WO2021027513A1 - 确定天线端口映射方法和终端 - Google Patents
确定天线端口映射方法和终端 Download PDFInfo
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- WO2021027513A1 WO2021027513A1 PCT/CN2020/103507 CN2020103507W WO2021027513A1 WO 2021027513 A1 WO2021027513 A1 WO 2021027513A1 CN 2020103507 W CN2020103507 W CN 2020103507W WO 2021027513 A1 WO2021027513 A1 WO 2021027513A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0026—Division using four or more dimensions
Definitions
- the present disclosure relates to the field of communication technology, and in particular to a method and terminal for determining antenna port mapping.
- Sounding Reference Signal Sounding Reference Signal
- comb-2 Sounding Reference Signal
- comb-4 comb size of 4
- the embodiments of the present disclosure provide a method and terminal for determining antenna port mapping to solve the problem of poor coverage and audibility of SRS.
- embodiments of the present disclosure provide a method for determining antenna port mapping, which is applied to a terminal, and includes:
- a terminal including:
- the determining module is configured to determine the antenna port mapping of the SRS according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb size of N, the N is an even number greater than 4, and the number of antenna ports is 1, 2 or 4.
- an embodiment of the present disclosure provides a terminal, including: a memory, a processor, and a program stored on the memory and capable of running on the processor, and the program is executed by the processor to realize this
- the steps in the method for determining antenna port mapping provided by the disclosed embodiments are disclosed.
- an embodiment of the present disclosure provides a computer-readable storage medium with a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the determining antenna port mapping provided by the embodiment of the present disclosure is implemented Steps in the method.
- the antenna port mapping of the SRS is determined according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb-like comb size of N, and the N is an even number greater than 4, and the antenna The number of ports is 1, 2 or 4.
- the antenna port mapping of the SRS with a comb size greater than 4 can be realized, thereby supporting the transmission of the SRS with a comb size greater than 4, making the SRS more sparse, and thereby improving the coverage effect and audibility of the SRS.
- FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure
- Fig. 2 is a flowchart of a method for determining antenna port mapping provided by an embodiment of the present disclosure
- Figure 3 is a structural diagram of a terminal provided by an embodiment of the present disclosure.
- Fig. 4 is a structural diagram of another terminal provided by an embodiment of the present disclosure.
- words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more optional or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
- the wireless communication system may be a New Radio (NR) system, or an evolved long term evolution (evolved Long Term Evolution, eLTE) system, or a long term evolution (Long Term Evolution, LTE) system, or a subsequent evolved communication system.
- NR New Radio
- eLTE evolved Long Term Evolution
- LTE Long Term Evolution
- FIG. 1 is a structural diagram of a network system applicable to the embodiments of the present disclosure. As shown in FIG. 1, it includes a terminal 11 and a network device 12.
- the terminal 11 may be a user terminal (User Equipment, UE). ) Or other terminal side devices, such as: mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop Computer), personal digital assistants (PDA), mobile Internet devices (Mobile Internet Device, MID),
- UE User Equipment
- PDA personal digital assistants
- mobile Internet devices Mobile Internet Device, MID
- For terminal-side devices such as wearable devices (Wearable Devices) or robots, it should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure.
- the aforementioned network device 12 may be a fourth generation (4 th generation, 4G) base station, or a fifth generation (5 th generation, 5G) base station, or a later version of the base station, or a base station in other communication systems, or called a node B, Evolved Node B, or Transmission Reception Point (TRP), or Access Point (Access Point, AP), or other words in the field, as long as the same technical effect is achieved, the network equipment is not limited Specific technical vocabulary.
- the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that in the embodiments of the present disclosure, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
- FIG. 2 is a flowchart of a method for determining antenna port mapping provided by an embodiment of the present disclosure. The method is applied to a terminal, as shown in FIG. 2, and includes the following steps:
- Step 201 Determine the mapping (parameter) of the antenna ports of the SRS according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb size of N, the N is an even number greater than 4, and the number of antenna ports It is 1, 2 or 4.
- the above-mentioned SRS with a comb size of N may be SRS with a comb size of 6, 8, 12, or other even-numbered SRSs greater than 4.
- the number of antenna ports may correspond to the size of the comb. For example, when the size of the comb is 6, 8, or 12, the number of antenna ports may be 1, 2, or 4.
- the foregoing determination of the mapping of the antenna ports of the SRS according to the number of antenna ports of the SRS may be determining the mapping of the antenna ports of the SRS according to the relationship between the antenna port mapping set and the antenna port number set. Each antenna port of the SRS is mapped, and the SRS is transmitted through the antenna port of the SRS.
- the antenna port mapping can also be understood as the antenna port mapping parameter (or called mapping information), for example: the location of the antenna port mapping of the SRS, the sequence of the antenna port mapping of the SRS Parameters (or information) related to antenna port mapping, such as the cyclic shift.
- mapping information for example: the location of the antenna port mapping of the SRS, the sequence of the antenna port mapping of the SRS Parameters (or information) related to antenna port mapping, such as the cyclic shift.
- the antenna port mapping of the SRS with a comb size greater than 4 can be realized through the above steps, thereby supporting the transmission of SRS with a comb size greater than 4, making SRS more sparse, and making SRS coverage better, and because SRS is more sparse , So that it is easier to be monitored, thereby improving the audibility of SRS.
- the above-mentioned SRS antenna port mapping includes at least one of the following:
- the comb position can be the resource element (Resource Element, RE) position, for example: on a certain Orthogonal Frequency Division Multiplexing (OFDM) symbol, in the first Resource Block (Resource Block, where SRS is located) RB) or the starting position of the RE in a certain RB.
- the starting position of RE is a natural number smaller than the size of comb, such as comb-6, the starting position of RE is 0,1,2...5; comb-8, the starting position of RE is 0,1,2,3...7; comb- 12.
- the starting position of RE is 0,1,2,3...11.
- mapping to different comb positions it can refer to mapping to a certain OFDM symbol, mapping to a different RE starting position in an RB, and mapping to a different comb position in a certain OFDM symbol, that is, mapping to Frequency division multiplexing on the FDM RE.
- the cyclic shift of the sequence mapped to the antenna port of the SRS may be the cyclic shift of the sequence of each antenna port of the SRS, and the cyclic shift of the sequence mapped to different antenna ports may be different, or part of the antenna port mapped
- the cyclic shift of the sequence is the same, and there is no limitation on this.
- the comb position of the antenna port mapping of the above-mentioned SRS may be the comb position of each antenna port mapping of the SRS, and the comb positions of different antenna port mappings may be different, or the comb positions of some antenna port mappings may be the same. limited.
- the cyclic shift of the sequence is determined according to at least one of a cyclic shift offset value, a maximum cyclic shift number, and an antenna port sequence number.
- the foregoing determination based on at least one of the cyclic shift offset value, the maximum cyclic shift number, and the antenna port number may be determined based on at least one of the cyclic shift offset value, the maximum cyclic shift number, and the antenna port number.
- a one-term formula determines the cyclic shift of the sequence of each antenna port.
- this is not limited.
- the mapping relationship between at least one of the cyclic shift offset value, the maximum cyclic shift number, and the antenna port number and the cyclic shift can also be pre-configured, so that the mapping relationship is used to determine each Cyclic shift of the sequence of antenna ports.
- the cyclic shift of the sequence of each antenna port can be accurately determined according to at least one of the cyclic shift offset value, the maximum cyclic shift number, and the antenna port sequence number.
- the position of the comb is determined based on at least one of whether frequency division multiplexing (FDM), comb offset value, maximum cyclic shift number, antenna port number, and comb size of the SRS .
- FDM frequency division multiplexing
- the foregoing determination based on at least one of whether FDM, comb offset value, maximum cyclic shift number, antenna port serial number, and comb size of the SRS may be determined based on including the maximum cyclic shift number, antenna port serial number, and The formula of at least one item in the comb size of the SRS determines the comb position of each antenna port mapping, and it can also be combined with whether each antenna port is FDM.
- this is not limited.
- the cyclic shift of the sequence of each antenna port can be accurately determined according to at least one of FDM, comb offset value, maximum cyclic shift number, antenna port number, and the comb size of the SRS.
- At least one of the above-mentioned cyclic shift offset value, FDM, comb offset value, maximum cyclic shift number, antenna port number, and the comb size of the SRS may be agreed upon by the protocol or indicated by the network. .
- at least one of the above-mentioned cyclic shift offset value, FDM or not, comb offset value, maximum cyclic shift number, antenna port number, and the comb size of the SRS configured by the network side through RRC signaling.
- the 4 antenna ports of the SRS are divided into 2 groups, and the antenna ports in the same group are mapped to the same comb position, the antenna ports in the same group are mapped to different cyclic shift sequences, and the antenna ports of different groups are mapped to different comb position.
- the cyclic shift offset value has no relationship with the FDM mode, and the two are independent.
- the mapping of 4 antenna ports is related to the cyclic shift of the sequence and is related to FDM, but the FDM method is related to the cyclic shift offset value Irrelevant, that is to say, these 4 antenna ports can be distinguished by the cyclic shift of the sequence, and also distinguished by FDM at the same time, and they are not considered in FDM influences.
- the foregoing 4 antenna ports may be divided into 2 groups with 2 antenna ports in each group.
- the antenna ports in the same group are mapped to different cyclic shift sequences, and the antenna ports of different groups are mapped to different combs. Position, in this way, the antenna ports in one antenna port group can be mapped to the same comb position, distinguished by different cyclic shifts, and different comb positions are distinguished between groups to save comb positions.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the calculation formula is exemplified by the antenna port sequence being 1000+i, and i is an integer greater than or equal to 0.
- the antenna port sequence is not limited to 1000+i, it can also be i+ other values or not added.
- the formula provided in the embodiments of the present disclosure can also be used, but the antenna needs to be replaced.
- the value of the port sequence is the value obtained by replacing 1000 in the formula, or 1000+i.
- the 4 antenna ports of the SRS are distinguished by at least one of sequence cyclic shift and FDM.
- the four antenna ports of the above SRS can be distinguished by at least one of the cyclic shift of the sequence and the FDM.
- the four antenna ports can be distinguished by the cyclic shift of the sequence or FDM at the same time, for example: different antenna port mapping Different antenna ports (or antenna port groups) have different cyclic shifts, or different antenna ports (or antenna port groups) have different comb positions, or different antenna port mapping sequences have different cyclic shifts. At the same time, different antenna ports (or antenna port groups) are mapped The comb position is also different.
- the flexibility of antenna port mapping can be improved.
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by FDM, among which, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of FDM and sequence cyclic shift, where, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM.
- the foregoing FDM manner may be related to the cyclic shift offset value, and the influence of the cyclic shift offset value needs to be considered when performing FDM. It should be noted that, in the embodiments of the present disclosure, it is not limited how to perform FDM considering the influence of the cyclic shift offset value, and it may specifically be configured according to actual scenario requirements.
- the mapping of 4 antenna ports is related to the cyclic shift of the sequence and FDM
- the FDM mode is related to the cyclic shift offset value
- the 4 antenna ports can be distinguished by the cyclic shift of the sequence, and also by FDM at the same time, and the influence of the cyclic shift offset value to be considered during FDM.
- the four antenna ports of the SRS can be distinguished by FDM.
- the mapping of the antenna port is only distinguished by FDM, and the cyclic shift of the sequence is not configured (that is, the mapping of the antenna port is not distinguished by the cyclic shift of the sequence).
- the four antenna ports of the SRS can be distinguished by at least one of FDM and the cyclic shift of the sequence.
- the antenna port mapping is distinguished from FDM by cyclic shift.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the above formula can realize that when the number of antenna ports is 4 and the comb size is an even number greater than 4, the cyclic shift of the sequence and the position of the comb can be allocated to the 4 antenna ports accordingly, thereby improving the transmission performance of the SRS.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the two antenna ports of the SRS are distinguished by at least one of sequence cyclic shift distinction and FDM.
- the two antenna ports of the above SRS can be distinguished by at least one of the cyclic shift of the sequence and the FDM.
- the mapping method of the antenna port is related to the FDM and the cyclic shift of the sequence.
- the FDM method is related to the cyclic shift. Offset value It is irrelevant, that is, the two antenna ports are not only distinguished by FDM, but also by the cyclic shift of the sequence.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the FDM mode is related to the cyclic shift offset value:
- the two antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM; or
- the two antenna ports of the SRS are distinguished by the cyclic shift of the sequence.
- the mapping of the antenna port may be related to the cyclic shift of the sequence and FDM, and the FDM mode is related to the cyclic shift offset value. related. Rudang
- the two antenna ports can be distinguished by the cyclic shift of FDM and sequence; The two antenna ports can be distinguished only by the cyclic shift of the sequence.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the FDM mode is independent of the cyclic shift offset value.
- the four antenna ports may be related to FDM, not related to the cyclic shift of the sequence, and the FDM mode is related to the cyclic shift offset value. Irrelevant, that is, it can be distinguished by FDM only, the cyclic shift of the sequence may not be configured, and the FDM method is not influences.
- the number of antenna ports mentioned above is 2, and the FDM mode is independent of the cyclic shift offset value.
- the two antenna ports may be related to FDM, not related to the cyclic shift of the sequence, and the FDM mode is related to the cyclic shift.
- Bit offset Irrelevant that is, it can be distinguished by FDM only, the cyclic shift of the sequence may not be configured, and the FDM method is not influences.
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value, Represents the number of antenna ports, Represents the maximum number of cyclic shifts, p i represents the serial number of antenna port i, Is the comb position mapped by the antenna port i, Indicates the offset value of the comb.
- the antenna port may only be related to the cyclic shift of the sequence, not FDM, that is, it may be distinguished only by the cyclic shift of the sequence.
- the comb offset value when the antenna port i is mapped is the lowest RE position in one RB of an OFDM symbol where the SRS is configured when the number of antenna ports is configured to 1, wherein the antenna Port i is any antenna of the SRS;
- the comb offset value is configured on the network side, for example, it can be indicated by the combOffset in the transmissionComb field in the RRC signaling. Of course, this is not limited. For example, it can be indicated by other fields in the RRC signaling.
- the above-mentioned one OFDM symbol can be any symbol where the SRS is located when the number of antenna ports is configured to 1, or a specific OFDM, which can be specifically referred to as a certain OFDM symbol, and the above-mentioned one RB can be the starting RB or some other RB.
- the aforementioned lowest RE position may also be referred to as the lowest RE offset.
- the SRS is an SRS used for positioning.
- the number of antenna ports of the SRS may be limited to 1 or 2.
- it can be agreed by a protocol or indicated by the network.
- the maximum number of cyclic shifts can be 6, 3, or 2; when the comb size is 6, the maximum number of cyclic shifts can be 8, 4, or 2; when the comb size is When it is 12, the maximum number of cyclic shifts can be 4 or 2.
- the maximum number of cyclic shifts can be agreed by the protocol or indicated by the network.
- SRS may also be called SRS resources.
- the number of antenna ports of SRS can be limited to 1 or 2, so that the cyclic shift of the sequence is better distributed, and the comb position of the antenna port mapping is also better. Allocation, the orthogonality between antenna ports is better, thereby improving the transmission performance of SRS.
- the number of antenna ports of the above-mentioned SRS can be limited to 1 or 2, which can be agreed by the protocol or indicated by the network, and in this embodiment, it is preferentially applied to a structure with a comb size of 8 (comb-8). Of course, this is not limited, for example, it can also be applied to structures such as comb size 6 (comb-6) and comb size 12 (comb-12).
- the method for determining the antenna port mapping can be determined by the determining method provided in the present disclosure.
- the determined method of determining the comb size of 2 or 4 may also be reused. , Or you can use the new mapping method defined in the subsequent protocol version.
- At least one of the comb size, the number of antenna ports, and the manner of determining the mapping is agreed upon by a protocol or indicated by the network.
- At least one of the above items can be through radio resource control (Radio resource control, RRC) signaling, medium access control control element (Medium access control control element, MAC CE), and downlink control information (Downlink Control Information, DCI) signaling
- RRC Radio resource control
- Medium access control control element Medium access control control element
- DCI Downlink Control Information
- At least one indication such as multiple signaling indicating at least one of the foregoing, or a certain signaling indicating the foregoing at least one, etc.
- the foregoing manner of determining the mapping may be various manners of determining the cyclic shift and comb position of the sequence provided in the embodiments of the present disclosure.
- the antenna port mapping of the SRS is determined according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb-like comb size of N, and the N is an even number greater than 4, and the antenna The number of ports is 1, 2 or 4.
- the antenna port mapping of the SRS with a comb size greater than 4 can be realized, thereby supporting the transmission of the SRS with a comb size greater than 4, making the SRS more sparse, and thereby improving the coverage effect and audibility of the SRS.
- FIG. 3 is a structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in FIG. 3, the terminal 300 includes:
- the determining module 301 is configured to determine the antenna port mapping of the SRS according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb size of N, the N is an even number greater than 4, and the number of antenna ports It is 1, 2 or 4.
- mapping of the antenna ports of the SRS includes at least one of the following:
- the cyclic shift of the sequence is determined according to at least one of a cyclic shift offset value, a maximum cyclic shift number, and an antenna port sequence number; and/or
- the position of the comb is determined according to at least one of FDM, comb offset value, maximum cyclic shift number, antenna port number, and comb size of the SRS.
- the 4 antenna ports of the SRS are divided into 2 groups, and the antenna ports in the same group are mapped to the same comb position, the antenna ports in the same group are mapped to different cyclic shift sequences, and the antenna ports of different groups are mapped to different comb position; or
- the 4 antenna ports of the SRS are distinguished by at least one of sequence cyclic shift and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and the FDM:
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by FDM, among which, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of FDM and sequence cyclic shift, where, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and the FDM:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the two antenna ports of the SRS are distinguished by at least one of sequence cyclic shift distinction and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the two antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM; or
- the two antenna ports of the SRS are distinguished by the cyclic shift of the sequence.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- Is the comb position mapped by the antenna port i Represents the comb offset value
- p i represents the serial number of antenna port i
- K TC is the comb size of the SRS, Indicates the number of antenna ports.
- Is the comb position mapped by the antenna port i Represents the comb offset value
- p i represents the serial number of antenna port i
- K TC is the comb size of the SRS, Indicates the number of antenna ports.
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value, Represents the number of antenna ports, Represents the maximum number of cyclic shifts, p i represents the serial number of antenna port i, Is the comb position mapped by the antenna port i, Indicates the offset value of the comb.
- the comb offset value when the antenna port i is mapped is the lowest resource unit RE position in one RB of an OFDM symbol where the SRS is configured when the number of antenna ports is configured to 1, where the antenna port i is Any antenna of the SRS; or
- the comb offset value is configured on the network side.
- the SRS is an SRS used for positioning.
- the number of antenna ports of the SRS is limited to 1 or 2.
- At least one of the comb size, the number of antenna ports, and the manner of determining the mapping is agreed upon by a protocol or indicated by the network.
- the terminal provided in the embodiment of the present disclosure can implement each process implemented by the terminal in the method embodiment of FIG. 2. To avoid repetition, details are not repeated here, and the coverage effect and audibility of the SRS can be improved.
- FIG. 4 is a schematic diagram of the hardware structure of a terminal that implements various embodiments of the present disclosure.
- the terminal 400 includes, but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and a power supply 411 and other components.
- a radio frequency unit 401 includes, but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and a power supply 411 and other components.
- terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown in the figure, or combine certain components, or arrange different components.
- terminals include but are not limited to mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, robots, wearable
- the processor 410 is configured to determine the antenna port mapping of the SRS according to the number of antenna ports of the SRS, where the SRS is an SRS with a comb size of N, the N is an even number greater than 4, and the number of antenna ports It is 1, 2 or 4.
- mapping of the antenna ports of the SRS includes at least one of the following:
- the cyclic shift of the sequence is determined according to at least one of a cyclic shift offset value, a maximum cyclic shift number, and an antenna port sequence number; and/or
- the position of the comb is determined according to at least one of FDM, comb offset value, maximum cyclic shift number, antenna port number, and comb size of the SRS.
- the 4 antenna ports of the SRS are divided into 2 groups, and the antenna ports in the same group are mapped to the same comb position, the antenna ports in the same group are mapped to different cyclic shift sequences, and the antenna ports of different groups are mapped to different comb position; or
- the 4 antenna ports of the SRS are distinguished by at least one of sequence cyclic shift and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and the FDM:
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by FDM, among which, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of FDM and sequence cyclic shift, where, Represents the cyclic shift offset value, Indicates the maximum number of cyclic shifts; or
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the 4 antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and the FDM:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the two antenna ports of the SRS are distinguished by at least one of sequence cyclic shift distinction and FDM.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- the two antenna ports of the SRS are distinguished by at least one of the cyclic shift of the sequence and FDM; or
- the two antenna ports of the SRS are distinguished by the cyclic shift of the sequence.
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value
- Represents the number of antenna ports Represents the maximum number of cyclic shifts
- p i represents the serial number of antenna port i
- Is the comb position mapped by the antenna port i Represents the comb offset value
- K TC is the comb size of the SRS.
- Is the comb position mapped by the antenna port i Represents the comb offset value
- p i represents the serial number of antenna port i
- K TC is the comb size of the SRS, Indicates the number of antenna ports.
- Is the comb position mapped by the antenna port i Represents the comb offset value
- p i represents the serial number of antenna port i
- K TC is the comb size of the SRS, Indicates the number of antenna ports.
- the comb position is calculated by the following formula:
- Is the cyclic shift of the sequence mapped to antenna port i Represents the cyclic shift offset value, Represents the number of antenna ports, Represents the maximum number of cyclic shifts, p i represents the serial number of antenna port i, Is the comb position mapped by the antenna port i, Indicates the offset value of the comb.
- the comb offset value when the antenna port i is mapped is the lowest resource unit RE position in one RB of an OFDM symbol where the SRS is configured when the number of antenna ports is configured to 1, where the antenna port i is Any antenna of the SRS; or
- the comb offset value is configured on the network side.
- the SRS is an SRS used for positioning.
- the number of antenna ports of the SRS is limited to 1 or 2.
- At least one of the comb size, the number of antenna ports, and the manner of determining the mapping is agreed upon by a protocol or indicated by the network.
- the above terminal can improve the coverage effect and audibility of the SRS.
- the radio frequency unit 401 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 410; in addition, Uplink data is sent to the base station.
- the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.
- the terminal provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.
- the audio output unit 403 can convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into audio signals and output them as sounds. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (for example, call signal reception sound, message reception sound, etc.).
- the audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
- the input unit 404 is used to receive audio or video signals.
- the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042.
- the graphics processor 4041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
- the processed image frame can be displayed on the display unit 406.
- the image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or sent via the radio frequency unit 401 or the network module 402.
- the microphone 4042 can receive sound and can process such sound into audio data.
- the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.
- the terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors.
- the light sensor includes an ambient light sensor and a proximity sensor.
- the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light.
- the proximity sensor can close the display panel 4061 and/or when the terminal 400 is moved to the ear. Or backlight.
- the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
- the display unit 406 is used to display information input by the user or information provided to the user.
- the display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
- LCD liquid crystal display
- OLED organic light-emitting diode
- the user input unit 407 can be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal.
- the user input unit 407 includes a touch panel 4071 and other input devices 4072.
- the touch panel 4071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operating).
- the touch panel 4071 may include two parts: a touch detection device and a touch controller.
- the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed.
- the touch panel 4071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
- the user input unit 407 may also include other input devices 4072.
- other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
- the touch panel 4071 can cover the display panel 4061.
- the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event.
- the type of event provides corresponding visual output on the display panel 4061.
- the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated. Realize the input and output functions of the terminal, which are not limited here.
- the interface unit 408 is an interface for connecting an external device with the terminal 400.
- the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (input/output, I/O) port, video I/O port, headphone port, etc.
- the interface unit 408 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 400 or may be used to communicate between the terminal 400 and the external device. Transfer data between.
- the memory 409 can be used to store software programs and various data.
- the memory 409 may mainly include a storage program area and a storage data area.
- the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
- the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
- the processor 410 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 409, and calling data stored in the memory 409. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
- the processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc.
- the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
- the terminal 400 may also include a power source 411 (such as a battery) for supplying power to various components.
- a power source 411 such as a battery
- the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
- the terminal 400 includes some functional modules not shown, which will not be repeated here.
- an embodiment of the present disclosure further provides a terminal, including a processor 410, a memory 409, and a computer program stored on the memory 409 and running on the processor 410.
- a terminal including a processor 410, a memory 409, and a computer program stored on the memory 409 and running on the processor 410.
- the computer program is executed by the processor 410,
- Each process of the foregoing embodiment of the method for determining antenna port mapping is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.
- the embodiment of the present disclosure also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the computer program is executed by a processor, the method for determining antenna port mapping provided by the embodiment of the present disclosure is realized, and the same In order to avoid repetition, I won’t repeat them here.
- the computer readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. ⁇
- the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) )
- a storage medium such as ROM/RAM, magnetic disk, optical disk
- a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
- the disclosed device and method may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the computer software product is stored in a storage medium and includes several instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in the various embodiments of the present disclosure.
- the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
- the program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments.
- the storage medium may be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.
- modules, units, and sub-units can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSP Device, DSPD) ), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to implement Described functions in other electronic units or combinations thereof.
- ASIC Application Specific Integrated Circuits
- DSP Digital Signal Processor
- DSP Device Digital Signal Processing Device
- DSPD Digital Signal Processing Device
- PLD Programmable Logic Device
- FPGA Field-Programmable Gate Array
- the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
- the software codes can be stored in the memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
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Abstract
本公开实施例提供一种确定天线端口映射方法和终端，该方法包括：依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
Description
相关申请的交叉引用
本申请主张在2019年8月15日在中国提交的中国专利申请号No.201910755726.9的优先权，其全部内容通过引用包含于此。
本公开涉及通信技术领域，尤其涉及一种确定天线端口映射方法和终端。
在通信***中探测参考信号(Sounding Reference Signal，SRS)可以用于波束管理(Beam management)、基于码本(Codebook)的传输、基于非码本(non-Codebook)的传输、天线切换(Antenna Switching)发送或者定位等。然而，相关技术中的通信***中只能支持梳状(comb)大小为2(简称comb-2)和comb大小为4(简称comb-4)的SRS传输，这样，导致SRS的覆盖效果和可听性比较差。
发明内容
本公开实施例提供一种确定天线端口映射方法和终端，以解决SRS的覆盖效果和可听性比较差的问题。
第一方面，本公开实施例提供一种确定天线端口映射方法，应用于终端，包括：
依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状(comb)大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
第二方面，本公开实施例提供一种终端，包括：
确定模块，用于依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
第三方面，本公开实施例提供一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现本公开实施例提供的确定天线端口映射方法中的步骤。
第四方面，本公开实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现本公开实施例提供的确定天线端口映射方法中的步骤。
本公开实施例中，依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。这样可以实现comb大小大于4的SRS的天线端口映射，从而支持comb大小大于4的SRS传输，使得SRS更加稀疏，进而提高SRS的覆盖效果和可听性。
图1是本公开实施例可应用的一种网络***的结构图；
图2是本公开实施例提供的一种确定天线端口映射方法的流程图；
图3是本公开实施例提供的一种终端的结构图；
图4是本公开实施例提供的另一种终端的结构图。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更可选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
下面结合附图介绍本公开的实施例。本公开实施例提供的确定天线端口映射方法和终端可以应用于无线通信***中。该无线通信***可以为新空口(New Radio，NR)***，或者演进型长期演进(Evolved Long Term Evolution，eLTE)***，或者长期演进(Long Term Evolution，LTE)***，或者后续演进通信***等。
请参见图1，图1是本公开实施例可应用的一种网络***的结构图，如图1所示，包括终端11和网络设备12，其中，终端11可以是用户终端(User Equipment，UE)或者其他终端侧设备，例如：手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或者机器人等终端侧设备，需要说明的是，在本公开实施例中并不限定终端11的具体类型。上述网络设备12可以是***(4
th generation，4G)基站，或者第五代(5
th generation，5G)基站，或者以后版本的基站，或者其他通信***中的基站，或者称之为节点B，演进节点B，或者传输接收点(Transmission Reception Point，TRP)，或者接入点(Access Point，AP)，或者所述领域中其他词汇，只要达到相同的技术效果，所述网络设备不限于特定技术词汇。另外，上述网络设备12可以是主节点(Master Node，MN)，或者辅节点(Secondary Node，SN)。需要说明的是，在本公开实施例中仅以5G基站为例，但是并不限定网络设备的具体类型。
请参见图2，图2是本公开实施例提供的一种确定天线端口映射方法的流程图，该方法应用于终端，如图2所示，包括以下步骤：
步骤201、依据SRS的天线端口数，确定所述SRS的天线端口的映射(参数)，其中，所述SRS为comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
其中，上述comb大小为N的SRS可以是，comb大小为6、8、12或者 其他大于4的偶数的SRS。而上述天线端口数与上述comb大小可以是对应的，例如：在上述comb大小为6、8或者12时，上述天线端口数可以是为1、2或者4。
而上述依据SRS的天线端口数，确定所述SRS的天线端口的映射可以是，按照天线端口的映射集合与天线端口数集合的关系，确定所述SRS的天线端口的映射，具体可以是，确定SRS的每个天线端口的映射，并通过上述SRS的天线端口传输上述SRS。
需要说明的是，本公开实施例中，天线端口的映射也可以理解为，天线端口的映射参数(或者称作映射信息)，例如：SRS的天线端口映射的位置、SRS的天线端口映射的序列的循环移位等与天线端口映射相关的参数(或者信息)。
本公开实施例中，通过上述步骤可以实现comb大小大于4的SRS的天线端口映射，从而支持comb大小大于4的SRS传输，使得SRS更加稀疏，使得SRS的覆盖效果更佳，且由于SRS更加稀疏，这样更加容易被监听到，从而提高SRS的可听性。
作为一种可选的实施方式，上述SRS的天线端口的映射(参数)包括如下至少一项：
所述SRS的天线端口映射的序列的循环移位(cyclic shift)；
所述SRS的天线端口映射的comb位置。
其中，comb位置可以是资源单元(Resource Element，RE)位置，例如：某个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号上，在SRS所在的第一个资源块(Resource Block，RB)或某RB中的RE的起始位置。RE起始位置为小于comb大小的自然数，比如comb-6，RE起始位置为0,1,2…5；comb-8，RE起始位置为0,1,2,3…7；comb-12，RE起始位置为0,1,2,3…11。另外，当映射到不同的comb位置时，可以是指映射到在某个OFDM符号上，映射到一个RB中不同的RE起始位置，在某个OFDM符号映射到不同的comb位置，即映射到频分复用FDM的RE上。
其中，上述SRS的天线端口映射的序列的循环移位可以是，SRS的每个天线端口的序列的循环移位，且不同天线端口映射的序列的循环移位可以不 同，或者部分天线端口映射的序列的循环移位相同等，对此不作限定。
另外，上述SRS的天线端口映射的comb位置可以是，SRS的每个天线端口映射的comb位置，且不同天线端口映射的comb位置可以不同，或者部分天线端口映射的comb位置相同等，对此不作限定。
该实施方式中，由于可以确定SRS的天线端口映射的序列的循环移位和映射的comb位置，从而使得SRS的映射更加准确，避免映射错误。
可选的，所述序列的循环移位是依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项确定。
其中，上述依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项确定可以是，依据包括循环移位偏移值、最大循环移位数和天线端口序号中的至少一项的公式确定各天线端口的序列的循环移位。当然，对此不作限定，例如：也可以预先配置好循环移位偏移值、最大循环移位数和天线端口序号中的至少一项与循环移位的映射关系，从而通过该映射关系确定各天线端口的序列的循环移位。
该实施方式中，依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项可以准确地确定各天线端口的序列的循环移位。
可选的，所述comb位置是依据是否频分复用(Frequency Division Multiplexing，FDM)、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项确定。
其中，上述依据是否FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项确定可以是，依据包括最大循环移位数、天线端口序号和所述SRS的comb大小中至少一项的公式，确定各天线端口映射的comb位置，也可以结合各天线端口是否FDM。当然，对此不作限定，例如：也可以预先配置好是否FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项与comb位置的映射关系，从而通过该映射关系确定各天线端口映射的comb位置。
该实施方式中，依据是否FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项可以准确地确定各天线端口的序列的循环移位。
需要说明的是，上述循环移位偏移值、是否FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项可以是由协议约定或网络指示。例如：网络侧通过RRC信令配置的上述循环移位偏移值、是否FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项。
下面分别以多个实施方式对确定循环移位和comb位置进行详细说明：
在一个实施方式中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的4个天线端口划分为2组，且同一组内的天线端口映射的comb位置相同，同一组内的天线端口映射到循环移位不同的序列，不同组的天线端口映射到不同的comb位置。
其中，上述FDM的方式与所述循环移位偏移值无关的情况下可以是，循环移位偏移值与FDM的方式没有关系，二者是独立的。例如：4个天线端口的映射与序列的循环移位有关，且与FDM有关，但FDM的方式与循环移位偏移值
无关，也就是说，这4个天线端口可以通过序列的循环移位区分，也同时通过FDM区分，且FDM时不考虑的
影响。
上述实施方式中，另外，上述4个天线端口划分为2组可以是每组2个天线端口。
由于SRS的4个天线端口划分为2组，且同一组内的天线端口映射的comb位置相同，同一组内的天线端口映射到循环移位不同的序列，不同组的天线端口映射到不同的comb位置，这样可以实现1个天线端口组内的天线端口映射到相同的comb位置，通过不同的cyclic shift区分，组之间通过不同的comb位置区分，以节约comb位置。
例如：在所述SRS的4个天线端口划分为2组的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
其中，上面公式中，if p
i∈{1000,1001}(or p
i∈{1002,1003})还可以表示为：
或者
通过上述公式可以实现在天线端口数为4，且comb大小为大于4的偶数的情况下，可为4个天线端口均匀地分配序列的循环移位，从而提高SRS的传输性能。
需要说明的是，本公开实施例中，计算公式是以天线端口序列为1000+i进行举例说明的，且i为大于或者等于0的整数。但本公开实施例中，并不限定以是天线端口序列为1000+i，也可以是i+其他数值或者不加，在这些情况下，一样可以采用本公开实施例提供的公式，只是需要替换天线端口序列的取值，即替换公式中的1000，或者1000+i得到的值。
在一个实施方式中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分。
其中，上述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分可以是，4个天线端口可以通过序列的循环移位，也同时可以通过FDM区分，例如：不同天线端口映射的序列的循环移位不同，或者不同天线端口 (或天线端口组)映射的comb位置不同等，或者不同天线端口映射的序列的循环移位不同的同时，不同天线端口(或天线端口组)映射的comb位置也不同。
该实施方式中，由于4个天线端口通过序列的循环移位和FDM中至少一项区分，从而可以提高天线端口映射的灵活性。
例如：在所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
或者，
或者，
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
通过上述公式可以实现在天线端口数为4，且comb大小为大于4的偶数的情况下，可为4个天线端口分配相应的序列的循环移位和comb位置，从而提高SRS的传输性能。
在一个实施方式中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值有关的情况下：
若
则所述SRS的4个天线端口通过FDM区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
若
则所述SRS的4个天线端口通过FDM和序列的循环移位中至少一项区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分。
上述FDM的方式与所述循环移位偏移值有关可以是，在进行FDM时需要考虑循环移位偏移值的影响。需要说明的是，本公开实施例中，并不限定考虑循环移位偏移值的影响如何进行FDM，具体可以是根据实际场景需求进行配置。例如：4个天线端口的映射与序列的循环移位和FDM有关，且FDM方式与循环移位偏移值
有关，也就是说，4个天线端口可以通过序列的循环移位区分，也同时通过FDM区分，且FDM时要考虑的循环移位偏移值影响。
上述若
则所述SRS的4个天线端口通过FDM区分可以是，当
时，天线端口的映射只通过FDM区分，不配置序列的循环移位(即天线端口的映射不通过序列的循环移位区分)。
例如：在
的情况下：
或者，
或者，
其中，
为天线端口i映射的comb位置，
表示所述天线端口数，p
i表示天线端口i的序号，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
而上述若
则所述SRS的4个天线端口通过FDM 和序列的循环移位中至少一项区分可以是，当
时，天线端口的映射通过循环移位与FDM区分。
例如：在
的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
通过上述公式可以实现在天线端口数为4，且comb大小为大于4的偶数的情况下，可为4个天线端口相应地分配序列的循环移位以及comb位置，从而提高SRS的传输性能。
而上述在所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
通过上述公式可以实现在天线端口数为4，且comb大小为大于4的偶数的情况下，可为4个天线端口相应地分配序列的循环移位和comb位置，从而提高SRS的传输性能。
在一个实施方式中，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分。
其中，上述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分可以是，天线端口的映射方式与FDM及序列的循环移位均有关，其中，FDM方式与循环移位偏移值
无关，也就是说，2个天线端口不仅通过FDM区分，而且通过序列的循环移位区分。
例如：
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
通过上述公式可以实现在天线端口数为2，且comb大小为大于4的偶数的情况下，可为2个天线端口相应地分配序列的循环移位以及comb位置，从而提高SRS的传输性能。
在一个实施方式中，在所述天线端口数为2，且FDM的方式与所述循环 移位偏移值有关的情况下：
若
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分；或者
若
所述SRS的2个天线端口通过序列的循环移位区分。
该实施方式中，可以是天线端口的映射与序列的循环移位和FDM均有关，且FDM方式与循环移位偏移值
有关。如当
2个天线端口可以通过FDM与序列的循环移位区分；当
2个天线端口可以只通过序列的循环移位区分。
例如：
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
通过上述公式可以实现在天线端口数为2，且comb大小为大于4的偶数的情况下，可为2个天线端口相应地分配序列的循环移位以及comb位置，从而提高SRS的传输性能。
在一个实施方式中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
或者，
或者，
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
其中，上述FDM的方式与所述循环移位偏移值无关可以是，4个天线端口与FDM有关，与序列的循环移位无关，且FDM方式与循环移位偏移值
无关，也就是说，可以只通过FDM区分，可以不配置序列的循环移位，且FDM方式不受
影响。
在一个实施方式中，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
其中，上述所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关可以是，2个天线端口与FDM有关，与序列的循环移位无关，且FDM方式与循环移位偏移值
无关，也就是说，可以只通过FDM区分，可以不配置序列的循环移位，且FDM方式不受
影响。
在一个实施方式中，在所述天线端口数为4的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
在所述天线端口数为2的情况下：
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值。
该实施方式中，可以是天线端口只与序列的循环移位有关，与FDM无关，即可以只通过序列的循环移位区分。
作为一种可选的实施方式，天线端口i映射时的comb偏移值为所述天线端口数配置为1时的SRS所在的一个OFDM符号的一个RB中最低的RE位置，其中，所述天线端口i为所述SRS的任一天线；或者
所述comb偏移值为网络侧配置，例如可以由RRC信令中transmissionComb字段中的combOffset指示，当然，对此不作限定，例如：可以通过RRC信令中的其他字段来指示。
其中，上述一个OFDM符号可以是天线端口数配置为1时的SRS所在的任意符号，或者一个特定的OFDM，具体可以称作某个OFDM符号，而上述一个RB可以是起始RB，或者其余某个RB。
上述最低的RE位置也可以称为最低的RE偏移。
作为一种可选的实施方式，所述SRS为用于定位的SRS。
这样可以由于该SRS的覆盖效果和可听性比较好，从而使得定位的效果更佳。
进一步的，所述SRS的天线端口数可以被限制为1或2。可选的，可以由协议约定或网络指示。
进一步的，当comb大小为8时，最大循环移位(cyclic shift)数可以为6、3或2；当comb大小为6时，最大循环移位数可以为8、4或2；当comb大小为12时，最大循环移位数可以为4或2。可选的，最大循环移位数可以由协议约定或网络指示。
进一步的，所述SRS还可以被称为SRS资源。
由于在SRS为用于定位的SRS的情况下，SRS的天线端口数可以被限制为1或2，这样序列的循环移位(cyclic shift)更好分配，且天线端口映射的comb位置也更好分配，天线端口之间的正交性更好，从而提高SRS的传输性能。
需要说明的是，上述SRS的天线端口数可以被限制为1或2可以是，由协议约定或网络指示，且该实施方式中，优先地应用于comb大小为8(comb-8)的结构，当然，对此不作限定，例如：也可以应用于comb大小为6(comb-6)和comb大小为12(comb-12)等结构。
另外，上述实施方式中，在确定天线端口的映射的方式可以采用本公开提供的确定方式确定天线端口的映射，当然，也可以复用协议的已定义的确定comb大小为2或者4的确定方式，或者可以采用后续协议版本新定义的确定映射的方式。
作为一种可选的实施方式，所述comb大小、所述天线端口数和确定所述映射的方式中的至少一项由协议约定或网络指示。
例如：上述至少一项可以通过无线资源控制(Radio resource control，RRC)信令、媒体接入控制控制单元(Medium access control control element，MAC CE)和下行控制信息(Downlink Control Information，DCI)信令至少之一指示，如多个信令指示上述至少一项，或者由某一个信令来指示上述至少一项等。
其中，上述确定所述映射的方式可以是本公开实施例提供的各种确定序列的循环移位和comb位置的方式。
本公开实施例中，依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。这样可以实现comb大小大于4的SRS的天线端口映射，从而支持comb大小大于4的SRS传输，使得SRS更加稀疏，进而提高SRS的覆盖效果和可听性。
请参见图3，图3是本公开实施例提供的一种终端的结构图，如图3所示，终端300包括：
确定模块301，用于依据SRS的天线端口数，确定所述SRS的天线端口 的映射，其中，所述SRS为comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
可选的，所述SRS的天线端口的映射包括如下至少一项：
所述SRS的天线端口映射的序列的循环移位；
所述SRS的天线端口映射的comb位置。
可选的，所述序列的循环移位是依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项确定；和/或
所述comb位置是依据是否频分复用FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项确定。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的4个天线端口划分为2组，且同一组内的天线端口映射的comb位置相同，同一组内的天线端口映射到循环移位不同的序列，不同组的天线端口映射到不同的comb位置；或者
所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分。
可选的，在所述SRS的4个天线端口划分为2组的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb 偏移值，K
TC为所述SRS的comb大小。
可选的，在所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
或者，
或者，
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值有关的情况下：
若
则所述SRS的4个天线端口通过FDM区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
若
则所述SRS的4个天线端口通过FDM和序列的循环移位中至少一项区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项 区分。
可选的，在
的情况下：
或者，
或者，
在
的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分。
可选的，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值有关的情况下：
若
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分；或者
若
所述SRS的2个天线端口通过序列的循环移位区分。
可选的，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
或者，
或者，
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
可选的，在所述天线端口数为4的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
在所述天线端口数为2的情况下：
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值。
可选的，天线端口i映射时的comb偏移值为所述天线端口数配置为1时的SRS所在的一个OFDM符号的一个RB中最低的资源单元RE位置，其中，所述天线端口i为所述SRS的任一天线；或者
所述comb偏移值为网络侧配置。
可选的，所述SRS为用于定位的SRS。
可选的，所述SRS的天线端口数被限制为1或2。
可选的，所述comb大小、所述天线端口数和确定所述映射的方式中的至少一项由协议约定或网络指示。
本公开实施例提供的终端能够实现图2的方法实施例中终端实现的各个过程，为避免重复，这里不再赘述，且可以提高SRS的覆盖效果和可听性。
图4为实现本公开各个实施例的一种终端的硬件结构示意图，
该终端400包括但不限于：射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、处理器410、以及电源411等部件。本领域技术人员可以理解，图4中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载 终端、机器人、可穿戴设备、以及计步器等。
处理器410，用于依据SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
可选的，所述SRS的天线端口的映射包括如下至少一项：
所述SRS的天线端口映射的序列的循环移位；
所述SRS的天线端口映射的comb位置。
可选的，所述序列的循环移位是依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项确定；和/或
所述comb位置是依据是否频分复用FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项确定。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的4个天线端口划分为2组，且同一组内的天线端口映射的comb位置相同，同一组内的天线端口映射到循环移位不同的序列，不同组的天线端口映射到不同的comb位置；或者
所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分。
可选的，在所述SRS的4个天线端口划分为2组的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位 偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
或者，
或者，
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值有关的情况下：
若
则所述SRS的4个天线端口通过FDM区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
若
则所述SRS的4个天线端口通过FDM和序 列的循环移位中至少一项区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分。
可选的，在
的情况下：
或者，
或者，
在
的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分的情况下：
或者，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分。
可选的，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值有关的情况下：
若
所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分；或者
若
所述SRS的2个天线端口通过序列的循环移位区分。
可选的，
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K
TC为所述SRS的comb大小。
可选的，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
或者，
或者，
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
可选的，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
其中，
为天线端口i映射的comb位置，
表示所述comb偏移值，p
i表示天线端口i的序号，K
TC为所述SRS的comb大小，
表示所述天线端口数。
可选的，在所述天线端口数为4的情况下：
所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
在所述天线端口数为2的情况下：
其中，
为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p
i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值。
可选的，天线端口i映射时的comb偏移值为所述天线端口数配置为1时的SRS所在的一个OFDM符号的一个RB中最低的资源单元RE位置，其中，所述天线端口i为所述SRS的任一天线；或者
所述comb偏移值为网络侧配置。
可选的，所述SRS为用于定位的SRS。
可选的，所述SRS的天线端口数被限制为1或2。
可选的，所述comb大小、所述天线端口数和确定所述映射的方式中的至少一项由协议约定或网络指示。
上述终端可以提高SRS的覆盖效果和可听性。
应理解的是，本公开实施例中，射频单元401可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器410处理；另外，将上行的数据发送给基站。通常，射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元401还可以通过无线通信***与网络和其他设备通信。
终端通过网络模块402为用户提供了无线的宽带互联网访问，如帮助用 户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元403可以将射频单元401或网络模块402接收的或者在存储器409中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元403还可以提供与终端400执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元403包括扬声器、蜂鸣器以及受话器等。
输入单元404用于接收音频或视频信号。输入单元404可以包括图形处理器(Graphics Processing Unit，GPU)4041和麦克风4042，图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元406上。经图形处理器4041处理后的图像帧可以存储在存储器409(或其它存储介质)中或者经由射频单元401或网络模块402进行发送。麦克风4042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元401发送到移动通信基站的格式输出。
终端400还包括至少一种传感器405，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板4061的亮度，接近传感器可在终端400移动到耳边时，关闭显示面板4061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器405还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元406用于显示由用户输入的信息或提供给用户的信息。显示单元406可包括显示面板4061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板4061。
用户输入单元407可用于接收输入的数字或字符信息，以及产生与终端 的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板4071上或在触控面板4071附近的操作)。触控面板4071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器410，接收处理器410发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板4071。除了触控面板4071，用户输入单元407还可以包括其他输入设备4072。具体地，其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板4071可覆盖在显示面板4061上，当触控面板4071检测到在其上或附近的触摸操作后，传送给处理器410以确定触摸事件的类型，随后处理器410根据触摸事件的类型在显示面板4061上提供相应的视觉输出。虽然在图4中，触控面板4071与显示面板4061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板4071与显示面板4061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元408为外部装置与终端400连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(input/output，I/O)端口、视频I/O端口、耳机端口等等。接口单元408可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端400内的一个或多个元件或者可以用于在终端400和外部装置之间传输数据。
存储器409可用于存储软件程序以及各种数据。存储器409可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存 储器409可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器409内的软件程序和/或模块，以及调用存储在存储器409内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器410可包括一个或多个处理单元；可选的，处理器410可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作***、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器410中。
终端400还可以包括给各个部件供电的电源411(比如电池)，可选的，电源411可以通过电源管理***与处理器410逻辑相连，从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。
另外，终端400包括一些未示出的功能模块，在此不再赘述。
可选的，本公开实施例还提供一种终端，包括处理器410，存储器409，存储在存储器409上并可在所述处理器410上运行的计算机程序，该计算机程序被处理器410执行时实现上述确定天线端口映射方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的确定天线端口映射方法，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来控制相关的硬件来完成，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储器(Read-Only Memory，ROM)或随机存取存储器(Random Access Memory，RAM)等。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processor，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。
Claims (23)
- 一种确定天线端口映射方法，应用于终端，包括：依据探测参考信号SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
- 如权利要求1所述的方法，其中，所述SRS的天线端口的映射包括如下至少一项：所述SRS的天线端口映射的序列的循环移位；所述SRS的天线端口映射的comb位置。
- 如权利要求2所述的方法，其中，所述序列的循环移位是依据循环移位偏移值、最大循环移位数和天线端口序号中的至少一项确定；和/或所述comb位置是依据是否频分复用FDM、comb偏移值、最大循环移位数、天线端口序号和所述SRS的comb大小中的至少一项确定。
- 如权利要求3所述的方法，其中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：所述SRS的4个天线端口划分为2组，且同一组内的天线端口映射的comb位置相同，同一组内的天线端口映射到循环移位不同的序列，不同组的天线端口映射到不同的comb位置；或者所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分。
- 如权利要求4所述的方法，其中，在所述SRS的4个天线端口划分为2组的情况下：
或者，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求4所述的方法，其中，在所述SRS的4个天线端口通过序列的循环移位和FDM中至少一项区分的情况下：所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
或者，
或者，
或者，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求3所述的方法，其中，在所述天线端口数为4，且FDM的 方式与所述循环移位偏移值有关的情况下：若则所述SRS的4个天线端口通过FDM区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
若则所述SRS的4个天线端口通过FDM和序列的循环移位中至少一项区分，其中，
表示所述循环移位偏移值，
表示最大循环移位数；或者
所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分。 - 如权利要求7所述的方法，其中，在的情况下：
或者，
或者，
在的情况下：
或者，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求7所述的方法，其中，在所述SRS的4个天线端口通过序列的循环移位区分和FDM中至少一项区分的情况下：
或者，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求3所述的方法，其中，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分。
- 如权利要求10所述的方法，其中，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求3所述的方法，其中，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值有关的情况下：若所述SRS的2个天线端口通过序列的循环移位区分和FDM中至少一项区分；或者
若所述SRS的2个天线端口通过序列的循环移位区分。
- 如权利要求12所述的方法，其中，
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，pi表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值，K TC为所述SRS的comb大小。
- 如权利要求3所述的方法，其中，在所述天线端口数为4，且FDM的方式与所述循环移位偏移值无关的情况下：
或者，
或者，
其中，为天线端口i映射的comb位置，
表示所述comb偏移值，p i表示天线端口i的序号，K TC为所述SRS的comb大小，
表示所述天线端口数。
- 如权利要求3所述的方法，其中，在所述天线端口数为2，且FDM的方式与所述循环移位偏移值无关的情况下：
其中，为天线端口i映射的comb位置，
表示所述comb偏移值， p i表示天线端口i的序号，K TC为所述SRS的comb大小，
表示所述天线端口数。
- 如权利要求3所述的方法，其中，在所述天线端口数为4的情况下：所述序列的循环移位通过如下公式计算：
或者，
所述comb位置通过如下公式计算：
在所述天线端口数为2的情况下：
其中，为天线端口i映射的序列的循环移位，
表示所述循环移位偏移值，
表示所述天线端口数，
表示所述最大循环移位数，p i表示天线端口i的序号，
为天线端口i映射的comb位置，
表示所述comb偏移值。
- 如权利要求3所述的方法，其中，天线端口i映射时的comb偏移值为所述天线端口数配置为1时的SRS所在的一个OFDM符号的一个RB中最低的资源单元RE位置，其中，所述天线端口i为所述SRS的任一天线；或者所述comb偏移值为网络侧配置。
- 如权利要求1至17中任一项所述的方法，其中，所述SRS为用于定位的SRS。
- 如权利要求18所述的方法，其中，所述SRS的天线端口数被限制为1或2。
- 如权利要求1至17中任一项所述的方法，其中，所述comb大小、所述天线端口数和确定所述映射的方式中的至少一项由协议约定或网络指示。
- 一种终端，包括：确定模块，用于依据探测参考信号SRS的天线端口数，确定所述SRS的天线端口的映射，其中，所述SRS为梳状comb大小为N的SRS，所述N为大于4的偶数，所述天线端口数为1、2或4。
- 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至20中任一项所述的确定天线端口映射方法中的步骤。
- 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至20中任一项所述的确定天线端口映射方法中的步骤。
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| CN115706629A (zh) * | 2021-08-03 | 2023-02-17 | 华为技术有限公司 | 一种通信方法及装置 |
| WO2023010416A1 (en) * | 2021-08-05 | 2023-02-09 | Qualcomm Incorporated | Sounding reference signal multiplexing for non-terrestrial networks |
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| CN111835488A (zh) | 2020-10-27 |
| CN111835488B (zh) | 2022-12-23 |
| US20220166583A1 (en) | 2022-05-26 |
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