WO2016107430A1

WO2016107430A1 - Method and device for transferring uplink data

Info

Publication number: WO2016107430A1
Application number: PCT/CN2015/097993
Authority: WO
Inventors: 唐浩; 唐臻飞
Original assignee: 华为技术有限公司
Priority date: 2014-12-31
Filing date: 2015-12-21
Publication date: 2016-07-07
Also published as: CN105812106B; CN105812106A

Abstract

Provided are a method and device for transferring uplink data, the method comprising: a network apparatus determines, from a first mapping mode and a second mapping mode, a target mapping mode; the network apparatus transmits, to a first terminal apparatus, information indicating the target mapping mode; the network apparatus receives a first demodulation reference signal and a first data signal generated by the first terminal apparatus performing resource mapping according to the target mapping mode; in the first mapping mode, a number of subcarriers mapped by the data signal is different from that of subcarriers mapped by the demodulation reference signal, the data signal being mapped to subcarriers of an integer multiple of N, the demodulation reference signal being mapped to subcarriers with an integer multiple being 12, and N being any one of the following numerical values: 2, 3, 4 or 6; and in the second mapping mode, the number and positions of the subcarriers mapped by the data signal and the demodulation reference signal are the same, and the data signal and the demodulation reference signal are mapped to subcarriers with an integer multiple being 12.

Description

Method and device for transmitting uplink data

The present application claims priority to Chinese Patent Application No. 201410854472.3, entitled "Method and Apparatus for Transmitting Upstream Data," filed on Dec. 31, 2014, the entire disclosure of which is incorporated herein by reference. .

Technical field

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

Background technique

At present, a technique for transmitting uplink data is known, which carries a demodulation reference signal and a data signal in units of 12 consecutive subcarriers. For example, if the uplink data is small, there is a case where the data signal of the meaningful meaning transmitted by the terminal device does not need to occupy all 12 subcarriers.

However, in this case, in the prior art, the data signal is still carried in units of 12 consecutive subcarriers, for example, the terminal device still occupies a subcarrier that does not need to carry the above-mentioned meaningful data signal, and is in the subcarrier. The preset symbol is filled, and the part of the symbol increases the burden on the terminal device, causing interference to other terminal devices, and causing waste of uplink transmission frequency domain resources, which seriously affects the performance of the communication system.

Summary of the invention

Embodiments of the present invention provide a method and apparatus for transmitting uplink data, which can improve performance of a communication system.

In a first aspect, a method for transmitting uplink data is provided, which is applied to a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which a subcarrier to which a data signal is mapped is mapped The number of subcarriers to which the demodulation reference signal is mapped is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of N On one subcarrier, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4 or 6, in the second mapping mode, the data signal and the demodulation reference signal The number and location of the mapped subcarriers are the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, the method comprising: the network device from the first mapping mode and the second mapping mode , determining the target mapping mode; the network The network device sends, to the first terminal device, information for indicating the target mapping mode; the network device receives the first demodulation reference signal and the first data signal that are generated after the first terminal device performs resource mapping processing according to the target mapping mode. The first demodulation reference signal corresponds to W subcarriers, and the first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12.

With reference to the first aspect, in a first implementation manner of the first aspect, if the target mapping mode is the first mapping mode, T<W, and the method further includes: sending, by the network device, the first terminal device And information for indicating the first cyclic offset value, so that the first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value to generate the first demodulation reference signal.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the method further includes: the network device sending, to the second terminal device, information indicating the first mapping mode; the network device Sending, to the second terminal device, information indicating a second cyclic offset value, the first cyclic offset value being different from the second cyclic offset value; the network device receiving the second data sent by the second terminal device a signal and a second demodulation reference signal, where the second data signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode, where the second data signal includes the T sub-carriers a signal component corresponding to a subcarrier other than the carrier, where the second demodulation reference signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode and the second cyclic offset value, the first solution The tone reference signal overlaps the second demodulation reference signal.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal, The first time slot of the subframe is the same as the second time slot, and in the first time slot, the T subcarriers include subcarriers located at the first location among the W subcarriers, where the second time slot The T subcarriers include subcarriers located at the second location among the W subcarriers, and the first location is different from the second location.

With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, if the target mapping mode is the first mapping mode, the W subcarriers are carrying the first demodulation reference signal. The positions in the first time slot and the second time slot of the second subframe are different.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, if the target mapping mode is the first mapping mode, T<W, and the first data signal is the first terminal The data signal obtained after the power amplification processing is performed by the device based on the first power control factor α ₁ , where the first demodulation reference signal is a demodulation reference obtained by the first terminal device performing power amplification processing based on the second power control factor α ₂ Signal, where α ₂ = T/W·α ₁ .

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the method further includes: the network device sending, to the first terminal device, the first power control factor α ₁ or the The second power control factor α ₂ information.

With reference to the first aspect and the foregoing implementation manner, in the seventh implementation manner of the first aspect, in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to each time The subcarrier corresponding to the symbol of the sequence number 0, 1, 2, 4, 5, 6 in the slot, the subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence 3 in each slot Or in the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, 5 in each slot, The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.

With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the network device determines the target mapping mode from the first mapping mode and the second mapping mode, including: the network device is configured according to the first terminal Determining, by the first mapping mode and the second mapping mode, the target mapping mode, where the first data signal is the first terminal device, according to the target mapping mode, the first The uplink data is generated after resource mapping processing.

With reference to the first aspect and the foregoing implementation manner, in a ninth implementation manner of the first aspect, the network device is configured to use the first mapping mode and the second mapping mode according to the size of the first uplink data that the first terminal device needs to transmit. Determining the target mapping mode, the network device determining, according to the size of the first uplink data, the number M of subcarriers required to transmit the first uplink data; when M≤N, determining, by the network device, the first mapping The mode is the target mapping mode; or when M>N, and 12·(i-1)<M≤12i-N, the network device determines to use the first mapping mode as the target mapping mode, and i is a positive integer.

In conjunction with the first aspect and the foregoing implementation manner, in the tenth implementation manner of the first aspect, the first data signal is a data signal of an enhanced voice service EVS service. In a second aspect, a method for transmitting uplink data is provided, which is applied to a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the subcarriers to which the data signal is mapped are mapped. The number of subcarriers to which the demodulation reference signal is mapped is different, and the subcarrier to which the data signal is mapped belongs to the subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to N. On an integer multiple of subcarriers, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4 or 6, in the second mapping mode, the data signal and the demodulation reference And the number of subcarriers to which the signal is mapped is the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, the method includes: receiving, by the first terminal device, the network device to indicate the target a mapping mode information, the target mapping mode is determined by the network device from the first mapping mode and the second mapping mode; the first terminal device performs resource mapping processing according to the target mapping mode to generate a first demodulation a reference signal and a first data signal, wherein the first demodulation reference signal corresponds to W subcarriers, the first data signal corresponding to T subcarriers of the W subcarriers, and W is an integer multiple of 12; The first terminal device sends the first demodulation reference signal and the first data signal to the network device.

With reference to the second aspect, in a first implementation manner of the second aspect, if the target mapping mode is the first mapping mode, T<W, and the method further includes: the first terminal device receiving the network device to send The information indicating the first cyclic offset value; and the first terminal device performing resource mapping processing according to the target mapping mode, including: the first terminal device according to the first mapping mode and the first cyclic offset value , resource mapping processing.

With reference to the second aspect and the foregoing implementation manner, in a second implementation manner of the second aspect, the first loop offset value is different from the second loop offset value, where the second loop offset value is the network device a cyclic offset value sent to the second terminal device, where the second data signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode includes subcarriers other than the T subcarriers among the W subcarriers And corresponding to the signal component, the second demodulation reference signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode and the second cyclic offset value overlaps with the first demodulation reference signal.

With reference to the second aspect and the foregoing implementation manner, in a third implementation manner of the second aspect, if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal, The first time slot of the subframe is the same as the second time slot, and in the first time slot, the T subcarriers include subcarriers located at the first location among the W subcarriers, where the second time slot The T subcarriers include subcarriers located at the second location among the W subcarriers, and the first location is different from the second location.

With reference to the second aspect and the foregoing implementation manner, in a fourth implementation manner of the second aspect, if the target mapping mode is the first mapping mode, the W subcarriers are carrying the first demodulation reference signal. The positions in the first time slot and the second time slot of the second subframe are different.

With reference to the second aspect and the foregoing implementation manner, in a fifth implementation manner of the second aspect, if the target mapping mode is the first mapping mode, T<W, and the first terminal device is in the network device before transmitting the first demodulation reference signal and a first data signal, the method further comprising: a first terminal of the power amplification device for a first process based on the power control factor α ₁ a first data signal; the first terminal device The first demodulation reference signal is subjected to power amplification processing based on the second power control factor α ₂ , where α ₂ =T/W·α ₁ .

With reference to the second aspect and the foregoing implementation manner, in a sixth implementation manner of the second aspect, the method further includes: the first terminal device receiving, by the network device, the first power control factor α ₁ or The second power control factor α ₂ information.

With reference to the second aspect and the foregoing implementation manner, in the seventh implementation manner of the second aspect, in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to each time The subcarrier corresponding to the symbol of the sequence number 0, 1, 2, 4, 5, 6 in the slot, the subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence 3 in each slot Or in the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, 5 in each slot, The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.

In conjunction with the second aspect and the foregoing implementation manner, in an eighth implementation manner of the second aspect, the first data signal is a data signal of an enhanced voice service EVS service.

In a third aspect, an apparatus for transmitting uplink data is provided, where a communication system configured to perform resource mapping processing using a first mapping mode or a second mapping mode, where subcarriers to which data signals are mapped is provided The number of subcarriers to which the demodulation reference signal is mapped is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of N On one subcarrier, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4 or 6, in the second mapping mode, the data signal and the demodulation reference signal The number and location of the mapped subcarriers are the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, the apparatus comprising: a determining unit, configured to use the first mapping mode and the second a mapping mode, the target mapping mode is determined; the sending unit is configured to send information indicating the target mapping mode to the first terminal device, and the receiving unit is configured to receive the first terminal a first demodulation reference signal and a first data signal generated by the end device according to the target mapping mode, where the first demodulation reference signal corresponds to W subcarriers, and the first data signal and the W Corresponding to T subcarriers in each subcarrier, W is an integer multiple of 12.

With reference to the third aspect, in a first implementation manner of the third aspect, if the target mapping mode is the first mapping mode, T<W, the sending unit is further configured to send, to the first terminal device, an indication. The information of the first cyclic offset value is such that the first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value to generate the first demodulation reference signal.

With the third aspect and the foregoing implementation manner, in a second implementation manner of the third aspect, the sending unit is further configured to send, to the second terminal device, information for indicating the first mapping mode, and The information of the cyclic offset value, the first cyclic offset value is different from the second cyclic offset value; the receiving unit is further configured to receive the second data signal and the second demodulation reference signal sent by the second terminal device The second data signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode, where the second data signal includes a subcarrier corresponding to the T subcarriers of the W subcarriers. a signal component, the second demodulation reference signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode and the second cyclic offset value, the first demodulation reference signal and the second solution The reference signal overlaps.

With reference to the third aspect and the foregoing implementation manner, in a third implementation manner of the third aspect, if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal, The first time slot of the subframe is the same as the second time slot, and in the first time slot, the T subcarriers include subcarriers located at the first location among the W subcarriers, where the second time slot The T subcarriers include subcarriers located at the second location among the W subcarriers, and the first location is different from the second location.

With reference to the third aspect and the foregoing implementation manner, in a fourth implementation manner of the third aspect, if the target mapping mode is the first mapping mode, the W subcarriers are carrying the first demodulation reference signal. The positions in the first time slot and the second time slot of the second subframe are different.

With reference to the third aspect and the foregoing implementation manner, in a fifth implementation manner of the third aspect, if the target mapping mode is the first mapping mode, T<W, and the first data signal is the first terminal The data signal obtained after the power amplification processing is performed by the device based on the first power control factor α ₁ , where the first demodulation reference signal is a demodulation reference obtained by the first terminal device performing power amplification processing based on the second power control factor α ₂ Signal, where α ₂ = T/W·α ₁ .

With the third aspect and the foregoing implementation manner, in a sixth implementation manner of the third aspect, the sending unit is further configured to send, to the first terminal device, the first power control factor α ₁ or the second Information on the power control factor α ₂ .

With reference to the third aspect and the foregoing implementation manner, in the seventh implementation manner of the third aspect, in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to each time The subcarrier corresponding to the symbol of the sequence number 0, 1, 2, 4, 5, 6 in the slot, the subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence 3 in each slot Or in the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, 5 in each slot, The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.

With reference to the third aspect and the foregoing implementation manner, in the eighth implementation manner of the third aspect, the determining unit is specifically configured to: according to the size of the first uplink data that needs to be transmitted by the first terminal device, from the first mapping mode and the first In the second mapping mode, the target mapping mode is determined, wherein the first data signal is generated by the first terminal device performing resource mapping processing on the first uplink data according to the target mapping mode.

With reference to the third aspect and the foregoing implementation manner, in the ninth implementation manner of the third aspect, the determining unit is specifically configured to determine, according to the size of the first uplink data, the number of subcarriers required to transmit the first uplink data. When M≤N, it is determined to use the first mapping mode as the target mapping mode; or when M>N, and 12·(i-1)<M≤12i-N, it is determined to use the first mapping mode as The target mapping mode, i is a positive integer.

With reference to the third aspect and the foregoing implementation manner, in the tenth implementation manner of the third aspect, the first data signal is a data signal of an enhanced voice service EVS service.

A fourth aspect provides an apparatus for transmitting uplink data, where a communication system configured to perform resource mapping processing using a first mapping mode or a second mapping mode, in which the data signal is mapped to a subcarrier The number of subcarriers to which the demodulation reference signal is mapped is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of N On one subcarrier, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4 or 6, in the second mapping mode, the data signal and the demodulation reference signal The number and location of the subcarriers to be mapped are the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, and the apparatus includes: a receiving unit, configured to receive, by the network device, the target mapping Information of the mode, the target mapping mode is determined by the network device from the first mapping mode and the second mapping mode; a mapping unit configured to map according to the target Performing resource mapping processing to generate a first demodulation reference signal and a first data signal, wherein the first demodulation reference signal corresponds to W subcarriers, The first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12; the sending unit is configured to send the first demodulation reference signal and the first data signal to the network device.

With reference to the fourth aspect, in a first implementation manner of the fourth aspect, if the target mapping mode is the first mapping mode, T<W, the receiving unit is further configured to receive, by the network device, an indication Information of a cyclic offset value; and the mapping unit is specifically configured to perform resource mapping processing according to the first mapping mode and the first cyclic offset value.

With reference to the fourth aspect and the foregoing implementation manner, in a second implementation manner of the fourth aspect, the first loop offset value is different from the second loop offset value, where the second loop offset value is the network device a cyclic offset value sent to the second terminal device, where the second data signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode includes subcarriers other than the T subcarriers among the W subcarriers And corresponding to the signal component, the second demodulation reference signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode and the second cyclic offset value overlaps with the first demodulation reference signal.

With reference to the fourth aspect and the foregoing implementation manner, in a third implementation manner of the fourth aspect, if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal, The first time slot of the subframe is the same as the second time slot, and in the first time slot, the T subcarriers include subcarriers located at the first location among the W subcarriers, where the second time slot The T subcarriers include subcarriers located at the second location among the W subcarriers, and the first location is different from the second location.

With reference to the fourth aspect and the foregoing implementation manner, in a fourth implementation manner of the fourth aspect, if the target mapping mode is the first mapping mode, the W subcarriers are carrying the first demodulation reference signal. The positions in the first time slot and the second time slot of the second subframe are different.

With reference to the fourth aspect and the foregoing implementation manner, in a fifth implementation manner of the fourth aspect, if the target mapping mode is the first mapping mode, T<W, the sending unit is further configured to perform, based on the first power control The factor α ₁ performs power amplification processing on the first data signal, and performs power amplification processing on the first demodulation reference signal based on the second power control factor α ₂ , where α ₂ =T/W·α ₁ .

With reference to the fourth aspect and the foregoing implementation manner, in a sixth implementation manner of the fourth aspect, the receiving unit is further configured to receive, by the network device, the first power control factor α ₁ or the second power Control factor α ₂ information.

With reference to the fourth aspect and the foregoing implementation manner, in the seventh implementation manner of the fourth aspect, In the first mapping mode, when the normal cyclic prefix CP is used, the mapping unit is specifically configured to correspond to the symbols with the sequence numbers 0, 1, 2, 4, 5, and 6 in each time slot to which the data signal is mapped. a T subcarrier, the demodulation reference signal is mapped to W subcarriers corresponding to the symbol of sequence number 3 in each slot; or in the first mapping mode, when the CP is extended, the mapping unit is specifically used to The data signal is mapped to T subcarriers corresponding to the symbols of the sequence numbers 0, 1, 3, 4, and 5 in each slot, and the subcarriers to which the demodulation reference signal is mapped belong to the sequence number 2 in each slot. W subcarriers corresponding to the symbol.

With reference to the fourth aspect and the foregoing implementation manner, in an eighth implementation manner of the fourth aspect, the first data signal is a data signal of an enhanced voice service EVS service.

A method and apparatus for transmitting uplink data according to an embodiment of the present invention, in a first mapping mode, a number of subcarriers to which a data signal is mapped is different from a number of subcarriers to which a demodulation reference signal is mapped, and The subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to an integer multiple of 12 subcarriers In the above, N is any of the following values: 2, 3, 4 or 6, which can support resource mapping processing for data in units of less than 12 subcarriers, so that the terminal device can reduce the terminal without occupying redundant subcarriers. The burden on the device reduces the interference to other terminal devices and the waste of uplink transmission frequency domain resources, and improves the performance of the communication system.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of a communication system to which a method of transmitting uplink data according to the present invention is applied.

FIG. 2 is a schematic diagram of a time-frequency resource division manner according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of a minimum unit of uplink resource allocation in a second mapping mode according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a minimum unit of uplink resource allocation in a first mapping mode according to an embodiment of the present invention.

FIG. 5 is a schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

6 is a method for transmitting uplink data according to an embodiment of the present invention, performing resource mapping processing A schematic diagram of the demodulated reference signal and the data signal.

FIG. 7 is another schematic diagram of a demodulation reference signal and a data signal obtained by performing resource mapping processing by a method of transmitting uplink data according to an embodiment of the present invention.

FIG. 8 is a schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.

FIG. 9 is a schematic structural diagram of an apparatus for transmitting uplink data according to an embodiment of the present invention.

FIG. 10 is a schematic structural diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.

FIG. 11 is a schematic structural diagram of an apparatus for transmitting uplink data according to an embodiment of the present invention.

FIG. 12 is a schematic structural diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.

detailed description

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

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.

The present invention describes various embodiments in connection with a terminal device. The terminal device may also be referred to as a User Equipment (UE) user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device. The access terminal may be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), and a wireless communication. Functional handheld device, computing device, or other processing device connected to a wireless modem, In-vehicle devices, wearable devices, and terminal devices in future 5G networks.

Moreover, the present invention describes various embodiments in connection with a network device. The network device may be a device that is configured to be in communication with the mobile device, and the network device may be an eNB or an eNodeB (Evolved Node B) in an LTE (Long Term Evolution), or a relay station or Access points, or in-vehicle devices, wearable devices, and devices on the network side in future 5G networks.

Furthermore, various aspects or features of the present invention can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (for example, a hard disk, a floppy disk, or a magnetic tape), and an optical disk (for example, a CD (Compact Disk), a DVD (Digital Versatile Disk). Etc.), smart cards and flash memory devices (eg, EPROM (Erasable Programmable Read-Only Memory), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

1 is a schematic diagram of a communication system using the method of data processing of the present invention. As shown in FIG. 1, the communication system 100 includes a network device 102, which may include multiple antenna groups. Each antenna group may include multiple antennas, for example, one antenna group may include

antennas

104 and 106, another antenna group may include

antennas

108 and 110, and an additional group may include

antennas

112 and 114. Two antennas are shown in Figure 1 for each antenna group, although more or fewer antennas may be used for each group. Network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer, solution) Tuner, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to

terminal device

116 or 122.

Terminal devices

116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.

As shown in FIG. 1, terminal device 116 is in communication with

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over forward link 118 and from the terminal through reverse link 120. The device 116 receives the information. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a Frequency Division Duplex (FDD) system, for example, the forward link 118 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link. 126 different frequency bands used.

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

Each set of antennas and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. In the process in which network device 102 communicates with

terminal devices

116 and 122 via

forward links

118 and 124, respectively, the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of

forward links

118 and 124. In addition, when the network device 102 uses beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data, which may be segmented to generate a plurality of code blocks that are processed by bit mapping to generate data signals (ie, modulation symbols). .

Moreover, a demodulation reference signal (or may also be referred to as a reference signal) may also be transmitted between the network device 102 and the terminal device 16 or the terminal device 122 for channel estimation.

The above data signal and the demodulation reference signal are transmitted through time-frequency resources provided by the communication system.

FIG. 2 is a schematic diagram of a time-frequency resource division manner according to an embodiment of the present invention. As shown in FIG. 2, in the time domain, a radio frame has a length of 10 ms, includes 10 subframes, each subframe has a length of 1 ms, and each subframe includes 2 slots, and uses a normal cyclic prefix (CP, Cyclic). In the case of Prefix), each time slot contains 7 symbols, and in the case of using an extended cyclic prefix, each time slot contains 6 symbols.

Moreover, as shown in FIG. 2, in the frequency domain, the frequency domain resource provided by the communication system includes multiple subcarriers, and one subcarrier under one symbol is called a resource element (RE, Resource Element).

A method for transmitting uplink data according to an embodiment of the present invention is applied to a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the number of subcarriers to which a data signal is mapped is Different from the number of subcarriers to which the demodulation reference signal is mapped, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N The demodulation reference signal is mapped to an integer multiple of 12 subcarriers, where N is any of the following values: 2, 3, 4, or 6. In the second mapping mode, the data signal and the demodulation reference signal are mapped to The number and location of the subcarriers are the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers.

Next, the uplink resource mapping in the first mapping mode and the second mapping mode will be described separately.

A. Second mapping mode

Specifically, in the second mapping mode, the minimum unit of the uplink resource allocation of the communication system is a first type of resource block (RB, Resource Block). Hereinafter, in order to facilitate understanding and distinction, it is recorded as RB#1, or In the second mapping mode, the resources occupied by the uplink resource allocation data and the demodulation reference signal (including the symbols in the time domain and the subcarriers in the frequency domain) are all integers of the foregoing RB#1. Times,. FIG. 3 is a schematic diagram of a minimum unit of uplink resource allocation in a second mapping mode according to an embodiment of the present invention. As shown in FIG. 3, for example, in a normal CP, one RB#1 includes 12 consecutive subcarriers and 1 12 x 7 REs of time slots.

On RB#1, the data signal and the reference signal can be carried, and the minimum unit (or unit) for the uplink resource allocation of the data signal and the reference signal is the same.

As shown in FIG. 3, the data signal is mapped to an RE of RB#1 with the number (k, l ₁ ), where k represents the sequence number of the subcarrier occupied in the frequency domain, and l ₁ represents the occupation in the time domain. The serial number of the symbol, l ₁ =0, 1, ₂ , 4, 5, ₆ (when a normal CP is used) or l ₁ =0, _1, 3, 4, 5 (when an extended CP is used).

And, the demodulation reference signal is mapped to the RE of the same RB#1 numbered (k, l ₂ ), where l ₂ = 3 (when a normal CP is used) or l ₂ = 2 (when an extended CP is used).

When the network device allocates n RB#1s for the terminal device, the number of subcarriers occupied by the data signal and the demodulation reference signal in the frequency domain is 12n (ie, an integer multiple of 12), that is, k=0, . . . , 12n -1. For example, FIG. 3 shows the case when n=1.

B. First mapping mode

Specifically, in the first mapping mode, the minimum unit (or unit) of the resource mapping of the data signal and the demodulation reference signal is different.

For the demodulation reference signal, the minimum unit of uplink resource allocation of the communication system is 12×1 REs corresponding to 12 consecutive subcarriers and 1 symbol. Hereinafter, in order to facilitate understanding and distinction, it is recorded as RB#2, or In the first mapping mode, the resources occupied by the demodulation reference signals after the uplink resource allocation (including the symbols in the time domain and the subcarriers in the frequency domain) are all integer multiples of the foregoing RB#2.

Under the normal CP, for the data signal, the minimum unit of the uplink resource allocation of the communication system is N×6 REs corresponding to N consecutive subcarriers and 6 symbols. Hereinafter, in order to facilitate understanding and distinction, it is recorded as RB#3. In the first mapping mode, the resources occupied by the data signals after the uplink resource allocation (including the symbols in the time domain and the subcarriers in the frequency domain) are all integer multiples of the foregoing RB#3. The value of N may be 2, 3, 4 or 6, and may be selected according to the needs of the system, as long as the network device and the terminal device are selected to have the same N. Hereinafter, for ease of understanding and explanation, N =6 is an example for explanation.

In addition, in the embodiment of the present invention, the minimum unit of uplink resource allocation of the demodulation reference signal in the first mapping mode may be the same as the minimum unit of uplink resource allocation of the demodulation reference signal in the second mapping mode, The minimum unit of uplink resource allocation of the data signal in the first mapping mode is different from the minimum unit of uplink resource allocation of the data signal in the second mapping mode.

Next, the positional relationship between RB#2 and RB#3 will be described with reference to FIG.

4 is a schematic diagram of a minimum unit of uplink resource allocation in a first mapping mode according to an embodiment of the present invention, and in the embodiment shown in FIG. 4, N=6.

Optionally, in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to a symbol with a sequence number of 0, 1, 2, 4, 5, and 6 in each slot. For the corresponding subcarrier, the subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 3 in each slot.

Specifically, as shown in FIG. 4, the positional relationship between the foregoing RB#2 and RB#3 in the time domain and the resource unit carrying the demodulation reference signal and the resource unit carrying the data signal in the RB#1 are in the time domain. The positional relationship is similar, that is, under normal CP, RB#3 occupies the first 3 and last 3 symbols of each time slot in the time domain (ie, the sequence number is 0, 1, 2, 4 in each time slot). 5, 6 symbols), RB#2 occupies the 4th symbol of each time slot in the time domain (ie, the symbol numbered 3 in each time slot).

Figure 4 shows the positional relationship of RB#2 and RB#3 in the frequency domain under normal CP, that is, in positive Under the normal CP, the subcarrier occupied by RB#3 belongs to the subcarrier occupied by RB#2. When N=6, RB#3 occupies 6 consecutive subcarriers in the frequency domain, and RB#2 occupies 12 consecutive subcarriers in the frequency domain. Moreover, the carrier occupied by RB#3 belongs to the carrier occupied by RB#2. For example, in the communication system, if the starting sequence number of the subcarrier occupied by one RB#2 is 12n, the RB#2 corresponds to The starting sequence number of the occupied subcarrier of RB#3 is 12n or 12n+6, and n is a positive integer.

Since one RB#3 occupies 6 subcarriers, one RB#1 can be split into two RB#3 (hereinafter, RB#3A and RB#3B are categorized for convenience of distinction) and one RB#2. Therefore, in the embodiment of the present invention, two terminal devices can transmit data signals by using RB#3A and RB#3B, respectively, and the two terminal devices can share the RB#2 transmission demodulation reference signal, in this case, the network The device may allocate different cyclic shifts for the two terminal devices in the downlink control information (DCI) such that the two demodulation reference signals are orthogonal on RB#2. Subsequently, the process will be described in detail.

Similarly, when N=3, one RB#3 occupies 3 subcarriers, and therefore, one RB#1 can be split into 4 RB#3 and one RB#2. Therefore, in the embodiment of the present invention, four terminal devices can respectively transmit data signals by using the above four RB#3, and the four terminal devices can share the RB#2 transmission demodulation reference signal, in this case, the network device. The above four terminal devices can be assigned different cyclic offsets such that the four demodulation reference signals are orthogonal on RB#2.

When N=4, one RB#3 occupies 4 subcarriers, and therefore, one RB#1 can be split into 3 RB#3 and one RB#2. Therefore, in the embodiment of the present invention, the three terminal devices can respectively transmit the data signals by using the above three RB#3, and the three terminal devices can share the RB#2 transmission demodulation reference signal, in this case, the network device. The above three terminal devices can be assigned different cyclic offsets so that the three demodulation reference signals are orthogonal on RB#2.

It should be noted that, in the embodiment of the present invention, the sequence used for demodulating the reference signal may be any sequence of length 12, for example, a ZC sequence.

In addition, in the embodiment of the present invention, the network device may negotiate the specific value of N in the first mapping mode with each terminal device, or the high-level signaling may also notify the network device and each terminal device of the specific value of N, and thus, the network The device can be processed with the same N value as each terminal device.

It should be understood that, under the normal CP shown in FIG. 4, the positional relationship between RB#2 and RB#3 in the time domain is merely exemplary, and the present invention is not limited thereto, for example, under the extended CP, for the data signal. The smallest unit of uplink resource allocation of the communication system is N×5 REs corresponding to N consecutive subcarriers and 5 symbols, for example, in this case, RB#3 occupies the first 2 of each time slot in the time domain. And after 3 The symbols, RB#4, occupy the third symbol of each time slot in the time domain.

That is, in the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to the subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.

The uplink resource allocation situation in the first mapping mode and the second mapping mode is described above. The method for transmitting uplink data according to an embodiment of the present invention is described in detail below with reference to FIG. 5 to FIG. 7.

FIG. 5 is a schematic flowchart of a method 200 for transmitting uplink data according to an embodiment of the present invention, as shown in FIG. 5. The method 200 includes:

S210. The network device determines, according to the first mapping mode and the second mapping mode, a target mapping mode.

S220. The network device sends, to the first terminal device, information used to indicate the target mapping mode.

S230, the network device receives a first demodulation reference signal and a first data signal that are generated by the first terminal device performing resource mapping processing according to the target mapping mode, where the first demodulation reference signal corresponds to W subcarriers. The first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12;

Optionally, the network device determines the target mapping mode from the first mapping mode and the second mapping mode, including:

The network device determines, according to the size of the first uplink data that the first terminal device needs to transmit, the first mapping mode and the second mapping mode, where the first data signal is the first terminal device according to the target The mapping mode is generated after performing resource mapping processing on the first uplink data.

Specifically, the network device can learn the uplink data that the terminal device #1 (that is, an example of the first terminal device) needs to transmit during the upcoming uplink data transmission period (hereinafter, for the purpose of understanding and explanation, the uplink data is recorded. The size of #1) (for example, the number of bytes included in the upstream data). Moreover, the process can be similar to the prior art, and a detailed description thereof will be omitted herein to avoid redundancy.

Therefore, the network device can determine a mapping mode for uplink transmission of the terminal device #1 from the first mapping mode and the second mapping mode according to the size of the uplink data #1 as the target mapping mode.

Optionally, the first data signal is a data signal of an enhanced voice service EVS service.

Specifically, Enhanced Voice Service (EVS) has been determined. As a next-generation speech coding scheme, the size of data packets transmitted by EVS in an air interface in a typical scenario is much smaller than that of a conventional AMR data packet.

Therefore, if the uplink data #1 is a small data packet such as an enhanced voice service (EVS) voice data packet, only a few subcarriers are needed to complete the transmission of the uplink data #1, and therefore, the network device The first mapping mode can be selected as the above-described target mapping mode.

It should be noted that the foregoing EVS service is only an exemplary description of a service with a small data packet, and the present invention is not limited thereto. Other services with smaller data packets can use the first mapping mode for resource mapping. deal with.

For example, if the uplink data #1 is a large data packet such as a video service, more subcarriers are needed to complete the transmission of the uplink data #1. Therefore, the network device can select the second mapping mode as the target mapping. mode.

It should be understood that the methods and procedures for determining the target mapping mode by the network device enumerated above are merely exemplary, and the present invention is not limited thereto. For example, the network device may also determine the channel quality between the network device and the terminal device #1. If the channel quality is good, the terminal device #1 can encode the uplink data by using a high-order modulation and coding method, so that the generated code block is small, and only a few sub-carriers are needed to complete the transmission of the uplink data #1. In this case, the network device can select the first mapping mode as the target mapping mode described above.

In the embodiment of the present invention, in a case where the service to which the uplink data #1 belongs belongs to a packet transmission service such as an EVS service, the network device may further determine the number of subcarriers occupied by the uplink data #1, thereby determining the need. The number of the above RB#3 assigned to it.

Optionally, the determining, by the network device, the target mapping mode from the first mapping mode and the second mapping mode according to the size of the first uplink data that the first terminal device needs to transmit, including:

The network device determines, according to the size of the first uplink data, the number M of subcarriers required to transmit the first uplink data;

When M≤N, the network device determines to use the first mapping mode as the target mapping mode; or

When M>N, and 12·(i-1)<M≤12i-N, the network device determines to use the first mapping mode as the target mapping mode, and i is a positive integer.

Specifically, when N=6, the number M of subcarriers occupied by the uplink data #1 is less than or equal to 6, and only one RB#3 is needed to complete the transmission of the uplink data #1, and therefore, the network device can determine The above first mapping mode is taken as the target mapping mode for the terminal device #1.

Similarly, when N=4, the number of subcarriers M occupied by the uplink data #1 is less than or equal to 4, only one RB#3 is needed to complete the transmission of the uplink data #1, and therefore, the network device can determine that The first mapping mode described above is a target mapping mode for the terminal device #1.

When N=3, the number of subcarriers M occupied by the uplink data #1 is less than or equal to 3, and only one RB#3 is needed to complete the transmission of the uplink data #1. Therefore, the network device can determine that the first The mapping mode is used as the target mapping mode for the terminal device #1.

When N=2, the number of subcarriers M occupied by the uplink data #1 is less than or equal to 2, and only one RB#3 is needed to complete the transmission of the uplink data #1. Therefore, the network device can determine that the first The mapping mode is used as the target mapping mode for the terminal device #1.

For another example, when N=6, if the number of subcarriers M occupied by the uplink data #1 is greater than 6, and an even number of RB#3s are required to complete the transmission of the uplink data #1, the number of required frequency domain resources is required. Still being an integer multiple of RB#1, in this case, the network device can determine to use the second mapping mode as the target mapping mode for the terminal device #1.

On the other hand, when N=6, if the number M of subcarriers occupied by the uplink data #1 is greater than 12, and an odd number of RB#3 is required, the transmission of the uplink data #1 can be completed (ie, M>N, and M =12i+6), the number of required frequency domain resources is not an integer multiple of RB#1. In this case, the network device can determine that the first mapping mode is the target mapping mode for the terminal device #1.

For example, when N=3, if the number of subcarriers M occupied by the uplink data #1 is greater than 3, and an integer multiple of 4 RB#3 is required to complete the transmission of the uplink data #1, the required frequency domain is needed. The number of resources is still an integer multiple of RB#1, in which case the network device can determine to use the second mapping mode as the target mapping mode for terminal device #1.

On the other hand, when N=3, if the number M of subcarriers occupied by the uplink data #1 is greater than 3, and an integer multiple of RB#3 other than 4 is required, the transmission of the uplink data #1 can be completed (ie, M>). N, and M=12i+6 or M=12i+9), the number of required frequency domain resources is not an integer multiple of RB#1. In this case, the network device may determine that the first mapping mode is used as the terminal. Target mapping mode for device #1.

For example, when N=4, if the number M of subcarriers occupied by the uplink data #1 is greater than 4, and an integer multiple of 3 RB#3 is required to complete the transmission of the uplink data #1, the required frequency domain is needed. The number of resources is still an integer multiple of RB#1, in which case the network device can determine to use the second mapping mode as the target mapping mode for terminal device #1.

On the other hand, when N=4, if the number M of subcarriers occupied by the uplink data #1 is greater than 4, If the RB#3 that is not a multiple of 3 is required to complete the transmission of the uplink data #1, the number of required frequency domain resources is not an integer multiple of RB#1 (ie, M>N, and M=12i+4). Or M=12i+8), in which case the network device can determine to use the first mapping mode as the target mapping mode for the terminal device #1.

For example, when N=2, if the number of subcarriers M occupied by the uplink data #1 is greater than 2, and an integer multiple of 6 RB#3 is required to complete the transmission of the uplink data #1, the required frequency domain is needed. The number of resources is still an integer multiple of RB#1, in which case the network device can determine to use the second mapping mode as the target mapping mode for terminal device #1.

On the other hand, when N=2, if the number M of subcarriers occupied by the uplink data #1 is greater than 2, and an integer multiple of RB#3 other than 6 is required, the transmission of the uplink data #1 can be completed (ie, M>). N, and M=12i+2, M=12i+4, M=12i+6, M=12i+8 or M=12i+10), then the number of required frequency domain resources is not an integer multiple of RB#1 In this case, the network device may determine to use the first mapping mode as the target mapping mode for the terminal device #1.

After determining the target mapping mode for the terminal device #1 as described above, the network device may transmit indication information indicating the target mapping mode to the terminal device #1 (hereinafter, for convenience of understanding and distinction, the indication information is recorded as # 1).

In the embodiment of the present invention, a mapping relationship between two identifiers and two mapping modes may be pre-stored in the terminal device and the network device. For example, 1 may correspond to the first mapping mode, and 0 may be associated with the second mapping mode. Corresponding. Therefore, the network device can identify that the target mapping mode selected by the network device is the first by setting a bit (or an identifier bit) corresponding to the indication information #1 carried in the message sent to the terminal device #1. Mapping mode, and the network device can identify the target mapping mode selected by the network device by setting the bit (or the flag bit) corresponding to the indication information #1 carried in the message sent to the terminal device #1 to 0. Is the second mapping mode.

In addition, in the embodiment of the present invention, the first indication information may be carried in the control information sent by the network device to the terminal device, for example, Downlink Control Information (DCI).

Moreover, in the embodiment of the present invention, the network device may further perform resource scheduling on the terminal device #1 to notify the terminal device #1 to perform time-frequency resources used in the resource mapping process.

After receiving the indication information #1, the terminal device #1 may select a mapping mode corresponding to the indication information #1 from the first mapping mode and the second mapping mode as resource mapping for the uplink data #1. The target mapping mode used.

Thereafter, the terminal device #1 may perform resource mapping processing (including resource mapping processing for data signals and resource mapping processing for demodulation reference signals) based on the target mapping mode according to resource scheduling of the network device.

For example, FIG. 6 shows a schematic diagram of a demodulation reference signal and a data signal obtained by the terminal device #1 performing resource mapping processing according to the method of transmitting uplink data according to an embodiment of the present invention when N=6. As shown in FIG. 6, under normal CP, in slot 0 and slot 1, the demodulation reference signal of the terminal device #1 corresponds to 12 subcarriers, that is, subcarrier #0 to subcarrier #11 in FIG. And, the data signal corresponds to 6 subcarriers, that is, subcarrier #0 to subcarrier #5 in FIG. As shown in FIG. 6, the data signal corresponding subcarrier is a part of the corresponding subcarrier of the demodulation reference signal, or the corresponding subcarrier of the data signal belongs to the subcarrier corresponding to the demodulation reference signal.

It should be noted that the data signal shown in FIG. 6 may be part or all of all data signals that the terminal device #1 needs to transmit to the network device, and the present invention is not particularly limited. For example, when the uplink data #1 requires 3 RB#3 bearers, it is necessary to allocate 24 subcarriers for the terminal device #1 to carry three data signals and two demodulation reference signals. Moreover, the 12 subcarriers occupied by the two RB#3s corresponding to the first two data signals correspond to 12 subcarriers occupied by the RB#2 corresponding to the first demodulation reference signal, and the RB#3 corresponding to the last data signal. The occupied 6 subcarriers correspond to the first 6 subcarriers of the 12 subcarriers occupied by the RB#2 corresponding to the second demodulation reference signal.

Optionally, if the target mapping mode is the first mapping mode, and the positions of the W subcarriers in the first time slot and the second time slot of the first subframe carrying the first data signal are the same, In the first time slot, the T subcarriers include subcarriers located at a first location among the W subcarriers, and in the second time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, where The first position is different from the second position.

That is, in the embodiment of the present invention, in the two slots of one subframe, if the W subcarriers carrying the demodulation reference signal are at the same position of the wave, the T subcarriers carrying the data signal in the two slots can be made. The positions are different, that is, the resource mapping processing for the data signals can be performed by using a frequency hopping method. Specifically, if the terminal device #1 performs resource mapping using the first mapping mode, and the number of subcarriers T occupied by the finally generated data signal (for example, 6) < the number of subcarriers occupied by the demodulation reference signal W (for example, 12), for example, when N=6, the uplink data #1 occupies only one RB#3. In this case, the terminal device #1 transmits the demodulation reference signal using only one RB#2. FIG. 7 is another schematic diagram showing demodulation reference signals and data signals obtained by the terminal device #1 performing resource mapping processing according to the method of transmitting uplink data according to an embodiment of the present invention when N=6. As shown in Figure 7 It is shown that in slot 0 (an example of the first slot of the first subframe), the demodulation reference signal of the terminal device #1 corresponds to 12 subcarriers, that is, subcarrier #0 to subcarrier #11 in FIG. And, the data signal corresponds to 6 subcarriers, that is, subcarrier #0 to subcarrier #5 in FIG. In slot 1 (an example of the second slot of the first subframe), the demodulation reference signal of the terminal device #1 corresponds to 12 subcarriers, that is, subcarrier #0 to subcarrier #11 in FIG. And, the data signal corresponds to 6 subcarriers, that is, subcarrier #6 to subcarrier #11 in FIG. As shown in FIG. 7, the data signal corresponding subcarrier is a part of the corresponding subcarrier of the demodulation reference signal, or the corresponding subcarrier of the data signal belongs to the subcarrier corresponding to the demodulation reference signal.

In the embodiment of the present invention, since the data signals correspond to different subcarriers in different time slots, the diversity gain can be utilized. For example, when the channel quality corresponding to the subcarriers #0 to 5# is poor, the subcarrier #6 is used. When the channel quality corresponding to the subcarrier #11 is high, it is possible to prevent the data signal from being always transmitted on the channel of poor quality, thereby improving the communication quality.

It should be understood that the above-mentioned frequency hopping method is only an example of resource mapping for data signals, and the present invention is not limited thereto. For example, in the embodiment of the present invention, the first location and the second location may be the same.

Optionally, if the target mapping mode is the first mapping mode, the position of the W subcarriers in the first time slot and the second time slot of the second subframe that carries the first demodulation reference signal different.

Specifically, in the embodiment of the present invention, resource mapping processing for the demodulation reference signal may be performed in a frequency hopping manner, that is, in slot 0 (an example of the first slot of the second subframe), the bearer is carried. The W subcarriers of the first demodulation reference signal are, for example, subcarrier #0 to subcarrier #11, and in slot 1 (an example of the second slot of the second subframe), carrying the first demodulation reference signal The W subcarriers are, for example, subcarrier #12 to subcarrier #23.

In the embodiment of the present invention, since the demodulation reference signals correspond to different subcarriers in different time slots, the diversity gain can be utilized, for example, when the channel quality corresponding to the subcarriers #0 to #11# is poor, and the subcarriers# When the channel quality corresponding to 12 to subcarrier #23 is high, it is possible to prevent the demodulation reference signal from being always transmitted on the channel of poor quality, thereby improving the communication quality.

Alternatively, if the target mode map for mapping a first mode, the T <W, and the first data signal is a first terminal device based on the first power control factor α ₁ signal data obtained after power amplification processing The first demodulation reference signal is a demodulation reference signal obtained by the first terminal device performing power amplification processing based on the second power control factor α ₂ , where α ₂ =T/W·α ₁ .

Specifically, in the case of mapping by using the first mapping mode, in order to make the data signal after the mapping processing meet the uplink transmission power requirement, it is necessary to make the uplink transmission power of the data signal P _PUSCH,c , and to make the demodulation reference The uplink transmit power of the signal is P _PUSCH,c , where P _{PUSCH,c is} related to parameters such as path loss between the terminal device #1 and the network device.

In this case, the terminal device #1 may be the above data signal multiplied by the power factor β _PUSCH (ie, an example of the first power control factor α ₁ ) to satisfy the requirement of the uplink transmit power of the user, so that the uplink transmit power of the data signal is P _PUSCH,c .

Similarly, for example, when N=6 and only 1 RB#3 is used to transmit the data signal, the terminal device #1 may be the above pilot multiplied by the power factor 6/12×β _PUSCH =β _PUSCH /2 (ie , the second power control factor α ₂ ).

When N=6 and x RB#3 is used to transmit data, terminal device #1 may be the above pilot multiplied by the power factor

Optionally, the method further includes:

The network device transmits information indicating the first power control factor α ₁ or the second power control factor α ₂ to the first terminal device.

Specifically, in the embodiment of the present invention, the network device may further determine the first power control factor α _{1 according to} parameters such as path loss between the terminal device #1 and the network device, and indicate the first power control factor α ₁ The information (hereinafter, referred to as instruction information #2 for ease of understanding and distinction) is sent to the terminal device #1. Thereby, the terminal device #1 can learn the first power control factor α ₁ and calculate the second power control factor α ₂ according to α ₂ =T/W·α ₁ .

Alternatively, the network device sends a signal for determining parameters such as path loss to the terminal device #1, so that the terminal device #1 can determine the path loss between the network device and the terminal device #1 according to the fifth indication information. The first power control factor α _{1 is} determined by the parameter, and thus, the terminal device #1 can calculate the second power control factor α ₂ according to α ₂ =T/W·α ₁ .

Still alternatively, the indication information #2 can also be used to indicate the second power control factor α ₂ . 1 can thus _{α 2 = T / W · α} 1, is calculated to obtain a first terminal device # power control factor α _1.

It should be noted that, in the embodiment of the present invention, the indication information #2 and the indication information #1 may be carried in the same message, that is, the network device may simultaneously send the indication information #2 and the indication information by one transmission process. 1 is sent to terminal device #1. Moreover, in the embodiment of the present invention, the location of the indication information #2 and the indication information #1 in the message may be continuous or may be between the two. The present invention is not particularly limited by other information.

Alternatively, the indication information #2 and the indication information #1 may also be carried in different messages, that is, the network device may separately send the indication information #2 and the indication information #1 to the terminal device #1 through two transmission processes, The present invention does not specifically limit the specific transmission process and number of transmissions.

Optionally, if the target mapping mode is the first mapping mode, then T<W, and

The method also includes:

The network device sends information indicating the first cyclic offset value to the first terminal device, so that the first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value, to The first demodulation reference signal is generated.

And, optionally,

The method also includes:

Sending, by the network device, information indicating the first mapping mode to the second terminal device;

The network device sends, to the second terminal device, information indicating a second cyclic offset value, the first cyclic offset value being different from the second cyclic offset value;

The network device receives the second data signal and the second demodulation reference signal sent by the second terminal device, where the second data signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode, where the The second data signal includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, where the second demodulation reference signal is that the second terminal device according to the first mapping mode and the second cyclic offset The first demodulation reference signal is overlapped with the second demodulation reference signal, which is generated after the value conversion is performed.

Specifically, if the terminal device #1 performs resource mapping by using the first mapping mode, and the number of subcarriers occupied by the finally generated data signal T<the number of subcarriers occupied by the demodulation reference signal is W, it indicates that one is used for transmission. A part of 12 subcarriers occupied by RB#2 of the demodulation reference signal (for example, 6 when N=6) is not occupied, so that the network device can perform resource scheduling, and the part is sub The carrier is allocated to the terminal device #2 (an example of the second terminal device) capable of resource mapping using the first mapping mode described above.

Further, the method and the procedure for the network device to determine that the terminal device #2 can perform resource mapping using the first mapping mode is similar to the processing procedure for the terminal device #1. Here, in order to avoid redundancy, detailed description thereof will be omitted.

When N=6, if both the terminal device #1 and the terminal device #2 can complete the transmission of the uplink data by using one RB#3, the terminal device #1 and the terminal device #2 can multiplex the same RB#2 for transmission. The demodulation reference signal is transmitted, that is, the two demodulation reference signals overlap in the frequency domain, or completely overlap.

Alternatively, when N=6, if either of the terminal device #1 and the terminal device #2 needs to use 3 (or an odd number greater than 3) RB#3 to complete the transmission of the uplink data, the side needs to allocate 2 for it. (or more than 2) RB#2 to transmit the demodulation reference signal, then terminal device #1 and terminal device #2 can multiplex two (or more) RB#2 to transmit the demodulation reference signal, ie The two demodulation reference signals overlap in the frequency domain. For example, if the data signal of the terminal device #1 needs to occupy 18 subcarriers (for example, subcarrier numbers 0 to 17), the demodulation reference signal needs to occupy 24 subcarriers (subcarrier numbers 0 to 23). In this case, the subcarrier number The subcarriers of 18 to 23 do not carry data signals. Therefore, if the number of subcarriers occupied by the data signal of the terminal device #2 is less than or equal to 6, the partial subcarriers can be allocated to the terminal device #2, ie, The two data signals occupy 6 subcarriers (18 to 23), and the pilots occupy 24 subcarriers (numbers 0 to 23).

In the embodiment of the present invention, the network device may allocate different cyclic shifts for the terminal device #1 and the terminal device #2 to make the two demodulation reference signals orthogonal. And transmitting, to the terminal device #1, information indicating the first cyclic offset value (hereinafter, referred to as the instruction information #3 for ease of understanding and distinction), and transmitting the second cyclic offset value to the terminal device #2. For example, the network device may send the cyclic offset and orthogonal mask of the demodulation reference signal in two downlink control information (DCI, Downlink Control Information) of the terminal device #1 and the terminal device #2, respectively. The (Cyclic shift for DM RS and OCC index) field is set to a different value to indicate a different cyclic shift.

It should be noted that, in the embodiment of the present invention, the indication information #3 and the indication information #1 and the indication information #2 may be carried in the same message, that is, the network device may simultaneously send the indication information by a sending process. 3. The indication information #1 and the instruction information #2 are transmitted to the terminal device #1. In addition, in the embodiment of the present invention, the location of the indication information #3 and the indication information #1 or the indication information #2 in the message may be continuous or other information spaced apart from each other, and the present invention is not particularly limited. .

Alternatively, the indication information #3 and the indication information #1 and the indication information #2 may also be carried in different messages, that is, the network device may separately indicate the indication information #1 by multiple transmission processes (two or three times). The indication information #2 and the indication information #3 are transmitted to the terminal device #1, and the present invention does not particularly limit the specific transmission process and the number of transmissions.

According to the method for transmitting uplink data according to the embodiment of the present invention, two mapping modes can be provided. In the first mapping mode, the number of subcarriers to which the data signal is mapped is mapped with the demodulation reference signal. The number of subcarriers that are obtained is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is used. Mapping to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4, or 6, thus enabling resource mapping processing for data signals in units of less than 12 subcarriers, thereby enabling the terminal device It is not necessary to occupy redundant subcarriers, which can reduce the burden on the terminal device, reduce interference to other terminal devices, waste the uplink transmission frequency domain resources, and improve the performance of the communication system.

And, for example, in the case that the data transmission of the data signal can be completed by using only two sub-carriers in the two terminal devices, in the prior art, in order to complete the data transmission of the two terminal devices, it is necessary to occupy 24 sub-carriers, and In contrast, since the method of transmitting uplink data in the present embodiment and the embodiment can perform resource mapping for data signals in units of 2, 3, 4, or 6, and by assigning different Cyclic shifts to the two terminal devices, The two terminal devices multiplex the same carrier transmission pilot reference signal, so that only 12 subcarriers are needed to complete the data transmission of the two terminal devices, which greatly reduces the waste of uplink transmission frequency domain resources.

In addition, in the embodiment of the present invention, since the pilot resource mapping process is performed in units of the number of 12 subcarriers in the first mapping mode and the second mapping mode, the existing communication system can be compatible, for example, the LTE communication system. The processing of the pilot resource mapping is performed, so that the practicability of the present invention can be further improved.

FIG. 8 is a schematic flowchart of a method 300 for transmitting uplink data according to an embodiment of the present invention, which is described in the perspective of a terminal device (for example, the above-described terminal device #1). The method 300 is applied to use a first mapping mode or a communication system in which the second mapping mode performs resource mapping processing, in which the number of subcarriers to which the data signal is mapped is different from the number of subcarriers to which the demodulation reference signal is mapped, and the data signal The mapped subcarrier belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, where N is the following Any value: 2, 3, 4 or 6, in the second mapping mode, the number and position of the subcarriers to which the data signal and the demodulation reference signal are mapped are the same, and the data signal and the demodulation reference signal are mapped On the integer multiple of subcarriers of 12, as shown in FIG. 8, the method 300 includes: S310, the first terminal device receives information sent by the network device to indicate a target mapping mode, where the target image is displayed. This pattern is determined by the network device from the first mode and the second mapping in the mapping pattern;

S320. The first terminal device performs resource mapping processing according to the target mapping mode to generate a first demodulation reference signal and a first data signal, wherein the first demodulation reference signal corresponds to W subcarriers, the first data signal corresponding to T subcarriers of the W subcarriers, and W is 12. Integer multiple

S330. The first terminal device sends the first demodulation reference signal and the first data signal to the network device.

Optionally, if the target mapping mode is the first mapping mode, then T<W, and

The method also includes:

Receiving, by the first terminal device, information that is sent by the network device to indicate a first cyclic offset value;

The first terminal device performs resource mapping processing according to the target mapping mode, including:

The first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value.

Optionally, the first cyclic offset value is different from the second cyclic offset value, where the second cyclic offset value is a cyclic offset value sent by the network device to the second terminal device, where the second terminal device is configured according to The second data signal generated after the resource mapping process is performed by the first mapping mode includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, and the second terminal device according to the first mapping mode and The second demodulation reference signal generated after the resource mapping process is performed by the second cyclic offset value overlaps with the first demodulation reference signal.

Optionally, if the target mapping mode is the first mapping mode, then T<W, and

Before the first terminal device sends the first demodulation reference signal and the first data signal to the network device, the method further includes:

The first terminal device performs power amplification processing on the first data signal based on the first power control factor α ₁ ;

The first terminal device performs power amplification processing on the first demodulation reference signal based on the second power control factor α ₂ , where α ₂ =T/W·α ₁ .

Optionally, the method further includes:

The first terminal device receives information sent by the network device to indicate the first power control factor α ₁ or the second power control factor α ₂ .

Optionally, in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to a symbol with a sequence number of 0, 1, 2, 4, 5, and 6 in each slot. Corresponding subcarriers, the subcarrier to which the demodulation reference signal is mapped belongs to a subcarrier corresponding to the symbol of sequence number 3 in each slot; or

In the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, and 5 in each slot, and the demodulation is performed. The subcarrier to which the reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.

Optionally, the first data signal is a data signal of an enhanced voice service EVS service. In the method 300, the action of the terminal device is similar to the action of the terminal device #1 in the above method 200, and the action of the network device is similar to the action of the network device in the above method 200. Here, in order to avoid redundancy, detailed description thereof will be omitted.

According to the method for transmitting uplink data according to the embodiment of the present invention, two mapping modes can be provided. In the first mapping mode, the number of subcarriers to which the data signal is mapped is related to the number of subcarriers to which the demodulation reference signal is mapped. And the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to an integer multiple of 12 On the carrier, N is any of the following values: 2, 3, 4, or 6. Therefore, it is possible to support resource mapping processing for data signals in units of less than 12 subcarriers, so that the terminal device does not need to occupy redundant subcarriers. The burden on the terminal device can be reduced, the interference to other terminal devices and the waste of uplink transmission frequency domain resources can be reduced, and the performance of the communication system can be improved.

And, for example, in the case that the data transmission of the data signal can be completed by using only two sub-carriers in the two terminal devices, in the prior art, in order to complete the data transmission of the two terminal devices, it is necessary to occupy 24 sub-carriers, and In contrast, since the method of transmitting uplink data in the present embodiment and the embodiment can perform resource mapping for data signals in units of 2, 3, 4, or 6, and by assigning different Cyclic shifts to the two terminal devices, Two terminal devices multiplex the same carrier transmission pilot reference signal, so that only two subcarriers are needed to complete the two terminal devices The data transmission greatly reduces the waste of uplink transmission frequency domain resources.

The method for transmitting uplink data according to an embodiment of the present invention is described in detail above with reference to FIG. 1 through FIG. 8. Hereinafter, an apparatus for transmitting uplink data according to an embodiment of the present invention will be described in detail with reference to FIG. 9 through FIG.

FIG. 9 shows a schematic block diagram of an apparatus 400 for transmitting uplink data in accordance with an embodiment of the present invention. The device 400 is configured in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the number of subcarriers to which the data signal is mapped and the demodulation reference signal are mapped to The number of subcarriers is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to On an integer multiple of 12 subcarriers, N is any of the following values: 2, 3, 4, or 6. In the second mapping mode, the number and location of subcarriers to which the data signal and the demodulation reference signal are mapped are the same. And the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers. As shown in FIG. 9, the apparatus 400 includes:

a determining unit 410, configured to determine a target mapping mode from the first mapping mode and the second mapping mode;

The sending unit 420 is configured to send, to the first terminal device, information used to indicate the target mapping mode.

The receiving unit 430 is configured to receive a first demodulation reference signal and a first data signal that are generated by the first terminal device after performing resource mapping processing according to the target mapping mode, where the first demodulation reference signal is compared with W subcarriers Correspondingly, the first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12.

Optionally, if the target mapping mode is the first mapping mode, T<W, the sending unit 420 is further configured to send, to the first terminal device, information indicating a first cyclic offset value, so that the The first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value to generate the first demodulation reference signal.

Optionally, the sending unit 420 is further configured to send, to the second terminal device, information for indicating the first mapping mode and information for indicating a second cyclic offset value, where the first cyclic offset value is The second loop offset values are different;

The receiving unit 430 is further configured to receive the second data signal and the second demodulation reference signal that are sent by the second terminal device, where the second data signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode. The second data signal includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, where the second demodulation reference signal is according to the first mapping mode and the second terminal device The second cyclic offset value is generated after performing resource mapping processing, and the first demodulation reference signal overlaps with the second demodulation reference signal.

Optionally, the sending unit 420 is further configured to send, to the first terminal device, information for indicating the first power control factor α ₁ or the second power control factor α ₂ .

Optionally, the determining unit 410 is specifically configured to determine, according to the size of the first uplink data that the first terminal device needs to transmit, the first mapping mode and the second mapping mode, where the first data signal is determined. The first terminal device is configured to the first uplink number according to the target mapping mode. Generated after resource mapping processing.

Optionally, the determining unit 410 is specifically configured to determine, according to the size of the first uplink data, a quantity M of subcarriers required to transmit the first uplink data;

When M≤N, it is determined to use the first mapping mode as the target mapping mode; or

When M>N, and 12·(i-1)<M≤12i-N, it is determined that the first mapping mode is used as the target mapping mode, and i is a positive integer.

The apparatus 400 for transmitting uplink data according to the embodiment of the present invention may correspond to the network device in the method of the embodiment of the present invention, and the modules and the other operations and/or functions in the apparatus 400 for transmitting the uplink data respectively In order to implement the corresponding process of the method 200 in FIG. 5, for brevity, details are not described herein again.

The apparatus for transmitting uplink data according to the embodiment of the present invention can provide two mapping modes, in which the number of subcarriers to which the data signal is mapped is related to the number of subcarriers to which the demodulation reference signal is mapped. And the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to an integer multiple of 12 On the carrier, N is any of the following values: 2, 3, 4, or 6. Therefore, it is possible to support resource mapping processing for data signals in units of less than 12 subcarriers, so that the terminal device does not need to occupy redundant subcarriers. The burden on the terminal device can be reduced, the interference to other terminal devices and the waste of uplink transmission frequency domain resources can be reduced, and the performance of the communication system can be improved.

FIG. 10 shows a schematic block diagram of an apparatus 500 for transmitting uplink data in accordance with an embodiment of the present invention. The apparatus 500 is configured in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the number of subcarriers to which the data signal is mapped and the demodulation reference signal are mapped to The number of subcarriers is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to On an integer multiple of 12 subcarriers, N is any of the following values: 2, 3, 4, or 6. In the second mapping mode, the number and location of subcarriers to which the data signal and the demodulation reference signal are mapped are the same. And the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers. As shown in FIG. 10, the apparatus 500 includes:

The receiving unit 510 is configured to receive, by the network device, information for indicating a target mapping mode, where the target mapping mode is determined by the network device from the first mapping mode and the second mapping mode;

The mapping unit 520 is configured to perform resource mapping processing according to the target mapping mode to generate a first demodulation reference signal and a first data signal, where the first demodulation reference signal corresponds to W subcarriers, the first data The signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12;

The sending unit 530 is configured to send the first demodulation reference signal and the first data signal to the network device.

Optionally, if the target mapping mode is the first mapping mode, T<W, the receiving unit 510 is further configured to receive information sent by the network device to indicate a first cyclic offset value;

The mapping unit 520 is specifically configured to perform resource mapping processing according to the first mapping mode and the first cyclic offset value.

Optionally, if the target mapping mode is the first mapping mode, and the positions of the W subcarriers in the first time slot and the second time slot of the first subframe carrying the first data signal are the same, In the first time slot, the T subcarriers include subcarriers located at a first location among the W subcarriers, In the second time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, and the first location is different from the second location.

Alternatively, if the target mode map for mapping a first mode, the T <W, the transmission unit 530 performs power amplification for further processing based on the first power control factor α ₁ of the first data signal based on the second The power control factor α ₂ performs power amplification processing on the first demodulation reference signal, where α ₂ = T/W·α ₁ .

Optionally, the receiving unit 510 is further configured to receive information sent by the network device to indicate the first power control factor α ₁ or the second power control factor α ₂ .

Optionally, in the first mapping mode, when the normal cyclic prefix CP is used, the mapping unit 520 is specifically configured to map the data signal into each time slot with a sequence number of 0, 1, 2, 4, and 5. The T subcarrier corresponding to the symbol of 6 maps the demodulation reference signal to W subcarriers corresponding to the symbol of sequence number 3 in each slot; or

In the first mapping mode, when the CP is extended, the mapping unit 520 is specifically configured to map the data signal to the T subcarriers corresponding to the symbols of the sequence numbers 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the W subcarriers corresponding to the symbol of sequence number 2 in each slot.

The apparatus 500 for transmitting uplink data according to an embodiment of the present invention may correspond to a terminal device (for example, terminal device #1) in the method of the embodiment of the present invention, and each unit in the device 500 for transmitting uplink data is a module and The other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 300 in FIG. 8. For brevity, details are not described herein again.

The apparatus for transmitting uplink data according to the embodiment of the present invention can provide two mapping modes, in which the number of subcarriers to which the data signal is mapped is related to the number of subcarriers to which the demodulation reference signal is mapped. And the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to an integer multiple of 12 On the carrier, N is any of the following values: 2, 3, 4, or 6. Therefore, it is possible to support resource mapping processing for data signals in units of less than 12 subcarriers, so that the terminal device does not need to occupy redundant subcarriers. Can reduce the burden on the terminal device, Reduce interference to other terminal devices and waste of uplink transmission frequency domain resources, and improve the performance of the communication system.

The method for transmitting uplink data according to the embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 8. Hereinafter, an apparatus for transmitting uplink data according to an embodiment of the present invention will be described in detail with reference to FIG. 11 to FIG.

FIG. 11 shows a schematic block diagram of an apparatus 600 for transmitting uplink data in accordance with an embodiment of the present invention. The device 600 is configured in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the number of subcarriers to which the data signal is mapped and the demodulation reference signal are mapped to The number of subcarriers is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to On an integer multiple of 12 subcarriers, N is any of the following values: 2, 3, 4, or 6. In the second mapping mode, the number and location of subcarriers to which the data signal and the demodulation reference signal are mapped are the same. And the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers. As shown in FIG. 11, the device 600 includes:

Bus 610;

a processor 620 connected to the bus 610;

a memory 630 connected to the bus 610;

Transceiver 640 coupled to bus 610

The processor 620, by using the bus 610, invokes a program stored in the memory 630, for determining a target mapping mode from the first mapping mode and the second mapping mode;

Transmitting, by the transceiver 640, information for indicating the target mapping mode to the first terminal device;

a first demodulation reference signal and a first data signal generated by the control transceiver 640 after the first terminal device performs resource mapping processing according to the target mapping mode, where the first demodulation reference signal is compared with W subcarriers. Correspondingly, the first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12.

Optionally, if the target mapping mode is the first mapping mode, T<W, the processor 620 is further configured to control the transceiver 640 to send the first terminal device to indicate the first cyclic offset value. And the information is such that the first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value to generate the first demodulation reference signal.

Optionally, the processor 620 is further configured to control the transceiver 640 to send, to the second terminal device, information for indicating the first mapping mode and information for indicating a second cyclic offset value, where the first cyclic The shift value is different from the second loop offset value;

The second data signal and the second demodulation reference signal sent by the second terminal device are received by the second terminal device, and the second data signal is generated by the second terminal device performing resource mapping processing according to the first mapping mode. The second data signal includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, where the second demodulation reference signal is according to the first mapping mode and the second terminal device The second cyclic offset value is generated after performing resource mapping processing, and the first demodulation reference signal overlaps with the second demodulation reference signal.

Optionally, the processor 620 is further configured to control the transceiver 640 to send information to the first terminal device for indicating the first power control factor α ₁ or the second power control factor α ₂ .

Optionally, the processor 620 is specifically configured to determine, according to the size of the first uplink data that the first terminal device needs to transmit, the first mapping mode and the second mapping mode, where the first data signal is determined. The first terminal device generates the resource mapping process on the first uplink data according to the target mapping mode.

Optionally, the processor 620 is specifically configured to determine, according to the size of the first uplink data, a quantity M of subcarriers required to transmit the first uplink data;

The processor can also be referred to as a CPU. The memory can include read only memory and random access memory and provides instructions and data to the processor. A portion of the memory may also include non-volatile line random access memory (NVRAM). In a particular application, device 600 may be embedded or may itself be a network device such as a base station, and may also include a carrier that houses the transmitting circuitry and the receiving circuitry to allow for data transmission and reception between device 600 and a remote location. The transmit and receive circuits can be coupled to the antenna. The various components of device 600 are coupled together by a bus, wherein the bus includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are labeled as bus 610 in the figure. The decoder in a specific different product may be integrated with the processing unit.

The processor may implement or perform the steps and logic blocks disclosed in the method embodiments of the present invention. The general purpose processor may be a microprocessor or the processor or any conventional processor, decoder or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly embodied as hardware. The processor execution is complete or is performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.

It should be understood that, in the embodiment of the present invention, the processor 620 may be a central processing unit ("CPU"), and the processor 620 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 630 can include read only memory and random access memory and provides instructions and data to the processor 20. A portion of the memory 630 may also include a non-volatile random access memory. For example, the memory 630 can also store information of the device type.

The bus 610 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus 610 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 620 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 630, and the processor 620 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The device 600 for transmitting uplink data according to the embodiment of the present invention may correspond to the network device in the method of the embodiment of the present invention, and the modules and the other operations and/or functions in the device 600 for transmitting the uplink data respectively In order to implement the corresponding process of the method 200 in FIG. 5, for brevity, details are not described herein again.

FIG. 12 shows a schematic block diagram of an apparatus 700 for transmitting uplink data in accordance with an embodiment of the present invention. The device 700 is configured in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, where the number of subcarriers to which the data signal is mapped and the demodulation reference signal are mapped to The number of subcarriers is different, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to an integer multiple of subcarriers of N, and the demodulation reference signal is mapped to On an integer multiple of 12 subcarriers, N is any of the following values: 2, 3, 4, or 6. In the second mapping mode, the number and location of subcarriers to which the data signal and the demodulation reference signal are mapped are the same. And the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers. As shown in FIG. 12, the device 700 includes:

Bus 710;

a processor 720 connected to the bus 710;

a memory 730 connected to the bus 710;

Transceiver 740 coupled to bus 710

The processor 720, by using the bus 710, invokes a program stored in the memory 730, for controlling the transceiver 740 to receive information sent by the network device for indicating a target mapping mode, where the target mapping mode is Determining, by the network device, the first mapping mode and the second mapping mode;

And performing resource mapping processing according to the target mapping mode to generate a first demodulation reference signal And a first data signal, wherein the first demodulation reference signal corresponds to W subcarriers, the first data signal corresponding to T subcarriers of the W subcarriers, and W is an integer multiple of 12;

The transceiver 740 is configured to send the first demodulation reference signal and the first data signal to the network device.

Optionally, if the target mapping mode is the first mapping mode, T<W, the processor 720 is further configured to control the transceiver 740 to receive information sent by the network device to indicate a first cyclic offset value. ;as well as

The processor 720 is specifically configured to perform resource mapping processing according to the first mapping mode and the first cyclic offset value.

Alternatively, if the target mode map for mapping a first mode, the T <W, the processor 720 is further configured to control the transceiver 740 based on a first power amplifier power control factor α ₁ of the first data signal Processing, performing power amplification processing on the first demodulation reference signal based on the second power control factor α ₂ , where α ₂ =T/W·α ₁ .

Optionally, the processor 720 is further configured to control the transceiver 740 to receive information sent by the network device to indicate the first power control factor α ₁ or the second power control factor α ₂ .

Optionally, in the first mapping mode, when the normal cyclic prefix CP is used, the mapping unit is specifically configured to map the data signal into each time slot with the sequence number 0, 1, 2, 4, 5, and 6. symbol Corresponding T subcarriers, mapping the demodulation reference signal to W subcarriers corresponding to the symbol of sequence number 3 in each slot; or

In the first mapping mode, when the CP is extended, the mapping unit is specifically configured to map the data signal to T subcarriers corresponding to the symbols of the sequence numbers 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the W subcarriers corresponding to the symbol of sequence number 2 in each slot.

The processor can also be referred to as a CPU. The memory can include read only memory and random access memory and provides instructions and data to the processor. A portion of the memory may also include non-volatile line random access memory (NVRAM). In a specific application, the device 700 may be embedded or may itself be a terminal device such as a mobile phone, and may also include a carrier that houses the transmitting circuit and the receiving circuit to allow data transmission and reception between the device 700 and the remote location. The transmit and receive circuits can be coupled to the antenna. The various components of device 700 are coupled together by a bus, wherein the bus includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are labeled as bus 710 in the figure. The decoder in a specific different product may be integrated with the processing unit.

The processor may implement or perform the steps and logic blocks disclosed in the method embodiments of the present invention. The general purpose processor may be a microprocessor or the processor or any conventional processor, decoder or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.

It should be understood that, in the embodiment of the present invention, the processor 720 may be a central processing unit ("CPU"), and the processor 720 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 730 can include read only memory and random access memory and provides instructions and data to the processor 720. A portion of the memory 730 may also include a non-volatile random access memory. For example, the memory 730 can also store information of the device type.

The bus 710 may include a power bus, a control bus, and a shape in addition to the data bus. State signal bus, etc. However, for clarity of description, various buses are labeled as bus 7100 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 620 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 730, and the processor 720 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The device 700 for transmitting uplink data according to the embodiment of the present invention may correspond to the network device in the method of the embodiment of the present invention, and the modules and the other operations and/or functions in the device 700 for transmitting the uplink data respectively In order to implement the corresponding process of the method 300 in FIG. 8, for brevity, no further details are provided herein.

In addition, in the embodiment of the present invention, since the pilot resource mapping process is performed in units of the number of 12 subcarriers in the first mapping mode and the second mapping mode, the existing communication system can be compatible, for example, the LTE communication system. Waiting for the mapping of pilot resources, which can further improve the present The practicality of Ming.

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.

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 or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

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

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

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including Several instructions are used to make a computer device (which can be a personal computer, a server, Or a network device or the like) performing all or part of the steps of the method of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for transmitting uplink data, which is applied to a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the subcarriers to which data signals are mapped are mapped in the first mapping mode The number is different from the number of subcarriers to which the demodulation reference signal is mapped, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to N On an integer multiple of subcarriers, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4, or 6, in the second mapping mode, the data signal and solution And the number of subcarriers to which the reference signal is mapped is the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, and the method includes:

Determining, by the network device, the target mapping mode from the first mapping mode and the second mapping mode;

Sending, by the network device, information indicating the target mapping mode to the first terminal device;

Receiving, by the network device, a first demodulation reference signal and a first data signal generated by the first terminal device performing resource mapping processing according to the target mapping mode, where the first demodulation reference signal and the W subcarriers Correspondingly, the first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12.
The method according to claim 1, wherein if the target mapping mode is the first mapping mode, T<W, and

The method further includes:

Sending, by the network device, the information indicating the first cyclic offset value to the first terminal device, so that the first terminal device performs according to the first mapping mode and the first cyclic offset value. Resource mapping processing to generate the first demodulation reference signal.
The method of claim 2, wherein the method further comprises:

Sending, by the network device, information indicating the first mapping mode to the second terminal device;

Transmitting, by the network device, information for indicating a second cyclic offset value to the second terminal device, where the first cyclic offset value is different from the second cyclic offset value;

The network device receives the second data signal and the second demodulation reference signal sent by the second terminal device, where the second data signal is after the second terminal device performs resource mapping processing according to the first mapping mode. The generated second data signal includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, where the second demodulation reference signal is And generating, by the second terminal device, the resource mapping process according to the first mapping mode and the second cyclic offset value, where the first demodulation reference signal overlaps with the second demodulation reference signal.
The method according to any one of claims 1 to 3, wherein if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal The first time slot of a subframe is the same as the second time slot, and in the first time slot, the T subcarriers include a subcarrier located at a first location among the W subcarriers, in the second The time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, and the first location is different from the second location.
The method according to any one of claims 1 to 3, wherein if the target mapping mode is the first mapping mode, the W subcarriers carry the first demodulation reference signal The positions in the first time slot and the second time slot of the second subframe are different.
The method according to any one of claims 1 to 5, wherein if the target mapping mode is the first mapping mode, T < W, and the first data signal is the first a data signal obtained by the terminal device after performing power amplification processing based on the first power control factor α 1 , the first demodulation reference signal being obtained after the first terminal device performs power amplification processing based on the second power control factor α 2 The reference signal is demodulated, where α 2 = T/W·α 1 .
The method of claim 6 wherein the method further comprises:

The network device sends information indicating the first power control factor α 1 or the second power control factor α 2 to the first terminal device.
The method according to any one of claims 1 to 7, wherein in the first mapping mode, when a normal cyclic prefix CP is used, a subcarrier to which the data signal is mapped belongs to each time slot. a subcarrier corresponding to a symbol of 0, 1, 2, 4, 5, 6 in which the subcarrier to which the demodulation reference signal is mapped belongs to a subcarrier corresponding to a symbol of sequence number 3 in each slot ;or

In the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.
The method according to any one of claims 1 to 8, wherein the determining, by the network device, the target mapping mode from the first mapping mode and the second mapping mode comprises:

The network device according to the size of the first uplink data that the first terminal device needs to transmit, from the first image And determining, in the second mapping mode, the target mapping mode, wherein the first data signal is generated by the first terminal device performing resource mapping processing on the first uplink data according to the target mapping mode.
The method according to claim 9, wherein the network device determines the target mapping mode from the first mapping mode and the second mapping mode according to the size of the first uplink data that the first terminal device needs to transmit, including :

The network device determines, according to the size of the first uplink data, the number M of subcarriers required to transmit the first uplink data;

When M≤N, the network device determines to use the first mapping mode as the target mapping mode; or

When M>N, and 12·(i-1)<M≤12i-N, the network device determines to use the first mapping mode as the target mapping mode, and i is a positive integer.
The method according to any one of claims 1 to 10, wherein the first data signal is a data signal of an enhanced voice service EVS service.
A method for transmitting uplink data, which is applied to a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the subcarriers to which data signals are mapped are mapped in the first mapping mode The number is different from the number of subcarriers to which the demodulation reference signal is mapped, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to N On an integer multiple of subcarriers, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4, or 6, in the second mapping mode, the data signal and solution And the number of subcarriers to which the reference signal is mapped is the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, and the method includes:

Receiving, by the network device, information indicating a target mapping mode, where the target mapping mode is determined by the network device from the first mapping mode and the second mapping mode;

The first terminal device performs resource mapping processing according to the target mapping mode to generate a first demodulation reference signal and a first data signal, where the first demodulation reference signal corresponds to W subcarriers, The first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12;

Transmitting, by the first terminal device, the first demodulation reference signal and the location to the network device The first data signal is described.
The method according to claim 12, wherein if the target mapping mode is the first mapping mode, T<W, and

The method further includes:

Receiving, by the first terminal device, information that is sent by the network device to indicate a first cyclic offset value;

The first terminal device performs resource mapping processing according to the target mapping mode, and includes:

The first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value.
The method according to claim 13, wherein the first cyclic offset value is different from the second cyclic offset value, and the second cyclic offset value is sent by the network device to the second terminal device. a cyclic offset value, the second data signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode, and corresponding to a subcarrier other than the T subcarriers of the W subcarriers The second demodulation reference signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode and the second cyclic offset value overlaps with the first demodulation reference signal.
The method according to any one of claims 12 to 14, wherein if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal The first time slot of a subframe is the same as the second time slot, and in the first time slot, the T subcarriers include a subcarrier located at a first location among the W subcarriers, in the second The time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, and the first location is different from the second location.
The method according to any one of claims 12 to 14, wherein if the target mapping mode is the first mapping mode, the W subcarriers carry the first demodulation reference signal The positions in the first time slot and the second time slot of the second subframe are different.
The method according to any one of claims 12 to 16, wherein if the target mapping mode is the first mapping mode, then T < W, and

Before the first terminal device sends the first demodulation reference signal and the first data signal to the network device, the method further includes:

The first terminal device performs power amplification processing on the first data signal based on the first power control factor α 1 ;

The first terminal device performs power amplification processing on the first demodulation reference signal based on the second power control factor α 2 , where α 2 =T/W·α 1 .
The method of claim 17, wherein the method further comprises:

The first terminal device receives information sent by the network device to indicate the first power control factor α 1 or the second power control factor α 2 .
The method according to any one of claims 12 to 18, wherein in the first mapping mode, when the normal cyclic prefix CP is used, the subcarrier to which the data signal is mapped belongs to each time slot. a subcarrier corresponding to a symbol of 0, 1, 2, 4, 5, 6 in which the subcarrier to which the demodulation reference signal is mapped belongs to a subcarrier corresponding to a symbol of sequence number 3 in each slot ;or

In the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.
The method according to any one of claims 12 to 19, wherein the first data signal is a data signal of an enhanced voice service EVS service.
An apparatus for transmitting uplink data, configured to be in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the subcarriers to which data signals are mapped are mapped in the first mapping mode The number is different from the number of subcarriers to which the demodulation reference signal is mapped, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to N On an integer multiple of subcarriers, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, N being any of the following values: 2, 3, 4, or 6, in the second mapping mode, the data signal and solution And the number of subcarriers to which the reference signal is mapped is the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, and the apparatus includes:

a determining unit, configured to determine a target mapping mode from the first mapping mode and the second mapping mode;

a sending unit, configured to send, to the first terminal device, information used to indicate the target mapping mode;

a receiving unit, configured to receive a first demodulation reference signal and a first data signal that are generated by the first terminal device after performing resource mapping processing according to the target mapping mode, where the first solution The tone reference signal corresponds to W subcarriers, and the first data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12.
The device according to claim 21, wherein if the target mapping mode is the first mapping mode, T<W, the sending unit is further configured to send, to the first terminal device, an indication. The information of the first cyclic offset value is such that the first terminal device performs resource mapping processing according to the first mapping mode and the first cyclic offset value to generate the first demodulation reference signal.
The apparatus according to claim 22, wherein the sending unit is further configured to send, to the second terminal device, information for indicating the first mapping mode and information for indicating a second cyclic offset value, The first cyclic offset value is different from the second cyclic offset value;

The receiving unit is further configured to receive a second data signal and a second demodulation reference signal that are sent by the second terminal device, where the second data signal is that the second terminal device performs resources according to the first mapping mode. After the mapping process, the second data signal includes a signal component corresponding to a subcarrier other than the T subcarriers of the W subcarriers, where the second demodulation reference signal is the second terminal After the device performs resource mapping processing according to the first mapping mode and the second cyclic offset value, the first demodulation reference signal overlaps with the second demodulation reference signal.
The apparatus according to any one of claims 21 to 23, wherein if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal The first time slot of a subframe is the same as the second time slot, and in the first time slot, the T subcarriers include a subcarrier located at a first location among the W subcarriers, in the second The time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, and the first location is different from the second location.
The apparatus according to any one of claims 21 to 23, wherein if the target mapping mode is the first mapping mode, the W subcarriers carry the first demodulation reference signal The positions in the first time slot and the second time slot of the second subframe are different.
The apparatus according to any one of claims 21 to 25, wherein if the target mapping mode is the first mapping mode, T < W, and the first data signal is the first a data signal obtained by the terminal device after performing power amplification processing based on the first power control factor α 1 , the first demodulation reference signal being obtained after the first terminal device performs power amplification processing based on the second power control factor α 2 The reference signal is demodulated, where α 2 = T/W·α 1 .
The apparatus according to claim 26, wherein the sending unit is further configured to send, to the first terminal device, an indication of the first power control factor α 1 or the second power control factor α 2 Information.
The apparatus according to any one of claims 21 to 27, wherein, in the first mapping mode, when a normal cyclic prefix CP is used, a subcarrier to which the data signal is mapped belongs to each time slot. a subcarrier corresponding to a symbol of 0, 1, 2, 4, 5, 6 in which the subcarrier to which the demodulation reference signal is mapped belongs to a subcarrier corresponding to a symbol of sequence number 3 in each slot ;or

In the first mapping mode, when the CP is extended, the subcarrier to which the data signal is mapped belongs to a subcarrier corresponding to the symbol of the sequence number 0, 1, 3, 4, and 5 in each slot. The subcarrier to which the demodulation reference signal is mapped belongs to the subcarrier corresponding to the symbol of sequence number 2 in each slot.
The device according to any one of claims 21 to 28, wherein the determining unit is specifically configured to: according to a size of the first uplink data that needs to be transmitted by the first terminal device, from the first mapping mode and the second mapping In the mode, the target mapping mode is determined, where the first data signal is generated by the first terminal device performing resource mapping processing on the first uplink data according to the target mapping mode.
The device according to claim 29, wherein the determining unit is specifically configured to determine, according to the size of the first uplink data, a quantity M of subcarriers required for transmitting the first uplink data;

Determining that the first mapping mode is used as the target mapping mode when M≤N; or

When M>N, and 12·(i-1)<M≤12i-N, it is determined that the first mapping mode is used as the target mapping mode, and i is a positive integer.
The apparatus according to any one of claims 21 to 30, wherein the first data signal is a data signal of an enhanced voice service EVS service.
An apparatus for transmitting uplink data, configured to be in a communication system that performs resource mapping processing using a first mapping mode or a second mapping mode, in which the subcarriers to which data signals are mapped are mapped in the first mapping mode The number is different from the number of subcarriers to which the demodulation reference signal is mapped, and the subcarrier to which the data signal is mapped belongs to a subcarrier to which the demodulation reference signal is mapped, and the data signal is mapped to N On an integer multiple of subcarriers, the demodulation reference signal is mapped to an integer multiple of 12 subcarriers, and N is any of the following values: 2, 3, 4, or 6, in the In the two mapping mode, the number and location of the subcarriers to which the data signal and the demodulation reference signal are mapped are the same, and the data signal and the demodulation reference signal are mapped to an integer multiple of 12 subcarriers, and the apparatus includes :

a receiving unit, configured to receive, by the network device, information for indicating a target mapping mode, where the target mapping mode is determined by the network device from the first mapping mode and the second mapping mode;

a mapping unit, configured to perform resource mapping processing according to the target mapping mode, to generate a first demodulation reference signal and a first data signal, where the first demodulation reference signal corresponds to W subcarriers, where A data signal corresponds to T subcarriers of the W subcarriers, and W is an integer multiple of 12;

And a sending unit, configured to send the first demodulation reference signal and the first data signal to the network device.
The device according to claim 32, wherein if the target mapping mode is the first mapping mode, T<W, the receiving unit is further configured to receive, by the network device, an indication a cyclic offset value information;

The mapping unit is specifically configured to perform resource mapping processing according to the first mapping mode and the first cyclic offset value.
The apparatus according to claim 33, wherein said first cyclic offset value is different from a second cyclic offset value, said second cyclic offset value being sent by said network device to said second terminal device a cyclic offset value, the second data signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode, and corresponding to a subcarrier other than the T subcarriers of the W subcarriers The second demodulation reference signal generated by the second terminal device after performing resource mapping processing according to the first mapping mode and the second cyclic offset value overlaps with the first demodulation reference signal.
The apparatus according to any one of claims 32 to 34, wherein if the target mapping mode is the first mapping mode, and the W subcarriers are carrying the first data signal The first time slot of a subframe is the same as the second time slot, and in the first time slot, the T subcarriers include a subcarrier located at a first location among the W subcarriers, in the second The time slot, the T subcarriers include subcarriers located at a second location among the W subcarriers, and the first location is different from the second location.
Apparatus according to any one of claims 32 to 34, wherein The target mapping mode is the first mapping mode, and the positions of the W subcarriers in the first time slot and the second time slot of the second subframe carrying the first demodulation reference signal are different.
The apparatus according to any one of claims 32 to 36, wherein if the target mapping mode is the first mapping mode, T<W, the transmitting unit is further configured to control based on the first power The factor α 1 performs power amplification processing on the first data signal, and performs power amplification processing on the first demodulation reference signal based on the second power control factor α 2 , where α 2 =T/W·α 1 .
The apparatus according to claim 37, wherein the receiving unit is further configured to receive, by the network device, the first power control factor α 1 or the second power control factor α 2 information.
The apparatus according to any one of claims 32 to 38, wherein, in the first mapping mode, when the normal cyclic prefix CP is used, the mapping unit is specifically configured to map the data signal to The T subcarrier corresponding to the symbol of the sequence number 0, 1, 2, 4, 5, 6 in each slot, the demodulation reference signal is mapped to the W corresponding to the symbol of sequence number 3 in each slot. Subcarriers; or

In the first mapping mode, when the CP is extended, the mapping unit is specifically configured to map the data signal to the T corresponding to the symbol with the sequence number 0, 1, 3, 4, 5 in each time slot. For each subcarrier, the subcarrier to which the demodulation reference signal is mapped belongs to the W subcarriers corresponding to the symbol of sequence number 2 in each slot.
The apparatus according to any one of claims 32 to 39, wherein the first data signal is a data signal of an enhanced voice service EVS service.