CN103220791A - Signaling resource allocation method for uplink demodulation reference signals and base station - Google Patents

Abstract

The invention provides a signaling resource allocation method for uplink demodulation reference signals. The signaling resource allocation method for the uplink demodulation reference signals comprises the steps that a network side indicates subcarrier position information and / or basic sequence allocation information of the uplink demodulation reference signals of the network side to a terminal through uplink control signaling and / or radio resource control signaling of a physical downlink control channel. The invention further provides a base station which comprises a signaling resource allocation module. The base station is used for indicating the subcarrier position information and / or basic sequence allocation information of the uplink demodulation reference signals of the base station to the terminal through uplink control signaling and / or radio resource control signaling of the physical downlink control channel.

Description

Signaling resource allocation method and base station for uplink demodulation reference signal

Technical Field

The invention belongs to the technical field of wireless communication, and relates to a signaling resource allocation method, in particular to a signaling resource allocation method and a base station of an uplink demodulation reference signal in a Long Term Evolution-Advanced (LTE-A) system.

Background

The Uplink demodulation Reference Signal (DMRS) is used to demodulate data in a Physical Uplink Shared Channel (PUSCH) of a user. Demodulation reference signal of PUSCH

(. cndot.) is defined as:

$r_{\mathrm{PUSCH}}^{\left(\mathrm{\λ}\right)}(m\·M_{\mathrm{sc}}^{\mathrm{RS}}+n)=w^{\left(\mathrm{\λ}\right)}\left(m\right)r_{u,v}^{\left({\mathrm{\α}}_{\mathrm{\λ}}\right)}\left(n\right)$

wherein:

m＝0，1

$n=0,...,M_{\mathrm{sc}}^{\mathrm{RS}}-1$

representing the total number of sub-carriers occupied by user data

v denotes the number of layers to transmit data, λ ∈ {0, 1

(n) by aligning a base sequence

(n) performing a cyclic phase shift α_λThis is specifically shown below:

$r_{u,v}^{\left({\mathrm{\α}}_{\mathrm{\λ}}\right)}\left(n\right)=e^{j{\mathrm{\α}}_{\mathrm{\λ}}n}{\stackrel{\‾}{r}}_{u,v}\left(n\right)$

cyclic phase shift of alpha_λ＝2πn_cs，λThe/12 is obtained, wherein the cyclic shift value used by the demodulation reference signal of the user lambda-th layer data is represented, and the cyclic shift value is composed of the following three parts:

$n_{\mathrm{cs},\mathrm{\λ}}=(n_{\mathrm{DMRS}}^{\left(1\right)}+n_{\mathrm{DMRS},\mathrm{\λ}}^{\left(2\right)}+n_{\mathrm{PN}}\left(n_s\right))\mathrm{mod}12$

wherein:

n_PN(n_s) Represents a cyclic shift hopping pattern;

also called first cyclic shift, is notified by 3-bit cyclic shift signaling in radio resource control signaling, as shown in table 1 specifically;

also called as the second cyclic shift, and is notified through a 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the downlink control channel, as shown in table 2.

TABLE 1 first Cyclic Shift indication

TABLE 2 second Cyclic Shift/Quadrature mask Joint indication

When mapping physical resources, an uplink demodulation reference signal (DMRS) is mapped to all consecutive subcarriers on a demodulation reference symbol of a physical resource block where a PUSCH is located, as shown in fig. 1.

LTE-a is an evolution of LTE technology, and is oriented to higher data transmission rates and spectrum utilization efficiency. To further improve cell edge user rates and overall system performance, Coordinated Multiple Point Transmission/Reception (CoMP) is planned by 3 rd generation partnership project (3GPP )^rdGeneration partnerhip Pro ect) was incorporated into the technical framework of LTE-Advanced. CoMP is mainly aimed at cell edge users, and refers to cooperation of multiple transmission points separated in a local location to one or more over-the-counter services.

The CoMP architecture differs from the existing network architecture of R8/9/10 in that for CoMP architecture, there are multiple geographically separated transmission points serving edge users, whereas the conventional network architecture of LTE R8/9/10, whether it is a central user or an edge user, only serves its cell. Therefore, in the uplink, only the base station serving the user receives the uplink data of the user and then performs demodulation check processing to forward the uplink data to an upper layer; in the CoMP scheme, during uplink transmission, a plurality of transmission points receive uplink data from the user. The 3GPP proposes a plurality of CoMP scenarios for CoMP, including four scenarios, wherescenario 1 andscenario 2 are homogeneous network scenarios, andscenario 3 andscenario 4 are heterogeneous network scenarios.Scenario 1 is cooperation in intra-eNodeB,scenario 2 is cooperation under inter-eNodeB,scenario 3 is that a macrocell and a microcell use different Cell IDs, andscenario 4 is that the macrocell and all microcells under its coverage use the same Cell ID. Although CoMP improves the performance of cell edge users, on the other hand, one edge user occupies multiple resources of the system (not only the resources of the serving cell, but also the resources of other cooperating cells), which results in a decrease in the utilization rate of system resources. In order to improve the performance of cell edge users and ensure the resource utilization rate of the system, a CoMP scenario needs to support user pairing between different cells. However, the current DMRS mechanism cannot support inter-cell user configuration well, and particularly, the interference problem is serious when users with unequal bandwidths are paired. In addition, inCoMP scenario 4, the same Cell ID is used by the macro Cell and all the micro cells under the coverage of the macro Cell, and the existence of the micro cells can effectively improve the hot spot coverage and blind spot coverage capability of the macro Cell, so that more users can be supported to communicate simultaneously under the same Cell ID, and further requirements are provided for the capacity of the uplink DMRS. For this reason, many companies tend to support introduction of an Interleaved Frequency Division Multiplexing (IFDM) and a user-specific base sequence configuration technology for DMRS in the LTE-A R11 phase to solve the above issues of paired user interference and capacity of DMRS.

Disclosure of Invention

The invention aims to provide a signaling resource allocation method and a base station for an uplink demodulation reference signal.

In order to solve the above problem, the present invention provides a method for allocating signaling resources of an uplink demodulation reference signal, including:

the network side indicates the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the wireless resource control signaling of the physical downlink control channel.

Further, the method may further have a feature that the network side indicates the subcarrier position information and/or the base sequence configuration information by using an original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding manner.

Further, the method may further have a feature that the network side indicates the subcarrier position information and/or the base sequence configuration information by using an original 3-bit cyclic shift signaling of the radio resource control signaling through a joint coding manner.

Further, the method may further have the following characteristic that, when the subcarrier position information includes two levels of subcarrier position information, the network side indicates the subcarrier position information of the uplink demodulation reference signal to the terminal through an uplink control signaling and/or a radio resource control signaling of a physical downlink control channel, including:

and the network side indicates the position information of the first subcarrier by using the original 3-bit cyclic shift signaling in the wireless resource control signaling in a joint coding mode, and indicates the position information of the second subcarrier by using the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling in the joint coding mode.

Further, the method may further have the following characteristic that the indicating the subcarrier position information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding mode includes:

indicating a subcarrier location information using a portion of an index of the cyclic shift/orthogonal mask signaling; a portion of the index indicates another subcarrier location information; the remaining index indicates third subcarrier location information.

Further, the method may further have the following feature that an index 000, 011, 101 in the cyclic shift/orthogonal mask signaling is used to indicate a subcarrier position information;

indicating another subcarrier location information using indices 001, 100, 110 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indexes in the cyclic shift/orthogonal mask signaling;

or,

indicating a subcarrier position information using indexes 000, 010, 101 in the cyclic shift/orthogonal mask signaling;

indicating another subcarrier location information using indices 001, 100, 111 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indices in the cyclic shift/orthogonal mask signaling.

Further, the method may further have the following characteristic that the indicating the base sequence configuration information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding mode includes:

a part of the indexes of the cyclic shift/orthogonal mask signaling is used for indicating one kind of base sequence configuration information, and the rest indexes are used for indicating another kind of base sequence configuration information.

Further, the method may further have the following feature that one base sequence configuration information is indicated by using indexes 000, 001, 010, and 111 in the cyclic shift/orthogonal mask signaling;

another base sequence configuration information is indicated using the indices 011, 100, 101, 110 in the cyclic shift/orthogonal mask signaling.

Further, the method may further include the following step of indicating the subcarrier position information by joint coding using the original 3-bit cyclic shift signaling of the rrc signaling, where the step of indicating the subcarrier position information by joint coding includes:

and using a part of indexes in the cyclic shift signaling to indicate one piece of subcarrier position information, a part of indexes to indicate another piece of subcarrier position information, and the rest indexes to indicate a third piece of subcarrier position information.

Further, the method may further have a feature that indexes 0, 3, and 5 in the cyclic shift signaling are used to indicate a piece of subcarrier location information; indicating another subcarrier locationinformation using indices 1, 4, 7 in the cyclic shift signaling; and indicating the position information of the third subcarrier by usingindexes 2 and 6 in the cyclic shift signaling.

Further, the method may further include the following feature, wherein the indicating the base sequence configuration information by jointly coding using the original 3-bit cyclic shift signaling of the radio resource control signaling includes:

and using a part of indexes in the cyclic shift signaling to indicate one type of base sequence configuration information, and using the rest of indexes to indicate another type of base sequence configuration information.

Further, the method may further have a feature that indexes 0, 2, 4, and 6 in the cyclic shift signaling are used to indicate a base sequence configuration information; and indicating another base sequence configuration information by usingindexes 1, 3, 5 and 7 in the cyclic shift signaling.

Further, the method may further have the following characteristic that the three pieces of subcarrier position information are respectively one of the following:

instructing the terminal to send the uplink demodulation reference signal at the even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block,

instructing the terminal to send an uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource;

and instructing the terminal to send the uplink demodulation reference signal at all subcarrier index positions on the uplink demodulation reference symbol of the allocated physical resource.

Further, the method may further have the following characteristic that the two base sequence configuration information are respectively one of the following:

instructing the terminal to send an uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to thebase sequence 1;

instructing the terminal to send an uplink demodulation reference symbol on the uplink demodulation reference symbol of the allocated physical resource block according to thebase sequence 2;

thebase sequence 1 is generated by a physical cell identifier of a cell in which a terminal is located; thebase sequence 2 is generated by a virtual cell identifier of a cell in which the terminal is located.

Further, the method may further include the following step of indicating the first subcarrier position information by joint coding using original 3-bit cyclic shift signaling in the radio resource control signaling, wherein the indicating step includes:

and using a part of indexes of the cyclic shift signaling to indicate one piece of subcarrier position information, and using the rest indexes to indicate the other piece of subcarrier position information.

Further, the method may further include indicating one subcarrier location information by usingindexes 0, 3, 4, and 5 in the cyclic shift signaling, and indicating another subcarrier location information by using remaining indexes in the cyclic shift signaling.

Further, the method may further have the following feature that the position information of the one subcarrier and the position information of the other subcarrier are respectively one of the following:

instructing the terminal to send uplink demodulation reference signals on all subcarriers on the uplink demodulation reference symbols of the allocated physical resource blocks;

and instructing the terminal to send the uplink demodulation reference signal at the even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.

Further, the method may further have the following characteristic that the indicating the second subcarrier position information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding mode includes:

a portion of the indices using the cyclic shift/orthogonal mask signaling indicate one subcarrier location information and the remaining indices indicate another subcarrier location information.

Furthermore, the method may further have the following characteristics that indexes 000, 001, 010, and 111 in the cyclic shift/orthogonal mask signaling are used to indicate subcarrier position information; indicating another subcarrier location information using remaining indices in the cyclic shift/orthogonal mask signaling.

Further, the method may further have the following feature that the position information of the one subcarrier and the position information of the other subcarrier are respectively one of the following:

instructing a terminal to send an uplink demodulation reference signal at an even subcarrier index position on an uplink demodulation reference symbol of an allocated physical resource block;

and instructing the terminal to send the uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource.

Further, the method may further include the step of, after receiving the uplink control signaling and/or the radio resource control signaling, the terminal transmitting a corresponding uplink demodulation reference signal using a corresponding base sequence at a corresponding subcarrier position on the uplink demodulation reference symbol of the allocated physical resource block.

The present invention also provides a base station, comprising: a signaling resource allocation module configured to: and indicating the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the radio resource control signaling of the physical downlink control channel.

Further, the base station may further have a feature that the signaling resource allocation module indicates the subcarrier position information and/or the base sequence configuration information by using an original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding manner.

Further, the base station may further have a feature that the signaling resource allocation module indicates the subcarrier position information and/or the base sequence configuration information by using an original 3-bit cyclic shift signaling of the radio resource control signaling through a joint coding method.

Further, the base station may further have the following feature that the signaling resource allocation module indicates the subcarrier position information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the radio resource control signaling of the physical downlink control channel, and the indicating includes:

and indicating the position information of a first subcarrier by using the original 3-bit cyclic shift signaling in the radio resource control signaling in a joint coding mode, and indicating the position information of a second subcarrier by using the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling in the joint coding mode.

Further, the base station may further have the following feature that the signaling resource allocation module indicates the subcarrier position information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding method, where the method includes:

indicating a subcarrier location information using a portion of an index of the cyclic shift/orthogonal mask signaling; a portion of the index indicates another subcarrier location information; the remaining index indicates third subcarrier location information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to:

indicating a subcarrier position information using indexes 000, 011, 101 in the cyclic shift/orthogonal mask signaling; indicating another subcarrier location information using indices 001, 100, 110 in the cyclic shift/orthogonal mask signaling; indicating third subcarrier position information using remaining indexes in the cyclic shift/orthogonal mask signaling;

or,

indicating a subcarrier position information using indexes 000, 010, 101 in the cyclic shift/orthogonal mask signaling;

indicating another subcarrier location information using indices 001, 100, 111 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indices in the cyclic shift/orthogonal mask signaling.

Further, the above base station may further have the following feature that the signaling resource allocation module indicates the base sequence configuration information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding method, where the method includes:

a part of the indexes of the cyclic shift/orthogonal mask signaling is used for indicating one kind of base sequence configuration information, and the rest indexes are used for indicating another kind of base sequence configuration information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to:

indicating a base sequence configuration information using indexes 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling;

another base sequence configuration information is indicated using the indices 011, 100, 101, 110 in the cyclic shift/orthogonal mask signaling.

Further, the above base station may further have the following feature that the signaling resource allocation module indicates the subcarrier position information by using an original 3-bit cyclic shift signaling of the radio resource control signaling through a joint coding method, where the signaling resource allocation module includes:

and using a part of indexes in the cyclic shift signaling to indicate one piece of subcarrier position information, a part of indexes to indicate another piece of subcarrier position information, and the rest indexes to indicate a third piece of subcarrier position information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to: usingindexes 0, 3 and 5 in the cyclic shift signaling to indicate subcarrier position information; indicating another subcarrier locationinformation using indices 1, 4, 7 in the cyclic shift signaling; and indicating the position information of the third subcarrier by usingindexes 2 and 6 in the cyclic shift signaling.

Further, the above base station may further have the following feature that the signaling resource allocation module indicates the base sequence configuration information by using the original 3-bit cyclic shift signaling of the uplink control signaling in a joint coding manner, where the indication includes:

and using a part of indexes in the cyclic shift signaling to indicate one type of base sequence configuration information, and using the rest of indexes to indicate another type of base sequence configuration information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to: usingindexes 0, 2, 4 and 6 in the cyclic shift signaling to indicate base sequence configuration information;indexes 1, 3, 5, 7 in the cyclic shift signaling indicate another base sequence configuration information.

Further, the base station may further have the following characteristics that the three pieces of subcarrier position information are respectively one of the following:

instructing the terminal to send the uplink demodulation reference signal at the even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block,

instructing the terminal to send an uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource;

and instructing the terminal to send the uplink demodulation reference signal at all subcarrier index positions on the uplink demodulation reference symbol of the allocated physical resource.

Further, the base station may further have the following feature that the two base sequence configuration information are respectively one of the following:

instructing the terminal to send an uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to thebase sequence 1;

instructing the terminal to send an uplink demodulation reference symbol on the uplink demodulation reference symbol of the allocated physical resource block according to thebase sequence 2;

thebase sequence 1 is generated by a physical cell identifier of a cell in which a terminal is located; thebase sequence 2 is generated by a virtual cell identifier of a cell in which the terminal is located.

Further, the base station may further have the following feature that the indicating, by the signaling resource allocation module, the first subcarrier position information by using the original 3-bit cyclic shift signaling in the radio resource control signaling through the joint coding mode includes:

and using a part of indexes of the cyclic shift signaling to indicate one piece of subcarrier position information, and using the rest indexes to indicate the other piece of subcarrier position information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to:indexes 0, 3, 4 and 5 in the cyclic shift signaling are used for indicating one piece of subcarrier position information, and the rest indexes in the cyclic shift signaling are used for indicating another piece of subcarrier position information.

Further, the base station may further have the following feature that the one piece of subcarrier location information and the another piece of subcarrier location information are respectively one of the following:

instructing the terminal to send uplink demodulation reference signals on all subcarriers on the uplink demodulation reference symbols of the allocated physical resource blocks;

and instructing the terminal to send the uplink demodulation reference signal at the even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.

Further, the base station may further have the following feature that the signaling resource allocation module indicates the second subcarrier location information by using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling through a joint coding method, where the method includes:

a portion of the indices using the cyclic shift/orthogonal mask signaling indicate one subcarrier location information and the remaining indices indicate another subcarrier location information.

Further, the base station may further have the following feature, and the signaling resource allocation module is configured to: indicating a subcarrier location information using indices 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling; indicating another subcarrier location information using remaining indices in the cyclic shift/orthogonal mask signaling.

Further, the base station may further have the following feature that the one piece of subcarrier location information and the another piece of subcarrier location information are respectively one of the following:

instructing a terminal to send an uplink demodulation reference signal at an even subcarrier index position on an uplink demodulation reference symbol of an allocated physical resource block;

and instructing the terminal to send the uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource.

The invention provides a dynamic/semi-static signaling implicit allocation method aiming at an uplink demodulation reference signal, which can inform a terminal of IFDM and base sequence configuration resources on the premise of not increasing extra signaling bit overhead, can allocate reference signal signaling resources of each uplink user sufficiently and flexibly and improve the system performance.

Drawings

Fig. 1 is a mapping pattern of an existing DMRS signal on an allocated physical resource block.

Fig. 2 is a mapping pattern 1 (mapping to even subcarrier index positions) of DMRS signals on allocated physical resource blocks after introduction of IFDM;

fig. 3 is a mapping pattern 2 (mapping to odd subcarrier index positions) of a DMRS signal after introducing IFDM on an allocated physical resource block;

fig. 4 is a mapping pattern 3 (mapping to all subcarrier index positions) of a DMRS signal after introducing IFDM on an allocated physical resource block;

fig. 5 is a block diagram of a base station according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The invention provides a method for allocating resources to signaling of an uplink demodulation reference signal, which comprises the following steps:

the network side indicates the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the wireless resource control signaling of the physical downlink control channel.

Wherein the method further comprises: and after receiving the uplink control signaling and/or the wireless resource control signaling, the terminal sends corresponding uplink demodulation reference signals at corresponding subcarrier positions on the uplink demodulation reference symbols of the allocated physical resource blocks by using corresponding base sequences.

The network side includes a base station.

The network side uses the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel to indicate the subcarrier position information or the base sequence configuration information of the uplink demodulation reference signal to the terminal in a joint coding mode.

The network side uses the original 3-bit cyclic shift signaling in the radio resource control signaling to indicate the subcarrier position information or the base sequence configuration information of the uplink demodulation reference signal to the terminal in a joint coding mode.

The network side indicates the two-stage subcarrier position information of the uplink demodulation reference signal to the terminal, wherein the first subcarrier position information indicates the mode of joint coding through the original 3-bit cyclic shift signaling in the wireless resource control signaling, and the second subcarrier position information indicates the mode of joint coding through the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel.

Wherein the subcarrier position information includes the following three types:

index positions of even subcarriers on the uplink demodulation reference symbols of the allocated physical resource blocks;

odd subcarrier index positions on the uplink demodulation reference symbols of the allocated physical resource blocks;

and all subcarrier index positions on the uplink demodulation reference symbols of the allocated physical resource block.

Reference may be made to fig. 2, 3, 4, respectively.

Wherein the base sequence configuration information includes the following two types:

abase sequence 1 generated by a physical cell identifier of a cell in which a terminal is located;

abase sequence 2 generated by a virtual cell identifier of a cell in which the terminal is located;

the virtual cell identifier is configured to the terminal in advance by the network side.

The method includes the steps of dividing and indicating different subcarrier position information or base sequence configuration information according to cyclic shift values in cyclic shift/orthogonal mask signaling, preferably, allocating the same subcarrier position information or base sequence configuration information to a cyclic shift/orthogonal mask index with a larger cyclic shift value distance, and allocating different subcarrier position information or base sequence configuration information to a cyclic shift/orthogonal mask index corresponding to a cyclic shift value with a smaller distance.

Wherein a part of indexes of the cyclic shift/orthogonal mask signaling is used for indicating a piece of subcarrier position information; a portion of the index indicates another subcarrier location information; the remaining index indicates third subcarrier location information.

Wherein, preferably, indexes 000, 011, 101 in the cyclic shift/orthogonal mask signaling indicate that indexes 001, 100, 110 in one subcarrier position information ring shift/orthogonal mask signaling indicate another subcarrier position information; the remaining indices in the cyclic shift/orthogonal mask signaling indicate the third type of subcarrier location information.

Wherein, the position information of the three sub-carriers is one of the following (no sequence relation):

instructing a terminal to send an uplink demodulation reference signal at an even subcarrier index position on an uplink demodulation reference symbol of an allocated physical resource block;

instructing the terminal to send the uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block,

and instructing the terminal to send the uplink demodulation reference signal at all the subcarrier positions on the uplink demodulation reference symbol of the allocated physical resource block.

Wherein, a part of indexes using the cyclic shift/orthogonal mask signaling indicate one kind of base sequence configuration information, and the rest indexes indicate another kind of base sequence configuration information. Preferably, the indexes 000, 001, 010, and 111 in the cyclic shift/orthogonal mask signaling indicate one base sequence configuration information, and the indexes 011, 100, 101, and 110 in the cyclic shift/orthogonal mask signaling indicate another base sequence configuration information. This is merely an example, and other division methods may be used as needed.

Wherein, one base sequence configuration information instructs the terminal to send the uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 1 (base sequence 2), and the other base sequence configuration information instructs the terminal to send the uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 2 (base sequence 1).

The method includes the steps of dividing and indicating different subcarrier position information or base sequence configuration information according to cyclic shift and orthogonal mask values in cyclic shift/orthogonal mask signaling, preferably, allocating the same subcarrier position information to a cyclic shift/orthogonal mask index with a larger cyclic shift value distance and a larger orthogonal mask value distance, and allocating different subcarrier position information to a cyclic shift/orthogonal mask index with a smaller cyclic shift value distance and a smaller orthogonal mask value distance. Namely, the distance between the cyclic shift values and the distance between the orthogonal mask values are considered together, and the division is carried out according to the weighted distance sum of the cyclic shift values and the orthogonal mask values. The distance between the orthogonal mask values may be a rotation distance. Specifically, the weighted distance refers to a weighted sum of a distance between cyclic shift values indicated by the cyclic shift/orthogonal mask index and a distance between orthogonal mask values.

One of the dividing modes is as follows: indexes 000, 010 and 101 in the cyclic shift/orthogonal mask signaling indicate subcarrier position information; indices 001, 100, 111 in the cyclic shift/orthogonal mask signaling indicate another subcarrier location information; the remaining indices in the cyclic shift/orthogonal mask signaling indicate the third type of subcarrier location information. This is merely an example, and other division methods may be used as needed.

The sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at the even (odd) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block, the other sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at the odd (even) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block, and the third sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at all sub-carrier positions on the uplink demodulation reference symbol of the allocated physical resource block.

The method includes the steps of dividing and indicating different subcarrier position information or base sequence configuration information according to cyclic shift values in cyclic shift signaling, preferably, allocating the same subcarrier position information to a cyclic shift index with a larger cyclic shift value distance, and allocating different subcarrier position information or base sequence configuration to a cyclic shift index with a smaller cyclic shift value distance.

Wherein, a part of indexes in the cyclic shift signaling are used for indicating a piece of subcarrier position information, a part of indexes are used for indicating another piece of subcarrier position information, and the rest indexes are used for indicating a third piece of subcarrier position information.

Wherein, preferably,indexes 0, 3, 5 in the cyclic shift signaling indicate a subcarrier position information;indexes 1, 4, 7 in the cyclic shift signaling indicate another subcarrier location information;indexes 2, 6 in the cyclic shift signaling indicate the third subcarrier location information.

The sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at the even (odd) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block, the other sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at the odd (even) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block, and the third sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at all sub-carrier positions on the uplink demodulation reference symbol of the allocated physical resource block.

Wherein, a part of indexes in the cyclic shift signaling are used for indicating one kind of base sequence configuration information, and the rest indexes are used for indicating another kind of base sequence configuration information. Preferably,indexes 0, 2, 4, 6 in the cyclic shift signaling indicate a kind of base sequence configuration information;indexes 1, 3, 5, 7 in the cyclic shift signaling indicate another base sequence configuration information.

Wherein, one base sequence configuration information instructs the terminal to send the uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 1 (base sequence 2), and the other base sequence configuration information instructs the terminal to send the uplink demodulation reference symbol on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 2 (base sequence 1).

The first subcarrier position information is indicated according to a 3-bit cyclic shift signaling in a radio resource control signaling, wherein a part of indexes of the cyclic shift signaling are used for indicating one subcarrier position information, and the rest indexes are used for indicating another subcarrier position information.

Preferably, specifically,indexes 0, 3, 4, and 5 in the cyclic shift signaling indicate one piece of subcarrier location information, and the remaining indexes in the cyclic shift signaling are used to indicate another piece of subcarrier location information.

And the other piece of sub-carrier position information indicates that the terminal sends the uplink demodulation reference signal at the index position of even or odd sub-carriers on the uplink demodulation reference symbol of the allocated physical resource block.

The second subcarrier position information is indicated according to a 3-bit cyclic shift/orthogonal mask signaling in an uplink control signaling of a physical downlink control channel, wherein a part of indexes of the cyclic shift/orthogonal mask signaling are used for indicating one subcarrier position information, and the rest indexes are used for indicating another subcarrier position information.

Wherein, preferably, specifically, indexes 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling indicate a subcarrier position information; the remaining indices in the cyclic shift/orthogonal mask signaling indicate another subcarrier location information.

The sub-carrier position information indicates the terminal to send the uplink demodulation reference signal at the even (odd) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block, and the other sub-carrier position information indicates the terminal to send the uplink demodulation reference signal at the odd (even) sub-carrier index position on the uplink demodulation reference symbol of the allocated physical resource block.

Example 1

The network side carries out joint indication on the position of the cyclic shift/orthogonal mask/subcarrier of the user through the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel. Preferably, the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block according to table 1:

TABLE 1 Cyclic Shift/orthogonal mask/subcarrier position Joint indication

Wherein, in Table 1

A second cyclic shift value used on each layer for representing an uplink demodulation reference signal obtained by a user through an uplink control signaling of a downlink physical control channel, [ w^(λ)(0)w^(λ)(1)]And the orthogonal masks used by the user uplink demodulation reference signals on all layers are shown. The value of comb indicates the sub-carrier position occupied by user DMRS: comb i indicates that the user sends the uplink demodulation reference signal at the even (odd) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block; comb j indicates that the user sends the uplink demodulation reference signal at the odd (even) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block; comb k indicates that the user will send the uplink demodulation reference signal on all subcarriers on the uplink demodulation reference symbol of the allocated physical resource block. i, j, k represent three different symbols orIntegers, typically, i-0, j-1, and k-2.

At the receiving end, the R11 user receives the cyclic shift/orthogonal mask signaling and then analyzes the table completely, and the R10 user receives the cyclic shift/orthogonal mask signaling and then does not analyze the last column of the table.

For a scenario in which R11 users and R11 users are multiplexed:

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 000, 011 and 101 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 001, 100 and 110 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 000/011/101, 001/100/110 are mutually orthogonal by using different subcarrier positions;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 010 and 111 are orthogonal by using different cyclic shifts/orthogonal masks.

For a scenario where R11 users and R10 users are multiplexed one or two layers, or more than two layers are multiplexed but under small delay channel conditions:

if the cyclic shift/orthogonal mask index used by the R11 user is 010, the network side can preferentially allocate any one of the cyclic shift/orthogonal mask indexes remaining in table 1 to the R10 user;

if the cyclic shift/orthogonal mask index used by the R11 user is 111, the network side may preferentially allocate any of the cyclic shift/orthogonal mask indexes remaining in table 1 to the R10 user.

For the scenario of more than two-layer multiplexing of R11 users and R10 users, and under large-delay channel conditions:

if the cyclic shift/orthogonal mask index used by the R11 user is 010, the network side can preferentially allocate any one of the cyclic shift/orthogonal mask indexes except 011 and 100 remaining in table 1 to the R10 user;

if the cyclic shift/orthogonal mask index used by the R11 user is 111, the network side may preferentially allocate any one of the cyclic shift/orthogonal mask indexes except 101 and 110 remaining in table 1 to the R10 user.

Example 2

The network side carries out joint indication on the position of the cyclic shift/orthogonal mask/subcarrier of the user through the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel. Preferably, the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block according to table 2:

table 2 cyclic shift/orthogonal mask/subcarrier position joint indication

Wherein, in Table 2

A second cyclic shift value [ w ] representing an uplink demodulation reference signal obtained by a user through an uplink control signaling of a downlink physical control channel^(λ)(0)w^(λ)(1)]And the orthogonal mask represents the user uplink demodulation reference signal. The value of comb indicates the sub-carrier position occupied by user DMRS: comb i indicates that the user sends the uplink demodulation reference signal at the even (odd) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block; comb j indicates that the user sends the uplink demodulation reference signal at the odd (even) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block; comb k indicates that the user will be in the assigned physical stateAnd sending the uplink demodulation reference signal on all subcarriers on the uplink demodulation reference symbol of the resource block. i, j, k represent three different symbols or integers, typically i-0, j-1, k-2.

At the receiving end, the R11 user receives the cyclic shift/orthogonal mask signaling and then analyzes the table completely, and the R10 user receives the cyclic shift/orthogonal mask signaling and then does not analyze the last column of the table.

For a scenario in which R11 users and R11 users are multiplexed:

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 000, 010 and 101 are mutually orthogonal by using different cyclic shifts and/or orthogonal masks;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 001, 100 and 111 are mutually orthogonal by using different cyclic shifts and/or orthogonal masks;

the cyclic shift/orthogonal mask indices 000/010/101, 001/100/111 are mutually orthogonal by using different subcarrier positions;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 011 and 110 are orthogonal by using different cyclic shifts/orthogonal masks.

For a scenario where R11 users and R10 users are multiplexed one or two layers, or more than two layers are multiplexed but under small delay channel conditions:

if the cyclic shift/orthogonal mask index used by the R11 user is 011, the network side can preferentially allocate any of the remaining cyclic shift/orthogonal mask indexes in table 2 to the R10 user;

if the cyclic shift/orthogonal mask index used by the R11 user is 110, the network side may preferentially allocate any of the remaining cyclic shift/orthogonal mask indexes in table 2 to the R10 user.

For the scenario of more than two-layer multiplexing of R11 users and R10 users, and under large-delay channel conditions:

if the cyclic shift/orthogonal mask index used by the R11 user is 011, the network side can preferentially allocate all the cyclic shift/orthogonal mask indexes except 011 remaining in table 2 to the R10 user;

if the cyclic shift/orthogonal mask index used by the R11 user is 110, the network side may preferentially allocate all the cyclic shift/orthogonal mask indexes except 111 remaining in table 2 to the R10 user.

Example 3

The network side indicates the cyclic shift value and the subcarrier position of the user jointly through the original 3-bit cyclic shift signaling in the radio resource control signaling (RRC). Preferably, the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block according to table 3:

TABLE 3 Cyclic Shift/subcarrier position Joint indication

Wherein, in Table 3

Indicating a first cyclic shift value obtained by the user through radio resource control signaling. The value of comb indicates the sub-carrier position occupied by the user in the uplink demodulation reference symbol of the allocated physical resource block: indicating that the user transmits the uplink demodulation reference signal at an even (odd) subcarrier index position of the uplink demodulation reference symbol of the allocated physical resource block; comb j indicates that the user sends the uplink demodulation reference signal at the odd (even) subcarrier index position of the uplink demodulation reference symbol of the allocated physical resource block; comb k indicates that the user will demodulate the reference symbol in the uplink of the allocated physical resource blockAnd transmitting the uplink demodulation reference signals on all the subcarriers. i, j, k represent three different symbols or integers, typically i-0, j-1, k-2.

At the receiving end, the R11 user receives the cyclic shift/orthogonal mask signaling and then analyzes the table completely, and the R10 user receives the cyclic shift/orthogonal mask signaling and then does not analyze the last column of the table.

Example 4

The network side carries out two-stage indication on the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block:

and the network side carries out joint indication on the cyclic shift value and the first subcarrier position through original 3-bit cyclic shift signaling in radio resource control signaling (RRC). Preferably, the network side indicates the first subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block according to table 4:

TABLE 4 Cyclic Shift/first subcarrier position Joint indication

Wherein, in Table 4

Indicating a first cyclic shift value obtained by the user through radio resource control signaling. The value of comb1 indicates the first subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block: comb 1-w 0 indicates that the user will send the uplink demodulation reference signal on all subcarriers on the uplink demodulation reference symbol of the allocated physical resource block; comb 1-w 1 indicates that the user will send the uplink demodulation reference signal on even or odd subcarriers on the allocated physical resource block. w0 and w1 represent two different symbols or integers, typically w 0-0 and w 1-1.

And the network side carries out joint indication on the cyclic shift, the orthogonal mask and the position of the second subcarrier of the user through the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel. Preferably, the network side indicates the second subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in table 5:

TABLE 5 Cyclic Shift/orthogonal mask/second subcarrier position Joint indication

Wherein, in Table 5

A second cyclic shift value of the uplink reference signal obtained by the user through the uplink control signaling of the downlink control channel is represented; [ w ]^(λ)(0)w^(λ)(1)]An orthogonal mask representing an uplink demodulation reference signal. The value of comb2 indicates the sub-carrier position of the user on the allocated physical resource block: comb2 ═ i indicates that the user will send the uplink demodulation reference signal on even (odd) subcarriers on the allocated physical resource block; comb2 ═ j indicates that the user will send the uplink demodulation reference signal on the odd (even) subcarriers on the allocated physical resource block. i and j represent two different symbols or integers, typically i-0 and j-1.

When the comb value received by the user is w0, the user directly sends uplink demodulation reference signals corresponding to the first cyclic shift value on all subcarriers on the uplink demodulation reference symbols of the allocated physical resource block; when the user receives a comb value of w1, the user will continue to send uplink demodulation reference signals on its even or odd subcarriers as indicated by the signaling in table 5 below.

Example 5

The network side carries out joint indication on the cyclic shift/orthogonal mask/base sequence configuration information of the user through the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel. Preferably, the network side indicates the base sequence configuration information of the user on the allocated physical resource block according to table 6:

TABLE 6 Cyclic Shift/orthogonal mask/base sequence configuration information Joint indication

Wherein, in Table 6

A second cyclic shift value used on each layer for representing an uplink demodulation reference signal obtained by a user through an uplink control signaling of a downlink physical control channel, [ w^(λ)(0)w^(λ)(1)]And the orthogonal masks used by the user uplink demodulation reference signals on all layers are shown. The sequence value indicates the base sequence configuration information of the uplink demodulation reference signal of the user: sequence i indicates that the user is to transmit an uplink demodulation reference signal on an uplink demodulation reference symbol of the allocated physical resource block according to a base sequence 1 (base sequence 2); the sequence j indicates that the user is to transmit the uplink demodulation reference signal according to thebase sequence 2 on the uplink demodulation reference symbol of the allocated physical resource block. i, j, represent two different symbols or integers, typically i-0 and j-1.

Thebase sequence 1 is generated by a physical cell identifier of a cell in which the terminal is located, and thebase sequence 2 is generated by a virtual cell identifier of the cell in which the terminal is located. The virtual cell identifier is configured in advance by the network side.

At the receiving end, the R11 user receives the cyclic shift/orthogonal mask signaling and then analyzes the table completely, and the R10 user receives the cyclic shift/orthogonal mask signaling and then does not analyze the last column of the table.

For a scenario in which R11 users and R11 users are multiplexed:

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 000, 001, 010 and 111 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 011, 100, 101, 110 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 000/001/010/111, 011/100/101/110 are quasi-orthogonal to each other by using different base sequences.

For a scenario in which R11 users and R10 users are multiplexed:

the R10 user is always configured as thebase sequence 1 of the cell;

if the R11 user is also in the cell, thebase sequence 1 of the cell is configured to be orthogonal to the R10 user by using different cyclic shifts, and thebase sequence 2 of the cell is configured to be quasi-orthogonal to the R10 user by using different base sequences;

when the R11 user is in the cell cooperating with the cell, thebase sequence 2 of the cooperating cell is configured to be orthogonal to the R10 user by using different cyclic shifts, and thebase sequence 1 of the cooperating cell is configured to be quasi-orthogonal to thebase sequence 1 of the R10 user by using different cyclic shifts.

Example 6

The network side indicates the combination of the cyclic shift value and the base sequence configuration information of the user through the original 3-bit cyclic shift signaling in the radio resource control signaling (RRC). Preferably, the network side indicates the base sequence configuration information of the user on the allocated physical resource block according to table 7:

TABLE 7 Cyclic Shift/base sequence configuration information Joint indication

Wherein, in Table 7

Indicating a first cyclic shift value obtained by the user through radio resource control signaling. The sequence value indicates the base sequence configuration information of the uplink demodulation reference signal of the user: sequence i indicates that the user is to transmit an uplink demodulation reference signal on an uplink demodulation reference symbol of the allocated physical resource block according to a base sequence 1 (base sequence 2); sequence j indicates that the user is to transmit the uplink demodulation reference signal in the base sequence 2 (base sequence 1) on the uplink demodulation reference symbol of the allocated physical resource block. i, j represent two different symbols or integers, typically i-0 and j-1.

Thebase sequence 1 is generated by a physical cell identifier of a cell in which the terminal is located, and thebase sequence 2 is generated by a virtual cell identifier of the cell in which the terminal is located. The virtual cell identifier is configured in advance by the network side.

At the receiving end, the R11 user receives the cyclic shift/orthogonal mask signaling and then analyzes the table completely, and the R10 user receives the cyclic shift/orthogonal mask signaling and then does not analyze the last column of the table.

For a scenario in which R11 users and R11 users are multiplexed:

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 0, 2, 4 and 6 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 1, 3, 5 and 7 are mutually orthogonal by using different cyclic shifts;

the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indexes 0/2/4/6, 1/3/5/7 are quasi-orthogonal to each other by using different base sequences.

For a scenario in which R11 users and R10 users are multiplexed:

the R10 user is always configured as thebase sequence 1 of the cell;

if the R11 user is also in the cell, thebase sequence 1 of the cell is configured to be orthogonal to the R10 user by using different cyclic shifts, and thebase sequence 2 of the cell is configured to be quasi-orthogonal to the R10 user by using different base sequences;

when the R11 user is in the cell cooperating with the cell, thebase sequence 2 of the cooperating cell is configured to be orthogonal to the R10 user by using different cyclic shifts, and thebase sequence 1 of the cooperating cell is configured to be quasi-orthogonal to thebase sequence 1 of the R10 user by using different cyclic shifts.

An embodiment of the present invention further provides a base station, as shown in fig. 5, including: a signaling resource allocation module configured to: and indicating the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the radio resource control signaling of the physical downlink control channel.

For a signaling resource allocation module, please refer to the method embodiment specifically how to indicate subcarrier position information and/or base sequence configuration information.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

Claims (41)

1. A signaling resource allocation method for uplink demodulation reference signals is characterized by comprising the following steps:

the network side indicates the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the wireless resource control signaling of the physical downlink control channel.

2. The method of claim 1, wherein the network side indicates the subcarrier position information and/or base sequence configuration information by joint coding using original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling.

3. The method of claim 1, wherein the network side indicates the subcarrier position information and/or base sequence configuration information by joint coding using original 3-bit cyclic shift signaling of the radio resource control signaling.

4. The method of claim 1, wherein when the subcarrier position information includes two levels of subcarrier position information, the network side indicates the subcarrier position information of the uplink demodulation reference signal to the terminal through uplink control signaling and/or radio resource control signaling of a physical downlink control channel, and the method includes:

and the network side indicates the position information of the first subcarrier by using the original 3-bit cyclic shift signaling in the wireless resource control signaling in a joint coding mode, and indicates the position information of the second subcarrier by using the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling in the joint coding mode.

5. The method of claim 2, wherein the indicating the subcarrier position information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

indicating a subcarrier location information using a portion of an index of the cyclic shift/orthogonal mask signaling; a portion of the index indicates another subcarrier location information; the remaining index indicates third subcarrier location information.

6. The method of claim 5,

indicating a subcarrier position information using indexes 000, 011, 101 in the cyclic shift/orthogonal mask signaling;

indicating another subcarrier location information using indices 001, 100, 110 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indexes in the cyclic shift/orthogonal mask signaling;

or,

indicating a subcarrier position information using indexes 000, 010, 101 in the cyclic shift/orthogonal mask signaling;

indicating another subcarrier location information using indices 001, 100, 111 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indices in the cyclic shift/orthogonal mask signaling.

7. The method of claim 2, wherein the indicating the base sequence configuration information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

a part of the indexes of the cyclic shift/orthogonal mask signaling is used for indicating one kind of base sequence configuration information, and the rest indexes are used for indicating another kind of base sequence configuration information.

8. The method of claim 7,

indicating a base sequence configuration information using indexes 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling;

another base sequence configuration information is indicated using the indices 011, 100, 101, 110 in the cyclic shift/orthogonal mask signaling.

9. The method of claim 3, wherein the indicating the subcarrier position information by joint coding using the original 3-bit cyclic shift signaling of the radio resource control signaling comprises:

and using a part of indexes in the cyclic shift signaling to indicate one piece of subcarrier position information, a part of indexes to indicate another piece of subcarrier position information, and the rest indexes to indicate a third piece of subcarrier position information.

10. The method of claim 9,

using indexes 0, 3 and 5 in the cyclic shift signaling to indicate subcarrier position information; indicating another subcarrier location information using indices 1, 4, 7 in the cyclic shift signaling; and indicating the position information of the third subcarrier by using indexes 2 and 6 in the cyclic shift signaling.

11. The method of claim 3,

the indicating the base sequence configuration information by using the original 3-bit cyclic shift signaling of the radio resource control signaling through a joint coding mode comprises:

and using a part of indexes in the cyclic shift signaling to indicate one type of base sequence configuration information, and using the rest of indexes to indicate another type of base sequence configuration information.

12. The method of claim 11,

using indexes 0, 2, 4 and 6 in the cyclic shift signaling to indicate base sequence configuration information; and indicating another base sequence configuration information by using indexes 1, 3, 5 and 7 in the cyclic shift signaling.

13. The method according to claim 5, 6, 9 or 10, wherein the three sub-carrier position information are each one of:

instructing the terminal to send the uplink demodulation reference signal at the even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block,

instructing the terminal to send an uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource;

and instructing the terminal to send the uplink demodulation reference signal at all subcarrier index positions on the uplink demodulation reference symbol of the allocated physical resource.

14. The method of claim 7, 8, 11 or 12, wherein the two base sequence configuration information are respectively one of:

instructing the terminal to send an uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 1;

instructing the terminal to send an uplink demodulation reference symbol on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 2;

the base sequence 1 is generated by a physical cell identifier of a cell in which a terminal is located; the base sequence 2 is generated by a virtual cell identifier of a cell in which the terminal is located.

15. The method of claim 4, wherein the indicating the first subcarrier location information by joint coding using original 3-bit cyclic shift signaling in the radio resource control signaling comprises:

and using a part of indexes of the cyclic shift signaling to indicate one piece of subcarrier position information, and using the rest indexes to indicate the other piece of subcarrier position information.

16. The method of claim 15, wherein indices 0, 3, 4, 5 in the cyclic shift signaling are used to indicate one subcarrier location information and remaining indices in the cyclic shift signaling are used to indicate another subcarrier location information.

17. The method of claim 15 or 16,

the one subcarrier position information and the another subcarrier position information are respectively one of the following:

instructing the terminal to send uplink demodulation reference signals on all subcarriers on the uplink demodulation reference symbols of the allocated physical resource blocks;

and instructing the terminal to send the uplink demodulation reference signal at the even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.

18. The method of claim 4, wherein the indicating the second subcarrier location information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

a portion of the indices using the cyclic shift/orthogonal mask signaling indicate one subcarrier location information and the remaining indices indicate another subcarrier location information.

19. The method of claim 18, wherein indices 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling are used to indicate a subcarrier location information; indicating another subcarrier location information using remaining indices in the cyclic shift/orthogonal mask signaling.

20. The method of claim 18 or 19,

the one subcarrier position information and the another subcarrier position information are respectively one of the following:

instructing a terminal to send an uplink demodulation reference signal at an even subcarrier index position on an uplink demodulation reference symbol of an allocated physical resource block;

and instructing the terminal to send the uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource.

21. The method according to one of claims 1 to 12, wherein the method further comprises, after receiving the uplink control signaling and/or radio resource control signaling, the terminal transmitting the corresponding uplink demodulation reference signals using the corresponding base sequences at the corresponding subcarrier positions on the allocated physical resource block uplink demodulation reference symbols.

22. A base station, comprising: a signaling resource allocation module configured to: and indicating the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal to the terminal through the uplink control signaling and/or the radio resource control signaling of the physical downlink control channel.

23. The base station of claim 22, wherein the signaling resource allocation module indicates the subcarrier position information and/or base sequence configuration information by joint coding using original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling.

24. The base station of claim 22, wherein the signaling resource allocation module indicates the subcarrier position information and/or base sequence configuration information by joint coding using original 3-bit cyclic shift signaling of the radio resource control signaling.

25. The base station of claim 22, wherein the signaling resource allocation module indicates the subcarrier position information of the uplink demodulation reference signal to the terminal through uplink control signaling and/or radio resource control signaling of a physical downlink control channel, and comprises:

and indicating the position information of a first subcarrier by using the original 3-bit cyclic shift signaling in the radio resource control signaling in a joint coding mode, and indicating the position information of a second subcarrier by using the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling in the joint coding mode.

26. The base station of claim 23, wherein the signaling resource allocation module indicates the subcarrier position information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

indicating a subcarrier location information using a portion of an index of the cyclic shift/orthogonal mask signaling; a portion of the index indicates another subcarrier location information; the remaining index indicates third subcarrier location information.

27. The base station of claim 26,

the signaling resource allocation module is configured to:

indicating a subcarrier position information using indexes 000, 011, 101 in the cyclic shift/orthogonal mask signaling; indicating another subcarrier location information using indices 001, 100, 110 in the cyclic shift/orthogonal mask signaling; indicating third subcarrier position information using remaining indexes in the cyclic shift/orthogonal mask signaling;

or,

indicating a subcarrier position information using indexes 000, 010, 101 in the cyclic shift/orthogonal mask signaling;

indicating another subcarrier location information using indices 001, 100, 111 in the cyclic shift/orthogonal mask signaling;

indicating third subcarrier position information using remaining indices in the cyclic shift/orthogonal mask signaling.

28. The base station of claim 23, wherein the signaling resource allocation module indicates the base sequence configuration information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

a part of the indexes of the cyclic shift/orthogonal mask signaling is used for indicating one kind of base sequence configuration information, and the rest indexes are used for indicating another kind of base sequence configuration information.

29. The base station of claim 28,

the signaling resource allocation module is configured to:

indicating a base sequence configuration information using indexes 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling;

another base sequence configuration information is indicated using the indices 011, 100, 101, 110 in the cyclic shift/orthogonal mask signaling.

30. The base station of claim 24, wherein the signaling resource allocation module indicates the subcarrier location information by joint coding using original 3-bit cyclic shift signaling of the radio resource control signaling comprises:

and using a part of indexes in the cyclic shift signaling to indicate one piece of subcarrier position information, a part of indexes to indicate another piece of subcarrier position information, and the rest indexes to indicate a third piece of subcarrier position information.

31. The base station of claim 30,

the signaling resource allocation module is configured to: using indexes 0, 3 and 5 in the cyclic shift signaling to indicate subcarrier position information; indicating another subcarrier location information using indices 1, 4, 7 in the cyclic shift signaling; and indicating the position information of the third subcarrier by using indexes 2 and 6 in the cyclic shift signaling.

32. The base station of claim 24, wherein the signaling resource allocation module indicates the base sequence configuration information by joint coding using original 3-bit cyclic shift signaling of the uplink control signaling, and comprises:

and using a part of indexes in the cyclic shift signaling to indicate one type of base sequence configuration information, and using the rest of indexes to indicate another type of base sequence configuration information.

33. The base station of claim 32,

the signaling resource allocation module is configured to: using indexes 0, 2, 4 and 6 in the cyclic shift signaling to indicate base sequence configuration information; indexes 1, 3, 5, 7 in the cyclic shift signaling indicate another base sequence configuration information.

34. The base station of claim 26, 27, 30 or 31, wherein the three pieces of subcarrier location information are respectively one of:

instructing the terminal to send the uplink demodulation reference signal at the even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block,

instructing the terminal to send an uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource;

and instructing the terminal to send the uplink demodulation reference signal at all subcarrier index positions on the uplink demodulation reference symbol of the allocated physical resource.

35. The base station of claim 28, 29, 32 or 33, wherein the two base sequence configuration information are respectively one of:

instructing the terminal to send an uplink demodulation reference signal on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 1;

instructing the terminal to send an uplink demodulation reference symbol on the uplink demodulation reference symbol of the allocated physical resource block according to the base sequence 2;

the base sequence 1 is generated by a physical cell identifier of a cell in which a terminal is located; the base sequence 2 is generated by a virtual cell identifier of a cell in which the terminal is located.

36. The base station of claim 25, wherein the signaling resource allocation module indicates the first subcarrier location information by joint coding using original 3-bit cyclic shift signaling in the radio resource control signaling comprises:

and using a part of indexes of the cyclic shift signaling to indicate one piece of subcarrier position information, and using the rest indexes to indicate the other piece of subcarrier position information.

37. The base station of claim 36, wherein the signaling resource allocation module is to: indexes 0, 3, 4 and 5 in the cyclic shift signaling are used for indicating one piece of subcarrier position information, and the rest indexes in the cyclic shift signaling are used for indicating another piece of subcarrier position information.

38. The base station according to claim 36 or 37, wherein the one subcarrier location information and the another subcarrier location information are each one of:

instructing the terminal to send uplink demodulation reference signals on all subcarriers on the uplink demodulation reference symbols of the allocated physical resource blocks;

and instructing the terminal to send the uplink demodulation reference signal at the even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.

39. The base station of claim 25, wherein the signaling resource allocation module indicates the second subcarrier location information by joint coding using the original 3-bit cyclic shift/orthogonal mask signaling of the uplink control signaling comprises:

a portion of the indices using the cyclic shift/orthogonal mask signaling indicate one subcarrier location information and the remaining indices indicate another subcarrier location information.

40. The base station of claim 39, wherein the signaling resource allocation module is to: indicating a subcarrier location information using indices 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling; indicating another subcarrier location information using remaining indices in the cyclic shift/orthogonal mask signaling.

41. The base station of claim 39 or 40,

the one subcarrier position information and the another subcarrier position information are respectively one of the following:

instructing a terminal to send an uplink demodulation reference signal at an even subcarrier index position on an uplink demodulation reference symbol of an allocated physical resource block;

and instructing the terminal to send the uplink demodulation reference signal at the odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource.

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