WO2013149573A1

WO2013149573A1 - Signal transmission method, network device and user equipment

Info

Publication number: WO2013149573A1
Application number: PCT/CN2013/073578
Authority: WO
Inventors: 周明宇; 李强
Original assignee: 华为技术有限公司
Priority date: 2012-04-01
Filing date: 2013-04-01
Publication date: 2013-10-10
Also published as: CN103368684A

Abstract

Disclosed are a signal transmission method, a network device and user equipment. The method comprises: sending a first scheduling solution to user equipment, the first scheduling solution being used for indicating to the user equipment to send an uplink data signal on a first frequency band; on the first frequency band, receiving a measurement signal which is sent by the user equipment according to the first scheduling solution; sending to the user equipment scheduling adjustment information which is determined according to the measurement signal, the scheduling adjustment information being used by the user equipment to determine a second scheduling solution for sending the uplink data signal; and on the first frequency band, receiving the uplink data signal which is sent by the user equipment according to the second scheduling solution. The signal transmission method, network device and user equipment in the embodiments of the present invention can increase the compatibility between the scheduling solutions and the channel quality during signal transmission, so that the signal transmission reliability can be increased, thereby being able to increase the signal transmission efficiency.

Description

Method for transmitting signals, network device and user equipment

This application claims priority to Chinese Patent Application No. 201210096077.4, entitled "Method of Transmitting Signals, Network Equipment and User Equipment", filed on April 1, 2012, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications, and in particular, to a method, a network device, and a user equipment for transmitting signals in the field of communications.

BACKGROUND OF THE INVENTION In a wireless communication system, in order to improve transmission efficiency while ensuring transmission reliability, a network device generally estimates the quality of a wireless channel for transmitting signals, and determines a scheduling scheme according to the quality of the wireless channel. If the estimated quality of the radio channel is good, a scheduling scheme with higher transmission efficiency is adopted; if the estimated quality of the radio channel is poor, a scheduling scheme with low transmission efficiency but generally high reliability is adopted.

In current wireless communication systems, the quality information of the wireless channel is usually obtained by means of transmission of a reference signal (referred to as "RS"). For example, in a downlink transmission process of a Long Term Evolution (LTE) system, a network device transmits a channel state information reference signal to a user equipment (User Equipment, referred to as "UE") (Channel State Information). a reference signal, referred to as a "CSI-RS", and transmitting the CSI-RS to the UE; the UE measures the received CSI-RS according to the CSI-RS parameter, thereby obtaining the quality of the downlink channel. And determining a recommended scheduling scheme, and feeding back to the network device; and determining, by the network device, the final downlink scheduling scheme according to the recommended scheduling scheme fed back by the UE.

For example, in the uplink transmission process of the LTE system, the network device sends a parameter of a Sounding Reference Signal ("SRS") to the UE;

After the SRS parameter is sent, the SRS is sent according to the parameter; so that the network device can obtain the quality of the uplink channel by measuring the SRS sent by the UE, and determine the final uplink scheduling scheme.

However, in a wireless communication system, a signal sent by one sender may be interfered by a signal sent by another sender; since the measurement time is different from the signal transmission time, if both The disturbance condition at the moment changes drastically, and the determined scheduling scheme does not conform to the channel quality when the signal is transmitted. For example, in a cellular communication system, the signal transmitted by UE1 to the receiver corresponding to cell 1 is interfered by UE2 from cell 2 and UE3 from cell 3, wherein UE2 is interfered by UE2 due to the receiver far away from cell 1. It is weak, and UE3 is more likely to cause interference due to the receiver close to cell 1. If the cell 1 measures the signal transmitted by the UE1 at the first moment, the scheduling scheme of the UE1 is determined, and at this time, the UE2 transmits a signal (interference to the signal transmitted by the UE1), and the UE3 does not transmit a signal (the signal that is not transmitted to the UE1) In this case, the cell 1 determines that the transmission efficiency corresponding to the scheduling scheme of the UE1 is generally high. After the cell 1 notifies the UE1 of the determined scheduling scheme, the UE1 transmits the uplink signal according to the scheduling scheme at the second moment, and If, at the second moment, the UE3 sends a signal (strong interference to the signal transmitted by the UE1;), and the UE2 does not transmit a signal (does not interfere with the signal transmitted by the UE1), the cell 1 pre-determines the scheduling scheme for the UE1. The channel quality of the UE1 at the second moment cannot be accurately matched, and thus the signal transmitted by the UE1 may not be correctly received by the cell 1, that is, the reliability of the signal transmission is low.

SUMMARY OF THE INVENTION The embodiments of the present invention provide a method for transmitting a signal, a network device, and a user equipment, which can improve the matching of the channel quality of the scheduling scheme and the signal transmission time, thereby improving the reliability of signal transmission.

In an aspect, the embodiment of the present invention provides a method for transmitting a signal, where the method includes: sending a first scheduling scheme to a user equipment, where the first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on a first frequency band; And receiving, by the user equipment, a measurement signal that is sent by the user equipment according to the first scheduling scheme, and sending, to the user equipment, scheduling adjustment information that is determined according to the measurement signal, where the scheduling adjustment information is used by the user equipment to determine to send the uplink data. a second scheduling scheme of the signal; receiving, on the first frequency band, the uplink data signal sent by the user equipment according to the second scheduling scheme.

On the other hand, an embodiment of the present invention provides a method for transmitting a signal, where the method includes: receiving a first scheduling scheme sent by a network device, where the first scheduling scheme is used to indicate that the user equipment is Sending an uplink data signal on the first frequency band; transmitting, according to the first scheduling scheme, a measurement signal to the network device on the first frequency band; detecting scheduling adjustment information that is sent by the network device according to the measurement signal, and detecting the As a result of scheduling the adjustment information, determining a second scheduling scheme for transmitting the uplink data signal; and transmitting, according to the second scheduling scheme, the uplink data signal to the network device on the first frequency band.

In a further aspect, the embodiment of the present invention provides a method for transmitting a signal, where the method includes: sending a first scheduling scheme to a user equipment, where the first scheduling scheme is used to indicate that the user equipment receives a downlink data signal on a first frequency band. Transmitting a measurement signal to the user equipment on the first frequency band; receiving reference scheduling information determined by the user equipment according to the measurement signal, and determining scheduling adjustment information according to the reference scheduling information, where the scheduling adjustment information is used to determine a direction The user equipment sends a second scheduling scheme of the downlink data signal, and sends the scheduling adjustment information to the user equipment. According to the second scheduling scheme, the downlink data signal is sent to the user equipment in the first frequency band.

In a further aspect, the embodiment of the present invention provides a method for transmitting a signal, where the method includes: receiving, by a network device, a first scheduling scheme, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band. Receiving, according to the first scheduling scheme, a measurement signal sent by the network device on the first frequency band; transmitting, to the network device, reference scheduling information determined according to the measurement signal; detecting, by the network device, determining, according to the reference scheduling information, The scheduling adjustment information is used to determine a second scheduling scheme for receiving the downlink data signal. According to the second scheduling scheme, the downlink data signal sent by the network device is received on the first frequency band.

In a further aspect, the embodiment of the present invention provides a network device, where the network device includes: a first sending module, configured to send a first scheduling scheme to a user equipment, where the first scheduling scheme is used to indicate that the user equipment is in the first Sending an uplink data signal on the frequency band; the first receiving module is configured to receive, on the first frequency band, a measurement signal that is sent by the user equipment according to the first scheduling scheme; and a second sending module, configured to send, according to the measurement, the user equipment a scheduling adjustment information determined by the signal, the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for transmitting the uplink data signal, and a second receiving module, configured to receive, by using the second scheduling, the user equipment on the first frequency band The uplink data signal sent by the scheme.

In a further aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a receiving module, configured to receive a first scheduling scheme sent by a network device, where the first scheduling scheme is used to indicate that the user equipment is in a first frequency band. Sending an uplink data signal; a first sending module, configured to The first scheduling scheme sends a measurement signal to the network device on the first frequency band, and the detection module is configured to detect scheduling adjustment information that is determined by the network device and is determined according to the measurement signal, and is configured according to the result of detecting the scheduling adjustment information. And determining, by the second sending module, the uplink data signal sent to the network device on the first frequency band according to the second scheduling scheme.

In a further aspect, the embodiment of the present invention provides a network device, where the network device includes: a first sending module, configured to send a first scheduling scheme to a user equipment, where the first scheduling scheme is used to indicate that the user equipment is in the first Receiving a downlink data signal on a frequency band; a second sending module, configured to send a measurement signal to the user equipment on the first frequency band; and a receiving module, configured to receive reference scheduling information that is sent by the user equipment and determined according to the measurement signal, and And determining, according to the reference scheduling information, scheduling adjustment information, where the scheduling adjustment information is used to determine a second scheduling scheme for sending the downlink data signal to the user equipment, where the third sending module is configured to send the scheduling adjustment information to the user equipment; And a sending module, configured to send the downlink data signal to the user equipment on the first frequency band according to the second scheduling scheme.

In a further aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a first receiving module, configured to receive a first scheduling scheme sent by a network device, where the first scheduling scheme is used to indicate that the user equipment is in the first Receiving a downlink data signal on a frequency band; a second receiving module, configured to receive, according to the first scheduling scheme, a measurement signal sent by the network device on the first frequency band; and a sending module, configured to send, according to the measurement signal, the network signal device Determining reference scheduling information, the detecting module, configured to detect scheduling adjustment information that is sent by the network device according to the reference scheduling information, where the scheduling adjustment information is used to determine a second scheduling scheme for receiving the downlink data signal; And receiving, according to the second scheduling scheme, the downlink data signal sent by the network device on the first frequency band.

Based on the foregoing technical solution, the method for transmitting a signal, the network device, and the user equipment in the embodiment of the present invention, by transmitting a measurement signal and determining scheduling adjustment information according to the measurement signal, thereby adjusting a final scheduling scheme, which can improve scheduling scheme and signal transmission. The matching of channel quality at the moment improves the reliability of signal transmission, thereby improving the efficiency of signal transmission.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will be an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The drawings, which are used in the drawings, are merely described in detail, and it is obvious that the drawings described below are only some embodiments of the present invention, and those skilled in the art, without any creative work, Other drawings can be obtained from these figures.

1 is a schematic flow chart of a method of transmitting a signal according to an embodiment of the present invention.

2 is a schematic block diagram of an application scenario according to an embodiment of the present invention.

FIG. 3 is another schematic flowchart of a method of transmitting a signal according to an embodiment of the present invention. FIG. 4 is a schematic flowchart of a method for transmitting scheduling adjustment information in a multicast manner according to an embodiment of the present invention.

FIG. 5 is a schematic block diagram of information bits of a scheduling adjustment group according to an embodiment of the present invention. FIG. 6 is another schematic flowchart of a method for transmitting scheduling adjustment information in a multicast manner according to an embodiment of the present invention.

Figure Ί is a schematic flow chart of a method of determining the order of information according to an embodiment of the present invention. FIG. 8 is still another schematic flowchart of a method of transmitting a signal according to an embodiment of the present invention. 9 is a schematic block diagram of a control sequence in accordance with an embodiment of the present invention.

Figure 10 is a schematic block diagram of another control sequence in accordance with an embodiment of the present invention.

11 is a schematic flow chart of a method of transmitting a signal according to another embodiment of the present invention. FIG. 12 is a schematic flow chart of a method of transmitting a measurement signal according to another embodiment of the present invention.

FIG. 13 is a schematic flow chart of a method of detecting scheduling adjustment information according to another embodiment of the present invention.

FIG. 14 is another schematic flowchart of a method of detecting scheduling adjustment information according to another embodiment of the present invention.

Figure 15 is a schematic flow diagram of a method of determining an order of information in accordance with another embodiment of the present invention.

Figure 16 is a schematic flow diagram of a method of transmitting an uplink data signal in accordance with another embodiment of the present invention.

FIG. 17 is a schematic flowchart of a method of transmitting a signal according to still another embodiment of the present invention. Figure 18 is another schematic flow diagram of a method of transmitting a signal in accordance with still another embodiment of the present invention.

FIG. 19 is a schematic flowchart of a method for transmitting scheduling adjustment information according to still another embodiment of the present invention. FIG. 20 is another schematic flowchart of a method for transmitting scheduling adjustment information according to still another embodiment of the present invention.

Figure 21 is a schematic flow chart of a method of determining the order of information according to still another embodiment of the present invention.

Figure 22 is a schematic flow diagram of a method of transmitting a downlink data signal in accordance with still another embodiment of the present invention.

23 is a schematic block diagram of a control sequence in accordance with still another embodiment of the present invention.

Figure 24 is still another schematic flow chart of a method of transmitting a signal according to still another embodiment of the present invention.

Figure 25 is a schematic flow diagram of a method of receiving a measurement signal in accordance with still another embodiment of the present invention.

Figure 26 is a schematic flow diagram of a method of detecting scheduling adjustment information in accordance with still another embodiment of the present invention.

Figure 27 is another schematic flowchart of a method of detecting scheduling adjustment information according to still another embodiment of the present invention.

Figure 28 is a schematic flow chart of a method of determining the order of information according to still another embodiment of the present invention.

29 is a schematic block diagram of a network device in accordance with an embodiment of the present invention.

Figure 30 is another schematic block diagram of a network device in accordance with an embodiment of the present invention.

FIG. 31 is still another schematic block diagram of a network device according to an embodiment of the present invention.

32A and 32B are schematic block diagrams of a second transmitting module in accordance with an embodiment of the present invention. Figure 33 is a schematic block diagram of a determining unit in accordance with an embodiment of the present invention.

Figure 34 is a schematic block diagram of a user equipment in accordance with an embodiment of the present invention.

FIG. 35 is another schematic block diagram of a user equipment according to an embodiment of the present invention.

Figure 36 is a schematic block diagram of a first transmitting unit in accordance with an embodiment of the present invention.

37A and 37B are schematic block diagrams of a detection module in accordance with an embodiment of the present invention.

Figure 38 is a schematic block diagram of a determining unit in accordance with an embodiment of the present invention.

FIG. 39 is a schematic block diagram of a second transmitting module according to an embodiment of the present invention.

FIG. 40 is a schematic block diagram of a network device according to another embodiment of the present invention.

FIG. 41 is another schematic block diagram of a network device according to another embodiment of the present invention.

FIG. 42 is still another schematic block diagram of a network device according to another embodiment of the present invention. 43A and 43B are schematic block diagrams of a third transmitting module according to another embodiment of the present invention. Figure 44 is a schematic block diagram of a determining unit in accordance with another embodiment of the present invention.

FIG. 45 is a schematic block diagram of a fourth transmitting module according to another embodiment of the present invention.

Figure 46 is a schematic block diagram of a user equipment in accordance with another embodiment of the present invention.

Figure 47 is a schematic block diagram of a second receiving module in accordance with another embodiment of the present invention.

48A and 48B are schematic block diagrams of a detection module in accordance with another embodiment of the present invention. Figure 49 is a schematic block diagram of a determining unit in accordance with an embodiment of the present invention. The embodiments of the present invention will be clearly and completely described in conjunction with the 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, and not all of them. Example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication ("GSM") system, code division multiple access (Code Division Multiple Access) Called "CDMA") system, Wideband Code Division Multiple Access ("WCDMA") system, General Packet Radio Service ("General Packet Radio Service"), Long Term Evolution ( Long Term Evolution, the tube is called "LTE" system, LTE frequency division duplex (Frequency Division Duplex) system, LTE time division duplex (Time Division Duplex, "TDD"), general purpose A mobile communication system (Unicom Mobile Telecommunication System, referred to as "UMTS"), a Worldwide Interoperability for Microwave Access ("Wireless") communication system, and the like.

It should also be understood that in the embodiment of the present invention, a user equipment (User Equipment, referred to as "UE") may be referred to as a terminal (Terminal), a mobile station (Mobile Station, a cartridge is referred to as "MS"), and a mobile terminal ( Mobile Terminal), etc., the user equipment can communicate with one or more core networks via a Radio Access Network ("RAN"), for example, the user equipment can be a mobile phone (or "cellular""Phone", a computer with a mobile terminal, etc., for example, the user device can also be portable, pocket-sized, handheld, built-in or on-board Mobile devices that exchange voice and/or data with a wireless access network.

In the embodiment of the present invention, the network device may be a base station, an access point (Access Point, called "AP"), a remote radio device (Remote Radio Equipment, called "RRE"), and a remote wireless port ( Remote Radio Head, called "RRH", Remote Radio Unit ("RRU") or Relay Node ("RN"). The base station may be a base station (Base Transceiver Station, called "BTS") in GSM or CDMA, or a base station (NodeB, called "NB") in WCDMA, or an evolved base station in LTE ( Evolutional Node B, the cartridge is called "ENB or e-NodeB"). It should also be understood that, in the embodiment of the present invention, the network device may also be other devices having a scheduling function, such as a UE having a scheduling function, and the like, which is not limited thereto.

For the convenience of description, the following embodiments will be described by taking the LTE system and the user equipment UE as an example, and the network equipment including the base station as an example, but the present invention is not limited thereto.

FIG. 1 shows a schematic flow diagram of a method 1000 of transmitting a signal in accordance with an embodiment of the present invention. As shown in FIG. 1, the method 1000 includes:

S1100: Send a first scheduling scheme to the user equipment, where the first scheduling scheme is used to instruct the user equipment to send an uplink data signal on the first frequency band.

S1200: Receive, on the first frequency band, a measurement signal sent by the user equipment according to the first scheduling scheme.

S1300. The scheduling adjustment information that is determined according to the measurement signal is sent to the user equipment, where the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal.

S1400: Receive, on the first frequency band, the uplink data signal that is sent by the user equipment according to the second scheduling scheme.

In order to improve the reliability of the signal transmission, the network device may first send a first scheduling scheme for transmitting the uplink data signal to the user equipment; after receiving the first scheduling scheme, the user equipment may send the first frequency band according to the first scheduling scheme. After receiving the measurement signal, the network device may determine scheduling adjustment information according to the measurement signal, and send the scheduling adjustment information to the user equipment, where the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal. The user equipment can then send the uplink data signal to the network device on the first frequency band according to the second scheduling scheme, thereby improving the reliability of signal transmission.

Therefore, the method for transmitting a signal according to the embodiment of the present invention can improve the scheduler by transmitting a measurement signal and determining scheduling adjustment information according to the measurement signal, thereby adjusting a final scheduling scheme. The matching of the channel quality with the signal transmission time improves the reliability of signal transmission, thereby improving the efficiency of signal transmission.

The method of transmitting a signal according to an embodiment of the present invention will be described in detail below in conjunction with the present communication system and the present invention, and how the reliability of signal transmission can be improved.

In the current communication system, the uplink signal sent by the UE is controlled by the network device, that is, the network device first sends control signaling to the UE. For example, in the LTE system, the base station sends a physical downlink control channel (Physical Downlink Control Channel) to the UE. The cartridge is called the "PDCCH" signal. After receiving the control signaling, the UE sends an uplink signal according to the control signaling. For example, in an LTE system, control signaling includes one or more of the following scheduling information: frequency band information used by the UE to transmit a signal, modulation mode and/or coding rate information used, power or power used to transmit the signal Adjustment amount information, etc. In addition, if the UE sends an uplink signal through multiple antenna ports, the scheduling information may further include a layer used for transmitting the signal, a precoding matrix used for transmitting the signal, or an antenna port selected by the transmission signal. After receiving the control signaling, the UE may perform channel coding on the data to be sent according to the coding rate; modulate the encoded data according to the modulation scheme; map the symbols generated after modulation to the corresponding frequency band; and finally send the corresponding power through the corresponding power. Go out. Optionally, after acquiring the modulated symbol, the modulated symbol may be mapped to multiple layers of space according to the layer number information, and then the multi-layer signal is pre-coded according to the precoding matrix information, or the selected antenna is selected. Sent on the port. For the sake of cleanliness, we will not repeat them here.

Specifically, in the LTE system, the length of one transmission time interval ("Transmission Time Interval" is "1"), and if the UE receives the control signal sent by the network device at the time of the nth (n is a natural number) Then, the uplink data signal is sent according to the scheduling information in the control signaling at the n+4th time, and the uplink data signal is carried in a Physical Uplink Shared Channel ("PUSCH"). The scheduling information included in the control signaling sent by the network device to the UE at the nth TTI moment is determined according to the measurement result of the uplink channel quality at the time before the nth TTI, where the network device is assumed to be at the nth The network device determines the uplink channel quality to determine the scheduling information of the UE. Specifically, the network device configures the RS resource for the UE, for example, the SRS in the LTE system, and the UE uses the RS resource to send the RS, and the network device receives the reference signal RS. Thereafter, the uplink channel quality of the UE can be estimated.

Taking an application scenario shown in Figure 2 as an example, assume that UEi (i = 1, 2, or 3) to cell k (k = l,

2 or 3) the corresponding uplink channel is H(i, k), the transmit power of UEi is Pi, the receiver of cell k When receiving a signal, it is affected by additive white Gaussian noise (called "AWGN"), and the variance of the noise is Wk. If at the time nth (n is a natural number) TTIs, for example, at the (n-4)th TTI time, UE1 transmits the RS in the first frequency band, and UE2 also transmits the RS in the first frequency band, UE3 does not send the RS. Or transmitting the RS in other frequency bands, at this time, the network device corresponding to the cell 1 receives the signal from the UE1 in the first frequency band and is interfered by the signal sent by the UE2, so that the signal to interference ratio (Sign to Interference plus) The Noise Ratio, called "SINR", can be expressed by the following equation (1):

SINR(n-4) ₌ ^P1X ' ^{H )} | ² ( 1 )

The P2x|H(2,l)| +W1 network device sends control signaling to the UE at the nth TTI moment, instructing the UE to use the scheduling scheme of the control signaling bearer in the first frequency band to send an uplink signal, for example, using modulation The coding scheme (Modulation and Coding Scheme, called "MCS") encodes and modulates the uplink data accordingly. The scheduling scheme is usually such a scheme: the highest throughput scheme among all scheduling schemes in which the SINR required for reliable transmission is less than SINR(nt) is obtained by using the corresponding scheme, such a scheduling scheme is such that if the SINR at the time of data transmission is greater than The required SINR can maximize throughput while ensuring reliable transmission.

Since the transmission time of the uplink data signal is the n+4th ΤΉ, the UE1 transmits the uplink data signal in the first frequency band at the n+4th time. As shown in Table 1, if UE3 also transmits RS in the first frequency band, UE2 does not send RS or transmits RS in other frequency bands. At this time, the SINR of UE1 transmitting signal at the n+4th time can be obtained by the following equation (2) Represents: 8ΙΝΚ(η ₊ 4) = ^&ί_ (2)

P3x|H(3,l)| +W1 When Ρ2χ|Η(2,1)| ^{2 is} much smaller than Ρ3χ|Η(3,1)", ie SR^-4) is much larger than SINR(n + 4) The scheduling scheme that causes the network device to send to the UE at the nth time is too optimistic, thereby causing the reliability of the transmission signal to decrease at the n+4th time. The root cause is the interference source at the time of transmitting the uplink data signal and the time of transmitting the RS. The interference sources are inconsistent, so that the matching between the scheduling scheme and the channel quality at the time of signal transmission is low.

Table 1

At time n-4, the nth time and the n+4th time, the network measurement of the cell 1 transmits the tone to the UE1. Equipment SINR degree scheme

Send to the network device of cell 1

UE1 sends an RS receiving scheduling scheme

Uplink data signal

UE2 sends RS

Send to the network device of cell 3

UE3

Uplink data signal The method for transmitting a signal according to the present invention causes the network device to first perform a coarse scheduling, and then the UE1 transmits a measurement signal simultaneously with other interfering UEs that transmit an uplink data signal at a signal transmission time, and the network device further transmits a measurement signal according to the UE1. The adjustment adjustment information of the scheduling scheme may be determined, and the scheduling adjustment information is sent to the UE, and after receiving the uplink data signal according to the final scheduling scheme, the UE can enhance the reliability of the transmission signal.

Specifically, as shown in Table 2, before the first time, UE1 transmits an RS, and the network device of cell 1 determines the interference SINR of the uplink channel by measuring the RS transmitted by UE1.

At the first moment, the network device sends, to the UE, scheduling signaling that carries a first scheduling scheme, where the first scheduling scheme instructs the UE to send an uplink data signal in the first frequency band.

At the second moment, the UE sends a measurement signal to the network device in the first frequency band according to the first scheduling scheme; the network device determines scheduling adjustment information according to the received measurement signal. The scheduling signaling sent by the network device to the UE at the first moment first triggers the UE to send a measurement signal at the second moment, and the measurement signal is used to measure the quality of the uplink channel. As shown in Table 2, the network device can determine the uplink channel quality of UE1 according to the measurement signal sent by UE1 at the moment. Since the UE1 and the interfering UE transmit the uplink data signal using the same frequency band at both the second time and the fourth time, and the interfering UE that interferes with the signal transmitted by the UE1 at the fourth time, the UE is also sent to the UE1 at the second time. The measurement signal causes interference. Therefore, the quality of the uplink channel measured by the network device at the second moment is substantially the same as the quality of the uplink channel at the fourth moment.

At the third moment, the network device transmits scheduling adjustment information determined according to the measurement signal to the UE. When the network device finds that the first scheduling scheme is different from the channel quality information measured at the second moment, the scheduling adjustment information may be sent to the UE, and the UE determines, according to the scheduling adjustment information, the second scheduling used to send the uplink data signal. Program.

At a fourth moment, the UE determines a second scheduling scheme according to the scheduling adjustment information, where the first The frequency band transmits an uplink data signal to the network device. Since the network device detects that the interference of the signal sent by the UE1 on the first frequency band is the same as the second time, the second scheduling scheme determined by the UE according to the scheduling adjustment information sent by the network device can transmit the uplink with the fourth time. The uplink channel quality of the data signal is matched, thereby improving the reliability of the transmitted signal at that time.

Table 2

It should be understood that the embodiment of the present invention is only described by taking an application scenario shown in Table 2 as an example, but the present invention is not limited thereto.

It should also be understood that, when applying the transmission signal of the present invention, the ΤΉ to which the measurement signal belongs to all user equipments is determined and identical to the ΤΉ to which the uplink data signal belongs, and therefore, the uplink data signal sent by the UE1 is caused at the fourth moment. The interfered UE must transmit the measurement signal at the second moment, that is, it also interferes with the measurement signal sent by the UE1, thereby causing the quality of the uplink channel measured by the network device at the second moment and the uplink channel of the fourth moment. The quality is basically the same. From the perspective of SINR, it is assumed that the SINR obtained by estimating the uplink channel quality before the first time is SINR ( 0 ), the SINR measured at the second time is SINR ( 2 ), and the SINR at the fourth time is SINR ( 4), then even if SINR(0) differs greatly from SINR(4), SINR(2) is close to SINR(4), ie SINR { 2 ) = SINR ( 4 ). Since the final scheduling scheme of the present invention is determined according to SINR(2), it can be ensured that the final determined scheduling scheme is not much different from the channel quality at the time of final data transmission, thereby providing reliability of signal transmission.

Therefore, the method for transmitting a signal according to the embodiment of the present invention, by transmitting a measurement signal and determining scheduling adjustment information according to the measurement signal, thereby adjusting a final scheduling scheme, can improve channel quality matching between the scheduling scheme and the signal transmission moment, and improve The reliability of signal transmission can improve the efficiency of signal transmission.

In S1100, the network device may send a first scheduling scheme to the user equipment by using scheduling signaling or control signaling, where the scheduling signaling or control signaling is, for example, a PDCCH signal. The first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band, where the first scheduling scheme may include at least one of the following information: a frequency band carried by the UE sending signal, and a signal used by the UE Modulation scheme and/or coding rate, power/power adjustment amount used for transmitting signals, number of layers used for transmitting signals (for example, rank in LTE system), precoding matrix (Precoding Matrix) used for transmitting signals, Send the signal to the selected antenna port, etc. Wherein, the combination of the modulation mode and the coding rate may be referred to as a modulation coding scheme MCS.

In S1200, the network device receives, on the first frequency band, a measurement signal sent by the user equipment according to the first scheduling scheme. Optionally, the network device receives, according to the preset sequence, the measurement signal sent by the user equipment and modulated by the preset sequence on the first frequency band.

That is, in the embodiment of the present invention, at the second moment, the measurement signal sent by the UE to the network device is a measurement signal generated by the preset sequence modulation, and the preset sequence may be preset in the UE and the network device, or may be The network device determines the preset sequence in advance, and notifies the UE by signaling, so that the network device can obtain the channel quality information by detecting the sequence modulated measurement signal. Optionally, in the embodiment of the present invention, the preset sequence is a sequence with a lower peak to average power ratio (referred to as "PAPR"); or the preset sequence is characterized by: different networks The interference between the preset sequences sent by the device is similar to the interference between the data signals, so that the accuracy of the measurement can be improved.

In the embodiment of the present invention, optionally, the network device is configured to send an SRS according to the user equipment. And using the preset sequence with the same sequence, receiving the measurement signal sent by the user equipment and modulated by the preset sequence on the first frequency band. Therefore, the measurement signal and the SRS are modulated by using the same sequence, and the design of the SRS sequence can be reused, so that the UE and the network device need to store more sequences in advance, thereby reducing the storage space requirement of the user equipment and the network equipment.

In the embodiment of the present invention, optionally, as shown in FIG. 3, the method 100 for transmitting a signal further includes:

S1500, broadcasting, to the user equipment, the comb tooth information for transmitting the measurement signal, where the comb information is different from the comb tooth information allocated to the user equipment for transmitting the sounding reference signal SRS;

The receiving, by the user equipment, the measurement signal that is modulated by the preset sequence, in the first frequency band, includes:

S1210: Receive, according to the comb information and the preset sequence, the measurement signal that is sent by the user equipment and modulated by the preset sequence on the first frequency band.

In the LTE system, the network device sends the comb information of the SRS to each UE, so that the UE transmits the SRS according to the comb information. A physical resource block (called "PRB") includes 12 subcarriers in the frequency domain, and one 14 includes 14 symbols in the time domain, for example, 14 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing) , the tube is called "OFDM" symbol, the total length of one TTI is lms, the last one or two symbols are used to transmit SRS, in order to allow more UEs to transmit SRS in the symbol, only 2 for each UE One comb tooth information in the comb tooth information. For example, if the network device configuration UE1 uses comb information 1 and UE2 uses comb information 2, then the two UEs can simultaneously transmit SRS on the same PRB.

In the embodiment of the present invention, the network device may allocate a comb information to the UE, and use the measurement signal according to the embodiment of the present invention to transmit the SRS at the second time, and use the other comb information for the UE to transmit the SRS. Measure the interference between the signal and the SRS.

Moreover, in order to further ensure that the interference received by the UE transmitting the measurement signal at the second time coincides with the interference received at the fourth time, the measurement signals transmitted by the UEs from different cells at the second time need to use the same comb information. Therefore, the present invention can transmit the comb information to the UEs in the broadcast signaling without sending separate signaling to each UE, thereby reducing the signaling overhead of the system.

In S1300, the network device sends, to the user equipment, a scheduling tone determined according to the measurement signal. The entire information, the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal. Optionally, the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. Preferably, the scheduling adjustment information includes modulation mode information and coding rate information, that is, modulation and coding scheme information. Preferably, the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

Generally, the higher the transmission power used by the UE to transmit a signal, the higher the SINR of the received signal, that is, the larger the P1 corresponding to UE1 in the above SINR calculation formula; and vice versa. Therefore, the network device can determine the adjustment value of the UE transmit power according to the channel quality measured at the second moment, and send the scheduling adjustment information to the UE at the third moment. For example, four adjustment amounts are defined in advance, namely -3dB, -ldB, ldB, and 3dB, and the two adjustment amounts are represented by 2 bits, which are 00, 01, 10, and 11, respectively. The network device may send signaling to the UE at the third moment, and notify the UE that the adjustment information of the transmission power is 10, and the UE raises the transmission power to ldB when transmitting the uplink data signal at the fourth time.

On the other hand, the higher the coding rate used by the UE for channel coding, the higher the SINR required to obtain reliable transmission; and vice versa. Therefore, the network device can determine the adjustment value of the coding rate used by the UE for channel coding according to the channel quality measured at the second moment, and send the scheduling adjustment information to the UE at the third moment. The channel coding method includes a convolutional code, a Turbo code or a Low Density Parity Check Code ("LDPC"), and the coding rate is usually between 0 and 1. For example, the communication system includes 10 coding rates, which are 1/10, 2/10 1 respectively, and the network device can explicitly indicate the final coding rate value, for example, directly notify the UE that the final coding rate is 2/10; The adjustment rate indicating the coding rate, for example, the coding rate is 1 to 10 respectively, and the coding rate scheme included in the scheduling scheme sent by the network device to the UE at the first moment is 5/10, that is, the corresponding number is 5; The third time, the network device may send signaling to the UE to notify the UE of the adjustment amount of the coding rate, for example, the adjustment amount is -2, and the UE performs channel coding at the fourth time using the coding rate corresponding to the coding rate number 3. The encoding rate is 3/10.

On the other hand, the higher the order of the modulation scheme used by the UE for modulation, the higher the SINR required to obtain reliable transmission; and vice versa. Therefore, the network device can determine the adjustment information of the order of the modulation mode used by the UE according to the channel quality measured at the second time, and send the scheduling adjustment information to the UE at the third time. Modulation methods include Quadrature Phase Shift Keying ("QPSK"), 16 Quadrature Amplitude Modulation (16- Quadrature) Amplitude Modulation, called "16QAM", 64 Quadrature Amplitude Modulation ("64QAM"). For these modulation methods, one modulated symbol can carry 2, 4, 6 ... bits, respectively. The higher the order of the modulation mode means that the number of bits that a modulated symbol can carry is more. The specific implementation is similar to the coding rate, and is not described here.

It should be understood that, in the embodiment of the present invention, the scheduling adjustment information may include a scheduling scheme finally determined by the network device, and may also include an adjustment value or an adjustment amount of each scheduling information compared to the first scheduling scheme. Specifically, the transmit power information may include a final transmit power value, and may also include an adjustment value of the transmit power. The modulation mode information may include a final modulation mode, and may also include an adjustment value of the modulation mode. The coding rate information may include a final The coding rate may also include an adjustment value of the coding rate.

Preferably, the network device can also jointly adjust the coding rate and modulation mode. At the third moment, the network device may send the final determined MCS information to the UE. For example, in the LTE system, there are a total of 32 MCSs, and the network device indicates the final MCS value by 5 bits; or the network device may send the MCS to the UE. Adjust the information. For example, the scheduling signaling sent by the network device to the UE at the first moment includes using the MCS numbered 8 to perform channel coding and modulation on the uplink data. At the third moment, the network device determines the MCS according to the channel quality information obtained by the measurement signal. The adjustment order, for example, presets 2 bits to support 4 adjustment values, and 00, 01, 10, and 11 respectively indicate that the MCS adjustment values are -4, -2, 0, 2. If the UE receives the MCS adjustment value of 01 sent by the network device at this time, the MCS with the number 8-2=6 is used to encode and modulate the uplink data, and send it to the network device at the fourth time.

And, the transmission power and MCS of the UE can be jointly adjusted. For example, four adjustment amounts are predefined, which are (1) power adjustment -3dB, MCS reduction by 2 levels; (2) power adjustment -ldB, MCS is reduced by 1 level; (3) power adjustment ldB, MCS is increased by 1 level; 4) The power adjustment is 3dB, and the MCS is adjusted to 2 levels. These four adjustments can be expressed in 2 bits, which are 00, 01, 10, and 11, respectively. For example, the network device may send signaling to the UE at the third moment, and notify the UE that the transmission adjustment amount is 11, and the UE lowers the transmission power by 3 dB at the fourth time, and raises the MCS by three levels to send the uplink data signal. .

That is, in the embodiment of the present invention, the scheduling adjustment information may include a final determined modulation and coding scheme, and may also include an adjustment value of the modulation and coding scheme.

It should be understood that the scheduling scheme may further include a frequency band carried by the transmitted signal, and the transmitted The number of layers used for the signal, the precoding matrix used for the transmitted signal, the antenna port selected for the transmitted signal, and so on. Therefore, the scheduling adjustment information may also include the foregoing scheduling information, and the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, optionally, the network device sends the scheduling adjustment information to the user equipment in a multicast manner. It should be understood that the multicast mode includes a multicast mode, a broadcast mode, and the like.

Optionally, as shown in FIG. 4, the method 1300 for the network device to send the scheduling adjustment information to the user equipment in a multicast manner includes:

S1310. Send a scheduling adjustment group number and a sequence number in the group to the user equipment.

S1320: Adjust the group number and the sequence number in the group according to the scheduling, and send the scheduling adjustment information to the user equipment.

Specifically, the network device sends the scheduling adjustment group number to the UE in advance, and the intra-group serial number of the signaling of the bearer scheduling adjustment information of the UE in the scheduling adjustment group; at the third moment, the UE adjusts the group number detection according to the scheduling. The multicast signaling sent by the network device, if the signaling corresponding to the scheduling adjustment group sent by the network device is detected, obtains scheduling adjustment information sent by the network device to the UE according to the sequence number in the group.

For example, as shown in FIG. 5, the scheduling adjustment group number sent by the network device to UE1 and UE2 in advance is 3, and the intra-group serial number sent to UE1 is 1 and the intra-group serial number sent to UE2 is 3. Then, at the third moment, the UE1 detects the signaling sent by the network device according to the scheduling adjustment group number 3. If the scheduling adjustment group signaling is detected, the UE2 acquires the scheduling adjustment information sent by the network device to the UE1 according to the sequence number 1 in the group. . A similar operation is also adopted for UE2, and details are not described herein again.

The method for detecting the signaling sent by the network device according to the scheduling adjustment group number is not limited. In the LTE system, the detecting process may specifically include: after the network device determines the signaling bits sent to a group of UEs, the signaling bits are Integrate into a signaling packet and perform Cyclic Redundancy Check (CRC) encoding. It should be understood that using CRC encoding adds several redundant bits (for example, 16 bits) after the information bits. , the receiver is convenient to judge whether the signaling packet is correctly decoded according to the added bit; and the scheduling adjustment group number is combined with the added redundant bits, or merged, and then sent to the UE; the UE receives the signaling. After the packet, the scheduling adjustment group number can be used to determine whether the signaling packet corresponds to the group to which the UE belongs.

Since the number of bits of the scheduling adjustment information is small, the multicast mode is used for transmission, which can prevent the network device from transmitting multiple signaling packets, thereby reducing the signaling overhead of the system. For example, as shown in Figure 5, only one signaling packet is required to deliver scheduling adjustment information to eight UEs. It should be understood that when the same When scheduling scheduling adjustment information of more than 8 UEs, the network device may send multiple signaling packets. It is described above that the scheduling adjustment information of multiple UEs may be respectively carried in the signaling packet group, and the scheduling adjustment information of the UE is indicated by scheduling the adjustment group number and the intra-group serial number. The scheduling adjustment information of one or more UEs is carried in a signaling packet, which is indicated by information order.

The scheduling adjustment information of the UE.

Optionally, as shown in FIG. 6, the method 1300 for the network device to send the scheduling adjustment information to the user equipment in a multicast manner includes:

51330. Determine, according to the frequency band information of the first scheduling scheme, an information sequence for sending the scheduling adjustment information.

S 1340. The scheduling adjustment information is sent to the user equipment according to the information sequence.

That is, the network device determines, according to the frequency band information used by the UE to transmit the uplink data signal at the first moment, the information order of the signaling for transmitting the bearer scheduling adjustment information to the UE, and in the signaling packet sent to the UE at the third moment. The corresponding area sends the signaling to the UE. Correspondingly, the UE determines the order of the information according to the frequency band information received at the first time, and obtains scheduling adjustment information sent by the network device to the UE from the signaling packets received at the third time according to the information order.

In the embodiment of the present invention, optionally, as shown in FIG. 7, the network device determines the order of information for sending the scheduling adjustment information, including:

51331. The network device determines, by the network device, a resource block number of one PRB of the at least one physical resource block PRB included in the frequency band information as the information order. Preferably, the network device determines the resource block number of the first PRB of the at least one PRB included in the band information as the information order.

For example, at the first moment, the network device instructs the UE1 to send a signal on the PRBs numbered 1 to 3, instructing the UE2 to transmit a signal on the PRBs numbered 5 to 9, the network device may map the signaling sent to the UE1 to In the first bit of the signaling packet, the signaling sent to the UE2 is mapped to the fifth bit in the signaling packet, that is, the first PRB in the frequency band used by the UE to transmit the uplink data signal at the first moment. The number is determined as the order of information for mapping signaling.

Optionally, as shown in FIG. 7, the network device determines the order of information for sending the scheduling adjustment information, including:

51332. Determine, by using the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information. Preferably, the network device determines, as the information order, a resource block number of the first PRB in the at least one PRB included in the frequency band information, and a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information. In the foregoing embodiment, if there are N (N is a natural number) PRBs in the system, the signaling packet carrying the scheduling adjustment information needs to include at least N bits, so the signaling overhead required when the number of PRBs is large is large. In order to reduce the signaling overhead of the system, optionally, the network device may determine the information order Index of the user equipment according to the following equation (3):

Index = I (0) mod N _sig ( 3 ) where Index represents the information order of the signaling bits transmitted to the UE in the signaling packet; I _PRB (0) represents all the network devices assigned to the UE at the first moment PRB number of the first PRB in the PRB; N _sie represents the number of signaling bits possessed by one signaling packet carrying scheduling adjustment information of at least one UE; mod represents a modulo operation. By this method, the size of the signaling packet can be limited to N _slg bits. For different I _PRB (0), the same index problem will occur, that is, the Index collision causes multiple UEs to read the information bits corresponding to the same sequence number, which can be avoided by selecting a reasonable N _siB and adopting a scheduling method. For example, for a UE that is scheduled in the post, the network device avoids the same index of the index as the index of the previously scheduled UE, and determines that the first PRB scheduled for the UE sends the scheduling adjustment information to the UE by using the foregoing method, which can reduce the system information. The overhead is also required, and the network device does not need to notify the user equipment of the scheduling adjustment group number and the like in advance.

S1333: The result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number is determined as the information order.

For example, the network device can determine the information order of the user equipment according to the following equation (4):

Index = (I _PRB (0) + A) mod N _sig ( 4 ) where Index represents the information order of signaling bits sent to a UE in a signaling packet; I _PRB (0) indicates that the network device is at the first moment The PRB number of the first PRB in all the PRBs allocated to the UE; N _S1S represents the number of signaling bits of one signaling packet carrying the scheduling adjustment information of at least one UE; mod represents a modulo operation; A is a random number The random number may be different with time, or may be different for different UEs. Thereby, the probability of collision of information order can be reduced.

In S1400, the network device receives, on the first frequency band, the uplink data signal sent by the user equipment according to the second scheduling scheme. In the embodiment of the present invention, when the scheduling adjustment information is not included Including the number of layers used by the user equipment to transmit signals, the precoding matrix or the selected antenna port, optionally, the network device has the same number of layers, precoding matrix or antenna port on the first frequency band as receiving the measurement signal. Receiving the uplink data signal sent by the user equipment. That is, the user equipment transmits the measurement signal and the uplink data signal with the same number of layers, precoding matrix or antenna port.

In the embodiment of the present invention, after detecting the scheduling adjustment information sent by the network device, the user equipment may send an uplink data signal to the network device in the first frequency band according to the second scheduling scheme determined by the scheduling adjustment information. The device needs to receive the uplink data signal according to the second scheduling scheme. When the user equipment fails to detect the scheduling adjustment information, the user equipment may use the first scheduling scheme to send an uplink data signal to the network device in the first frequency band. The device needs to receive the uplink data signal according to the first scheduling scheme.

Therefore, in the embodiment of the present invention, optionally, as shown in FIG. 8, the method 1000 for transmitting a signal further includes:

S1600. Decode the received uplink data signal according to the first scheduling scheme and/or the second scheduling scheme.

Preferably, the network device decodes the received uplink data signal, including: when the network device decodes the received uplink data signal according to the second scheduling scheme, the uplink is received according to the first scheduling scheme. The data signal is decoded.

The user equipment does not necessarily detect the scheduling adjustment information sent by the network device. Therefore, the foregoing method can ensure that the network device matches the scheduling scheme used by the user equipment, thereby ensuring the reliability of signal transmission.

In the embodiment of the present invention, the first time to which the first scheduling scheme belongs, the second time to which the measurement signal belongs, the third time to which the scheduling adjustment information belongs, and the uplink data signal are received. The fourth moment, the first moment and the second moment The time interval between the second time and the third time, and between the third time and the fourth time is equal.

Preferably, the time interval between the first time and the second time, between the second time and the third time, and between the third time and the fourth time is four. That is, if the first moment is the ηth ΤΉ, the second moment is the η+4 ΤΉ, the third moment is the η+8 ΤΤΙ, and the fourth moment is the η+12 ΤΤΙ.

Here, we need to explain the "time,". It should be understood that, in a communication system, the time dimension is divided into units of a certain length. For example, in the LTE system, the time dimension is divided in units of ,, 1 The length of time is lms. And because of the delay of transmission, the network device and the user equipment will divide the same absolute time differently. For example, if the network device sends a certain TTI, the UE will delay receiving, so the two understand The time indicated by the present invention indicates the number of the time zone in which an operation is located, that is, the number of the ΤΉ.

For example, the network device sends the scheduling signaling that carries the first scheduling scheme to the UE at the first moment, and the UE sends the measurement signal to the network device at the second moment, and only needs the TTI to which the network device sends the scheduling signaling to the UE. The difference between the TTI and the TTI to which the UE sends the measurement signal to the network device may be 4 TTIs, and the UE does not strictly require the network device to send the measurement to the network device 4 ms after the start/end of the scheduling signaling is sent to the UE. signal. As shown in Figure 9, the network equipment is on ΤΉ, numbered 0 and 8, and sends scheduling signaling to the UE only on the first few symbols of the ΤΉ.

In the embodiment of the present invention, the first time to which the first scheduling scheme belongs, the second time to which the measurement signal belongs, the third time to which the scheduling adjustment information belongs, and the uplink data signal are received. At the fourth moment, the first time and the fourth time are separated by four turns. Preferably, a transmission time interval ΤΉ is separated between the first time and the second time and between the third time and the fourth time, and the second time and the third time are separated by two ΤΤΙ.

In the above embodiment, the time intervals between the respective times are equal and are all four turns. After the network device sends the control signaling to the UE for the first time, it can not receive all the uplink signals sent by the UE until the 12th time. In the LTE system, this process only needs to delay 4 ΤΉ, so the traditional LTE system is quite different from the above solution. If a UE in a conventional LTE system and a UE according to the present invention exist in a system, the network device needs to be processed according to different processing mechanisms, thereby bringing about a large complexity. Therefore, in this embodiment, the time interval between the first time and the fourth time can be kept at 4 ΤΉ, which enables all UEs to have the same timing on receiving scheduling and transmitting data, and avoiding system operation. Increased complexity. However, this scheme requires that the time relationship between the network device scheduling and the response of the UE is less than two, which has high requirements on the processing capabilities of the network device and the UE.

Therefore, preferably, if the first time is ΤΉ numbered n, then the second time is ΤΉ numbered n+1, the third time is ΤΉ numbered n+3, and the fourth time is numbered TTI of n+4. As shown in FIG. 10, the network device sends the scheduling signaling carrying the first scheduling scheme to the UE in the first symbol of the number η, and the UE sends the measurement signal to the network device after the number n+1; The first few symbols of the ΤΉ number n+3 (usually less than half TTI), the network device sends scheduling adjustment information to the UE; in the TTI numbered n+4, the UE sends an uplink data signal to the network device.

With the above method, it is possible to make a certain time interval between any two adjacent processes, for example, at least more than half a ΤΉ, so that it is convenient to reserve time for the UE or the network device to process the received signal, thereby improving the method. Achievability.

In the embodiment of the present invention, optionally, the network device receives the measurement signal sent by the user equipment according to the first scheduling scheme on the first frequency band, and includes:

The network device receives the measurement signal transmitted by the user equipment on the last or last two symbols of the second time.

In the LTE system, the network device may send SRS configuration information to the UE, and configured to configure parameters of the SRS sent by the UE. In the present invention, the measurement signal sent by the UE at the second moment is different from the SRS in that: the frequency band used by the UE to transmit the measurement signal at the second time is the same as the frequency band used by the signal transmitted at the fourth time, so that the SINR is satisfied. 2) is approximately equal to SINR (4); and SRS does not have such characteristics.

In the LTE system, the SRS is transmitted on the last one or two symbols of a TTI; in the present invention, at the second moment, the UE may also transmit the measurement for measurement on the last one or two symbols of the UI. Signal, which avoids interference with other symbols and is compatible. For example, in the LTE system, the network device may send a configuration signal to the UE, and configure the UE to not send a physical downlink shared channel (Physical Downlink Shared Channel) ("PUSCH") signal on the last one or two symbols of a TTI. To avoid interference with SRS. Therefore, it is also possible to make the PUSCH signal transmitted by the UE supporting only the LTE system not related to the present invention. The introduced measurement signals interfere with each other.

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

1 to 10, a method for transmitting an uplink data signal according to an embodiment of the present invention is described in detail from the perspective of a network device. Hereinafter, an embodiment according to the present invention will be described from the perspective of a user equipment with reference to FIG. 11 to FIG. A method of transmitting an upstream data signal.

Figure 11 shows a schematic flow diagram of a method 2000 of transmitting a signal in accordance with an embodiment of the present invention. As shown in FIG. 11, the method 2000 includes:

S2100: Receive a first scheduling scheme sent by the network device, where the first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band.

S2200: Send, according to the first scheduling scheme, a measurement signal to the network device on the first frequency band.

S2300, detecting scheduling adjustment information that is sent by the network device according to the measurement signal, and determining, according to a result of detecting the scheduling adjustment information, a second scheduling scheme for sending the uplink data signal;

S2400. Send, according to the second scheduling scheme, the uplink data signal to the network device on the first frequency band.

In order to improve the reliability of the signal transmission, the user equipment may send the measurement signal to the network device on the first frequency band according to the first scheduling scheme from the network device; and detect the scheduling determined by the network device according to the measurement signal. Adjusting the result of the information, determining a second scheduling scheme for transmitting the uplink data signal, so that the user equipment sends the uplink data signal to the network device on the first frequency band according to the second scheduling scheme, thereby enabling the user equipment The interference received by transmitting the measurement signal is substantially the same as the interference quality of the transmission of the uplink data signal, thereby improving the reliability of signal transmission.

In S2200, optionally, the user equipment sends the measurement signal to the network device on the first frequency band, including:

The user equipment transmits the measurement signal modulated by the preset sequence to the network device on the first frequency band according to the first scheduling scheme.

Specifically, as shown in FIG. 12, the method 2200 for the user equipment to send the measurement signal modulated by the preset sequence to the network device on the first frequency band includes:

S2210: Send, according to the first scheduling scheme, the measurement signal modulated by the preset sequence to the network device on the first frequency band, where the sequence group to which the preset sequence belongs and the sequence used by the transmission sounding reference signal SRS belong to The sequence group is the same.

The measurement signal and the SRS are modulated by using the sequence in the same sequence group, and the design of the SRS sequence can be reused, so that the UE and the network device need to store more sequences in advance, thereby reducing the storage space requirement of the user equipment and the network equipment. In addition, in the embodiment of the present invention, the preset sequence is a sequence with a lower peak-to-average ratio, thereby facilitating reducing the PAPR value of the measurement signal; or the preset sequence is characterized by: sending by different network devices The interference between the preset sequences is similar to the interference between the data signals, thereby improving the accuracy of the measurement.

Optionally, as shown in FIG. 12, the method 2200 for the user equipment to send the measurement signal modulated by the preset sequence to the network device on the first frequency band includes:

S2220: Send, according to the first scheduling scheme and the comb information of the network device broadcast notification, the measurement signal modulated by the preset sequence to the network device on the first frequency band.

In the embodiment of the invention, the comb information is different from the comb information allocated to the user equipment for transmitting the sounding reference signal SRS. Therefore, the network device can allocate a comb information to the UE for transmitting the measurement signal according to the embodiment of the present invention at the second time, and using the other comb information for the UE to transmit the SRS, so as to avoid the measurement signal and the SRS. Interference.

On the other hand, in the embodiment of the present invention, each UE receives the comb information generated by the network device by using the broadcast signaling, so that the network device can prevent the network device from sending separate signaling to each UE, thereby reducing the signaling overhead of the system. .

Therefore, the method for transmitting a signal according to the embodiment of the present invention, by transmitting a measurement signal and determining scheduling adjustment information according to the measurement signal, thereby adjusting a final scheduling scheme, can improve channel quality matching between the scheduling scheme and the signal transmission moment, and improve Reliability of signal transmission, so that Improve the efficiency of signal transmission.

In S2300, the user equipment detects the scheduling adjustment information that is sent by the network device according to the measurement signal, and determines a second scheduling scheme for sending the uplink data signal according to the result of detecting the scheduling adjustment information.

Optionally, the scheduling adjustment information includes at least one of transmission power information, modulation mode information, and coding rate information. Preferably, the scheduling adjustment information includes modulation mode information and coding rate information, that is, a modulation and coding scheme. Preferably, the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

It should be understood that the scheduling scheme may further include a frequency band carried by the transmitted signal, a number of layers used for the transmitted signal, a precoding matrix used for the transmitted signal, an antenna port selected for transmitting the signal, and the like. Therefore, the scheduling adjustment information may also include the above scheduling information, and the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, the network device sends the scheduling adjustment information to the user equipment in a multicast manner, thereby reducing system signaling overhead. It should be understood that the multicast mode includes a multicast mode, a broadcast mode, and the like.

Specifically, as shown in FIG. 13, the method 2300 for detecting, by the user equipment, the scheduling adjustment information that is determined by the network device according to the measurement signal, includes:

S2310: Receive a scheduling adjustment group number and a sequence number in the group sent by the network device.

S2320: Adjust the group ID and the sequence number in the group according to the scheduling, and detect the scheduling adjustment information sent by the network device.

That is, the network device sends the scheduling adjustment group number to the UE in advance, and the intra-group serial number of the signaling of the bearer scheduling adjustment information of the UE in the scheduling adjustment group; the UE detects the multicast information sent by the network device according to the scheduling adjustment group number. If the signaling corresponding to the scheduling adjustment group sent by the network device is detected, the scheduling adjustment information sent by the network device to the UE is obtained according to the sequence number in the group.

In the embodiment of the present invention, as shown in FIG. 14, the method 2300 for detecting, by the user equipment, the scheduling adjustment information that is determined by the network device according to the measurement signal, includes:

S2330. Determine, according to the frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information.

S2340: Detect, according to the information sequence, the scheduling adjustment information sent by the network device.

Therefore, in the embodiment of the present invention, the scheduling adjustment information of multiple UEs may be respectively carried in the signaling packet group, and the scheduling adjustment information of the UE is indicated by scheduling the adjustment group number and the intra-group serial number. The scheduling adjustment information of one or more UEs may also be carried in one signaling packet, and the scheduling adjustment information of the UE is indicated by the information order, thereby reducing the overhead of system signaling.

In the embodiment of the present invention, optionally, as shown in FIG. 15, the method 2330 for determining, by the network device, the information sequence of sending the scheduling adjustment information includes:

S2331: The user equipment determines the resource block number of one PRB in the at least one physical resource block PRB included in the frequency band information as the information order; or

52332, the user equipment determines, by using the resource block number, a result of modulo the bit number of the signaling packet carrying the scheduling adjustment information as the information order; or

52333. The user equipment determines, by using the sum of the resource block number and the random number, a result of modulo the number of bits of the signaling packet as the information order.

In the embodiment of the present invention, optionally, the user equipment determines a second scheduling scheme for sending the uplink data signal, including: when the scheduling adjustment information sent by the network device is not detected, the first scheduling scheme is used. Determined as the second scheduling scheme.

That is, in the embodiment of the present invention, after detecting the scheduling adjustment information sent by the network device, the user equipment may send the uplink data signal to the network device in the first frequency band according to the second scheduling scheme determined by the scheduling adjustment information. The network device needs to receive the uplink data signal according to the second scheduling scheme. When the user equipment fails to detect the scheduling adjustment information, the user equipment may use the first scheduling scheme to send the uplink data signal to the network device in the first frequency band. The network device needs to receive the uplink data signal according to the first scheduling scheme.

In 2400, the user equipment sends the uplink data signal to the network device on the first frequency band according to the second scheduling scheme.

Optionally, as shown in FIG. 16, the method 2400 for the user equipment to send the uplink data signal includes:

S2410: When the scheduling adjustment information does not include the sending power, according to the second scheduling scheme, The uplink data signal is transmitted to the network device on the first frequency band at the same transmission power as the transmission of the measurement signal.

Optionally, as shown in FIG. 16, the method 2400 includes:

S2420: Send, according to the second scheduling scheme, the uplink data signal to the network device on the first frequency band by using the same number of layers, a precoding matrix, or an antenna port as the measurement signal.

In the embodiment of the present invention, the first time to which the first scheduling scheme belongs, the second time to which the measurement signal belongs, the third time to which the scheduling adjustment information belongs, and the uplink data signal are sent. At a fourth time, the time interval between the first time and the second time, between the second time and the third time, and between the third time and the fourth time is equal.

Preferably, the time interval between the first time and the second time, between the second time and the third time, and between the third time and the fourth time is four. That is, if the first time is the nth ΤΉ, the second time is the n+4th ΤΉ, the third time is the n+8th TTI, and the fourth time is the n+12th TTI.

Optionally, the first time to which the first scheduling scheme belongs, the second time to which the measurement signal is sent, the third time to which the scheduling adjustment information belongs, and the fourth time to which the uplink data signal belongs are sent, A transmission time interval 间隔 between the first time and the second time and between the third time and the fourth time, and two intervals between the second time and the third time.

Preferably, if the first time is ΤΤΙ numbered η, the second time is ΤΤΙ numbered η+1, the third time is ΤΉ numbered η+3, and the fourth time is number n+ 4 TTI. As shown in FIG. 10, the network device sends the scheduling signaling carrying the first scheduling scheme to the UE in the first symbol of the number η, and the UE sends the measurement signal to the network device in the TTI numbered n+1; The number of symbols preceding the η+3 is usually less than half a ΤΉ, and the network device sends scheduling adjustment information to the UE. In the TTI numbered n+4, the UE sends an uplink data signal to the network device.

Using the above method, it is possible to make a certain time between any two adjacent processes The interval, for example, is at least greater than half a ΤΉ, thereby facilitating time reserved for the UE or network device to process the received signal, thereby improving the achievability of the method.

Optionally, the user equipment sends the measurement signal to the network device on the first frequency band, including: the user equipment is on the last or last two symbols of the second moment, according to the first scheduling scheme. The measurement signal is sent to the network device on a frequency band.

That is, the specific time period in which the user equipment sends the uplink data signal to the network device is the same as the specific time period in which the SRS signal is transmitted, thereby avoiding interference with other symbols and being compatible.

It should be understood that the interaction between the user equipment and the network device described on the user equipment side and related features, functions, and the like are corresponding to the description on the network equipment side, and are not described herein again.

With reference to FIG. 1 to FIG. 16 , a method for transmitting an uplink data signal according to an embodiment of the present invention is described in detail from the perspective of a network device and a user equipment, respectively. Referring to FIG. 17 to FIG. 28 , respectively, from the network device and the user equipment. The method of transmitting a downlink data signal according to an embodiment of the present invention is described.

Figure 17 shows a schematic flow diagram of a method 3000 of transmitting a signal in accordance with an embodiment of the present invention. As shown in FIG. 17, the method 3000 includes:

S3100: Send a first scheduling scheme to the user equipment, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band.

S3200: Send a measurement signal to the user equipment on the first frequency band.

The S3300 receives the reference scheduling information that is sent by the user equipment according to the measurement signal, and determines scheduling adjustment information according to the reference scheduling information, where the scheduling adjustment information is used to determine a second scheduling scheme for sending the downlink data signal to the user equipment. ;

S3400: Send the scheduling adjustment information to the user equipment.

S3500, according to the second scheduling scheme, sending the next to the user equipment on the first frequency band Line data signal.

In the current communication system, if the network device sends scheduling signaling to the UE in the first few symbols of the number n, the other symbols in the TTI send data signals to the UE, such as the PDSCH signal in the LTE system; The UE first obtains scheduling signaling sent by the network device from the first few symbols of the TTI, and then acquires the data signal from other symbols according to the scheduling signaling. The scheduling scheme determined by the network device for the TTI numbered n is determined according to the channel quality fed back by the UE before the network. Specifically, the network device periodically sends the CSI-RS to the UE, and the UE according to the received CSI- The RS determines the channel quality and feeds back to the network device, for example, through the physical uplink control channel (Physical Uplink Control Channel, called "PUCCH") signal in the LTE system, and finally determines by the network device according to the channel quality fed back by the UE. Downstream scheduling scheme.

Similar to the uplink, there is a similar problem, that is, the channel quality corresponding to the time when the UE measures the downlink channel quality is significantly different from the channel quality corresponding to the downlink data signal transmission time. Specifically, for example, the downlink signal sent by the network device corresponding to the cell 1 to the UE1 is examined. If the UE1 measures the downlink channel quality, the network device corresponding to the cell 2 transmits the downlink signal in the first frequency band (interfering with the downlink signal received by the UE1) The network device corresponding to the cell 3 does not transmit the downlink signal in the first frequency band (the UE1 does not interfere with receiving the downlink signal); and when the UE1 receives the downlink data signal in the first frequency band, the network device corresponding to the cell 3 is The first frequency band transmits a downlink signal (which causes interference to the UE1 to receive the downlink signal;), and the network device corresponding to the cell 2 does not transmit the downlink signal in the first frequency band (the UE1 does not interfere with receiving the downlink signal). If the radio channel of the network device corresponding to the cell 1 and the cell 3 is better, the interference caused by the network device corresponding to the cell 3 to the UE1 is greater than the interference caused by the network device corresponding to the cell 2, which causes: The scheduling scheme determined by UE1 is too optimistic. Using this scheduling scheme to transmit downlink data signals will reduce the reliability of transmission.

The method for transmitting signals of the present invention causes the network device to first perform a coarse scheduling and send a measurement And measuring the adjustment information of the scheduling scheme according to the reference scheduling information of the measurement signal fed back by the UE, and then sending the scheduling adjustment information to the UE, so that the UE receives the technical downlink data signal according to the final scheduling scheme after receiving the UE. , can enhance the reliability of the transmitted signal.

Specifically, as shown in Table 3, before the first time, the network device sends an RS, and the user equipment determines the interference SINR of the downlink channel by measuring the RS sent by the network device.

At the first moment, the network device sends the scheduling signaling that carries the first scheduling scheme to the UE, and instructs the UE to receive the downlink data signal sent by the network device in the first frequency band. The first scheduling scheme is a coarse scheduling scheme.

At the second moment, the network device sends a measurement signal to the UE in the first frequency band; the UE receives the measurement signal from the network device in the first frequency band according to the first scheduling scheme. The measurement signal sent by the network device to the UE at the second moment is used by the UE to measure the quality of the downlink channel. As shown in Table 3, since the network device corresponding to the cell 1 and the network device that causes the interference use the same frequency band to transmit the downlink signal at the second time and the fifth time, the channel quality information measured by the UE1 at the second time is The fifth moment is basically the same.

The UE measures the received measurement signal, and determines the suggested reference scheduling information according to the measurement result, and sends the suggested reference scheduling information to the network device. When the UE finds that the coarse scheduling scheme is different from the downlink channel quality measured at the second moment, the recommended reference scheduling information may be fed back to the network device.

At the third moment, the network device determines the final scheduling adjustment information according to the received reference scheduling information, and sends scheduling adjustment information to the UE at the fourth moment. That is, the final scheduling scheme is determined by the network device.

At the fifth moment, the network device sends a downlink data signal to the UE according to the scheduling adjustment information. Since the network device that interferes with the receiving of the downlink data signal by the UE also sends the measurement signal at the second moment, the interference level received by the UE at the second moment and the fifth moment is similar, thereby improving the reliability of the signal transmission. Sex.

table 3

receive

Sending to UE1 to UE1 to UE1 to UE1 UE1

The transmission of the cell 1 is transmitted, the transmission is sent, the transmission is sent by the RS, and the transmission is sent.

Network equipment, scheduling, adjustment, line data, scheduling

Scheme information signal information

Community 2

Send RS

Internet equipment

To UE3 to UE3

Sending under the transmission of cell 3

Network equipment, line data, signal measurement, small reception, transmission, reception, reception, reception, reception, measurement

UE1 area 1 a scheduling test scheduling adjustment line data

SINR scheme information information signal Therefore, the method for transmitting a signal according to the embodiment of the present invention can improve the channel quality of the scheduling scheme and the signal transmission time by transmitting the measurement signal and determining the scheduling adjustment information according to the measurement signal, thereby adjusting the final scheduling scheme. The matching improves the reliability of signal transmission, thereby improving the efficiency of signal transmission.

In S3100, the network device may send a first scheduling scheme to the user equipment by using scheduling signaling or control signaling, where the scheduling signaling or control signaling is, for example, a PDCCH signal. The first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band, where the first scheduling scheme may include at least one of the following information: a frequency band carried by the UE sending signal, and a signal used by the UE Modulation scheme and/or coding rate, power/power adjustment amount used for transmitting signals, number of layers used for transmitting signals (for example, rank in LTE system), precoding matrix (Precoding Matrix) used for transmitting signals, Send the signal to the selected antenna port, etc. Wherein, the combination of the modulation mode and the coding rate may be referred to as a modulation coding scheme MCS.

In S3200, the network device sends a measurement signal to the user equipment on the first frequency band. Optionally, the network device sends the measurement signal modulated by the preset sequence to the user equipment on the first frequency band. Optionally, in the embodiment of the present invention, the preset sequence is a sequence with a lower peak to average power ratio (referred to as “PAPR”), thereby facilitating the reduction of the sequence. The PAPR value of the measurement signal; or the preset sequence is characterized in that: interference between preset sequences transmitted by different network devices is similar to interference between data signals, thereby improving measurement accuracy.

Preferably, the network device sends the measurement signal modulated by the preset sequence to the user equipment on the first frequency band, where the sequence group to which the preset sequence belongs and the sequence used by the transmission channel state information reference signal CSI-RS belong to The sequence group is the same. Therefore, the measurement signal and the CSI-RS are modulated by using the same sequence, and the design of the CSI-RS sequence can be reused, so that the UE and the network device need to store more sequences in advance, thereby reducing the storage of the user equipment and the network equipment. Space requirements.

In the embodiment of the present invention, optionally, as shown in FIG. 18, the method 100 for transmitting a signal further includes:

S3600: Broadcasting the configuration information for transmitting the measurement signal to the user equipment, where the measurement signal that is modulated by the preset sequence is sent to the user equipment on the first frequency band, and the method includes:

S3210: Send, according to the configuration information, the measurement signal modulated by the preset sequence to the user equipment on the first frequency band.

Specifically, the configuration information of the measurement signal modulated by the preset sequence includes, for example, a specific time and/or a specific frequency of the measurement signal in a frame, such as a symbol number and/or a subcarrier number. In order to ensure that the interference received by the UE at the second moment is consistent with the fifth time, the network device corresponding to the different cell needs to use the same time and frequency for transmitting the measurement signal, so the present invention can place the configuration information on the broadcast signal. The order is passed to the UE, thereby reducing the overhead of system signaling.

In S3300, the network device receives the reference scheduling information that is sent by the user equipment and is determined according to the measurement signal, and determines scheduling adjustment information according to the reference scheduling information, where the scheduling adjustment information is used to determine that the downlink data signal is sent to the user equipment. The second scheduling scheme.

Optionally, the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. Preferably, the scheduling adjustment information includes modulation mode information and coding Rate information, ie modulation coding scheme. Preferably, the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

In S3400, optionally, the network device sends the scheduling adjustment information to the user equipment in a multicast manner. It should be understood that the multicast mode includes a multicast mode, a broadcast mode, and the like.

Optionally, as shown in FIG. 19, the method 3400 for the network device to send the scheduling adjustment information to the user equipment includes:

S3410: Send, to the user equipment, a scheduling adjustment group number and a sequence number in the group;

S3420: Adjust the group number and the sequence number in the group according to the scheduling, and send the scheduling adjustment information to the user equipment.

Specifically, the network device sends the scheduling adjustment group number and the intra-group serial number of the signaling of the UE to the UE in advance; the UE detects the multicast signaling sent by the network device according to the scheduling adjustment group number, if the network device is detected. After the signaling corresponding to the scheduling adjustment group is sent, the scheduling adjustment information sent by the network device to the UE is obtained according to the scheduling adjustment group number.

Since the number of bits of the scheduling adjustment information is small, the multicast mode is used for transmission, which can avoid the network device from transmitting multiple signaling packets, thereby reducing the signaling overhead of the system. For example, as shown in Figure 5, only one signaling packet is required to deliver scheduling adjustment information to eight UEs. It should be understood that when scheduling adjustment information of more than 8 UEs is simultaneously scheduled, the network device may transmit a plurality of signaling packets.

It is described above that the scheduling adjustment information of multiple UEs may be respectively carried in the signaling packet group, and the scheduling adjustment information of the UE is indicated by scheduling the adjustment group number and the intra-group serial number. The scheduling adjustment information of one or more UEs is carried in a signaling packet, and the scheduling adjustment information of the UE is indicated by the information order.

Optionally, as shown in FIG. 20, the method 3400 for the network device to send the scheduling adjustment information to the user equipment includes:

S3430. Determine, according to the frequency band information of the first scheduling scheme, an information sequence for sending the scheduling adjustment information.

S3440: Send the scheduling adjustment information to the user equipment according to the information sequence.

That is, the network device indicates the frequency band used by the UE to transmit the uplink data signal according to the first moment. The information determines an information order of signaling that carries the scheduling adjustment information to the UE, and sends the signaling to the UE in a corresponding area in the signaling packet sent to the UE. Correspondingly, the UE determines the order of the information according to the frequency band information received at the first time, and obtains scheduling adjustment information sent by the network device to the UE from the received signaling packet according to the information order.

In the embodiment of the present invention, optionally, as shown in FIG. 21, the method 3430 for determining, by the network device, the order of the information includes:

53431, determining a resource block number of one PRB in the at least one physical resource block PRB included in the frequency band information as the information order; or

53432, determining, by using the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

53433. The result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number is determined as the information order.

In S3500, the network device sends the downlink data signal to the user equipment on the first frequency band according to the second scheduling scheme. Optionally, as shown in FIG. 22, the method 3500 for transmitting, by the network device, the downlink data signal includes:

S3510: When the scheduling adjustment information does not include the transmission power, according to the second scheduling scheme, the downlink data signal is sent to the user equipment in the first frequency band by using the same transmission power as the measurement signal.

Optionally, as shown in FIG. 22, the method 3500 includes:

S3520. According to the second scheduling scheme, send the downlink data signal to the user equipment on the first frequency band by using the same number of layers, a precoding matrix, or an antenna port as the measurement signal.

In the embodiment of the present invention, optionally, the time when the first scheduling solution is sent is the same TTI as the time when the measurement signal is sent; the time when the scheduling adjustment information is sent belongs to the same TTI as the time when the downlink data signal is sent. .

In the current communication system, the time when the network device sends the scheduling signaling to the UE is the same as the time when the downlink data signal is sent to the UE. Therefore, if the method is also used by the present invention, the timing in the current communication system can be continued, and the UE or the network device needs to implement multiple sets. Preface.

In the embodiment of the present invention, optionally, the sending the first scheduling scheme or sending the first moment to which the measurement signal belongs, receiving the second moment to which the reference scheduling information belongs, sending the scheduling adjustment information, or sending the downlink data The third time to which the signal belongs is equal to the time interval between the first time and the second time and between the second time and the third time.

Preferably, two or four transmission time intervals are separated between the first time and the second time

TTI, the second moment is separated from the third moment by two or four TTIs.

For example, as shown in FIG. 23, the network device sends a first scheduling scheme to the UE on the first few symbols of the number 0, and on the first few symbols of the last number of the number 0, on the first frequency band. Sending a measurement signal to the UE; in the frame number 4, the UE sends the reference scheduling information determined according to the measurement signal to the network device; on the first few symbols of the number 8, the network device sends the reference scheduling information to the UE according to the reference Determining the scheduling adjustment information, and transmitting downlink data signals to the UE on the first frequency band according to the second scheduling scheme on the last few symbols of the UI.

It should be understood that, for the transmission of the downlink data signal, the interaction between the network device and the user equipment described by the network device side and related characteristics, functions, and the like are similar to the description about the transmission of the uplink data signal. Narration.

With reference to FIG. 17 to FIG. 23, a method for transmitting a downlink data signal according to an embodiment of the present invention is described in detail from the perspective of a network device. Hereinafter, an embodiment according to the present invention will be described from the perspective of a user equipment with reference to FIG. 24 to FIG. A method of transmitting a downlink data signal.

Figure 24 shows a schematic flow diagram of a method 4000 of transmitting a signal in accordance with an embodiment of the present invention. As shown in Figure 24, the method 4000 includes:

S4100: Receive a first scheduling scheme sent by the network device, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band.

S4200, according to the first scheduling scheme, receiving, by using the network device, the first frequency band Measuring signal

S4300, sending reference scheduling information determined according to the measurement signal to the network device; S4400, detecting scheduling adjustment information that is sent by the network device according to the reference scheduling information, where the scheduling adjustment information is used to determine that the downlink data signal is received. Second scheduling scheme;

S4500: Receive, according to the second scheduling scheme, the downlink data signal sent by the network device on the first frequency band.

In S4200, the user equipment receives the measurement signal sent by the network device on the first frequency band according to the first scheduling scheme. Optionally, the user equipment receives, according to the preset sequence, the measurement signal sent by the network device and modulated by the preset sequence on the first frequency band.

That is, in the embodiment of the present invention, the measurement signal sent by the network device to the UE is a measurement signal generated by the preset sequence modulation, and the preset sequence may be preset in the UE and the network device, or may be determined in advance by the network device. Presetting the sequence and signaling the UE, so that the network device can obtain channel quality information by detecting the sequence modulated measurement signal. Optionally, in the embodiment of the present invention, the preset sequence is a sequence with a lower peak to average power ratio (referred to as "PAPR"), thereby facilitating reducing the PAPR value of the measurement signal; Or the preset sequence is characterized in that: interference between preset sequences sent by different network devices is similar to interference between data signals, thereby improving measurement accuracy.

In the embodiment of the present invention, as shown in FIG. 25, optionally, the method 4200 for the user equipment to receive the measurement signal includes:

S4210: Receive, according to the preset sequence group, the preset sequence that belongs to the sequence group to which the sequence used by the CSI-RS is transmitted, and the first scheduling scheme, receive the preset sequence sent by the network device on the first frequency band. The measured signal is modulated.

Therefore, the measurement signal and the CSI-RS are modulated using the same sequence, and the design of the CSI-RS sequence can be reused, so that the UE and the network device need to store more sequences in advance, thereby reducing the storage of the user equipment and the network equipment. Space requirements.

In the embodiment of the present invention, as shown in FIG. 25, optionally, the method 4200 for the user equipment to receive the measurement signal includes: S4220: Receive, according to the first scheduling scheme and the configuration information of the network device broadcast notification, the measurement signal that is sent by the network device and modulated by the preset sequence, on the first frequency band.

In S4300, the user equipment sends the reference scheduling information determined according to the measurement signal to the network device.

In S4400, the user equipment detects scheduling adjustment information that is sent by the network device according to the reference scheduling information, and the scheduling adjustment information is used to determine a second scheduling scheme for receiving the downlink data signal.

Therefore, optionally, as shown in FIG. 26, the method 4400 for the user equipment to receive scheduling adjustment information includes:

S4410: Receive a scheduling adjustment group number and a sequence number in the group sent by the network device.

S4420, according to the scheduling adjustment group number and the serial number in the group, detecting that the network device sends The scheduling adjustment information.

Since the number of bits of the scheduling adjustment information is small, the multicast mode is used for transmission, which can avoid the network device from transmitting multiple signaling packets, thereby reducing the signaling overhead of the system.

In the embodiment of the present invention, optionally, as shown in FIG. 26, the method 4400 for receiving, by the user equipment, the scheduling adjustment information includes:

54430. Determine, according to the frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information.

S4440: Detect, according to the information sequence, the scheduling adjustment information sent by the network device.

Therefore, in the embodiment of the present invention, the scheduling adjustment information of multiple UEs may be respectively carried in the signaling packet group, and the scheduling adjustment information of the UE may be indicated by scheduling the adjustment group number and the intra-group serial number, or one or The scheduling adjustment information of multiple UEs is carried in one signaling packet, and the scheduling adjustment information of the UE is indicated by the information order, thereby reducing the overhead of system signaling.

In the embodiment of the present invention, optionally, as shown in FIG. 28, the method 4430 for determining, by the user equipment, the information sequence of the scheduling adjustment information includes:

54431, determining, by the resource block, a resource block number of one PRB in the at least one physical resource block PRB included in the frequency band information; or

54432, determining, by using the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

54433. The result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number is determined as the information order.

In S4500, the user equipment receives the downlink data signal sent by the network device on the first frequency band according to the second scheduling scheme.

Optionally, the user equipment is in the first frequency band according to the second scheduling scheme, and receives the The same number of layers, precoding matrix or antenna port of the measurement signal are received, and the downlink data signal sent by the network device is received.

In the embodiment of the present invention, optionally, receiving the first scheduling scheme or receiving the first moment to which the measurement signal belongs, sending the second moment to which the reference scheduling information belongs, detecting the scheduling adjustment information, or receiving the downlink data The third time to which the signal belongs is equal to the time interval between the first time and the second time and between the second time and the third time.

TTI, the second moment is separated from the third moment by two or four TTIs.

In the embodiment of the present invention, optionally, the time when the first scheduling solution is received is the same as the time when the measurement signal is received; the time when the scheduling adjustment information is detected is the same as the time when the downlink data signal is received. .

In the current communication system, the time at which the network device transmits scheduling signaling to the UE is the same as the timing at which the downlink data signal is transmitted to the UE. Therefore, the present invention also uses the method, and can continue to use the timing in the current communication system to avoid the need for the UE or the network device to implement multiple sets of timing.

It should be understood that, for the transmission of the downlink data signal, the interaction between the user equipment and the network device described on the user equipment side and related characteristics, functions, and the like are similar to the description about the transmission of the uplink data signal. Narration.

With reference to FIG. 1 to FIG. 28 above, a method for transmitting an uplink data signal and a downlink data signal according to an embodiment of the present invention is described in detail from the perspective of a network device and a user equipment, respectively. A network device and a user device according to an embodiment of the present invention will be described in detail with reference to FIGS. 29 to 49. FIG. 29 shows a schematic block diagram of a network device 6000 in accordance with an embodiment of the present invention. As shown in FIG. 29, the network device 6000 includes:

The first sending module 6100 is configured to send, to the user equipment, a first scheduling scheme, where the first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band;

The first receiving module 6200 is configured to receive, on the first frequency band, a measurement signal that is sent by the user equipment according to the first scheduling scheme;

The second sending module 6300 is configured to send, to the user equipment, the scheduling adjustment information that is determined according to the measurement signal, where the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal;

The second receiving module 6400 is configured to receive, on the first frequency band, the uplink data signal that is sent by the user equipment according to the second scheduling scheme.

Therefore, the network device in the embodiment of the present invention determines the matching of the scheduling scheme and the signal quality at the time of the signal transmission, and improves the signal transmission by transmitting the measurement signal and determining the scheduling adjustment information according to the measurement signal, thereby adjusting the final scheduling scheme. The reliability of the signal transmission can be improved.

In the embodiment of the present invention, as shown in FIG. 30, the network device 6000 further includes: a decoding module 6500, configured to receive the uplink according to the first scheduling scheme and/or the second scheduling scheme. The data signal is decoded.

In the embodiment of the present invention, the decoding module 6500 is further configured to: when the received uplink data signal is incorrectly decoded according to the second scheduling scheme, receive the uplink according to the first scheduling scheme. The data signal is decoded.

In the embodiment of the present invention, the first receiving module 6200 is further configured to: receive, according to the preset sequence, the measurement signal that is sent by the user equipment and modulated by the preset sequence, on the first frequency band.

In the embodiment of the present invention, as shown in FIG. 3, the network device 6000 further includes: a notification module 6600, configured to broadcast to the user equipment, the comb tooth information for transmitting the measurement signal, the comb tooth The information is different from the comb information allocated to the user equipment for transmitting the sounding reference signal SRS;

The first receiving module 6200 is further configured to: receive, according to the comb information and the preset sequence, the measurement signal that is sent by the user equipment and modulated by the preset sequence on the first frequency band. In the embodiment of the present invention, the second sending module 6300 is further configured to send the scheduling adjustment information to the user equipment, where the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. Kind. Preferably, the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

In the embodiment of the present invention, the second sending module 6300 is further configured to: send the scheduling adjustment information to the user equipment by using a multicast mode.

In the embodiment of the present invention, as shown in FIG. 32A, optionally, the second sending module 6300 includes:

The first sending unit 6310 is configured to send, to the user equipment, a scheduling adjustment group number and a sequence number in the group;

The second sending unit 6320 is configured to adjust the group number and the sequence number in the group according to the scheduling, and send the scheduling adjustment information to the user equipment.

In the embodiment of the present invention, as shown in FIG. 32B, optionally, the second sending module 6300 includes:

a determining unit 6330, configured to determine, according to the frequency band information of the first scheduling scheme, an information sequence for sending the scheduling adjustment information;

The third sending unit 6340 is configured to send the scheduling adjustment information to the user equipment according to the information order.

In the embodiment of the present invention, as shown in FIG. 33, the determining unit 6330 includes: a first determining subunit 6331, configured to include at least one physical resource block included in the frequency band information.

The resource block number of a PRB in the PRB is determined as the order of the information; or

a second determining subunit 6332, configured to determine, by the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

The third determining subunit 6333 is configured to determine, as the information order, a result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number.

In the embodiment of the present invention, the second receiving module 6400 is further configured to: receive, by using the same layer number, a precoding matrix, or an antenna port as the receiving the measurement signal, on the first frequency band, and send the user equipment to send The upstream data signal.

In the embodiment of the present invention, optionally, the first sending module 6100 sends the first moment to which the first scheduling scheme belongs, the second receiving moment that the first receiving module 6200 receives the measurement signal, and the second sending The module 6300 sends the third moment to which the scheduling adjustment information belongs and the first The receiving module 6400 receives the fourth time to which the uplink data signal belongs, between the first time and the second time, between the second time and the third time, and the third time and the fourth time The time intervals are equal.

In the embodiment of the present invention, optionally, the first sending module 6100 sends the first moment to which the first scheduling scheme belongs, the second receiving moment that the first receiving module 6200 receives the measurement signal, and the second sending The module 6300 sends a third time to which the scheduling adjustment information belongs, and a fourth time that the second receiving module 6400 receives the uplink data signal, the first time and the second time, and the third time and the fourth time. A transmission time interval TTI is separated between the times, and the second time is separated from the third time by two TTIs.

In the embodiment of the present invention, the first receiving module 6200 is further configured to: send the user equipment to send on the last or last two symbols of the second time The measurement signal. The network device in the method of transmitting signals, and the above-mentioned and other operations and/or functions of the respective modules in the network device 6000 are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 1 to 10. Narration.

FIG. 34 shows a schematic block diagram of a user equipment 7000 in accordance with an embodiment of the present invention. As shown in FIG. 34, the user equipment 7000 includes:

The receiving module 7100 is configured to receive a first scheduling scheme that is sent by the network device, where the first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band.

The first sending module 7200 is configured to send, according to the first scheduling scheme, a measurement signal to the network device on the first frequency band;

The detecting module 7300 is configured to detect the scheduling adjustment information that is sent by the network device according to the measurement signal, and determine, according to the result of detecting the scheduling adjustment information, a second scheduling scheme for sending the uplink data signal;

The second sending module 7400 is configured to send the uplink data signal to the network device on the first frequency band according to the second scheduling scheme. Therefore, the user equipment in the embodiment of the present invention adjusts the channel scheduling quality and improves the signal transmission by transmitting the measurement signal and determining the scheduling adjustment information according to the measurement signal, thereby adjusting the final scheduling scheme. The reliability of the signal transmission can be improved.

In the embodiment of the present invention, optionally, as shown in FIG. 35, the first sending module 7200 includes:

The first sending unit 7210 is configured to send, according to the first scheduling scheme, the measurement signal modulated by the preset sequence to the network device on the first frequency band.

In the embodiment of the present invention, optionally, as shown in FIG. 36, the first sending unit 7210 includes:

The first sending subunit 7211 is configured to send, according to the first scheduling scheme, the measurement signal modulated by the preset sequence to the network device on the first frequency band, the sequence group to which the preset sequence belongs, and the sending sounding reference The sequence used by the signal SRS belongs to the same sequence group; or

The second sending subunit 7212 is configured to send, according to the first scheduling scheme and the comb information of the network device broadcast notification, the measurement signal modulated by the preset sequence to the network device on the first frequency band.

In the embodiment of the present invention, the detecting module 7300 is further configured to detect the scheduling adjustment information that is sent by the network device, where the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. . Preferably, the scheduling adjustment information includes an adjustment value of a modulation coding scheme.

In the embodiment of the present invention, optionally, as shown in FIG. 37A, the detecting module 7300 includes: a receiving unit 7310, configured to receive a scheduling adjustment group number and a sequence number in the group sent by the network device;

The first detecting unit 7320 is configured to adjust the group number and the sequence number in the group according to the scheduling, and detect the scheduling adjustment information sent by the network device.

In the embodiment of the present invention, optionally, as shown in FIG. 37B, the detecting module 7300 includes: a determining unit 7330, configured to determine, according to the frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information;

The second detecting unit 7340 is configured to detect the scheduling adjustment information sent by the network device according to the information order.

In the embodiment of the present invention, optionally, as shown in FIG. 38, the determining unit 7330 includes: a first determining subunit 7331, configured to determine a resource block number of one PRB of the at least one physical resource block PRB included in the frequency band information as the information order; or

a second determining subunit 7332, configured to determine, by the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

The third determining subunit 7333 is configured to determine, as the information order, a result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number.

In the embodiment of the present invention, the detecting module 7300 is further configured to: when the scheduling adjustment information sent by the network device is not detected, determine the first scheduling scheme as the second scheduling scheme.

In the embodiment of the present invention, optionally, as shown in FIG. 39, the second sending module 7400 includes:

The second sending unit 7410 is configured to: when the scheduling adjustment information does not include the sending power, send the uplink to the network device on the first frequency band according to the second scheduling scheme, according to the same sending power as sending the measurement signal. Data signal.

The third sending unit 7420 is configured to send, according to the second scheduling scheme, the uplink data signal to the network device by using the same number of layers, a precoding matrix or an antenna port as the measurement signal.

In the embodiment of the present invention, optionally, the receiving module 7100 receives the first time to which the first scheduling solution belongs, and the second time that the first sending module 7200 sends the measurement signal, and the detecting module 7300 detects the second time. The third time to which the scheduling adjustment information belongs and the fourth time to which the second data transmission module 7400 belongs, the first time and the second time, and between the second time and the third time, And the time interval between the third moment and the fourth moment is equal.

In the embodiment of the present invention, optionally, the receiving module 7100 receives the first time to which the first scheduling solution belongs, and the second time that the first sending module 7200 sends the measurement signal, and the detecting module 7300 detects the second time. The third time to which the scheduling adjustment information belongs and the fourth time to which the second transmitting module 7400 belongs, the interval between the first time and the second time, and the third time and the fourth time A transmission time interval TTI, the second time interval being separated from the third time by two TTIs. In the embodiment of the present invention, the first sending module 7200 is further configured to: on the last or last two symbols of the second moment, on the first frequency band according to the first scheduling scheme. The measurement signal is sent to the network device.

It should be understood that the user equipment 7000 according to the embodiment of the present invention may correspond to the user equipment in the method for transmitting signals according to the embodiment of the present invention, and corresponding to the network device 6000 according to the embodiment of the present invention, each module in the user equipment 7000 The above and other operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 11 to 16, and are not described herein again.

Therefore, the user equipment in the embodiment of the present invention adjusts the channel scheduling quality and improves the signal transmission by transmitting the measurement signal and determining the scheduling adjustment information according to the measurement signal, thereby adjusting the final scheduling scheme. The reliability of the signal transmission can be improved.

Figure 40 shows a schematic block diagram of a network device 8000 in accordance with an embodiment of the present invention. As shown in FIG. 40, the network device 8000 includes:

The first sending module 8100 is configured to send, to the user equipment, a first scheduling scheme, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band;

a second sending module 8200, configured to send a measurement signal to the user equipment on the first frequency band, and a receiving module 8300, configured to receive reference scheduling information that is sent by the user equipment according to the measurement signal, and according to the reference scheduling information Determining scheduling adjustment information, where the scheduling adjustment information is used to determine a second scheduling scheme for transmitting the downlink data signal to the user equipment;

The third sending module 8400 is configured to send the scheduling adjustment information to the user equipment, and the fourth sending module 8500 is configured to send the downlink data signal to the user equipment on the first frequency band according to the second scheduling scheme.

In the embodiment of the present invention, optionally, as shown in FIG. 41, the second sending module 8200 includes:

The first sending unit 8210 is configured to send, by using the preset sequence, the measurement signal to the user equipment on the first frequency band.

In the embodiment of the present invention, optionally, the first sending unit 8210 includes: a first sending subunit, configured to send, by using the preset sequence, the measurement signal to the user equipment on the first frequency band, where the preset sequence belongs to the sequence group and the used channel state information reference signal CSI-RS The sequence group to which the sequence belongs is the same.

In the embodiment of the present invention, optionally, as shown in FIG. 42, the network device 8000 further includes: a notification module 8600, configured to broadcast, to the user equipment, configuration information for transmitting the measurement signal;

The first sending unit 8210 includes:

The second sending subunit 8211 is configured to send, according to the configuration information, the measurement signal modulated by the preset sequence to the user equipment on the first frequency band.

In the embodiment of the present invention, the third sending module 8400 is further configured to send the scheduling adjustment information to the user equipment, where the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. Kind. Preferably, the scheduling adjustment information includes an adjustment value of a modulation coding scheme.

In the embodiment of the present invention, the third sending module 8400 is further configured to send the scheduling adjustment information to the user equipment by using a multicast mode.

In the embodiment of the present invention, optionally, as shown in FIG. 43A, the third sending module 8400 includes:

a second sending unit 8410, configured to send a scheduling adjustment group number and a sequence number in the group to the user equipment;

The third sending unit 8420 is configured to adjust the group number and the sequence number in the group according to the scheduling, and send the scheduling adjustment information to the user equipment.

In the embodiment of the present invention, optionally, as shown in FIG. 43B, the third sending module 8400 includes:

a determining unit 8430, configured to determine, according to the frequency band information of the first scheduling scheme, an order of information for transmitting the scheduling adjustment information;

The fourth sending unit 8440 is configured to send the scheduling adjustment information to the user equipment according to the information sequence.

In the embodiment of the present invention, optionally, as shown in FIG. 44, the determining unit 8430 includes: a first determining subunit 8431, and a resource for one PRB of the at least one physical resource block PRB included in the frequency band information. The block number is determined as the order of the information; or

a second determining subunit 8432, configured to use the resource block number pair to carry the scheduling adjustment information The result of modulo the number of bits of the signaling packet is determined as the order of the information; or

The third determining subunit 8433 is configured to determine, as the information order, a result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number.

In the embodiment of the present invention, optionally, as shown in FIG. 45, the fourth sending module 8500 includes:

The fifth sending unit 8510 is configured to: when the scheduling adjustment information does not include the sending power, send the downlink to the user equipment on the first frequency band according to the second scheduling scheme, with the same sending power as the sending the measurement signal. Data signal.

The sixth sending unit 8520 is configured to send, according to the second scheduling scheme, the downlink data signal to the user equipment on the first frequency band by using the same number of layers, a precoding matrix or an antenna port as the measurement signal.

In the embodiment of the present invention, optionally, the first sending module 8100 sends the first scheduling scheme or the second sending module 8200 sends the first moment to which the measurement signal belongs, and the receiving module 8300 receives the reference scheduling information. The second time, the third sending module 8400 sends the scheduling adjustment information, or the third time that the fourth sending module 8500 sends the downlink data signal, the first time and the second time, and the second time The time interval between the time and the third time is equal.

In the embodiment of the present invention, optionally, the first time and the second time are separated by two or four transmission time intervals, and the second time and the third time are separated by two or four. TTL

In the embodiment of the present invention, optionally, the time when the first sending module 8100 sends the first scheduling solution is the same as the time when the second sending module 8200 sends the measurement signal; the third sending module 8400 sends The timing of the scheduling adjustment information is the same TTI as the timing at which the fourth transmission module 8500 transmits the downlink data signal. The network device in the method of transmitting signals, and the above and other operations and/or functions of the respective modules in the network device 8000 are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 17 to 23, Narration.

Therefore, the network device of the embodiment of the present invention transmits the measurement signal and according to the measurement signal The number adjustment scheduling information is determined, thereby adjusting the final scheduling scheme, which can improve the channel quality matching between the scheduling scheme and the signal transmission time, improve the reliability of signal transmission, and thereby improve the efficiency of signal transmission.

Figure 46 shows a schematic block diagram of a user equipment 9000 in accordance with an embodiment of the present invention. As shown in Figure 46, the user equipment 9000 includes:

The first receiving module 9100 is configured to receive a first scheduling scheme that is sent by the network device, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band.

The second receiving module 9200 is configured to receive, according to the first scheduling scheme, a measurement signal sent by the network device on the first frequency band;

a sending module 9300, configured to send, to the network device, reference scheduling information determined according to the measurement signal;

The detecting module 9400 is configured to detect scheduling adjustment information that is sent by the network device according to the reference scheduling information, where the scheduling adjustment information is used to determine a second scheduling scheme for receiving the downlink data signal;

The third receiving module 9500 is configured to receive, according to the second scheduling scheme, the downlink data signal sent by the network device on the first frequency band.

In the embodiment of the present invention, optionally, as shown in FIG. 47, the second receiving module 9200 includes:

The first receiving unit 9210 is configured to receive, according to the preset sequence and the first scheduling scheme, the measurement signal that is sent by the network device and modulated by the preset sequence on the first frequency band.

In the embodiment of the present invention, optionally, as shown in FIG. 47, the first receiving unit 9210 includes:

The first receiving subunit 9211 is configured to receive the network device according to the preset sequence group that belongs to the sequence group to which the sequence used by the CSI-RS is transmitted, and the first scheduling scheme. The transmitted measurement signal modulated by the preset sequence; or

The second receiving subunit 9212 is configured to receive, according to the first scheduling scheme and the configuration information of the network device broadcast notification, the preset sequence sent by the network device on the first frequency band. The measured signal is modulated.

In the embodiment of the present invention, the detecting module 9400 is configured to detect the scheduling adjustment information, where the scheduling adjustment information includes at least one of sending power information, modulation mode information, and encoding rate information. Preferably, the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

In the embodiment of the present invention, optionally, as shown in FIG. 48A, the detecting module 9400 includes: a second receiving unit 9410, configured to receive a scheduling adjustment group number and a sequence number in the group sent by the network device;

The first detecting unit 9420 is configured to adjust the group number and the sequence number in the group according to the scheduling, and detect the scheduling adjustment information sent by the network device.

In the embodiment of the present invention, optionally, as shown in FIG. 48B, the detecting module 9400 includes: a determining unit 9430, configured to determine, according to the frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information;

The second detecting unit 9440 is configured to detect the scheduling adjustment information sent by the network device according to the information order.

In the embodiment of the present invention, optionally, as shown in FIG. 49, the determining unit 9430 includes: a first determining subunit 9431, and a resource for one PRB of the at least one physical resource block PRB included in the frequency band information. The block number is determined as the order of the information; or

a second determining subunit 9432, configured to determine, by the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

The third determining subunit 9433 is configured to determine, as the information order, a result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number.

In the embodiment of the present invention, the third receiving module 9500 is further configured to: use the same layer number, precoding matrix or antenna as the measurement signal according to the second scheduling scheme on the first frequency band. The port receives the downlink data signal sent by the network device.

In the embodiment of the present invention, optionally, the first receiving module 9100 receives the first scheduling scheme or the second receiving module 9200 receives the first moment to which the measurement signal belongs, and the sending module 9300 sends the reference scheduling information. The second time, the detection module 9400 detects the scheduling adjustment information, or the third receiving module 9500 receives the third time to which the downlink data signal belongs, between the first time and the second time, and the second time The time intervals between the third moments are equal.

In the embodiment of the present invention, optionally, the first time and the second time are separated by two Or four transmission time intervals, two or four TTLs between the second time and the third time

In the embodiment of the present invention, optionally, the time when the first receiving module 9100 receives the first scheduling solution and the time when the second receiving module 9200 receives the measurement signal belong to the same TTI; the detecting module 9400 detects the scheduling. The time at which the information is adjusted is the same TTI as the time at which the third receiving module 9500 receives the downlink data signal.

It should be understood that the user equipment 9000 according to the embodiment of the present invention may correspond to the user equipment in the method for transmitting signals according to the embodiment of the present invention, and corresponding to the network device 8000 according to the embodiment of the present invention, each module in the user equipment 9000 The above and other operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 24 to 28, and are not described herein again.

In addition, the terms "system," and "network" are used interchangeably herein. The term "and/or" in this article is merely an association describing the associated object, indicating that there can be three relationships, for example, Α and / or Β, which can mean: A exists separately, and both A and B exist separately. B These three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean that B is determined only on the basis of A, and that B can be determined based on A and/or other information.

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, in order to clearly illustrate 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.

It can be clearly understood by those skilled in the art that for the convenience and cleanness of the description, the specific working processes of the systems, devices and units described above can be referred to the foregoing method embodiments. The corresponding process is not repeated here.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. 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 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 components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over 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 USB flash drive, a mobile hard disk, and a read only memory.

(ROM, Read-Only Memory), Random Access Memory (RAM, Random Access)

A medium that can store program code, such as a Memory), a disk, or an optical disk.

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. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A method for transmitting a signal, comprising:

Sending, to the user equipment, a first scheduling scheme, where the first scheduling scheme is used to instruct the user equipment to send an uplink data signal on the first frequency band;

Receiving, on the first frequency band, a measurement signal sent by the user equipment according to the first scheduling scheme;

Sending the scheduling adjustment information determined according to the measurement signal to the user equipment, where the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal;

And receiving, on the first frequency band, the uplink data signal that is sent by the user equipment according to the second scheduling scheme.

The method according to claim 1, wherein the method further comprises: decoding the received uplink data signal according to the first scheduling scheme and/or the second scheduling scheme.

The method according to claim 2, wherein the decoding the received uplink data signal comprises:

And when the received uplink data signal is incorrectly decoded according to the second scheduling scheme, the received uplink data signal is decoded according to the first scheduling scheme.

The method according to any one of claims 1 to 3, wherein the receiving the measurement signal sent by the user equipment according to the first scheduling scheme on the first frequency band includes:

Receiving, according to a preset sequence, the measurement signal transmitted by the user equipment and modulated by the preset sequence on the first frequency band.

The method according to claim 4, wherein the method further comprises: broadcasting, to the user equipment, comb information for transmitting the measurement signal, the comb information and the user The comb-tooth information allocated by the device for transmitting the sounding reference signal SRS is different;

Receiving, by the user equipment, the measurement signal that is sent by the preset sequence and is modulated by the user equipment, including:

Receiving the user on the first frequency band according to the comb tooth information and the preset sequence The measurement signal transmitted by the device and modulated by the preset sequence.

The method according to any one of claims 1 to 5, wherein the scheduling adjustment information comprises at least one of transmission power information, modulation mode information, and coding rate information; or

The scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

The method according to any one of claims 1 to 6, wherein the sending the scheduling adjustment information determined according to the measurement signal to the user equipment comprises:

The scheduling adjustment information is sent to the user equipment in a multicast manner.

The method according to claim 7, wherein the sending the scheduling adjustment information to the user equipment by using a multicast mode includes:

Sending a scheduling adjustment group number and a serial number in the group to the user equipment;

And transmitting, according to the scheduling adjustment group number and the intra-group serial number, the scheduling adjustment information to the user equipment.

Determining, according to the frequency band information of the first scheduling scheme, an information sequence for sending the scheduling adjustment information;

And transmitting the scheduling adjustment information to the user equipment according to the information order.

The method according to claim 9, wherein the determining the order of information for transmitting the scheduling adjustment information comprises:

Determining, by the resource block number of one PRB of the at least one physical resource block PRB included in the frequency band information, the information order; or

Determining, by the resource block number, a result of modulating a number of bits of a signaling packet carrying the scheduling adjustment information as the information order; or

The result of modulo the number of bits of the signaling packet by the sum of the resource block number and the random number is determined as the information order.

The method according to any one of claims 1 to 10, wherein the receiving, in the first frequency band, the uplink data signal sent by the user equipment according to the second scheduling scheme, Includes:

Receiving, on the first frequency band, the uplink data signal sent by the user equipment by using the same number of layers, a precoding matrix or an antenna port as the measurement signal.

The method according to any one of claims 1 to 11, wherein the sending the scheduling is performed for sending a first moment to which the first scheduling scheme belongs, receiving a second moment to which the measurement signal belongs, Adjusting a third time to which the information belongs and receiving a fourth time to which the uplink data signal belongs, between the first time and the second time, between the second time and the third time, and The time interval between the third time and the fourth time is equal.

The method according to any one of claims 1 to 11, wherein the sending the scheduling is performed for sending a first moment to which the first scheduling scheme belongs, receiving a second moment to which the measurement signal belongs Adjusting a third time to which the information belongs and receiving a fourth time to which the uplink data signal belongs, a transmission between the first time and the second time, and between the third time and the fourth time The time interval ΤΉ, the second time is separated from the third time by two TTIs.

The method according to claim 12 or 13, wherein the receiving the measurement signal sent by the user equipment according to the first scheduling scheme on the first frequency band comprises: The last or last two symbols of the time ΤΉ, and the measurement signal transmitted by the user equipment is received on the first frequency band.

15. A method of transmitting a signal, comprising:

Receiving, by the network device, a first scheduling scheme, where the first scheduling scheme is used to indicate that the user equipment sends an uplink data signal on the first frequency band;

And transmitting, according to the first scheduling scheme, a measurement signal to the network device on the first frequency band;

Detecting scheduling adjustment information that is determined by the network device according to the measurement signal, and determining, according to a result of detecting the scheduling adjustment information, a second scheduling scheme for sending the uplink data signal;

And transmitting, according to the second scheduling scheme, the uplink data signal to the network device on the first frequency band.

The method according to claim 15, wherein the transmitting the measurement signal to the network device on the first frequency band comprises:

And transmitting, according to the first scheduling scheme, the measurement signal modulated by a preset sequence to the network device on the first frequency band.

The method according to claim 16, wherein the transmitting, by the preset sequence, the measurement signal to the network device on the first frequency band comprises: And transmitting, according to the first scheduling scheme, the measurement signal modulated by the preset sequence to the network device on the first frequency band, where the sequence group to which the preset sequence belongs and the transmission sounding reference signal SRS are used. The sequence belongs to the same sequence group; or

And transmitting, according to the first scheduling scheme and the comb information of the network device broadcast notification, the measurement signal modulated by the preset sequence to the network device on the first frequency band.

The method according to any one of claims 15 to 17, wherein the scheduling adjustment information comprises at least one of transmission power information, modulation mode information, and coding rate information; or

The method according to any one of claims 15 to 18, wherein the detecting, by the network device, the scheduling adjustment information determined according to the measurement signal, comprises: receiving, sent by the network device Scheduling adjustment group number and serial number within the group;

And detecting, according to the scheduling adjustment group number and the intra-group serial number, the scheduling adjustment information sent by the network device.

The method according to any one of claims 15 to 18, wherein the detecting, by the network device, the scheduling adjustment information determined according to the measurement signal comprises: according to the first scheduling scheme Frequency band information, determining an order of information for detecting the scheduling adjustment information;

And detecting, according to the information order, the scheduling adjustment information sent by the network device.

The method according to claim 20, wherein the determining the order of detecting the information of the scheduling adjustment information comprises:

The method according to any one of claims 15 to 21, wherein the determining a second scheduling scheme for transmitting the uplink data signal comprises:

When the scheduling adjustment information sent by the network device is not detected, the first The scheduling scheme is determined to be the second scheduling scheme.

The method according to any one of claims 15 to 22, wherein the transmitting the uplink data signal to the network device on the first frequency band comprises:

When the scheduling adjustment information does not include the transmission power, according to the second scheduling scheme, sending the uplink data signal to the network device on the first frequency band with the same transmission power as transmitting the measurement signal. .

The method according to any one of claims 15 to 23, wherein the transmitting the uplink data signal to the network device on the first frequency band comprises:

And transmitting, according to the second scheduling scheme, the uplink data signal to the network device on the first frequency band by using the same number of layers, a precoding matrix or an antenna port as the measurement signal.

The method according to any one of claims 15 to 24, wherein, for receiving the first time to which the first scheduling scheme belongs, transmitting the second time to which the measurement signal belongs, detecting the scheduling Adjusting a third time to which the information belongs and a fourth time to which the uplink data signal belongs, between the first time and the second time, between the second time and the third time, and The time interval between the third time and the fourth time is equal.

The method according to any one of claims 15 to 24, wherein, for receiving the first moment to which the first scheduling scheme belongs, transmitting the second moment to which the measurement signal belongs, detecting the scheduling Adjusting a third time to which the information belongs and transmitting a fourth time to which the uplink data signal belongs, a transmission between the first time and the second time, and between the third time and the fourth time The time interval TTI is two TTIs between the second time and the third time.

The method according to claim 25 or 26, wherein the transmitting the measurement signal to the network device on the first frequency band comprises:

And transmitting, on the first frequency band, the measurement signal to the network device according to the first scheduling scheme on a last or last two symbols of the second time instant.

28. A method of transmitting a signal, comprising:

Sending a first scheduling scheme to the user equipment, where the first scheduling scheme is used to instruct the user equipment to receive a downlink data signal on the first frequency band;

Transmitting a measurement signal to the user equipment on the first frequency band;

Receiving reference scheduling information determined by the user equipment according to the measurement signal, and determining scheduling adjustment information according to the reference scheduling information, where the scheduling adjustment information is used to determine a direction Transmitting, by the user equipment, a second scheduling scheme of the downlink data signal;

Sending the scheduling adjustment information to the user equipment;

And transmitting, according to the second scheduling scheme, the downlink data signal to the user equipment on the first frequency band.

The method according to claim 28, wherein the sending the measurement signal to the user equipment on the first frequency band comprises:

The measurement signal modulated by the preset sequence is transmitted to the user equipment on the first frequency band.

The method according to claim 29, wherein the transmitting, by the preset sequence, the measurement signal to the user equipment on the first frequency band comprises:

Transmitting, by the user equipment, the measurement signal modulated by the preset sequence to the user equipment, where the sequence group to which the preset sequence belongs and the sequence used by the transmission channel state information reference signal CSI-RS belong to The sequence group is the same.

The method according to claim 29, wherein the method further comprises: broadcasting, to the user equipment, configuration information for transmitting the measurement signal; The user equipment sends the measurement signal modulated by a preset sequence, including:

And transmitting, according to the configuration information, the measurement signal modulated by the preset sequence to the user equipment on the first frequency band.

The method according to any one of claims 28 to 31, wherein the scheduling adjustment information comprises at least one of transmission power information, modulation mode information, and coding rate information; or

The method according to any one of claims 28 to 32, wherein the sending the scheduling adjustment information to the user equipment comprises:

The method according to claim 33, wherein the sending the scheduling adjustment information to the user equipment by using a multicast mode includes:

The method according to claim 35, wherein the determining the order of information for transmitting the scheduling adjustment information comprises:

The method according to any one of claims 28 to 36, wherein the transmitting the downlink data signal to the user equipment on the first frequency band comprises:

When the scheduling adjustment information does not include the transmission power, according to the second scheduling scheme, transmitting the downlink data signal to the user equipment on the first frequency band by using the same transmission power as the measurement signal. .

The method according to any one of claims 28 to 37, wherein the transmitting the downlink data signal to the user equipment on the first frequency band comprises:

And transmitting, according to the second scheduling scheme, the downlink data signal to the user equipment on the first frequency band by using the same number of layers, a precoding matrix or an antenna port as the measurement signal.

The method according to any one of claims 28 to 38, wherein, for transmitting the first scheduling scheme or transmitting the first moment to which the measurement signal belongs, receiving the reference to the reference scheduling information Transmitting, by the second time, the scheduling adjustment information or the third time to which the downlink data signal belongs, between the first time and the second time, and between the second time and the third time The time intervals are equal.

The method according to claim 39, wherein the first time and the second time are separated by two or four transmission time intervals TTI, the second time and the third time Two or four TTIs are spaced apart.

The method according to any one of claims 28 to 38, wherein the time at which the first scheduling scheme is sent belongs to the same TTI as the time at which the measurement signal is sent, and the scheduling adjustment information is sent. The time belongs to the same TTI as the time at which the downlink data signal is transmitted.

42. A method of transmitting a signal, comprising:

Receiving, by the receiving network device, a first scheduling scheme, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band;

Receiving, according to the first scheduling scheme, a measurement signal sent by the network device on the first frequency band;

And sending, by the network device, reference scheduling information that is determined according to the measurement signal, and detecting, by the network device, scheduling adjustment information that is determined according to the reference scheduling information, where the scheduling adjustment information is used to determine to receive the downlink data signal. a second scheduling scheme; receiving, according to the second scheduling scheme, the downlink data signal sent by the network device on the first frequency band.

The method according to claim 42, wherein the receiving the measurement signal sent by the network device on the first frequency band comprises:

And receiving, according to the preset sequence and the first scheduling scheme, the measurement signal that is sent by the network device and modulated by the preset sequence, on the first frequency band.

The method according to claim 43, wherein the receiving, by the network device, the measurement signal that is modulated by the preset sequence, sent by the network device, according to the sequence And the first scheduling scheme is configured to receive, by the network device, the preset sequence modulation sent by the network device, where the group is the same as the sequence group to which the sequence used by the CSI-RS is sent, and the first scheduling scheme. Said measurement signal; or

And receiving, according to the first scheduling scheme and the configuration information of the network device broadcast notification, the measurement signal that is sent by the network device and modulated by the preset sequence, on the first frequency band.

The method according to any one of claims 42 to 44, wherein the scheduling adjustment information comprises at least one of transmission power information, modulation mode information, and coding rate information; or

The method according to any one of claims 42 to 45, wherein the detecting, by the network device, scheduling adjustment information determined according to the reference scheduling information, Includes:

Receiving a scheduling adjustment group number and a serial number in the group sent by the network device;

The method according to any one of claims 42 to 46, wherein the detecting, by the network device, the scheduling adjustment information determined according to the reference scheduling information, includes:

Determining, according to the frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information;

The method according to claim 47, wherein the determining the order of detecting the information of the scheduling adjustment information comprises:

The method according to any one of claims 42 to 48, wherein the receiving the downlink data signal sent by the network device on the first frequency band comprises: Receiving, according to the second scheduling scheme, the downlink data signal sent by the network device according to the second layer, the precoding matrix or the antenna port that receives the measurement signal.

The method according to any one of claims 42 to 49, wherein, for receiving the first scheduling scheme or receiving the first moment to which the measurement signal belongs, sending the reference scheduling information to a second time, detecting the scheduling adjustment information or receiving a third time to which the downlink data signal belongs, between the first time and the second time, and between the second time and the third time The time intervals are equal.

The method according to claim 50, wherein the first time and the second time are separated by two or four transmission time intervals TTI, the second time and the third time Two or four TTIs are spaced apart.

The method according to any one of claims 42 to 49, wherein the time at which the first scheduling scheme is received and the time at which the measurement signal is received belong to the same TTI; and the scheduling adjustment information is detected. The time belongs to the same TTI as the time at which the downlink data signal is received.

A network device, comprising:

a first sending module, configured to send a first scheduling scheme to the user equipment, where the first scheduling scheme is used to instruct the user equipment to send an uplink data signal on the first frequency band;

a first receiving module, configured to receive, on the first frequency band, a measurement signal that is sent by the user equipment according to the first scheduling scheme;

a second sending module, configured to send, to the user equipment, the scheduling adjustment information that is determined according to the measurement signal, where the scheduling adjustment information is used by the user equipment to determine a second scheduling scheme for sending the uplink data signal;

And a second receiving module, configured to receive, on the first frequency band, the uplink data signal that is sent by the user equipment according to the second scheduling scheme.

The network device according to claim 53, wherein the network device further comprises:

And a decoding module, configured to decode the received uplink data signal according to the first scheduling scheme and/or the second scheduling scheme.

The network device according to claim 54, wherein the decoding module is further configured to: when the received uplink data signal is incorrectly decoded according to the second scheduling scheme, according to the A scheduling scheme decodes the received uplink data signal.

The network device according to any one of claims 53 to 55, wherein the first receiving module is further configured to: receive, according to a preset sequence, the user equipment to send on the first frequency band The measurement signal modulated by the preset sequence.

The network device according to claim 56, wherein the network device further comprises:

a notification module, configured to broadcast, to the user equipment, a comb tooth information for transmitting the measurement signal, where the comb tooth information is different from the comb tooth information allocated to the user equipment for transmitting the sounding reference signal SRS;

The first receiving module is further configured to: receive, according to the comb tooth information and the preset sequence, the measurement signal that is sent by the user equipment and modulated by the preset sequence, on the first frequency band.

The network device according to any one of claims 53 to 57, wherein the second sending module is further configured to send the scheduling adjustment information to the user equipment, where the scheduling adjustment information includes sending At least one of power information, modulation mode information, and coding rate information; or the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

The network device according to any one of claims 53 to 58, wherein the second sending module is further configured to: send the scheduling adjustment information to the user equipment by using a multicast manner.

The network device according to claim 59, wherein the second sending module comprises:

a first sending unit, configured to send a scheduling adjustment group number and a sequence number in the group to the user equipment;

And a second sending unit, configured to send the scheduling adjustment information to the user equipment according to the scheduling adjustment group number and the intra-group serial number.

a determining unit, configured to determine, according to the frequency band information of the first scheduling scheme, an information sequence for sending the scheduling adjustment information;

And a third sending unit, configured to send the scheduling adjustment information to the user equipment according to the information sequence.

62. The network device according to claim 61, wherein the determining unit comprises:

a first determining subunit, configured to determine a resource block number of one PRB of the at least one physical resource block PRB included in the frequency band information as the information order; or

a second determining subunit, configured to determine, by the resource block number, a result of modulo the number of bits of the signaling packet carrying the scheduling adjustment information as the information order; or

And a third determining subunit, configured to determine, by the sum of the resource block number and the random number, a result of modulo the number of bits of the signaling packet as the information order.

The network device according to any one of claims 53 to 62, wherein the second receiving module is further configured to: use the same number of layers as the measurement signal on the first frequency band And a precoding matrix or an antenna port, and receiving the uplink data signal sent by the user equipment.

The network device according to any one of claims 53 to 63, wherein the first sending module sends the first time to which the first scheduling scheme belongs, and the first receiving module receives the a second time to which the measurement signal belongs, a third time to which the second transmission module sends the scheduling adjustment information, and a fourth time to which the second receiving module receives the uplink data signal, the first time The time interval between the second time, the second time and the third time, and the third time and the fourth time is equal.

The network device according to any one of claims 53 to 63, wherein the first sending module sends the first time to which the first scheduling scheme belongs, and the first receiving module receives the a second time to which the measurement signal belongs, a third time to which the second transmission module sends the scheduling adjustment information, and a fourth time to which the second receiving module receives the uplink data signal, the first time A transmission time interval ΤΉ is separated between the second time and the third time and the fourth time, and two TTIs are separated between the second time and the third time.

The network device according to claim 64 or 65, wherein the first receiving module is further configured to: at a last or last two symbols of the second moment, and in the The measurement signal sent by the user equipment is received on a first frequency band.

67. A user equipment, comprising:

a receiving module, configured to receive a first scheduling scheme sent by the network device, where the first scheduling manner is used to instruct the user equipment to send an uplink data signal on the first frequency band;

a first sending module, configured to send, according to the first scheduling scheme, a measurement signal to the network device on the first frequency band;

a detecting module, configured to detect the scheduling adjustment information that is sent by the network device according to the measurement signal, and determine, according to a result of detecting the scheduling adjustment information, a second scheduling scheme for sending the uplink data signal;

a second sending module, configured to send the uplink data signal to the network device on the first frequency band according to the second scheduling scheme.

The user equipment according to claim 67, wherein the first sending module comprises:

a first sending unit, configured to send, according to the first scheduling scheme, the measurement signal modulated by a preset sequence to the network device on the first frequency band.

The user equipment according to claim 68, wherein the first sending unit comprises:

a first sending subunit, configured to send, according to the first scheduling scheme, the measurement signal modulated by the preset sequence to the network device on the first frequency band, where the preset sequence belongs The group is the same as the sequence group to which the sequence used for transmitting the sounding reference signal SRS belongs; or the second transmitting subunit is configured to be in the first frequency band according to the first scheduling scheme and the comb information of the network device broadcast notification The measurement signal modulated by the preset sequence is transmitted to the network device.

The user equipment according to any one of claims 67 to 69, wherein the detecting module is further configured to detect the scheduling adjustment information sent by the network device, where the scheduling adjustment information includes a sending power. At least one of information, modulation mode information, and coding rate information; or the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

The user equipment according to any one of claims 67 to 70, wherein the detecting module comprises:

a receiving unit, configured to receive a scheduling adjustment group number sent by the network device, and a sequence number in the group;

The first detecting unit is configured to detect the scheduling adjustment information sent by the network device according to the scheduling adjustment group number and the intra-group serial number.

a determining unit, configured to determine, according to frequency band information of the first scheduling scheme, an information sequence for detecting the scheduling adjustment information;

And a second detecting unit, configured to detect, according to the information order, the scheduling adjustment information sent by the network device.

The user equipment according to claim 72, wherein the determining unit comprises:

a third determining subunit, configured to compare the resource block number with a random number to the signaling packet The result of the modulo of the number of bits is determined as the order of the information.

The user equipment according to any one of claims 67 to 73, wherein the detecting module is further configured to: when the scheduling adjustment information sent by the network device is not detected, The first scheduling scheme is determined to be the second scheduling scheme.

The user equipment according to any one of claims 67 to 74, wherein the second sending module comprises:

a second sending unit, configured to: when the scheduling adjustment information does not include the sending power, according to the second scheduling scheme, send the same transmit power to the measurement signal, and send the network to the network in the first frequency band. The device transmits the uplink data signal.

The user equipment according to any one of claims 67 to 75, wherein the second sending module comprises:

a third sending unit, configured to send, according to the second scheduling scheme, the same number of layers, a precoding matrix, or an antenna port as the measurement signal, to send the uplink data to the network device on the first frequency band. signal.

The user equipment according to any one of claims 67 to 76, wherein, when the receiving module receives the first moment to which the first scheduling scheme belongs, the first sending module sends the measurement a second time to which the signal belongs, the detection module detects a third time to which the scheduling adjustment information belongs, and a fourth time to which the second sending module sends the uplink data signal, the first time and the first time The time interval between the two times, between the second time and the third time, and between the third time and the fourth time is equal.

The user equipment according to any one of claims 67 to 76, wherein, when the receiving module receives the first moment to which the first scheduling scheme belongs, the first sending module sends the measurement a second time to which the signal belongs, the detection module detects a third time to which the scheduling adjustment information belongs, and a fourth time to which the second sending module sends the uplink data signal, the first time and the first time A transmission time interval ΤΉ between the two moments and between the third moment and the fourth moment, and two TTIs are separated between the second moment and the third moment.

The user equipment according to claim 77 or 78, wherein the first sending module is further configured to: on the last or last two symbols of the second moment, according to the A scheduling scheme transmits the measurement signal to the network device on the first frequency band.

80. A network device, comprising:

a first sending module, configured to send a first scheduling scheme to the user equipment, where the first scheduling manner is used to indicate that the user equipment receives the downlink data signal on the first frequency band;

a second sending module, configured to send a measurement signal to the user equipment on the first frequency band, and a receiving module, configured to receive reference scheduling information that is sent by the user equipment according to the measurement signal, and according to the The scheduling adjustment information is used to determine the scheduling adjustment information, where the scheduling adjustment information is used to determine a second scheduling scheme for sending the downlink data signal to the user equipment, and the third sending module is configured to send the scheduling adjustment to the user equipment. And a fourth sending module, configured to send the downlink data signal to the user equipment on the first frequency band according to the second scheduling scheme.

The network device according to claim 80, wherein the second sending module comprises:

And a first sending unit, configured to send, by using the preset sequence, the measurement signal to the user equipment on the first frequency band.

The network device according to claim 81, wherein the first sending unit comprises:

a first sending subunit, configured to send the measurement signal modulated by the preset sequence to the user equipment on the first frequency band, and the sequence group and the transmission channel state information reference signal to which the preset sequence belongs The sequence used by the CSI-RS belongs to the same sequence group.

The network device according to claim 81, wherein the network device further comprises:

a notification module, configured to broadcast, to the user equipment, configuration information for transmitting the measurement signal;

The first sending unit includes:

a second sending subunit, configured to send, according to the configuration information, the measurement signal modulated by the preset sequence to the user equipment on the first frequency band.

The network device according to any one of claims 80 to 83, wherein the third sending module is further configured to send the scheduling adjustment information to the user equipment, where the scheduling adjustment information includes sending At least one of power information, modulation mode information, and coding rate information; or the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

The network device according to any one of claims 80 to 84, characterized in that The third sending module is further configured to send the scheduling adjustment information to the user equipment by using a multicast manner.

The network device according to claim 85, wherein the third sending module comprises:

a second sending unit, configured to send a scheduling adjustment group number and a sequence number in the group to the user equipment;

And a third sending unit, configured to send the scheduling adjustment information to the user equipment according to the scheduling adjustment group number and the intra-group serial number.

And a fourth sending unit, configured to send the scheduling adjustment information to the user equipment according to the information order.

The network device according to claim 87, wherein the determining unit comprises:

The network device according to any one of claims 80 to 88, wherein the fourth sending module comprises:

a fifth sending unit, configured to: when the scheduling adjustment information does not include the sending power, according to the second scheduling scheme, send the same power to the user on the first frequency band with the same sending power as the sending the measurement signal The device transmits the downlink data signal.

The network device according to any one of claims 80 to 89, wherein the fourth sending module comprises:

a sixth sending unit, configured to send, according to the second scheduling scheme, the same number of layers, a precoding matrix or an antenna port as the measurement signal, to the user equipment on the first frequency band Sending the downlink data signal.

The network device according to any one of claims 80 to 90, wherein the first sending module sends the first scheduling scheme or the second sending module sends the measurement signal to which the measurement signal belongs. The first time, the receiving module receives the second time to which the reference scheduling information belongs, the third sending module sends the scheduling adjustment information, or the third time that the fourth sending module sends the downlink data signal to belong to And a time interval between the first time and the second time and between the second time and the third time is equal.

The network device according to claim 91, wherein the first time and the second time are separated by two or four transmission time intervals TTI, the second time and the third time There are two or four TTIs between the moments.

The network device according to any one of claims 80 to 90, wherein the time when the first sending module sends the first scheduling scheme and the second sending module sends the measurement signal The time belongs to the same TTI; the time when the third sending module sends the scheduling adjustment information is the same as the time when the fourth sending module sends the downlink data signal

94. A user equipment, comprising:

a first receiving module, configured to receive a first scheduling scheme that is sent by the network device, where the first scheduling scheme is used to indicate that the user equipment receives the downlink data signal on the first frequency band;

a second receiving module, configured to receive, according to the first scheduling scheme, a measurement signal sent by the network device on the first frequency band;

a sending module, configured to send, to the network device, reference scheduling information determined according to the measurement signal;

a detection module, configured to detect scheduling adjustment information that is sent by the network device according to the reference scheduling information, where the scheduling adjustment information is used to determine a second scheduling scheme that receives the downlink data signal;

And a third receiving module, configured to receive, according to the second scheduling scheme, the downlink data signal sent by the network device on the first frequency band.

The user equipment according to claim 94, wherein the second receiving module comprises:

a first receiving unit, configured to receive, according to the preset sequence and the first scheduling scheme, the measurement signal that is sent by the network device and that is modulated by the preset sequence, on the first frequency band.

The user equipment according to claim 95, wherein the first receiving unit comprises:

a first receiving subunit, configured to receive, according to the sequence group that belongs to the sequence group to which the sequence used by the CSI-RS is to be sent, and the first scheduling scheme, receive the first frequency band The measurement signal that is sent by the network device and modulated by the preset sequence; or the second receiving subunit, configured to: according to the first scheduling scheme and configuration information of the network device broadcast notification, in the first Receiving, by the frequency band, the measurement signal transmitted by the network device and modulated by the preset sequence.

The user equipment according to any one of claims 94 to 96, wherein the detection module is configured to detect the scheduling adjustment information, where the scheduling adjustment information includes transmission power information, modulation mode information, and coding. At least one of rate information; or the scheduling adjustment information includes an adjustment value of a modulation and coding scheme.

The user equipment according to any one of claims 94 to 97, wherein the detecting module comprises:

a second receiving unit, configured to receive a scheduling adjustment group number and a sequence number sent by the network device;

The user equipment according to any one of claims 94 to 98, wherein the detecting module comprises:

The user equipment according to claim 99, wherein the determining unit comprises:

The user equipment according to any one of claims 94 to 100, wherein the third receiving module is further configured to: receive and receive according to the second scheduling scheme on the first frequency band The same number of layers, precoding matrix or antenna port of the measurement signal, and receiving the downlink data signal sent by the network device.

The user equipment according to any one of claims 94 to 101, wherein the first receiving module receives the first scheduling scheme or the second receiving module receives a signal to which the measurement signal belongs. The first time, the sending module sends the second time to which the reference scheduling information belongs, the detecting module detects the scheduling adjustment information, or the third receiving module receives the third time to which the downlink data signal belongs. The time interval between the first time and the second time and between the second time and the third time is equal.

The user equipment according to claim 102, wherein two or four transmission time intervals TTI are separated between the first time and the second time, and the second time and the third time are There are two or four TTIs between the moments.

The user equipment according to any one of claims 94 to 101, wherein the time when the first receiving module receives the first scheduling scheme and the second receiving module receives the measurement signal The time belongs to the same TTI; the time when the detection module detects the scheduling adjustment information and the time when the third receiving module receives the downlink data signal belong to the same TTI.