WO2018058602A1

WO2018058602A1 - Method for sending information and terminal device thereof, method for receiving information and network device thereof

Info

Publication number: WO2018058602A1
Application number: PCT/CN2016/101256
Authority: WO
Inventors: 李�远; 李超君
Original assignee: 华为技术有限公司
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2018-04-05
Also published as: CN109792713A

Abstract

Provided is a method for sending information, comprising: determining a first time domain resource occupied by a first uplink control channel in an uplink sub-frame, wherein the first time domain resource is used for bearing first control information; determining a second time domain resource occupied by an uplink service channel in the uplink sub-frame, wherein the second time domain resource comprises the first time domain resource, and the length of the first time domain resource is less than the length of the second time domain resource; determining the first uplink control channel or the uplink service channel as a target channel according to the position of the first time domain resource in the uplink sub-frame; and sending the first control information on the target channel. By means of the embodiments of the present invention, according to the position, in an uplink sub-frame, of a channel on which conflict occurs, a target channel for sending current control information can be determined, thus solving the problem that a resource conflict occurs during the process of signal transmission.

Description

Method for transmitting information and terminal device thereof, method for receiving information and network device thereof

Technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a method for transmitting information, a terminal device thereof, a method for receiving information, and a network device thereof.

Background technique

Long Term Evolution (English: Long Term Evolution, abbreviated: LTE) system uses Orthogonal Frequency Division Multiplexing (OFDM) technology. The smallest resource unit used for data transmission is resource particles (English: Resource) Element, abbreviated: RE) corresponding to one OFDM symbol in the time domain and one subcarrier in the frequency domain; on this basis, the resource block (English: Resource Block, abbreviated: RB) is composed of multiple OFDM symbols in the time domain and The composition of consecutive subcarriers in the frequency domain is the basic unit of resource scheduling. The LTE uplink transmission uses a single carrier, and one RE corresponds to one single carrier frequency division multiple access (Single Carrier Frequency Division Multiplexing Access) symbol and one subcarrier in the frequency domain. The resource allocation of the LTE system is a time granularity with a transmission time interval (TTI, Transmission Time Interval) and a length of 1 ms, that is, one subframe. In the uplink transmission, one 1 ms TTI includes two slots, each slot. It is 7 OFDM symbols.

In order to further reduce the transmission delay of the LTE system and improve the user experience, Release 14 introduces a Latency Reduction technology to shorten the time domain granularity of resource allocation to a short transmission time interval (English: short TTI, abbreviated: sTTI) ), reducing the time of grouping and demodulation coding, thereby achieving the purpose of reducing the physical layer air interface delay. For uplink transmission, the optional length that sTTI may support includes 7 SC-FDMA symbols (SS, SC-FDMA Symbol), 2 SS, 2&3SS or 3&4SS, among which 2S3TI is a part of sTTI in one subframe. The length is 2SS, and the other part is sTTI length is 3SS. In the 3&4SS structure, each time slot contains two sTTIs, the first sTTI is 3 symbols in length, and the second sTTI is 4 symbols in length. The LTE system supporting short TTI transmission achieves backward compatibility with the legacy 1 ms TTI LTE system by frequency division multiplexing. In addition, in order to meet the different delay requirements of different users, the base station can configure different sTTI lengths for different users, and each user's different sTTI lengths can only be semi-statically adjusted between 2 SS or 2&3SS or 3&4SS or 7SS, but can Supports dynamic switching between the same sTTI length and a TTI length of 1 ms.

Since the packet length of the sTTI is reduced, the decoding speed and the packet speed are usually faster than 1 ms TTI, so the delay of scheduling and HARQ feedback is also shortened accordingly. For example, the downlink HARQ feedback delay is reduced from 4 ms of the existing 1 ms TTI to several sTTIs. duration.

In the sTTI system, the uplink control channel is used to transmit uplink control information, for example, the sPUCCH whose time granularity is used by the sTTI is used to transmit sUCI information. The uplink control channel (eg, sPUCCH) and the uplink traffic channel (including PUSCH and sPUSCH) are usually located on different frequency domain resources.

In an sTTI system, it is considered that in some scenarios, there is dynamic switching between a 1 ms TTI subframe and an sTTI subframe, and the scheduling delay for a 1 ms TTI subframe is usually larger than a scheduling or feedback delay for an sTTI subframe. Therefore, there is a case where an uplink traffic channel with a time granularity of 1 ms TTI collides with an uplink control channel with a time granularity of sTTI, that is, in the same uplink subframe, information needs to be transmitted on a 1 ms TTI uplink traffic channel, and also needs to be The information is sent on the sTTI uplink control channel. Considering that the capability of the user equipment (English: User Equipment, shorthand: UE) may not support the transmission of information on two different types of channels at the same time, how to deal with the problem that the 1ms uplink traffic channel and the short uplink control channel need to be transmitted simultaneously becomes The problem that needs to be solved in the uplink transmission design of the sTTI system.

Summary of the invention

In view of this, the embodiments of the present invention provide a method for transmitting information, a terminal device thereof, and a method for receiving information, and a network device thereof. In the same uplink subframe, when the signal is transmitted through the short TTI transmission mode and the long TTI transmission mode, the embodiment of the present invention can determine the transmission according to the position of the conflicting channel in the uplink subframe for the channel in which the resource conflict occurs. The target channel of the current control information solves the problem of resource conflict during signal transmission.

In a first aspect, a method for transmitting information includes: determining a first time domain resource occupied by a first uplink control channel in an uplink subframe; and determining a second occupied by an uplink traffic channel in the uplink subframe a time domain resource, the second time domain resource includes the first time domain resource, and the length of the first time domain resource is smaller than a length of the second time domain resource; Determining, in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel, where the first time domain resource is used to carry first control information; on the target channel Sending the first control information.

It should be understood that in a long TTI system, an uplink TTI is generally one subframe, and has a length of 1 ms, including two time slots, each time slot includes 7 uplink symbols, that is, a long TTI of 1 ms; for sTTI For the system, the optional length that sTTI may support includes 7 SS, 2 SS, 2 & 3 SS, and 3 & 4 SS, 1 SS, and so on. Specifically, in the 2&3SS structure, a part of the sTTI in one subframe has a length of 2SS, and another part of the sTTI has a length of 3SS. In the 3&4SS structure, each time slot includes two sTTIs, and the first sTTI has a length of 3 symbols, and a second The sTTI length is 4 symbols.

It should be understood that the first uplink control channel may be a short uplink control channel sPUCCH, and the time domain resource occupied by the sPUCCH is a first time domain resource, and the first time domain resource has a short transmission time interval sTTI as a time granularity, for example, the first The one-time domain resource is one sTTI in the uplink subframe; for the uplink traffic channel PUCCH, the uplink traffic channel occupies a subframe of 1 ms length.

Optionally, the first uplink control information includes at least one of the following information: a hybrid automatic repeat request (English: Hybrid Automatic Repeat reQuest, shorthand: HARQ) confirmation (English: Acknowledgement, shorthand: ACK) information, channel state information (English: Channel State Information, shorthand: CSI), Scheduling Request (English: Scheduling Request, abbreviated: SR). The CSI information may be sent by the UE periodically, or may be sent by the aperiodic scheduling UE. For example, the UE is scheduled by the downlink control channel PDCCH or the control information in the short downlink control channel sPDCCH, and the HARQ-ACK information is used to feed back the downlink data. The receiving status of the channel, the SR information is used to report the uplink data sending request to the base station.

Optionally, the first time domain resource occupied by the first uplink control channel in the uplink subframe may be determined by using at least one of the following manners:

Mode 1. The first time domain resource has a predefined timing relationship with the time domain resource of the corresponding downlink TTI, and the UE determines the first time domain resource according to the timing relationship; the uplink control information may be included in the downlink control channel. The control signaling indicates the acyclic CSI and the HARQ-ACK feedback sent by the UE, and therefore the first time domain resource and the TTI where the downlink control channel is located have a predefined timing relationship, for example, the nth downlink TTI The time domain resource occupied by the uplink control channel is the n+kth sTTI;

The second time domain resource is indicated by the control signaling included in the downlink control channel in the corresponding downlink TTI. The manner also applies to the downlink control channel indicating the uplink control information sent by the UE, such as aperiodic CSI and HARQ- ACK feedback, but compared to mode 1, the downlink control signaling additionally indicates a timing relationship; for example, the control signaling included in the nth downlink TTI indicates that the time domain resource occupied by the uplink control channel is the n+k+x sTTI;

Mode 3. The first time domain resource is configured by high-level radio resource control (English: Radio Resource Control, RRC) signaling, and is configured to send the first uplink on the periodic time domain resource. Control information, which applies to aperiodic uplink control information, such as periodic CSI and periodic SR information. The downlink control channel includes a PDCCH or an sPDCCH.

It should be understood that the occupied radio resources of the first uplink control channel in the uplink subframe include at least one of a time domain, a frequency domain, a code domain, and a spatial domain resource. The time domain resource is the foregoing first time domain resource; at least one of the frequency domain, the code domain, and the airspace resource may receive configuration and indication signaling of the base station. Specifically, there are three ways. Manner 1: The frequency/code/space radio resource of the uplink control channel is explicitly or implicitly notified to the UE by using control signaling in the downlink control channel, where the implicit indication includes the downlink radio resource mapping occupied by the downlink control channel. Obtaining the frequency/code/space radio resource of the uplink control channel, for example, implicitly mapping to the uplink resource sequence by using the CCE sequence number; and explicitly indicating that the base station indicates the frequency/code/space radio resource by using the control signaling included in the downlink control channel. Mode 2: The base station configures frequency/code/airspace radio resources through high layer RRC signaling. Manner 3: The base station configures a resource set available for the uplink control channel by using RRC signaling, and then the control signal included in the downlink control channel indicates the sequence number in the resource set to enable the UE to obtain a specific frequency/code/airspace radio resource, such as an RRC message. The uplink control channel resource set configured for the UE includes four available uplink resources, and the base station notifies the UE which uplink resource is specifically selected by using 2-bit downlink control signaling. The downlink control channel includes a PDCCH or an sPDCCH.

It should be understood that the first uplink control channel is a physical uplink control channel carrying the first uplink control information, that is, if the UE does not schedule the uplink traffic channel in the current uplink subframe or determines that the first uplink is not required to be sent on the uplink traffic channel. For the control information, the first uplink control information is sent on the radio resource of the uplink control channel.

It should be understood that the occupied radio resources of the uplink traffic channel in the uplink subframe include at least one of a time domain, a frequency domain, a code domain, and a spatial domain resource. The time domain resource is similar to the notification manner of the time domain resource of the first uplink control information in the uplink subframe, and at least one of the frequency domain, the code domain, and the airspace resource may receive configuration and indication signaling of the base station. Specifically, the frequency/code/space radio resource of the uplink control channel can be explicitly notified to the UE by using control signaling in the downlink control channel. For example, the base station indicates, in the uplink scheduling signaling, a specific frequency domain resource set in which the UE sends uplink data.

It should be understood that the second time domain resource includes the first time domain resource, where at least part of the first time domain resources occupied by the first uplink control channel completely fall into the second time domain resource occupied by the uplink traffic channel. That is, some resources of the second time domain resource overlap with some resources of the first time domain resource in time.

It should be understood that the second time domain resource includes the first time domain resource, where the first uplink control channel is The occupied first time domain resource completely falls within the second time domain resource occupied by the uplink traffic channel, that is, part of the resources of the second time domain resource and the first time domain resource completely coincide in time, and the foregoing situations are all It can be understood that the first uplink control channel collides with the uplink traffic channel. If the first time domain resource does not overlap with the second time domain resource, the information transmission on the first uplink control channel and the uplink traffic channel does not affect each other; otherwise, the UE may not support simultaneous transmission on both channels at the same time. The information thus requires the solution of the present invention to solve the sub-technical problem.

It should also be understood that the signal transmitted on the uplink traffic channel includes uplink data information and a demodulation reference signal (English: DeModulation Reference Signal, DMRS), and the first control information may need to occupy one or more uplinks of the first time domain resource. The symbol performs data transmission. When determining that the uplink traffic channel is the target channel, the first control information is sent on the target channel, which refers to piggybacking the first control information to an uplink traffic channel that is close to one of the DMRS symbols or The transmission on a plurality of symbols may be, for example, 1 to 2 symbols before the DMRS, or 1 to 2 symbols after the D MRS.

It should be understood that when the first uplink control channel and the uplink traffic channel collide in the same uplink subframe, the first uplink control information that needs to be carried by the first uplink control channel is sent to the uplink traffic channel, and is not corresponding. The first uplink control channel is sent, that is, the resources of the first uplink control channel are vacated and no information is sent. Specifically, the uplink data information on the second time-frequency resource corresponding to the uplink traffic channel is deleted, and the first control information is mapped on the time-frequency resource corresponding to the uplink traffic channel, that is, the uplink traffic channel piggyback uplink control information.

It should be understood that the signal carried by the uplink control channel includes a control channel demodulation reference signal DMRS and uplink control information, and the base station may acquire channel state information through the control channel DMRS, and demodulate the uplink control information by using the channel state information. The first time domain resource occupied by the first uplink control channel includes at least one uplink symbol, and the at least one uplink symbol may be an uplink symbol that carries the first uplink control information, and may also include a symbol and uplink control that carries the first uplink control information. Channel DMRS symbol. For example, the first uplink control channel sPUCCH is on the first sTTI of the length 2SS, the first SS is the control channel DMRS, the second SS is used to carry the symbol of the sUCI, and the first time domain resource occupied by the sPUCCH may be the first Two SSs can also be the first SS plus the second SS. The third time domain resource occupied by the second control channel includes at least one uplink symbol, and the at least one uplink symbol may be an uplink symbol carrying the first uplink control information, or may be a symbol carrying the first uplink control information and a control channel DMRS. Symbol, similar to the first time domain resource, will not be described again.

The embodiment of the invention provides a method for transmitting information, a terminal device thereof, and a network device. In the same uplink subframe, when the signal is transmitted through the short TTI transmission mode and the long TTI transmission mode, the embodiment of the present invention can determine the transmission according to the position of the conflicting channel in the uplink subframe for the channel in which the resource conflict occurs. The target channel of the current control information solves the problem of resource conflict during signal transmission.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first uplink control channel or the foregoing, according to a location of the first time domain resource in the uplink subframe Determining, by the uplink traffic channel, a target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel, determining that the first uplink control channel is the target a channel; if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.

It should be understood that the uplink symbol in the first time domain resource is earlier than the uplink symbol occupied by the DMRS, for example, the first time domain resource is earlier than the uplink symbol occupied by the DMRS. For example, the first time domain resource may be the first time domain resource. An uplink symbol is compared with the uplink symbol occupied by the DMRS, and the last uplink symbol in the first time domain resource is compared with the uplink symbol occupied by the DMRS, which is not limited in the present invention.

Specifically, if the first time domain resource is earlier than the DMRS, if the first uplink information is piggybacked and sent to the PUSCH, the base station waits until the DMRS is received to correctly demodulate the first uplink information, so The waiting delay of the control information shall be sent to the first uplink control channel; if the first time domain resource is not earlier than the DMRS, for example, including the symbol of the DMRS or later than the symbol of the DMRS, the base station is in the demodulation The channel state information is obtained before the uplink control information, and the received first uplink control information can be directly demodulated without causing the control information demodulation delay.

It should be understood that, if it is determined that the first uplink control channel is used as the target channel, and the first uplink control information is sent on the first uplink control channel, the first uplink control channel may not be sent or discarded in the same subframe. All or part of the data information of the traffic channel.

Optionally, if it is determined that the first uplink control channel is used as the target channel, and the first uplink control information is sent on the first uplink control channel, in the same subframe, the first uplink control channel may be in the uplink traffic channel. The data information carried on the corresponding uplink symbol and the subsequent symbols are discarded and not transmitted. At this time, if the uplink traffic channel has not been transmitted, all the data information of the uplink traffic channel is discarded.

Therefore, after the partial symbols are removed on the uplink traffic channel, the current subframe is uplinked. It is very likely that the data packet in the channel cannot be correctly demodulated, and further, there may be a new uplink control channel with uplink control information to be transmitted, and the UE also discards the data on the corresponding symbol of the uplink traffic channel. The information is discarded, so that the symbol corresponding to the earliest one of the uplink control channels and the data information carried on the subsequent symbols are discarded, which can save UE power.

Optionally, if it is determined that the first uplink control channel in the current uplink subframe is used as the target channel, and no other control information needs to be sent on the other control channel, only the first uplink control channel is discarded. Corresponding to the data information carried by the symbols on the uplink traffic channel, the symbol is punctured on the uplink traffic channel.

Therefore, if only one uplink control information in the uplink subframe needs to send control information, and the number of uplink symbols occupied is small, it is possible that the data information of the corresponding symbol on the uplink traffic channel is discarded, and the uplink service data packet may still be correctly demodulated, so continue Transmitting the service data carried on the subsequent uplink traffic channel symbols can increase the probability of correctly demodulating the uplink service data.

With reference to the first aspect, and the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the location according to the first time domain resource in the uplink subframe Determining the first uplink control channel or the uplink traffic channel as a target channel, including: when the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the When the one-time domain resource is the first sTTI of one time slot in the uplink subframe, the uplink control channel is determined as the target channel.

That is, when the sTTI occupied by the first time domain resource is the first sTTI in the uplink subframe, or is a time slot included in the uplink subframe (for example, it may be the first time slot, or may be The first sTTI of the two time slots) determines that the first uplink control channel is the target channel, and transmits the first control information on the first uplink control channel.

Optionally, when the sTTI occupied by the first time domain resource is the first sTTI in the uplink subframe, the first uplink control channel is determined as the target channel, and the first control information is used in the first uplink control channel. When the sTTI occupied by the first time domain resource is not the first sTTI in the uplink subframe, it is determined that the uplink traffic channel is the target channel, and the first control information is sent on the uplink traffic channel.

Optionally, when the first time domain resource occupies the first sTTI of one time slot included in the uplink subframe, the first uplink control channel is determined as the target channel, and the first control information is used in the foregoing first uplink control. Transmitting on the channel; when the first time domain resource is not the first sTTI in one slot included in the uplink subframe, then determining that the uplink traffic channel is the target channel, and the first control information is It is transmitted on the above uplink traffic channel.

Optionally, determining, according to the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel, including: if the first The time domain resource is located before the uplink symbol occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel, and the second time between the first time domain resource and the uplink symbol occupied by the DMRS corresponding to the uplink traffic channel If the time interval is greater than the second time length, the second determining the first uplink control channel is the target channel; otherwise, determining that the uplink traffic channel is the target channel.

It should be understood that the second time length may be predefined, or may be notified by the base station to the UE. Specifically, the base station may be configured through broadcast signaling, may also be configured through RRC high-level signaling, or may be indicated by downlink control channel signaling. . The second time length may be at least one uplink symbol, or may be at least one uplink transmission time interval TTI, for example, n TTIs, where n is an integer greater than or equal to 1.

It should be understood that the second time interval is a time interval between one of the uplink symbols included in the first time domain resource and an uplink symbol occupied by the DMRS in the uplink control channel. For example, the first time interval may be a time interval between a first uplink symbol included in the first time domain resource and an uplink symbol occupied by the DMRS, and may be a last uplink symbol and a DMRS included in the first time domain resource. The time interval between the upstream symbols is not limited by the present invention.

With reference to the first aspect and the foregoing implementation manner, in a third possible implementation manner of the first aspect, the first uplink is performed according to a location of the first time domain resource in the uplink subframe Determining, by the control channel or the uplink traffic channel, a target channel, the time interval between the time resources occupied by the demodulation reference signal DMRS corresponding to the first time domain resource and the uplink traffic channel is greater than the first time Determining, the length of the first uplink control channel is the target channel; when the time interval between the time resources occupied by the DMRS of the first time domain resource is not greater than the first time length, determining The uplink traffic channel is the target channel.

It should be understood that the first time length may be predefined, or may be notified by the base station to the UE. Specifically, the base station may be configured through broadcast signaling, may also be configured through RRC high-level signaling, or may be indicated by downlink control channel signaling. . The first time length may be at least one uplink symbol, or may be at least one uplink transmission time interval TTI, for example, n TTIs, where n is an integer greater than or equal to 1.

It should be understood that the first time interval is a time interval between one of the uplink symbols included in the first time domain resource and an uplink symbol occupied by the DMRS in the uplink control channel. For example, the first time The interval between the first uplink symbol included in the first time domain resource and the uplink symbol occupied by the DMRS may be the last uplink symbol included in the first time domain resource and the uplink symbol occupied by the DMRS. The time interval between the two is not limited in the present invention.

It should also be understood that the first time length may be equal to the second time length or may not be equal, and the invention is not limited thereto.

Therefore, considering that even if the first time domain resource is after the DMRS, if the distance from the DMRS is relatively long, the time-varying characteristic of the channel may cause the channel state at the DMRS time to be different from the channel state at the time of the first uplink control information, and the first uplink is The demodulation accuracy of the control information is affected, resulting in an increase in the probability of demodulation failure. The embodiment of the present invention determines on which channel to transmit according to the time interval between the first time domain resource and the DMRS. If the time interval between the first time domain resource and the first time length exceeds the first time length, the first uplink control information is sent on the first uplink control channel, if the time interval between the first time domain resource and the first time does not exceed the first time For the length, the first uplink control information is sent on the uplink traffic channel, which can reduce the probability of demodulation failure.

Therefore, when the first uplink control channel and the uplink traffic channel collide in the same uplink subframe, the UE adaptively selects according to the position of the first time domain resource occupied by the first uplink control channel in the uplink subframe. Sending the first uplink control information on an uplink control channel or transmitting the first uplink control information on the uplink traffic channel can ensure that the demodulation delay of the first uplink control information is not affected as much as possible while avoiding performance degradation of the uplink data information. .

With reference to the first aspect and the foregoing implementation manner, in a fourth possible implementation manner of the first aspect, the first uplink is performed according to a location of the first time domain resource in the uplink subframe Determining, as the target channel, the control channel or the uplink traffic channel includes: determining to send information on the second uplink control channel, the second uplink control channel occupies a third time domain resource, and the second time domain resource includes the The third time domain resource, where the length of the second time domain resource is greater than the length of the third time domain resource, determines the first uplink control channel as the target channel.

It should be understood that the meaning of the second time domain resource including the third time domain resource is similar to the second time domain resource including the first time domain resource, and details are not described herein.

It should be understood that when the first uplink control channel is determined as the target channel, the second uplink control channel may or may not be transmitted, or the second uplink control channel may not be transmitted yet.

That is, if the UE is also configured by the base station or indicates that the second uplink control information needs to be sent, and the second uplink control information is determined to be sent on the second uplink control channel, the current uplink subframe needs to be sent on the uplink traffic channel. All data information is discarded or needs to be discarded, or The data information of the second uplink control channel corresponding to the symbol position of the uplink traffic channel is discarded or needs to be discarded. In this case, if the UE needs to send the first uplink control information in the same uplink subframe, The third time domain resource is later than the uplink symbol occupied by the DMRS corresponding to the uplink traffic channel or the uplink symbol occupied by the DMRS corresponding to the uplink traffic channel, although the UE may also choose to piggyback the first uplink control information to the uplink traffic channel. Sending, but since the demodulation performance of the uplink traffic channel may be worse than the first uplink control channel, and the first uplink control information is still piggybacked onto the uplink traffic channel, the performance loss of the uplink data information may not be avoided, so in this case, The first uplink control information may still be transmitted on the first uplink control channel.

Optionally, the method for determining whether the second control information is sent on the second uplink control channel or the uplink traffic channel is similar to the method for selecting the target channel by using the first control information, and details are not described herein again.

Optionally, the UE does not need to use the second uplink control channel to send the second control information in the uplink subframe, and the relative relationship between the first time domain resource and the uplink symbol occupied by the DMRS satisfies the foregoing condition (for example, The first time domain resource is later than the uplink symbol occupied by the DMRS, or the sTTI occupied by the first time domain resource is not an uplink subframe, or the sTTI occupied by the first time domain resource is not the first sTTI in the uplink time slot or The first uplink control information is sent on the uplink traffic channel when the time interval between the first time domain resource and the uplink symbol occupied by the DMRS is not greater than the first duration.

It should be understood that the third time domain resource is different from the first time domain resource.

In conjunction with the first aspect and the foregoing implementation manner, in a fifth possible implementation manner of the first aspect, the third time domain resource is located before the first time domain resource.

That is, if the third time domain resource occupied by the second uplink control information is earlier than the first time domain resource, when the first control information is determined to be sent on the first uplink control channel, the UE may use the uplink traffic channel. The data information is discarded, so the first uplink control information can be sent on the first uplink control channel; if the third time domain resource occupied by the second uplink control channel is not earlier than the first uplink control channel. If the data information on the uplink control channel has not been discarded, the first uplink control information may be piggybacked to the uplink traffic channel, if later, it is required to be later than the first time. The uplink control information is sent on other channels of the domain resource, and the piggyback may continue to be sent to the uplink traffic channel.

It should be understood that the manner of determining whether to transmit information on the second uplink control channel or to transmit information on the uplink traffic channel may be according to the first aspect or the possible implementations of the first to fourth aspects of the first aspect. Any one of the formulas is not limited by the invention.

With reference to the first aspect and the foregoing implementation manner, in a sixth possible implementation manner of the foregoing aspect, the method further includes: when determining that the uplink traffic channel is the target channel, sending the uplink traffic channel Corresponding demodulation reference channel DMRS, discarding or not transmitting data information on the uplink traffic channel.

Optionally, when the first uplink control channel is selected as the target channel to send the first uplink control information, then in the same subframe, the first uplink control channel may be on the uplink symbol and the subsequent symbol on the uplink traffic channel. The data information of the bearer is discarded and not transmitted, but the DMRS corresponding to the uplink traffic channel is reserved for demodulating the new uplink control information that is piggybacked to the uplink traffic channel.

That is, if it is determined that an uplink control channel (eg, a third uplink control channel) of the uplink subframe needs to transmit information, if the first time domain resource is different from the uplink control channel (the third uplink control channel), Determining that the first control information needs to be sent on the uplink traffic channel, the DMRS on the uplink traffic channel needs to be reserved, so as to demodulate the second control information that is piggybacked on the uplink traffic channel, where the third uplink control channel occupies The time domain resource is different from the first time domain resource, for example, the time domain resource occupied by the third uplink control channel is after the first time domain resource.

Optionally, the uplink traffic channel may be a physical uplink shared channel (English: Physical Uplink Shared Channel, short: PUSCH) or a short physical uplink shared channel (short physical uplink shared channel, shorthand: sPUSCH); the first uplink control channel Or the second uplink control channel may be a short physical uplink control channel (short physical uplink control channel, short: sPUCCH), and the first uplink control information or the second uplink control information may be short uplink control information (English: Short Uplink Control) Information, shorthand: sUCI).

Optionally, the DMRS corresponding to the uplink traffic channel includes: the data information transmitted on the uplink traffic channel or the uplink control that is piggybacked to the uplink traffic channel, within the second time domain resource range occupied by the uplink traffic channel. Information is demodulated by the DMRS. Specifically, the uplink traffic channel is a PUSCH, and the DMRS corresponding to the PUSCH is the fourth uplink symbol in one slot of the uplink subframe in which the DMRS is located, and the frequency domain resource occupied by the DMRS is the same as the frequency domain resource occupied by the PUSCH; The DMRS is one of two DMRSs included in one uplink subframe.

Optionally, the DMRS corresponding to the uplink traffic channel further includes: a DMRS in the second uplink traffic channel sent by the UE before the uplink traffic channel, where the upper industry in the previous uplink subframe The DMRS included in the traffic channel may also be used for channel demodulation of the current uplink subframe uplink traffic channel or demodulated by the first uplink control information piggybacked to the current uplink traffic channel. Further, the frequency domain range occupied by the DMRS in the second uplink traffic channel is the same as the frequency domain range occupied by the uplink traffic channel. For example, the UE is scheduled by the base station to be a plurality of consecutive uplink subframes, and the allocated frequency domain resources of the uplink subframes are the same. If the UE sends such a DMRS in the previous uplink subframe, the UE is also in the current subframe. The first uplink control information may be piggybacked and sent to the uplink traffic channel.

A second aspect provides a method for transmitting information, including: determining a first time domain resource occupied by a first uplink control channel in an uplink subframe, where the first time domain resource is used to carry first control information. Determining a second time domain resource occupied by the uplink traffic channel in the uplink subframe, where the second time domain resource includes the first time domain resource, and the length of the first time domain resource is less than the first The length of the second time domain resource; determining, according to the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel; on the target channel Receiving the first control information.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining, by the location of the first time domain resource in the uplink subframe, the first uplink control channel or the Determining, by the uplink traffic channel, a target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel, determining that the first uplink control channel is the target a channel; if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.

In conjunction with the second aspect and the above implementation thereof, a second possible implementation in the second aspect Determining, according to the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel, including: when the first time domain When the resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, determining the uplink control channel Is the target channel.

With reference to the second aspect and the foregoing implementation manner, in a third possible implementation manner of the second aspect, the first, according to the location of the first time domain resource in the uplink subframe, the first Determining, by the uplink control channel or the uplink traffic channel, a target channel, the time interval between the uplink symbols occupied by the demodulation reference signal DMRS corresponding to the first time domain resource and the uplink traffic channel is greater than the first Determining, by the first time domain, the first uplink control channel is the target channel; when the time interval between the time resources occupied by the DMRS in the first time domain resource is not greater than the first time length, determining The uplink traffic channel is the target channel.

With reference to the second aspect and the foregoing implementation manner, in a fourth possible implementation manner of the second aspect, the first uplink is performed according to a location of the first time domain resource in the uplink subframe Determining, as the target channel, the control channel or the uplink traffic channel includes: if it is determined to send information on the second uplink control channel, the second uplink control channel occupies a third time domain resource, where the second time domain resource includes And the third time domain resource, where the length of the second time domain resource is greater than the length of the third time domain resource, the first uplink control channel is determined as the target channel.

With reference to the second aspect and the foregoing implementation manner, in a fifth possible implementation manner of the second aspect, the third time domain resource is located before the first time domain resource.

In a third aspect, a terminal device is provided for performing the method of any of the above first aspect or any of the possible implementations of the first aspect. In particular, the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.

In a fourth aspect, a network device is provided for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect. In particular, the apparatus comprises means for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.

In a fifth aspect, an apparatus is provided, the apparatus comprising: a transceiver, a memory, a processor, and a bus system. Wherein the transceiver, the memory and the processor are connected by the bus system, the memory is for storing instructions for executing instructions stored by the memory to control the transceiver to receive and/or transmit signals, and When the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.

In a sixth aspect, an apparatus is provided, the apparatus comprising: a transceiver, a memory, a processor, and a bus system. Wherein the transceiver, the memory and the processor are connected by the bus system, the memory is for storing instructions for executing instructions stored by the memory to control the transceiver to receive signals and/or transmit signals, and When the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.

A seventh aspect, a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.

In an eighth aspect, a computer readable medium is provided for storing a computer program comprising instructions for performing the method of the second aspect or any of the possible implementations of the second aspect.

DRAWINGS

FIG. 1 is a schematic structural diagram of an application scenario according to an embodiment of the present invention.

FIG. 2 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.

3 is a schematic diagram of a method of transmitting information according to an embodiment of the present invention.

4 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 5 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 6 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 7 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 8 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 9 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 10 is a schematic diagram of a method of transmitting information according to another embodiment of the present invention.

FIG. 11 is a schematic flowchart of a method for receiving information according to an embodiment of the present invention.

Figure 12 is a structural block diagram of a terminal device according to an embodiment of the present invention.

Figure 13 is a structural block diagram of a network device in accordance with one embodiment of the present invention.

Figure 14 is a block diagram showing the schematic structure of an apparatus in accordance with an embodiment of the present invention.

Figure 15 is a block diagram showing the schematic structure of an apparatus according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example, Global System of Mobile communication ("GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service ("GPRS"), Long Term Evolution (Long Term Evolution, Referred to as "LTE" system, LTE Frequency Division Duplex ("FDD") system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System, referred to as "UMTS" for short, or Worldwide Interoperability for Microwave Access ("WiMAX") communication system. The embodiment of the present invention is described by taking an LTE communication system as an example.

It should be understood that, in the embodiment of the present invention, a terminal (Terminal) may communicate with one or more core networks via a radio access network, and the terminal may be referred to as an access terminal or a user equipment (User Equipment, referred to as “UE” for short). ), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SIP") phone, a Wireless Local Loop (WLL) station, or a personal digital assistant (Personal Digital Assistant). "PDA"), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, and a terminal device in a future 5G network. For convenience of description, the following embodiments will be described by taking a user equipment as an example.

In the embodiment of the present invention, the base station may be a base station (Base Transceiver Station, abbreviated as "BTS") in GSM or CDMA, or may be a base station (NodeB, referred to as "NB") in WCDMA, or may be in LTE. The evolution of the base station (Evolutional Node B, referred to as "eNB or eNodeB"), the present invention is not limited, but for convenience of description, the following embodiments will be described by taking an eNodeB as an example.

FIG. 1 is a schematic structural diagram of an application scenario according to an embodiment of the present invention. As shown in Figure 1, LTE The basic network architecture of the communication system may include a base station 20 and at least one wireless terminal, such as UE 10, UE 11, UE 12, UE 13, UE 14, UE 15, UE 16, and UE 17. As shown in FIG. 1, the eNodeB 20 is configured to provide communication services for at least one of the UE 10 to the UE 17 and access the core network. Any one of the UE 10 to the UE 17 and the eNodeB 20 may include at least one antenna, and the case of multiple antennas is shown in FIG. Here, the communication between the UE 10 and the eNodeB 20 will be described as an example.

In the application scenario, when the signal is transmitted between the UE 10 and the eNodeB 20, the time-frequency resources occupied by the channel corresponding to the long TTI and the time-frequency resources occupied by the channel corresponding to the short TTI may be frequency division multiplexed (Frequency Division). The method of multiplexing, referred to as "FDM", may also be that the channel corresponding to the long TTI and the channel corresponding to the short TTI occupy the same frequency domain resource, which is not limited by the present invention.

It should be understood that the Transmission Time Interval ("TTI") refers to the time interval of one transmission. The length of a typical LTE TTI (long TTI) is 1 ms. Short TTI (English: short TTI, sTTI for short) can range from 0.5ms to 1 symbol long. The short TTI is not limited to this. The short TTI can also be considered as a relative concept. In an already-occurring schedule, if an emergency service needs to be scheduled, scheduling a relatively short TTI at this time can be called a short TTI. The original schedule can be called a long TTI. This embodiment of the present invention does not limit this.

It should also be understood that the present invention is applicable to a wireless communication system that can support short TTI transmission, wherein the base station device of the wireless communication system can transmit downlink information in a normal TTI transmission format or a short TTI transmission format, and the wireless communication system terminal device can The uplink information is sent in a normal TTI transmission format or a short TTI transmission format.

FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention, where an execution subject of the method is a UE. As shown in FIG. 2, the method 200 includes:

Step 210: Determine a first time domain resource that the first uplink control channel occupies in the uplink subframe, where the first time domain resource is used to carry the first control information.

Step 220: Determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes a first time domain resource, where the length of the first time domain resource is smaller than the length of the second time domain resource. .

Step 230: Determine the first uplink control channel or an uplink traffic channel as a target channel according to a location of the first time domain resource in an uplink subframe.

Step 240: Send the first control information on a target channel.

It should be understood that the uplink traffic channel may be a physical uplink shared channel (English: Physical Uplink Shared Channel, short: PUSCH) or a short physical uplink shared channel (short physical uplink shared channel (sPUSCH); the first uplink control channel or The second uplink control channel may be a short physical uplink control channel (English: short physical uplink control channel, shorthand: sPUCCH), and the first uplink control information or the second uplink control information may be short uplink control information (English: Short Uplink Control Information) , shorthand: sUCI). Therefore, the first uplink control channel or the second uplink control channel in the specific embodiment of the present invention takes the sPUCCH as an example, the first uplink control information or the second uplink control information is exemplified by the sUCI, and the uplink traffic channel is described by using the PUSCH as an example. .

It should be understood that the second time domain resource includes the first time domain resource, and the first time domain resource occupied by the first uplink control channel completely falls within the second time domain resource occupied by the uplink traffic channel, that is, It is said that part of the resources of the second time domain resource and the first time domain resource completely overlap in time, and the above situation can be understood as that the first uplink control channel collides with the uplink traffic channel. If the first time domain resource does not overlap with the second time domain resource, the information transmission on the first uplink control channel and the uplink traffic channel does not affect each other; otherwise, the UE may not support simultaneous transmission on both channels at the same time. The information thus requires the solution of the present invention to solve the sub-technical problem.

For example, a PUSCH with a length of 1 ms occupies a 1 ms subframe, a second time domain resource is 1 ms in the subframe, and an sTTI length of the sPUCCH in the subframe is 2 SS, and the first time domain resource is the subframe. The two SSs in the two completely overlap with the second time domain resource in time, and the overlapping parts are the two SSs.

Optionally, as an embodiment of the present invention, the first uplink control channel or the uplink traffic channel is determined as a target channel according to a location of the first time domain resource in the uplink subframe, The first uplink control channel is determined to be the target channel, if the first time domain resource is located before the uplink symbol occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel; The domain resource is not located before the DMRS, and the uplink traffic channel is determined to be the target channel.

For example, suppose the sTTI is a 2&3 structure, the DMRS of the PUSCH is on the symbol OS#3, and the first uplink control information is assumed to be on the second sTTI, and the first time domain resource includes the symbols OS#2 and OS#3. When a symbol is the first symbol, that is, OS#2, the first time domain resource is earlier than the DMRS; if the one symbol is the last symbol, that is, OS#3, the first time domain resource is not earlier than the DMRS.

It should be understood that the signal carried by the uplink control channel includes a control channel demodulation reference signal DMRS and uplink control information, and the base station may acquire channel state information through the control channel DMRS, and use the channel state information to demodulate the uplink control information. The first time domain resource occupied by the first uplink control channel includes at least one uplink symbol, and the at least one uplink symbol may be an uplink symbol that carries the first uplink control information, and may also include a symbol and uplink control that carries the first uplink control information. Channel DMRS symbol. For example, the first uplink control channel sPUCCH is on the first sTTI of the length 2SS, the first SS is the control channel DMRS, the second SS is used to carry the symbol of the sUCI, and the first time domain resource occupied by the sPUCCH may be the first Two SSs can also be the first SS plus the second SS. The third time domain resource occupied by the second control channel includes at least one uplink symbol, and the at least one uplink symbol may be an uplink symbol carrying the first uplink control information, or may be a symbol carrying the first uplink control information and a control channel DMRS. Symbol, similar to the first time domain resource, will not be described again.

Further, the downlink control channel to the corresponding or indicated uplink control information usually has a predefined or sequenced relationship indicated by the base station, for example, the HARQ-ACK information of the downlink traffic channel of the nth sTTI is fed back on the n+k uplink channel. . In order to maintain the timing of the sPDCCH to the sUCI, the data information that is destroyed on the PUSCH is located on the first time domain resource, that is, the sUCI carried by the sPUCCH is sent on the corresponding uplink symbol of the PUSCH, that is, the sCUI is piggybacked to The PUSCH is transmitted on the first time domain resource, unlike in the existing LTE system, when the PUSCH and the PUCCH collide, the UCI information is piggybacked and transmitted around the DMRS symbol of the PUSCH.

Optionally, if it is determined that the first uplink control channel is used as the target channel, and the first uplink control information is sent on the first uplink control channel, in the same subframe, the first uplink control channel may be in the uplink traffic channel. The corresponding uplink symbol and the data information carried on the subsequent symbols are discarded and not transmitted.

Therefore, after some symbols are deleted on the uplink traffic channel, the data packets in the uplink control channel in the current subframe are likely to be unable to be correctly demodulated, and further, there may be a new uplink control channel. The uplink control information is to be sent, and the UE also discards the data information on the corresponding symbol of the uplink traffic channel. Therefore, the symbol corresponding to the earliest uplink control channel in the uplink subframe and the data information carried on the subsequent symbol are discarded. Save UE power.

The embodiment of the present invention will be described by way of specific examples with reference to FIG. 3 and FIG. 4, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention. As shown in FIG. 3, the seven uplink symbols on a certain time slot in an uplink subframe are respectively SS#0, SS#1, SS#2, SS#3, SS#4, SS#. 5, SS#6, the first time domain resource occupied by the first sPUCCH is SS#0 and SS#1, and the PUSCH fills the above seven uplink symbols, and the first time domain resource is earlier than the PUSCH and is located in SS#3. The DMRS transmits the sUCI on the sPUCCH and discards or does not transmit the data information located on the PUSCH.

FIG. 4 is a schematic diagram showing a method of transmitting information according to another embodiment of the present invention. When the first time domain resource occupied by the first sPUCCH is SS#2 and SS#3, the sUCI on the first sPUCCH is piggybacked to the PUSCH because it is not earlier than the DMRS located on the PUSCH, as shown in FIG. 4 It is shown that the sUCI piggyback of the first sPUCCH is sent to the SS#2 and SS#3 uplink symbols of the PUSCH channel, and the control information is not sent on the first uplink control channel, and the DMRS that needs to be transmitted on the first sPUCCH is discarded.

Optionally, if it is determined that the first uplink control channel in the current uplink subframe is used as the target channel, and no other control information needs to be sent on the other control channel, only the first uplink control channel is discarded. Corresponding to the data information carried by the symbols on the uplink traffic channel.

That is, if no control information needs to be sent on the uplink symbol after the first s PUCCH, the UE may only discard the data information corresponding to the uplink symbol occupied by the first s PUCCH on the PUSCH.

The embodiments of the present invention are described below with reference to FIG. 5, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention.

As shown in FIG. 5, the first time domain resources occupied by the first sPUCCH are SS#0 and SS#1, and the first time domain resource is earlier than the DMRS of the SS#3 on the PUSCH, and the sUCI is sent on the sPUCCH. The data information of SS#0 and SS#1 on the PUSCH is discarded or not transmitted, and the data information on the symbol after the PUSCH is reserved.

Optionally, as an embodiment of the present invention, the first uplink control channel or the uplink traffic channel is determined as a target channel according to a location of the first time domain resource in the uplink subframe, The method includes: when the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe And determining the uplink control channel as the target channel.

The embodiments of the present invention are described below with reference to FIG. 6, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention. As shown in FIG. 6, the first time domain resource occupied by the first sPUCCH is the first sTTI of the second time slot in the uplink subframe, that is, SS#7 and SS#8, then the first sPUCCH is determined as the target. Channel, the first sUCI is sent on the first sPUCCH, and the data information located on SS#8 and SS#9 on the PUSCH is deleted, and the data information after SS#8 and SS#9 on the PUSCH channel may be according to FIG. 3 or 5 implementation mode choose to discard or retain.

In other words, it is required to satisfy not only the first time domain resource but also the uplink symbol occupied by the DMRS corresponding to the uplink traffic channel, and the uplink symbol occupied by the DMRS corresponding to the first time domain resource and the uplink traffic channel. The second time interval is greater than the second time length, and the first uplink control channel is determined to be the target channel; otherwise, the uplink traffic channel is determined to be the target channel.

The embodiments of the present invention are described below with reference to FIG. 7, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention. As shown in FIG. 7, it is assumed that the sTTI is a 2&3 structure, and it is assumed that the first time length defined is one uplink symbol. In FIG. 7(a), the uplink symbols occupied by the first time domain resource are SS#0 and SS#. The sUCI is sent on the sPUCCH, because the first time domain resource is located before the uplink symbol occupied by the DMRS on the PUCCH, and the time interval corresponding to the DMRS on the PUCCH is greater than one uplink symbol. In FIG. 7(b), the second sTTI occupied by the first time domain resource includes symbols SS#2, SS#3, SS#4, because the first time domain resource is earlier than the DMRS on the PUSCH. Upstream symbol (for example, comparing the first symbol SS#2 in the first time domain resource with the uplink symbol SS#3 occupied by the DMRS, ie SS#2 is earlier than SS#3), and the second sTTI The time interval with the DMRS on the PUSCH is not greater than one uplink symbol, so the sUCI piggyback can be sent to the PUSCH without transmitting the sUCI on the corresponding sPUCCH; in FIG. 7(c), the first time domain resource is occupied. The third sTTI includes the symbols SS#5, SS#6. Since the first time domain resource selection is not earlier than the uplink symbol occupied by the DMRS on the PUSCH, the sPUCC is selected. Send sUCI on H.

Optionally, as an embodiment of the present invention, the first uplink control channel or the uplink traffic channel is determined as a target channel according to a location of the first time domain resource in the uplink subframe, Determining, when the time interval between the first time domain resource and the time resource occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than the first time length, determining that the first uplink control channel is And determining, by the first time domain resource, that the time interval between the time resources occupied by the DMRS is not greater than the first time length, determining that the uplink traffic channel is the target channel.

Therefore, considering that even if the first time domain resource is after the DMRS, if the distance from the DMRS is relatively long, the time-varying characteristic of the channel may cause the channel state at the DMRS time to be different from the channel state at the time of the first uplink control information, and the first uplink is The demodulation accuracy of the control information is affected, resulting in an increase in the probability of demodulation failure. The embodiment of the present invention determines on which channel to transmit according to the time interval between the first time domain resource and the DMRS. If the time interval between the first time domain resource and the time exceeds the first The first uplink control information is sent on the first uplink control channel, and the first uplink control information is sent on the uplink traffic channel if the time interval between the first time domain resources and the first time interval does not exceed the first time length. Can reduce the probability of demodulation failure.

The embodiment of the present invention will be described below with reference to FIG. 8, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention. As shown in FIG. 8, assuming that the sTTI is a 2&3 structure, assuming that the first time length defined is 1 uplink symbol, the first sTTI includes symbols SS#0 and SS#1, and the second sTTI includes symbols SS#2, SS. #3, SS#4, the third sTTI includes the symbols SS#5, SS#6. If the first time domain resource occupied by the first sPUCCH is the first sTTI or the third sTTI, the time interval corresponding to the DMRS on the PUCCH is greater than one uplink symbol, then the The sUCI is sent on the sPUCCH; if the first time domain resource occupied by the first sPUCCH is the second sTTI, the time interval between the second sTTI and the DMRS on the PUSCH is not greater than one uplink symbol, so the sUCI piggyback can be Transmitted on the PUSCH without transmitting sUCI on the corresponding sPUCCH.

Optionally, as an embodiment of the present invention, the first uplink control channel or the uplink traffic channel is determined as a target channel according to a location of the first time domain resource in the uplink subframe, The method includes: determining to send information on a second uplink control channel, where the second uplink control channel occupies a third time domain resource, the second time domain resource includes the third time domain resource, and the second time domain resource The length of the third time domain resource is greater than the length of the third time domain resource, and the first uplink control channel is determined as the target channel.

In other words, when determining that the first s PUCCH or the PUSCH is the target channel, it is necessary to consider whether the second sPUCCH located in the third time domain resource in the uplink subframe needs to send the second sUCI.

It should be understood that the manner of determining to transmit the second sUCI on the second s PUCCH or on the PUSCH is similar to the method of determining the target channel described above.

For example, when the time domain resource occupied by the second sPUCCH in the uplink is the third time domain resource, the third time domain resource is used to carry the second sUCI; and the first time occupied by the uplink traffic channel in the uplink subframe is determined. a second time domain resource, the second time domain resource includes the third time domain resource, and the second time domain resource has a length smaller than a length of the second time domain resource; a location in the uplink subframe, determining the second s PUCCH or the uplink traffic channel as a target channel; and transmitting the second sUCI on a target channel.

Optionally, as an embodiment of the present invention, if the third time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to an uplink traffic channel, determining the second sPUCCH And being the target channel; the third time domain resource is not located before the DMRS, and determining that the uplink traffic channel is a target channel.

Optionally, as an embodiment of the present invention, the determining, by the location of the third time domain resource in the uplink subframe, the second s PUCCH or the uplink traffic channel as a target channel, includes: When the third time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, The second sPUCCH is determined as a target channel.

Optionally, as an embodiment of the present invention, the determining, by the location of the third time domain resource in the uplink subframe, the second s PUCCH or the uplink traffic channel as a target channel, includes: Determining that the first uplink control channel is the target when a time interval between the third time domain resource and a time resource occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than a first time length And determining, when the time interval between the uplink symbols occupied by the DMRS in the third time domain resource is not greater than the first time length, determining that the uplink traffic channel is a target channel.

Further, if it is determined that the sUCI is sent on the second sPUCCH, or the sUCI has been sent on the second sPUCCH, according to the description of the foregoing embodiment, all the data information including the DMRS on the PUSCH may be deleted, then the first The sPUCCH may send the sUCI as the target channel.

It should be understood that the third time domain resource occupied by the second sPUCCH may be located before the first time domain resource occupied by the first sPUCCH, or may be located after the first time domain resource, which is not limited by the present invention.

The embodiment of the present invention will be described below with reference to FIG. 9, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention.

As shown in FIG. 9, the third time domain resource occupied by the second sPUCCH is the uplink symbol occupied by SS#0 and SS#1, that is, the first sTTI in the time slot, and the first sPUCCH is occupied. The time domain resource is the uplink symbol occupied by SS#2 and SS#3, that is, the second sTTI in one slot. Since the second s PUCCH has been determined to transmit the sUCI, the data information on the PUSCH has been deleted, the first s PUCCH is determined to be the target channel, and the corresponding sUCI on the first sPUCCH is transmitted.

Optionally, as an embodiment of the present invention, the method further includes: when determining that the uplink traffic channel is the target channel, transmitting a demodulation reference channel DMRS corresponding to the uplink traffic channel, discarding or not sending the Data information on the uplink traffic channel.

Optionally, when the first uplink control channel is selected as the target channel, the first uplink control information is sent. In the same subframe, the data information carried by the first uplink control channel corresponding to the uplink symbol and the subsequent symbol on the uplink traffic channel may be discarded, but the DMRS corresponding to the uplink traffic channel is reserved. Demodulating the piggybackback to the new uplink control information on the uplink traffic channel.

The embodiment of the present invention will be described below with reference to FIG. 10, which shows a schematic diagram of a method for transmitting information according to an embodiment of the present invention. As shown in FIG. 10, the third time domain resource occupied by the second sPUCCH is the first sTTI, and then the uplink control information is sent on the second sPUCCH according to the method described in the foregoing embodiments in FIG. 3 to FIG. When it is necessary, the data information on the PUSCH may need to be discarded or not sent. Further, the first time domain resource occupied by the first sPUCCH is the second sTTI, and the sUCI that needs to send the first time domain resource on the PUSCH is determined by the method described in the foregoing embodiments in FIG. 3 to FIG. Then you need to reserve or send the DMRS on the uplink traffic channel.

Optionally, the DMRS corresponding to the uplink service channel further includes: a DMRS in the second uplink traffic channel sent by the UE before the uplink traffic channel, where the DMRS included in the uplink traffic channel in the previous uplink subframe may also be used. Demodulation for channel demodulation of the current uplink subframe uplink traffic channel or first uplink control information piggybacked to the current uplink traffic channel. Further, the frequency domain range occupied by the DMRS in the second uplink traffic channel is the same as the frequency domain range occupied by the uplink traffic channel. For example, the UE is scheduled by the base station to multiple consecutive uplink subframes, and these uplinks The frequency domain resources allocated to the subframe are the same. If the UE sends such a DMRS in the previous uplink subframe, the UE may also piggyback the first uplink control information on the uplink traffic channel in the current subframe.

11 is a schematic flowchart of a method for receiving information according to the present invention. The method may be a base station. As shown in FIG. 11, the method 1100 includes:

Step 1101: Determine a first time domain resource that is occupied by the first uplink control channel in an uplink subframe, where the first time domain resource is used to carry the first control information.

Step 1102: Determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the length of the first time domain resource is smaller than the length of the second time domain resource.

Step 1103: Determine, according to the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as the target channel.

Step 1104: Receive first control information on the target channel.

Optionally, as an embodiment of the present invention, determining, according to a location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target And determining, by the first uplink control channel, when a time interval between uplink symbols occupied by the demodulation reference signal DMRS corresponding to the first time domain resource and the uplink traffic channel is greater than a first time length And determining, by the first time domain resource, that the time interval between the time resources occupied by the DMRS is not greater than the first time length, determining that the uplink traffic channel is the target channel.

Optionally, as an embodiment of the present invention, the first uplink control channel or the uplink traffic channel is determined as a target channel according to a location of the first time domain resource in the uplink subframe, The second time domain resource includes the third time domain resource, and the second time domain resource includes the third time domain resource, where the information is sent on the second uplink control channel, where the second time domain resource includes the third time domain resource, and the second time domain resource The length of the resource is greater than the length of the third time domain resource, and the first uplink control channel is determined as the target channel.

Optionally, as an embodiment of the present invention, the third time domain resource is located before the first time domain resource.

The method for transmitting information and receiving information according to the embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 11. The terminal device and the network device according to the embodiment of the present invention will be described in detail below with reference to FIG. 12 to FIG.

Figure 12 is a block diagram showing the structure of a terminal device according to an embodiment of the present invention. It should be understood that the terminal device 1200 can perform the various steps performed by the terminal device in the methods of FIGS. 1 through 11, and in order to avoid repetition, it will not be described in detail herein. The terminal device 1200 includes:

The determining unit 1201 is configured to determine a first time domain resource that is occupied by the first uplink control channel in the uplink subframe, where the first time domain resource is used to carry the first control information.

The determining unit 1201 is further configured to determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the first time domain The length of the resource is less than the length of the second time domain resource.

The determining unit 1201 is further configured to determine the first uplink control channel or the uplink traffic channel as a target channel according to a location of the first time domain resource in the uplink subframe.

The sending unit 1202 is configured to send the first control information on the target channel.

Figure 13 is a block diagram showing the structure of a terminal device according to an embodiment of the present invention. It should be understood that the terminal device 1300 can perform the various steps performed by the terminal device in the methods of FIGS. 1 through 11, and in order to avoid repetition, it will not be described in detail herein. The terminal device 1300 includes:

The determining unit 1301 is configured to determine a first time domain resource that is occupied by the first uplink control channel in the uplink subframe, where the first time domain resource is used to carry the first control information.

The determining unit 1301 is further configured to determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the first time domain The length of the resource is less than the length of the second time domain resource.

The determining unit 1301 is further configured to determine the first uplink control channel or the uplink traffic channel as a target channel according to a location of the first time domain resource in the uplink subframe.

The receiving unit 1302 is configured to send the first control information on the target channel.

Figure 14 is a schematic structural view of an apparatus of one embodiment of the present invention. FIG. 14 shows an apparatus 1400 provided by an embodiment of the present invention. It should be understood that the apparatus 1400 is capable of performing the various steps performed by the terminal device in the methods of FIGS. 1 through 11, and to avoid repetition, it will not be described in detail herein. Apparatus 1400 includes:

a memory 1401, configured to store a program;

a transceiver 1402, configured to communicate with other devices;

a processor 1403, configured to execute a program in the memory 1401, when the program is executed, The processor 1403 is configured to receive and/or send a signal by using a transceiver 1402, where the processor 1403 is further configured to determine a first time domain resource occupied by the first uplink control channel in an uplink subframe, where The first time domain resource is used to carry the first time information resource; the second time domain resource occupied by the uplink time channel in the uplink subframe is determined, and the second time domain resource includes the first time domain resource, The length of the first time domain resource is smaller than the length of the second time domain resource; and is further configured to: use the first uplink control channel or the location according to the location of the first time domain resource in the uplink subframe The uplink traffic channel is determined as a target channel.

The transceiver 1402 is further configured to send the first control information on the target channel.

It should be understood that the device 1400 may be specifically the terminal device in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the terminal device in the foregoing method embodiments.

Figure 15 is a schematic structural view of an apparatus of one embodiment of the present invention. FIG. 15 shows an apparatus 1500 provided by an embodiment of the present invention. It should be understood that the apparatus 1500 is capable of performing the various steps performed by the terminal device in the methods of FIGS. 1 through 11, which are not described in detail herein in order to avoid redundancy. Apparatus 1500 includes:

a memory 1501, configured to store a program;

a transceiver 1502, configured to communicate with other devices;

The processor 1503 is configured to execute a program in the memory 1501, when the program is executed, the processor 1503 is configured to receive and/or transmit a signal through the transceiver 1502, and the processor 1503 is further configured to determine the first The first time domain resource occupied by the uplink control channel in the uplink subframe, where the first time domain resource is used to carry the first control information, and the second uplink traffic channel is determined to be the second time occupied by the uplink subframe. The time domain resource, the second time domain resource includes the first time domain resource, the length of the first time domain resource is smaller than the length of the second time domain resource, and is further used according to the first time domain The location of the resource in the uplink subframe determines the first uplink control channel or the uplink traffic channel as a target channel.

The transceiver 1502 is further configured to receive the first control information on the target channel.

It should be understood that the device 1500 may be specifically the terminal device in the above embodiment, and may be used. The steps and/or processes corresponding to the terminal device in the foregoing method embodiment are performed.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention by any person skilled in the art. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A method for transmitting information, comprising:

Determining, by the first time domain resource, the first time domain resource that is occupied by the first uplink control channel, where the first time domain resource is used to carry the first control information;

Determining a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the length of the first time domain resource is smaller than the second The length of the time domain resource;

Determining, by the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel;

Transmitting the first control information on the target channel.
The method according to claim 1, wherein the determining the first uplink control channel or the uplink traffic channel as a target according to a location of the first time domain resource in the uplink subframe Channel, including:

Determining that the first uplink control channel is the target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel;

And if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.
The method according to claim 1, wherein the determining the first uplink control channel or the uplink traffic channel as a target according to a location of the first time domain resource in the uplink subframe Channel, including:

When the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, Determining the first uplink control channel as the target channel.
The method according to claim 1, wherein the determining the first uplink control channel or the uplink traffic channel as a target according to a location of the first time domain resource in the uplink subframe Channel, including:

Determining, when the time interval between the first time domain resource and the time resource occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than the first time length, determining that the first uplink control channel is the target channel;

And determining, when the time interval between the uplink symbols occupied by the DMRS in the first time domain resource is not greater than the first time length, determining that the uplink traffic channel is the target channel.
The method according to any one of claims 1 to 4, wherein the first uplink control channel or the location is according to a location of the first time domain resource in the uplink subframe The uplink traffic channel is determined as the target channel, including:

Determining to send information on the second uplink control channel, where the second uplink control channel occupies a third time domain resource, the second time domain resource includes the third time domain resource, and the length of the second time domain resource And being greater than the length of the third time domain resource, determining the first uplink control channel as the target channel.
The method according to claim 5, wherein the third time domain resource is located before the first time domain resource.
The method according to any one of claims 1 to 6, wherein the method further comprises:

When it is determined that the uplink traffic channel is the target channel, the demodulation reference channel DMRS on the uplink traffic channel is sent, and data information on the uplink traffic channel is discarded or not transmitted.
A method for receiving information, comprising:

Determining, by the first time domain resource, the first time domain resource that is occupied by the first uplink control channel, where the first time domain resource is used to carry the first control information;

Determining a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the length of the first time domain resource is smaller than the second The length of the time domain resource;

Determining, by the location of the first time domain resource in the uplink subframe, the first uplink control channel or the uplink traffic channel as a target channel;

Receiving the first control information on the target channel.
The method according to claim 8, wherein the determining the first uplink control channel or the uplink traffic channel as a target according to a location of the first time domain resource in the uplink subframe Channel, including:

Determining that the first uplink control channel is the target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel;

And if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.
The method according to claim 8, wherein the first uplink control channel or the uplink service information is according to a location of the first time domain resource in the uplink subframe The channel is determined as the target channel, including:

When the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, Determining the first uplink control channel as the target channel.
The method according to claim 8, wherein the determining the first uplink control channel or the uplink traffic channel as a target according to a location of the first time domain resource in the uplink subframe Channel, including:

Determining that the first uplink control channel is the target when a time interval between the first time domain resource and an uplink symbol occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than a first time length channel;

And determining, when the time interval between the time resources occupied by the DMRS in the first time domain resource is not greater than the first time length, determining that the uplink traffic channel is the target channel.
The method according to any one of claims 8 to 11, wherein the first uplink control channel or the location is according to a location of the first time domain resource in the uplink subframe The uplink traffic channel is determined as the target channel, including:

If it is determined that the information is sent on the second uplink control channel, the second uplink control channel occupies the third time domain resource, the second time domain resource includes the third time domain resource, and the second time domain resource If the length is greater than the length of the third time domain resource, the first uplink control channel is determined as the target channel.
The method of claim 12, wherein the third time domain resource is located before the first time domain resource.
A terminal device, comprising:

a determining unit, configured to determine a first time domain resource occupied by the first uplink control channel in an uplink subframe, where the first time domain resource is used to carry the first control information;

The determining unit is further configured to determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the first time domain resource The length of the second time domain resource is smaller than the length of the second time domain resource;

The determining unit is further configured to determine the first uplink control channel or the uplink traffic channel as a target channel according to a location of the first time domain resource in the uplink subframe;

And a sending unit, configured to send the first control information on the target channel.
The terminal device according to claim 14, wherein the determining unit is specifically configured to:

Determining that the first uplink control channel is the target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel;

And if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.
The terminal device according to claim 14, wherein the determining unit is specifically configured to:

When the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, Determining the first uplink control channel as the target channel.
The terminal device according to claim 14, wherein the determining unit is specifically configured to:

Determining, when the time interval between the first time domain resource and the time resource occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than the first time length, determining that the first uplink control channel is the target channel;

And determining, when the time interval between the uplink symbols occupied by the DMRS in the first time domain resource is not greater than the first time length, determining that the uplink traffic channel is the target channel.
The terminal device according to any one of claims 14 to 17, wherein the determining unit is specifically configured to:

Determining to send information on the second uplink control channel, where the second uplink control channel occupies a third time domain resource, the second time domain resource includes the third time domain resource, and the length of the second time domain resource And being greater than the length of the third time domain resource, determining the first uplink control channel as the target channel.
The terminal device according to claim 18, wherein the third time domain resource is located before the first time domain resource.
The terminal device according to any one of claims 1 to 6, wherein the terminal device further comprises:

When it is determined that the uplink traffic channel is the target channel, the demodulation reference channel DMRS on the uplink traffic channel is sent, and data information on the uplink traffic channel is discarded or not transmitted.
A network device, comprising:

a determining unit, configured to determine a first time domain resource occupied by the first uplink control channel in an uplink subframe, where the first time domain resource is used to carry the first control information;

The determining unit is further configured to determine a second time domain resource that the uplink traffic channel occupies in the uplink subframe, where the second time domain resource includes the first time domain resource, and the first time domain resource The length of the second time domain resource is smaller than the length of the second time domain resource;

The determining unit is further configured to determine the first uplink control channel or the uplink traffic channel as a target channel according to a location of the first time domain resource in the uplink subframe;

And a sending unit, configured to receive the first control information on the target channel.
The network device according to claim 21, wherein the determining unit is specifically configured to:

Determining that the first uplink control channel is the target channel, if the first time domain resource is located before an uplink symbol occupied by a demodulation reference signal DMRS corresponding to the uplink traffic channel;

And if the first time domain resource is not located before the DMRS, determining that the uplink traffic channel is the target channel.
The network device according to claim 21, wherein the determining unit is specifically configured to:

When the first time domain resource is the first short uplink time interval sTTI of the uplink subframe, or the first time domain resource is the first sTTI of one time slot in the uplink subframe, Determining the first uplink control channel as the target channel.
The network device according to claim 21, wherein the determining unit is specifically configured to:

Determining that the first uplink control channel is the target when a time interval between the first time domain resource and an uplink symbol occupied by the demodulation reference signal DMRS corresponding to the uplink traffic channel is greater than a first time length channel;

And determining, when the time interval between the time resources occupied by the DMRS in the first time domain resource is not greater than the first time length, determining that the uplink traffic channel is the target channel.
The network device according to any one of claims 21 to 24, wherein the determining unit is specifically configured to:

If it is determined that the information is sent on the second uplink control channel, the second uplink control channel occupies a third time domain resource, the second time domain resource includes the third time domain resource, and the second time domain resource The length of the third time domain resource is greater than the length of the third time domain resource, and the first uplink control channel is determined as the target channel.
The network device according to claim 25, wherein the third time domain resource is located before the first time domain resource.