Nothing Special   »   [go: up one dir, main page]

CN111865530B - Reference signal configuration method and device and communication equipment - Google Patents

Reference signal configuration method and device and communication equipment Download PDF

Info

Publication number
CN111865530B
CN111865530B CN201910362136.XA CN201910362136A CN111865530B CN 111865530 B CN111865530 B CN 111865530B CN 201910362136 A CN201910362136 A CN 201910362136A CN 111865530 B CN111865530 B CN 111865530B
Authority
CN
China
Prior art keywords
communication mode
dmrs
base sequence
reference signal
mode terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910362136.XA
Other languages
Chinese (zh)
Other versions
CN111865530A (en
Inventor
李岩
王飞
金婧
郑毅
王启星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
Original Assignee
China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd, China Mobile Communications Ltd Research Institute filed Critical China Mobile Communications Group Co Ltd
Priority to CN201910362136.XA priority Critical patent/CN111865530B/en
Publication of CN111865530A publication Critical patent/CN111865530A/en
Application granted granted Critical
Publication of CN111865530B publication Critical patent/CN111865530B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a reference signal configuration method and device and communication equipment, and belongs to the technical field of wireless communication. The configuration method of the reference signal is applied to the network side equipment and comprises the following steps: configuring a reference signal by using a radio resource control message, wherein the radio resource control message is used for indicating a base sequence of the reference signal; and when the radio resource control message indicates that the base sequences of the reference signals are multiple, indicating the base sequences of the reference signals through downlink control information. According to the technical scheme, the terminal in the first communication mode can be flexibly switched between the DMRS base sequence in the first communication mode and the DMRS base sequence in the second communication mode.

Description

Reference signal configuration method and device and communication equipment
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for configuring a reference signal, and a communication device.
Background
The base sequences of the reference signals of UEs (User Equipment) following different communication modes can be the same or different, and when the base sequences are the same, MU-MIMO demodulation is not problematic; when the base sequences are different, the base sequences of the other parties are not known when MU-MIMO (Multi-User Multiple-Input Multiple-Output) is carried out, demodulation cannot be carried out, and the compatibility problem of the UE in different communication modes is brought.
Disclosure of Invention
The invention aims to provide a configuration method and device of a reference signal and communication equipment, which can enable a terminal in a first communication mode to flexibly switch between a DMRS base sequence in a first communication mode and a DMRS base sequence in a second communication mode.
In order to solve the technical problems, the embodiment of the invention provides the following technical scheme:
the embodiment of the invention provides a configuration method of a reference signal, which is applied to network side equipment and comprises the following steps:
configuring a reference signal by using a radio resource control message, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
and when the radio resource control message indicates that the base sequences of the reference signals are multiple, indicating the base sequences of the reference signals through downlink control information.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the terminal in the first communication mode is equal to or smaller than the first threshold and equal to or larger than the second threshold, the indicating the base sequence of the reference signal through the downlink control information includes:
and indicating the DMRS base sequence adopted by the DMRS of the terminal in the first communication mode through downlink control information.
Optionally, for the code division multiplexing group1 in the demodulation reference signal configuration type 1, the DMRS base sequence adopted by the DMRS of the first communication mode terminal is indicated to be the DMRS base sequence 1 or the DMRS base sequence 2 through 1-bit downlink control information;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating the DMRS base sequence adopted by the DMRS of the first communication mode terminal as the DMRS base sequence 1 or the DMRS base sequence 2 through 2bit DCI.
Optionally, the first threshold is 80% and the second threshold is 20%.
The embodiment of the invention also provides a configuration method of the reference signal, which is applied to the terminal in the first communication mode and comprises the following steps:
receiving a radio resource control message of a configuration reference signal of network side equipment, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
and when the radio resource control message indicates that the base sequences of the reference signals are multiple, receiving downlink control information for indicating the base sequences of the reference signals.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the terminal in the first communication mode is equal to or smaller than the first threshold and equal to or larger than the second threshold, the receiving the downlink control information for indicating the base sequence of the reference signal includes:
and receiving downlink control information of network side equipment, wherein the downlink control information indicates a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
Optionally, the first threshold is 80% and the second threshold is 20%.
The embodiment of the invention also provides a configuration device of the reference signal, which is applied to network side equipment and comprises a processor and a transceiver,
the processor is configured to configure a reference signal with a radio resource control message, wherein the radio resource control message is configured to indicate a base sequence of the reference signal;
the transceiver is configured to indicate the base sequence of the reference signal through downlink control information when the radio resource control message indicates that the base sequence of the reference signal is plural.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the first communication mode terminal is equal to or smaller than the first threshold and equal to or larger than the second threshold, the transceiver is further configured to indicate, through downlink control information, a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
Optionally, the transceiver is specifically configured to, for the code division multiplexing group1 in the demodulation reference signal configuration type 1, indicate, through the downlink control information of 1bit, that the DMRS base sequence adopted by the DMRS of the first communication mode terminal is the DMRS base sequence 1 or the DMRS base sequence 2;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating the DMRS base sequence adopted by the DMRS of the first communication mode terminal as the DMRS base sequence 1 or the DMRS base sequence 2 through 2bit DCI.
The embodiment of the invention also provides a configuration device of the reference signal, which is applied to the terminal of the first communication mode and comprises a processor and a transceiver,
the transceiver is configured to receive a radio resource control message of a configuration reference signal of a network side device, where the radio resource control message is configured to indicate a base sequence of the reference signal;
and when the radio resource control message indicates that the base sequences of the reference signals are multiple, receiving downlink control information for indicating the base sequences of the reference signals.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the first communication mode terminal is smaller than or equal to the first threshold and larger than or equal to the second threshold, the transceiver is further configured to receive downlink control information of the network side device, where the downlink control information indicates a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
The embodiment of the invention also provides a communication device, which comprises: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the method of configuring a reference signal as described above.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps in the method of configuring a reference signal as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, the base sequence of the reference signal of the UE can be indicated by the radio resource control message, so that the reference signal of the UE can be flexibly switched between the base sequences of different communication modes, and the compatibility problem of the UE of different communication modes is solved.
Drawings
Fig. 1 is a flow chart of a configuration method of a reference signal applied to a network side device according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for configuring a reference signal applied to a terminal in a first communication mode according to an embodiment of the present invention;
fig. 3 is a block diagram of a configuration apparatus of a reference signal applied to a network side device according to an embodiment of the present invention;
fig. 4 is a block diagram of a configuration apparatus of a reference signal applied to a terminal in a first communication mode according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments.
The DMRS (Demodulation Reference Signal ) CDM group (Code Division Multiplexing Group, code division multiplexing group) corresponds to the DMRS ports as follows:
DM-RS configuration type 1.
Figure BDA0002047141370000061
DMRS configuration type 2.
Figure BDA0002047141370000062
Figure BDA0002047141370000071
The DMRS base sequence of the UE in the existing first communication mode is:
Figure BDA0002047141370000072
the DMRS base sequence of the UE in the existing second communication mode is:
Figure BDA0002047141370000073
Where
n′ SCID (λ=0)=n SCID
n′ SCID (λ=1)=1-n SCID
n′ SCID (λ=2)=n SCID
wherein nSCID is a parameter indicated by DCI (Downlink Control Information ), and is 0 or 1; lambda represents CDM Group and is 0,1,2.
It can be seen by comparison that,
λ=0, the base sequence of the second communication mode is the same as the base sequence of the first communication mode;
λ=1, the base sequence of the second communication mode and the base sequence of the first communication mode are only nSCID different;
λ=2, the base sequence of the second communication mode is one more 217 than the base sequence of the first communication mode.
The base sequences of the first communication mode and the second communication mode being different brings about the following problems:
when the first communication mode and the second communication mode are MU-MIMO (Multi-User Multiple-Input Multiple-Output), configuration Type 1 is adopted if:
as shown in table 1: if a port of a UE (User Equipment) in a second communication mode is from CDM group 0, for example, port 0 for the first communication mode and port 1 for the second communication mode, the base sequences of the UE in the second communication mode and the UE in the first communication mode are the same, and MU-MIMO demodulation is not a problem;
if the port of the UE in the second communication mode is from CDM group1, for example, port 2 for the first communication mode and port 3 for the second communication mode, the base sequences of the UE in the second communication mode and the UE in the first communication mode are different, and the sequences of the other party are not known when in MU-MIMO;
when the first communication mode and the second communication mode are MU-MIMO, configuration Type 2 is used:
if the port of the UE in the second communication mode is from CDM group 0, for example, port 0 for the first communication mode and port 1 for the second communication mode, the base sequences of the UE in the second communication mode and the UE in the first communication mode are the same, and MU-MIMO demodulation is not a problem;
if the port of the UE in the second communication mode is from CDM group1, for example, port 2 for the first communication mode and port 3 for the second communication mode, the base sequences of the UE in the second communication mode and the UE in the first communication mode are different, and the sequences of the other party are not known when in MU-MIMO;
as shown in table 2: if the port of the UE in the second communication mode is from CDM group2, for example, port 4 for the first communication mode and port 5 for the second communication mode, the base sequences of the UE in the second communication mode and the UE in the first communication mode are different, and the sequences of the other party are not known in MU-MIMO, and demodulation is not possible.
TABLE 1
Figure BDA0002047141370000081
TABLE 2
Figure BDA0002047141370000082
When the base sequences of the first communication mode and the second communication mode are different, and the first communication mode and the second communication mode do MU-MIMO, correct demodulation cannot be completed because the base sequences of the other parties are not known, so that the compatibility problem of the UE in the first communication mode and the UE in the second communication mode is brought. This problem arises mainly due to the second communication mode UE changing DMRS base sequence.
In order to solve the above problems, embodiments of the present invention provide a method and apparatus for configuring a reference signal, and a communication device, which enable a terminal in a first communication mode to flexibly switch between a DMRS base sequence in a first communication mode and a DMRS base sequence in a second communication mode.
An embodiment of the present invention provides a method for configuring a reference signal, which is applied to a network side device, as shown in fig. 1, and includes:
step 101: configuring a reference signal by using a radio resource control message, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
step 102: and when the radio resource control message indicates that the base sequences of the reference signals are multiple, indicating the base sequences of the reference signals through downlink control information.
In this embodiment, the base sequence of the reference signal of the UE can be indicated by the radio resource control message, so that the reference signal of the UE can be flexibly switched between the base sequences of different communication modes, and the compatibility problem of the UE of different communication modes is solved.
Wherein the first communication mode terminal and the second communication mode terminal are terminals with different communication modes
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the terminal in the first communication mode is equal to or smaller than the first threshold and equal to or larger than the second threshold, the indicating the base sequence of the reference signal through the downlink control information includes:
and indicating the DMRS base sequence adopted by the DMRS of the terminal in the first communication mode through downlink control information.
Optionally, for the code division multiplexing group1 in the demodulation reference signal configuration type 1, the DMRS base sequence adopted by the DMRS of the first communication mode terminal is indicated to be the DMRS base sequence 1 or the DMRS base sequence 2 through 1-bit downlink control information;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating the DMRS base sequence adopted by the DMRS of the first communication mode terminal as the DMRS base sequence 1 or the DMRS base sequence 2 through 2bit DCI.
Further, the first threshold may be 80%, and the second threshold may be 20%. Of course, the first threshold is not limited to 80%, and the second threshold is not limited to 20%, but may take other values.
The embodiment of the invention also provides a configuration method of the reference signal, which is applied to the terminal in the first communication mode, as shown in fig. 2, and the embodiment comprises the following steps:
step 201: receiving a radio resource control message of a configuration reference signal of network side equipment, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
step 202: and when the radio resource control message indicates that the base sequences of the reference signals are multiple, receiving downlink control information for indicating the base sequences of the reference signals.
In this embodiment, the base sequence of the reference signal of the UE can be indicated by the radio resource control message, so that the reference signal of the UE can be flexibly switched between the base sequences of different communication modes, and the compatibility problem of the UE of different communication modes is solved.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the terminal in the first communication mode is equal to or smaller than the first threshold and equal to or larger than the second threshold, the receiving the downlink control information for indicating the base sequence of the reference signal includes:
and receiving downlink control information of network side equipment, wherein the downlink control information indicates a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
Further, the first threshold may be 80%, and the second threshold may be 20%. Of course, the first threshold is not limited to 80%, and the second threshold is not limited to 20%, but may take other values.
The technical scheme of the invention is further described as follows:
when the number of the first communication mode UEs (i.e., the terminals following the first communication mode protocol) in the network is relatively large, the network can directly configure the second communication mode UEs (i.e., the terminals following the second communication mode protocol) in the cell to adopt the DMRS base sequence of the first communication mode, so as to facilitate MU (Multi-User) pairing with the UEs of the first communication mode;
when more second communication mode UEs are in the network, most of the second communication mode UEs can be configured to adopt the DMRS base sequence of the second communication mode at this time, only a small part of the second communication mode UEs can adopt the DMRS base sequence of the first communication mode, and the part of the second communication mode UEs and the first communication mode UEs are in MU pairing.
However, in the network, the number of UEs in the first communication mode and the second communication mode is almost the same, and at this time, the network configures the UEs in the second communication mode to use the DMRS base sequence of the first communication mode and the DMRS base sequence of the second communication mode, and the UEs in the second communication mode can flexibly switch between the DMRS base sequences in the first communication mode and the second communication mode by means of DCI (Downlink Control Information ).
In the technical solution of this embodiment, according to the UE type duty ratio in the network, the UE in the second communication mode may flexibly switch between the DMRS base sequences in the first communication mode and the second communication mode by means of RRC (Radio Resource Control ) +dci indication.
Firstly, a network side can configure a DMRS base sequence to be selected from { a first communication mode DMRS base sequence, a second communication mode DMRS base sequence, a first communication mode or a second communication mode DMRS base sequence };
when the ratio of the UE in the second communication mode in the network is less than 20%, the UE in the second communication mode is configured by the RRC message to adopt the DMRS base sequence in the first communication mode, DCI activation is not needed, and the UE directly selects the base sequence according to the RRC configuration;
when the ratio of the UE in the second communication mode in the network is more than 80%, RRC configures a majority of the UEs in the second communication mode to adopt a DMRS base sequence in the second communication mode, and a small part of the UEs in the second communication mode adopt a DMRS base sequence in the first communication mode, so that DCI activation is not needed, and the UEs directly select the base sequence according to the RRC configuration;
when the UE duty ratio of the second communication mode in the network is between 20% and 80%, the RRC configures the UE of the second communication mode to use the DMRS base sequence of the first communication mode or the second communication mode, and the UE needs to determine its base sequence in combination with DCI activation:
for DMRS Configuration Type 1: 1bit DCI is required to indicate the base sequence of the UE
CDM group 0: the DMRS base sequence of the second communication mode is the same as the DMRS base sequence of the first communication mode, and switching is not needed;
CDM group 1: the 1bit DCI is required to indicate whether the CDM group1 of the UE in the second communication mode adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode, and when the UE in the second communication mode and the UE in the first communication mode do MU-MIMO, the DCI indicates 0, so that the CDM group1 of the UE in the second communication mode adopts the DMRS base sequence of the first communication mode, as shown in table 3:
TABLE 3 Table 3
DCI DMRS base sequences
0 First communication mode DMRS base sequence
1 Second communication mode DMRS base sequence
For DMRS Configuration Type 2:
CDM group 0: the DMRS base sequence of the second communication mode is the same as the DMRS base sequence of the first communication mode, and switching is not needed;
CDM group1 and CDM group2: the 1bit DCI is required to indicate whether CDM group1 and CDM group2 employ DMRS base sequences of the first communication mode or DMRS base sequences of the second communication mode, as shown in table 4:
TABLE 4 Table 4
Figure BDA0002047141370000121
Figure BDA0002047141370000131
Or CDM group1 and CDM group2: the 2bit DCI is required to jointly indicate whether CDM group1 and CDM group2 are DMRS base sequences in the first communication mode or DMRS base sequences in the second communication mode, as shown in table 5:
TABLE 5
Figure BDA0002047141370000132
It is also possible to use 1bit DCI to indicate whether CDM group1 and CDM group2 use DMRS base sequences of the first communication mode or DMRS base sequences of the second communication mode, respectively, as shown in table 6 and table 7:
TABLE 6
DCI CDM Group1DMRS base sequence
0 First communication mode DMRS base sequence
1 Second communication mode DMRS base sequence
TABLE 7
DCI CDM Group2DMRS base sequence
0 First communication mode DMRS base sequence
1 Second communication mode DMRS base sequence
The embodiment of the invention also provides a configuration device of the reference signal, which is applied to network side equipment, as shown in fig. 3, and comprises a processor 31 and a transceiver 32,
the processor 31 is configured to configure a reference signal with a radio resource control message, wherein the radio resource control message is used to indicate a base sequence of the reference signal;
the transceiver 32 is configured to indicate the base sequence of the reference signal by downlink control information when the radio resource control message indicates that the base sequence of the reference signal is plural.
In this embodiment, the base sequence of the reference signal of the UE can be indicated by the radio resource control message, so that the reference signal of the UE can be flexibly switched between the base sequences of different communication modes, and the compatibility problem of the UE of different communication modes is solved.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the first communication mode terminal is equal to or smaller than the first threshold and equal to or larger than the second threshold, the transceiver is further configured to indicate, through downlink control information, a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
Optionally, the transceiver is specifically configured to, for the code division multiplexing group1 in the demodulation reference signal configuration type 1, indicate, through the downlink control information of 1bit, that the DMRS base sequence adopted by the DMRS of the first communication mode terminal is the DMRS base sequence 1 or the DMRS base sequence 2;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating the DMRS base sequence adopted by the DMRS of the first communication mode terminal as the DMRS base sequence 1 or the DMRS base sequence 2 through 2bit DCI.
Further, the first threshold may be 80%, and the second threshold may be 20%. Of course, the first threshold is not limited to 80%, and the second threshold is not limited to 20%, but may take other values.
The embodiment of the invention also provides a configuration device of the reference signal, which is applied to the terminal in the first communication mode, as shown in fig. 4, and comprises a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive a radio resource control message of a configuration reference signal of a network side device, where the radio resource control message is used to indicate a base sequence of the reference signal;
and when the radio resource control message indicates that the base sequences of the reference signals are multiple, receiving downlink control information for indicating the base sequences of the reference signals.
In this embodiment, the base sequence of the reference signal of the UE can be indicated by the radio resource control message, so that the reference signal of the UE can be flexibly switched between the base sequences of different communication modes, and the compatibility problem of the UE of different communication modes is solved.
Optionally, the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
Optionally, when the duty ratio of the first communication mode terminal is smaller than or equal to the first threshold and larger than or equal to the second threshold, the transceiver is further configured to receive downlink control information of the network side device, where the downlink control information indicates a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
Further, the first threshold may be 80%, and the second threshold may be 20%. Of course, the first threshold is not limited to 80%, and the second threshold is not limited to 20%, but may take other values.
The embodiment of the invention also provides a communication device, which comprises: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the method of configuring a reference signal as described above.
The communication device may be a network side device or a UE.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps in the method of configuring a reference signal as described above.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, user equipment (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing user equipment to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing user equipment, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing user equipment to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing user equipment to cause a series of operational steps to be performed on the computer or other programmable user equipment to produce a computer implemented process such that the instructions which execute on the computer or other programmable user equipment provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or user device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or user device. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or user device comprising the element.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.

Claims (14)

1. The method for configuring the reference signal is applied to network side equipment and is characterized by comprising the following steps:
configuring a reference signal by using a radio resource control message, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
when the radio resource control message indicates that the base sequences of the reference signals are multiple, the base sequences of the reference signals are indicated through downlink control information;
the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
2. The method according to claim 1, wherein the indicating the base sequence of the reference signal by the downlink control information when the duty ratio of the terminal in the first communication mode is equal to or smaller than a first threshold value and equal to or larger than a second threshold value comprises:
and indicating the DMRS base sequence adopted by the DMRS of the terminal in the first communication mode through downlink control information.
3. The method for configuring a reference signal according to claim 1, wherein,
for the code division multiplexing group1 in the demodulation reference signal configuration type 1, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating that the DMRS base sequence adopted by the DMRS of the first communication mode terminal is the DMRS base sequence 1 or the DMRS base sequence 2 through 2-bit DCI.
4. The method of claim 1, wherein the first threshold is 80% and the second threshold is 20%.
5. A method for configuring a reference signal, applied to a terminal in a first communication mode, comprising:
receiving a radio resource control message of a configuration reference signal of network side equipment, wherein the radio resource control message is used for indicating a base sequence of the reference signal;
receiving downlink control information for indicating the base sequence of the reference signal when the radio resource control message indicates that the base sequence of the reference signal is a plurality of;
the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
6. The method according to claim 5, wherein receiving the downlink control information indicating the base sequence of the reference signal when the duty ratio of the terminal in the first communication mode is equal to or smaller than the first threshold and equal to or larger than the second threshold comprises:
and receiving downlink control information of network side equipment, wherein the downlink control information indicates a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
7. The method of claim 5, wherein the first threshold is 80% and the second threshold is 20%.
8. A configuration device of reference signals is characterized by being applied to network side equipment and comprising a processor and a transceiver,
the processor is configured to configure a reference signal with a radio resource control message, wherein the radio resource control message is configured to indicate a base sequence of the reference signal;
the transceiver is configured to indicate, when the radio resource control message indicates that the base sequences of the reference signals are plural, the base sequences of the reference signals through downlink control information;
the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
9. The apparatus for configuring reference signals according to claim 8, wherein the transceiver is further configured to indicate, via downlink control information, a DMRS base sequence employed by a DMRS of the first communication mode terminal when a duty cycle of the first communication mode terminal is equal to or smaller than a first threshold and equal to or greater than a second threshold.
10. The apparatus for configuring a reference signal according to claim 9, wherein,
the transceiver is specifically configured to, for the code division multiplexing group1 in the demodulation reference signal configuration type 1, instruct, through downlink control information of 1bit, that a DMRS base sequence adopted by a DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2;
for the code division multiplexing group1 and the code division multiplexing group2 in the demodulation reference signal configuration type 2, indicating that a DMRS base sequence adopted by the DMRS of the first communication mode terminal is a DMRS base sequence 1 or a DMRS base sequence 2 through 1-bit downlink control information respectively; or jointly indicating that the DMRS base sequence adopted by the DMRS of the first communication mode terminal is the DMRS base sequence 1 or the DMRS base sequence 2 through 2-bit DCI.
11. A reference signal configuration device is characterized by being applied to a first communication mode terminal and comprising a processor and a transceiver,
the transceiver is configured to receive a radio resource control message of a configuration reference signal of a network side device, where the radio resource control message is configured to indicate a base sequence of the reference signal;
receiving downlink control information for indicating the base sequence of the reference signal when the radio resource control message indicates that the base sequence of the reference signal is a plurality of;
the reference signal is a demodulation reference signal DMRS, and the radio resource control message indicates the following information:
when the duty ratio of the first communication mode terminal is larger than a first threshold value, the DMRS of the first communication mode terminal with larger than a preset percentage adopts a DMRS base sequence of a first communication mode, and the DMRS of the first communication mode terminal with smaller than or equal to the preset percentage adopts a DMRS base sequence of a second communication mode;
when the duty ratio of the first communication mode terminal is smaller than a second threshold value, the DMRS of the first communication mode terminal adopts a DMRS base sequence of a second communication mode;
and when the duty ratio of the first communication mode terminal is smaller than or equal to a first threshold value and larger than or equal to a second threshold value, the DMRS of the first communication mode terminal adopts the DMRS base sequence of the first communication mode or the DMRS base sequence of the second communication mode.
12. The apparatus for configuring reference signals according to claim 11, wherein the transceiver is further configured to receive downlink control information of a network side device when the duty ratio of the first communication mode terminal is equal to or smaller than the first threshold and equal to or larger than the second threshold, the downlink control information indicating a DMRS base sequence adopted by the DMRS of the first communication mode terminal.
13. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor realizes the steps in the method of configuring a reference signal as claimed in any one of claims 1 to 7.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method of configuring a reference signal according to any of claims 1 to 7.
CN201910362136.XA 2019-04-30 2019-04-30 Reference signal configuration method and device and communication equipment Active CN111865530B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910362136.XA CN111865530B (en) 2019-04-30 2019-04-30 Reference signal configuration method and device and communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910362136.XA CN111865530B (en) 2019-04-30 2019-04-30 Reference signal configuration method and device and communication equipment

Publications (2)

Publication Number Publication Date
CN111865530A CN111865530A (en) 2020-10-30
CN111865530B true CN111865530B (en) 2023-05-09

Family

ID=72965675

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910362136.XA Active CN111865530B (en) 2019-04-30 2019-04-30 Reference signal configuration method and device and communication equipment

Country Status (1)

Country Link
CN (1) CN111865530B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8811144B2 (en) * 2011-11-04 2014-08-19 Intel Corporation User equipment (UE)-specific assignment of demodulation reference signal (DMRS) sequences to support uplink (UL) coordinated multipoint (CoMP)
CN103220791A (en) * 2012-01-20 2013-07-24 中兴通讯股份有限公司 Signaling resource allocation method for uplink demodulation reference signals and base station
CN106455066B (en) * 2015-08-10 2020-05-08 上海诺基亚贝尔股份有限公司 Method and device for configuring downlink control information
CN106817210B (en) * 2015-12-02 2020-01-31 华为技术有限公司 Transmission method and device of reference signal sequence

Also Published As

Publication number Publication date
CN111865530A (en) 2020-10-30

Similar Documents

Publication Publication Date Title
CN110035527B (en) Resource indication method, terminal equipment and network equipment
CA2853704C (en) Method for receiving and sending control channel, user equipment and base station
CN101695191B (en) System and method for distributing measurement reference signal resource
CN110247749B (en) Resource indication method, network device, apparatus and storage medium
CN108631986B (en) Method and device for determining DMRS (demodulation reference signal) resources of downlink control channel
CN103828454B (en) Configure method, base station and the user equipment of reference signal
WO2014110928A1 (en) Uplink demodulation reference signal sending method, apparatus and system
AU2017394800A1 (en) Method for transmitting downlink control information, terminal device and network device
CN108616341B (en) Data transmission method, base station and terminal
CN106470495B (en) A kind of dispatching method and device
CN103841644A (en) Method, device and system for transmitting demodulation reference signals (DMRSs)
EP3255908B1 (en) Method and apparatus for transmitting downlink control information
CN111971905B (en) Method and apparatus for dynamic transmit diversity backoff
CN108476085A (en) Wireless communications method and equipment
CA3012875A1 (en) Reference signal transmission method, apparatus, and system
CN106685580B (en) Data processing method and device
CN111147206B (en) Information configuration and information sending and receiving method, device and storage medium
CN115150231B (en) Method and device for determining precoding and detecting data
US11641226B2 (en) Precoding processing method and apparatus for data, and storage medium
CN111865530B (en) Reference signal configuration method and device and communication equipment
CN111867029B (en) Uplink open loop power control method and device and communication equipment
CN108289008B (en) Transmission scheme configuration method and related equipment
US9763242B2 (en) Channel-state information reference symbol scheduling in license-assisted access LTE
CN110535582A (en) Transmission method, device, sending ending equipment and the storage medium of physical control channel
JP2021500776A (en) Channel quality index CQI calculation method, terminal equipment, and network equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant