CN115334660A

CN115334660A - Resource allocation method, device and system

Info

Publication number: CN115334660A
Application number: CN202110513107.6A
Authority: CN
Inventors: 赵淼; 朱有团; 赵晓沐
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-11-11
Also published as: WO2022237625A1

Abstract

The application provides a resource allocation method, a device and a system, wherein the method comprises the following steps: sending resource configuration information to a first terminal device, wherein the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource and a period for sending the SRS; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; receiving an SRS from the first terminal device, wherein the SRS is carried on the SRS resource. By allocating different base sequence identifications and SRS resources to different terminal devices in a cell, the method and the device can shorten the period of sending the SRS by the terminal devices in the cell, thereby increasing the cell capacity and improving the system performance.

Description

Resource allocation method, device and system

Technical Field

The present application relates to the field of communications, and more particularly, to a resource configuration method, apparatus, and system.

Background

In a multiple-input multiple-output (MIMO) wireless communication system, a common-frequency networking is introduced because a Long Term Evolution (LTE) system and a fifth generation (5 th generation,5 g) system have higher requirements on the utilization rate of a frequency spectrum. But the same-frequency networking raises the utilization rate of frequency spectrum and simultaneously generates the problem of interference among cells.

A channel Sounding Reference Signal (SRS) is used for channel measurement estimation, quality detection, and the like, and is scheduled more frequently. When co-frequency networking is introduced, the signal-to-noise ratio of the SRS is easy to reduce, the system performance is poor, and the problems need to be solved at present.

Disclosure of Invention

The application provides a resource allocation method, a device and a system, different base sequence identifications and SRS resources are allocated to different terminal devices in a cell, so that the signal-to-noise ratio can be effectively improved, and meanwhile, the period of sending the SRS by the terminal devices in the cell is shortened, thereby increasing the cell capacity and improving the system performance.

In a first aspect, a resource allocation method is provided. The method may be performed by a network device, or may be performed by a chip or a circuit configured in the network device, which is not limited in this application. The method comprises the following steps: sending resource configuration information to a first terminal device, wherein the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource and a period for sending an SRS by the first terminal device; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; receiving an SRS from the first terminal device, wherein the SRS is carried on the SRS resource.

Illustratively, the network device configures the first terminal device with a base sequence identifier of k ₁ Configuring the second terminal device with a base sequence identifier of k ₂ . It is to be understood that the base sequence identifies k ₁ Corresponding to at least one terminal device, wherein the at least one terminal device comprises a first terminal device; similarly, the base sequence identifier k ₂ The number of the base sequence identifiers configured by the network device for the terminal device in the cell may also be more than two, which is not limited in this application. The first terminal equipment and the second terminal equipmentAnd all the devices belong to a cell. The SRS resource configured by the network device for the first terminal device may overlap with the SRS resource configured by the network device for the second terminal device in a frequency domain, a time domain, and a codeword.

Based on the above scheme, the network device configures different base sequence identifiers for the terminal devices in the cell, and compared with a scheme that the same base sequence identifier is allocated to the terminal devices in the cell, the network device can configure SRS resources that are overlapped in a frequency domain, a time domain and a code word for the terminal devices corresponding to the different base sequence identifiers, so that the terminal devices in the cell can shorten a period for sending the SRS, thereby increasing the cell capacity and improving the system performance.

Optionally, the number of SRS resources of the first terminal device and the period in which the first terminal device sends an SRS are different from that of the second terminal device, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the second SRS resource at a first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the third SRS resource at a second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier.

According to the scheme, different SRS resource quantities are configured for the first terminal equipment and the second terminal equipment, and the periods of SRS transmission of the first terminal equipment and the periods of SRS transmission of the second terminal equipment are different, so that the first SRS resource of the first terminal equipment is respectively identical to the second SRS resource, the time-frequency domain positions of the third SRS resource are identical, the SRS interference of the first terminal equipment at different moments is different, and the SRS interference randomization effect of the terminal equipment in a cell is achieved.

Optionally, the terminal devices to which the second SRS resource and the third SRS resource belong are different, or the terminal devices to which the second SRS resource and the third SRS resource belong are the same, but antenna ports for transmitting the second SRS resource and the third SRS resource are different.

In an implementable manner, the number of SRS resources of the first terminal device and the period of SRS transmission by the first terminal device is 1/2 of that of the second terminal device.

Optionally, the number of SRS resources of the first terminal device is 1, and the number of SRS resources of the second terminal device is 2; or the number of SRS resources of the first terminal device is 2, and the number of SRS resources of the second terminal device is 4. It should be understood that, in both cases, the period of SRS transmission by the first terminal device is 1/2 of the period of SRS transmission by the second terminal device.

In one possible embodiment, the method further comprises: obtaining an SRS receiving channel response matrix at a plurality of moments, wherein the plurality of moments comprise the first moment and the second moment; and performing weighted average on the SRS receiving channel response matrixes at the multiple moments to obtain a channel response matrix of the first terminal equipment.

Optionally, a time interval of an adjacent time in the multiple times is a period in which the first terminal device transmits the SRS.

Optionally, a first SRS receiving channel response matrix at the first time and a second SRS receiving channel response matrix at the second time are obtained; and performing weighted average on the first SRS receiving channel response matrix and the second SRS receiving channel response matrix to obtain a first channel response matrix of the first terminal equipment.

Based on the scheme, the first terminal equipment receives different SRS interferences at the first moment and the second moment, and more accurate channel estimation is obtained through a weighted average filtering algorithm.

In one possible embodiment, the number of SRS resources of the first terminal device and the period of the SRS transmission by the first terminal device is 2/3 of the period of the SRS transmission by the second terminal device.

Optionally, the number of SRS resources of the first terminal device is 2, the number of SRS resources of the second terminal device is 3, and the period during which the first terminal device sends the SRS is 2/3 of the period during which the second terminal device sends the SRS.

The above different schemes for configuring the number of SRS resources and the period for sending the SRS can ensure that the frequencies for sending the SRS by the first terminal device and the second terminal device are relatively fair in the same period of time, so that the SRS interference randomization effect is achieved while the resources for sending the SRS by the terminal devices in the cell are fair.

In a possible implementation manner, the method further includes obtaining a first SRS reception channel response matrix at a first time, a second SRS reception channel response matrix at a second time, and a third SRS reception channel response matrix at a third time; and performing weighted average on the first SRS receiving channel response matrix, the second SRS receiving channel response matrix and the third SRS receiving channel response matrix to obtain a second channel response matrix of the first terminal equipment.

Based on the scheme, the first terminal device is interfered by the SRS three times at the first time, the second time and the third time, so that the network device obtains more accurate channel estimation through a filtering algorithm, and the signal-to-noise ratio of the SRS and the performance of the system are effectively improved.

Optionally, a radio resource control, RRC, signaling is sent to the first terminal device, where the RRC signaling includes the resource configuration information.

In a second aspect, a resource allocation method is provided. The method may be executed by the terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in this application. The method comprises the following steps: receiving resource configuration information sent by a network device, wherein the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource, and a period for sending an SRS by the first terminal device; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; and sending the SRS to the network equipment, wherein the SRS is carried on the SRS resource.

Based on the above scheme, compared with the scheme that the base sequence identifier in the resource configuration information received by the first terminal device is different from that of the second terminal device, the network device can configure the terminal devices corresponding to different base sequence identifiers with SRS resources overlapped in the frequency domain, the time domain and the code word, so that the terminal devices in the cell can shorten the period of sending SRS, thereby increasing the cell capacity and improving the system performance.

In a possible implementation manner, the number of SRS resources of the first terminal device and the period in which the first terminal device transmits the SRS are different from that of the second terminal device, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the second SRS resource at the first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the third SRS resource at the second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier.

In the scheme, the number of the SRS resources of the first terminal device and the second terminal device is different, and the periods of sending the SRS by the first terminal device and the second terminal device are also different, so that the SRS resource of the first terminal device is respectively the same as the time-frequency domain position of the second SRS resource and the time-frequency domain position of the third SRS resource, the SRS interference received by the first terminal device at different moments is different, and the effect of SRS interference randomization in a cell is achieved.

Optionally, the number of SRS resources of the first terminal device and the period of SRS transmission by the first terminal device are 1/2 of that of the second terminal device.

Exemplarily, the number of SRS resources of the first terminal device is 1, and the number of SRS resources of the second terminal device is 2; or the number of SRS resources of the first terminal device is 2, and the number of SRS resources of the second terminal device is 4. It should be understood that, in both cases, the period of SRS transmission by the first terminal device is 1/2 of the period of SRS transmission by the second terminal device.

Optionally, the number of SRS resources of the first terminal device and the period for the first terminal device to transmit the SRS are 2/3 of that of the second terminal device.

Exemplarily, the number of SRS resources of the first terminal device is 2, the number of SRS resources of the second terminal device is 3, and the period of SRS transmission by the first terminal device is 2/3 of the period of SRS transmission by the second terminal device.

The two alternatives can ensure that the frequencies of the first terminal device and the second terminal device for sending the SRS in the same period of time are relatively fair, so that the SRS interference randomization effect is achieved while the resources of the terminal devices in the cell for sending the SRS are fair.

Optionally, a radio resource control RRC signaling sent by the network device is received, where the RRC signaling includes the resource configuration information.

In a third aspect, an apparatus for resource configuration is provided. The apparatus may be a network device, or may also be a chip or a circuit configured in the network device, which is not limited in this application. The device comprises a transceiving unit: the transceiver unit is configured to send resource configuration information to a first terminal device, where the resource configuration information indicates a first base sequence identifier of the first terminal device, a Sounding Reference Signal (SRS) resource of a channel, and a period for sending an SRS by the first terminal device; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; the transceiver unit is further configured to receive an SRS from the first terminal device, where the SRS is carried on the SRS resource.

According to the scheme, different SRS resource quantities are configured for the first terminal equipment and the second terminal equipment, and the periods of SRS transmission of the first terminal equipment and the periods of SRS transmission of the second terminal equipment are different, so that the first SRS resource of the first terminal equipment is respectively identical to the second SRS resource, the time-frequency domain positions of the third SRS resource are identical, the SRS interference suffered by the first terminal equipment at different moments is different, and the effect of SRS interference randomization in a cell is achieved.

In one possible embodiment, the number of SRS resources of the first terminal device and the period of SRS transmission by the first terminal device is 1/2 of that of the second terminal device.

In a possible implementation, the apparatus further comprises a processing unit: the processing unit is configured to acquire an SRS reception channel response matrix at a plurality of times, where the plurality of times include a first time and a second time; and performing weighted average on the SRS receiving channel response matrixes at the multiple moments to obtain a channel response matrix of the first terminal equipment.

Based on the scheme, under the condition that the SRS interference of the first terminal equipment is randomized, the network equipment effectively improves the SRS signal-to-noise ratio and the system performance through a filtering algorithm.

Optionally, the processing unit is configured to obtain a first SRS reception channel response matrix at the first time and a second SRS reception channel response matrix at the second time; and performing weighted average on the first SRS receiving channel response matrix and the second SRS receiving channel response matrix to obtain a first channel response matrix of the first terminal equipment.

In one possible embodiment, the number of SRS resources of the first terminal device and the period of the SRS transmission by the first terminal device is 2/3 of the period of the second terminal device.

In a possible implementation manner, the apparatus further includes a processing unit, configured to acquire a first SRS reception channel response matrix at a first time, a second SRS reception channel response matrix at a second time, and a third SRS reception channel response matrix at a third time; and performing weighted average on the first SRS receiving channel response matrix, the second SRS receiving channel response matrix and the third SRS receiving channel response matrix to obtain a second channel response matrix of the first terminal equipment.

Optionally, the transceiver unit is specifically configured to send a radio resource control RRC signaling to the first terminal device, where the RRC signaling includes the resource configuration information.

In a fourth aspect, an apparatus for resource configuration is provided. The apparatus may be a terminal device, or may also be a chip or a circuit configured in the terminal device, which is not limited in this application. The device comprises a transceiving unit: the transceiver unit is configured to receive resource configuration information sent by a network device, where the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource, and a period in which the first terminal device sends an SRS; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; the transceiver unit is further configured to send the SRS to the network device, where the SRS is carried on the SRS resource.

Based on the above scheme, compared with the scheme that the base sequence identifier in the resource configuration information received by the first terminal device is different from that of the second terminal device, the network device can configure SRS resources overlapped in the frequency domain, the time domain and the code word for the terminal devices corresponding to different base sequence identifiers, so that the terminal devices in the cell can shorten the period of sending SRS, thereby increasing the cell capacity and improving the system performance.

In a possible embodiment, the number of SRS resources of the first terminal device and the period in which the first terminal device transmits the SRS are different from the second terminal device. The first SRS resource of the first terminal device is at the same frequency domain position as the second SRS resource at the first time, the first SRS resource of the first terminal device is at the same frequency domain position as the third SRS resource at the second time, and the second SRS resource and the terminal device to which the third SRS resource belongs correspond to the second base sequence identifier.

Exemplarily, the number of SRS resources of the first terminal device is 2, the number of SRS resources of the second terminal device is 3, and the period during which the first terminal device transmits SRS is 2/3 of the period during which the second terminal device transmits SRS.

The two alternatives can ensure that the frequency of sending the SRS by the first terminal equipment and the second terminal equipment in the same period of time is relatively fair, so that the effect of SRS interference randomization can be achieved while the resources of sending the SRS by the terminal equipment in the cell are fair.

Optionally, the transceiver unit is specifically configured to receive a radio resource control RRC signaling sent by the network device, where the RRC signaling includes the resource configuration information.

In a fifth aspect, a resource configuration apparatus is provided, which may be the network device in the first aspect, or an electronic device configured in the network device, or a larger device including the network device. The apparatus is configured to perform the method provided by the first aspect. The communication device comprises a transceiver, configured to send resource configuration information to a first terminal device, where the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource, and a period in which the first terminal device sends an SRS; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; the transceiver is further configured to receive an SRS from the first terminal device, where the SRS is carried on the SRS resource.

Optionally, the apparatus further comprises a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method in any of the possible implementations of the first aspect and the first aspect. Optionally, the apparatus further comprises a memory, which may be deployed separately from the processor or may be deployed centrally. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the apparatus is a chip configured in a network device. When the apparatus is a chip configured in a network device, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip or a chip system. The processor may also be embodied as a processing circuit or a logic circuit.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a specific implementation process, the processor may be one or more chips, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be, but is not limited to, that received and input by the receiver, the signal output by the output circuit may be, but is not limited to, that output to and transmitted by the transmitter, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

A sixth aspect provides a resource configuration apparatus, which may be the first terminal device in the second aspect, or an electronic device configured in the first terminal device, or a larger device including the first terminal device. The apparatus is configured to perform the method provided by the second aspect. The device comprises a transceiver, wherein the transceiver is used for receiving resource configuration information sent by network equipment, and the resource configuration information indicates a first base sequence identifier of the first terminal equipment, a channel Sounding Reference Signal (SRS) resource and a period of sending the SRS by the first terminal equipment; the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier; the transceiver is further configured to transmit the SRS to the network device, where the SRS is carried on the SRS resource.

Optionally, the apparatus further includes a memory, and the processor is coupled to the memory and configured to execute the instructions in the memory to implement the communication method in any one of the above-mentioned second aspect and possible implementation manners of the second aspect. Optionally, the communication device further comprises a memory, which may be deployed separately from the processor or may be deployed centrally. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In another implementation, the apparatus is a chip configured in a terminal device. When the apparatus is a chip configured in a terminal device, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip or a chip system. The processor may also be embodied as a processing circuit or a logic circuit.

In a seventh aspect, a computer program product is provided, the computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the possible implementations of the first or second aspect and aspects described above.

In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any one of the above-mentioned first or second aspects and possible implementations of the first or second aspects.

In a ninth aspect, a communication system is provided, which includes the network device and the terminal device.

Drawings

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is a schematic flowchart interaction diagram of a resource allocation method suitable for use in the embodiment of the present application.

Fig. 3 is a schematic diagram of a method of determining a channel estimate suitable for use in embodiments of the present application.

Fig. 4 is a schematic resource allocation diagram according to an embodiment of the present application.

Fig. 5 is a schematic view of another resource allocation provided in the embodiment of the present application.

Fig. 6 is a schematic view of another resource allocation provided in an embodiment of the present application.

Fig. 7 is a schematic block diagram of a communication device suitable for use in embodiments of the present application.

Fig. 8 is a schematic block diagram of another communication device suitable for use in embodiments of the present application.

Fig. 9 is a schematic structural diagram of a terminal device suitable for use in the embodiments of the present application.

Fig. 10 is a schematic structural diagram of a network device suitable for use in embodiments of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

As shown in fig. 1, the communication system 100 may include a network device 120, such as the network device shown in fig. 1. The communication system 100 may also include at least one terminal device 110, such as the terminal device shown in fig. 1. The connection between the terminal device and the network device and between the terminal device and the terminal device can be established for communication, and the sending device can indicate the scheduling information of the data through the control information, so that the receiving device can correctly receive the data according to the control information.

Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. In an embodiment of the present application, the terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transport security (transport security), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (PDA, l) station, a personal digital assistant (personal digital assistant), a wireless terminal with wireless modem, a wireless terminal with future function, or other devices connected to a communication network, a wireless communication network, or a future evolution device, or a wireless communication device.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application function, and need to be matched with other equipment such as a smart phone for use, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In addition, the terminal device may also be a terminal device in an internet of things (IoT) system. The IoT is an important component of future information technology development, and is mainly technically characterized in that articles are connected with a network through a communication technology, so that an intelligent network with man-machine interconnection and object interconnection is realized. The specific form of the terminal device is not limited in the present application.

It should be understood that in the embodiment of the present application, the terminal device may be an apparatus for implementing a function of the terminal device, or may be an apparatus capable of supporting the terminal device to implement the function, such as a chip system, and the apparatus may be installed in the terminal. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The network device in the embodiment of the present application may be any device having a wireless transceiving function. Such devices include, but are not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (Node B, NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Base Station (e.g., home evolved NodeB, or Home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a Wireless Fidelity (WIFI) system, a Wireless relay Node, a Wireless backhaul Node, a Transmission Point (TP), or a transmission and reception Point (transmission and reception Point), etc., and may also be 5G, such as NR, a gbb in a system, or a transmission Point (TRP or TP), one or a group of antennas (including multiple antennas, NB, a panel, etc.) of a Base Station in a 5G system, or a distributed Node B, such as a Base Band Unit (BBU), etc.

In some deployments, the gNB may include Centralized Units (CUs) and DUs. The gNB may further include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

It should be understood that in the embodiment of the present application, the network device may be an apparatus for implementing a function of the network device, and may also be an apparatus capable of supporting the network device to implement the function, for example, a system on chip, and the apparatus may be installed in the network device.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), an LTE system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5 g) system, or a future-evolution communication system, vehicle-to-other devices (vehicle-to-X V2X), wherein V2X may include vehicle-to-internet (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), etc., long term evolution (long term evolution-vehicle, LTE-V) for vehicle-to-vehicle, vehicle networking, machine type communication (MTC, internet of things), ioT, long term evolution (long term evolution-machine, LTE-M) for machine-to-machine (M2M), device-to-device (D2D), etc.

It should be understood that the present application may be applied to independently deployed 5G or LTE systems, and may also be applied to non-independently deployed 5G or LTE systems, such as DC scenarios, including dual connectivity (E-UTRA-NR dual connectivity, EN-DC) and the like, and Carrier Aggregation (CA) scenarios.

In order to facilitate understanding of the embodiments of the present application, a brief description of several terms referred to in the present application will be provided below.

1. Selecting a terminal in the day: all physical antennas of the antenna selection terminal have the capability of sending signals, taking a 2T4R antenna selection terminal as an example, 2T4R indicates that the terminal has 4 physical antennas in total, 2 physical antennas are used for sending signals each time, and the effect of sending signals by the 4 physical antennas can be realized by sending signals twice.

2. Selecting a terminal in a non-daily mode: the number of transmitting antennas of the terminal is less than the number of receiving antennas, for example, a 2T4R non-antenna-selected terminal is taken as an example, 2T4R indicates that the terminal has 4 physical antennas in total, and only 2 physical antennas for transmitting signals are used.

3. SRS resource: the minimum allocation unit of the SRS includes a time domain position that can be used for transmitting the SRS, a frequency domain position that can be used for transmitting the SRS, a bandwidth that can be used for transmitting the SRS, and an antenna port for transmitting the SRS.

4. SRS resource set: the SRS resource set comprises a plurality of SRS resources, and the SRS functions borne in different SRS resource sets are different.

5. SRS resource set of Codebook (CB) attribute: the function of the SRS carried by the SRS resource set is for uplink codebook selection.

6. SRS resource set of antenna polling (AS) attribute: the function of the SRS carried by the SRS resource set is to transmit the SRS.

When the network equipment allocates SRS resources for the terminal equipment, 1 SRS resource set used for sending CB attributes is allocated, and the resource set at most comprises 2 SRS resources; allocating 1 resource set for sending the SRS with the AS attribute, if the terminal device is a non-antenna-selected terminal device, the resource set for sending the SRS with the AS attribute contains at most 1 SRS resource, and if the terminal device is an antenna-selected terminal device, the number of the SRS resources contained at most in the resource set for sending the SRS with the AS attribute is the number of physical antennas of the antenna-selected terminal device, that is, the upper limit of the number of SRS resources allocated to different terminal devices is different. Furthermore, the same SRS resource can be multiplexed in different sets of resources, e.g., SRS resource res ₀ Can be not onlyThe SRS resource set belonging to the CB attribute and the SRS resource set belonging to the AS attribute.

The LTE and 5G system introduces a same-frequency networking mode due to the high requirement on the frequency spectrum utilization rate, thereby bringing interference among cells. SRS scheduling is frequent, and therefore, when terminal equipment in a cell or a cell transmits an SRS using the same resource, serious interference occurs, and thus, the signal-to-noise ratio of the SRS is reduced.

In one possible embodiment, the base sequence id for generating the SRS sequence is affected by u, v and the sequence length Nzc of the SRS, and the calculation formula of the value of the base sequence id q is as follows:

q _bar ＝Nzc*(u+1)/31

u in the above formula is a group number, and can take a value of 0-29, u can represent 30 cells, and v is a sequence number, and can take a value of 0 or 1.

If the signal-to-noise ratio of the SRS is to be improved and the interference randomization of the SRS in the neighboring cell is desired, the u value needs to be modified by supporting the group hopping of the SRS (for example, 30 cells are divided into a group according to the cell identifier, so that the SRS sequences in the group hop synchronously), so that the change of the q value is realized when the terminal devices in different cells transmit the SRS using the same resource. Interference randomization refers to the fact that the interference experienced by a terminal device may vary over time.

However, in the process of implementing the inter-cell SRS interference randomization, the SRS group hopping cannot implement the intra-cell SRS interference randomization. And the group hopping of the SRS needs to be synchronously started in the whole network in the implementation process, if the cells in the same group are not synchronously started, the SRS sequence identifications of the two cells may hop to the same position at a certain moment, and the SRS interference randomization between the cells cannot be realized, thereby affecting the performance of the system.

Optionally, it is expected that neighboring cell interference of the SRS is randomized, so as to further improve system performance, and the method can also be implemented by modifying a v value, that is, sequence hopping. The v value in the sequence jump is related to a pseudo random sequence, and 0 or 1 can be randomly generated according to the time slot number v value. Therefore, the SRS sequence of each terminal device changes in randomness along with the increase of the number of the time slot, and the SRS interference randomization is further completed.

However, in individual cases, for example, when the bandwidth of the scheduled SRS is 8RB, 2 combs are configured for the SRS, and the sequence length Nzc of the SRS is 47,v =1, and two consecutive u are u =1 and u =2, q calculated by the above formula is equal to 4, that is, in this case, q values of two different cell start sequence hops are the same, and a system error occurs, thereby affecting system performance.

Moreover, in the above-mentioned scheme of group hopping and sequence hopping, when the period configured by the network device for transmitting SRS is large, for example, greater than 20 ms, taking NR system as an example, the slot symbol is 0 to 19, the slot symbol for transmitting SRS for the first time and the slot symbol for transmitting SRS for the second time may be repeated, and the SRS sequence of each terminal device cannot be changed randomly with the increase of the slot symbol, so that the effect of SRS interference randomization cannot be achieved.

Fig. 2 is a schematic flowchart interaction diagram of a resource allocation method suitable for the embodiment of the present application. The method 200 comprises:

step S210, the network device sends configuration information to the first terminal device. Correspondingly, the first terminal device receives the configuration information.

In one possible embodiment, the configuration information indicates at least one of a first base sequence identity of the first terminal device, a resource of the first signal, and a period of the first signal. Or, the configuration information includes at least one of a first base sequence identification of the first terminal device, a resource of the first signal, and a period of the first signal. The first terminal device and the second terminal device belong to the same cell, and the second terminal device corresponds to the second base sequence identifier.

Optionally, the first signal is a reference signal for channel sounding, such as an SRS. The resources of the first signal include at least one of time domain resources, frequency domain resources, and codeword resources. The period of the first signal is a period in which the first terminal device transmits the first signal, which is taken as an SRS example, that is, the period of the first signal is a period in which the first terminal device transmits the SRS.

It should be understood that the SRS is only an example of the first signal, and the first signal may also be another reference signal for channel sounding, or in the development of the technology, the first signal may be an evolved signal of the SRS, which is not limited in this application. Hereinafter, the SRS is also exemplified similarly, and is not described in detail in the following description.

Illustratively, the network device configures a base sequence identifier k for the first terminal device ₁ Configuring a base sequence identifier k for the second terminal device ₂ . It should be understood that the base sequence identifies k ₁ Corresponding to at least one terminal device, wherein the at least one terminal device comprises a first terminal device; similarly, the base sequence identifier k ₂ The number of the base sequence identifiers configured by the network device for the terminal device in the cell may also be more than two, which is not limited in this application. Network equipment as base sequence identification k ₁ The SRS resource configured by one of the corresponding at least one terminal equipment and the network equipment are taken as a base sequence identifier k ₂ The SRS resource configured by one of the corresponding at least one terminal device may overlap in frequency domain, time domain and codeword.

By configuring 2 and more than 2 base sequence identifications for the terminal equipment in the cell, the resources allocated to the terminal equipment with different base sequence identifications can be overlapped on time domain, frequency domain and code word resources when the terminal equipment with different base sequence identifications performs resource allocation of the first signal. Compared with the scheme of configuring the same base sequence identifier for the terminal equipment in the cell in the prior art, the method and the device can enable the terminal equipment in the cell to shorten the period of sending the first signal, thereby increasing the cell capacity and improving the system performance.

Optionally, when 2 or more than 2 base sequence identifiers are configured for the terminal device in the cell, the period of the first signal is T1, and when the same base sequence identifier is configured for the terminal device in the cell, the period of the first signal is T2, and then T1 is less than or equal to T2.

Optionally, the network device may allocate the base sequence identifier randomly through an identifier of a cell to which the terminal device belongs or between identifiers 0 to 29. When the network device performs resource allocation of the first signal for terminal devices with the same base sequence identifier, resources allocated to different terminal devices are not overlapped in time domain, frequency domain and code word resources.

In a possible implementation, the number of resources of the first signal configured by the network device for the first terminal device is different from that of the second terminal device, and/or the period of the first signal configured by the network device for the first terminal device is different from that of the second terminal device. The frequency domain position of the first resource of the first terminal device is the same as that of the second resource at the first moment, the frequency domain position of the first resource of the first terminal device is the same as that of the third resource at the second moment, and the second resource and the terminal device to which the third resource belongs correspond to the second base sequence identifier. The first resource is a resource of a first signal of the first terminal device, the second resource and the third resource may be resources of a first signal of the second terminal device, and antenna ports of the second resource and the third resource are different. Or the second resource is a resource of the first signal of the second terminal device, the third resource is a resource of the first signal of the third terminal device, the second terminal device and the third terminal device correspond to the second base sequence identifier, and the second terminal device and the third terminal device are different terminal devices.

Exemplarily, the number of SRS resources configured by the network device for the first terminal device and the period for sending the SRS are different from those of the second terminal device, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the second SRS resource at the first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the third SRS resource at the second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier. The terminal devices to which the second SRS resource and the third SRS resource belong are different, or the terminal devices to which the second SRS resource and the third SRS resource belong are the same, but the antenna ports of the second SRS resource and the third SRS resource are different.

Optionally, the number of resources of the first signal configured for the first terminal device by the network device and the period of the first signal are 1/2 of that of the second terminal device. For example, the number of SRS resources of the first terminal device and the transmission period of the SRS are 1/2 of that of the second terminal device.

In the following, the SRS is taken as an example to illustrate a specific configuration of a network device sending a first signal to a terminal device in a cell under different conditions.

AS an example, a first terminal device and a second terminal device are both non-antenna-selected terminals, a network device configures SRS resources with 1 AS attribute for the first terminal device, and a network device configures SRS resources with 2 SRS resources for the second terminal device, where one is SRS resource with AS attribute and the other is SRS resource with CB attribute. The network device configures the SRS transmission period of the first terminal device as a field Tsrs1, configures the SRS transmission period of the second terminal device as a field Tsrs2, and configures Tsrs1 as 1/2 of Tsrs 2.

AS another example, a first terminal device and a second terminal device are both antenna selection terminals, a network device configures SRS resources with 2 AS attributes for the first terminal device, and a network device configures SRS resources with 4 SRS resources for the second terminal device, where 2 are SRS resources with AS attributes, and the other 2 are SRS resources with CB attributes. The network device configures the SRS transmission period of the first terminal device as a field Tsrs1, configures the SRS transmission period of the second terminal device as a field Tsrs2, and configures Tsrs1 as 1/2 of Tsrs 2.

It should be understood that the first terminal device and the second terminal device in the foregoing example may be exemplified by 2T4R non-day-selected terminals, and may also be exemplified by 1T2R non-day-selected terminals, but the first terminal device and the second terminal device in another example are exemplified by 2T4R day-selected terminals.

It should be further understood that the method provided in the embodiment of the present application may also be applied to a 1T4R terminal device, and the 2T4R terminal device and the 1T2R terminal device are only examples, and the present application does not limit this.

Optionally, the number of resources of the first signal configured for the first terminal device by the network device and the period of the first signal are 2/3 of that of the second terminal device. For example, the number of SRS resources of the first terminal device and the transmission period of the SRS are 2/3 of that of the second terminal device.

AS another example, the first terminal device and the second terminal device are both antenna selection terminals, the network device configures SRS resources with 2 AS attributes for the first terminal device, and the network device configures SRS resources with 3 SRS resources for the second terminal device, where 2 are SRS resources with AS attributes, and the remaining 1 are SRS resources with CB attributes. The network device configures the sending period of the SRS of the first terminal device as a field Tsrs1, configures the sending period of the SRS of the second terminal device as a field Tsrs2, and configures the Tsrs as 2/3 of the Tsrs 2.

It should be understood that, in the above three examples, the number of SRS resources with different attributes allocated by the network device to the first terminal device and the second terminal device is only an example, and the application is not limited thereto. And the ratio of the number of resources of the first signal configured by the network device for the first terminal device and the second terminal device to the period of the first signal may be other ratios besides 1/2 and 2/3 listed above, which is not limited in this application.

Optionally, the configuration information in step S210 is carried in the radio resource control signaling. For example, the configuration information is carried in RRC signaling.

Step S220, the terminal device sends a first signal, where the first signal is carried on a resource of the first signal. Correspondingly, the network device receives the first signal on the resource.

Illustratively, the terminal device transmits an SRS, which is carried on SRS resources. Correspondingly, the network device receives the SRS on the SRS resource.

It should be understood that the first signals identified by different base sequences belong to non-orthogonal signals, and if the first terminal device and the second terminal device transmit the first signals on the same time-frequency resource, mutual interference may occur. The following specifically describes the interference randomization process of the first signal with respect to the configuration scheme of the resource and transmission period of different first signals in step S210.

Optionally, after step S220, the network device needs to perform channel estimation according to the first signals received at different times.

The method 200 further comprises:

in step S310, the network device obtains a first signal receiving channel response matrix at a plurality of time instants, where the plurality of time instants includes the first time instant and the second time instant.

Illustratively, the network device obtains an SRS reception channel response matrix for a plurality of time instants, including the first time instant and the second time instant.

In an implementation manner, the network device obtains a first SRS reception channel response matrix at the first time and a second SRS reception channel response matrix at the second time.

In another implementation manner, the network device obtains a first SRS reception channel response matrix at a first time, a second SRS reception channel response matrix at a second time, and a third SRS reception channel response matrix at a third time.

Optionally, the obtaining, by the network device, an SRS reception channel response matrix at a certain time includes: the network equipment acquires the SRS receiving real channel response matrix and the SRS interference item at a certain moment.

Illustratively, t ₁ SRS resource A of terminal equipment A and SRS resource a of terminal equipment a at the moment ₀ Same in frequency domain position, then for terminal device A, at t ₁ Time-of-day SRS receive channel response matrix

Wherein H _A (t 1) receiving the true channel response matrix for SRS, inf (a) ₀ ) Is an SRS interference term.

Optionally, a time interval of an adjacent time in the multiple times is a period of the first terminal device transmitting the first signal. For example, the time interval between the first time and the second time is a period in which the first terminal device transmits the first signal, and the time interval between the second time and the third time is a period in which the first terminal device transmits the first signal.

Step S320, the network device performs weighted average on the first signal receiving channel response matrixes at the multiple times to obtain a channel response matrix of the first terminal device.

Illustratively, the network device performs weighted average on the SRS reception channel response matrices at the multiple time instants to obtain the channel response matrix of the first terminal device.

Corresponding to an implementation manner, the network device performs weighted average on the first SRS reception channel response matrix and the second SRS reception channel response matrix to obtain the first channel response matrix of the first terminal device.

Corresponding to another realizable manner, the network device performs weighted average on the first SRS reception channel response matrix, the second SRS reception channel response matrix, and the third SRS reception channel response matrix to obtain a second channel response matrix of the first terminal device.

The following describes, by taking SRS as an example, an interference randomization process of a first signal in different configuration scenarios.

As an example, as shown in fig. 4, the scenario corresponds to the scheme of configuring SRS resources as an example in step S210 described above. The first terminal device and the second terminal device are both non-antenna selection terminals, the network device configures 1 SRS resource with AS attribute for the first terminal device, and the network device configures 2 SRS resources for the second terminal device, wherein one is SRS resource with AS attribute, and the other is SRS resource with CB attribute. The network device configures the SRS transmission period of the first terminal device as a field Tsrs1, configures the SRS transmission period of the second terminal device as a field Tsrs2, and configures Tsrsl as 1/2 of Tsrs 2.

The first terminal device may be terminal device a or terminal device B in fig. 4, and the base sequence identifiers corresponding to terminal device a and terminal device B are k1; and respectively identifying SRS resources of the terminal equipment A and the terminal equipment B by using A0 and B0. The second terminal device may be the terminal device a or the terminal device b in fig. 4, and the base sequence identifiers corresponding to the terminal device a and the terminal device b are k2; two SRS resources of terminal device a are identified by a0 and a1, and two SRS resources of terminal device b are identified by b0 and b 1. The period Tsrs2 of sending SRS resource by terminal device a and terminal device B is configured to be 2T, the period Tsrs1 of sending SRS resource by terminal device a and terminal device B is configured to be 4T, and T is the time interval of adjacent time shown in the figure.

In fig. 4, the SRS resources of terminal device a and terminal device B are the same as the SRS resources of terminal device a and terminal device B in frequency domain, and the time domain position allocation is as shown in fig. 4. The A0 resource and the A0 resource may appear at the same time-frequency resource position to form interference, the B0 resource and the B0 resource may appear at the same time-frequency position to interfere with each other, and similarly, for the A0 resource and the B1 resource, the B0 resource and the a1 resource may also interfere with each other at the same time-frequency domain position.

As can be seen from fig. 4, for terminal a, the interference collided at different times is different, taking resource A0 of terminal a as an example, resource A0 of terminal a is collided at time t1, and resource b1 of terminal b is collided at time t3, since the channels for sending SRS by terminal a and terminal b are different, which is equivalent to that the interference collided at different times by terminal a is different, so that the purpose of SRS interference randomization can be achieved.

A first SRS reception channel response matrix indicating that terminal device a is on the network device side at time t1,

a second SRS reception channel response matrix, H, representing terminal device A at time t3 on the network device side _A Representing the true channel response matrix for terminal device a. the calculation formula of the receiving channel response matrix of the terminal device a at the network device side at the time t1 and t3 is as follows:

assuming that the channel is substantially constant over the range t1 to t3, H _A (t1)≈H _A (t 3), so that the first channel response matrix of terminal device A can be obtained by a weighted average filtering algorithm

Since the channels of terminal device a and terminal device b are different, they are independent of each other in the SRS reception channel response statistics, and thus

Residual interfering components of

Less than Inf (a) ₀ ) And Inf (b) ₁ ) I.e. after passing through a filtering algorithm

SRS receiving channel response matrix of terminal equipment A on network equipment side compared with time t1 and time t3

And

and is more accurate.

Based on the base sequence identification and the SRS resource configuration scheme, the SRS interference is randomized, so that the SRS interference in a cell is reduced through a filtering algorithm of network equipment, and the uplink and downlink system performance is effectively improved.

It should be understood that, in fig. 4, the number of the terminal devices corresponding to the base sequence identifier k1 is only an example, the weighted average filtering algorithm is only an example, and the network device may also obtain the first channel response matrix through another filtering algorithm, which is not limited in this application.

As another example, as shown in fig. 5, the scenario corresponds to the scheme of configuring SRS resources as an example in step S210 described above. The first terminal device and the second terminal device are both antenna selection terminals, the network device configures SRS resources with 2 AS attributes for the first terminal device, and the network device configures SRS resources with 4 SRS resources for the second terminal device, wherein 2 are SRS resources with AS attributes, and 2 are SRS resources with CB attributes. The network device configures the SRS transmission period of the first terminal device as a field Tsrs1, configures the SRS transmission period of the second terminal device as a field Tsrs2, and configures Tsrs1 as 1/2 of Tsrs 2.

The first terminal device may be terminal device a or terminal device B in fig. 5, and the base sequence identifiers corresponding to terminal device a and terminal device B are k1; and respectively identifying 2 SRS resources of the terminal equipment A and the terminal equipment B by using A0, A1, B0 and B1. The second terminal device may be the terminal device a or the terminal device b in fig. 5, and the base sequence identifier corresponding to the terminal device a and the terminal device b is k2; two SRS resources of terminal device a are identified by a0, a1, a2 and a3, and 4 SRS resources of terminal device b are identified by b0, b1, b2 and b 3. The period Tsrs2 of sending the SRS resource by the terminal device a and the terminal device B is configured to be 4T, and the period Tsrs1 of sending the SRS resource by the terminal device a and the terminal device B is configured to be 8T.

In fig. 5, the SRS resources of terminal device a and terminal device B are the same as the SRS resources of terminal device a and terminal device B in frequency domain position, and the time domain position allocation is as shown in fig. 5. As can be seen from fig. 5, the terminal a has different interference that is collided with at different times, and taking the resource A0 of the terminal a as an example, the resource A0 of the terminal a is collided with at time t1, and the resource a2 of the terminal a is collided with at time t 5.

A first SRS reception channel response matrix indicating that terminal device a is at the network device side at time t1,

a second SRS reception channel response matrix, H, representing terminal device A at time t5 on the network device side _A Representing the true channel response matrix for terminal device a. the calculation formula of the SRS receiving channel response matrix of the terminal device a at the network device side at the time t1 and t5 is as follows:

the channel is assumed to be substantially time invariant over the range t1 to t5, so that H _A0 (t1)≈H _A0 (t 5), the first channel response matrix for terminal device a can thus be derived by interference randomization:

although the SRS resource a0 and the SRS resource a2 are resources configured by the network device for the same terminal device, the antenna ports for transmitting the SRS resource a0 and the SRS resource a2 are different, and therefore are independent from each other in SRS reception channel response statistics, and thus

All residual interference components

Less than Inf (a) ₀ ) And Inf (a) ₂ ) I.e. after passing through a filtering algorithm

Comparing the receiving channel response matrix of the terminal device A at the network device side at the time t1 and t3

And

and is more accurate.

As still another example, as shown in fig. 6, the scenario corresponds to the scheme of configuring SRS resources as still another example in step S210 described above. The first terminal device and the second terminal device are both antenna selection terminals, the network device configures SRS resources with 2 AS attributes for the first terminal device, and the network device configures SRS resources with 3 SRS resources for the second terminal device, wherein 2 are SRS resources with AS attributes, and 1 is SRS resource with CB attributes. The network device configures the SRS transmission period of the first terminal device as a field Tsrs1, configures the SRS transmission period of the second terminal device as a field Tsrs2, and configures Tsrs1 as 2/3 of Tsrs 2.

The first terminal device may be terminal device a, terminal device B, or terminal device C in fig. 6, and the base sequence identifiers corresponding to terminal device a, terminal device B, and terminal device C are k1; the 2 SRS resources of terminal a are identified by A0 and A1, the 2 SRS resources of terminal B are identified by B0 and B1, and the 2 SRS resources of terminal C are identified by C0 and C1. The second terminal device may be terminal device a, terminal device b, or terminal device c in fig. 6, and the base sequence identifier corresponding to terminal device a, terminal device b, and terminal device c is k2; the 3 SRS resources of terminal device a are identified by a0, a1 and a2, the 3 SRS resources of terminal device b are identified by b0, b1 and b2, and the 3 SRS resources of terminal device c are identified by c0, c1 and c 2. The period Tsrs2 of sending SRS resources by terminal device a, terminal device B, and terminal device C is configured to be 6T, and the period Tsrs1 of sending SRS resources by terminal device a, terminal device B, and terminal device C is configured to be 9T.

As can be seen from fig. 6, the terminal a has different interference when colliding with each other at different times, and taking the resource A0 of the terminal a as an example, the resource A0 of the terminal a collides with each other at time t1, the resource c2 of the terminal c collides with each other at time t7, and the resource b1 of the terminal b collides with each other at time t13, so that the interference is different 3 times.

a second SRS reception channel response matrix indicating that terminal device a is at the network device side at time t5,

a third SRS reception channel response matrix, H, representing terminal device A at time t13 at the network device side _A Representing the true channel response matrix for terminal device a. the calculation formula of the SRS receiving channel response matrix of the terminal device a at the network device side at the time t1, t7 and t15 is as follows:

assuming that the channel is substantially time invariant over the range t1 to t13, thus H _A0 (t1)≈H _A0 (t 13), a second channel response matrix for terminal device a may thus be derived by interference randomization:

the resource a0, the resource c2 and the resource b1 are SRS resources of different terminal devices, and channels of different terminal devices are different, so that the SRS receiving channel response statistics are independent of each other, and therefore

Residual interfering components of

Less than Inf (a) ₀ )，Inf(c ₂ ) And Inf (b) ₁ ) I.e. after passing through a filtering algorithm

Compared with the SRS receiving channel response matrix of the terminal device A at the network device side at the time t1, t7 and t13

And

and is more accurate.

Based on the scheme, the first terminal equipment is interfered by different SRS at different moments, so that the network equipment can obtain more accurate channel estimation through a filtering algorithm, and the performance of the system is effectively improved.

It should be understood that, when the channel response matrix is calculated, SRS reception channel response matrices at more time points may also be obtained, which is not an example herein, and the application is not limited to the above filtering algorithm, nor to the specific values of the weighting coefficients in the above filtering algorithm.

It should be noted that the execution subject illustrated in fig. 2 and fig. 3 is only an example, and the execution subject may also be a chip, a chip system, or a processor supporting the execution subject to implement the method 200 and the method 300, which is not limited in this application.

Method embodiments of the present application are described above with reference to the drawings, and apparatus embodiments of the present application are described below. It is understood that the description of the method embodiments and the description of the apparatus embodiments may correspond to each other, and therefore, reference may be made to the foregoing method embodiments for parts that are not described.

It is to be understood that, in the foregoing method embodiments, the method and the operation implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) applicable to the network device, and the method and the operation implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) applicable to the terminal device.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that each network element, for example, the transmitting end device or the receiving end device, includes a corresponding hardware structure and/or software module for performing each function in order to implement the above functions. Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the functional modules may be divided according to the above method example for the transmitting end device or the receiving end device, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and another division manner may be available in actual implementation. The following description will be given by taking an example in which each function module is divided for each function.

Fig. 7 is a schematic block diagram of a communication device according to an embodiment of the present application. The communication device 700 comprises a transceiving unit 710 and a processing unit 720. The transceiving unit 710 may communicate with the outside, and the processing unit 720 is configured to perform data processing. The transceiving unit 710 may also be referred to as a communication interface or a communication unit.

The communication apparatus 700 may be a terminal device, wherein the transceiver 710 is configured to perform operations of receiving or transmitting by the terminal device in the foregoing method embodiments, and the processing unit 720 is configured to perform operations of processing inside the terminal device in the foregoing method embodiments.

In one design, the transceiver unit 710 is configured to receive resource configuration information sent by a network device, where the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel sounding reference signal, SRS, resource, and a period during which the first terminal device sends SRS; the first terminal device and the second terminal device belong to the same cell, and the second terminal device corresponds to the second base sequence identifier. The transceiver unit 710 is configured to send the SRS to the network device, where the SRS is carried on the SRS resource.

Optionally, the number of SRS resources of the first terminal device and the period in which the first terminal device transmits the SRS are different from those of the second terminal device, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the second SRS resource at the first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the third SRS resource at the second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier.

In the scheme, the number of the SRS resources of the first terminal equipment and the second terminal equipment is different, and the SRS sending periods of the first terminal equipment and the second terminal equipment are also different, so that the SRS resources of the first terminal equipment are respectively the same as the time-frequency domain positions of the second SRS resources and the third SRS resources, the SRS interference of the first terminal equipment at different moments is different, and the effect of randomizing the SRS interference in a cell is achieved.

Exemplarily, the number of SRS resources of the first terminal device is 1, and the number of SRS resources of the second terminal device is 2; or the number of SRS resources of the first terminal device is 2, and the number of SRS resources of the second terminal device is 4. It should be understood that in both cases the period of SRS transmission by the first terminal device is 1/2 of the period of SRS transmission by the second terminal device.

Optionally, the number of SRS resources of the first terminal device and the period of SRS transmission by the first terminal device are 2/3 of that of the second terminal device.

Optionally, the transceiver unit 710 is specifically configured to receive a radio resource control RRC signaling sent by a network device, where the RRC signaling includes the resource configuration information.

Optionally, the communication device 700 may further include a storage unit, which may be used to store instructions or/and data, and the processing unit 720 may read the instructions or/and data in the storage unit.

It is also to be understood that the transceiving unit 710 in the terminal device may correspond to the transceiver 920 in the terminal device shown in fig. 9, and the processing unit 720 in the terminal device may correspond to the processor in the terminal device shown in fig. 9.

It is further understood that the transceiving unit 710 in the terminal device may be implemented by a communication interface (e.g. a transceiver or an input/output interface), for example, may correspond to an antenna and a control circuit in the terminal device shown in fig. 9, that the processing unit 720 in the terminal device may be implemented by at least one processor, for example, may correspond to a processor in the terminal device shown in fig. 9, and that the processing unit 720 in the terminal device may also be implemented by at least one logic circuit.

Optionally, the terminal device may further include a storage unit, where the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.

Fig. 8 is a schematic block diagram of another communication device provided in an embodiment of the present application. The communication device 800 includes a transceiving unit 810 and a processing unit 820. The transceiving unit 810 can communicate with the outside, and the processing unit 820 is used for data processing. The transceiving unit 810 may also be referred to as a communication interface or a communication unit.

The communication apparatus 800 may be a network device, wherein the transceiving unit 810 is configured to perform operations of receiving or transmitting by the network device in the foregoing method embodiment, and the processing unit 820 is configured to perform operations of processing inside the network device in the foregoing method embodiment.

Optionally, the communication apparatus 800 may further include a storage unit, which may be configured to store instructions or/and data, and the processing unit 820 may read the instructions or/and data in the storage unit.

In one design, the transceiver unit 810 is configured to send resource configuration information to a first terminal device, where the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel sounding reference signal, SRS, resource, and a period in which the first terminal device sends SRS; the first terminal device and the second terminal device belong to the same cell, and the second terminal device corresponds to the second base sequence identifier. The transceiver unit 810 is further configured to receive an SRS from the first terminal device, where the SRS is carried on the SRS resource.

Optionally, the terminal devices to which the second SRS resource and the third SRS resource belong are different, or the terminal devices to which the second SRS resource and the third SRS resource belong are the same, but antenna ports of the second SRS resource and the third SRS resource are different.

Optionally, the processing unit 820 is configured to obtain an SRS reception channel response matrix at a plurality of time instants, where the plurality of time instants includes the first time instant and the second time instant; and performing weighted average on the SRS receiving channel response matrixes at the multiple moments to obtain a channel response matrix of the first terminal equipment.

Optionally, the processing unit 820 is specifically configured to obtain a first SRS receiving channel response matrix at the first time and a second SRS receiving channel response matrix at the second time; and performing weighted average on the first SRS receiving channel response matrix and the second SRS receiving channel response matrix to obtain a first channel response matrix of the first terminal equipment.

In another implementable manner, the number of SRS resources of the first terminal device and the period of SRS transmission by the first terminal device is 2/3 of that of the second terminal device.

Optionally, the processing unit 820 is specifically configured to obtain a first SRS reception channel response matrix at a first time, a second SRS reception channel response matrix at a second time, and a third SRS reception channel response matrix at a third time; and carrying out weighted average on the first SRS receiving channel response matrix, the second SRS receiving channel response matrix and the third SRS receiving channel response matrix to obtain a second channel response matrix of the first terminal equipment.

Optionally, the transceiver unit 810 is specifically configured to send a radio resource control RRC signaling to the first terminal device, where the RRC signaling includes the resource configuration information.

Optionally, the network device may further include a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.

It is further understood that the transceiving unit 810 in the network device may be implemented by a communication interface (e.g., a transceiver or an input/output interface), for example, may correspond to the transceiver 1030 in the network device shown in fig. 10, the processing unit 820 in the network device may be implemented by at least one processor, for example, may correspond to the processor 1010 in the network device shown in fig. 10, and the processing unit 820 in the network device may be implemented by at least one logic circuit.

Fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The apparatus 700 may be configured in the terminal device 900, or the apparatus 700 itself may be the terminal device 900. Alternatively, the terminal device 900 may perform the actions performed by the terminal device in the method 200 described above.

For convenience of explanation, fig. 9 shows only main components of the terminal device. As shown in fig. 9, the apparatus 900 includes a processor, a memory, a control circuit, an antenna, and an input-output device.

The processor is mainly configured to process a communication protocol and communication data, control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device to perform the actions described in the above embodiment of the method for indicating a transmission precoding matrix. The memory is mainly used for storing software programs and data, for example, the codebook described in the above embodiments. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by users and outputting data to the users.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data.

Those skilled in the art will appreciate that fig. 9 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories, and the processors and memories may be disposed separately or collectively. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

For example, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole terminal device, executing the software program, and processing the data of the software program. The processor in fig. 9 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit with transceiving functions may be regarded as the transceiving unit 910 of the terminal device 900, and the processor with processing function may be regarded as the processing unit 920 of the terminal device 900. As shown in fig. 9, the terminal apparatus 900 includes a transceiving unit 910 and a processing unit 920. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Optionally, a device for implementing a receiving function in the transceiving unit 910 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 910 may be regarded as a transmitting unit, that is, the transceiving unit includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

Fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application.

As shown in fig. 10, an embodiment of the present application further provides a communication device 1000. The communication apparatus 1000 may be a network device. The apparatus 800 may be configured in the communication apparatus 1000, or the apparatus 800 itself may be the communication apparatus 1000. Alternatively, the communications apparatus 1000 can perform the actions performed by the network device in the

methods

200 or 300.

The communication device 1000 comprises a processor 1010, the processor 1010 being coupled to a memory 1020, the memory 1020 being adapted to store computer programs or instructions or/and data, the processor 1010 being adapted to execute the computer programs or instructions and/or data stored by the memory 1020 such that the method in the above method embodiments is performed.

Optionally, the communication device 1000 includes one or more processors 1010.

Optionally, as shown in fig. 10, the communication apparatus 1000 may further include a memory 1020.

Optionally, the communication apparatus 1000 may include one or more memories 1020.

Alternatively, the memory 1020 may be integrated with the processor 1010 or provided separately.

Optionally, as shown in fig. 10, the communication device 1000 may further include a transceiver 1030, and the transceiver 1030 is used for receiving and/or transmitting signals. For example, processor 1010 may be configured to control transceiver 1030 to receive and/or transmit signals.

As one solution, the communication apparatus 1000 is configured to implement the operations performed by the network device in the above method embodiments. For example, the processor 1010 is configured to implement the operations performed by the network device in the above method embodiments, and the transceiver 1030 is configured to implement the operations performed by the network device in the above method embodiments for receiving or transmitting. The processing unit in the apparatus 800 may be the processor in fig. 10, and the transceiving unit may be the transceiver in fig. 10. The operations executed by the processor 1010 may specifically refer to the above description of the processing unit, and the operations executed by the transceiver 1030 may refer to the description of the transceiving unit, which is not described herein again.

Embodiments of the present application also provide a computer-readable storage medium, on which computer instructions for implementing the method performed by the terminal device or the network device in the foregoing method embodiments are stored.

For example, the computer program, when executed by a computer, causes the computer to implement the method performed by the terminal device or the network device in the above-described method embodiments.

Embodiments of the present application further provide a computer program product including instructions, where the instructions, when executed by a computer, cause the computer to implement the method performed by the terminal device or the network device in the foregoing method embodiments.

For the explanation and beneficial effects of the related content in any one of the above-mentioned apparatuses, reference may be made to the corresponding method embodiments provided above, and details are not repeated here.

It should be understood that the processor referred to in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM). For example, RAM can be used as external cache memory. By way of example and not limitation, RAM may include the following forms: static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), synchronous DRAM (ESDRAM), and SDRAM (synchronous dynamic random access memory).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another at a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. For example, the computer may be a personal computer, a server, or a network appliance, among others. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium such as a Solid State Disk (SSD), among others. For example, the aforementioned available media may include, but are not limited to: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims and the specification.

Claims

1. A method for resource allocation, comprising:

sending resource configuration information to a first terminal device, wherein the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource, and a period for sending an SRS by the first terminal device;

the first terminal device and the second terminal device belong to the same cell, and the second terminal device corresponds to a second base sequence identifier;

receiving the SRS from the first terminal device, wherein the SRS is carried on the SRS resource.

2. The method of claim 1, wherein the number of SRS resources of the first terminal device and the period in which the first terminal device transmits the SRS are different from those of the second terminal device, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the second SRS resource at a first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of the third SRS resource at a second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier.

3. The method of claim 2, wherein the number of SRS resources of the first terminal device and the periodicity with which the SRS is transmitted by the first terminal device is 1/2 of that of the second terminal device.

4. The method of claim 3, wherein the number of SRS resources of the first terminal device is 1 or 2.

5. The method of claim 2, wherein the number of SRS resources of the first terminal device and the periodicity with which the SRS is transmitted by the first terminal device is 2/3 of that of the second terminal device.

6. The method of claim 5, wherein the number of SRS resources of the first terminal device is 2.

7. The method according to any one of claims 2 to 6, further comprising:

obtaining an SRS receiving channel response matrix at a plurality of moments, wherein the plurality of moments comprise the first moment and the second moment;

and performing weighted average on the SRS receiving channel response matrixes at the multiple moments to obtain a channel response matrix of the first terminal equipment.

8. The method according to any of claims 1 to 7, wherein the sending resource configuration information to the first terminal device comprises:

and sending Radio Resource Control (RRC) signaling to the first terminal equipment, wherein the RRC signaling comprises the resource configuration information.

9. A method for resource allocation, comprising:

receiving resource configuration information from a network device, wherein the resource configuration information indicates a first base sequence identifier of the first terminal device, a channel Sounding Reference Signal (SRS) resource, and a period for sending an SRS by the first terminal device;

the first terminal equipment and the second terminal equipment belong to the same cell, and the second terminal equipment corresponds to a second base sequence identifier;

and sending the SRS to the network equipment, wherein the SRS is borne on the SRS resource.

10. The method of claim 9, wherein the number of SRS resources of the first terminal device and the period in which the first terminal device transmits the SRS are different from that of the second terminal device, the frequency domain position of a first SRS resource of the first terminal device is the same as that of a second SRS resource at a first time, the frequency domain position of the first SRS resource of the first terminal device is the same as that of a third SRS resource at a second time, and the terminal devices to which the second SRS resource and the third SRS resource belong correspond to the second base sequence identifier.

11. The method of claim 10, wherein the number of SRS resources of the first terminal device and the periodicity with which the SRS is transmitted by the first terminal device is 1/2 of that of the second terminal device.

12. The method of claim 11, wherein the number of SRS resources of the first terminal device is 1 or 2.

13. The method of claim 10, wherein the number of SRS resources of the first terminal device and the periodicity at which the SRS is transmitted by the first terminal device is 2/3 of the periodicity of the second terminal device.

14. The method of claim 13, wherein the number of SRS resources of the first terminal device is 2.

15. The method according to any of claims 9 to 14, wherein the receiving resource configuration information from a network device comprises:

receiving radio resource control, RRC, signaling from the network device, the RRC signaling including the resource configuration information.

16. A resource allocation apparatus, comprising:

means for implementing the method of any one of claims 1 to 8; or

Means for implementing the method of any one of claims 9 to 15.

17. An apparatus for resource configuration, the apparatus comprising a processor coupled to a memory, the memory storing instructions that, when executed by the processor,

cause the processor to perform the method of any one of claims 1 to 8, or

Causing the processor to perform the method of any one of claims 9 to 15.

18. A communication system, characterized in that the communication system comprises a network device for performing the method according to any of claims 1 to 8 and a terminal device for performing the method according to any of claims 9 to 15.

19. A computer-readable storage medium, having stored thereon a computer program which, when run on a computer,

cause the computer to perform the method of any one of claims 1 to 8, or

Causing the computer to perform the method of any one of claims 9 to 15.

20. A computer program product, characterized in that the computer program product comprises a computer program which, when being executed,

cause the computer to perform the method of any one of claims 1 to 8, or

Causing the computer to perform the method of any one of claims 9 to 15.