WO2015089766A1

WO2015089766A1 - Control information sending and reception methods, sender device, and receiver device

Info

Publication number: WO2015089766A1
Application number: PCT/CN2013/089835
Authority: WO
Inventors: 张兴炜
Original assignee: 华为技术有限公司
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2015-06-25
Also published as: CN104919848A; CN104919848B

Abstract

Embodiments of the present invention provide control information sending and reception methods, a sender device, and a receiver device. The method comprises: a sender device determining control information, the control information comprising at least one of new data indication (NDI), a redundancy version (RV) and a modulation and coding scheme (MCS); and the sender device sending the control information carried in a reference signal to a receiver device, so that the receiver device determines at least one of the NDI, the RV and the MCS of received data according to the control information. By means of the technical solutions of the present invention, it can be achieved that a sender device indicates one of NDI, an RV and an MCS to a receiver device by using a more flexible mode that saves resources compared with the prior art.

Description

Control information transmitting and receiving method, sender device, and receiver device

The embodiments of the present invention relate to communication technologies, and in particular, to a control information sending and receiving method, a sender device, and a receiver device. Background technique

Long Term Evolution-Advanced (LTE-A) uses a variety of technologies to increase the data rate. However, with the rapid development of wireless communication, the transmission of large-scale services, such as high-definition video services, the load of wireless communication networks. The heavier it is. How to reduce the load on the network has become a research hotspot. Device to Device (D2D) communication came into being and became a key project of the LTE-A Rel-12 version. In this communication mode, the terminal and the terminal can communicate directly without being forwarded by the base station, sharing the data load of the base station.

Figure 1 is a schematic diagram of D2D communication. The communication scenario of D2D can be divided into three types: network coverage, partial network coverage, and no network coverage. In the scenario where there is no network coverage, there is no evolved NodeB (eNB). In the scenario, some UEs are selected as a cluster header (CH). As shown in Figure 1, User Equipment (UE) A is a cluster head. The cluster head provides eNB-like functions, such as Allocating resources to the D2D UEs in the cluster, providing peers, etc., there are eNBs in the network coverage scenario, and some control functions are performed by the eNB. This scenario may also require some cluster heads to complete the resource allocation function. D2D communication is divided into broadcast, multicast, and unicast. In broadcast communication, a broadcast sender device sends data services on a specific resource. As shown in Figure 1, UE B is a broadcast sender device, and other receivers. The device receives data on these resources. As shown in Figure 1, the resource availability of the cluster head may be: In the case of network coverage, the base station allocates a whole block of resources to the cluster head; in the absence of network coverage, the cluster head Get a piece of resources in a competitive way. Then the cluster head informs the members in the cluster of the resource pool obtained by itself, the resource pool is similar to the system bandwidth of the current base station, the cluster head semi-statically allocates resources to the broadcast sender device, and the broadcast sender device is in a section. The resource can be used to send data services during the time. For broadcast communication, most of the control signaling is sent by the cluster to the members in the cluster. The control signaling may include, for example, resource allocation, sender device ID, power control, and more. Multi-input Multi-output (MIMO) related signaling, the cluster head uses a semi-static mode to notify signaling that the period is longer, which can save signaling, and the broadcast sender device broadcasts more frequently. The mode periodically sends data services. The broadcast sender device may be a cluster head or other members in the cluster. The data sent by the broadcast sender device at different sending moments may be duplicated or different. This can be adopted by a new 1-bit. The Data Indication (NDI) is notified to the receiver device. In addition, the Redundancy Version (RV) of the transmitted data and the Modulation and Coding Scheme (MCS) of the transmitted data are also It may be determined by the broadcast sender device. In the current LTE system, the RV generally has 4 values of 0, 1, 2, 3, and the MCS generally has 32 states, so both need to broadcast the sender device to notify Receiver device.

In the prior art, NDI, RV, and MCS are notified to all intra-cluster members by the cluster head; the prior art 2 uses a dedicated control channel that is additionally developed for the broadcast sender device to transmit control signaling including NDI, RV or MCS.

However, in the prior art, since the control signaling of the cluster head is sent for a relatively long time, and the cluster head cannot know whether the broadcast sender device needs to transmit new data, if the broadcast sender device needs to send the information to the cluster head and then the cluster The header burst delay is large, and it is not flexible enough to limit the broadcast of the sender device to send duplicate data and a specific redundancy version if it is limited to the long time resources allocated by the cluster head. In the prior art 2, except for NDI, RV or MCS, other control information is not transmitted by the broadcast sender device, and it is not necessary to separately open a dedicated control channel, and the dedicated control channel needs to occupy a certain resource, when there is no signaling. This will result in wasted resources, and the transmission frequency of the broadcast sender device is relatively large compared to the cluster head. If the broadcast sender device sends most of the control signaling overhead, the design of a control channel for NDI, RV or MCS does not appear. necessary. SUMMARY OF THE INVENTION Embodiments of the present invention provide a method for transmitting and receiving control information, a sender device, and a receiver device, which are used to implement a device that is more flexible and resource-saving with respect to the prior art. At least one of NDI, RV, and MCS is indicated.

A first aspect of the present invention provides a sender device, including:

a determining module, configured to determine control information, where the control information includes at least one of a new data indicating NDI, a redundancy version RV, and a modulation and coding scheme MCS; And a sending module, configured to send the control information to the receiver device along with the reference signal, so that the receiver device determines at least one of the NDI, RV, and MCS of the received data according to the control information.

In a first possible implementation manner of the first aspect, the sending module is further configured to: send the control information to the receiver device along with the at least one reference signal in the subframe.

In conjunction with the first aspect or the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the reference signal includes a demodulation reference signal.

In conjunction with the first aspect or the first or second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the method further includes:

a modulation module, configured to modulate the control information onto the reference signal before the sending module sends the control information to the receiver device with the reference signal;

The sending module is further configured to:

Transmitting the reference signal modulated with the control information to the recipient device.

According to a third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the

Modulating K of the N reference signals using binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to obtain at least one bit, where 1 K N-1 ;

The control information is indicated using the at least one bit.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes:

a mapping module, configured to: before the sending module sends the control information to the receiver device, the control information is mapped to a symbol next to the at least one reference signal; the sending module is further used In:

Transmitting the reference signal and a symbol mapped with the control information to the recipient device. According to a fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the symbol includes at least one column symbol next to the reference signal.

With reference to the first aspect, or any one of the first to the sixth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the receiver device is at least one user equipment UE .

A second aspect of the present invention provides a receiver device, including: a receiving module, configured to receive control information that is sent by the sending device with the reference signal, where the control information includes at least one of a new data indicating NDI, a redundancy version RV, and a modulation and coding scheme MCS; The control information determines at least one of NDI, RV, MCS of the received data.

In a first possible implementation manner of the second aspect, the receiving module is further configured to: receive control information that is sent by the sending device with the at least one reference signal.

In conjunction with the second aspect or the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the reference signal includes a demodulation reference signal.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the receiving module is further configured to:

The reference signal modulated with the control information is received.

In conjunction with the second aspect or the first or second possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the receiving module is further configured to:

The reference signal and a symbol mapped with the control information are received, the symbol including a symbol next to the reference signal.

According to a fourth possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the symbol comprises at least one column symbol next to the reference signal.

With reference to the second aspect or the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the receiver device is at least one user equipment UE.

A third aspect of the present invention provides a sender device, including:

a processor, configured to determine control information, where the control information includes at least one of a new data indication NDI, a redundancy version RV, and a modulation coding scheme MCS;

And a transmitter, configured to send the control information to the receiver device along with the reference signal, so that the receiver device determines at least one of the NDI, RV, and MCS of the received data according to the control information.

In a first possible implementation manner of the third aspect, the transmitter is further configured to: send the control information to the receiver device along with the at least one reference signal in the subframe.

In conjunction with the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the reference signal includes a demodulation reference signal.

In combination with the third aspect or the first or second possible implementation of the third aspect, in the third In a third possible implementation manner, the processor is further configured to: after the transmitter sends the control information to the receiver device, the control information is modulated onto the reference signal;

The transmitter is further configured to:

According to a third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the processor is further configured to:

The control information is indicated using the at least one bit.

With reference to the third aspect or the first or second possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the processor is further configured to: Before the control information is sent to the receiver device with the reference signal, the control information is mapped to the symbol next to the at least one of the reference signals;

The transmitter is further configured to:

Transmitting the reference signal and a symbol mapped with the control information to the recipient device. According to a fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the symbol includes at least one column symbol next to the reference signal.

With reference to the third aspect, or any one of the first to the sixth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the receiver device is at least one user equipment UE .

According to a fourth aspect of the present invention, a receiver device is provided, including:

a receiver, configured to receive control information that is sent by the sender device along with the reference signal, where the control information includes at least one of a new data indication NDI, a redundancy version RV, and a modulation and coding scheme MCS; The control information determines at least one of NDI, RV, MCS of the received data.

In a first possible implementation manner of the fourth aspect, the receiver is further configured to: receive control information that is sent by the sending device with the at least one reference signal.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the reference signal includes a demodulation reference signal. With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the receiver is further configured to:

The reference signal modulated with the control information is received.

With reference to the fourth aspect, or the first or the second possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the receiver is further configured to:

According to a fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the symbol includes at least one column symbol next to the reference signal.

With reference to the fourth aspect, or the first to fifth possible implementation manners of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the receiving device is at least one user equipment UE.

A fifth aspect of the present invention provides a method for transmitting control information, including:

The sender device determines control information, the control information including at least one of a new data indication NDI, a redundancy version RV, and a modulation and coding scheme MCS;

The sender device transmits the control information to the receiver device along with the reference signal, so that the receiver device determines at least one of the NDI, RV, and MCS of the received data according to the control information.

In a first possible implementation manner of the fifth aspect, the sending, by the sending, the sending, by the sending device, the control information to the receiving device,

The sender device transmits the control information to the receiver device along with at least one reference signal in the subframe.

In conjunction with the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the reference signal includes a demodulation reference signal.

With the fifth aspect or the first or second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the sending device sends the control information to the reference signal to Before the receiver device, it also includes:

Transmitting, by the sender device, the control information onto the reference signal;

And sending, by the sender device, the control information to the receiver device with the reference signal, the method includes: the sender device transmitting, to the receiver device, the reference signal modulated with the control information. According to a third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the sending, by the sending device, the control information, on the reference signal, includes: sending The square device modulates K of the N reference signals using binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to obtain at least one bit, where 1 K N-1 _; the sender device The control information is indicated using the at least one bit.

With the fifth aspect or the first or second possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the sending device sends the control information to the reference signal to Before the receiver device, it also includes:

The sender device maps the control information to a symbol beside at least one of the reference signals;

And sending, by the sender device, the control information to the receiver device along with the reference signal, the method includes: sending, by the sender device, the reference signal and a symbol mapped with the control information to the receiver device.

According to a fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the symbol includes at least one column symbol next to the reference signal.

With reference to the fifth aspect, or any one of the first to the sixth possible implementation manners of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the receiver device is at least one user equipment UE .

A sixth aspect of the present invention provides a control information receiving method, including:

Receiving, by the receiving device, control information sent by the sending device with the reference signal, where the control information includes at least one of a new data indicating NDI, a redundancy version RV, and a modulation and coding scheme MCS; and the receiving device is configured according to the control information Determining at least one of NDI, RV, MCS of the received data.

In a first possible implementation manner of the sixth aspect, the receiving, by the receiving device, the control information that is sent by the sending device along with the reference signal, includes:

The receiver device receives control information transmitted by the sender device with at least one reference signal. With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the reference signal includes a demodulation reference signal.

With reference to the sixth aspect or the first or second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the receiving device, The control information sent by the number, including:

The receiver device receives the reference signal modulated with the control information.

With reference to the sixth aspect, or the first or the second possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the receiver device receives the control that the sender device sends the reference signal Information, including:

The recipient device receives the reference signal and a symbol to which the control information is mapped, the symbol including a symbol next to the reference signal.

According to a fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the symbol includes at least one column symbol next to the reference signal.

With reference to the sixth aspect, or the first to fifth possible implementation manners of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the receiving device is at least one user equipment UE.

The control information sending and receiving method, the sender device, and the receiver device provided by the embodiment first determine the control information by the determining module 11, the control information includes at least one of NDI, RV, and MCS, and the sending module 11 further controls the information. Sending to the receiving device with the reference signal, so that the receiving device determines at least one of the NDI, RV, and MCS of the received data according to the control information, so that the sending device can be more flexible with respect to the prior art. A more resource efficient way indicates to the recipient device at least one of NDI, RV, MCS. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

Figure 1 is a schematic diagram of D2D communication;

2 is a schematic structural diagram of Embodiment 1 of a sender device according to the present invention;

₃ is a schematic structural diagram of Embodiment 2 of a sender device according to the present invention;

4A is a schematic structural diagram of Embodiment 3 of a sender device according to the present invention;

4B-4D are schematic diagrams showing possible mapping manners of control information in at least one column symbol next to a reference signal in Embodiment 3 of the sender device according to the present invention; FIG. 5 is a schematic structural diagram of Embodiment 4 of a sender device according to the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 1 of a receiver device according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 2 of a receiver device according to the present invention;

8 is a flowchart of Embodiment 1 of a method for transmitting control information provided by the present invention;

FIG. 9 is a flowchart of Embodiment 2 of a method for sending control information according to the present invention;

FIG. 10 is a flowchart of Embodiment 3 of a method for sending control information according to the present invention;

FIG. 11 is a flowchart of Embodiment 1 of a method for receiving control information according to the present invention;

FIG. 12 is a flowchart of Embodiment 2 of a method for receiving control information according to the present invention;

FIG. 13 is a flowchart of Embodiment 3 of a method for receiving control information according to 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 a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The "sender device" in the embodiment of the present invention refers to a terminal that transmits data in a D2D communication mode, and the "receiver device" refers to a terminal that receives data in a D2D communication mode. Generally, the sender device is a terminal, the receiver device is one or more terminals, and the terminal having a service transmission requirement is used as a sender device. In a scenario with network coverage, the base station may be a data service sender device or a member of the receiver device.

2 is a schematic structural diagram of Embodiment 1 of a sender device according to the present invention. As shown in FIG. 2, the sender device of this embodiment includes: a determining module 11 and a sending module 12, wherein the determining module 11 is configured to determine control. The information, the control information includes at least one of NDI, RV, and MCS; the sending module 12 is configured to send the control information to the receiver device along with the reference signal, so that the receiver device determines the NDI, RV of the received data according to the control information. At least one of the MCS.

Specifically, the scenario applicable to the embodiment may be that the broadcast sender device notifies the other members of the D2D communication group of the NDI, the RV, and the MCS in the D2D communication, and the sender device in this embodiment may be the D2D communication. In the broadcast sender device, the receiver device can be other members of the D2D communication group. Optionally, the receiver device is at least one UE.

It should be noted that the technical solution in this embodiment may also be used in a scenario in which the sender device sends control information to the receiver device in other scenarios.

In this embodiment, the sender device sends the control information to the receiver device along with the reference signal, and the sender device can determine control information such as NDI, RV, and MCS, which can avoid the NDI, RV, and MCS from the cluster head in the prior art. Notifying all cluster members that the cluster head cannot know the NDI, RV, and MCS, delay, or inflexibility issues. By transmitting the control information along with the reference signal, the prior art 2 can be solved by additionally creating a dedicated control channel. The problem of resource waste caused by the broadcast sender device transmitting control signaling including NDI, RV, and MCS.

The sender device provided in this embodiment first determines the control information by the determining module 11, and the control information includes at least one of NDI, RV, and MCS, and the sending module 12 sends the control information to the receiver device along with the reference signal, so that The receiving device determines at least one of the NDI, the RV, and the MCS of the received data according to the control information, so that the sending device can indicate the NDI to the receiving device in a more flexible and resource-saving manner relative to the prior art. At least one of RV, MCS.

Further, the sending module 12 is further configured to: send the control information to the receiver device along with at least one reference signal in the subframe.

Further, the reference signal includes a Demodulation Reference Signal (DMRS).

FIG. 3 is a schematic structural diagram of Embodiment 2 of a sender device according to the present invention. As shown in FIG. 3, the sender device of the present embodiment, based on the embodiment shown in FIG. 2, further includes: a modulation module 13 is used. Before the sending module 12 sends the control information to the receiving device with the reference signal, the control information is modulated onto the reference signal;

The sending module 12 is further configured to: send a reference signal modulated with control information to the receiver device. Specifically, at least one of NDI, RV, and MCS may be modulated on the DMRS, and different constellation points indicate different states.

Further, the modulation module 13 is specifically used to:

Modulating K of the N reference signals using Binary Phase-Shift Keying (BPSK) and/or Quadrature Phase-Shift Keying (QPSK) to obtain at least one bit , where 1 K N-1 ; At least one bit is used to indicate control information.

For example, one possible way is to use BPSK to modulate at least one DMRS. According to the BPSK modulation method, the DMRS can only carry 1 bit of information, and the two constellation points of BPSK respectively represent 1 bit of information. Including the following two situations:

Case 1: The information of the 1 bit is used to indicate the NDI, wherein the NDI is 1 to indicate that the transmitted data is new data, and cannot be combined with the previously received data, and can only be combined with the data received later, if demodulated. The NDI carried by the DMRS corresponding to the latter data is also 1, and the reception cannot be combined, indicating that it is sent only once; when the NDI is 0, the transmitted data is duplicate data, and can be combined with the previously received data to be demodulated.

Case 2: The 1 bit information is used to indicate two values in the RV. For example, an RV of 1 indicates that the transmitted data has an RV of 2; and an RV of 0 indicates that the transmitted data has an RV of 0.

Another possible way is to use QPSK to modulate at least one DMRS. According to the QPSK modulation method, the DMRS can carry 2 bits of information, and the 4 constellation points of the QPSK respectively represent 2 bits of information, which can include the following two situations. :

Case 1: One bit is used to represent NDI, and NDI is 1 to indicate that the transmitted data is new data. It cannot be combined with the previously received data and demodulated. It can only be combined with the data received later, if demodulated. The NDI carried by the DMRS corresponding to the data is also 1, and cannot be combined and received, indicating that it is sent only once; when NDI is 0, the transmitted data is duplicate data, and can be combined with the previously received data to be demodulated. The other 1 bit is used to indicate the RV of the transmitted data. It can only indicate two values of the RV of the transmitted data. For example, 0 indicates that the RV of the transmitted data is 0, and 1 indicates that the RV of the transmitted data is 2; or 0. Indicates that the RV of the transmitted data is 1, and 1 indicates that the RV of the transmitted data is 3.

Case 2: Both bits are used to indicate the RV of the transmitted data. For example, 00 indicates that the RV of the transmitted data is 0, 01 indicates that the RV of the transmitted data is 1; or 10 indicates that the RV of the transmitted data is 2, and 1 1 indicates The RV of the transmitted data is 3.

If there are only two DMRSs in a subframe, then for one DMRS, for example, the second DMRS may be modulated; if there are N DMRSs in one subframe, then K DMRSs are modulated, where 1 K N- 1. For the above two possible implementation manners, if two or more DMRSs are modulated, more bits can be represented. If there are three DMRSs, the second DMRS is modulated by BPSK, and the third is used by QPSK. DMRS modulation, a total of 3 bits of information can be represented, so that all values of NDI and RV can be notified, 1 The bit is used to indicate NDI: NDI is 1 to indicate that the transmitted data is new data, and cannot be combined with the previously received data, and can only be demodulated with the data received later, if the DMRS corresponding to the data after demodulation is carried. If the NDI is also 1, it cannot be combined and received, indicating that it is sent only once; if NDI is 0, the transmitted data is duplicate data, and it can be combined with the previously received data to demodulate. The other two bits are used to indicate the RV of the transmitted data. For example, 00 indicates that the RV of the transmitted data is 0, 01 indicates that the RV of the transmitted data is 1, 10 indicates that the RV of the transmitted data is 2, and 11 indicates the RV of the transmitted data. Is 3.

The sender device provided in this embodiment first determines the control information by the determining module 11, the control information includes at least one of NDI, RV, and MCS, and the modulation module 13 sends the control information to the receiver device along with the reference signal at the sending module 12. Previously, the control information is modulated onto the reference signal, and the sending module 12 sends the reference signal modulated with the control information to the receiving device, so that the transmitting device can receive the device in a more flexible and resource-saving manner than the prior art. The party device indicates at least one of NDI, RV, and MCS.

4A is a schematic structural diagram of a third embodiment of a sender device according to the present invention. As shown in FIG. 4A, the sender device of the present embodiment, based on the embodiment shown in FIG. 2, further includes: Before the sending module 12 sends the control information to the receiving device with the reference signal, the control information is mapped to the symbol next to the at least one reference signal; the sending module 12 is further configured to: send the reference signal to the receiving device and map the control information symbol.

For example, the sender device may send at least one of the NDI, the RV, and the MCS along the symbols on both sides of the DMRS, and punctured the original data to be used for transmitting at least one of the NDI, the RV, and the MCS. .

Further, the symbol includes at least one column of symbols next to the reference signal.

4B-4D are schematic diagrams showing possible mapping manners of control information in at least one column symbol next to the reference signal in the third embodiment of the sender device according to the present invention. As shown in FIG. 4B, the NDI is placed on a column of symbols next to the DMRS. RV is placed on the symbol next to NDI. NDI and RV can be arranged from low frequency to high frequency. It can be understood that it can also be arranged from high frequency to low frequency. NDI is attached to a column of symbols on both sides of DMRS, and then RV is outside. It can ensure that NDI obtains better transmission. ^ As shown in Figure 4C, this mapping mode places RV on a column of symbols next to DMRS. NDI is placed on a column of symbols next to RV. NDI and RV can be from low frequency to high frequency. Arrangement, it can be understood that it can also be arranged from high frequency to low frequency, RV is attached to the symbols on both sides of the DMRS, and then goes out. It is NDI, which can guarantee better transmission performance of RV. As shown in Fig. 4D, NDI and RV are placed on a column of symbols next to the DMRS, and NDI and RV are sequentially arranged from a low frequency to a high frequency. It can be understood that the high frequency to the low frequency can be sequentially arranged, or the RV is low frequency. The high frequency is arranged and the NDI is arranged from the high frequency to the low frequency, or the NDI is arranged from the low frequency to the high frequency and the RV is arranged from the high frequency to the low frequency.

The sender device provided in this embodiment first determines the control information by the determining module 11, and the control information includes at least one of NDI, RV, and MCS, and the mapping module 14 sends the control information to the receiver device along with the reference signal at the sending module 12. Previously, the control information is mapped to the symbol next to the at least one reference signal, and the sending module 12 sends the reference signal and the symbol mapped with the control information to the receiving device, so that the transmitting device can be more flexible with respect to the prior art. A more resource efficient way indicates to the recipient device at least one of NDI, RV, MCS.

5 is a schematic structural diagram of a fourth embodiment of a sender device according to the present invention. As shown in FIG. 5, the sender device of the embodiment includes: a transmitter 51, a receiver 52, a memory 53, and a transmitter 51, respectively. The receiver 52 is coupled to the processor 54 of the memory 53. Of course, the sender device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device. The embodiment of the present invention is not limited herein.

The memory 53 stores a set of program codes, and the processor 54 is configured to call the program code stored in the memory 53 for performing the following operations:

Determining control information, the control information comprising at least one of NDI, RV, MCS; transmitting the control information to the receiver device with the reference signal, so that the receiver device determines the NDI, RV or MCS of the received data according to the control information At least one of them.

Further, the transmitter 51 is further configured to: transmit control information to the recipient device along with at least one reference signal in the subframe.

Further, the reference signal includes a demodulation reference signal.

Further, the processor 54 is further configured to modulate the control information onto the reference signal before the transmitter transmits the control information to the receiver device with the reference signal;

The transmitter 51 is further configured to: transmit, to the receiver device, a reference signal modulated with control information.

Further, the processor 54 is also used to:

The sender device modulates K of the N reference signals using binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to obtain at least one bit, where 1 K N-1 _;

The sender device indicates control information using at least one bit. Further, the processor 54 is further configured to map the control information to the symbol next to the at least one reference signal before the transmitter sends the control information to the receiver device with the reference signal;

Transmitter 51 is also used to:

The sender device transmits a reference signal and a symbol mapped with control information to the receiver device.

Further, the receiving device is at least one UE.

The sender device in this embodiment is an entity embodiment corresponding to the embodiment shown in FIG. 1. The principle and technical effects are similar, and details are not described herein again.

FIG. 6 is a schematic structural diagram of Embodiment 1 of a receiver device according to the present invention. As shown in FIG. 6, the receiver device in this embodiment may include: a receiving module 61 and a determining module 62, where the receiving module 61 is configured to receive The control device sends the control information along with the reference signal, and the control information includes at least one of NDI, RV, and MCS. The determining module 62 is configured to determine at least one of the NDI, the RV, and the MCS of the received data according to the control information.

Further, the receiving module 61 is further configured to: receive control information sent by the sender device along with the at least one reference signal.

Further, the reference signal includes a demodulation reference signal.

Further, the receiving module 61 is further configured to: receive a reference signal modulated with control information.

Further, the receiving module 61 is further configured to: receive the reference signal and the symbol mapped with the control information, and the symbol includes a symbol next to the reference signal.

Further, the receiver device is at least one user equipment UE.

The receiving device provided by the embodiment is configured to receive, by the receiving module 61, control information that is sent by the sending device along with the reference signal, where the control information includes at least one of NDI, RV, and MCS; and the determining module 62 is configured to determine, according to the control information, At least one of the NDI, the RV, and the MCS of the received data may implement the receiver device in the NDI, RV, and MCS indicated to the receiving sender device in a more flexible and resource-saving manner relative to the prior art. At least one of them.

FIG. 7 is a schematic structural diagram of Embodiment 2 of a receiver device according to the present invention. As shown in FIG. 7, the receiver device in this embodiment may include: a transmitter 71, a receiver 72, a memory 73, and a transmitter 71, respectively. The receiver 72 is connected to the processor 74 and the memory 74. Of course, the sender device may also include an antenna, a baseband processing component, a medium RF processing component, an input/output device, and the like. The components of the present invention are not limited herein.

The memory 73 stores a set of program codes, and the processor 74 is configured to call the program code stored in the memory 73 for performing the following operations:

Receiving control information sent by the sender device along with the reference signal, where the control information includes at least one of NDI, RV, and MCS;

At least one of NDI, RV, MCS of the received data is determined based on the control information. Further, the receiver 72 is also used to:

Receiving control information sent by the sender device with at least one reference signal.

Further, the reference signal includes a demodulation reference signal.

Further, the receiver 72 is also used to:

A reference signal modulated with control information is received.

Further, the receiver 72 is also used to:

A reference signal and a symbol mapped with control information are received, the symbol including a symbol next to the reference signal. Further, the symbol includes at least one column of symbols next to the reference signal.

Further, the receiver device is at least one user equipment UE.

The receiver device in this embodiment is an entity embodiment corresponding to the embodiment shown in FIG. 6. The principle and technical effects are similar, and details are not described herein again.

FIG. 8 is a flowchart of Embodiment 1 of a method for transmitting control information according to the present invention. As shown in FIG. 8, the method for transmitting control information in this embodiment includes:

S801. The sender device determines control information, where the control information includes at least one of NDI, RV, and MCS.

S802. The sender device sends the control information to the receiver device along with the reference signal, so that the receiver device determines at least one of the NDI, RV, and MCS of the received data according to the control information.

Further, the S802 can include:

The sender device transmits control information to the recipient device along with at least one reference signal in the subframe.

Further, the reference signal includes a demodulation reference signal.

FIG. 9 is a flowchart of Embodiment 2 of a method for transmitting control information according to the present invention. As shown in FIG. 9, the method for transmitting control information in this embodiment may include: S901, sending according to the embodiment shown in FIG. The party device determines the control information, and the control information includes the NDI, RV, and MCS At least one.

5902. The sender device modulates the control information onto the reference signal.

Further, the sender device modulates K of the N reference signals using binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to obtain at least one bit, wherein 1 ^K^N-1; The sender device indicates control information using at least one bit.

S903. The sender device sends a reference signal modulated with control information to the receiver device.

FIG. 10 is a flowchart of Embodiment 3 of a method for transmitting control information according to the present invention. As shown in FIG. 10, the method for transmitting control information in this embodiment may include: S100K sender on the basis of the embodiment shown in FIG. The device determines control information, and the control information includes at least one of NDI, RV, and MCS.

51002, the sender device maps the control information to a symbol next to the at least one reference signal.

51003. The sender device sends a reference signal and a symbol mapped with the control information to the receiver device.

Further, the receiver device is at least one user equipment UE.

Embodiments 1 to 3 of the above-mentioned control information transmission method may be performed by the sender device of FIG. 1 to FIG. 3 or FIG. 5, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 11 is a flowchart of Embodiment 1 of a method for receiving control information according to the present invention. As shown in FIG. 11, the method for receiving control information in this embodiment includes:

The S110K receiver device receives control information sent by the sender device along with the reference signal, and the control information includes at least one of NDI, RV, and MCS.

S1102: The receiver device determines at least one of NDI, RV, and MCS of the received data according to the control information.

Further, S1101 may include:

The receiving device receives control information transmitted by the transmitting device with at least one reference signal.

Further, the reference signal includes a demodulation reference signal.

FIG. 12 is a flowchart of Embodiment 2 of the method for receiving control information according to the present invention. As shown in FIG. 12, the control information receiving method of the present embodiment may include: S1201, receiving, according to the embodiment shown in FIG. The party device receives a reference signal modulated with control information, and the control information includes at least one of NDI, RV, and MCS. S1202: The receiver device determines at least one of NDI, RV, and MCS of the received data according to the control information.

FIG. 13 is a flowchart of Embodiment 3 of the method for receiving control information according to the present invention. As shown in FIG. 13, the control information receiving method in this embodiment may include: S130K receiving party, based on the embodiment shown in FIG. The device receives the reference signal and a symbol mapped with control information, the symbol including the symbol next to the reference signal.

S1302: The receiver device determines at least one of NDI, RV, and MCS of the received data according to the control information.

Further, the receiver device is at least one user equipment UE.

Embodiments 1 to 3 of the foregoing control information receiving method may be performed by the receiving device of FIG. 6 or FIG. 7, and the implementation principle and technical effects are similar, and details are not described herein again.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method 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, and may be electrical, mechanical or otherwise.

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 solution of the embodiment.

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 hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) Or a processor performs part of the steps of the method of the 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, which can store program codes. .

A person skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed, that is, the device is installed. The internal structure is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the device described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A sender device, characterized by including:

Determining module, used to determine control information, the control information includes at least one of new data indication NDI, redundancy version RV, and modulation coding scheme MCS;

A sending module, configured to send the control information along with the reference signal to the receiving device, so that the receiving device determines at least one of NDI, RV, and MCS of the received data based on the control information.

2. The sender device according to claim 1, characterized in that the sending module is also used for:

The control information is sent to the receiving device along with at least one reference signal in the subframe.

3. The sender device according to claim 1 or 2, characterized in that the reference signal includes a demodulation reference signal.

4. The sender device according to any one of claims 1 to 3, further comprising: a modulation module, configured to modulate the control information along with the reference signal to the receiver device before the sender module sends the reference signal to the receiver device. The control information is modulated onto the reference signal;

The sending module is also used for:

The reference signal modulated with the control information is sent to the recipient device.

5. The sender device according to claim 4, characterized in that the modulation module is specifically used for:

Use binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to modulate K of the N reference signals to obtain at least one bit, where, 1 K N-1;

The control information is indicated using the at least one bit.

6. The sender device according to any one of claims 1-3, further comprising: a mapping module, configured to send the control information along with the reference signal to the receiver device before the sending module , mapping the control information to at least one symbol next to the reference signal; the sending module is also used to:

The reference signal and the symbol mapped with the control information are sent to the receiving device.

7. The sender device according to claim 6, wherein the symbols include at least one column of symbols next to the reference signal.

8. The sender device according to any one of claims 1-7, characterized in that: the receiving device The receiving device is at least one user equipment UE.

9. A receiving device, characterized in that it includes:

A receiving module, configured to receive control information sent by the sender device along with the reference signal, where the control information includes at least one of a new data indication NDI, a redundant version RV, and a modulation coding scheme MCS; a determining module, configured to determine according to the The control information determines at least one of NDI, RV, and MCS of the received data.

10. The receiving device according to claim 9, characterized in that the receiving module is also used for:

Receive control information sent by the sender device along with at least one reference signal.

11. The receiving device according to claim 9 or 10, characterized in that the reference signal includes a demodulation reference signal.

12. The receiving device according to any one of claims 9-11, characterized in that the receiving module is also used for:

The reference signal modulated with the control information is received.

13. The receiving device according to any one of claims 9-11, characterized in that the receiving module is also used for:

The reference signal and symbols mapped with the control information are received, and the symbols include symbols next to the reference signal.

14. The receiving device according to claim 13, wherein the symbols include at least one column of symbols next to the reference signal.

15. The receiving device according to any one of claims 9-14, characterized in that the receiving device is at least one user equipment UE.

16. A sender device, characterized by: including:

A processor configured to determine control information, where the control information includes at least one of a new data indication NDI, a redundancy version RV, and a modulation coding scheme MCS;

The transmitter is configured to send the control information along with the reference signal to the receiving device, so that the receiving device determines at least one of NDI, RV, and MCS of the received data based on the control information.

17. The sender device according to claim 16, characterized in that the transmitter is also used for: The control information is sent to the receiving device along with at least one reference signal in the subframe.

18. The sender device according to claim 16 or 17, characterized in that the reference signal includes a demodulation reference signal.

19. The sender device according to any one of claims 16 to 18, characterized in that, the processor is further configured to, before the sender sends the control information along with the reference signal to the receiver device, The control information is modulated onto the reference signal;

The transmitter is also used for:

20. The sender device according to claim 19, characterized in that the processor is also used to:

The control information is indicated using the at least one bit.

21. The sender device according to any one of claims 16-18, characterized in that the processor is further configured to send the control information along with the reference signal to the receiver device before the transmitter , mapping the control information to a symbol next to at least one of the reference signals;

The transmitter is also used for:

22. The sender device according to claim 21, wherein the symbols include at least one column of symbols next to the reference signal.

23. The sender device according to any one of claims 16-22, characterized in that the receiver device is at least one user equipment UE.

24. A receiving device, characterized in that it includes:

A receiver, configured to receive control information sent by the sender device along with the reference signal, where the control information includes at least one of a new data indication NDI, a redundant version RV, and a modulation coding scheme MCS; a processor, configured according to the The control information determines at least one of NDI, RV, and MCS of the received data.

25. The receiver device according to claim 24, characterized in that the receiver is also used for:

26. The receiving device according to claim 24 or 25, characterized in that the reference signal includes a demodulation reference signal.

27. The receiver device according to any one of claims 24-26, characterized in that the receiver is also used for:

The reference signal modulated with the control information is received.

28. The receiver device according to any one of claims 24-26, characterized in that the receiver is also used for:

29. The receiving device according to claim 28, wherein the symbols include at least one column of symbols next to the reference signal.

30. The receiving device according to any one of claims 24 to 29, characterized in that the receiving device is at least one user equipment UE.

31. A method for sending control information, characterized by including:

The sender device determines control information, where the control information includes at least one of new data indication NDI, redundancy version RV, and modulation coding scheme MCS;

The sender device sends the control information along with the reference signal to the receiver device, so that the receiver device determines at least one of NDI, RV, and MCS of the received data based on the control information.

32. The method according to claim 31, characterized in that the sender device sends the control information along with the reference signal to the receiver device, including:

The sender device sends the control information to the receiver device along with at least one reference signal in the subframe.

33. The method according to claim 31 or 32, characterized in that the reference signal includes a demodulation reference signal.

34. The method according to any one of claims 31-33, characterized in that, before the sender device sends the control information along with the reference signal to the receiver device, it further includes:

The sender device modulates the control information onto the reference signal;

The sending device sends the control information along with the reference signal to the receiving device, including: the sending device sends the reference modulated with the control information to the receiving device. Signal.

35. The method according to claim 34, characterized in that the sending device modulates the control information onto the reference signal, including:

The sender device uses binary phase shift keying BPSK and/or quadrature phase shift keying QPSK to modulate K of the N reference signals to obtain at least one bit, where, 1 K N-1; The sending device uses the at least one bit to indicate the control information.

36. The method according to any one of claims 31-33, characterized in that, before the sender device sends the control information along with the reference signal to the receiver device, it further includes:

The sender device maps the control information to a symbol next to at least one of the reference signals;

The sender device sends the control information along with the reference signal to the receiver device, including: the sender device sends the reference signal and symbols mapped with the control information to the receiver device.

37. The method of claim 36, wherein the symbols include at least one column of symbols next to the reference signal.

38. The method according to any one of claims 31 to 37, characterized in that the receiving device is at least one user equipment UE.

39. A method for receiving control information, characterized by including:

The receiving device receives the control information sent by the sending device along with the reference signal, and the control information includes at least one of a new data indication NDI, a redundant version RV, and a modulation and coding scheme MCS; the receiving device receives the control information according to the control information. Determine at least one of NDI, RV, and MCS of the received data.

40. The method according to claim 39, characterized in that the receiving device receives the control information sent by the sending device along with the reference signal, including:

The receiving device receives control information sent along with at least one reference signal by the sending device.

41. The method according to claim 39 or 40, characterized in that the reference signal includes a demodulation reference signal.

42. The method according to any one of claims 39-41, characterized in that the receiving device receives the control information sent by the sending device along with the reference signal, including:

The receiving device receives the reference signal modulated with the control information.

43. The method according to any one of claims 39-41, characterized in that the receiving device receives the control information sent by the sending device along with the reference signal, including:

The receiving device receives the reference signal and symbols mapped with the control information, where the symbols include symbols next to the reference signal.

44. The method of claim 43, wherein the symbols include at least one column of symbols next to the reference signal.

45. The method according to any one of claims 39-44, characterized in that the receiving device is at least one user equipment UE.