WO2017167155A1 - Method and apparatus for sending uplink demodulation reference signal (dmrs) - Google Patents

Abstract

Provided are a method and apparatus for sending an uplink demodulation reference signal (DMRS). The method comprises: configuring a parameter required for a terminal to send an uplink DMRS, wherein the parameter comprises at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, an uplink DMRS frequency comb index, an orthogonal mask enable control bit, a segment-generated DMRS sequence indication identifier and the number of uplink DMRS frequency combs; and sending the configured parameter to the terminal, wherein the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter. By means of the present invention, the problem existing in the relevant art that the multiplexing function of an uplink DMRS cannot be enhanced is solved, and the purpose of enhancing the multiplexing function of the uplink DMRS so as to satisfy the requirements of uplink multi-user pairing is achieved.

Description

Method and device for transmitting uplink demodulation reference signal DMRS Technical field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting an uplink demodulation reference signal (DMRS).

Background technique

The uplink physical channel of the Long Term Evolution (LTE) system includes a physical random access channel (Physical Random Access Channel, PRASH), a physical uplink shared channel (PUSCH), and physical uplink control. Channel (Physical Uplink Control Channel, abbreviated as PUCCH). For the Uplink Scheduling Information of the PUSCH, the network side may be sent to the target equipment (User Equipment, UE for short) through a Physical Downlink Control Channel (PDCCH) (also referred to as UE). terminal). The uplink scheduling information includes: resource allocation related to the physical uplink shared channel, modulation and coding scheme, and cyclic shift (Cyclic Shift) of the DMRS.

The physical uplink shared channel in the LTE system is transmitted using a single antenna port. A system frame contains 10 subframes, each of which contains 2 slots. 1 is a schematic diagram of a conventional cyclic prefix in a slot of the related art. As shown in FIG. 1, for a normal Cyclic Prefix (Normal CP), each slot is composed of 6 data symbols and 1 slot. The demodulation reference signal is composed of. 2 is a schematic diagram of an extended cyclic prefix in a slot of the related art. For an extended Cyclic Prefix (Extended Cyclic Prefix), each slot is composed of 5 data symbols and 1 demodulation reference signal. .

The demodulation reference signal DMRS consists of a sequence in the frequency domain, which is a cyclic shift of the reference signal sequence. In order to randomize the inter-cell interference, the reference signal sequence of the demodulation reference signal may be based on the network side configuration, and may implement a sequence-based sequence hopping or a group hopping, which is also called a time slot. Sequence Group Hopping (SGH) mode. That is, according to the network side configuration, a demodulation reference signal of a user equipment on two time slots in one subframe is different, and varies with a time slot in a system frame according to a certain jump pattern.

在一个无线帧内，n_s＝0,1,...,19；

由高层参数配置，

由上行调度信息配置。n_PRS(n_s)由伪随机生成器生成，是随时隙n_s变化的参量，具体表示为

其中，

为一个时隙内包含的上行时域符号数，伪随机序列生成器在每个无线帧初始化一次，初始条件为

其中，

为小区ID，

为PUSCH的序列移位图样，初始化值与所属的小区ID有关，为小区专有的参数。In the time slot n _s , the cyclic shift amount α of the demodulation reference signal is: α=2πn _cs /12, where

Within a radio frame, n _s =0, 1, ..., 19;

Configured by high-level parameters,

Configured by the uplink scheduling information. n _PRS (n _s ) is generated by a pseudo-random generator and is a parameter that varies with the time slot n _s and is expressed as

among them,

For the number of uplink time domain symbols included in one slot, the pseudo random sequence generator is initialized once for each radio frame, and the initial condition is

among them,

For the cell ID,

For the sequence shift pattern of the PUSCH, the initialization value is related to the cell ID to which it belongs, and is a cell-specific parameter.

The uplink scheduling information is carried by the network side to the target user equipment in a certain downlink control information format (Downlink Control Information Format, DCI format). In the LTE system, the downlink control information format is divided into the following types: DCI format 0, 1, 1A, 1B, 1C, 1D, 2, 2A, 3, 3A, etc., wherein DCI format 0 includes uplink scheduling information, and is used for Indicates the scheduling of the physical uplink shared channel PUSCH.

The LTE-Advanced system (referred to as LTE-A system for short) is a next-generation evolution system of the LTE system. In the LTE-A system, when the physical uplink shared channel is transmitted by using multiple antenna ports, the DMRS of each layer of data is precoded in the same manner as the data of each layer. Demodulation reference signals of different layer data, including demodulation reference signals of multi-layer data of the same user equipment of Single Multiple-Input Multiple Output (SU-MIMO), and multi-user multi-user Multi-User Multiple-Input Multiple Output (MU-MIMO) multi-layer data demodulation reference signal of multiple user equipments, cyclic shift by using different demodulation reference signals (Cyclic Shift, referred to as Orthogonalization is performed for CS) and/or Orthogonal Cover Code (OCC) to distinguish different layer data of user space multiplexing or to distinguish different users. The orthogonal mask OCC may be [+1, +1] and [+1, -1], and acts on the demodulation reference signals on two slots (Slots) within one subframe. For MU pairing users with unequal bandwidth, only OCC can be used to orthogonalize different users. Therefore, in the related art, the number of supported MU pairing users can only be up to 2.

和[w^(λ)(0) w^(λ)(1)]映射表。Currently, in the standard version developed by The 3rd Generation Partnership Project (3GPP), the LTE standard is version 8 (Release 8) and Release 9 (Release 9), LTE-A. The standard version is Release 10 (Release 10), abbreviated as Rel-8, Rel-9 and Rel-10, respectively, and the LTE-A standard may also include subsequent versions, such as Rel-11/12/13/14. In the current Rel-10 version, the network side can indicate the cyclic shift/OCC information of the demodulation reference signal for the scheduled PUSCH through DCI format 0 and DCI format 4, as shown in Table 1, Table 1 is the uplink related DCI. Format of the cyclic shift region

And [w ^(λ) (0) w ^(λ) (1)] mapping table.

Table 1

When the orthogonal reference mask OCC is used to orthogonalize the demodulation reference signal, the network side needs to jointly detect the demodulation reference signals on the two slots in one subframe, thus requiring one user equipment to be in one subframe. The demodulation reference signals on the time slots must be the same. In this case, the SGH method of slot jump in the LTE system cannot be used. However, in order to randomize inter-cell interference as much as possible, a SGH method of sub-frame jump is proposed in the related art. That is, according to the network side configuration, the demodulation reference signals of one user equipment on two time slots in one subframe are the same, and the demodulation reference signals on each subframe in a system frame are different, according to a certain The jump pattern changes with the sub-frame within a system frame.

In the future LTE-A Release 14 (LTE-A Release 14) study, in the scenario of configuring MIMO (Full Dimension-MIMO, FD-MIMO for short) or MIMO (Massive-MIMO) for a large number of antennas, With more and more users, the demand for uplink MU pairing will further increase, especially for MU pairing users with unequal bandwidth. Therefore, how to further enhance the multiplexing function of the uplink DMRS is an urgent problem to be solved.

In response to the above question, an effective solution has not been proposed in the related art.

Summary of the invention

The present invention provides a method and an apparatus for transmitting an uplink demodulation reference signal DMRS, so as to at least solve the problem that the multiplexing function of the uplink DMRS cannot be enhanced in the related art.

According to an aspect of the present invention, a method for transmitting an uplink demodulation reference signal DMRS is provided, including: configuring parameters required for a terminal to send an uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift Bit, uplink DMRS orthogonal mask, frequency comb index of the uplink DMRS, orthogonal mask enable control bit, segment generation DMRS sequence indication identifier, number of frequency combs of the uplink DMRS; sending the configured parameters to the location The terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter.

Optionally, sending the configured parameter to the terminal includes: sending the configured parameter to the terminal by using downlink control signaling and/or high layer signaling.

Optionally, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index indicating the uplink DMRS is valid; when the number of frequency combs of the uplink DMRS is not configured or configured When the number of frequency combs of the uplink DMRS is set to 1, the frequency comb index indicating the uplink DMRS is invalid.

Optionally, the sending, by the downlink control signaling, the configured parameter to the terminal includes: jointly indicating, by using the downlink control signaling, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and The uplink DMRS Frequency combing index; or, by the downlink control signaling, jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask; and sending the downlink control signaling to the terminal.

Optionally, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS by using the downlink control signaling, including: performing 3-bit or 4-bit downlink control signaling The joint indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS.

Optionally, the frequency comb index indicating that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS are jointly indicated by the 3-bit downlink control signaling includes at least one of: when the frequency of the DMRS When the comb index includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. Frequency comb index, wherein the frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, An uplink DMRS orthogonal mask and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; when a frequency comb index of the DMRS includes 0, 1, 2, and 3, One or more of the eight states indicated by the bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the uplink The frequency comb index of the DMRS is 0; or, pass One or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where The frequency comb index of the uplink DMRS is 1; or the one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 2; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift a bit, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 3.

Optionally, the frequency comb index indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS jointly by the 4-bit downlink control signaling includes at least one of: when the uplink DMRS When the frequency comb index includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink. a frequency comb index of the DMRS, wherein the frequency comb index of the uplink DMRS is 0; or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, a frequency comb index of the uplink DMRS and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; when a frequency comb index of the DMRS includes 0, 1, 2, and 3, One or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the The frequency comb index of the uplink DMRS is 0; or The one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where The frequency comb index of the uplink DMRS is 1; or the one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. And a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 2; or one or more of 16 states indicated by 4-bit downlink control signaling jointly indicate the uplink DMRS a cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 3.

Optionally, jointly indicating, by the downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, including: jointly indicating, by using 3-bit downlink control signaling, the uplink DMRS cyclic shift and the Uplink DMRS orthogonal mask; or jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask by 4-bit downlink control signaling.

Optionally, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by 3-bit downlink control signaling, the method includes at least one of: when the uplink DMRS orthogonal mask Including [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [+1, -1, -1, +1], the one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where The uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift Bit and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or 8 states represented by 3-bit downlink control signaling One or more of the joints instructing the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1] Or, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS Shifting and the uplink DMRS orthogonal mask, wherein the DMRS orthogonal mask is [+1, -1, -1, +1]; when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1 And indicating, by one or more of the eight states represented by the 3-bit downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask The code is [+1, +1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink a DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one of eight states represented by 3-bit downlink control signaling or The plurality of joints indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or, by 3 One or more of the eight states indicated by the bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS is positive The mask is [-1, +1, +1, -1]; when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1 , -1], [-1, -1, +1, +1], [+1, -1, -1, +1], one of eight states represented by 3-bit downlink control signaling Or a plurality of joint indications of the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or One or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+ 1,-1,+1,-1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask a code, wherein the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or one or more joint indications of eight states represented by 3-bit downlink control signaling The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, -1, +1].

Optionally, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by 4-bit downlink control signaling, the method includes: in 16 states represented by 4-bit downlink control signaling One or more joints indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); or, the one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS The cyclic shift is (5, 11, 8, 2) or (5, 11, 2, 8); or, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink a DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (7, 1, 4, 10) or (7, 1, 10, 4); or, through 4-bit downlink One or more of the 16 states indicated by the control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (11, 5, 2) , 8) or (11, 5, 8, 2).

Optionally, the sending, by the high layer signaling, the configured parameter to the terminal includes: sending, by using the high layer signaling, a configured 4-bit orthogonal mask enable control bit to the terminal; Wherein, when the 4-bit orthogonal mask enable control bit is not configured or is not enabled, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1 , +1] or [+1, +1].

Optionally, the sending, by the high layer signaling, the configured parameter to the terminal includes: sending, by using the high layer signaling, the configured segment generation DMRS sequence indication identifier to the terminal, where When the segment generation DMRS sequence indication flag is not configured or is in an invalid state, it indicates that the terminal generates the uplink DMRS based on the same parameter used to generate the uplink DMRS sequence on each segment of the scheduled frequency band. a sequence; when the segment generation DMRS sequence indication flag is configured or in an active state, indicating that the terminal generates, according to different parameters for generating the uplink DMRS sequence, on each segment of the scheduled frequency band And an uplink DMRS sequence, where the parameter used to generate the uplink DMRS sequence includes at least one of the following: a virtual cell identifier ID, a sequence group number, and a base sequence number.

According to another aspect of the present invention, a method for transmitting an uplink demodulation reference signal DMRS is provided, comprising: receiving a parameter required by a base station to send an uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cycle Shifting, uplink DMRS orthogonal mask, frequency comb index of uplink DMRS, orthogonal mask enable control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS; generating the uplink DMRS, and according to The parameter sends the uplink DMRS.

Optionally, receiving the parameter required by the base station to send the uplink DMRS includes: receiving, by the base station, the parameter sent by using downlink control signaling and/or high layer signaling.

Optionally, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index indicating the uplink DMRS is valid; when the number of frequency combs of the uplink DMRS is not configured or configured When the number of frequency combs of the uplink DMRS is set to 1, the frequency comb index indicating the uplink DMRS is invalid.

Optionally, the receiving, by the base station, the parameter that is sent by using the downlink control signaling, is: receiving the downlink control signaling sent by the base station, where the downlink control signaling is used to jointly indicate the uplink DMRS cycle. a shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS; or the downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask.

Optionally, receiving the downlink control signaling sent by the base station includes: receiving 3-bit or 4-bit downlink control signaling sent by the base station, where the 3-bit or 4-bit downlink control signaling is used for joint And indicating a frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS.

Optionally, the 3-bit downlink control signaling is used to jointly indicate that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS include at least one of the following: When the frequency comb index of the uplink DMRS includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. And a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink a DMRS cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; when a frequency comb index of the uplink DMRS includes 0, 1, At 2 and 3, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS frequency. Comb index, wherein the frequency comb index of the uplink DMRS Or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb of the uplink DMRS. An index, where the frequency comb index of the uplink DMRS is 1; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink a frequency comb index of the DMRS orthogonal mask and the uplink DMRS, where a frequency comb index of the uplink DMRS is 2; or one or more of 8 states represented by the 3-bit downlink control signaling And jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 3.

Optionally, the 4-bit downlink control signaling is used to jointly indicate that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS include at least one of the following: When the frequency comb index of the DMRS includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS a cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 1; when a frequency comb index of the DMRS includes 0, 1, 2, and At 3:00, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS. , wherein the frequency comb index of the uplink DMRS is 0; or And one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where The frequency comb index of the uplink DMRS is 1; or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, and the uplink DMRS orthogonal a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 2; or one or more of the 16 states indicated by the 4-bit downlink control signaling The uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 3.

Optionally, receiving the downlink control signaling sent by the base station includes: receiving 3-bit downlink control signaling sent by the base station, where the 3-bit downlink control signaling is used to jointly indicate the uplink DMRS cycle Shifting and the uplink DMRS orthogonal mask; or receiving 4-bit downlink control signaling sent by the base station, where the 4 bits are The row control signaling is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask.

Optionally, when receiving the 3-bit downlink control signaling sent by the base station, the method includes at least one of the following: when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [+1, -1, -1, +1], the 3 One or more of the eight states indicated by the bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [ +1, +1, +1, +1]; or, one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink a DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1]; or one of 8 states represented by the 3-bit downlink control signaling Or a plurality of means for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1]; or And one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the upper a DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, -1, +1]; when the uplink DMRS orthogonal mask includes [+1, +1, +1 , +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1], One or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the An uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one of eight states represented by the 3-bit downlink control signaling Or a plurality of indicators for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], Or the one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the upper The DMRS orthogonal mask is [-1, +1, +1, -1]; when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1 , +1, -1], [-1, -1, +1, +1], [+1, -1, -1, +1], the eight states indicated by the 3-bit downlink control signaling One or more of the means for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, + 1] or, the one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where The uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink a DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or the 3-bit downlink control signaling representation One or more of the eight states are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, -1, +1].

Optionally, when receiving the 4-bit downlink control signaling sent by the base station, the method includes: using one or more of the 16 states indicated by the 4-bit downlink control signaling for a joint indication The uplink DMRS cyclic shift and the foregoing DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); One or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (5, 11, 8, 2) or (5, 11, 2, 8); or, one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS a cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (7, 1, 4, 10) or (7, 1, 10, 4); or, the 4-bit downlink One or more of the 16 states indicated by the control signaling are used for joint indication The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (11, 5, 2, 8) or (11, 5, 8, 2).

Optionally, receiving the parameter that is sent by the base station by using the high-layer signaling, including: receiving a 4-bit orthogonal mask enable control bit sent by the base station by using the high-layer signaling, where When the 4-bit orthogonal mask enable control bit is not configured or is not enabled, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1, +1] or [ +1, +1].

Optionally, the receiving, by the base station, the parameter that is sent by using the high-layer signaling, includes: receiving, by the base station, high-layer signaling, where the high-layer signaling is used to indicate that the segment generates a DMRS sequence indicator. When it is determined that the high layer RRC signaling indicates that the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, based on the same used to generate the uplink DMRS sequence on each segment of the scheduled frequency band Generating the uplink DMRS sequence; and/or, when determining that the RRC signaling indicates that the segment generation DMRS sequence indicator is configured or in an active state, based on different segments of the scheduled frequency band The parameter for generating the uplink DMRS sequence generates the uplink DMRS sequence, where the parameter used to generate the uplink DMRS sequence includes at least one of the following: a virtual cell identifier ID, a sequence group number, and a base sequence number.

According to another aspect of the present invention, a device for transmitting an uplink demodulation reference signal DMRS is provided, including: a configuration module, configured to configure a parameter required for a terminal to send an uplink DMRS, where the parameter includes at least the following A: uplink DMRS cyclic shift, uplink DMRS orthogonal mask, frequency comb index of uplink DMRS, orthogonal mask enable control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS, and sending module, The parameter is configured to send the configured parameter to the terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter.

According to another aspect of the present invention, a device for transmitting an uplink demodulation reference signal DMRS is provided, including: a receiving module, configured to receive a parameter required by a base station to send an uplink DMRS, where the parameter includes at least the following A: uplink DMRS cyclic shift, uplink DMRS orthogonal mask, frequency comb index of uplink DMRS, orthogonal mask enable control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS; processing module, The method is configured to generate the uplink DMRS, and send the uplink DMRS according to the parameter.

According to still another embodiment of the present invention, there is also provided a storage medium comprising a stored program, wherein the program is executed to perform the method of any of the above.

According to still another embodiment of the present invention, there is also provided a processor for running a program, wherein the program is executed to perform the method of any of the above.

According to the present invention, the terminal can configure the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, the frequency comb index of the uplink DMRS, the orthogonal mask enable control bit, the segment generation DMRS sequence indication identifier, and the frequency comb of the uplink DMRS. At least one of the number can realize the multiplexing of the uplink DMRS under the multi-user, meet the requirement of the uplink multi-user pairing, and solve the problem that the multiplexing function of the uplink DMRS cannot be enhanced in the related technology, and the implementation is achieved. The multiplexing function of the uplink DMRS is enhanced to meet the requirement of uplink multi-user pairing.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a conventional cyclic prefix in one slot of the related art;

2 is a schematic diagram of an extended cyclic prefix in one slot of the related art;

3 is a flowchart of a method for transmitting a first DMRS according to an embodiment of the present invention;

4 is a flowchart of a method for transmitting a second DMRS according to an embodiment of the present invention;

5 is a schematic diagram of time-frequency resources required for transmitting an uplink DMRS according to Embodiment 1 of the present invention;

6 is a first schematic diagram of time-frequency resources required for transmitting an uplink DMRS according to Embodiment 3 of the present invention;

7 is a second schematic diagram of time-frequency resources required for transmitting an uplink DMRS according to Embodiment 3 of the present invention;

FIG. 8 is a structural block diagram of a first DMRS transmitting apparatus according to an embodiment of the present invention; FIG.

FIG. 9 is a structural block diagram of a second DMRS transmitting apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

A method for transmitting a DMRS is provided in this embodiment. FIG. 3 is a flowchart of a method for transmitting a first DMRS according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302, configuring parameters required for the terminal to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal mask. The number of frequency combs capable of controlling bits, segment generating DMRS sequence indication identifiers, and uplink DMRSs;

Step S304: Send the configured parameter to the terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter.

Wherein, the above operation may be performed by a base station.

Through the foregoing steps, the base station can configure the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, the frequency comb index of the uplink DMRS, the orthogonal mask enable control bit, the segment generation DMRS sequence indication identifier, and the uplink DMRS for the terminal side. At least one of the number of frequency combs ensures that when the number of uplink users is relatively large, the multiplexing capacity of the uplink DMRS is enhanced to ensure successful access of the user, thereby solving the problem that the multiplexing function of the uplink DMRS cannot be enhanced in the related art. The problem has achieved the realization of the multiplexing function of the uplink DMRS, and meets the requirements of uplink multi-user pairing.

In an optional embodiment, in the foregoing step S304, when the configured parameters are sent to the terminal, there may be multiple transmission modes, for example, the downlink control signaling and/or the high layer signaling may be configured. The parameters are sent to the terminal. Of course, the transmission methods listed here are only two examples, and other reasonable transmission methods may also be adopted. Moreover, the signaling used when transmitting the above parameters may be determined according to a specific scenario.

In an optional embodiment, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index is valid (that is, the interleaved frequency division multiple access of the uplink DMRS (Interleaved Frequency Division Multiple) Access, referred to as IFDMA) is enabled; when the number of frequency combs indicates that the message is not configured or the number is configured as 1, it indicates that the frequency comb index is invalid (ie, the IFDMA of the uplink DMRS is not enabled). In an embodiment, whether the frequency comb index is valid is indicated by indicating whether the time domain repetition coefficient of the uplink DMRS is 2 or 4 or 8 is enabled, where the time domain repetition coefficient indicating the uplink DMRS is 2 or 4 When the 8 or 8 is enabled, the frequency comb index is valid. Otherwise, the frequency comb index is invalid. Alternatively, whether the frequency comb index is valid may be indicated by indicating whether the IFDMA of the uplink DMRS is enabled. When the IFDMA of the uplink DMRS is enabled, the above frequency comb is valid. Otherwise, the above frequency comb index is invalid. The above three indication methods are similar. In use, the index may indicate a frequency comb is valid to use only one of the above-described manner.

In an optional embodiment, in the foregoing step S304, the configured parameters may be sent to the terminal by using downlink control signaling. In this embodiment, the uplink DMRS cyclic shift may be jointly indicated by using downlink control signaling. The uplink DMRS orthogonal mask and the frequency comb index of the uplink DMRS are used; or the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by the downlink control signaling; and the downlink control signaling is sent to the terminal. Therefore, in this implementation, the joint indication of the multiple parameters may be performed by using downlink control signaling, thereby avoiding multiple signaling interactions with the terminal, saving time and resources.

In an optional embodiment, when the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS are jointly indicated by the foregoing downlink control signaling, the following indication manner may be adopted: The bit or 4-bit downlink control signaling jointly indicates the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. In this embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by the 3-bit or 4-bit downlink control signaling, the indication manner in the related art may be used for indication.

In an optional embodiment, when the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS are jointly indicated by the 3-bit downlink control signaling, the at least One of the indications is that when the frequency comb index of the DMRS includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask. a frequency comb index of the code and the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift, a frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the 3-bit downlink control signaling is adopted. The one or more of the eight states indicated jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or, by 3 Under the bit One or more of the eight states indicated by the row control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the uplink DMRS The frequency comb index is 1; or, the one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, The frequency comb index of the uplink DMRS is 2; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS. The frequency comb index, wherein the frequency comb index of the uplink DMRS is 3.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 4-bit downlink control signaling, the at least one of the following manners can be performed. The indication: when the frequency comb index of the uplink DMRS includes 0 and 1, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by one or more of the 16 states indicated by the 4-bit downlink control signaling. a frequency comb index of the code and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 0, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift The frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the 4-bit downlink control signal may be adopted. And causing one or more of the indicated 16 states to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb of the uplink DMRS The frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by one or more of the 16 states indicated by the 4-bit downlink control signaling, where The frequency comb index of the uplink DMRS is 1, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. a frequency comb index, wherein the frequency comb index of the uplink DMRS is 2, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal A frequency comb index of the mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 3. For specific indication manners, refer to Table 1 and Table 2 in the specific embodiments described later.

In an optional embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the downlink control signaling, the following indication manner may be adopted: jointly indicating the foregoing uplink DMRS by using 3-bit downlink control signaling. The cyclic shift and the uplink DMRS orthogonal mask; or, jointly, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by 4-bit downlink control signaling. The following describes how to perform joint indication of uplink DMRS cyclic shift and uplink DMRS orthogonal mask by control signaling:

In an optional embodiment, the DMRS orthogonal mask may be four bits. When the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the 3-bit downlink control signaling, the following manner may be adopted. One of the indications: when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1 When -1], [+1, -1, -1, +1], the uplink DMRS cyclic shift and the uplink DMRS may be jointly indicated by one or more of the eight states indicated by the 3-bit downlink control signaling. An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or is represented by 3-bit downlink control signaling One or more of the eight states jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or One or more joint indications of eight states represented by 3-bit downlink control signaling OK DMRS cyclic shift and orthogonal cover uplink DMRS, wherein the uplink DMRS The orthogonal mask is [+1, -1, -1, +1]; when the DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1], one of eight states that can be represented by 3-bit downlink control signaling Or a plurality of joint indication uplink DMRS cyclic shift and uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or, by a 3-bit downlink control signal Having one or more of the eight states indicated jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, +1, -1 Or, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+ 1, +1, -1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where The uplink DMRS orthogonal mask is [-1, +1, +1, -1]; when the DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, When +1, -1], [-1, -1, +1, +1], [+1, -1, -1, +1], One or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1 , +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS is positive The cross-mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate that the uplink DMRS cyclic shift and the uplink DMRS are positive. a cross-mask, wherein the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or one or more of the eight states represented by 3-bit downlink control signaling are combined Indicates an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, -1, +1].

In an optional embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the 4-bit downlink control signaling, the following indication manner may be adopted: it may be represented by 4-bit downlink control signaling. One or more of the 16 states jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); or, the one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift Or (5,11,8,2) or (5,11,2,8); or, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift And an uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (7, 1, 4, 10) or (7, 1, 10, 4); or 16 types represented by 4-bit downlink control signaling One or more of the states jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (11, 5, 2, 8) or (11, 5, 8, 2). It should be noted that the indication manners in the foregoing embodiments are performed in several examples, and other reasonable indication manners may also be used for indication.

In an optional embodiment, in the foregoing step S304, the configured parameters may be sent to the terminal by using the high layer signaling, where the orthogonal mask enable control bit in the parameter may be orthogonal to 4 bits long. The mask enable control bit, and the 4-bit long orthogonal mask enable control bit can have two states, one is that the 4-bit long orthogonal mask enable control bit is configured or enabled, The 4-bit orthogonal mask enable control bit is not configured or disabled. Therefore, in actual application, the specific status of the 4-bit orthogonal mask enable control bit can be notified to the terminal. Optionally, the configured 4-bit orthogonal mask enable control bit can be sent to the terminal by high layer signaling, wherein when the 4-bit orthogonal mask enable control bit is not configured or When not enabled, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1, +1] or [+1, +1]. That is, in the present embodiment, when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, the DMRS orthogonal mask can be configured as [+1, +1, +1, + 1] or [+1, +1] mode, which can be indicated by The base station and the terminal negotiate in advance, or configure the indication mode for the terminal.

In an optional embodiment, in the foregoing step S304, the configured parameters may be sent to the terminal by using the high layer signaling, where the parameter may include a segment generation DMRS sequence indication identifier, and the segment generates a DMRS. The sequence indication identifier includes two states, one is an unconfigured or invalid state, and the other is a configured or valid state. When the segment generation DMRS sequence indication identifier is notified to the terminal by high layer signaling, the segment generation may be performed. The DMRS sequence indicates the status of the identifier to the terminal. Optionally, when the configured DMRS sequence indication identifier is sent to the terminal, the DMRS sequence may be sent by using the following method: generating the DMRS sequence by using the high layer signaling. The indication identifier is sent to the terminal, where when the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, it indicates that the terminal is based on the same used to generate the uplink DMRS sequence on each segment of the scheduled frequency band. The parameter generates an uplink DMRS sequence; when the segment generation DMRS sequence indicator is configured or is valid The above-mentioned terminal is configured to generate the uplink DMRS sequence based on different parameters for generating an uplink DMRS sequence on each segment of the scheduled frequency band. The parameter for generating the uplink DMRS sequence includes at least one of the following: Cell ID, sequence group number, base sequence number.

A method for transmitting a DMRS is also provided in this embodiment. FIG. 4 is a flowchart of a method for sending a second DMRS according to an embodiment of the present invention. As shown in FIG. 4, the process includes the following steps:

Step S402, receiving parameters required for transmitting the uplink DMRS configured by the base station, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal mask The number of frequency combs capable of controlling bits, segment generating DMRS sequence indication identifiers, and uplink DMRSs;

Step S404, generating the uplink DMRS, and sending an uplink DMRS according to the foregoing parameter.

Wherein, the above operation may be performed by the terminal.

Through the foregoing steps, the base station can configure the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, the frequency comb index of the uplink DMRS, the orthogonal mask enable control bit, the segment generation DMRS sequence indication identifier, and the uplink DMRS for the terminal side. At least one of the number of frequency combs ensures that when the number of uplink users is relatively large, the multiplexing capacity of the uplink DMRS is enhanced to ensure successful access of the user, thereby solving the problem that the multiplexing function of the uplink DMRS cannot be enhanced in the related art. The problem has achieved the realization of the multiplexing function of the uplink DMRS, and meets the requirements of uplink multi-user pairing.

In an optional embodiment, when receiving the parameters required for sending the uplink DMRS configured by the base station, the method may include: receiving, by the base station, the foregoing parameters sent by using downlink control signaling and/or high layer signaling. That is, the base station may send the foregoing parameters by using downlink control signaling and/or high-layer signaling. Of course, the transmission manners of the base stations listed herein are only two examples, and other reasonable transmission methods may also be adopted. Moreover, the signaling used when transmitting the above parameters may be determined according to a specific scenario.

In an optional embodiment, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index is valid (that is, the interleaved frequency division multiple access of the uplink DMRS (Interleaved Frequency Division Multiple) Access, referred to as IFDMA) is enabled; when the number of frequency combs indicates that the message is not configured or the number is configured as 1, it indicates that the frequency comb index is invalid (ie, the IFDMA of the uplink DMRS is not enabled). Example And determining, by the base station, whether the time domain repetition coefficient of the uplink DMRS sent by the base station is 2 or 4 or 8 is enabled to determine whether the frequency comb index is valid, where the time domain repetition coefficient indicating the uplink DMRS is 2 or When the 4 or 8 is enabled, it indicates that the frequency comb index is valid. Otherwise, the frequency comb index is invalid. Alternatively, the indication message indicating whether the interleaved frequency division multiple access of the uplink DMRS is enabled by the base station may be received to determine the frequency. Whether the comb index is valid, wherein the frequency comb is valid when the interleaving frequency division multiple access of the uplink DMRS is enabled, otherwise, the frequency comb index is invalid. The above three indication manners are similar. In actual use, it is possible to indicate whether the frequency comb index is valid using only one of the above manners.

In an optional embodiment, in the foregoing step S402, the foregoing parameters that are received by the base station by using the downlink control signaling may include: receiving downlink control signaling sent by the base station; where the downlink control signaling is used. The uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS are jointly indicated; or the downlink control signaling is used to jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask. Therefore, in this implementation, the base station can use the downlink control signaling to perform the joint indication of the multiple parameters, thereby avoiding multiple signaling interactions between the base station and the terminal, saving time and resources.

In an optional embodiment, receiving the downlink control signaling sent by the base station includes: receiving 3-bit or 4-bit downlink control signaling sent by the base station, where the 3-bit or 4-bit downlink control signaling is used for joint The frequency comb index indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. In this embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by the 4-bit downlink control signaling, the indication manner in the related art may be used for indication.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 3-bit downlink control signaling, the at least one of the following manners can be performed. Instructing: when the frequency comb index of the uplink DMRS includes 0 and 1, one or more of the eight states indicated by the foregoing 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS And a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the uplink DMRS includes 0, 1, 2, and 3, the 3-bit downlink control signaling indicates One or more of the eight states jointly indicate an uplink comb DM cyclic shift, an uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or, the above 3 bits The one or more of the eight states indicated by the downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 1. Or the one or more of the eight states indicated by the foregoing 3-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency of the uplink DMRS The comb index is 2; or one or more of the 8 states indicated by the foregoing 3-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where The frequency comb index of the uplink DMRS is 3.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 4-bit downlink control signaling, the at least one of the following manners can be performed. Means It is shown that when the frequency comb index of the DMRS includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask. And a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0, or one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate an uplink DMRS cyclic shift, The frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the 4-bit downlink control signaling representation One or more of the 16 states are used to jointly indicate a frequency comb index indicating an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS, where the frequency comb index of the uplink DMRS is 0, or, 4 One or more of the 16 states indicated by the bit downlink control signaling are used to jointly indicate a frequency comb index indicating an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS, where the frequency comb index of the uplink DMRS Is 1, or 4 bits One or more of the 16 states indicated by the row control signaling are used to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 2, or one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the uplink The frequency comb index of the DMRS is 3. For specific indication manners, refer to Table 1 and Table 2 in the specific embodiments described later.

In an optional embodiment, when receiving the downlink control signaling sent by the base station, the method may include: receiving 3-bit downlink control signaling sent by the base station, where the 3-bit downlink control signaling is used to jointly indicate the foregoing Uplink DMRS cyclic shift and uplink DMRS orthogonal mask; or receiving 4-bit downlink control signaling sent by the base station, where the 4-bit downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift and uplink DMRS orthogonal mask.

In an optional embodiment, when receiving the 3-bit downlink control signaling sent by the base station, the foregoing method includes at least one of the following: when the uplink DMRS orthogonal mask includes [+1, +1, +1, + 1], [+1, -1, +1, -1], [+1, +1, -1, -1], [+1, -1, -1, +1], the above 3-bit downlink One or more of the eight states indicated by the control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink The DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift. Bit and uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or one of the eight states indicated by the above 3-bit downlink control signaling Or multiple for jointly indicating the above uplink DMRS cyclic shift and uplink DMRS orthogonal mask, The uplink DMRS orthogonal mask is [+1, -1, -1, +1]; when the DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1], 8 types of the above 3-bit downlink control signaling One or more of the states are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], Alternatively, one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [ +1, -1, +1, -1], or one or more of the eight states indicated by the above 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. a code, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling are used for joint Indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [-1, +1, +1, -1]; when the DMRS orthogonal mask includes [+ 1, +1, +1, +1], [+1, -1, +1, -1], [-1, -1, +1, +1], [+1, -1, -1, +1], one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. a code, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states represented by the 3-bit downlink control signaling are used for joint Instructing the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or the above 3-bit downlink control signaling One or more of the eight states are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [-1, -1, +1, +1 Or, one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask Is [+1, -1, -1, +1]. In this embodiment, when the base station jointly indicates the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask through the 3-bit downlink control signaling, the base station may perform the indication of the uplink DMRS cyclic shift in the manner of the related art.

In an optional embodiment, when receiving the 4-bit downlink control signaling sent by the base station, the method includes: one or more of the 16 states indicated by the 4-bit downlink control signaling being used for the joint indication. The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); or, the above 4-bit downlink control One or more of the 16 states indicated by the signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (5, 11, 8, 2) Or (5, 11, 2, 8); or, one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, The uplink DMRS cyclic shift is (7, 1, 4, 10) or (7, 1, 10, 4); or one or more of the 16 states indicated by the 4-bit downlink control signaling. The method is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (11, 5, 2, 8) or (11, 5, 8, 2). In this embodiment, when the base station jointly indicates the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask through the 4-bit downlink control signaling, the base station may perform the indication of the uplink DMRS orthogonal mask by using the method in the related art. It should be noted that the indication manners in the foregoing embodiments are performed in several examples, and other reasonable indication manners may also be used for indication.

In an optional embodiment, in the foregoing step S402, when receiving the foregoing parameter sent by the base station by using the high layer signaling, the method may include: receiving a 4-bit orthogonal mask enabling by the base station by using the high layer signaling. Control bit, wherein when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1, + 1] or [+1, +1]. That is, in the present embodiment, when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, the DMRS orthogonal mask can be configured as [+1, +1, +1, + 1] or [+1, +1] indicates that the indication mode can be negotiated in advance by the base station and the terminal, or the indication mode is configured for the terminal.

In an optional embodiment, in the foregoing step S402, receiving the foregoing parameter that is sent by the base station by using the high layer signaling may include: receiving, by the base station, high layer signaling, where the high layer signaling is used to indicate segment generation. a DMRS sequence indication identifier; when it is determined that the foregoing high layer RRC signaling indicates that the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, based on the same used to generate the uplink on each segment of the scheduled frequency band The parameters of the DMRS sequence generate the uplink DMRS sequence; and/or, when it is determined that the RRC signaling indicates that the segment generation DMRS sequence indication identifier is configured or in an active state, based on each segment of the scheduled frequency band The parameters for generating the uplink DMRS sequence are used to generate an uplink DMRS sequence. The parameters for generating the uplink DMRS sequence include at least one of the following: a virtual cell identifier ID, a sequence group number, and a base sequence number.

The following describes the present invention by taking a base station as a terminal to configure parameters required for sending an uplink DMRS according to a specific embodiment:

Example 1

In this embodiment, the network side base station configures parameters required for transmitting the uplink demodulation reference signal DMRS for the user terminal (the same terminal as above), and notifies the user terminal of the configured parameters by using downlink control signaling or high layer signaling. ; this parameter can include:

Frequency comb index of the uplink DMRS.

Optionally, the foregoing base station indicates, by using downlink control signaling or high layer signaling, whether the time domain repetition coefficient of the uplink DMRS is 2 or 4 or 8, or whether the interleaved frequency division multiple access IFDMA of the uplink DMRS is enabled, or Whether the number of frequency combs of the uplink DMRS is 2 or 4 or 8. A schematic diagram of IFDMA is shown in Figure 5.

When the base station is not configured or indicates that the time domain repetition coefficient of the uplink DMRS is 2 or 4 or 8, or is not configured or indicates whether the interleaved frequency division multiple access of the uplink DMRS is enabled, or whether the number of frequency combs of the uplink DMRS is not configured or indicated When 2 or 4 or 8, the uplink DMRS has a time domain repetition coefficient of 1 or a frequency comb number of 1.

Assume that the uplink multiplexes 4 users, namely User 1, User 2, User 3, and User 4, where User 4 is an old version user before Rel-13, and the number of frequency combs is 1, User 1, User 2, and User 3 For new users after Rel-14 or Rel-14, it is assumed that the number of frequency combs for configuring their upstream DMRS is 4. When four different versions of users are spatially multiplexed, the orthogonality of uplink DMRS between users is maintained. OCC can be used to orthogonalize different versions of users, and new versions of users can use different frequency combs for orthogonality. For example, the uplink DMRSs of User 1, User 2, and User 3 all use OCC[+1, +1], User 1 uses comb 0, User 2 uses comb1, User 3 uses comb 2, and User 4's upstream DMRS uses OCC. [+1,-1]. Thus, uplink DMRS orthogonality can be implemented between four different versions of users.

Example 2

In this embodiment, the network side base station configures parameters required for transmitting the uplink demodulation reference signal DMRS for the user terminal, and notifies the configured terminal to the user terminal by using downlink control signaling or high layer signaling (corresponding to the foregoing Terminal); this parameter can include:

Uplink spatial multiplexing DMRS cyclic shift of each layer or first layer (corresponding to the above uplink DMRS cyclic shift), uplink spatial multiplexing layer or first layer DMRS orthogonal mask (corresponding to the above uplink DMRS orthogonal) Mask), frequency comb index of the upstream DMRS.

Optionally, the foregoing base station may jointly indicate the uplink DMRS cyclic shift and the frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS by using downlink control signaling, for example, using Table 2 or Table 3 or Table 4 or Table 5 Ways to make joint instructions:

Table 2

table 3

Table 4

table 5

Example 3

In this embodiment, the network side base station configures parameters required for transmitting the uplink demodulation reference signal DMRS for the user terminal (corresponding to the foregoing terminal), and notifies the user of the configured parameters by using downlink control signaling or high layer signaling. Terminal The above parameters can include:

Uplink spatial multiplexing DMRS cyclic shift of each layer or first layer (corresponding to the above-mentioned DMRS cyclic shift), uplink spatial multiplexing layer or first layer DMRS orthogonal mask (corresponding to the above DMRS orthogonal) Mask). The uplink DMRS orthogonal mask may be a 4-bit long uplink DMRS orthogonal mask.

In this embodiment, the time-frequency resources required for transmitting the uplink DMRS may include the following two methods:

method one:

As shown in FIG. 6, the time-frequency resource includes a time domain location and a frequency domain location.

Wherein, the above time domain location comprises:

When the subframe carrying the uplink DMRS is a regular cyclic prefix, the time domain location is the second time domain symbol and the sixth time domain symbol of each time slot of the subframe, or is each time slot of the subframe. The third time domain symbol and the fifth time domain symbol; when the subframe carrying the uplink DMRS is an extended cyclic prefix, the time domain position is the second time domain symbol and the fifth of each time slot of the subframe Time domain symbol.

The above frequency domain locations include:

The index on the PUSCH bandwidth occupied by the user terminal is an odd subcarrier position, or the index is an even subcarrier position; or the upper half bandwidth subcarrier position or the lower half bandwidth subcarrier position on the PUSCH occupied by the user terminal. ;

Or, the index on the PUSCH bandwidth occupied by the user terminal is an odd subcarrier position in an odd number of subcarriers (that is, subcarriers in the subcarriers sequentially numbered 1, 5, 9, 13, 17, ...), or an index. Is an even subcarrier position in an odd number of subcarriers (ie, subcarriers sequentially numbered 3, 7, 11, 15, 19 in the subcarriers), or an odd subcarrier position in an even number of subcarriers ( That is, subcarriers with sequential numbers 2, 6, 10, 14, 18, ... in subcarriers, or even subcarrier positions in subcarriers with an even index (ie, sequential numbers 4, 8, in subcarriers) Subcarriers of 12, 16, 20...);

Or all subcarrier positions in a part of the bandwidth on the PUSCH bandwidth occupied by the user terminal.

Method 2:

As shown in FIG. 7, the time-frequency resource includes a time domain location and a frequency domain location.

Wherein, the above time domain location comprises:

When the uplink symbol cyclic prefix length is a normal length, the time domain position is the fourth time domain symbol of each time slot of the subframe; when the uplink symbol cyclic prefix length is the extended length, the time domain position is each of the subframes. The third time domain symbol of the time slot;

The above frequency domain locations include:

All subcarrier locations on the PUSCH bandwidth occupied by the user terminal.

In this embodiment, four time-domain symbols in each subframe of the mode one may be used by using a 4-bit orthogonal mask OCC pair. The upper DMRS performs time domain extension, or the DMRS on the four time domain symbols in every two subframes of the second mode may be time-domain extended using a 4-bit orthogonal mask OCC.

The above 4-bit orthogonal mask OCC may be [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, - 1, -1], [+1, -1, -1, +1]; or [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1]; or [+1, +1, +1, +1], [+1, -1 , +1, -1], [-1, -1, +1, +1], [+1, -1, -1, +1].

Optionally, the foregoing base station may jointly indicate a cyclic shift and an orthogonal mask of the uplink DMRS by using 3-bit or 4-bit downlink control signaling, for example, performing joint indication by using the manner shown in Table 6 or Table 7 or Table 8. .

Table 6

Table 7

Table 8

Example 4

In this embodiment, the network side base station configures parameters required for transmitting the uplink demodulation reference signal DMRS for the user terminal, and notifies the configured terminal to the user terminal by using downlink control signaling or high layer signaling (corresponding to the foregoing Terminal); this parameter can include:

Uplink spatial multiplexing DMRS cyclic shift of each layer or first layer (corresponding to the above uplink DMRS cyclic shift), uplink spatial multiplexing layer or first layer DMRS orthogonal mask (corresponding to the above uplink DMRS orthogonal) Mask).

Optionally, the foregoing base station may jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask by using downlink control signaling, for example, performing joint indication by using the manner shown in Table 9 or Table 10:

Table 9

Table 10

The following is an example of performing uplink MU pairing by using four user terminals (referred to as user 1, user 2, user 3, and user 4) as an example. It is assumed that the uplink symbol cyclic prefix length is an ordinary length, and user 1, user 2, and user 3 and the time domain location occupied by the uplink DMRS of the user 4 is the fourth time domain symbol of each time slot of the subframe, and the frequency domain location is all the subcarrier positions on the PUSCH bandwidth of the user, wherein 4 users The bandwidth of the PUSCH overlaps partially or completely. User 1 uses [+1, +1, +1, +1] to perform time domain extension on DMRS on four time domain symbols in two subframes, and user 2 uses [+1, -1, +1, -1] Time domain expansion of DMRS on four time domain symbols in two subframes, user 3 uses [+1, +1, -1, -1] to perform time domain on DMRS on four time domain symbols in two subframes Extended, user 4 uses [+1, -1, -1, +1] to perform time domain expansion on DMRS on four time domain symbols in two subframes, so that User 1, User 2, User 3, and User 4 Orthogonal pairing can be done.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, a DMRS sending device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 8 is a structural block diagram of a first DMRS transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes a configuration module 82 and a transmitting module 84. The apparatus may be applied to a base station, and the apparatus is Be explained.

The configuration module 82 is configured to configure parameters required for the terminal to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal a mask enable control bit, a segment generation DMRS sequence indicator, and a number of frequency combs of the uplink DMRS; the sending module 84 is connected to the configuration module 82, and configured to send the configured parameters to the terminal, where the parameter is used by And instructing the terminal to send the uplink DMRS according to the foregoing parameter.

In an optional embodiment, the sending module 84 may send multiple parameters to the terminal, for example, the configuration parameters may be configured by using downlink control signaling and/or high layer signaling. Send to the terminal, of course, the transmission methods listed here are only two examples, and other reasonable transmission methods can also be adopted. Moreover, the signaling used when transmitting the above parameters may be determined according to a specific scenario.

In an optional embodiment, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index is valid (that is, the interleaved frequency division multiple access of the uplink DMRS (Interleaved Frequency Division Multiple) Access, referred to as IFDMA) is enabled; when the number of frequency combs indicates that the message is not configured or the number is configured as 1, it indicates that the frequency comb index is invalid (ie, the IFDMA of the uplink DMRS is not enabled). In an embodiment, whether the frequency comb index is valid is indicated by indicating whether the time domain repetition coefficient of the uplink DMRS is 2 or 4 or 8 is enabled, where the time domain repetition coefficient indicating the uplink DMRS is 2 or 4 When the 8 or 8 is enabled, the frequency comb index is valid. Otherwise, the frequency comb index is invalid. Alternatively, whether the frequency comb index is valid may be indicated by indicating whether the IFDMA of the uplink DMRS is enabled. When the IFDMA of the uplink DMRS is enabled, the above frequency comb is valid. Otherwise, the above frequency comb index is invalid. The above three indication methods are similar. In use, the index may indicate a frequency comb is valid to use only one of the above-described manner.

In an optional embodiment, the sending module 84 may send the configured parameters to the terminal by using the downlink control signaling. In this embodiment, the uplink DMRS cyclic shift and uplink may be jointly indicated by the downlink control signaling. The DMRS orthogonal mask and the frequency comb index of the uplink DMRS; or, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by the downlink control signaling; and the downlink control signaling is sent to the terminal. This shows that in this In the implementation, the downlink control signaling may be used to perform the joint indication of the multiple parameters, thereby avoiding multiple signaling interactions with the terminal, saving time and resources.

In an optional embodiment, when the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS are jointly indicated by the foregoing downlink control signaling, the following indication manner may be adopted: The bit or 4-bit downlink control signaling jointly indicates the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. In this embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by the 3-bit or 4-bit downlink control signaling, the indication manner in the related art may be used for indication.

In an optional embodiment, when the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS are jointly indicated by the 3-bit downlink control signaling, the at least One of the indications is that when the frequency comb index of the DMRS includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask. a frequency comb index of the code and the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift, a frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the 3-bit downlink control signaling is adopted. The one or more of the eight states indicated jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or, by 3 Under the bit The one or more of the eight states indicated by the row control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 1. Or, the one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the uplink DMRS is The frequency comb index is 2; or, the one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where The frequency comb index of the uplink DMRS is 3.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 4-bit downlink control signaling, the at least one of the following manners can be performed. The indication: when the frequency comb index of the uplink DMRS includes 0 and 1, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by one or more of the 16 states indicated by the 4-bit downlink control signaling. a frequency comb index of the code and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 0, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift And a frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the downlink combo may be 4 bits. One or more of the 16 states indicated by the control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the uplink DMRS frequency The comb index is 0, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where The frequency comb index of the uplink DMRS is 1, or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. Frequency comb index, wherein the frequency comb index of the above uplink DMRS is 2, or, by 4 bits The one or more of the 16 states indicated by the downlink control signaling jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the frequency comb index of the uplink DMRS is 3 . For specific indication manners, refer to Table 1 and Table 2 in the specific embodiments described later.

In an optional embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the downlink control signaling, the following indication manner may be adopted: jointly indicating the foregoing uplink DMRS by using 3-bit downlink control signaling. The cyclic shift and the uplink DMRS orthogonal mask; or, jointly, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by 4-bit downlink control signaling. The following describes how to perform joint indication of uplink DMRS cyclic shift and uplink DMRS orthogonal mask by control signaling:

In an optional embodiment, the DMRS orthogonal mask may be four bits. When the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the 3-bit downlink control signaling, the following manner may be adopted. One of the indications: when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1 When -1], [+1, -1, -1, +1], the uplink DMRS cyclic shift and the uplink DMRS may be jointly indicated by one or more of the eight states indicated by the 3-bit downlink control signaling. An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or is represented by 3-bit downlink control signaling One or more of the eight states jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or One or more joint indications of eight states represented by 3-bit downlink control signaling Row DMRS cyclic shift and uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, -1, +1]; when the DMRS orthogonal mask includes [+1, +1 , +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1], [-1, +1, +1, -1] The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by one or more of the eight states indicated by the 3-bit downlink control signaling, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink The DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift. And an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or in 8 states represented by 3-bit downlink control signaling One or more joint indications of an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [-1, +1, +1, -1]; when the DMRS is positive The mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [-1, -1, +1, +1], [+1,- When 1,-1,+1], the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask may be jointly indicated by one or more of the eight states indicated by the 3-bit downlink control signaling, where the uplink DMRS The orthogonal mask is [+1, +1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS. An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or is represented by 3-bit downlink control signaling One or more of the eight states jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, -1, +1].

In an optional embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by the 4-bit downlink control signaling, the following indication manner may be adopted: it may be represented by 4-bit downlink control signaling. 16 species One or more of the states jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); or, the one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is ( 5, 11, 8, 2) or (5, 11, 2, 8); or, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and uplink DMRS orthogonal mask, wherein the uplink DMRS is cyclically shifted to (7, 1, 4, 10) or (7, 1, 10, 4); or, in 16 states represented by 4-bit downlink control signaling One or more joints indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (11, 5, 2, 8) or (11, 5, 8, 2) . It should be noted that the indication manners in the foregoing embodiments are performed in several examples, and other reasonable indication manners may also be used for indication.

In an optional embodiment, the sending module 84 may send the configured parameters to the terminal by using high layer signaling, where the orthogonal mask enable control bit in the parameter may be a 4-bit orthogonal mask. The control bit is enabled, and the 4-bit orthogonal mask enable control bit can have two states. One is that the 4-bit orthogonal mask enable control bit is configured or enabled, and the other is The 4-bit orthogonal mask enable control bit is not configured or is not enabled. Therefore, in actual application, the specific status of the 4-bit orthogonal mask enable control bit can be notified to the terminal. Alternatively, the configured 4-bit orthogonal mask enable control bit may be sent to the terminal by high layer signaling, wherein when the 4-bit long orthogonal mask enable control bit is not configured or not When applicable, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1, +1] or [+1, +1]. That is, in the present embodiment, when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, the DMRS orthogonal mask can be configured as [+1, +1, +1, + 1] or [+1, +1] indicates that the indication mode can be negotiated in advance by the base station and the terminal, or the indication mode is configured for the terminal.

In an optional embodiment, the sending module 84 may send the configured parameters to the terminal by using the high layer signaling, where the parameter may include a segment generation DMRS sequence indication identifier, and the segment generates a DMRS sequence indication. The identifier includes two states, one is an unconfigured or invalid state, and the other is a configured or valid state. When the segment generation DMRS sequence indication identifier is notified to the terminal through high layer signaling, the segment may generate a DMRS sequence. The status of the indication identifier is notified to the terminal. Optionally, when the configured segment generation DMRS sequence indication identifier is sent to the terminal, the DMRS sequence indication may be sent by using the high layer signaling indication to generate the DMRS sequence indication. The identifier is sent to the terminal, where when the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, it indicates that the terminal is based on the same parameter used to generate the uplink DMRS sequence on each segment of the scheduled frequency band. Generating an uplink DMRS sequence; when the segment generation DMRS sequence indicator is configured or is valid The above-mentioned terminal is configured to generate the uplink DMRS sequence based on different parameters for generating an uplink DMRS sequence on each segment of the scheduled frequency band. The parameter for generating the uplink DMRS sequence includes at least one of the following: Cell ID, sequence group number, base sequence number.

FIG. 9 is a structural block diagram of a second DMRS transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 9, the apparatus includes a receiving module 92 and a processing module 94, and the apparatus may be applied to a terminal, and the apparatus is Be explained.

The receiving module 92 is configured to receive a parameter required by the base station to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal Mask enable control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS; processing module 94. Connect to the receiving module 92, set to generate the uplink DMRS, and send an uplink DMRS according to the foregoing parameter.

In an optional embodiment, the receiving module 92 may receive the parameters required for sending the uplink DMRS configured by the base station by receiving the foregoing parameters sent by the base station by using downlink control signaling and/or high layer signaling. That is, the base station may send the foregoing parameters by using downlink control signaling and/or high-layer signaling. Of course, the transmission manners of the base stations listed herein are only two examples, and other reasonable transmission methods may also be adopted. Moreover, the signaling used when transmitting the above parameters may be determined according to a specific scenario.

In an optional embodiment, when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index is valid (that is, the interleaved frequency division multiple access of the uplink DMRS (Interleaved Frequency Division Multiple) Access, referred to as IFDMA) is enabled; when the number of frequency combs indicates that the message is not configured or the number is configured as 1, it indicates that the frequency comb index is invalid (ie, the IFDMA of the uplink DMRS is not enabled). In an embodiment, the indication message that the time domain repetition coefficient of the uplink DMRS sent by the base station is 2 or 4 or 8 is enabled to determine whether the frequency comb index is valid, where the time domain repetition coefficient indicating the uplink DMRS is When the 2 or 4 or 8 is enabled, the frequency comb index is valid. Otherwise, the frequency comb index is invalid. Alternatively, the indicator message sent by the base station to indicate whether the interleaved frequency division multiple access of the uplink DMRS is enabled may be determined. Whether the frequency comb index is valid, wherein when the interleaving frequency division multiple access indication of the uplink DMRS is enabled, the frequency comb is valid, otherwise, the frequency comb is described. The above three indications are similar. In actual use, only one of the above methods can be used to indicate whether the frequency comb index is valid.

In an optional embodiment, the receiving module 92 may receive the foregoing parameter that is sent by the base station by using downlink control signaling: receiving downlink control signaling sent by the base station, where the downlink control signaling is used to jointly indicate the foregoing The uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS; or the downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. Therefore, in this implementation, the base station can use the downlink control signaling to perform the joint indication of the multiple parameters, thereby avoiding multiple signaling interactions between the base station and the terminal, saving time and resources.

In an optional embodiment, the receiving module 92 may receive the downlink control signaling sent by the base station by: receiving the 3-bit or 4-bit downlink control signaling sent by the base station, where the 3 bit or 4 The bit downlink control signaling is used to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. In this embodiment, when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are indicated by the 4-bit downlink control signaling, the indication manner in the related art may be used for indication.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 3-bit downlink control signaling, the at least one of the following manners can be performed. Instructing: when the frequency comb index of the uplink DMRS includes 0 and 1, one or more of the eight states indicated by the foregoing 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling jointly indicate an uplink DMRS cyclic shift and an uplink DMRS And a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the uplink DMRS includes 0, 1, 2, and 3, the 3-bit downlink control signaling indicates One or more of the eight states jointly indicate the uplink DMRS a frequency comb index of the cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling a frequency comb index indicating an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS, where the frequency comb index of the uplink DMRS is 1; or, in the 8 states indicated by the 3-bit downlink control signaling One or more of the joints indicate an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 2; or the 3-bit downlink control signaling representation One or more of the eight states jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 3.

In an optional embodiment, when the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by the 4-bit downlink control signaling, the at least one of the following manners can be performed. Instructing: when the frequency comb index of the DMRS includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate an uplink DMRS cyclic shift and an uplink DMRS orthogonal mask. And a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0, or one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate an uplink DMRS cyclic shift, The frequency comb index of the uplink DMRS orthogonal mask and the uplink DMRS, wherein the frequency comb index of the uplink DMRS is 1; when the frequency comb index of the DMRS includes 0, 1, 2, and 3, the 4-bit downlink control signaling representation One or more of the 16 states are used to jointly indicate a frequency comb index indicating an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS, where the frequency comb index of the uplink DMRS is 0, or, 4 Bit down One or more of the 16 states indicated by the control signaling are used to jointly indicate a frequency comb index indicating an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, and an uplink DMRS, where the frequency comb index of the uplink DMRS is 1 Or one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where the uplink DMRS The frequency comb index is 2, or one or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS. The frequency comb index of the uplink DMRS is 3. For specific indication methods, refer to Table 1 and Table 2 above.

In an optional embodiment, the receiving module 92 may receive the downlink control signaling sent by the base station by receiving the 3-bit downlink control signaling sent by the base station, where the 3-bit downlink control signaling is used. Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask; or receiving the 4-bit downlink control signaling sent by the base station, where the 4-bit downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift Bit and upstream DMRS orthogonal mask.

In an optional embodiment, when receiving the 3-bit downlink control signaling sent by the base station, at least one of the following is included: when the uplink DMRS orthogonal mask includes [+1, +1, +1, +1] , [+1, -1, +1, -1], [+1, +1, -1, -1], [+1, -1, -1, +1], the above 3-bit downlink control signal Determining one or more of the eight states indicated for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1 And +1], or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS is positive The intersection mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the above 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and An uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or the above 3-bit downlink control One or more of the eight states indicated by the signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, - 1, +1]; when the above DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, - 1,-1], [-1, +1, +1, -1], one or more of the eight states indicated by the above 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift And an uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one of 8 states represented by the above 3-bit downlink control signaling Or a plurality of used for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or the above 3 bits One or more of the eight states indicated by the downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1 , -1, -1], or one or more of the eight states indicated by the above 3-bit downlink control signaling are used to jointly indicate the above uplink DMRS a ring shift and an uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [-1, +1, +1, -1]; when the DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [-1, -1, +1, +1], [+1, -1, -1, +1], One or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1] , +1, +1, +1], or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. The uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the foregoing 3-bit downlink control signaling are used to jointly indicate the foregoing. Uplink DMRS cyclic shift and uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or 8 types of the above 3-bit downlink control signaling One or more of the states are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, -1 , +1]. In this embodiment, when the base station jointly indicates the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask through the 3-bit downlink control signaling, the base station may perform the indication of the uplink DMRS cyclic shift in the manner of the related art.

In an optional embodiment, the receiving module 92 may receive the 4-bit downlink control signaling sent by the base station by using one or more of the 16 states indicated by the 4-bit downlink control signaling. Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (1, 7, 4, 10) or (1, 7, 10, 4); or, the above 4 bits One or more of the 16 states indicated by the downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (5, 11, 8, 2) or (5, 11, 2, 8); or, one or more of the 16 states indicated by the above 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. a code, wherein the uplink DMRS is cyclically shifted to (7, 1, 4, 10) or (7, 1, 10, 4); or one of 16 states represented by the 4-bit downlink control signaling or The plurality is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (11, 5, 2, 8) or (11, 5, 8, 2). In this embodiment, when the base station jointly indicates the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask through the 4-bit downlink control signaling, the base station may perform the indication of the uplink DMRS orthogonal mask by using the method in the related art. It should be noted that the indication manners in the foregoing embodiments are performed in several examples, and other reasonable indication manners may also be used for indication.

In an optional embodiment, the receiving module 92 may receive the foregoing parameter sent by the base station by using the high layer signaling by: receiving, by the base station, a 4-bit orthogonal mask enable control bit sent by the high layer signaling. Wherein, when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, it indicates that the terminal uses the uplink DMRS orthogonal mask. The code is [+1, +1, +1, +1] or [+1, +1]. That is, in the present embodiment, when the 4-bit long orthogonal mask enable control bit is not configured or is not enabled, the DMRS orthogonal mask can be configured as [+1, +1, +1, + 1] or [+1, +1] indicates that the indication mode can be negotiated in advance by the base station and the terminal, or the indication mode is configured for the terminal.

In an optional embodiment, the receiving module 92 may receive the foregoing parameter that is sent by the base station by using the high layer signaling by: receiving the high layer signaling sent by the base station, where the high layer signaling is used to indicate the segment generation DMRS. a sequence indicator identifier; when it is determined that the foregoing high layer RRC signaling indicates that the segment generation DMRS sequence indicator is not configured or is in an invalid state, based on the same used to generate the uplink DMRS on each segment of the scheduled frequency band The parameters of the sequence generate the uplink DMRS sequence; and/or, when it is determined that the RRC signaling indicates that the segment generation DMRS sequence indication identifier is configured or in an active state, based on different segments of the scheduled frequency band The parameter for generating the uplink DMRS sequence generates an uplink DMRS sequence, where the parameter for generating the uplink DMRS sequence includes at least one of the following: a virtual cell identifier ID, a sequence group number, and a base sequence number.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The parameter is configured to be used by the terminal to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal mask enable. Control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS;

S2: Send the configured parameter to the terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter.

Optionally, the storage medium is further arranged to store program code for performing the following steps:

S1. The parameter required to send the uplink DMRS configured by the base station is received, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal mask enable. Control bit, segment generation DMRS sequence indication identifier, number of frequency combs of uplink DMRS;

S2. The uplink DMRS is generated, and the uplink DMRS is sent according to the foregoing parameter.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs the above steps according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

The solution in the embodiment of the present invention can be adapted to the scenario of uplink multi-user MU pairing, especially when there are many uplink users. When the multiplexing capacity of the uplink DMRS is enhanced, the problem of insufficient DMRS multiplexing resources in the uplink multi-user pairing is solved, thereby meeting the requirement of multi-user communication with the network side, and improving the communication access efficiency.

In the various embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

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

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each module may be separately used as one module, or two or more modules may be integrated into one unit; The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a removable storage device, a read only memory, a magnetic disk, or an optical disk, and the like, which can store program codes.

Alternatively, the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a read only memory, a magnetic disk, or an optical disk.

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.

Industrial applicability

As described above, the method and apparatus for transmitting an uplink demodulation reference signal DMRS according to an embodiment of the present invention have the following beneficial effects: solving the problem that the multiplexing function of the uplink DMRS cannot be enhanced in the related art, and achieving the uplink The multiplexing function of DMRS is enhanced to meet the needs of uplink multi-user pairing.

Claims (28)

A method for transmitting an uplink demodulation reference signal DMRS includes: Configuring a parameter required for the terminal to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal mask enable control. Bit, segment generation DMRS sequence indication identifier, number of frequency combs of the uplink DMRS; Sending the configured parameter to the terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter. The method of claim 1, wherein transmitting the configured parameters to the terminal comprises: The configured parameters are sent to the terminal by downlink control signaling and/or higher layer signaling. The method according to claim 1 or 2, wherein when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index indicating the uplink DMRS is valid; when the uplink DMRS is When the number of frequency combs is not configured or the number of frequency combs of the uplink DMRS is configured to 1, the frequency comb index indicating the uplink DMRS is invalid. The method of claim 2, wherein the transmitting the configured parameter to the terminal by using the downlink control signaling comprises: Determining, by the downlink control signaling, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS; or jointly indicating, by using the downlink control signaling, the uplink DMRS a cyclic shift and the uplink DMRS orthogonal mask; Sending the downlink control signaling to the terminal. The method according to claim 4, wherein the frequency comb index indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS jointly by the downlink control signaling includes: The frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by 3-bit or 4-bit downlink control signaling. The method according to claim 5, wherein the frequency comb index indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS jointly by the 3-bit downlink control signaling includes at least one of the following : When the frequency comb index of the DMRS includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. And a frequency comb index of the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink a frequency comb index of the DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 1; When the frequency comb index of the DMRS includes 0, 1, 2, and 3, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS a cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 1; or, in 8 states represented by 3-bit downlink control signaling One or more joints indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 2; or, One or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where The frequency comb index of the uplink DMRS is 3. The method according to claim 5, wherein the frequency comb index indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS is jointly indicated by 4-bit downlink control signaling, including at least one of the following : When the frequency comb index of the uplink DMRS includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, and the uplink DMRS orthogonal a mask and a frequency comb index of the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 0; or one or more of 16 states indicated by 4-bit downlink control signaling jointly indicate the An uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; When the frequency comb index of the DMRS includes 0, 1, 2, and 3, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink a DMRS orthogonal mask and a frequency comb index of the uplink DMRS, wherein a frequency comb index of the uplink DMRS is 0; or one or more of 16 states represented by 4-bit downlink control signaling And indicating a frequency comb index of the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; or, represented by 4-bit downlink control signaling One or more of the 16 states jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 2; or, by one or more of the 16 states indicated by the 4-bit downlink control signaling, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS Where the frequency of the uplink DMRS 3 index. The method according to claim 4, wherein jointly indicating, by the downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask comprises: Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask by using 3-bit downlink control signaling; or The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by 4-bit downlink control signaling. The method according to claim 8, wherein when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by 3-bit downlink control signaling, the method comprises at least one of the following: When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1 And [+1, -1, -1, +1], one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or, by 3 bits One or more of the eight states indicated by the downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, The DMRS orthogonal mask is [+1, -1, -1, +1]; When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1 And [-1, +1, +1, -1], the one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or, by 3 bits One or more of the eight states indicated by the downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, The uplink DMRS orthogonal mask is [-1, +1, +1, -1]; When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [-1, -1, +1, +1 And [+1, -1, -1, +1], one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS An orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or one or more of eight states represented by 3-bit downlink control signaling Jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or, by 3 bits One or more of the eight states indicated by the downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [-1, -1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, The uplink DMRS orthogonal mask is [+1, -1, -1, +1]. The method according to claim 8, wherein when the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are jointly indicated by 4-bit downlink control signaling, the method includes: And indicating, by one or more of the 16 states indicated by the 4-bit downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (1) , 7, 4, 10) or (1, 7, 10, 4); or, Demonstrating the uplink DMRS by one or more of 16 states indicated by 4-bit downlink control signaling a cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS cyclic shift is (5, 11, 8, 2) or (5, 11, 2, 8); or And indicating, by one or more of the 16 states indicated by the 4-bit downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (7) , 1, 4, 10) or (7, 1, 10, 4); or, And indicating, by one or more of the 16 states indicated by the 4-bit downlink control signaling, the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift is (11) , 5, 2, 8) or (11, 5, 8, 2). The method of claim 2, wherein the transmitting the parameter of the configuration to the terminal by using the high layer signaling comprises: Transmitting, by the high layer signaling, a configured 4-bit orthogonal mask enable control bit to the terminal; Wherein, when the 4-bit orthogonal mask enable control bit is not configured or is not enabled, it indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1 , +1] or [+1, +1]. The method of claim 2, wherein the transmitting the parameter of the configuration to the terminal by using the high layer signaling comprises: Transmitting, by the high layer signaling, the configured segment generation DMRS sequence indication identifier to the terminal, where when the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, indicating that the terminal is Generating the uplink DMRS sequence on each segment of the scheduled frequency band based on the same parameter used to generate the uplink DMRS sequence; when the segment generation DMRS sequence indication flag is configured or in an active state, indicating the The terminal generates the uplink DMRS sequence based on different parameters for generating the uplink DMRS sequence on each segment of the scheduled frequency band, where the parameter used to generate the uplink DMRS sequence includes at least one of the following : virtual cell identification ID, sequence group number, base sequence number. A method for transmitting an uplink demodulation reference signal DMRS includes: And receiving, by the base station, a parameter required for sending the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of an uplink DMRS, and an orthogonal mask enable control. Bit, segment generation DMRS sequence indication identifier, number of frequency combs of the uplink DMRS; Generating the uplink DMRS, and sending the uplink DMRS according to the parameter. The method of claim 13, wherein receiving the parameters required by the base station to transmit the uplink DMRS comprises: Receiving, by the base station, the parameter sent by using downlink control signaling and/or high layer signaling. The method according to claim 13 or 14, wherein when the number of frequency combs of the uplink DMRS is configured to be 2 or 4 or 8, the frequency comb index indicating the uplink DMRS is valid; when the uplink DMRS is Frequency comb When the number is not configured or the number of frequency combs of the uplink DMRS is configured to 1, the frequency comb index indicating the uplink DMRS is invalid. The method according to claim 14, wherein the receiving the parameter that the base station sends by using downlink control signaling comprises: Receiving the downlink control signaling sent by the base station; The downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS; or the downlink control signaling is used for joint indication. The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. The method according to claim 16, wherein the receiving the downlink control signaling sent by the base station comprises: Receiving 3-bit or 4-bit downlink control signaling sent by the base station, where the 3-bit or 4-bit downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and Frequency comb index of the uplink DMRS. The method according to claim 17, wherein the 3-bit downlink control signaling is used to jointly indicate that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS include the following At least one: When the frequency comb index of the uplink DMRS includes 0 and 1, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, and the uplink DMRS is positive. And a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the 8 states indicated by the 3-bit downlink control signaling The frequency com-index of the uplink DMRS, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; When the frequency comb index of the uplink DMRS includes 0, 1, 2, and 3, one or more of the eight states indicated by the 3-bit downlink control signaling jointly indicate that the uplink DMRS is cyclically shifted. An uplink DMRS orthogonal mask and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 0; or one of 8 states represented by the 3-bit downlink control signaling or a plurality of joints indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; or the 3-bit downlink One or more of the eight states indicated by the control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the uplink DMRS The frequency comb index is 2; or one or more of the 8 states indicated by the 3-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink Frequency comb index of DMRS, wherein the frequency of the uplink DMRS Comb index 3. The method according to claim 17, wherein the 4-bit downlink control signaling is used to jointly indicate that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS include the following At least one: When the frequency comb index of the DMRS includes 0 and 1, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, and the uplink DMRS orthogonal a frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 0; or one or more of the 16 states indicated by the 4-bit downlink control signaling An uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 1; When the frequency comb index of the DMRS includes 0, 1, 2, and 3, one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, An uplink DMRS orthogonal mask and a frequency comb index of the uplink DMRS, where a frequency comb index of the uplink DMRS is 0; or one or more of 16 states indicated by the 4-bit downlink control signaling And jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency comb index of the uplink DMRS is 1; or the 4-bit downlink control One or more of the 16 states indicated by the signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the frequency comb index of the uplink DMRS, where the frequency of the uplink DMRS The comb index is 2; or one or more of the 16 states indicated by the 4-bit downlink control signaling jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the uplink DMRS Frequency comb index, wherein the frequency of the uplink DMRS 3 index. The method according to claim 16, wherein the receiving the downlink control signaling sent by the base station comprises: Receiving the 3-bit downlink control signaling sent by the base station, where the 3-bit downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask; or And receiving the 4-bit downlink control signaling sent by the base station, where the 4-bit downlink control signaling is used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask. The method according to claim 20, wherein when receiving the 3-bit downlink control signaling sent by the base station, the method comprises at least one of the following: When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1 And [+1, -1, -1, +1], one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the An uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1]; or, in the eight states indicated by the 3-bit downlink control signaling One or more for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1] Or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS The orthogonal mask is [+1, +1, -1, -1]; or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cycle. Shifting and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, -1, +1]; When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [+1, +1, -1, -1 [1, +1, +1, -1], one or more of the eight states indicated by the 3-bit downlink control signaling are used for joint indication The uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or the 3-bit downlink control One or more of the eight states indicated by the signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, -1, +1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal a mask, wherein the uplink DMRS orthogonal mask is [+1, +1, -1, -1], or one or more of the eight states indicated by the 3-bit downlink control signaling For jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [-1, +1, +1, -1]; When the uplink DMRS orthogonal mask includes [+1, +1, +1, +1], [+1, -1, +1, -1], [-1, -1, +1, +1 And [+1, -1, -1, +1], one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the An uplink DMRS orthogonal mask, where the uplink DMRS orthogonal mask is [+1, +1, +1, +1], or in the eight states indicated by the 3-bit downlink control signaling One or more for jointly indicating the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, +1, -1] Or, one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS The orthogonal mask is [-1, -1, +1, +1], or one or more of the eight states indicated by the 3-bit downlink control signaling are used to jointly indicate the uplink DMRS cycle. Shifting and the uplink DMRS orthogonal mask, wherein the uplink DMRS orthogonal mask is [+1, -1, -1, +1]. The method according to claim 20, wherein when receiving the 4-bit downlink control signaling sent by the base station, the method includes: One or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift For (1,7,4,10) or (1,7,10,4); or, One or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift For (5,11,8,2) or (5,11,2,8); or, One or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift For (7,1,4,10) or (7,1,10,4); or, One or more of the 16 states indicated by the 4-bit downlink control signaling are used to jointly indicate the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask, where the uplink DMRS cyclic shift Is (11, 5, 2, 8) or (11, 5, 8, 2). The method according to claim 14, wherein the receiving the parameter that the base station sends by using the high layer signaling comprises: Receiving a 4-bit long orthogonal mask enable control bit sent by the base station through the high layer signaling, wherein when the 4-bit orthogonal mask enable control bit is not configured or not enabled Indicates that the uplink DMRS orthogonal mask used by the terminal is [+1, +1, +1, +1] or [+1, +1]. The method according to claim 14, wherein the receiving the parameter that the base station sends by using the high layer signaling comprises: Receiving the high layer signaling sent by the base station, where the high layer signaling is used to indicate that the segment generates a DMRS sequence indication identifier; When it is determined that the high layer RRC signaling indicates that the segment generation DMRS sequence indication identifier is not configured or is in an invalid state, based on the same parameter used to generate the uplink DMRS sequence on each segment of the scheduled frequency band Generating the uplink DMRS sequence; and/or, When it is determined that the RRC signaling indicates that the segment generation DMRS sequence indication identifier is configured or in an active state, generating a parameter based on different parameters for generating the uplink DMRS sequence on each segment of the scheduled frequency band The uplink DMRS sequence is configured, where the parameter used to generate the uplink DMRS sequence includes at least one of the following: a virtual cell identifier ID, a sequence group number, and a base sequence number. A transmitting device for an uplink demodulation reference signal DMRS, comprising: The configuration module is configured to configure parameters required for the terminal to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal a mask enable control bit, a segment generation DMRS sequence indication identifier, and a number of frequency combs of the uplink DMRS; And a sending module, configured to send the configured parameter to the terminal, where the parameter is used to instruct the terminal to send the uplink DMRS according to the parameter. A transmitting device for an uplink demodulation reference signal DMRS, comprising: The receiving module is configured to receive a parameter required by the base station to send the uplink DMRS, where the parameter includes at least one of the following: an uplink DMRS cyclic shift, an uplink DMRS orthogonal mask, a frequency comb index of the uplink DMRS, and an orthogonal a mask enable control bit, a segment generation DMRS sequence indication identifier, and a number of frequency combs of the uplink DMRS; The processing module is configured to generate the uplink DMRS, and send the uplink DMRS according to the parameter. A storage medium, characterized in that the storage medium comprises a stored program, wherein the program is executed to perform the method of any one of claims 1 to 24. A processor, wherein the processor is operative to execute a program, wherein the program is executed to perform the method of any one of claims 1 to 24.

Images