pair of physical resource blocks, or the resource allocation instructions for this downlink data channel were in a downlink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

Alternatively, the control information for scheduling the uplink data channel includes the resource allocation instruction of the uplink data channel, and the resource allocation instruction of this uplink data channel is in the uplink subframe and Used to indicate the location of a pair of physical resource blocks allocated to a UE and the amount of that pair of physical resource blocks, or the resource allocation instructions for this uplink data channel are in an uplink subframe and the UE. It is used to indicate the location of the sub-physical resource block pair assigned to and the amount of the sub-physical resource block pair.

Specifically, the control information for scheduling the downlink data channel and the control information for scheduling the uplink data channel may be collectively referred to as control information, and the downlink data channel and the uplink data channel are uploaded. The link data channel may be collectively referred to as a data channel. Those skilled in the art will understand that the base station may transmit the control information in the search space, and the user equipment acquires the specified control information from the search space by a blind detection method.

In addition, the control information for scheduling the downlink data channel further includes the modulation / encoding scheme used to point out the transport block size of the downlink data channel, or schedules the uplink data channel. The control information for this further includes the modulation / coding scheme used to point out the transport block size of the uplink data channel.

In the optional option, the control information further includes the modulation / coding scheme, and the resource allocation instructions are used to point out the location of the physical resource block pair within the downlink subframe and assigned to the UE. The UE determines the transport block size of the data channel according to the modulation / encoding method and the amount of physical resource block pairs transmitted at the location of the physical resource block pair, and downlinks according to this transport block size. Receives data or sends uplink data.

Alternatively, specifically, the UE searches the table according to resource allocation instructions and modulation / encoding schemes to determine the current transport block size, and finally the downlink data according to this transport block size. Decode. In this embodiment, the amount of resource elements in the sub-physical resource block pair is consistent with the amount of resource elements in the physical resource block pair (N1 is equal to N2 and M1 is equal to M2), and thus to the same physical resource block pair. The corresponding transport block size mapping table may be retrieved according to the resource allocation and modulation / coding scheme for the 2D subphysical resource block pair, which causes the original mapping table to be used and the table lookup scheme. Only can be guaranteed to change, which simplifies system design to reduce implementation complexity (ie, designing new transport block values and new tables). Does not require).

FIG. 6 is a flow chart of the second embodiment of the information transmission method according to the present invention. As shown in FIG. 6, the information transmission method provided in this embodiment of the present invention can be performed by a base station. Base stations can be implemented using software and / or hardware. The information transmission method provided in this embodiment includes the following steps.

Step 601: The base station determines the rate matching information and transmits the rate matching information to the user equipment UE. The rate matching information is for pointing out a first time-frequency resource that the UE does not need to detect in the downlink subframe when the UE receives the second information by using the downlink subframe. used

Step 602: The base station determines the downlink subframe according to the rate matching information, and transmits the downlink subframe to the user equipment. The downlink subframe contains at least two subframes.

The use scenario of this embodiment is similar to the use scenario of the embodiment shown in FIG. 1, and the details are not described again in this embodiment in this specification.

Specifically, when a new first time-frequency resource is introduced into a higher release LTE system or a future release LTE system, this higher release LTE system or future release LTE system will move forward. Supports compatibility. That is, if a new first time-frequency resource is introduced into a higher release LTE system or a future release LTE system, the higher release LTE system or future release LTE system will also be released from the previous release. Highly efficient support can be provided to the UE. In this embodiment, the new first time-frequency resource is circumvented by configuring rate matching information for the previous release UE so that future release LTE systems will not adversely affect the previous release UE. , And the specific implementation process is as follows.

In step 601 the base station follows the LTE release supported by the base station, the communication system architecture or the LTE release supported by the UE when the UE receives the second information by using the downlink subframe. It is necessary to determine the rate matching information used to point out the first time-frequency resource that does not need to be detected in the downlink subframe and to send the rate matching information to the user equipment. is there. The downlink subframe corresponding to the first time-frequency resource is a paging subframe or a sync signal transmission subframe. Specifically, the base station transmits rate matching information to the UE by using layer 1 signal transmission or layer 2 signal transmission.

In step 602, the base station determines the downlink subframe according to the rate matching information and transmits the downlink subframe to the user equipment. The downlink subframe contains at least two subframes.

According to the information transmission method provided in this embodiment, the base station requires the UE to detect in the downlink subframe when the UE receives the second information by using the downlink subframe. Along with determining the rate matching information used to point out the first time-frequency resource, the rate matching information is transmitted to the UE, and the base station contains at least two subframes according to the rate matching information. It determines the downlink subframe and sends the downlink subframe to the user equipment, which allows higher release LTE systems and future release LTE systems to provide highly efficient support for older releases of UEs. It is possible to provide and the LTE communication system can support various network architectures and various types of UEs with high efficiency and flexibility.

FIG. 7 is a flow chart of the second embodiment of the information receiving method according to the present invention. As shown in FIG. 7, the information receiving method provided in this embodiment of the present invention can be performed by a user device. This user equipment can be implemented by using software and / or hardware. The information receiving method provided in this embodiment includes the following steps.

Step 701: The user equipment UE receives the rate matching information transmitted by the base station. The rate matching information is for pointing out a first time-frequency resource that the UE does not need to detect in the downlink subframe when the UE receives the second information by using the downlink subframe. used.

Step 702: The UE receives the second information transmitted in the downlink subframe according to the rate matching information. The downlink subframe contains at least two subframes.

The use scenario of this embodiment is similar to that of the embodiment shown in FIG. 6, and the details are not described again in this embodiment.

In a specific implementation process, the UE receives rate matching information transmitted by the base station by using Layer 1 or Layer 2 signaling. When the downlink subframe transmitted by the base station is received according to the rate matching information, not all of the first time-frequency resources in the downlink subframe are detected, but the first time-frequency. Some of the resources are neither detected nor received (ie, some of the first time-frequency resources are skipped). The first time-frequency resource skipped by the UE may be specifically the first time-frequency resource not supported by the LTE release supported by the UE, and this first time- The downlink subframe corresponding to the frequency resource is a paging subframe or a synchronization signal transmission subframe.

According to the information receiving method provided in this embodiment, the user equipment UE is the downlink sub when the UE receives the second information transmitted by the base station by using the downlink subframe. Receives rate matching information used to point out a first time-frequency resource that does not need to be detected in a frame, and the UE according to the rate matching information is a downlink sub containing at least two subframes. While receiving a second piece of information transmitted in a frame, which allows older releases of the UE to be used for higher release LTE systems and future releases of LTE systems, LTE communication systems are also diverse. It is possible to support network architecture and various types of UE with high efficiency and flexibility.

Based on the above-described embodiments shown in FIGS. 6 and 7, there are a plurality of possible implementations for the first time-frequency resource, and these plurality of possible implementations are specifically as follows. is there.

In one possible implementation, the first time-frequency resource includes all time-frequency resources contained within at least one subframe.

In another possible implementation, the first time-frequency resource comprises at least one of a physical resource block, a sub-physical resource block, a physical resource block pair and a sub-physical resource block pair.

In the optional case, the length of the time domain occupied by the subphysical resource block pair is shorter than the length of the time domain occupied by one subframe, and the subphysical resource block pair is N1 first subcarriers and It contains M1 first OFDM symbols, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers.

The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by one subframe, and the physical resource block pair has N2 second subcarriers and M2 second. Includes the OFDM symbol of, where the spacing between two adjacent second subcarriers within the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

N1 is equal to N2 and M1 is equal to M2.

The physical resource block pair occupies the first frequency band, and the sub-physical resource block pair occupies the second frequency band, so that the first frequency band and the second frequency band do not overlap.

For the specific implementation method for the sub-physical resource block pair, refer to the embodiment shown in FIG. Also, refer to the embodiment shown in FIG. 3 for the specific implementation method for the physical resource block pair.

In yet another possible implementation, the first time-frequency resource comprises at least one of a resource element, a resource element group and a control channel element.

Specifically, a resource element is a subcarrier (ie, the smallest resource unit) in an OFDM symbol, and a resource element group is a number of resource elements (which can be continuous or discontinuous). The control channel element is the smallest unit of the control channel such as the physical downlink control channel (Physical Downlink Control Channel, abbreviated as PDCCH) or the extended physical downlink control channel (Enhanced Physical Downlink Control Channel, abbreviated as EPDCCH). Yes, and one control channel element can include several resource element groups.

In another possible implementation, the first time-frequency resource includes the resource pattern of the reference signal.

Specifically, the resource pattern of the reference signal may be a resource occupied by a cell-specific reference signal, a channel state information reference signal, a synchronization sequence, a UE-specific reference signal, or the like in the current LTE.

Based on the above-described embodiment, the base station transmits to the UE a configuration message including at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information, and also The UE receives this configuration message transmitted by the base station, and the UE follows the configuration message and is an uplink subframe that corresponds to the downlink subframe with the first time-frequency resource allocated. Sends an unlink signal at.

Specifically, the first time-frequency resource of the downlink subframe is not available to the UE. That is, it is necessary to skip the subframe. However, the uplink subframe corresponding to the downlink subframe may be configured to transmit an uplink signal to the UE. That is, using the uplink subframe and the downlink subframe separately and skipping the downlink subframe does not affect the use of the uplink subframe corresponding to the downlink subframe. The correspondence here is an uplink subframe corresponding to the time sequence relationship between the downlink data and the uplink affirmative response (Acknowledge, abbreviated as ACK) / negative response (Not Acknowledge, abbreviated as NACK) corresponding to the downlink data. And the uplink subframe and the downlink subframe corresponding to the uplink data and the downlink ACK / NACK time sequence relationship corresponding to the uplink data. It may or may include a correspondence between another uplink subframe and another downlink subframe, which are not limited herein.

FIG. 8 is a schematic structural diagram of a first embodiment of the base station 80 according to the present invention. As shown in FIG. 8, the base station 80 provided in this embodiment of the present invention includes a subframe determination module 801 and a first transmission module 802.

The subframe determination module 801 is configured to determine the downlink subframe used to transmit the first information to the user equipment UE.

The first transmission module 802 is configured to transmit the first information to the UE by using a downlink subframe.

The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, or at least one subphysical resource block pair. A third subframe containing at least one pair of physical resource blocks.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 9 is a schematic structural diagram of a second embodiment of a base station according to the present invention. As shown in FIG. 9, this embodiment is implemented based on the embodiment shown in FIG. 8, and is specifically as follows.

In the optional case, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 first subcarriers. And M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers within the frequency domain is greater than the set value, and both N1 and M1 are positive. Is an integer of.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and It contains M2 second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, at least one physical resource block pair in the third subframe occupies the first frequency band, and at least one subphysical resource block pair in the third subframe occupies the second frequency band. However, the first frequency band and the second frequency band do not overlap.

Optionally, the base station 80 is configured to send a subframe type instruction to the UE before the first information is sent to the UE by using the downlink subframe. Also includes the transmit module 803 of, where the subframe type indication is used to point out that the downlink subframe is a first subframe, a second subframe or a third subframe. Will be done.

In the optional case, the base station 80 tells the UE that the first information is transmitted to the UE by using the downlink subframe when the downlink subframe is the third subframe. It further includes a third transmit module 804 configured to transmit frequency band indications, wherein the frequency band indication is such that at least one pair of physical resource blocks occupies the first frequency band and at least. It is used to point out that one sub-physical resource block pair occupies a second frequency band.

In the optional case, the first transmission module 802
A pair of physical resource blocks on the first frequency band that conveys the first information is transmitted to the UE by using the first cyclic prefix CP length, or a second that transmits the first information. It is specifically configured to transmit a pair of sub-physical resource blocks on the frequency band of the above to the UE by using a second CP length, where the first CP length is the first. It is different from the CP length of 2.

In the optional, the first information is
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the optional option, the control information for scheduling the downlink data channel includes the resource allocation instruction for the downlink data channel, and the resource allocation instruction for this downlink data channel is in the downlink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this downlink data channel are in a downlink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

Alternatively, the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for this uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

In the optional option, the control information for scheduling the downlink data channel further includes the modulation / encoding scheme used to point out the transport block size of the downlink data channel, or the uplink data channel. The control information for scheduling further includes the modulation / coding scheme used to point out the transport block size of the uplink data channel.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 10 is a schematic structural diagram of the first embodiment of the user device 100 according to the present invention. As shown in FIG. 10, the user device 100 provided in this embodiment of the present invention includes a subframe determination module 1001 and a first receiving module 1002.

The subframe determination module 1001 is configured to transmit the first information and determine the downlink subframe transmitted by the base station.

The first receiving module 1002 is configured to receive the first information by using a downlink subframe.

The downlink subframe includes a first subframe containing at least two subphysical resource block pairs, a second subframe containing at least two physical resource block pairs, and at least one subphysical resource block pair. And any one of a third subframe containing at least one pair of physical resource blocks.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 11 is a schematic structural diagram of the second embodiment of the user device according to the present invention. As shown in FIG. 11, this embodiment of the present invention is implemented based on the embodiment shown in FIG. 10, and is specifically as follows.

In the optional case, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 first subcarriers. And M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers within the frequency domain is greater than the set value, and both N1 and M1 are positive. Is an integer of.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and It contains M2 second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, at least one physical resource block pair in the third subframe occupies the first frequency band, and at least one subphysical resource block pair in the third subframe occupies the second frequency band. However, the first frequency band and the second frequency band do not overlap.

In the optional selection, the subframe determination module 1001
Specific to receive subframe type instructions transmitted by the base station to indicate that the downlink subframe is a first subframe, a second subframe, or a third subframe. Is configured.

In an optional option, the user equipment 100 uses the frequency band transmitted by the base station before the first information is received by using the downlink subframe when the downlink subframe is the third subframe. It further comprises a second receive module 1003 configured to receive the instructions, wherein the frequency band indication is such that at least one pair of physical resource blocks occupies the first frequency band and at least one. It is used to point out that the sub-physical resource block pair occupies the second frequency band.

In the optional case, the first receiving module 1002
Receiving a physical resource block pair that is on the first frequency band and transmitted by the base station by using the first cyclic prefix CP length, that is, the physical resource on the first frequency band. The block pair transmits and receives the first information, or receives the sub-physical resource block pair that is on the second frequency band and transmitted by the base station by using the second CP length. That is, the sub-physical resource block pair on the second frequency band is specifically configured to transmit and receive the first information, where the first CP length is Different from the second CP length.

In the optional, the first information is
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the optional option, the control information for scheduling the downlink data channel includes the resource allocation instruction for the downlink data channel, and the resource allocation instruction for this downlink data channel is in the downlink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this downlink data channel are in a downlink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

Alternatively, the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for this uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to point out the location and quantity of sub-physical resource block pairs.

In the optional option, the control information for scheduling the downlink data channel further includes the modulation / encoding scheme used to point out the transport block size of the downlink data channel, or schedule the uplink data channel. The control information to set further includes the modulation / coding scheme used to point out the transport block size of the uplink data channel.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 12 is a schematic structural diagram of a third embodiment of the base station 120 according to the present invention. As shown in FIG. 12, the base station 120 provided in this embodiment of the present invention includes an information determination module 1201 and a first transmission module 1202.

The information determination module 1201 is configured to determine the rate matching information and transmit the rate matching information to the user equipment UE, where the UE uses a second information downlink subframe for the rate matching information. By this is used to point out a first time-frequency resource that the UE does not need to detect in the downlink subframe when receiving.

The first transmission module 1202 is configured to determine the downlink subframe according to the rate matching information and transmit the downlink subframe to the user equipment. The downlink subframe contains at least two subframes.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 13 is a schematic structural diagram of the fourth embodiment of the base station according to the present invention. As shown in FIG. 13, this embodiment of the present invention is implemented based on the embodiment shown in FIG. 12, and is specifically as follows.

In the option, the first time-frequency resource contains all time-frequency resources contained within at least one subframe, or the first time-frequency resource is a physical resource block, a sub-physical resource block. , Contains at least one of a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource contains at least one of a resource element, a resource element group, and a control channel element, or The first time-frequency resource includes the resource pattern of the reference signal.

In the option, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by one subframe, and the sub-physical resource block pair is N1 first subcarriers and It contains M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive. It is an integer.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by one subframe, and the physical resource block pair is N2 second subcarriers and M2. It contains two second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, the physical resource block pair occupies the first frequency band, the sub-physical resource block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the optional case, the first transmission module 1202
It is specifically configured to transmit rate matching information to the UE by using Layer 1 or Layer 2 signaling.

In the optional option, the downlink subframe corresponding to the first time-frequency resource is the paging subframe or the sync signal transmission subframe.

Optionally, the base station 120 further includes a configuration module 1203 configured to send a configuration message to the UE, wherein the configuration message includes uplink schedule setting information, uplink power control information, and a period. It contains at least one of the target uplink signal configuration information, and the configuration message is used to instruct the UE to transmit the uplink signal according to the configuration message in the uplink subframe, and the uplink. The subframe is an uplink subframe corresponding to the downlink subframe in which the first time-frequency resource is arranged.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 14 is a schematic structural diagram of the third embodiment of the user device 140 according to the present invention. As shown in FIG. 14, the user equipment 140 provided in this embodiment of the present invention includes a first receiving module 1401 and a second receiving module 1402.

The first receiving module 1401 is configured to receive the rate matching information transmitted by the base station. The rate matching information is for pointing out a first time-frequency resource that the UE does not need to detect in the downlink subframe when the UE receives the second information by using the downlink subframe. used.

The second receiving module 1402 is configured to receive the second information transmitted in the downlink subframe according to the rate matching information. The downlink subframe contains at least two subframes.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 15 is a schematic structural diagram of the fourth embodiment of the user device according to the present invention. As shown in FIG. 15, this embodiment of the present invention is implemented based on the embodiment shown in FIG. 14, and is specifically as follows.

In the option, the first time-frequency resource contains all time-frequency resources contained within at least one subframe, or the first time-frequency resource is a physical resource block, a sub-physical resource block. , Contains at least one of a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource contains at least one of a resource element, a resource element group, and a control channel element, or The first time-frequency resource includes the resource pattern of the reference signal.

In the option, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by one subframe, and the sub-physical resource block pair is N1 first subcarriers and It contains M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive. It is an integer.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by one subframe, and the physical resource block pair is N2 second subcarriers and M2. It contains two second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, the physical resource block pair occupies the first frequency band, the sub-physical resource block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the optional case, the first receiving module 1401
By using Layer 1 or Layer 2 signaling, it is specifically configured to receive rate matching information transmitted by the base station.

In the optional option, the downlink subframe corresponding to the first time-frequency resource is the paging subframe or the sync signal transmission subframe.

In the optional option, the user device 140
A third receiving module 1403 configured to receive a configuration message transmitted by the base station that includes at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information. When,
A transmission module 1404 configured to transmit an uplink signal in an uplink subframe, which is an uplink subframe corresponding to a downlink subframe in which a first time-frequency resource is allocated, according to a configuration message.
Including further.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 16 is a schematic structural diagram of a fifth embodiment of the base station 160 according to the present invention. As shown in FIG. 16, the base station 160 provided in this embodiment includes a processor 1601 and a memory 1602. The base station 160 may further include a transmitter 1603 and a receiver 1604. The transmitter 1603 and the receiver 1604 may be connected to the processor 1601, where the transmitter 1603 is configured to transmit data or information, and the receiver 1604 is configured to receive this data or information. And the memory 1602 stores the execution instructions, the processor 1601 communicates with the memory 1602 when the base station 160 operates, and the processor 1601 calls the execution instructions in the memory 1602.
The operation of determining the downlink subframe used by the base station to transmit the first information to the user equipment UE, and
The base station performs an operation of transmitting the first information to the UE by using a downlink subframe, wherein the downlink subframe contains at least two subphysical resource block pairs. A first subframe, a second subframe containing at least two physical resource block pairs, or a third subframe containing at least one subphysical resource block pair and at least one physical resource block pair. ..

In the optional case, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 first subcarriers. And M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers within the frequency domain is greater than the set value, and both N1 and M1 are positive. Is an integer of.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and It contains M2 second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, at least one physical resource block pair in the third subframe occupies the first frequency band, and at least one subphysical resource block pair in the third subframe occupies the second frequency band. However, the first frequency band and the second frequency band do not overlap.

In the optional option, before the operation of transmitting the first information to the UE by the base station by using the downlink subframe,
The action of sending a subframe type instruction to the UE by the base station, which is used to point out that the downlink subframe is a first subframe, a second subframe, or a third subframe. Is further included.

In the optional option, when the downlink subframe is the third subframe, before the operation of transmitting the first information to the UE by the base station by using the downlink subframe,
Used by the base station to indicate to the UE that at least one pair of physical resource blocks occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. Further includes the operation of transmitting frequency band indications.

In the optional case, the operation of transmitting the first information to the UE by the base station by using the downlink subframe is
The operation of transmitting a physical resource block pair on the first frequency band for transmitting the first information to the UE by the base station by using the first cyclic prefix CP length, or the operation of transmitting the first information to the UE by the base station. On the other hand, the operation of transmitting a sub-physical resource block pair on the second frequency band for transmitting the first information by using the second CP length is included, and here, the first CP length is included. Is different from the second CP length.

In the optional, the first information is
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the optional option, the control information for scheduling the downlink data channel includes the resource allocation instruction for the downlink data channel, and the resource allocation instruction for this downlink data channel is in the downlink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this downlink data channel are in a downlink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

Alternatively, the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for this uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

In the optional option, the control information for scheduling the downlink data channel further includes the modulation / encoding scheme used to point out the transport block size of the downlink data channel, or schedule the uplink data channel. The control information to set further includes the modulation / coding scheme used to point out the transport block size of the uplink data channel.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 17 is a schematic structural diagram of the fifth embodiment of the user device 170 according to the present invention. As shown in FIG. 17, the user equipment 170 provided in this embodiment includes a processor 1701 and a memory 1702. The user equipment 170 may further include a transmitter 1703 and a receiver 1704. The transmitter 1703 and the receiver 1704 may be connected to the processor 1701, where the transmitter 1703 is configured to transmit data or information, and the receiver 1704 is configured to receive this data or information. And the memory 1702 stores the execution instruction, the processor 1701 communicates with the memory 1702 when the user device 170 operates, and the processor 1701 calls the execution instruction in the memory 1702.
The operation of determining the downlink subframe transmitted by the user equipment UE and transmitted by the base station,
The operation of receiving the first information by the UE by using the downlink subframe and the operation are executed, where the downlink subframe is the first subframe containing at least two subphysical resource block pairs. And any one of a second subframe containing at least two physical resource block pairs and a third subframe containing at least one subphysical resource block pair and at least one physical resource block pair. It is one.

In the optional case, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 first subcarriers. And M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers within the frequency domain is greater than the set value, and both N1 and M1 are positive. Is an integer of.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair has N2 second subcarriers and It contains M2 second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, at least one physical resource block pair in the third subframe occupies the first frequency band, and at least one subphysical resource block pair in the third subframe occupies the second frequency band. However, the first frequency band and the second frequency band do not overlap.

In the optional case, the action of determining the downlink subframe transmitted by the UE and transmitted by the base station is
The UE receives a subframe type instruction transmitted by the base station used to point out that the downlink subframe is a first subframe, a second subframe, or a third subframe. Including operation.

In the optional option, when the downlink subframe is the third subframe, the UE receives the first information by using the downlink subframe before the operation of receiving it.
To point out by the UE that at least one pair of physical resource blocks transmitted by the base station occupies the first frequency band and at least one pair of sub-physical resource blocks occupies the second frequency band. The operation of receiving the frequency band indication used is further included.

In the optional option, the operation of receiving the first information by the UE by using the downlink subframe is
An operation of receiving a physical resource block pair that is on the first frequency band and transmitted by the base station by the UE by using the first cyclic prefix CP length, which is on the first frequency band. A second CP length of a sub-physical resource block pair that is on the second frequency band and transmitted by the base station by the operation of the physical resource block pair transmitting or receiving the first information, or by the UE. Is an operation of receiving by using, and includes an operation of transmitting and receiving the first information by the sub-physical resource block pair on the second frequency band, wherein the first CP length is included. Is different from the second CP length.

In the optional, the first information is
It includes control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel.

In the optional option, the control information for scheduling the downlink data channel includes the resource allocation instruction for the downlink data channel, and the resource allocation instruction for this downlink data channel is in the downlink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this downlink data channel are in a downlink subframe and assigned to the UE. It is used to indicate the location of the sub-physical resource block pair and the amount of the sub-physical resource block pair.

Alternatively, the control information for scheduling the uplink data channel includes the resource allocation instruction for the uplink data channel, and the resource allocation instruction for this uplink data channel is in the uplink subframe and is assigned to the UE. Used to point out the location of a pair of physical resource blocks and the amount of that pair of physical resource blocks, or the resource allocation instructions for this uplink data channel are in the uplink subframe and assigned to the UE. It is used to point out the location and quantity of sub-physical resource block pairs.

In the optional option, the control information for scheduling the downlink data channel further includes the modulation / encoding scheme used to point out the transport block size of the downlink data channel, or schedule the uplink data channel. The control information to set further includes the modulation / coding scheme used to point out the transport block size of the uplink data channel.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 18 is a schematic structural diagram of a sixth embodiment of the base station 180 according to the present invention. The base station 180 provided in this embodiment includes a processor 1801 and a memory 1802. Base station 180 may further include transmitter 1803 and receiver 1804. The transmitter 1803 and the receiver 1804 may be connected to the processor 1801, where the transmitter 1803 is configured to transmit data or information, and the receiver 1804 is configured to receive this data or information. And the memory 1802 stores the execution instruction, the processor 1801 communicates with the memory 1802 when the base station 180 operates, and the processor 1801 calls the execution instruction in the memory 1802.
The base station determines the rate matching information and transmits the rate matching information to the user equipment UE. The rate matching information is received by the UE by using the downlink subframe to receive the second information. The behavior, which is sometimes used to point out a first time-frequency resource that the UE does not need to detect in the downlink subframe,
The operation of determining the downlink subframe according to the rate matching information by the base station and transmitting the downlink subframe to the user equipment, wherein the downlink subframe includes at least two subframes.
To execute.

In the option, the first time-frequency resource contains all time-frequency resources contained within at least one subframe, or the first time-frequency resource is a physical resource block, a sub-physical resource block. , Contains at least one of a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource contains at least one of a resource element, a resource element group, and a control channel element, or The first time-frequency resource includes the resource pattern of the reference signal.

In the option, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by one subframe, and the sub-physical resource block pair is N1 first subcarriers and It contains M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive. It is an integer.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by one subframe, and the physical resource block pair is N2 second subcarriers and M2. It contains two second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, the physical resource block pair occupies the first frequency band, the sub-physical resource block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the optional option, the operation of transmitting rate matching information to the user equipment UE by the base station is
This includes an operation of transmitting rate matching information to the UE by the base station by using layer 1 signal transmission or layer 2 signal transmission.

In the optional option, the downlink subframe corresponding to the first time-frequency resource is the paging subframe or the sync signal transmission subframe.

In any option, this method
It further includes a step of transmitting a configuration message to the UE by the base station, wherein the configuration message contains at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information. Containing and said configuration message is used to instruct the UE to send an uplink signal according to the configuration message in the uplink subframe, causing the uplink subframe to allocate the first time-frequency resource. It is an uplink subframe corresponding to the downlink subframe.

The base station provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment set forth above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

FIG. 19 is a schematic structural diagram of a sixth embodiment of the user device 190 according to the present invention. As shown in FIG. 19, the user equipment 190 provided in this embodiment includes a processor 1901 and a memory 1902. User equipment 190 may further include transmitter 1903 and receiver 1904. A transmitter 1903 and a receiver 1904 may be connected to a processor 1901, where the transmitter 1903 is configured to transmit data or information, and the receiver 1904 is configured to receive this data or information. The memory 1902 stores the execution instruction, and when the user device 190 operates, the processor 1901 communicates with the memory 1902, and the processor 1901 calls the execution instruction in the memory 1902.
It is an operation of receiving the rate matching information transmitted by the base station by the user equipment UE, and the rate matching information is downlinked when the UE receives the second information by using the downlink subframe. The behavior and behavior used to point out a first time-frequency resource that does not need to be detected in the subframe.
The operation of receiving the second information transmitted by the UE in the downlink subframe according to the rate matching information, wherein the downlink subframe includes at least two subframes.
To execute.

In the option, the first time-frequency resource contains all time-frequency resources contained within at least one subframe, or the first time-frequency resource is a physical resource block, a sub-physical resource block. , Contains at least one of a physical resource block pair and a sub-physical resource block pair, or the first time-frequency resource contains at least one of a resource element, a resource element group, and a control channel element, or The first time-frequency resource includes the resource pattern of the reference signal.

In the option, the length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by one subframe, and the sub-physical resource block pair is N1 first subcarriers and It contains M1 first orthogonal frequency division multiplex OFDM symbols, where the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive. It is an integer.

In the optional case, the length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by one subframe, and the physical resource block pair is N2 second subcarriers and M2. It contains two second OFDM symbols, where the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.

In the optional option, N1 is equal to N2 and M1 is equal to M2.

In the optional option, the physical resource block pair occupies the first frequency band, the sub-physical resource block pair occupies the second frequency band, and the first frequency band and the second frequency band do not overlap.

In the optional option, the operation of receiving the rate matching information transmitted by the base station by the user equipment UE is
Includes the operation of receiving rate matching information transmitted by a base station by using Layer 1 or Layer 2 signaling by the UE.

In the optional option, the downlink subframe corresponding to the first time-frequency resource is the paging subframe or the sync signal transmission subframe.

In any option, this method
A step of receiving a configuration message by the UE, including at least one of uplink schedule setting information, uplink power control information, and periodic uplink signal configuration information, transmitted by the base station.
A step of transmitting an uplink signal according to a configuration message in an uplink subframe, which is an uplink subframe corresponding to a downlink subframe in which a first time-frequency resource is arranged by the UE.
Including further.

The user equipment provided in this embodiment of the present invention may be configured to implement the technical solution of the method embodiment described above. The mounting principle and technical effect are the same, and the details are not described again in this specification.

Those skilled in the art will appreciate that all or part of the steps of this method embodiment can be implemented by the hardware associated with the program instructions. The above-mentioned program may be stored in a computer-readable storage medium. When the program is run, the steps of this method embodiment are executed. The storage medium described above includes any medium such as a ROM, RAM, magnetic disk, or optical disk capable of storing a program code.

Finally, it should be noted that the embodiments described above are merely for the purpose of explaining the technical solutions of the present invention and not for the purpose of limiting the present invention. Although the present invention has been described in detail with reference to the above-described embodiment, those skilled in the art may still make modifications to the technical solution described in the above-described embodiment, or one of its technical features. It should be understood that equivalent substitutions can be made for parts or all (provided that they do not deviate from the technical solutions of embodiments of the present invention).

Claims (20)

The step of determining the downlink subframe used by the base station to transmit the first information to the user equipment (UE), and
An information transmission method comprising a step of transmitting the first information to the UE by the base station by using the downlink subframe.
Before SL downlink subframe, the first sub-frame with at least two sub-physical resource block pair, a second sub-frame with at least two physical resource blocks pairs, or at least one a third sub-frame with sub physical resource block pair and at least one physical resource block pair, when the downlink sub-frame is the third sub-frame, by the base station, the first Prior to the step of transmitting information of 1 to the UE by using the downlink subframe, the base station said that at least one pair of physical resource blocks occupies the first frequency band. A frequency band indication used to indicate that the at least one subphysical resource block pair occupies a second frequency band is transmitted to the UE.
The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 for the first subcarrier and the first subcarrier. It has M1 first orthogonal frequency division multiplex OFDM symbols, the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers. Yes,
The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair is N2 in the second subcarrier and M2. It comprises two second OFDM symbols, the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.
An information transmission method in which the set value is 15 KHz or 7.5 KHz. The method of claim 1, wherein N1 is equal to N2 and M1 is equal to M2. The method according to claim 1 or 2, wherein the first frequency band and the second frequency band do not overlap. The step of transmitting the first information to the UE by the base station by using the downlink subframe
The step of transmitting the physical resource block pair on the first frequency band for transmitting the first information to the UE by the base station by using the first cyclic prefix (CP) length. , Or the step of transmitting the sub-physical resource block pair on the second frequency band that transmits the first information to the UE by the base station by using the second CP length. Including
The method according to claim 1, wherein the first CP length is different from the second CP length. The first information is
Control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel,
The method according to any one of claims 1 to 4, further comprising. The step of determining the downlink subframe transmitted by the user equipment (UE) and transmitted by the base station,
An information receiving method including a step of receiving the first information by the UE by using the downlink subframe.
Before SL downlink subframe may include a first sub-frame with at least two sub-physical resource block pair, and a second sub-frame with at least two physical resource block pair, at least one be any one of the sub physical resource block pair and the third sub-frame with at least one physical resource block pair, the downlink sub-frame is in the third sub-frame In some cases, the UE may have at least one physical resource block pair in the first frequency band prior to the step of receiving the first information by the UE by using the downlink subframe. It receives a frequency band indication from the base station that occupies and is used to indicate that the at least one subphysical resource block pair occupies the second frequency band.
The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 for the first subcarrier and the first subcarrier. It has M1 first orthogonal frequency division multiplex OFDM symbols, the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers. Yes,
The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair is N2 in the second subcarrier and M2. It comprises two second OFDM symbols, the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.
An information receiving method in which the set value is 15 KHz or 7.5 KHz. The method of claim 6, wherein N1 is equal to N2 and M1 is equal to M2. The method according to claim 6 or 7, wherein the first frequency band and the second frequency band do not overlap. The step of receiving the first information by the UE by using the downlink subframe
The step of receiving the physical resource block pair on the first frequency band and transmitted by the base station by the UE by using the first cyclic prefix (CP) length. A step in which the physical resource block pair on one frequency band transmits or receives the first information, or a sub-physical resource that is on the second frequency band and transmitted by the base station by the UE. A step of receiving a block pair by using a second CP length, wherein the sub-physical resource block pair on the second frequency band transmits the first information. Includes
The method according to claim 6, wherein the first CP length is different from the second CP length. The first information is
Control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel,
The method according to any one of claims 6 to 9, further comprising. A subframe determination module configured to determine the downlink subframe used to transmit the first information to the user equipment (UE),
A base station comprising a first transmission module configured to transmit the first information to the UE by using the downlink subframe.
Before SL downlink subframe, the first sub-frame with at least two sub-physical resource block pair, a second sub-frame with at least two physical resource blocks pairs or least 1 also the third is a sub-frame, when the downlink sub-frame is the third subframe, the first information with a one sub physical resource block pair and at least one physical resource block pairs The base station has at least one pair of physical resource blocks occupying the first frequency band and said at least one subphysics before is transmitted to the UE by using the downlink subframe. A frequency band indication used to indicate that the resource block pair occupies the second frequency band is transmitted to the UE.
The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 for the first subcarrier and the first subcarrier. It has M1 first orthogonal frequency division multiplex OFDM symbols, the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers. Yes,
The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair is N2 in the second subcarrier and M2. It comprises two second OFDM symbols, the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.
A base station where the set value is 15 KHz or 7.5 KHz. The base station according to claim 11, wherein N1 is equal to N2 and M1 is equal to M2. The base station according to claim 11 or 12, wherein the first frequency band and the second frequency band do not overlap. The first transmission module
By using the first cyclic prefix (CP) length for the UE, it is possible to transmit the physical resource block pair on the first frequency band that conveys the first information, or to the UE. On the other hand, by using the second CP length, it is specifically configured to transmit the sub-physical resource block pair on the second frequency band that transmits the first information.
The base station according to claim 11, wherein the first CP length is different from the second CP length. The first information is
Control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel,
The base station according to any one of claims 11 to 14. A subframe determination module configured to transmit the first information and determine the downlink subframe transmitted by the base station.
A user device including a first receiving module configured to receive the first information by using the downlink subframe.
Before SL downlink subframe may include a first sub-frame with at least two sub-physical resource block pair, and a second sub-frame with at least two physical resource block pair, at least one be any one of the sub physical resource block pair and the third sub-frame with at least one physical resource block pair, the downlink sub-frame is in the third sub-frame In some cases, the user equipment has at least one physical resource block pair occupying the first frequency band and at least the user equipment before the first information is received by using the downlink subframe. A frequency band indication used to indicate that one subphysical resource block pair occupies a second frequency band is received from the base station.
The length of the time domain occupied by the sub-physical resource block pair is shorter than the length of the time domain occupied by the first subframe, and the sub-physical resource block pair is N1 for the first subcarrier and the first subcarrier. It has M1 first orthogonal frequency division multiplex OFDM symbols, the spacing between two adjacent first subcarriers in the frequency domain is greater than the set value, and both N1 and M1 are positive integers. Yes,
The length of the time domain occupied by the physical resource block pair is equal to the length of the time domain occupied by the second subframe, and the physical resource block pair is N2 in the second subcarrier and M2. It comprises two second OFDM symbols, the spacing between two adjacent second subcarriers in the frequency domain is equal to the set value, and both N2 and M2 are positive integers.
A user device in which the set value is 15 KHz or 7.5 KHz. The user device according to claim 16, wherein N1 is equal to N2 and M1 is equal to M2. The user device according to claim 16 or 17, wherein the first frequency band and the second frequency band do not overlap. The first receiving module
Receiving the physical resource block pair that is on the first frequency band and transmitted by the base station by using the first cyclic prefix (CP) length, the first frequency. The second physical resource block pair on the band transmits or receives the first information, or the sub-physical resource block pair on the second frequency band and transmitted by the base station. Specifically to receive by using the CP length of, the sub-physical resource block pair on the second frequency band transmits and receives the first information. Configured
The user device according to claim 16, wherein the first CP length is different from the second CP length. The first information is
Control information for scheduling a downlink data channel and downlink data transmitted by the downlink data channel, or control information for scheduling an uplink data channel,
The user device according to any one of claims 16 to 19.

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