CN117498996A

CN117498996A - Method, device, chip and module equipment for transmitting sounding reference signal sequence

Info

Publication number: CN117498996A
Application number: CN202210880342.1A
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2024-02-02

Abstract

The application discloses a SRS sequence transmission method, a device, a chip and a module device, wherein the method comprises the following steps: transmitting the SRS sequence through one or more antenna ports; ith antenna port p _i Cyclic shift alpha employed by transmitted SRS _i Based on the first parameter determination, the first parameter includes one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the number of SRS resource transmission times, the time slot index number of the time slot in which the SRS resource is located or the frame index number of the wireless frame in which the SRS resource is located; alternatively, p _i Corresponding SRS comb tooth positionsDetermining based on the first parameter; or, the grouping mode of the plurality of antenna ports is determined based on a random number sequence, or the grouping mode of the plurality of antenna ports is changed every a preset number of time units, or the grouping mode of the plurality of antenna ports is changed every a preset number of SRS sequence transmission times. Based on the method, the method is beneficial to reducing different usersInterference between SRS resources of a device.

Description

Method, device, chip and module equipment for transmitting sounding reference signal sequence

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, a chip, and a module device for transmitting a sounding reference signal sequence.

Background

In a time division duplex (time division duplex ) scenario, a network device may measure a sounding reference signal (sounding reference signal, SRS) transmitted by a User Equipment (UE), obtain uplink channel information, and infer channel state information (channel state information, CSI) of a downlink channel based on reciprocity of the uplink channel information and the uplink and downlink channels. Coherent joint transmission (coherent joint transmiision, CJT) was introduced at R18, which can support up to 4 network devices simultaneously for downlink transmission for UEs. With the introduction of cqt, more transmission reception points (transmission reception point, TRP) need to estimate the downlink channel between them and UE through SRS, so the SRS resource requirement increases greatly. This introduces more interference between SRS resources. Interference between SRS resources directly affects the estimation of the downlink channel CSI by the network device. Therefore, how to reduce interference between SRS resources of different user equipments is a problem to be solved at present.

Disclosure of Invention

The application provides a sounding reference signal sequence transmission method, a sounding reference signal sequence transmission device, a chip and module equipment, which are beneficial to reducing interference among SRS resources of different user equipment.

In a first aspect, the present application provides a method for transmitting an SRS sequence, the method including:

transmitting an SRS sequence through one or more antenna ports of the user equipment;

wherein, the cyclic shift alpha adopted by SRS transmitted by the ith antenna port of the user equipment _i Based on the first parameter determination, the first parameter includes one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the number of SRS resource transmission times, the time slot index number of the time slot in which the SRS resource is located or the frame index number of the wireless frame in which the SRS resource is located; or,

the frequency domain initial position of SRS sequence transmitted by the ith antenna port is based on comb tooth positionDetermining comb tooth position->Based on the first parameter determination, p _i A port number for the i-th antenna port; or,

the plurality of antenna ports are divided into a plurality of antenna port groups, each antenna port group comprises a plurality of antenna ports, SRS sequences sent by the antenna ports in the same antenna port group occupy the same frequency domain resource, and the grouping mode of the plurality of antenna ports is determined based on a random number sequence, or the grouping mode of the plurality of antenna ports is changed every a preset number of time units, or the grouping mode of the plurality of antenna ports is changed every a preset SRS sequence transmission times.

By implementing the method described in the first aspect, SRS cyclic shift randomization or SRS comb tooth position randomization or SRS antenna port randomization can be performed, which is beneficial to reducing interference between SRS resources of different user equipments.

In one possible implementation, if not satisfiedAnd->Alpha is then _i Determining based on the first parameter;

wherein,for the number of antenna ports transmitting SRS sequences, +.>Is the maximum number of cyclic shifts of the SRS.

In one possible implementation of the present invention,

if it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if Comb tooth position +.>Determining based on the first parameter;

wherein,for the number of antenna ports transmitting SRS sequences, +.>As the maximum number of cyclic shifts of the SRS,is the offset of the cyclic shift.

In one possible implementation, if Then->Or (F)>

Wherein X is related to a first parameter, K _TC As the number of comb teeth of the SRS,is the comb offset of the SRS.

In one possible implementation, if not satisfiedDo not satisfy->Comb tooth positionDetermining based on the first parameter;

wherein,for the number of antenna ports transmitting SRS sequences, +.>As the maximum number of cyclic shifts of the SRS, Is the offset of the cyclic shift.

In one possible implementation, if not satisfiedDo not satisfy->Then Or (F)>

In one possible implementation, the identity of the cell in which the user equipment is located is a physical cell identity PCI and/or the identity of the user equipment is a cell radio network temporary identity C-RNTI.

In a second aspect, the present application provides a method for transmitting an SRS sequence, the method including:

receiving SRS sequences sent by one or more antenna ports of user equipment;

In one possible implementation of the present invention,

if it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if Then->Or (F)>

In one possible implementation, if not satisfiedDo not satisfy->Then Or (F)>

In a third aspect, the present application provides an SRS sequence transmission apparatus, which includes a unit for performing the method described in the first aspect or the second aspect.

In a fourth aspect, the present application provides a chip comprising a processor and a communication interface, the processor being configured to cause the chip to perform the method of the first or second aspect described above.

In a fifth aspect, the present application provides a module apparatus, the module apparatus comprising a communication module, a power module, a storage module, and a chip, wherein: the power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the module equipment or carrying out communication between the module equipment and external equipment; the chip is configured to perform the method of the first or second aspect.

In a sixth aspect, an embodiment of the present invention discloses an SRS sequence transmission apparatus, where the SRS sequence transmission apparatus includes a memory and a processor, where the memory is configured to store a computer program, and the computer program includes program instructions, and the processor is configured to call the program instructions to perform the method according to the first aspect or the second aspect.

In a seventh aspect, the present application provides a computer readable storage medium having stored therein computer readable instructions which, when run on a communication device, cause the communication device to perform the method of the first or second aspect described above.

In an eighth aspect, the present application provides a computer program or computer program product comprising code or instructions which, when run on a computer, cause the computer to perform the method as described in the first or second aspect above.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a communication system provided in an embodiment of the present application;

fig. 2 is a flow chart of an SRS sequence transmission method according to the embodiment of the present application;

fig. 3 is a schematic structural diagram of an SRS sequence transmission apparatus according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of an SRS sequence transmission apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a module device according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this application refers to and encompasses any or all possible combinations of one or more of the listed items.

It should be noted that, in the description and claims of the present application and in the above figures, the terms "first," "second," "third," etc. are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

For a better understanding of the embodiments of the present application, the following first describes a system architecture related to the embodiments of the present application:

the technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or new radio, NR) future communication systems, and the like.

Referring to fig. 1, fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes a user equipment and a network equipment. The number of user devices and the number of network devices are merely exemplary, and the number of user devices and the number of network devices in the embodiments of the present application are not specifically limited. Alternatively, if a plurality of network devices are included in the communication system, the plurality of network devices may cooperate to serve the terminal devices. The plurality of network devices may serve the user equipment in a CJT manner. In the cqt collaboration mode, a plurality of network devices serve terminal devices at the same time, the transmission is transparent to the terminal devices, and from the point of view of the terminal devices, the plurality of network devices in the collaboration set can be equivalently regarded as a large base station. Alternatively, the multiple network devices may use other collaboration manners to serve the terminal device, which is not limited in the embodiments of the present application. Alternatively, the plurality of network devices may serve the terminal device without adopting a cooperative manner.

The user equipment and the network equipment referred to in fig. 1 are described in detail below, respectively.

1. User equipment

User equipment includes devices that provide voice and/or data connectivity to a user, e.g., the user equipment is a device with wireless transceiver capabilities that can be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The user device may be a mobile phone, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) user device, an Augmented Reality (AR) user device, a wireless terminal in an industrial control (industrial control), an in-vehicle user device, a wireless terminal in a self driving (self driving), a wireless terminal in a telemedicine (remote media), a wireless terminal in a smart grid (smart grid), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city (smart home), a wireless terminal in a smart home (smart home), a wearable user device, or the like. The embodiments of the present application are not limited to application scenarios. A user equipment may also sometimes be referred to as a terminal, user Equipment (UE), access user equipment, vehicle mounted terminal, industrial control terminal, UE unit, UE station, mobile station, remote user equipment, mobile device, UE user equipment, wireless communication device, UE agent, UE device, or the like. The user equipment may also be fixed or mobile.

2. Network equipment

The network device in the embodiments of the present application refers to a radio access network (radio access network, RAN) node (or device) that accesses a user equipment to a wireless network, which may also be referred to as a base station. The radio access network device may also be referred to as: a further evolved Node B (gNB), a transmission and reception point (transmission reception point, TRP), an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a wireless fidelity (wireless fidelity, wifi) Access Point (AP), etc.

In addition, in a network structure, the network device may be a module or a unit that performs a function of the base station part, for example, may be a Central Unit (CU) or may be a Distributed Unit (DU). The CU can complete the functions of a radio resource control protocol and a packet data convergence layer protocol (packet data convergence protocol, PDCP) of the base station and can also complete the functions of a service data adaptation protocol (service data adaptation protocol, SDAP); the DU performs the functions of a radio link control layer and a medium access control (medium access control, MAC) layer of the base station, and may also perform the functions of a part of or all of the physical layers. For a detailed description of the various protocol layers described above, reference may be made to the relevant technical specifications of the third generation partnership project (3rd generation partnership project,3GPP). The network device may be a macro base station, a micro base station, an indoor station, a relay node, a donor node, or the like. In this embodiment of the present application, the means for implementing the function of the network device may be the network device itself, or may be a means capable of supporting the network device to implement the function, for example, a system on a chip or a combination device or a component capable of implementing the function of the network device, where the means may be installed in the network device. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

Referring to fig. 2, fig. 2 is a flowchart of an SRS sequence transmission method according to an embodiment of the present application, where the SRS sequence transmission method includes step 201. The method execution body shown in fig. 2 may be a user equipment and a network device, or the body may be a chip in the user equipment and a chip in the network device. Alternatively, the method execution body shown in fig. 2 may be another type of product, and those skilled in the art can further develop the method according to the disclosure in the specification. The method execution body shown in fig. 2 is exemplified by a user equipment and a network equipment. Wherein:

201. the user equipment transmits the SRS sequence through one or more antenna ports. Accordingly, the network device receives SRS sequences transmitted by one or more antenna ports of the user device.

In the embodiment of the application, the interference between SRS resources of different user equipment is reduced in the following three ways.

Mode one: cyclic shift alpha employed by SRS transmitted by ith antenna port of user equipment _i Based on the first parameter, the first parameter includes one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the number of SRS resource transmission times, the time slot index number of the time slot in which the SRS resource is located or the frame index number of the wireless frame in which the SRS resource is located.

For example, the SRS sequence transmitted by the ith antenna port of the user equipment may be expressed asWherein:

wherein,see the definition in clause 6.4.1.4.3 of section 3GPP TS 38.211 v17.2.0. />Is the total length of the SRS sequence. />See the definition in clause 5.2.2 of 3GPP TS 38.211 v17.2.0. Alpha _i And (3) cyclically shifting the SRS corresponding to the ith antenna port of the user equipment.

Optionally, the identity of the cell in which the user equipment is located may be a physical cell identity (physical cell identify, PCI), and/or the identity of the user equipment may be a cell radio network temporary identity (cell radio network temmporary identify, C-RNTI).

In one possible implementation, if not satisfiedAnd->Alpha is then _i Determining based on the first parameter;for the number of antenna ports transmitting SRS sequences, +.>Is the maximum number of cyclic shifts of the SRS.

For example, the number of the cells to be processed,if it does not meet +.>Then-> Or (F)>Wherein X is related to the first parameter, < >>For the shift of cyclic shift, p _i Is the port number of the i-th antenna port.

Optionally, when the first parameter includes one of an identifier of a cell in which the user equipment is located, an identifier of the user equipment, a number of transmissions of the SRS resource, a slot index number of a slot in which the SRS resource is located, or a frame index number of a radio frame in which the SRS resource is located, X is the first parameter.

For example, when the first parameter is the identity of the cell in which the user equipment is located, X is the identity of the cell in which the user equipment is located. When the first parameter is the identity of the user equipment, X is the identity of the user equipment. When the first parameter is the number of SRS transmission times, X is the number of SRS resource transmission times. When the first parameter is a time slot index number of a time slot where the SRS resource is located or a frame index number of a radio frame where the SRS resource is located, X is the time slot index number of the time slot where the SRS resource is located or the frame index number of the radio frame where the SRS resource is located.

When the first parameter includes a plurality of identifiers of a cell in which the user equipment is located, identifiers of the user equipment, SRS resource transmission times, a slot index number of a slot in which the SRS resource is located, or a frame index number of a radio frame in which the SRS resource is located, X may be a sum of the plurality of first parameters.

For example, when the first parameter includes an identifier of a cell in which the user equipment is located and an identifier of the user equipment, X is the identifier of the cell in which the user equipment is located+the identifier of the user equipment. When the first parameter includes the identifier of the cell in which the user equipment is located and the number of SRS resource transmission times, X is the identifier of the cell in which the user equipment is located+the number of SRS resource transmission times.

Alternatively, the embodiment pair of the application satisfiesAnd->When (I)>The determination method of (2) is not limited.

For example, satisfyAnd->When (I)>Or satisfy +.>And->When (I)>Or, wherein X is related to the first parameter. For the relationship between X and the first parameter, reference is made to the foregoing description, and is not repeated herein.

Mode two: the frequency domain initial position of SRS sequence transmitted by the ith antenna port is based on comb tooth positionDetermining comb tooth position->And can be determined based on the first parameter, p _i For the port number of the i-th antenna port, the first parameter includes one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the SRS transmission times, the time slot index number of the time slot in which the SRS resource is located or the frame index number of the wireless frame in which the SRS resource is located.

Optionally, the identifier of the cell in which the ue is located may be PCI, and/or the identifier of the ue may be C-RNTI.

For example, the frequency domain starting position of the SRS sequence transmitted by the ith antenna port isWherein:

wherein n is _shift Parameters configured for higher layer signaling are used to represent the values of SRS frequency domain position offset in units of RBs.

The number of subcarriers included in 1 RB may be 12.

And the SRS comb tooth position corresponding to the ith antenna port.

Determined by table 6.4.1.4.3-2 in TS 38.211 v 17.2.0.

Table 6.4.1.4.3-2:The offsetfor SRS as a function of K _TC andl′.

Wherein,representing the symbol index number within the SRS resource.

K _TC One parameter configured for the higher layer represents the number of comb teeth of SRS.

m _SRS,b And (3) withAs Table 6.4.1.4.3-1 in TS 38.211v17.2.0, according to B, B _SRS C _SRS To determine the value.

n _b Is thatAnd calculating the obtained numerical value. Wherein n is _RRC One parameter configured for higher layers.

k _F ∈{0,1,…,P _F -1 is determined by the higher layer parameter StartRBIndex, k if the higher layer signaling has no configuration parameter StartRBIndex _F ＝0。

k _hop From the following table in 3GPP TS 38.211v17.2.0It is determined that the number of the cells,

Table 6.4.1.4.3-3:The quantity k _hop as a function of

wherein if the higher layer signaling is configured with the parameter EnableStartRBHoppling, then

Otherwise, k _hop ＝0。

n _SRS Counting the number of SRS transmission times. For n _SRS The calculation of (1) comprises the following processing modes:

if the SRS is of an aperiodic type,where l' represents the symbol count of SRS, and R represents the parameter repetition factor of the higher layer signaling configuration. If there is no configuration ∈>

If the SRS is of periodic or semi-persistent type, the method aims at meeting the requirementTime slot of->To configure μ for a given subcarrier, each radio frame contains a number of slots. n is n _f Is the number of system frames. />To configure μ for a given subcarrier, the number of slots within a radio frame. T (T) _SRS Is the transmission period of the SRS. T (T) _offset Is an offset of the transmission period of the SRS. / >Is the number of symbols of the SRS.

P _F Can be configured by higher layer signaling, the corresponding parameter is FreqScalingFactor, and can represent that SRS transmission occupies 1/P of the total transmission bandwidth _F . Higher layer signaling if not configured, P _F ＝1。

In one possible implementation, if Comb tooth position +.>Determining based on the first parameter; wherein (1)>And->See the previous description and are not repeated here.

For example, ifThen Or (F)>Wherein X is related to a first parameter, K _TC See the previous description and are not repeated here. />Is the comb offset of the SRS.

For example, when the first parameter is the identity of the cell in which the user equipment is located, X is the identity of the cell in which the user equipment is located. When the first parameter is the identity of the user equipment, X is the identity of the user equipment. When the first parameter is the number of SRS resource transmission times, X is the number of SRS resource transmission times. When the first parameter is a time slot index number of a time slot where the SRS resource is located or a frame index number of a radio frame where the SRS resource is located, X is the time slot index number of the time slot where the SRS resource is located or the frame index number of the radio frame where the SRS resource is located.

When the first parameter includes a plurality of identifiers of a cell where the user equipment is located, identifiers of the user equipment, SRS resource transmission times, a timeslot index number of a timeslot where the SRS resource is located, or a frame index number of a radio frame where the SRS resource is located, X is a sum of the plurality of first parameters.

In one possible implementation, if not satisfiedAnd/or do not satisfy->Comb tooth position +.>Determining based on the first parameter; wherein (1)>And->See the foregoing description, inThis is not described in detail.

For example, if not meetingAnd/or do not satisfy ThenOr (F)>Wherein X is related to a first parameter, K _TC And->See the previous description and are not repeated here.

Similarly, when the first parameter includes one of an identifier of a cell in which the user equipment is located, an identifier of the user equipment, the number of SRS resource transmissions, a slot index number of a slot in which the SRS resource is located, or a frame index number of a radio frame in which the SRS resource is located, X is the first parameter. When the first parameter includes a plurality of identifiers of a cell where the user equipment is located, identifiers of the user equipment, SRS resource transmission times, a timeslot index number of a timeslot where the SRS resource is located, or a frame index number of a radio frame where the SRS resource is located, X is a sum of the plurality of first parameters. And are not illustrated here.

Alternatively, the embodiment pair of the application satisfiesIn the time-course of which the first and second contact surfaces,the determination method of (2) is not limited.

For example, satisfyIn the time-course of which the first and second contact surfaces,or satisfy +.>In the time-course of which the first and second contact surfaces,or->Wherein X is related to the first parameter. For the relationship between X and the first parameter, reference is made to the foregoing description, and is not repeated herein.

Mode three: the plurality of antenna ports are divided into a plurality of antenna port groups, each antenna port group comprises a plurality of antenna ports, and SRS sequences transmitted by the antenna ports in the same antenna port group occupy the same frequency domain resource. The grouping mode of the plurality of antenna ports is determined based on a random number sequence, or the grouping mode of the plurality of antenna ports is changed every preset number of time units, or the grouping mode of the plurality of antenna ports is changed every preset SRS transmission times.

For example, a grouping manner of a plurality of antenna ports is determined based on a random number sequence. Suppose that the user equipment has 4 antenna ports, antenna ports 1001,1002,1003,1004, respectively. The preset grouping mode of the antenna ports is assumed to comprise the following three modes: the first grouping of antenna ports is 1001 and 1003 for one antenna port group, and 1002 and 1004 for one antenna port group. The second grouping of antenna ports is 1001 and 1002 as one antenna port group, and 1003 and 1004 as one antenna port group. The third grouping of antenna ports is 1001 and 1004 for one antenna port group, and 1002 and 1003 for one antenna port group.

Different random number sequences may be set to correspond to different grouping patterns of antenna ports. The random number sequence may be a binary sequence. The user equipment may generate the random number sequence based on a generation formula of the random sequence. For example, assume that random number sequence 00 corresponds to the grouping scheme of the first antenna port, random number sequence 01 corresponds to the grouping scheme of the second antenna port, and random number sequence 10 corresponds to the grouping scheme of the third antenna port. If the random number sequence generated by the user equipment is 00, grouping a plurality of antenna ports in a first antenna port grouping mode; similarly, the random number sequence generated by the user equipment is 01, and a plurality of antenna ports are grouped in a grouping mode of a second antenna port; the random number sequence generated by the user equipment is 10, and the grouping mode of the third antenna port is adopted to group the plurality of antenna ports. Alternatively, the random sequence may generate a random number according to a slot index number and/or a radio frame index number and/or a symbol index number where the SRS is currently transmitted.

For another example, the grouping manner of the plurality of antenna ports is changed every preset number of time units. The time units may be time slots, symbols, radio frames, etc. Let the preset number of time units be 2 time slots. Then the grouping of antenna ports is different every 2 slots. For example, in the case of time slot 0 and time slot 1, the grouping method of the plurality of antenna ports is the first grouping method of the antenna ports. In the time slots 2 and 3, the grouping mode of the plurality of antenna ports is the grouping mode of the second type of antenna ports. In the case of time slots 4 and 5, the grouping method of the plurality of antenna ports is the grouping method of the third antenna port. In the case of the slots 6 and 7, the grouping method of the plurality of antenna ports is the grouping method of the first type of antenna ports. Similarly, the subsequent time slots are not described in detail. Alternatively, a grouping manner of one antenna port may be used in an odd slot or an odd radio frame, and another grouping manner of the antenna port may be used in an even slot or an even radio frame.

For another example, the number of times of transmission of the SRS sequence is changed every preset number of times in a grouping manner of a plurality of antenna ports. The preset SRS sequence transmission number is assumed to be 2. Then, every 2 SRS sequences are transmitted, the grouping of the antenna ports is different. For example, when SRS sequences are transmitted for the first and second times, the grouping manner of the plurality of antenna ports is the grouping manner of the first antenna port.

And when the SRS sequence is transmitted for the third time and the fourth time, the grouping mode of the plurality of antenna ports is the grouping mode of the second antenna port.

And when the SRS sequences are transmitted for the fifth time and the sixth time, the grouping mode of the plurality of antenna ports is the grouping mode of the third antenna port. The seventh and eighth transmissions of SRS sequences may be performed in a manner that the grouping of the plurality of antenna ports is the grouping of the first antenna port, and so on.

In one possible implementation, the user equipment informs the network layer by means of capability report whether the user equipment has the capability of randomizing SRS cyclic shift, or the capability of randomizing SRS comb positions, or the capability of randomizing SRS antenna ports.

In one possible implementation, the network device may enable or disable the SRS cyclic shift randomization function of the terminal device, or enable or disable the SRS comb location randomization function of the terminal device, or enable or disable the terminal device's ability to randomize the SRS antenna ports through higher layer signaling (e.g., RRC signaling or MAC-CE). Alternatively, the network layer may enable or disable the SRS cyclic shift randomization function of the terminal device, or enable or disable the SRS comb position randomization function of the terminal device, or enable or disable the capability of randomizing the SRS antenna port of the terminal device through DCI.

Wherein, the randomization refers to a function in which the configuration is not changed as it is, but is changed according to parameter configuration or environmental change. Optionally, the SRS cyclic shift randomization function corresponds to mode one, the SRS comb tooth position randomization function corresponds to mode two, and the SRS antenna port randomization corresponds to mode three.

By implementing the method described in fig. 2, SRS cyclic shift randomization or SRS comb tooth position randomization or SRS antenna port randomization can be performed, which is beneficial to reducing interference between SRS resources of different user equipments.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an SRS sequence transmission apparatus according to an embodiment of the present application. The SRS sequence transmission apparatus may be configured to perform part or all of the functions of the user equipment in the foregoing method embodiment. The device may be a user equipment, a device in the user equipment, or a device that can be matched with the user equipment for use. The SRS sequence transmission device may also be a chip or a chip module. The SRS sequence transmission apparatus shown in fig. 3 includes a communication unit 301. Optionally, the SRS sequence transmission apparatus may further include a processing unit, where the processing unit is configured to perform data processing. Wherein:

A communication unit 301, configured to send an SRS sequence through one or more antenna ports of a user equipment;

In one possible implementation, if not satisfied And->Alpha is then _i Determining based on the first parameter;

In one possible implementation of the present invention,

if it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if Then->Or (F)>

In one possible implementation, if not satisfiedDo not satisfy->Then Or (F)>

Referring to fig. 3, fig. 3 is a schematic structural diagram of an SRS sequence transmission apparatus according to an embodiment of the present application. The SRS sequence transmission apparatus may be configured to perform part or all of the functions of the network device in the foregoing method embodiment. The device may be a network device, a device in a network device, or a device that can be used in cooperation with a network device. The SRS sequence transmission device may also be a chip or a chip module. The SRS sequence transmission apparatus shown in fig. 3 includes a communication unit 301. Optionally, the SRS sequence transmission apparatus may further include a processing unit, where the processing unit is configured to perform data processing. Wherein:

a communication unit 301, configured to receive SRS sequences sent by one or more antenna ports of a user equipment;

the frequency domain initial position of SRS sequence transmitted by the ith antenna port is based on comb tooth position Determining comb tooth position->Based on the first parameter determination, p _i A port number for the i-th antenna port; or,

In one possible implementation of the present invention,

if it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if Then->Or (F)>

In one possible implementation, if not satisfiedDo not satisfy->Comb tooth positionDetermining based on the first parameter; />

In one possible implementation, if not satisfiedDo not satisfy->Then Or (F)>

The embodiment of the application also provides a chip which can execute the relevant steps of the user equipment in the embodiment of the method. The chip includes a processor and a communication interface, the processor configured to cause the chip to:

the plurality of antenna ports are divided into a plurality of antenna port groups, each antenna port group comprises a plurality of antenna ports, SRS sequences sent by the antenna ports in the same antenna port group occupy the same frequency domain, and the grouping mode of the plurality of antenna ports is determined based on random number sequences, or the grouping mode of the plurality of antenna ports is changed every a preset number of time units, or the grouping mode of the plurality of antenna ports is changed every a preset SRS sequence transmission times.

In one possible implementation of the present invention,

If it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if/>Then->Or (F)>

In one possible implementation, if not satisfiedDo not satisfy->Then Or (F)>

The embodiment of the application also provides a chip which can execute the relevant steps of the network equipment in the embodiment of the method. The chip includes a processor and a communication interface, the processor configured to cause the chip to:

Receiving SRS sequences sent by one or more antenna ports of user equipment;

wherein, the cyclic shift alpha adopted by SRS transmitted by the ith antenna port of the user equipment _i Based on the first parameter determination, the first parameter includes one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the SRS resource transmission times,A time slot index number of a time slot where the SRS resource is located or a frame index number of a wireless frame where the SRS resource is located; or,

In one possible implementation of the present invention,

if it does not meetThen->Or (F)>

Wherein X is related to a first parameter,is the offset of the cyclic shift.

In one possible implementation, if Then->Or (F)>

In one possible implementation, if not satisfiedDoes not satisfy/>Then Or (F)>

Referring to fig. 4, fig. 4 is a schematic structural diagram of an SRS sequence transmission apparatus according to an embodiment of the present invention. The SRS sequence transmission means may be a user equipment or a network device. The SRS sequence transmission apparatus 400 may include a memory 401 and a processor 402. Optionally, a communication interface 403 is also included. The memory 401, processor 402, and communication interface 403 are connected by one or more communication buses. Wherein the communication interface 403 is controlled by the processor 402 to transmit and receive information.

Memory 401 may include read-only memory and random access memory, and provides instructions and data to processor 402. A portion of memory 401 may also include non-volatile random access memory.

The communication interface 403 is used to receive or transmit data.

The processor 402 may be a central processing unit (Central Processing Unit, CPU), the processor 402 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 402 may be any conventional processor or the like. Wherein:

Memory 401 is used to store program instructions.

A processor 402 for calling program instructions stored in the memory 401.

The processor 402 invokes the program instructions stored in the memory 401, so that the SRS sequence transmission apparatus 400 performs the method performed by the user equipment or the network equipment in the above method embodiment.

As shown in fig. 5, fig. 5 is a schematic structural diagram of a module device according to an embodiment of the present application. The module device 500 may perform the steps associated with the ue or the network device in the foregoing method embodiment. The modular apparatus 500 includes: a communication module 501, a power module 502, a memory module 503 and a chip 504.

Wherein, the power module 502 is used for providing power for the module equipment; the storage module 503 is used for storing data and instructions; the communication module 501 is used for performing communication inside the module device or for communicating between the module device and an external device; the chip 504 is configured to perform the method performed by the ue or the network device in the above-described method embodiment.

It should be noted that, in the embodiments corresponding to fig. 4 and fig. 5, details of implementation of each step and details of the method embodiments may be referred to, and will not be described herein.

The present application also provides a computer readable storage medium having instructions stored therein, which when run on a processor, implement the method flows of the method embodiments described above.

The present application also provides a computer program product, which when run on a processor, implements the method flows of the above method embodiments.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, each module/unit included in each device or product applied to or integrated in the chip may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on an integrated processor inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same piece (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, the included modules/units may all be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) some modules/units may be implemented in hardware such as a circuit.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some acts may, in accordance with the present application, occur in other orders and concurrently. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

The descriptions of the embodiments provided in the present application may be referred to each other, and the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments. For convenience and brevity of description, for example, reference may be made to the related descriptions of the method embodiments of the present application for the functions and operations performed by the devices and apparatuses provided by the embodiments of the present application, and reference may also be made to each other, combined or cited between the method embodiments, and between the device embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for transmitting a sounding reference signal SRS sequence, the method comprising:

wherein, the cyclic shift alpha adopted by SRS transmitted by the ith antenna port of the user equipment _i Determining based on a first parameter, the first parameter comprising one or more of: the identification of the cell in which the user equipment is located, the identification of the user equipment, the number of SRS resource transmission times, the time slot index number of the time slot in which the SRS resource is located or the frame index number of the wireless frame in which the SRS resource is located; or,

the initial position of the frequency domain where the SRS sequence sent by the ith antenna port is positioned is based on the comb tooth positionDetermining the comb tooth position +.>Based on the first parameter determination, the p _i A port number for the i-th antenna port; or,

the antenna ports are divided into a plurality of antenna port groups, each antenna port group comprises a plurality of antenna ports, SRS transmitted by the antenna ports in the same antenna port group occupy the same frequency domain resource, and the grouping mode of the plurality of antenna ports is determined based on a random number sequence, or the grouping mode of the plurality of antenna ports is changed every a preset number of time units, or the grouping mode of the plurality of antenna ports is changed every a preset SRS sequence transmission time.

2. The method according to claim 1, wherein if not satisfiedAnd->Then said alpha _i Determining based on the first parameter;

wherein the saidFor the number of antenna ports for transmitting SRS sequences, said +.>Is the maximum number of cyclic shifts of the SRS.

3. The method of claim 2, wherein the step of determining the position of the substrate comprises,

the said

If it does not meetand/>Then->Or (F)>

Wherein the X is related to the first parameter, theIs the offset of the cyclic shift.

4. The method according to claim 1, characterized in that ifp _i ∈{1001,1003},and Said comb tooth position->Determining based on the first parameter;

wherein the saidFor the number of antenna ports for transmitting SRS sequences, said +.>For the maximum number of cyclic shifts of SRS, said +.>Is the offset of the cyclic shift.

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

if it isp _i ∈{1001,1003},and/>Then Or (F)>

Wherein the X is related to the first parameter, the K _TC Number of comb teeth for SRS, theIs the comb offset of the SRS.

6. The method according to claim 4 or 5, wherein,

if it does not meetp _i ∈{1001,1003},and/>Do not satisfy->p _i ∈{1001,1003},and/>Said comb tooth position->Determining based on the first parameter;

wherein the saidFor the number of antenna ports for transmitting SRS sequences, said +. >For the maximum number of cyclic shifts of SRS, said +.>Is the offset of the cyclic shift.

7. The method of claim 6, wherein the step of providing the first layer comprises,

if it does not meetp _i ∈{1001,1003},and/>Do not satisfy->p _i ∈{1001,1003},and/>Then->Or alternatively，

8. The method according to any of the claims 1-7, characterized in that the identity of the cell in which the user equipment is located is a physical cell identity PCI and/or the identity of the user equipment is a cell radio network temporary identity C-RNTI.

9. A method for transmitting a sounding reference signal SRS sequence, the method comprising:

receiving SRS sequences sent by one or more antenna ports of user equipment;

the initial position of the frequency domain where the SRS sequence sent by the ith antenna port is positioned is based on the comb tooth position Determining the comb tooth position +.>Based on the first parameter determination, the p _i A port number for the i-th antenna port; or,

the antenna ports are divided into a plurality of antenna port groups, each antenna port group comprises a plurality of antenna ports, SRS sequences sent by the antenna ports in the same antenna port group occupy the same frequency domain resource, and the grouping mode of the plurality of antenna ports is determined based on a random number sequence, or the grouping mode of the plurality of antenna ports is changed every a preset number of time units, or the grouping mode of the plurality of antenna ports is changed every a preset SRS sequence transmission times.

10. The method according to claim 9, wherein if not satisfiedAnd->Then said alpha _i Determining based on the first parameter;

11. The method of claim 10, wherein the step of determining the position of the first electrode is performed,

the said

If it does not meetand/>Then->Or (F)>

12. The method according to claim 9, characterized in that if p _i ∈{1001,1003},andSaid comb tooth position->Determining based on the first parameter;

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

if it isp _i ∈{1001,1003},and/>Then Or (F)>

14. The method according to claim 12 or 13, wherein,

15. The method of claim 14, wherein the step of providing the first information comprises,

if it does not meetp _i ∈{1001,1003},and/>Do not satisfy->p _i ∈{1001,1003},and/>Then->Or,

16. The method according to any of the claims 9-15, characterized in that the identity of the cell in which the user equipment is located is a physical cell identity PCI and/or the identity of the user equipment is a cell radio network temporary identity C-RNTI.

17. An SRS sequence transmission apparatus, the apparatus comprising:

18. An SRS sequence transmission apparatus, the apparatus comprising:

receiving SRS sequences sent by one or more antenna ports of user equipment;

19. A chip comprising a processor and a communication interface, the processor being configured to cause the chip to perform the method of any one of claims 1-8, or the processor being configured to cause the chip to perform the method of any one of claims 9-16.

20. The utility model provides a module equipment, its characterized in that, module equipment includes communication module, power module, storage module and chip, wherein:

the power supply module is used for providing electric energy for the module equipment;

the storage module is used for storing data and instructions;

the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment;

the chip being for performing the method of any one of claims 1 to 8 or the chip being for performing the method of any one of claims 9 to 16.

21. An SRS sequence transmission apparatus, characterized in that the SRS sequence transmission apparatus comprises a memory for storing a computer program comprising program instructions, and a processor configured to invoke the program instructions, to cause the SRS sequence transmission apparatus to perform the method according to any of claims 1-8 or to cause the SRS sequence transmission apparatus to perform the method according to any of claims 9-16.

22. A computer readable storage medium having stored therein computer readable instructions which, when run on a communication device, cause the communication device to perform the method of any one of claims 1 to 8 or cause the communication device to perform the method of any one of claims 9 to 16.