CN112073104A - Uplink diversity transmission method, device and user equipment - Google Patents

Uplink diversity transmission method, device and user equipment Download PDF

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Publication number
CN112073104A
CN112073104A CN202010943832.2A CN202010943832A CN112073104A CN 112073104 A CN112073104 A CN 112073104A CN 202010943832 A CN202010943832 A CN 202010943832A CN 112073104 A CN112073104 A CN 112073104A
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uplink
information
sri
diversity transmission
transmission
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CN112073104B (en
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王化磊
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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

Abstract

The invention provides an uplink diversity transmission method, an uplink diversity transmission device and user equipment. The method comprises the following steps: detecting whether uplink diversity transmission is to be performed; when detecting that uplink diversity transmission is to be performed, determining rank information and SRI information for the uplink transmission; performing corresponding uplink diversity transmission according to the rank information and the SRI information; the determining rank information for uplink transmission comprises: determining a value of a rank for uplink transmission in a predefined manner; or, the value of the rank for uplink transmission is determined explicitly according to the uplink related scheduling information. The invention can determine the uplink diversity transmission scheme.

Description

Uplink diversity transmission method, device and user equipment
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an uplink diversity transmission method, an uplink diversity transmission device, and user equipment.
Background
Currently, 3GPP (3rd Generation Partnership Project) has explicitly supported three uplink transmission schemes: codebook-based transmission schemes, non-codebook-based transmission schemes, and diversity-based transmission schemes. For a codebook-based transmission scheme, a protocol already defines that scheduling information related to an uplink includes TRI (Transmitted Rank Indicator)/TPMI (Transmitted Precoding Matrix Indicator)/SRI (SRS Resource Indicator) information, and for a diversity-based transmission scheme, there is no specific design at present.
Disclosure of Invention
The uplink diversity transmission method, the device and the user equipment provided by the invention can determine the uplink diversity transmission scheme.
In a first aspect, the present invention provides an uplink diversity transmission method, including:
detecting whether uplink diversity transmission is to be performed;
when detecting that uplink diversity transmission is to be performed, determining rank information and SRI information for the uplink transmission;
performing corresponding uplink diversity transmission according to the rank information and the SRI information;
the determining rank information for uplink transmission comprises: determining a value of a rank for uplink transmission in a predefined manner; or, the value of the rank for uplink transmission is determined explicitly according to the uplink related scheduling information.
Optionally, the detecting whether uplink diversity transmission is to be performed includes:
determining uplink diversity transmission according to the configuration of the network high-level information; or,
determining uplink diversity transmission to be performed through blind detection of a DCI format; or,
and determining that uplink diversity transmission is to be performed by detecting the DCI information.
Optionally, determining the SRI information for uplink transmission includes: determining SRI information for uplink transmission according to uplink related scheduling information, wherein the uplink related scheduling information comprises one or more SRI information, and each SRI comprises one SRS port or a plurality of SRS ports.
Optionally, when the uplink related scheduling information includes SRI information of a plurality of single ports and a value of a rank of the uplink transmission is less than or equal to the number of SRIs, performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and performing uplink diversity transmission based on SRI group circulation, wherein one SRI group comprises SRIs which are randomly selected from a plurality of SRIs and have the number equal to the value of the rank.
Optionally, when the uplink related scheduling information includes SRI information of a multi-port and a value of a rank of the uplink transmission is less than or equal to the number of SRS ports included in an SRS resource corresponding to an SRI, performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and carrying out uplink diversity transmission based on the circulation of the port groups, wherein one port group comprises ports which are randomly selected from multiple ports and have the number equal to the value of the rank.
Optionally, when the scheduling information related to the uplink includes SRI information and TPMI information of a plurality of single ports, and the number of rows of a precoding matrix corresponding to the TPMI information is less than or equal to the number of SRIs, performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and performing uplink diversity transmission based on SRI group circulation, wherein one SRI group comprises SRIs which are randomly selected from a plurality of SRIs and have the same number of rows as the number of the rows of the precoding matrix corresponding to the TPMI information.
Optionally, when the uplink related scheduling information includes SRI information and TPMI information of a multi-port and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRS ports included in the SRS resource corresponding to the SRI, performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and carrying out uplink diversity transmission based on port group circulation, wherein one port group comprises ports which are arbitrarily selected from multiple ports and have the same number of rows of a precoding matrix corresponding to the TPMI information.
Optionally, when the uplink related scheduling information includes multiple multiport SRI information, the performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and carrying out uplink diversity transmission based on SRI group circulation.
Optionally, the method further comprises:
determining precoding resource block group size information for uplink transmission through system predefinition, RRC signaling, MAC CE information or DCI;
the performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and performing corresponding uplink diversity transmission of the size level of the precoding resource block group according to the rank information and the SRI information.
In a second aspect, the present invention provides an uplink diversity transmission apparatus, including:
a detecting unit, configured to detect whether uplink diversity transmission is to be performed;
a determining unit, configured to determine rank information and SRI information for uplink transmission when the detecting unit detects that uplink diversity transmission is to be performed;
a transmission unit, configured to perform corresponding uplink diversity transmission according to the rank information and the SRI information;
the determining unit is further configured to determine a value of a rank for uplink transmission in a predefined manner; or the value of the rank for uplink transmission is determined according to the uplink related scheduling information in a display mode.
Optionally, the detecting unit is configured to determine that uplink diversity transmission is to be performed according to configuration of network high-level information; or, determining to perform uplink diversity transmission through the blind detection DCI format; or, determining that uplink diversity transmission is to be performed by detecting the DCI information.
Optionally, the determining unit is configured to determine SRI information for uplink transmission according to uplink related scheduling information, where the uplink related scheduling information includes one or more SRI information, and each SRI includes one SRS port or multiple SRS ports.
Optionally, when the uplink related scheduling information includes multiple pieces of single-port SRI information and a value of a rank of the uplink transmission is less than or equal to the number of SRIs, the transmission unit is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from multiple SRIs and have the same number as the value of the rank.
Optionally, when the uplink related scheduling information includes SRI information of a multi-port and a value of a rank of uplink transmission is less than or equal to the number of SRS ports included in an SRS resource corresponding to the SRI, the transmission unit is configured to perform uplink diversity transmission based on port group circulation, where one port group includes ports that are arbitrarily selected from the multi-port and have a number equal to the value of the rank.
Optionally, when the scheduling information related to the uplink includes multiple pieces of single-port SRI information and TPMI information, and the number of rows of precoding matrices corresponding to the TPMI information is less than or equal to the number of SRIs, the transmission unit is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from multiple SRIs and have the same number of rows of precoding matrices corresponding to the TPMI information.
Optionally, when the scheduling information related to the uplink includes SRI information and TPMI information of one multi-port and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRS ports included in the SRS resource corresponding to the SRI, the transmission unit is configured to perform uplink diversity transmission based on port group circulation, where one port group includes ports that are arbitrarily selected from the multi-ports and have the same number of rows as the number of rows of the precoding matrix corresponding to the TPMI information.
Optionally, when the uplink related scheduling information includes multiple pieces of multiport SRI information, the transmission unit is configured to perform uplink diversity transmission based on SRI cycling.
Optionally, the determining unit is further configured to determine precoding resource block group size information for uplink transmission through system predefining, RRC signaling, MAC CE information, or DCI;
and the transmission unit is further configured to perform corresponding uplink diversity transmission of the precoding resource block group size level according to the rank information and the SRI information.
In a third aspect, the present invention provides a user equipment, where the user equipment includes the above uplink diversity transmitting apparatus.
The uplink diversity transmission method, the device and the user equipment provided by the embodiment of the invention determine the rank information and the SRI information for uplink transmission, and perform corresponding uplink diversity transmission according to the rank information and the SRI information, so that how to acquire the relevant information of the uplink diversity transmission can be determined, and how to determine to perform the corresponding uplink diversity transmission based on the relevant information.
Drawings
Fig. 1 is a flowchart of an uplink diversity transmission method according to an embodiment of the present invention;
fig. 2a, fig. 2b, fig. 2c and fig. 2d are schematic diagrams for providing uplink diversity transmission schemes according to embodiment 1 of the present invention;
fig. 3a, fig. 3b, fig. 3c and fig. 3d are schematic diagrams for providing uplink diversity transmission schemes according to embodiment 2 of the present invention;
fig. 4a, fig. 4b, fig. 4c and fig. 4d are schematic diagrams for providing uplink diversity transmission schemes according to embodiment 3 of the present invention;
fig. 5a and 5b are schematic diagrams for providing an uplink diversity transmission scheme according to embodiment 4 of the present invention;
fig. 6a and 6b are schematic diagrams for providing uplink diversity transmission schemes according to embodiment 5 of the present invention;
fig. 7a and 7b are schematic diagrams for providing an uplink diversity transmission scheme according to embodiment 6 of the present invention;
fig. 8 is a schematic structural diagram of an uplink diversity transmission apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides an uplink diversity transmission method, as shown in fig. 1, the method includes:
s11, the UE (User Equipment) detects whether uplink diversity transmission is to be performed.
Specifically, the UE may determine to perform uplink diversity transmission according to the configuration of the network high-level information; or, determining to perform uplink diversity transmission through a blind detection DCI format (DCI format); or, determining that uplink diversity transmission is to be performed by detecting the DCI information.
S12, when detecting that uplink diversity transmission is to be performed, the UE determines rank information and SRI information for the uplink transmission.
The UE may determine SRI information for uplink transmission according to uplink-related scheduling information, where the uplink-related scheduling information includes one or more pieces of SRI information, and each SRI includes one SRS (Sounding Reference Signal) port or multiple SRS ports.
One SRI represents a precoding matrix, which may be a precoding matrix in a digital domain, a precoding matrix in an analog domain, or a precoding matrix in a mixture of the digital domain and the analog domain. The UE can determine the value of the rank for uplink transmission in a predefined mode; or, the value of the rank for uplink transmission is determined explicitly according to the uplink related scheduling information, which is called "explicit determination", that is, the uplink related scheduling information includes the rank element and its value.
The UE may also determine a value of a rank for uplink transmission according to SRI information in the uplink-related scheduling information. Specifically, the UE may determine the minimum number of SRS ports included in each SRI information as a value of a rank for uplink transmission.
The UE may determine size Information of a PRG (Precoding Resource Block Group) for uplink transmission through RRC (Radio Resource Control) signaling, MAC CE (MAC Control Element) Information, or DCI (Downlink Control Information).
And S13, the UE performs corresponding uplink diversity transmission according to the rank information and the SRI information.
If the network configures the size information of the pre-coding resource block group, the UE can perform the diversity transmission of the size level of the pre-coding resource block group based on the SRI group or the circulation of the port group;
if the network does not configure the precoding Resource Block group size information, the UE may perform SRI group-based or port group cycle-based diversity transmission at a PRB (Physical Resource Block) level.
Specifically, the UE may decide the uplink diversity transmission scheme as follows:
if the rank value of uplink diversity transmission predefined by the system is N, and the uplink related scheduling information includes M single-port SRIs, where N, M are positive integers, and N is less than or equal to M, the UE may determine or select uplink diversity transmission based on network configuration, and further, the UE may perform cyclic diversity transmission based on SRI groups, where one SRI group corresponds to N SRIs arbitrarily selected from M SRIs.
If the rank value of uplink diversity transmission predefined by the system is N, and the uplink related scheduling information includes SRI information of K ports, where N, K are positive integers, and N is less than or equal to K, the UE may determine or select uplink diversity transmission based on network configuration, and further, the UE may perform diversity transmission based on port group circulation, where one port group arbitrarily selects N ports from the K ports.
If the uplink related scheduling information includes TRI and a multi-port SRI information, and the value of TRI is less than or equal to the number of ports, the UE may determine or select uplink diversity transmission based on network configuration, and further, the UE may perform diversity transmission based on port group circulation.
If the uplink related scheduling information includes a TRI and SRI information of a plurality of single ports, and the value of the TRI is less than or equal to the number of SRIs, the UE may determine or select uplink diversity transmission based on network configuration, and further, the UE may perform SRI group cyclic diversity transmission.
If the scheduling information related to the uplink includes the TRI, TPMI, and SRI information of a plurality of single ports, and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRIs, the UE may determine or select to perform uplink diversity transmission based on network configuration, and further, the UE may perform SRI group cyclic diversity transmission.
If the scheduling information related to the uplink includes TRI, TPMI, and SRI information of a multi-port, and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of ports, the UE may determine or select to perform uplink diversity transmission based on network configuration, and further, the UE may perform diversity transmission based on port group circulation.
If the uplink related scheduling information includes multiple multiport SRI information, the UE may determine or select uplink diversity transmission based on network configuration, and further, the UE may perform diversity transmission based on SRI cycling.
The uplink diversity transmission method provided by the embodiment of the invention determines the rank information and the SRI information for uplink transmission, and can judge that the transmission scheme is uplink diversity transmission or/and carry out corresponding uplink diversity transmission according to the rank information and the SRI information, so that how to acquire the relevant information of the uplink diversity transmission can be determined, and how to decide to carry out corresponding uplink diversity transmission based on the relevant information can be determined.
The uplink diversity transmission method of the present invention will be described in detail with reference to specific embodiments.
Example 1
The rank value of uplink diversity transmission predefined by the system is 1, and the uplink related scheduling information includes multiple single-port SRIs or one multi-port SRI information, so that the UE can decide or select uplink diversity transmission based on network configuration.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
if the uplink related scheduling information includes multiple pieces of single-port SRI information, the UE may select to perform SRI cycling. Such as: if the number of SRIs is 4, as shown in fig. 2a, a specific cycle is as follows: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-1- > SRI-3- > SRI-4}, etc.
If the uplink-related scheduling information includes a multi-port SRI information, the UE may select a port-based cycle, such as: if the SRI includes SRS ports with a number of 4, as shown in fig. 2b, a specific loop is as follows: { Port-1- > Port-2- > Port-3- > Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-2- > Port-2- > Port-3- > Port-4} and so on.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
1) if the uplink related scheduling information includes multiple pieces of single-port SRI information, the UE may select to perform SRI cycling. Such as: if the number of SRIs is 4, as shown in fig. 2c, a specific cycle is: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-2- > SRI-3- > SRI-4}, etc.
2) If the uplink-related scheduling information includes a multi-port SRI information, the UE may select a port-based cycle, such as: if the SRI includes SRS ports with a number of 4, as shown in fig. 2d, a specific loop method is: { Port-1- > Port-2- > Port-3- > Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-2- > Port-2- > Port-3- > Port-4} and so on.
Example 2
If the uplink related scheduling information includes TRI and a multi-port SRI information, and the value of TRI is less than or equal to the number of ports, the UE may determine or select uplink diversity transmission based on network configuration, and adopt a cycle based on the port group.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
if TRI is 1, and if SRI includes SRS ports of 4, as shown in fig. 3a, a specific loop is as follows: { Port-1- > Port-2- > Port-3- > Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-2- > Port-1- > Port-3- > Port-4} and so on.
If TRI is 2, and if SRI includes SRS ports of 4, as shown in fig. 3b, a specific loop is as follows: { Port-1, Port-2- > Port-3, Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-1, Port-4- > Port-2, Port-3}, etc.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
if TRI is 1, and if SRI includes SRS ports of 4, as shown in fig. 3c, a specific loop is as follows: { Port-1- > Port-2- > Port-3- > Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-2- > Port-1- > Port-3- > Port-4} and so on.
If TRI is 2, and if SRI includes SRS ports of 4, as shown in fig. 3d, a specific loop is as follows: { Port-1, Port-2- > Port-3, Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-1, Port-4- > Port-2, Port-3}, etc.
Example 3
If the uplink related scheduling information includes a TRI and SRI information of a plurality of single ports, and the value of the TRI is less than or equal to the number of SRIs, the UE may determine or select uplink diversity transmission based on network configuration, and adopt a cycle based on an SRI group.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
1) if the value of TRI is 1, and if the number of SRIs is 4, as shown in FIG. 4a, a specific cycle is: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-1- > SRI-3- > SRI-4}, etc.
2) If the value of TRI is 2, and if the number of SRIs is 4, as shown in FIG. 4b, a specific cycle is: { SRI-1, SRI-2- > SRI-3, SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-1, SRI-4- > SRI-2, SRI-3}, etc.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
1) if the value of TRI is 1, and if the number of SRIs is 4, as shown in FIG. 4c, a specific cycle is: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-1- > SRI-3- > SRI-4}, etc.
2) If the value of TRI is 2, and if the number of SRIs is 4, as shown in FIG. 4d, a specific cycle is: { SRI-1, SRI-2- > SRI-3, SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-1, SRI-4- > SRI-2, SRI-3}, etc.
Example 4
If the scheduling information related to the uplink includes the TRI, TPMI, and SRI information of a plurality of single ports, and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRIs, the UE may determine or select to perform uplink diversity transmission based on the network configuration, and adopt a cycle based on the SRI group.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
if the number of rows of the precoding matrix corresponding to the TPMI information is 2, and if the number of SRIs is 4, as shown in fig. 5a, a specific cyclic manner is: { SRI-1, SRI-2- > SRI-3, SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-1, SRI-4- > SRI-2, SRI-3}, etc.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
if the number of rows of the precoding matrix corresponding to the TPMI information is 2, and if the number of SRIs is 4, as shown in fig. 5b, a specific cyclic manner is: { SRI-1, SRI-2- > SRI-3, SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-1, SRI-4- > SRI-2, SRI-3}, etc.
Example 5
If the scheduling information related to the uplink includes TRI, TPMI, and SRI information of a multi-port, and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of ports, the UE may determine or select uplink diversity transmission based on the network configuration, and use a cycle based on the port group.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
if the number of rows of the precoding matrix corresponding to the TPMI information is 2, and if the number of SRS ports included in the SRI is 4, as shown in fig. 6a, a specific cyclic manner is: { Port-1, Port-2- > Port-3, Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-1, Port-4- > Port-2, Port-3}, etc.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
if the number of rows of the precoding matrix corresponding to the TPMI information is 2, and if the number of SRS ports included in the SRI is 4, as shown in fig. 6b, a specific cyclic manner is: { Port-1, Port-2- > Port-3, Port-4 }.
Of course, the UE may also select other rotation modes, such as { Port-1, Port-4- > Port-2, Port-3}, etc.
Example 6
If the uplink related scheduling information includes multiple pieces of multiport SRI information, and the number of SRIs is greater than 1, the UE may determine or select uplink diversity transmission based on network configuration, and use SRI-based cycling.
Further, if the network does not configure precoding resource block group size information or the precoding resource block group size is 1PRB, the UE may select PRB level cycling, specifically:
if the minimum port number is 1 and if the number of SRIs is 4, as shown in fig. 7a, a specific cycle is as follows: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-1- > SRI-3- > SRI-4}, etc.
Further, if the network configures the precoding resource block group size to be N PRB, the UE may select to perform N PRB level cycling, specifically:
if the minimum port number is 1 and if the number of SRIs is 4, as shown in fig. 7b, a specific cycle is as follows: { SRI-1- > SRI-2- > SRI-3- > SRI-4 }.
Of course, the UE may also select other rotation modes, such as { SRI-2- > SRI-1- > SRI-3- > SRI-4}, etc.
An embodiment of the present invention further provides an uplink diversity transmission apparatus, as shown in fig. 8, the apparatus includes:
a detecting unit 11, configured to detect whether uplink diversity transmission is to be performed;
a determining unit 12, configured to determine rank information and SRI information for uplink transmission when the detecting unit 11 detects that uplink diversity transmission is to be performed;
and a transmission unit 13, configured to perform corresponding uplink diversity transmission according to the rank information and the SRI information.
Optionally, the detecting unit 11 is configured to determine that uplink diversity transmission is to be performed according to configuration of network high-level information; or, determining to perform uplink diversity transmission through the blind detection DCI format; or, determining that uplink diversity transmission is to be performed by detecting the DCI information.
Optionally, the determining unit 12 is configured to determine SRI information for uplink transmission according to uplink related scheduling information, where the uplink related scheduling information includes one or more SRI information, and each SRI includes one SRS port or multiple SRS ports.
Optionally, the determining unit 12 is configured to determine, in a predefined manner, a value of a rank for uplink transmission; or the value of the rank for uplink transmission is determined according to the uplink related scheduling information in a display mode.
Optionally, the determining unit 12 is configured to determine, according to SRI information in the uplink-related scheduling information, a value of a rank for uplink transmission.
Further, the determining unit 12 is configured to determine the minimum number of SRS ports included in each SRI information as a value of a rank for uplink transmission.
Optionally, the determining unit 12 is configured to determine precoding resource block group size information for uplink transmission through RRC signaling, MAC CE information, or DCI.
Optionally, when the uplink related scheduling information includes multiple pieces of single-port SRI information and the rank of the uplink transmission takes a value less than or equal to the number of SRIs, the transmitting unit 13 is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from multiple SRIs and take a number equal to the rank.
Optionally, when the uplink related scheduling information includes SRI information of a multi-port and a value of a rank of the uplink transmission is less than or equal to the number of SRS ports included in an SRS resource corresponding to the SRI, the transmitting unit 13 is configured to perform uplink diversity transmission based on port group circulation, where one port group includes ports that are arbitrarily selected from the multi-port and have a number equal to the value of the rank.
Optionally, when the scheduling information related to the uplink includes multiple pieces of single-port SRI information and TPMI information, and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRIs, the transmitting unit 13 is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from multiple SRIs and have the same number of rows of the precoding matrix corresponding to the TPMI information.
Optionally, when the scheduling information related to the uplink includes SRI information and TPMI information of one multi-port and the number of rows of the precoding matrix corresponding to the TPMI information is less than or equal to the number of SRS ports included in the SRS resource corresponding to the SRI, the transmitting unit 13 is configured to perform uplink diversity transmission based on port group circulation, where one port group includes ports that are arbitrarily selected from the multi-ports and have the same number of rows of the precoding matrix corresponding to the TPMI information.
Optionally, when the uplink related scheduling information includes multiple pieces of multiport SRI information, the transmitting unit 13 is configured to perform uplink diversity transmission based on SRI circulation.
Further, the determining unit 12 is further configured to determine precoding resource block group size information for uplink transmission through system predefining, RRC signaling, MAC CE information, or DCI;
the transmission unit 13 is further configured to perform corresponding uplink diversity transmission of the precoding resource block group size level according to the rank information and the SRI information.
The uplink diversity transmission device provided by the embodiment of the invention determines the rank information and the SRI information for uplink transmission, and performs corresponding uplink diversity transmission according to the rank information and the SRI information, so that how to acquire the relevant information of the uplink diversity transmission can be determined, and how to determine to perform corresponding uplink diversity transmission based on the relevant information.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The embodiment of the invention also provides user equipment which comprises the uplink diversity transmission device.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (19)

1. An uplink diversity transmission method, comprising:
detecting whether uplink diversity transmission is to be performed;
when detecting that uplink diversity transmission is to be performed, determining rank information and SRI information for the uplink transmission;
performing corresponding uplink diversity transmission according to the rank information and the SRI information;
the determining rank information for uplink transmission comprises: determining a value of a rank for uplink transmission in a predefined manner; or, the value of the rank for uplink transmission is determined explicitly according to the uplink related scheduling information.
2. The method of claim 1, wherein the detecting whether uplink diversity transmission is to be performed comprises:
determining uplink diversity transmission according to the configuration of the network high-level information; or,
determining uplink diversity transmission to be performed through blind detection of a DCI format; or,
and determining that uplink diversity transmission is to be performed by detecting the DCI information.
3. The method of claim 1 or 2, wherein determining SRI information for uplink transmission comprises: determining SRI information for uplink transmission according to uplink related scheduling information, wherein the uplink related scheduling information comprises one or more SRI information, and each SRI comprises one SRS port or a plurality of SRS ports.
4. The method of claim 1, wherein when uplink-related scheduling information includes multiple pieces of single-port SRI information and a rank of the uplink transmission is less than or equal to a number of SRIs, performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and performing uplink diversity transmission based on SRI group circulation, wherein one SRI group comprises SRIs which are randomly selected from a plurality of SRIs and have the number equal to the value of the rank.
5. The method of claim 1, wherein when uplink-related scheduling information includes a multi-port SRI information and a rank of the uplink transmission is less than or equal to a number of SRS ports included in an SRS resource corresponding to the multi-port SRI, the performing corresponding uplink diversity transmission according to the rank information and the SRI information comprises: and carrying out uplink diversity transmission based on the circulation of the port groups, wherein one port group comprises ports which are randomly selected from multiple ports and have the number equal to the value of the rank.
6. The method of claim 1, wherein when the uplink-related scheduling information includes multiple single-port SRI information and TPMI information, and the number of rows of precoding matrices corresponding to the TPMI information is less than or equal to the number of SRIs, performing corresponding uplink diversity transmission according to the rank information and the SRI information comprises: and performing uplink diversity transmission based on SRI group circulation, wherein one SRI group comprises SRIs which are randomly selected from a plurality of SRIs and have the same number of rows as the number of the rows of the precoding matrix corresponding to the TPMI information.
7. The method of claim 1, wherein when the uplink-related scheduling information includes a multi-port SRI information and a TPMI information, and the number of rows of a precoding matrix corresponding to the TPMI information is less than or equal to the number of SRS ports included in an SRS resource corresponding to the multi-port SRI, the performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and carrying out uplink diversity transmission based on port group circulation, wherein one port group comprises ports which are arbitrarily selected from multiple ports and have the same number of rows of a precoding matrix corresponding to the TPMI information.
8. The method of claim 1, wherein when uplink-related scheduling information includes multiple multiport SRI information, the performing uplink diversity transmission according to the rank information and SRI information comprises: and carrying out uplink diversity transmission based on the SRI circulation.
9. The method according to any one of claims 4 to 8, further comprising:
determining precoding resource block group size information for uplink transmission through system predefinition, RRC signaling, MAC CE information or DCI;
the performing corresponding uplink diversity transmission according to the rank information and the SRI information includes: and performing corresponding uplink diversity transmission of the size level of the precoding resource block group according to the rank information and the SRI information.
10. An uplink diversity transmission apparatus, comprising:
a detecting unit, configured to detect whether uplink diversity transmission is to be performed;
a determining unit, configured to determine rank information and SRI information for uplink transmission when the detecting unit detects that uplink diversity transmission is to be performed;
a transmission unit, configured to perform corresponding uplink diversity transmission according to the rank information and the SRI information;
the determining unit is further configured to determine a value of a rank for uplink transmission in a predefined manner; or the value of the rank for uplink transmission is determined according to the uplink related scheduling information in a display mode.
11. The uplink diversity transmission apparatus according to claim 10, wherein the detecting unit is configured to determine that uplink diversity transmission is to be performed according to configuration of network higher layer information; or, determining to perform uplink diversity transmission through the blind detection DCI format; or, determining that uplink diversity transmission is to be performed by detecting the DCI information.
12. The uplink diversity transmission apparatus according to claim 10 or 11, wherein the determining unit is configured to determine SRI information for uplink transmission according to uplink related scheduling information, where the uplink related scheduling information includes one or more SRI information, and each SRI includes one SRS port or multiple SRS ports.
13. The uplink diversity transmission apparatus according to claim 10, wherein when the uplink-related scheduling information includes SRI information of a plurality of single ports and a rank of the uplink transmission is less than or equal to the number of SRIs, the transmission unit is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from a plurality of SRIs and equal to the rank.
14. The uplink diversity transmission apparatus according to claim 10, wherein when the uplink related scheduling information includes SRI information of a multi-port and a value of a rank of the uplink transmission is less than or equal to the number of SRS ports included in SRS resources corresponding to the SRI of the multi-port, the transmission unit is configured to perform uplink diversity transmission based on a port group cycle, where a port group includes ports that are arbitrarily selected from multiple ports and have a number equal to a value of the rank.
15. The uplink diversity transmission apparatus according to claim 10, wherein when the scheduling information related to the uplink includes SRI information and TPMI information of a plurality of single ports, and the number of rows of precoding matrices corresponding to the TPMI information is less than or equal to the number of SRIs, the transmission unit is configured to perform uplink diversity transmission based on SRI group circulation, where one SRI group includes SRIs that are arbitrarily selected from the plurality of SRIs and have the same number of rows of precoding matrices corresponding to the TPMI information.
16. The uplink diversity transmission apparatus according to claim 10, wherein when the scheduling information related to the uplink includes a multi-port SRI information and a TPMI information, and the number of rows of precoding matrices corresponding to the TPMI information is less than or equal to the number of SRS ports included in SRS resources corresponding to the multi-port SRI, the transmission unit is configured to perform uplink diversity transmission based on port group circulation, where a port group includes ports with the number equal to the number of rows of precoding matrices corresponding to the TPMI information arbitrarily selected from the multiple ports.
17. The uplink diversity transmission apparatus according to claim 10, wherein when the uplink-related scheduling information includes SRI information for a plurality of multiports, the transmission unit is configured to perform uplink diversity transmission based on SRI cycling.
18. The uplink diversity transmission apparatus according to any of claims 13 to 17, wherein the determining unit is further configured to determine precoding resource block group size information for uplink transmission through system predefining, RRC signaling, MAC CE information, or DCI;
and the transmission unit is further configured to perform corresponding uplink diversity transmission of the precoding resource block group size level according to the rank information and the SRI information.
19. A user equipment, characterized in that the user equipment comprises the uplink diversity transmission apparatus according to any of claims 10 to 18.
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