CN107733613B

CN107733613B - Method and device for sending uplink demodulation reference signal (DMRS)

Info

Publication number: CN107733613B
Application number: CN201610666793.XA
Authority: CN
Inventors: 王瑜新; 鲁照华; 陈艺戬; 吴昊; 李儒岳; 肖华华; 蔡剑兴
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2022-06-21
Anticipated expiration: 2036-08-12
Also published as: CN107733613A

Abstract

The invention provides a method and a device for sending an uplink demodulation reference signal (DMRS), wherein the method comprises the following steps: a terminal receives a time frequency resource or a parameter set which is configured by a network side and is required for transmitting an uplink DMRS, or the time frequency resource or the parameter set which is required for transmitting the uplink DMRS is predefined between the terminal and the network side; and the terminal transmits the uplink DMRS according to the time-frequency resource or the parameter set, wherein the time-frequency resource comprises: time domain position, frequency domain position, the parameter set comprising: the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS sending comb index solve the problem of how to send uplink demodulation reference signals for multi-pair users with unequal bandwidths in the related technology, and improve user experience.

Description

Method and device for sending uplink demodulation reference signal (DMRS)

Technical Field

The invention relates to the field of communication, in particular to a method and a device for sending an uplink demodulation reference signal (DMRS).

Background

A radio frame (radio frame) in a Long Term Evolution (LTE) system includes frame structures of a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode. Fig. 1 is a diagram illustrating a frame structure of an FDD mode according to the related art, and as shown in fig. 1, a 10 millisecond (ms) radio frame is composed of twenty slots (slots) with a length of 0.5ms and numbers of 0 to 19, and slots 2i and 2i +1 are composed of subframes (subframes) i with a length of 1 ms. Fig. 2 is a diagram illustrating a frame structure of a TDD mode according to the related art, and as shown in fig. 2, a 10ms radio frame is composed of two half-frames (half frames) with a length of 5ms, one half-frame includes 5 subframes with a length of 1ms, and a subframe i is defined as 2 slots 2i and 2i +1 with a length of 0.5 ms.

In the two frame structures, for a Normal Cyclic Prefix (Normal CP), a slot includes 7 time domain symbols with a length of 66.7 microseconds (us), where the CP length of the first symbol is 5.21us, and the CP lengths of the remaining 6 time domain symbols are 4.69 us; for an Extended Cyclic Prefix (Extended CP), a slot contains 6 time domain symbols, and the CP length of all symbols is 16.67 us. Time unit T_sIs defined as T _s1/(15000 × 2048) seconds, supported Uplink and Downlink configurations are shown in table 1 below, where for each subframe in a radio frame, "D" denotes a subframe dedicated to Downlink transmission, "U" denotes a subframe dedicated to Uplink transmission, "S" denotes a special subframe for three fields, Downlink Pilot Time Slot (DwPTS for short), Guard Period (GP for short) and Uplink Pilot Time Slot (UpPTS for short), the lengths of DwPTS and UpPTS are shown in table 2, and the total length of DwPTS, GP and UpPTS conforms to 30720 · T-pts _s1 ms. GP was calculated according to the following formula: the number of symbols occupied by GP is equal to the number of OFDM symbols of a subframe, the number of symbols occupied by DwPTS, and the number of symbols occupied by UpPTS, each subframe i is represented by 2 time slots 2i and 2i +1, and each time slot has the length T_slot＝15360·T_s＝0.5ms。

LTE TDD supports uplink and downlink switching periods of 5ms and 10 ms. If the period of the downlink-to-uplink switching point is 5ms, the special subframe exists in two half frames; if the downlink-to-uplink switching point period is 10ms, the special subframe only exists in the first half frame. Subframe 0 and subframe 5 and DwPTS are always used for downlink transmission. The UpPTS and the subframe immediately following the special subframe are dedicated for uplink transmission.

TABLE 1 UL/DL configurations

TABLE 2 Special subframe configuration (DwPTS/GP/UpPTS length)

An Uplink Physical Channel of a Long Term Evolution (LTE) system includes a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel (PUSCH), and a Physical Uplink Control Channel (PUCCH). For Uplink Scheduling Information (USI for short) of the PUSCH, the network side sends the Uplink Scheduling Information (USI for short) to the target UE through a Physical Downlink Control Channel (PDCCH for short). The uplink scheduling information includes: and control information such as resource allocation, modulation and coding scheme, Cyclic Shift (Cyclic Shift) of the DMRS and the like related to the physical uplink shared channel.

In the LTE system, a physical uplink shared channel adopts single antenna port transmission. One system frame (frame) contains 10 subframes (subframes), each containing 2 slots (slots). Fig. 3 is a diagram illustrating a conventional Cyclic Prefix in a slot according to the related art, and as shown in fig. 3, each slot is composed of 6 data symbols and 1 demodulation reference signal for a conventional Cyclic Prefix (Normal CP). Fig. 4 is a diagram illustrating an extended cyclic prefix in one slot according to the related art, and as shown in fig. 4, for the extended cyclic prefix, each slot is composed of 5 data symbols and 1 demodulation reference signal.

The DMRS is composed of a sequence in the frequency domain, which is a cyclic shift of the reference signal sequence. In order to randomize inter-cell interference, a reference signal Sequence of a demodulation reference signal may implement Sequence hopping (Sequence hopping) or Sequence Group hopping (Group hopping) based on a time slot according to a network side configuration, which is also called an sgh (Sequence Group hopping) mode of time slot hopping. That is, according to the network side configuration, the demodulation reference signals of a ue on two slots in a subframe are different, and vary with the slots in a system frame according to a certain hopping pattern.

In time slot n_sIn (1), the cyclic shift amount alpha of the demodulation reference signal_λComprises the following steps: alpha is alpha_λ＝2πn_cs,λAnd/12, wherein,

within a radio frame, n_s＝0,1,...,19；

Is configured by the parameters of the higher layer,

configured by uplink scheduling information, called uplink DMRS cyclic shift. n is_PN(n_s) Generated by a pseudo-random generator, is over a time slot n_sThe variable parameter being expressed in particular

The pseudo-random sequence generator is initialized once in each radio frame under the initial condition that

The initialization value is related to the associated cell ID and is a cell-specific parameter. Wherein,

is cell ID, Δ_ssParameters configured for higher layers.

The uplink scheduling Information is carried in a physical Downlink Control channel (pdcch) and sent from the network side to the target ue in a certain Downlink Control Information format (DCI format). In the LTE system, the formats of downlink control information are divided into the following: DCI format 0, 1A, 1B, 1C, 1D, 2A, 3A, and the like, where DCI format 0 includes uplink scheduling information for indicating scheduling of a physical uplink shared channel PUSCH.

An LTE-Advanced system (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 adopts multi-antenna port transmission, the DMRS of each layer of data is precoded as same as each layer of data. And the demodulation reference signals of different layer data, including the demodulation reference signals of multi-layer data of the same user equipment in a single-user multiple-input multiple-output system (SU-MIMO) and the demodulation reference signals of multi-layer data of a plurality of user equipments in a multi-user multiple-input multiple-output system (MU-MIMO), are orthogonalized by using different demodulation reference signal Cyclic Shifts (CS) and/or Orthogonal masks (OCC) to distinguish different layer data spatially multiplexed by users or different users. Wherein, the orthogonal mask OCC is [ +1, +1] and [ +1, -1], and acts on the demodulation reference signals on two slots (slots) within one Subframe (Subframe). For MU paired users with unequal bandwidths, different users can only be orthogonalized by using the OCC, and therefore the maximum number of supported MU paired users can only be 2.

Currently, in the standard Release established by 3GPP, the LTE standard Release is Release 8 (Release 8) and Release 9 (Release 9), the LTE-a standard Release is Release 10 (Release 10), which is abbreviated as Release-8, Release-9 and Release-10, respectively, and the LTE-a standard may also include subsequent releases, such as Release-11/12/13/14. In the current Rel-10 release, the network side may indicate 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 3.

TABLE 3

Table 3 shows the cyclic shift regions of the uplink-related DCI format

And [ w^(λ)(0) w^(λ)(1)]A mapping table, which is a table of contents,

when orthogonalizing the demodulation reference signals by using an orthogonal mask OCC, a network side needs to perform joint detection on the demodulation reference signals on two time slots in a subframe, so that the demodulation reference signals on two time slots in a subframe need to be the same by one user equipment. In this case, the SGH scheme of slot hopping in the LTE system cannot be used. However, in order to randomize inter-cell interference as much as possible, an SGH scheme for subframe hopping is proposed in the related art. That is, according to the network side configuration, the demodulation reference signals of a ue on two slots in a subframe are the same, the demodulation reference signals on each subframe in a system frame are different, and the demodulation reference signals vary from subframe to subframe in a system frame according to a certain hopping pattern.

A Sounding Reference Signal (SRS) is a Signal used between a terminal device and a base station to measure radio Channel Information (CSI). In a long term evolution system, a UE (user equipment) transmits an uplink SRS (sounding reference signal) on the last data symbol of a transmission subframe at regular time according to parameters such as bandwidth, frequency domain position, sequence cyclic shift, period and subframe offset indicated by an eNB (evolved node B). And the eNB judges the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling, closed-loop power control and the like according to the obtained CSI.

In the same SRS bandwidth, multiple UEs may use different cyclic shifts on the same frequency comb and then transmit SRS through code division multiplexing, or two UEs may transmit SRS through frequency division multiplexing on different frequency combs. For example, in the LTE system, a UE transmitting an SRS within a certain SRS bandwidth (4 RBs) may use 8 cyclic shifts and 2 frequency combs, so that the UE has 16 resources available for transmitting the SRS in total, that is, at most 16 SRS may be transmitted simultaneously within the SRS bandwidth. Since an LTE system does not support uplink Single User Multiple Input Multiple Output (SU-MI MO), a UE can only have one antenna to transmit an SRS at each time, and thus only one UE needs one SRS resource, and therefore, the system can multiplex 16 UEs at most simultaneously within the SRS bandwidth.

In the future LTE-a Release 13(LTE-a Release 13) research, the multiplexing capacity of SRS is further enhanced, and the SRS transmission frequency comb can be extended from 2 to 4, and the number of uplink pilot slots of a special subframe is extended from 1 or 2 to 6 at most, so as to further enhance the multiplexing capacity of SRS in the time domain.

In the future LTE-a Release 14(LTE-a Release 14) research, under the scenario of configuring Full-dimensional MIMO (Full Dimension-MIMO, abbreviated as FD-MIMO) or MIMO with a large number of antennas, the number of users is increasing, and the requirement for uplink MU pairing will further increase, especially for MU paired users with unequal bandwidths, how to send uplink demodulation reference signals needs to be solved urgently. In addition, LTE-a release 14 also studies how to enhance the throughput of uplink transmission, and studies how to transmit uplink data on an uplink pilot timeslot of a TDD special subframe, and at this time, how to send an uplink demodulation reference signal in the special subframe is also an urgent problem to be solved.

Therefore, no solution has been proposed in the related art for the problem of how to transmit the uplink demodulation reference signal by the multi-paired users with unequal bandwidths.

Disclosure of Invention

The embodiment of the invention provides a method and a device for sending an uplink demodulation reference signal (DMRS), which are used for at least solving the problem of how to send the uplink demodulation reference signal for multi-pair users with unequal bandwidths in the related art.

According to an embodiment of the present invention, a method for transmitting an uplink demodulation reference signal DMRS is provided, including:

a terminal receives a time-frequency resource or a parameter set which is configured by a network side and is required for transmitting an uplink DMRS, or the time-frequency resource or the parameter set which is required for transmitting the uplink DMRS is predefined between the terminal and the network side;

the terminal sends the uplink DMRS according to the time-frequency resource or the parameter set, wherein the time-frequency resource comprises: time domain position, frequency domain position, the parameter set includes: the DMRS transmission method comprises uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

Preferably, the time domain position is a time domain position of an uplink pilot time slot in a special subframe of the time division duplex system, and includes:

the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot.

Preferably, the frequency domain locations comprise:

the indexes on the PUSCH bandwidth occupied by the terminal are odd subcarrier positions or even subcarrier positions; or,

the terminal occupies a PUSCH bandwidth with an index of an odd subcarrier position in odd subcarriers, or an index of an even subcarrier position in odd subcarriers, or an index of an odd subcarrier position in even subcarriers, or an index of an even subcarrier position in even subcarriers.

Preferably, the uplink DMRS of the terminal and the measurement reference signal are multiplexed in a frequency division manner, and occupy different transmission combs respectively.

Preferably, the receiving, by the terminal, the time-frequency resource or the parameter set, configured by the network side, required for transmitting the uplink DMRS includes:

and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling.

Preferably, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling, includes:

and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and represented by cyclic shift domains in a 3-bit uplink related DCI format, from the network side.

Preferably, the uplink DMRS cyclic shift values of layer 1 (λ ═ 0) of the different-state joint indication include 0, 2, 3, 4, 6, 8, 9, and 10, or include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and different values are taken for the transmission comb indexes corresponding to the uplink DMRS cyclic shift values of the adjacent layer 1; or,

for the uplink DMRS cyclic shift values of the adjacent layer 1, when the orthogonal mask values of the layer 1 corresponding to the cyclic shift values are the same, the sending comb indexes corresponding to the cyclic shift values take different values; or,

for the uplink DMRS cyclic shift values of the adjacent layer 1, when the difference value of the two cyclic shift values is less than or equal to 1, the sending comb indexes corresponding to the cyclic shift values take different values; or,

three parameters are indicated for any two different states: the method comprises the steps of layer 1 uplink DMRS cyclic shift, layer 1 orthogonal mask and transmission comb index, wherein the three parameters indicated by the state A and the three parameters indicated by the state B have at least 2 different values, and any two different states comprise the state A and the state B.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift field in a 3-bit uplink-related DCI format by the network side, includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 011 or 100 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 001 or 011 or 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

Preferably, when the values of the transmission comb indexes of the DMRS include 0, 1, 2, and 3, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indexes of the uplink DMRS, which are jointly indicated by the network side through different states represented by a cyclic shift field in a 3-bit uplink related DCI format, and include at least one of the following:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 001, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 010 or 011, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 100 or 101, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 110 or 111, wherein the value of the transmission comb index of the uplink DMRS is 3;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 001 or 010, wherein the value of the transmission comb index of the uplink DMRS is 3.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift field in a 4-bit uplink-related DCI format by the network side, includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000 or 0001 or 0010 or 0011 or 0100 or 0101 or 0110 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000 or 0001 or 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the states 0010, 0111, 1000, 1001, 1010 and 1011, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000 or 0001 or 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0010, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110 and 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1100 or 1101 on the network side, wherein the value of the transmission comb index of the uplink DMRS is 0, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1100 are respectively 0, 6, 3 and 9, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1100 are respectively [ 1-1 ], [ 11 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1101 are respectively 2, 8, 1101 5 and 11, and the first layer of the uplink DMRS orthogonal mask jointly indicated by the state 1101 is respectively 2, 8, 1101 and 11, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS transmission comb index jointly indicated by the state 0010 or 0111 or 1000 or 1001 or 1010 or 1011 or 1110 or 1111 at the network side, wherein the value of the uplink DMRS transmission comb index is 1, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1110 are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1110 are [ 11 ], [ 1-1 ] and [ 1-1 ] respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, and the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ];

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1110 or 1111 by the network side, wherein the value of the transmission comb index of the uplink DMRS is 0, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the state 1110, are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the state 1110, are [ 11 ], [ 1-1 ] and [ 1-1 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the state 1111, are 9, 3, 0 and 6 respectively, and the values of the first layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the state 1111, are 9, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS transmission comb index jointly indicated by the network side through states 0010, 0111, 1001, 1010, 1011, 1100, and 1101, where values of the uplink DMRS transmission comb index are 1, values of first, second, third, and fourth layers of the uplink DMRS cyclic shift jointly indicated by the state 1100 are 0, 6, 3, and 9, values of the first, second, third, and fourth layers of the uplink DMRS orthogonal mask jointly indicated by the state 1100 are [ 1-1 ], [ 11, and [ 11 ], values of the first, second, third, and fourth layers of the uplink DMRS cyclic shift jointly indicated by the state 1101 are 2, 8, 5, and 11, values of the first, second, third, and fourth layers of the uplink DMRS orthogonal mask jointly indicated by the state 1101 are 2, 8, 5, and 11, and values of the first, second, third, and fourth layers of the uplink DMRS orthogonal mask jointly indicated by the state 1101 are 2, 8, and 11, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ].

Preferably, when the values of the transmission comb indexes of the DMRSs include 0, 1, 2, and 3, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indexes of the uplink DMRSs, which are jointly indicated by different states and are represented by cyclic shift fields in a 4-bit uplink-related DCI format by the network side, includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 0000 or 0001 or 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1000, 1001, 1010 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1011 or 1100 or 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 0000 or 0010 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 0001 or 0011 or 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1001 or 1011 or 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

According to another aspect of the embodiments of the present invention, a method for transmitting an uplink demodulation reference signal DMRS is provided, including:

a network side configures time frequency resources or parameter sets required by sending uplink DMRS for a terminal, and notifies the configured time frequency resources or parameter sets to the terminal; or, predefining, between the network side and the terminal, a time-frequency resource or a parameter set required by the terminal to transmit the uplink DMRS, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

and the network side receives the uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set.

the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd, 4 th or 5 th uplink pilot time slot.

Preferably, the frequency domain locations comprise:

all subcarrier positions on the PUSCH or SRS bandwidth occupied by the terminal have odd-numbered subcarrier positions or even-numbered subcarrier positions; or,

the terminal occupies the odd subcarrier position in the odd subcarrier, the odd subcarrier position in the even subcarrier, or the even subcarrier position in the even subcarrier.

Preferably, the uplink DMRS of the terminal and the measurement reference signal are multiplexed in a frequency division manner, and occupy different sending combs respectively.

Preferably, the notifying, by the network side through downlink control signaling, the configured parameter set to the terminal includes:

and the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a 3-bit or 4-bit downlink control signaling.

Preferably, the jointly indicating, by the network side through a 3-bit or 4-bit downlink control signaling, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS by the network side include:

and the network side jointly indicates the cyclic shift of the uplink DMRS, the orthogonal mask of the uplink DMRS and the transmission comb index of the uplink DMRS through different states represented by cyclic shift domains in a 3-bit or 4-bit uplink related DCI format in downlink control signaling.

Preferably, the uplink DMRS cyclic shift values of the layer 1 in the different state joint indications include 0, 2, 3, 4, 6, 8, 9, and 10, or include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and different values are taken for the transmission comb index corresponding to the uplink DMRS cyclic shift value of the adjacent layer 1; or,

three parameters indicated for any two different states: the method comprises the steps of layer 1 uplink DMRS cyclic shift, layer 1 orthogonal mask and transmission comb index, wherein the three parameters indicated by the state A and the three parameters indicated by the state B have at least 2 different values, and any two different states comprise the state A and the state B.

Preferably, when the transmission comb index value of the DMRS includes 0 and 1, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 3-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the state 011 or 100 or 101 or 110 jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS by using a state 001, 011, 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

Preferably, when the values of the transmission comb indexes of the DMRSs include 0, 1, 2, and 3, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indexes of the uplink DMRSs through different states represented by cyclic shift fields in a 3-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 000 or 001, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 010 or 011, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 100 or 101, wherein the value of the transmission comb index of the uplink DMRS is 2; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 110 or 111, wherein the value of the transmission comb index of the uplink DMRS is 3;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the state 001 or 010 jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 3.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 4-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0001 or 0010 or 0011 or 0100 or 0101 or 0110 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and a transmission comb index of the uplink DMRS through a state 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0001 or 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0010 or 0111 or 1000 or 1001 or 1010 or 1011, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0001 or 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0010 or 0111 or 1000 or 1001 or 1010 or 1011 or 1100 or 1101 or 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by states 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1100 or 1101, wherein the value of the transmission comb index of the uplink DMRS is 0, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1100 are respectively 0, 6, 3 and 9, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1100 are respectively [ 1-1 ], [ 11 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1101 are respectively 2, 8, 5 and 11, and the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1101 are respectively 2, 8, 5 and 11, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS transmission comb index jointly indicated by the state 0010 or 0111 or 1000 or 1001 or 1010 or 1011 or 1110 or 1111 at the network side, wherein the value of the uplink DMRS transmission comb index is 1, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1110 are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1110 are [ 11 ], [ 1-1 ] and [ 1-1 ] respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, and the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ];

the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by states 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 0, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the states 1110 are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the states 1110 are [ 11 ], [ 1-1 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the states 1111 are 9, 3, 0 and 6 respectively, and the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the states 1111 are 9, 3, 0 and 6 respectively, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0010, 0111, 1000, 1001, 1010, 1011, 1100 and 1101, wherein the value of the transmission comb index of the uplink DMRS is 1, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the states 1100, are respectively 0, 6, 3 and 9, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the states 1100, are respectively [ 1-1 ], [ 11 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the states 1101, are respectively 2, 8, 5 and 11, and the values of the first layer, the uplink DMRS orthogonal mask, which are jointly indicated by the states 1101, are respectively 2, 8, 5 and 11, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ].

Preferably, when the values of the transmission comb indexes of the DMRSs include 0, 1, 2, and 3, the different states indicated by the cyclic shift field in the 4-bit uplink-related DCI format jointly indicate that the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indexes of the uplink DMRSs include at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0001 or 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1000, 1001, 1010' or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1011 or 1100 or 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0010 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0001 or 0011 or 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1001, 1011, 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

According to another aspect of the embodiments of the present invention, there is also provided a transmitting apparatus for an uplink demodulation reference signal DMRS, which is applied to a terminal, and includes:

the terminal comprises a first receiving module and a second receiving module, wherein the first receiving module is used for receiving time-frequency resources or parameter sets which are configured by a network side and are required for transmitting the uplink DMRS, or the time-frequency resources or the parameter sets which are required for transmitting the uplink DMRS are predefined between the terminal and the network side;

a sending module, configured to send the uplink DMRS according to the time-frequency resource or the parameter set, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

According to another aspect of the embodiments of the present invention, there is also provided a transmitting apparatus for an uplink demodulation reference signal DMRS, which is applied to a network side, and includes:

the terminal comprises a configuration module and a processing module, wherein the configuration module is used for configuring a time frequency resource or a parameter set required by sending an uplink DMRS for the terminal and informing the terminal of the configured time frequency resource or the configured parameter set; or predefining time-frequency resources or parameter sets required by the terminal for transmitting the uplink DMRS between the terminal and the terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

and the second receiving module is used for receiving the uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set.

According to the invention, the terminal receives the time frequency resource or parameter set which is configured by the network side and is required for transmitting the uplink DMRS, or the time frequency resource or parameter set which is required for transmitting the uplink DMRS is predefined between the terminal and the network side; and the terminal transmits the uplink DMRS according to the time-frequency resource or the parameter set, wherein the time-frequency resource comprises: time domain position, frequency domain position, the parameter set comprising: the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS sending comb index solve the problem of how to send uplink demodulation reference signals for multi-pair users with unequal bandwidths in the related technology, and improve user experience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a diagram illustrating a frame structure of an FDD mode according to the related art;

fig. 2 is a diagram illustrating a frame structure of a TDD mode according to the related art;

fig. 3 is a diagram illustrating a conventional cyclic prefix in one slot according to the related art;

fig. 4 is a diagram illustrating an extended cyclic prefix in one slot according to the related art;

fig. 5 is a first flowchart of a method for transmitting an uplink demodulation reference signal DMRS according to an embodiment of the present invention;

fig. 6 is a flowchart ii of a method for transmitting an uplink demodulation reference signal DMRS according to an embodiment of the present invention;

fig. 7 is a first block diagram of a transmitting apparatus for an uplink demodulation reference signal DMRS according to an embodiment of the present invention;

fig. 8 is a block diagram ii of a device for transmitting an uplink demodulation reference signal DMRS according to an embodiment of the present invention.

Detailed Description

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

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

If an Interleaved Frequency Division Multiple Access (IFDMA) is used to enhance the uplink DMRS, that is, the Frequency domain of the uplink DMRS adopts a comb structure, and the number of transmission combs (transmission combs) may be 2 or 4. When the number of the sending combs is 2, the indexes of the sending combs can be 0 and 1, namely transmission comb 0 and transmission comb 1; when the number of the transmission combs is 4, the indexes of the transmission combs can be 0, 1, 2 and 3, namely transmission comb 0, transmission comb 1, transmission comb 2 and transmission comb 3; . In order to flexibly configure the transmission comb index of the uplink DMRS, it is necessary to dynamically indicate the transmission comb index of the DMRS by using a downlink control signaling.

Example 1

In this embodiment, a method for sending an uplink demodulation reference signal DMRS is provided, and fig. 5 is a first flowchart of the method for sending an uplink demodulation reference signal DMRS according to the embodiment of the present invention, where as shown in fig. 5, the flowchart includes the following steps:

step S502, a terminal receives time frequency resources or parameter sets which are configured by a network side and are required for transmitting uplink DMRS, or the time frequency resources or the parameter sets which are required for transmitting the uplink DMRS are predefined between the terminal and the network side;

step S504, the terminal sends the uplink DMRS according to the time-frequency resource or the parameter set, wherein the time-frequency resource comprises: time domain position, frequency domain position, the parameter set comprising: the DMRS transmission method comprises uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

Preferably, the time domain position is a time domain position of an uplink pilot time slot in a special subframe of the time division duplex system, and includes: the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot.

Preferably, the frequency domain locations include: the index of the PUSCH bandwidth occupied by the terminal is the odd number of subcarrier positions or the even number of subcarrier positions; or,

the terminal occupies an odd subcarrier position in odd subcarriers, or an even subcarrier position in odd subcarriers, or an odd subcarrier position in even subcarriers, or an even subcarrier position in even subcarriers.

Preferably, the uplink DMRS of the terminal and the sounding reference signal are multiplexed in a frequency division manner, and occupy different sending combs respectively.

Preferably, the receiving, by the terminal, the time-frequency resource or the parameter set required for transmitting the uplink DMRS, configured by the network side includes: and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling.

Preferably, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS jointly indicated by the network side through the 3-bit or 4-bit downlink control signaling include: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by cyclic shift domains in a 3-bit uplink related DCI format, from the network side.

Preferably, the uplink DMRS cyclic shift values of layer 1 of the different-state joint indication include 0, 2, 3, 4, 6, 8, 9, and 10, or include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and different values are taken for the transmission comb index corresponding to the uplink DMRS cyclic shift value of the adjacent layer 1; or,

for the uplink DMRS cyclic shift values of the adjacent layer 1, when the difference value of the two cyclic shift values is less than or equal to 1, the sending comb index corresponding to the cyclic shift value takes different values; or,

three parameters indicated for any two different states: the method comprises the steps of layer 1 uplink DMRS cyclic shift, layer 1 orthogonal mask and transmission comb index, wherein three parameters indicated by a state A and three parameters indicated by a state B have at least 2 different values, and any two different states comprise the state A and the state B.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift domain in a 3-bit uplink related DCI format, where the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS include at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the states 000, 001, 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 011, 100, 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the states 000, 010, 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 001, 011, 100 or 111 on the network side, wherein the value of the transmission comb index of the uplink DMRS is 1.

Preferably, when the value of the transmission comb index of the DMRS includes 0, 1, 2, and 3, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift field in a 3-bit uplink-related DCI format by the network side, includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 000 or 001, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 010 or 011, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 100 or 101, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 110 or 111, wherein the value of the transmission comb index of the uplink DMRS is 3;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 001 or 010, wherein the value of the transmission comb index of the uplink DMRS is 3.

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000, 0001, 0010, 0011, 0100, 0101, 0110 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through states 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000, 0001, 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0010, 0111, 1000, 1001, 1010 or 1011, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000, 0001, 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0010, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the state 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1110 or 1111 by the network side, wherein the value of the transmission comb index of the uplink DMRS is 0, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the state 1110, are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the state 1110, are [ 11 ], [ 1-1 ] and [ 1-1 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the state 1111, are 9, 3, 0 and 6 respectively, and the values of the first layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the state 1111, are 9, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0010, 0111, 1000, 1001, 1010, 1011, 1100 and 1101, wherein the value of the transmission comb index of the uplink DMRS is 1, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the states 1100, are respectively 0, 6, 3 and 9, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask, which are jointly indicated by the states 1100, are respectively [ 1-1 ], [ 11 ], the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift, which are jointly indicated by the states 1101, are respectively 2, 8, 5 and 11, and the values of the first layer, the uplink DMRS orthogonal mask, which are jointly indicated by the states 1101, are respectively 2, 8, 5 and 11, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ].

Preferably, when the value of the transmission comb index of the DMRS includes 0, 1, 2, and 3, the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift field in a 4-bit uplink-related DCI format by the network side, includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0000, 0001, 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 1000, 1001, 1010 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 1011, 1100, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the state 0000, 0010, 0101 or 0110 by the network side, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 0001, 0011, 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through states 1001, 1011, 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

An embodiment of the present invention further provides a method for transmitting an uplink demodulation reference signal DMRS, where fig. 6 is a second flowchart of the method for transmitting an uplink demodulation reference signal DMRS according to the embodiment of the present invention, and as shown in fig. 6, the flowchart includes the following steps:

step S602, a network side configures a time frequency resource or a parameter set required by sending an uplink DMRS for a terminal, and notifies the configured time frequency resource or the configured parameter set to the terminal; or predefining time-frequency resources or parameter sets required by the terminal for transmitting the uplink DMRS between the network side and the terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position, the parameter set comprising: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

step S604, the network side receives the uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set.

Preferably, the frequency domain locations include:

the terminal occupies the odd subcarrier position in the odd subcarrier, the even subcarrier position in the odd subcarrier, the odd subcarrier position in the even subcarrier, or the even subcarrier position in the even subcarrier.

Preferably, the notifying, by the network side through the downlink control signaling, the configured parameter set to the terminal includes:

and the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through 3-bit or 4-bit downlink control signaling.

Preferably, the jointly indicating, by the network side through 3-bit or 4-bit downlink control signaling, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS include:

the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift domain in a 3-bit or 4-bit uplink related DCI format in a downlink control signaling.

for the uplink DMRS cyclic shift value of the adjacent layer 1, when the orthogonal mask values of the layer 1 corresponding to the cyclic shift value are the same, the sending comb index corresponding to the cyclic shift value takes different values; or,

three parameters are indicated for any two different states: the method comprises the steps of layer 1 uplink DMRS cyclic shift, layer 1 orthogonal mask and transmission comb index, wherein three parameters indicated by a state A and three parameters indicated by a state B have at least 2 different values, and any two different states comprise the state A and the state B.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, jointly indicating the cyclic shift of the uplink DMRS, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 3-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000, 001, 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 011, 100, 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000, 010, 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 001, 011, 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

Preferably, when the value of the transmission comb index of the DMRS includes 0, 1, 2, and 3, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 3-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through the state 000 or 001, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 010 or 011, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 100 or 101, wherein the value of the transmission comb index of the uplink DMRS is 2; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 110 or 111, wherein the value of the transmission comb index of the uplink DMRS is 3;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 001 or 010, wherein the value of the transmission comb index of the uplink DMRS is 3.

Preferably, when the value of the transmission comb index of the DMRS includes 0 and 1, jointly indicating the cyclic shift of the uplink DMRS, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 4-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000, 0001, 0010, 0011, 0100, 0101, 0110 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the cyclic shift of the uplink DMRS, the orthogonal mask of the uplink DMRS and the transmission comb index of the uplink DMRS through states 0000, 0001, 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0010, 0111, 1000, 1001, 1010 or 1011, wherein the value of the transmission comb index of the uplink DMRS is 1;

jointly indicating the cyclic shift of the uplink DMRS, the orthogonal mask of the uplink DMRS and the transmission comb index of the uplink DMRS through states 0000, 0001, 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0010, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by states 0000 or 0001 or 0011 or 0100 or 0101 or 0110 or 1100 or 1101, where values of the transmission comb index of the uplink DMRS are 0, values of the first, second, third and fourth layers of the uplink DMRS cyclic shift jointly indicated by the state 1100 are 0, 6, 3 and 9, respectively, values of the first, second, third and fourth layers of the uplink DMRS orthogonal mask jointly indicated by the state 1100 are [ 1-1 ], [ 11 ], values of the first, second, third and fourth layers of the uplink DMRS cyclic shift jointly indicated by the state 1101 are 2, 8, 5 and 11, respectively, and the first, second, third and fourth layers of the uplink DMRS orthogonal mask jointly indicated by the state 1101, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 1-1 ] and [ 1-1 ]; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS transmission comb index jointly indicated by the state 0010 or 0111 or 1000 or 1001 or 1010 or 1011 or 1110 or 1111 at the network side, wherein the value of the uplink DMRS transmission comb index is 1, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1110 are 7, 1, 10 and 4 respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1110 are [ 11 ], [ 1-1 ] and [ 1-1 ] respectively, the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS cyclic shift jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, and the values of the first layer, the second layer, the third layer and the fourth layer of the uplink DMRS orthogonal mask jointly indicated by the state 1111 are 9, 3, 0 and 6 respectively, The values of the second layer, the third layer and the fourth layer are respectively [ 1-1 ], [ 11 ] and [ 11 ];

Preferably, when the values of the transmission comb index of the DMRS include 0, 1, 2, and 3, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift field in a 4-bit uplink-related DCI format includes at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000, 0001, 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0011, 0100, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1000, 1001, 1010 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1011, 1100, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000, 0010, 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0001, 0011, 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1001, 1011, 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

Example 2

An embodiment of the present invention provides a device for transmitting an uplink demodulation reference signal DMRS, which is applied to a terminal, and fig. 7 is a block diagram of the device for transmitting an uplink demodulation reference signal DMRS according to the embodiment of the present invention, where, as shown in fig. 7, the device includes:

a first receiving module 72, configured to receive a time-frequency resource or a parameter set, configured by a network side, required for transmitting an uplink DMRS, or predefine the time-frequency resource or the parameter set, required for transmitting the uplink DMRS, between the terminal and the network side;

a sending module 74, configured to send the uplink DMRS according to the time-frequency resource or the parameter set, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set comprising: the DMRS transmission method comprises uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

An embodiment of the present invention further provides a device for transmitting an uplink demodulation reference signal DMRS, which is applied to a network side, and fig. 8 is a block diagram ii of the device for transmitting an uplink demodulation reference signal DMRS according to the embodiment of the present invention, and as shown in fig. 8, the device includes:

a configuration module 82, configured to configure a time-frequency resource or a parameter set required for transmitting an uplink DMRS for a terminal, and notify the terminal of the configured time-frequency resource or the configured parameter set; or predefining time-frequency resources or parameter sets required by the terminal for sending the uplink DMRS with the terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position, the parameter set comprising: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

and a second receiving module 84, configured to receive the uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set.

Example 3

The embodiment of the invention also provides a storage medium. Alternatively, in this embodiment, the storage medium may be configured to store program codes for performing the following steps:

step S1, the terminal receives the time frequency resource or parameter set which is configured by the network side and is needed for sending the uplink DMRS, or the time frequency resource or parameter set which is needed for sending the uplink DMRS is predefined between the terminal and the network side;

step S2, sending the uplink DMRS according to the time-frequency resource or the parameter set, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set includes: the DMRS transmission method comprises uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and various media capable of storing program codes.

If an Interleaved Frequency Division Multiple Access (IFDMA) is used to enhance the uplink DMRS, that is, the Frequency domain of the uplink DMRS adopts a comb structure, and the number of transmission combs (transmission combs) may be 2 or 4. When the number of the sending combs is 2, the indexes of the sending combs can be 0 and 1, namely transmission comb 0 and transmission comb 1; when the number of the transmission combs is 4, the indexes of the transmission combs can be 0, 1, 2, and 3, that is, transmission comb 0, transmission comb 1, transmission comb 2, and transmission comb 3; . In order to flexibly configure the transmission comb index of the uplink DMRS, it is necessary to dynamically indicate the transmission comb index of the DMRS by using a downlink control signaling.

Example 4

A network side (namely a base station) configures time-frequency resources required by sending an uplink demodulation reference signal (DMRS) for a user terminal and informs the user terminal of the configured time-frequency resources; or, predefining time-frequency resources required by the user terminal for transmitting the uplink DMRS between a network side and the user terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position. In the prior art, the uplink DMRS cannot be transmitted in the uplink pilot time slot of the special subframe, and the uplink data is transmitted in the time domain position and the frequency domain position to increase the throughput of uplink transmission, so that the uplink DMRS needs to be transmitted in a matching manner to perform uplink channel estimation and demodulation on the uplink data.

Further, the time domain position is a time domain position of an uplink pilot time slot in a special subframe of the time division duplex system, and the time domain position includes: the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the user terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot solve the problem of how to transmit the DMRS in the uplink pilot time slot of the special subframe.

Further, the frequency domain locations include: all subcarrier positions on a PUSCH or SRS bandwidth occupied by the user terminal are either the subcarrier positions with odd indexes or the subcarrier positions with even indexes; if the frequency domain of the uplink DMRS adopts a comb structure, the number of transmission combs (transmission combs) is 2, and a RePetition Factor value (RPF) corresponding to a time domain is 2, the sub-carrier position with an even index corresponds to comb 0, and the sub-carrier position with an odd index corresponds to comb 1; or, if the uplink DMRS is configured to have an RPF of 4, one of comb 0, comb 1, comb 2, and comb 3 may be selected to transmit the uplink DMRS, where the user terminal occupies a PUSCH bandwidth with an odd subcarrier position (i.e., comb 3) in odd subcarriers, an even subcarrier position (i.e., comb 1) in odd subcarriers, an odd subcarrier position (i.e., comb 2) in even subcarriers, or an even subcarrier position (i.e., comb 0) in even subcarriers.

After the time-frequency position of the uplink DMRS is determined by the method, the UE can map the uplink DMRS sequence to the determined time-frequency position so as to transmit the uplink DMRS sequence to the base station, and the problem of how to transmit the DMRS in the uplink pilot frequency time slot of the special subframe is solved.

Example 5

A network side (namely a base station) configures time-frequency resources required by sending an uplink demodulation reference signal (DMRS) for a user terminal and informs the user terminal of the configured time-frequency resources; or, predefining time-frequency resources required by the user terminal for transmitting the uplink DMRS between a network side and the user terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position;

further, the time domain position is a time domain position of an uplink pilot time slot in a special subframe of the time division duplex system, and includes: the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the user terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot.

Further, the frequency domain locations include: if the time domain position where the uplink DMRS is transmitted is also configured with SRS transmission, the frequency domain position of the uplink DMRS and the frequency domain position of the SRS can be multiplexed in a frequency division manner. For example, if the RPFs of the uplink DMRS and the SRS are both 2, the uplink DMRS may occupy the frequency domain position of comb 0, and the SRS may occupy the frequency domain position of comb 1.

After the time-frequency position of the uplink DMRS is determined by the method, the UE can map the uplink DMRS sequence to the determined time-frequency position so as to send the uplink DMRS sequence to the base station.

Example 6

A network side (namely a base station) configures a parameter set required by sending an uplink demodulation reference signal (DMRS) for a user terminal, and notifies the configured parameter set to the user terminal; the parameter set includes:

the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the uplink DMRS transmitting comb index characterize the DMRS resources through the cyclic shift and the orthogonal mask in the prior art, increase the dimension of the transmitting comb, further enhance the orthogonal multiplexing capacity of the DMRS, and solve the problem that the prior art can not support a plurality of users to perform unequal bandwidth pairing.

It should be noted that, in order to make backward compatibility with the UE of the old version, the values of the uplink DMRS cyclic shift and the uplink DMRS orthogonal mask are the same as those in the prior art, and after the transmission comb function of the uplink DMRS is turned off, the UE before the LTE R13 version may also use the table of the joint indication.

Further, a network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a 3-bit downlink control signaling;

further, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS by different states represented by cyclic shift fields in a 3-bit uplink-related DCI format includes at least one of:

when the values of the transmission comb indexes of the DMRSs include 0 and 1, that is, when the RPF is configured to be 2, as shown in table 4, states "000", "001", "010", and "111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; the states of "011", "100", "101" and "110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 1;

or, as shown in table 5, states "000", "010", "101", and "110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; states "001", "011", "100" and "111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1.

TABLE 4

TABLE 5

Example 7

the DMRS transmission method comprises uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS transmission comb indexes.

when the values of the transmission comb indexes of the DMRSs include 0, 1, 2, and 3, that is, when the RPF is configured to be 4, as shown in table 6, states "000" and "001" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where the value of the transmission comb index of the uplink DMRS is 0; states of '010' and '011' jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 1; states of 100 and 101 jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 2; states '110' and '111' jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 3;

or, as shown in table 7, states "000" and "111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; the states of "011" and "100" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 1; states of '101' and '110' jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 2; states '001' and '010' jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, wherein the value of the transmission comb index of the uplink DMRS is 3.

TABLE 6

TABLE 7

Example 8

Further, a network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through 4-bit downlink control signaling;

further, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS are jointly indicated by different states represented by cyclic shift domains in a 4-bit uplink related DCI format, where the different states include at least one of:

as shown in table 8, when values of transmission comb indices of the DMRS include 0 and 1, that is, when an RPF is configured as 2, states "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; states "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1;

alternatively, as shown in table 9, states "0000", "0001", "0011", "0100", "0101", "0110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; states "0010", "0111", "1000", "1001", "1010", "1011" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 1;

alternatively, as shown in table 10, states "0000", "0001", "0011", "0100", "0101", "0110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; states "0010", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1.

Alternatively, as shown in table 11, states "0000", "0001", "0011", "0100", "0101", "0110", "1100", and "1101" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 0; states "0010", "0111", "1000", "1001", "1010", "1011", "1110", "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1.

Alternatively, as shown in table 12, states "0000", "0001", "0011", "0100", "0101", "0110", "1110", and "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 0; states "0010", "0111", "1000", "1001", "1010", "1011", "1100", "1101" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1.

TABLE 8

TABLE 9

Watch 10

TABLE 11

TABLE 12

Example 9

A network side (namely a base station) configures a parameter set required for sending an uplink demodulation reference signal (DMRS) for a user terminal, and informs the user terminal of the configured parameter set; the parameter set includes:

Further, the increase from the existing 3 bits to 4 bits is to obtain more DMRS orthogonal resources, but increases signaling overhead of 1 bit, and the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through 4-bit downlink control signaling;

further, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS by different states represented by cyclic shift fields in a 4-bit uplink-related DCI format includes at least one of:

when the values of the transmission comb indexes of the DMRSs include 0, 1, 2, and 3, that is, when the RPF is configured to be 4, jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indexes of the uplink DMRSs according to states "0000", "0001", "0010", and "0111" shown in table 13, where the value of the transmission comb index of the uplink DMRS is 0; states "0011", "0100", "0101", "0110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 1; states "1000", "1001", "1010", "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 2; states "1011", "1100", "1101", "1110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 3;

alternatively, as shown in table 14, states "0000", "0010", "0101", "0110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, where a value of the transmission comb index of the uplink DMRS is 0; states "0001", "0011", "0100", "0111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 1; states "1000", "1010", "1101", "1110" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and a transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 2; states "1001", "1011", "1100", "1111" jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, wherein a value of the transmission comb index of the uplink DMRS is 3.

Watch 13

TABLE 14

Example 10

Further, the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through 3-bit or 4-bit downlink control signaling;

further, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS by different states represented by cyclic shift fields in a 3-bit or 4-bit uplink-related DCI format includes at least one of:

the values of uplink DMRSs cyclic shifts in layer 1 (that is, λ ═ 0 in the corresponding table) of the different-state joint indications include 0, 2, 3, 4, 6, 8, 9, and 10, or include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and for the values of uplink DMRSs cyclic shifts in adjacent layer 1, the corresponding transmission comb indexes take different values;

or, for the cyclic shift values of the uplink DMRSs of the adjacent layer 1, when the values of the orthogonal masks of the layer 1 corresponding to the cyclic shift values are the same, the corresponding transmission comb indexes take different values;

or, for the uplink DMRS cyclic shift values of the adjacent layer 1, when a difference between the two cyclic shift values is less than or equal to 1, the corresponding transmission comb indexes take different values;

alternatively, for any three parameters indicated by two different states (denoted as state a and state B): the method comprises the steps of uplink DMRS cyclic shift of a layer 1, orthogonal mask of the layer 1 and sending comb index, wherein the values of at least 2 parameters of three parameters indicated by a state A and three parameters indicated by a state B are different.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for transmitting an uplink demodulation reference signal (DMRS), the method comprising:

a terminal receives a time frequency resource or a parameter set which is configured by a network side and is required for transmitting an uplink DMRS, or the time frequency resource required for transmitting the uplink DMRS is predefined between the terminal and the network side;

the terminal sends the uplink DMRS according to the time-frequency resource or the parameter set, wherein the time-frequency resource comprises: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

wherein, the time domain position is the time domain position of the uplink pilot frequency time slot in the special subframe of the time division duplex system, and the method comprises the following steps: the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot;

the receiving, by the terminal, the time-frequency resource or the parameter set, configured by the network side, required for transmitting the uplink DMRS includes: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling;

the receiving, by the terminal, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling, includes: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and represented by cyclic shift domains in a 3-bit uplink related DCI format, from the network side;

the uplink DMRS cyclic shift values of the layer 1 in the different state joint indication include 0, 2, 3, 4, 6, 8, 9, and 10, or include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and different values are taken for the transmission comb indexes corresponding to the uplink DMRS cyclic shift values of the adjacent layer 1; or, for the uplink DMRS cyclic shift values of the adjacent layer 1, when the orthogonal mask values of the layer 1 corresponding to the cyclic shift values are the same, the transmission comb index corresponding to the cyclic shift value takes different values; or, for the uplink DMRS cyclic shift value of the adjacent layer 1, when a difference between the two cyclic shift values is less than or equal to 1, the transmission comb index corresponding to the cyclic shift value takes different values; alternatively, for any two different states three parameters are indicated: the method comprises the steps of 1 layer uplink DMRS cyclic shift, 1 layer orthogonal mask and sending comb index, wherein the three parameters indicated by a state A and the three parameters indicated by a state B have at least 2 different values, and any two different states comprise the state A and the state B;

when the sending comb index value of the DMRS comprises 0 and 1, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the sending comb index of the uplink DMRS, which are jointly indicated by different states and represented by a cyclic shift domain in a 3-bit uplink related DCI format, of the network side, wherein the sending comb index of the uplink DMRS comprises at least one of the following: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 011 or 100 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 001 or 011 or 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

2. The method of claim 1, wherein the frequency domain locations comprise:

the index of the PUSCH bandwidth occupied by the terminal is the odd number of subcarrier positions or the even number of subcarrier positions; or,

3. The method of claim 1, wherein the uplink DMRS of the terminal is multiplexed with a sounding reference signal in a frequency division manner, and each of the DMRS and the sounding reference signal occupies a different transmission comb.

4. The method of claim 1, wherein when values of the transmission comb indices of the DMRS include 0, 1, 2, and 3, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS, which are jointly indicated by different statuses represented by cyclic shift fields in a 3-bit uplink-related DCI format by the network side, and includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 001 or 010, wherein the value of the transmission comb index of the uplink DMRS is 3.

5. The method of claim 1, wherein when values of the transmission comb indices of the DMRS include 0 and 1, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS, which are jointly indicated by different states represented by cyclic shift fields in a 4-bit uplink-related DCI format by the network side, and includes at least one of:

6. The method of claim 1, wherein when values of the transmission comb indices of the DMRS include 0, 1, 2, and 3, the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS, which are jointly indicated by different statuses represented by cyclic shift fields in a 4-bit uplink-related DCI format by the network side, and includes at least one of:

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 0000 or 0001 or 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state of 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1000, 1001, 1010 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 1011 or 1100 or 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through the state 0000 or 0010 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS jointly indicated by the network side through a state 0001 or 0011 or 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; and the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 1001 or 1011 or 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

7. A method for transmitting an uplink demodulation reference signal (DMRS), the method comprising:

a network side configures time frequency resources or parameter sets required by sending uplink DMRS for a terminal, and notifies the configured time frequency resources or parameter sets to the terminal; or, predefining, between the network side and the terminal, a time-frequency resource required by the terminal to transmit the uplink DMRS, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

the network side receives the uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set;

wherein, the time domain position is the time domain position of the uplink pilot frequency time slot in the special subframe of the time division duplex system, and the time domain position comprises: the time domain position of the uplink pilot frequency time slot adjacent to the guard interval, the time domain position of the uplink pilot frequency time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd, 4 th or 5 th uplink pilot frequency time slot;

the network side notifying the configured parameter set to the terminal through a downlink control signaling includes: the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a 3-bit or 4-bit downlink control signaling;

wherein, the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS through a 3-bit or 4-bit downlink control signaling, and includes: the network side jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift domain in a 3-bit or 4-bit uplink related DCI format in downlink control signaling;

when the transmission comb index value of the DMRS comprises 0 and 1, jointly indicating the cyclic shift of the uplink DMRS, the orthogonal mask of the uplink DMRS and the transmission comb index of the uplink DMRS through different states represented by a cyclic shift domain in a 3-bit uplink related DCI format, wherein the different states comprise at least one of the following: jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 011 or 100 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 001, 011, 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

8. The method of claim 7, wherein the frequency domain locations comprise:

all subcarrier positions on a PUSCH or SRS bandwidth occupied by the terminal have odd-numbered subcarrier positions or even-numbered subcarrier positions as indexes; or,

the index of the PUSCH bandwidth occupied by the terminal is the odd subcarrier position in the odd subcarriers, the index is the even subcarrier position in the odd subcarriers, the index is the odd subcarrier position in the even subcarriers, or the index is the even subcarrier position in the even subcarriers.

9. The method of claim 7, wherein the uplink DMRS of the terminal is multiplexed with a sounding reference signal in a frequency division manner, and each of the DMRS and the sounding reference signal occupies a different transmission comb.

10. The method of claim 7, wherein when values of the transmission comb indices of the DMRS comprise 0, 1, 2, and 3, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS via different states represented by cyclic shift fields in a 3-bit uplink-related DCI format comprises at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 000 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 011 or 100, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 2; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 001 or 010, wherein the value of the transmission comb index of the uplink DMRS is 3.

11. The method of claim 7, wherein when values of transmission comb indices of the DMRS comprise 0 and 1, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS by different states represented by cyclic shift fields in a 4-bit uplink-related DCI format comprises at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS by states 0000 or 0001 or 0010 or 0011 or 0100 or 0101 or 0110 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1000, 1001, 1010, 1011, 1100, 1101, 1110 and 1111, wherein the value of the transmission comb index of the uplink DMRS is 1;

12. The method of claim 7, wherein when values of the transmission comb indices of the DMRS comprise 0, 1, 2, and 3, jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb indices of the uplink DMRS via different states indicated by cyclic shift fields in a 4-bit uplink-related DCI format comprises at least one of:

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0001 or 0010 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0011 or 0100 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1000, 1001, 1010 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 2; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1011 or 1100 or 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 3;

jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 0000 or 0010 or 0101 or 0110, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 0001 or 0011 or 0100 or 0111, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 1000, 1010, 1101 or 1110, wherein the value of the transmission comb index of the uplink DMRS is 2; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 1001, 1011, 1100 or 1111, wherein the value of the transmission comb index of the uplink DMRS is 3.

13. A device for transmitting an uplink demodulation reference signal (DMRS) is applied to a terminal, and is characterized by comprising:

the terminal comprises a first receiving module and a second receiving module, wherein the first receiving module is used for receiving time-frequency resources or parameter sets which are configured by a network side and are required for transmitting the uplink DMRS, or the time-frequency resources which are required for transmitting the uplink DMRS are predefined between the terminal and the network side;

a sending module, configured to send the uplink DMRS according to the time-frequency resource or the parameter set, where the time-frequency resource includes: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

wherein, the time domain position is the time domain position of the uplink pilot frequency time slot in the special subframe of the time division duplex system, and the time domain position comprises: the time domain position of the uplink pilot time slot adjacent to the guard interval, the time domain position of the uplink pilot time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd or 4 th or 5 th uplink pilot time slot;

the first receiving module receives the time-frequency resource or the parameter set, configured by the network side, required for transmitting the uplink DMRS, in the following manner: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling;

the receiving, by the first receiving module, the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a 3-bit or 4-bit downlink control signaling, includes: the terminal receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and represented by cyclic shift domains in a 3-bit uplink related DCI format, from the network side;

the uplink DMRS cyclic shift values of the layer 1 of the different state joint indication comprise 0, 2, 3, 4, 6, 8, 9 and 10, or comprise 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11, and different values are taken for the sending comb indexes corresponding to the uplink DMRS cyclic shift values of the adjacent layer 1; or, for the uplink DMRS cyclic shift values of the adjacent layer 1, when the orthogonal mask values of the layer 1 corresponding to the cyclic shift values are the same, the transmission comb index corresponding to the cyclic shift value takes different values; or, for the uplink DMRS cyclic shift values of the adjacent layer 1, when the difference value of the two cyclic shift values is less than or equal to 1, the sending comb indexes corresponding to the cyclic shift values take different values; alternatively, for any two different states three parameters are indicated: the method comprises the steps of 1 layer uplink DMRS cyclic shift, 1 layer orthogonal mask and sending comb index, wherein the three parameters indicated by a state A and the three parameters indicated by a state B have at least 2 different values, and any two different states comprise the state A and the state B;

when the value of the transmission comb index of the DMRS includes 0 and 1, the first receiving module receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS, which are jointly indicated by different states and are represented by a cyclic shift field in a 3-bit uplink-related DCI format, through at least one of: the first receiving module receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through the state 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; the first receiving module receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 011 or 100 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1; the first receiving module receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; the first receiving module receives the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS, which are jointly indicated by the network side through a state 001 or 011 or 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.

14. A transmitting device of an uplink demodulation reference signal (DMRS) is applied to a network side, and is characterized by comprising the following components:

the terminal comprises a configuration module and a processing module, wherein the configuration module is used for configuring a time frequency resource or a parameter set required by sending an uplink DMRS for the terminal and informing the terminal of the configured time frequency resource or the configured parameter set; or predefining time-frequency resources required by the terminal for transmitting the uplink DMRS between the terminal and the terminal, wherein the time-frequency resources comprise: time domain position, frequency domain position, the parameter set includes: the method comprises the steps of uplink DMRS cyclic shift, uplink DMRS orthogonal masks and uplink DMRS sending comb indexes;

a second receiving module, configured to receive an uplink DMRS sent by the terminal according to the time-frequency resource or the parameter set;

wherein, the time domain position is the time domain position of the uplink pilot frequency time slot in the special subframe of the time division duplex system, and the method comprises the following steps: the time domain position of the uplink pilot frequency time slot adjacent to the guard interval, the time domain position of the uplink pilot frequency time slot adjacent to the next uplink subframe, the time domain position of the measurement reference signal configured by the terminal, and the time domain position of the 3 rd, 4 th or 5 th uplink pilot frequency time slot;

the configuration module notifies the configured parameter set to the terminal through a downlink control signaling in the following way: the configuration module jointly indicates the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a 3-bit or 4-bit downlink control signaling;

wherein the step of jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS by the configuration module through a 3-bit or 4-bit downlink control signaling includes: the configuration module jointly indicates the cyclic shift of the uplink DMRS, the orthogonal mask of the uplink DMRS and the transmission comb index of the uplink DMRS through different states indicated by a cyclic shift domain in a 3-bit or 4-bit uplink related DCI format in downlink control signaling;

the uplink DMRS cyclic shift values of the layer 1 of the different state joint indication comprise 0, 2, 3, 4, 6, 8, 9 and 10, or comprise 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11, and different values are taken for the sending comb indexes corresponding to the uplink DMRS cyclic shift values of the adjacent layer 1; or, for the uplink DMRS cyclic shift values of the adjacent layer 1, when the orthogonal mask values of the layer 1 corresponding to the cyclic shift values are the same, the transmission comb index corresponding to the cyclic shift value takes different values; or, for the uplink DMRS cyclic shift value of the adjacent layer 1, when a difference between the two cyclic shift values is less than or equal to 1, the transmission comb index corresponding to the cyclic shift value takes different values; alternatively, for any two different states three parameters are indicated: the method comprises the steps of 1 layer uplink DMRS cyclic shift, 1 layer orthogonal mask and sending comb index, wherein the three parameters indicated by a state A and the three parameters indicated by a state B have at least 2 different values, and any two different states comprise the state A and the state B;

when the transmission comb index value of the DMRS includes 0 and 1, the configuration module may jointly indicate the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask, and the transmission comb index of the uplink DMRS in different states represented by a cyclic shift field in a 3-bit uplink-related DCI format by at least one of: jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 001 or 010 or 111, wherein the value of the transmission comb index of the uplink DMRS is 0; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through a state 011 or 100 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 1; jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 000 or 010 or 101 or 110, wherein the value of the transmission comb index of the uplink DMRS is 0; and jointly indicating the uplink DMRS cyclic shift, the uplink DMRS orthogonal mask and the transmission comb index of the uplink DMRS through states 001, 011, 100 or 111, wherein the value of the transmission comb index of the uplink DMRS is 1.