CN109150469B

CN109150469B - Reference signal indicating method, reference signal determining method and equipment

Info

Publication number: CN109150469B
Application number: CN201710459802.2A
Authority: CN
Inventors: 向铮铮; 罗俊; 刘瑾; 袁璞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2023-12-15
Anticipated expiration: 2037-06-16
Also published as: WO2018228286A1; CN109150469A

Abstract

The embodiment of the application provides a reference signal indication method, a reference signal determination method and reference signal determination equipment. The reference signal indication method comprises the following steps: the network equipment generates a reference signal indication message, wherein the reference signal indication message comprises scrambling code information, and the scrambling code information is used for indicating information used for scrambling the reference signal; the network device sends the reference signal indication message. In the embodiment of the application, the network equipment can scramble the reference signal based on various information, and compared with the prior art which can scramble the reference signal only based on the cell identification or the virtual cell identification, the network equipment can configure the reference signal more flexibly.

Description

Reference signal indicating method, reference signal determining method and equipment

Technical Field

The present application relates to the field of communications, and in particular, to a reference signal indication method, a reference signal determination method, and a device.

Background

Cell handover is an important process of a wireless network, and plays a very critical role in guaranteeing wireless communication quality of User Equipment (UE). In a wireless network, base stations of each cell transmit reference signals, UEs in the cell receive the reference signals transmitted by the base station of the cell and reference signals transmitted by the base stations of neighboring cells, and report the received reference signal quality information, such as RSRP, to the base station of the cell. The base station of the cell determines whether the UE is switched to other cells according to the information reported by the UE, for example, when the RSRP of the reference signal sent by the base station of the neighbor cell and received by the UE is larger than the RSRP of the reference signal sent by the base station of the cell, the base station can send a signaling to instruct the UE to switch to the neighbor cell and perform switching preparation with the base station of the neighbor cell and data migration of the UE, and the UE can perform switching confirmation with the base station of the neighbor cell and initiate initial access after receiving a switching instruction, and can start normal communication after successfully accessing the base station of the neighbor cell. Measurement of reference signals is a relatively important aspect in cell handover.

In the existing LTE system, a fixed reference signal is adopted for measurement, and the configuration of the reference signal is not flexible enough to meet the requirement of 5G multiple scenes, so that it is necessary to design a reference signal indication mechanism to solve the problem that the reference signal cannot be flexibly configured.

Disclosure of Invention

The embodiment of the invention provides a reference signal indicating method, a reference signal determining method and reference signal determining equipment, which can flexibly configure reference signals.

In a first aspect, an embodiment of the present invention provides a method for indicating a reference signal, where the method includes:

the network equipment generates a reference signal indication message, wherein the reference signal indication message comprises scrambling code information, and the scrambling code information is used for indicating information used for scrambling the reference signal; the network device sends the reference signal indication message.

In the embodiment of the invention, the network equipment can scramble the reference signal based on various information, and compared with the prior art which can scramble the reference signal only based on the cell identification or the virtual cell identification, the network equipment can configure the reference signal more flexibly.

In one possible design, the scrambling code information is used to indicate one of the following identifications: user equipment UE identity, virtual cell identity and cell identity.

Wherein, the UE identity may be one of the following identities: the method comprises the steps of a cell radio temporary identifier C-RNTI of the UE, a UE group identifier of a UE group where the UE is located and a dedicated identifier of the UE.

In another possible design, the scrambling code information includes one of user equipment UE identity indication information and virtual cell identity indication information, where the user equipment UE identity indication information is used to indicate a user equipment UE identity, and the virtual cell identity indication information is used to indicate a virtual cell identity.

In yet another possible design, the reference signal indication message includes a first field, which may be a redefined field, for example, a user equipment UE scrambling identity field (UE-scanlingidentity). The first field is used to indicate information used to scramble the reference signal.

Optionally, in another possible design of the foregoing, when the value of the first field indicates that the information for scrambling the CSI-RS by the network device is not the UE identifier of the user equipment, the information for scrambling the CSI-RS at this time may be either a cell identifier or a virtual cell identifier, and in this case, the information for scrambling the CSI-RS by the network device may be indicated by other fields in the reference signal indication message.

In one possible design, the reference signal indication message is RRC signaling.

In a second aspect, an embodiment of the present invention provides a reference signal determining method, including:

the terminal equipment receives a reference signal indication message, wherein the reference signal indication message comprises scrambling code information, and the scrambling code information is used for indicating information used for scrambling the reference signal; and the terminal equipment determines information used for scrambling the reference signal according to the reference signal indication message.

In the embodiment of the invention, the terminal equipment can determine the information used by the network equipment for scrambling the reference signal according to the received reference signal indication information, thereby determining the received reference signal and improving the flexibility of measuring through the reference signal.

In another possible design, the scrambling code information includes user equipment UE identity indication information and virtual cell identity indication information, where the user equipment UE identity indication information is used to indicate a user equipment UE identity, and the virtual cell identity indication information is used to indicate a virtual cell identity.

In a third aspect, an embodiment of the present invention provides a network device, which specifically implements a function corresponding to the method for indicating a reference signal provided in the first aspect. The functions may be implemented by hardware, or may be implemented by hardware executing a corresponding software program. The hardware and software include one or more unit modules corresponding to the above functions, and the unit modules may be software and/or hardware.

In one possible design, the network device includes:

a generation unit configured to generate a reference signal indication message including scrambling code information for indicating information used for scrambling the reference signal;

and the sending unit is used for sending the reference signal indication message.

In one possible design, the network device includes:

and a processor configured to generate a reference signal indication message, where the reference signal indication message includes scrambling code information, and the scrambling code information is used to indicate information used to scramble the reference signal.

And the transmitter is used for transmitting the reference signal indication message.

In a fourth aspect, an embodiment of the present invention further provides a terminal device, which specifically implements a function corresponding to the method for determining a reference signal provided in the second aspect. The functions may be implemented by hardware, or may be implemented by hardware executing a corresponding software program. The hardware and software include one or more unit modules corresponding to the above functions, and the unit modules may be software and/or hardware.

In one possible design, the terminal device includes:

A receiving unit configured to receive a reference signal indication message, where the reference signal indication message includes scrambling code information, and the scrambling code information is used to indicate information used to scramble the reference signal;

and the determining unit is used for determining information used for scrambling the reference signal according to the reference signal indication message.

In one possible design, the terminal device includes:

a receiver configured to receive a reference signal indication message, where the reference signal indication message includes scrambling code information, and the scrambling code information is used to indicate information used to scramble the reference signal;

and the processor is used for determining information used for scrambling the reference signal according to the reference signal indication message.

In a fifth aspect the present application provides a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the method of the above aspects.

In a sixth aspect the application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

FIG. 1 is a schematic diagram of a system to which embodiments of the invention are applied;

fig. 2 is a schematic diagram of mapping CSI-RS signals on time-frequency resources according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart of a reference signal indication method in an embodiment of the invention;

fig. 4 is a schematic diagram of a logic structure of a network device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a logic structure of a terminal device in an embodiment of the present invention;

fig. 6 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware structure of a terminal device in an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 shows a schematic diagram of a system to which an embodiment of the invention is applied. As shown in fig. 1, system 100 may include network device 102 and terminal devices 104, 106, 108, 110, 112, and 114, where the network device and the terminal devices are connected wirelessly. It should be understood that fig. 1 is only described by taking an example in which the system includes one network device, but embodiments of the present invention are not limited thereto, for example, the system may include more network devices; similarly, the system may also include more terminal devices. It should also be understood that the system may also be referred to as a network, and embodiments of the present invention are not limited in this regard.

The present description describes various embodiments in connection with a terminal device. A terminal device may also refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

By way of example, and not limitation, in embodiments of the present invention, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

The present specification describes various embodiments in connection with a network device. The network device may be a device for communicating with a terminal device, the network device may be a base station (Base Transceiver Station, BTS) in global mobile communications (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), may be a base station (NodeB, NB) in a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, may be a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc.

In addition, in the embodiment of the present invention, the network device provides services for a cell, and the terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services. In addition, the cell may also be a super cell (Hypercell).

In a 5G NR network architecture, the present document exemplifies, but is not limited to, a network device, which may be divided into a Centralized Unit (CU) and a plurality of transmission and reception points (Transmission Reception Point, TRP)/Distributed Units (DUs), i.e. bandwidth-based units (Bandwidth Based Unit, BBU) of the network device are reconfigured as DU and CU functional entities. It should be noted that the form and number of the centralized units and TRP/DUs do not constitute limitations of the embodiments of the present application.

CUs can handle wireless higher layer protocol stack functions, such as radio resource control (Radio Resource Control, RRC) layer, packet data convergence layer protocol (Packet Data Convergence Protocol, PDCP) layer, etc., and can even support a partial core network function sinking to the access network, termed edge computing network, capable of meeting the higher demands of future communication networks on network latency for emerging services such as video, network purchase, virtual/augmented reality.

The DU can mainly process the physical layer function and the layer 2 function with higher real-time requirement, and considering the transmission resources of the wireless remote unit (Radio Remote Unit, RRU) and the DU, part of the physical layer function of the DU can be moved up to the RRU, and the DU with miniaturization of the RRU can be combined with the RRU even more aggressively.

CU can centralized arrangement, DU arrangement depends on actual network environment, core urban area, telephone traffic density is higher, station spacing is smaller, computer lab resource limited area such as university, large-scale performance stadium etc., DU can centralized arrangement, and telephone traffic is sparse, station spacing is larger etc. area such as suburb county, mountain area etc. DU can adopt distributed arrangement mode.

In the embodiment of the present invention, the reference signal may be a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a discovery reference signal (Discovery Reference Signal, DRS), or other reference signals that may be used for mobility measurement, which is not limited herein. It should be noted that the above reference signals may also be used for beam management. The embodiment of the invention will be described by taking the CSI-RS as an example, and the application of the CSI-RS in LTE will be described below.

The CSI-RS is an important reference signal in the LTE network and is mainly used for acquiring the CSI by the UE. In an LTE network, CSI-RS can transmit on a maximum of 32 antenna ports (antenna ports), corresponding to an antenna port number p=15, 16, 46. Regarding antenna ports, the spatial dimension in LTE is measured in "layers" and implemented using multi-antenna transmission and multi-antenna reception techniques, where each layer corresponds to an active data stream and is mapped to a logical antenna port, and each antenna port corresponds to a time-frequency resource grid and has a corresponding reference signal for channel estimation and coherent demodulation at the receiving end.

The sequence of the CSI-RS in the frequency domain is defined as follows:

wherein n is _s Is a slot number in a radio frame, l is a number of an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol in a slot, c (i) is a pseudo-random sequence and is passed at the beginning of each OFDM symbol by c _init Initialization is performed. c _init Is defined as follows:

wherein the critical parameter isThe value range of the cell identifier or the virtual cell identifier is 0-503. An LTE base station periodically transmits CSI-RS signals, where the periodicity may be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, and CSI-RS transmitted on different antenna ports may occupy different time-frequency resources, and fig. 2 shows an illustration of mapping of CSI-RS on a physical resource block pair, where R ₁₅ And R is ₁₇ Representing CSI-RS signals on antenna port 15 and antenna port 17, respectively.

In LTE, a network device uses a cell identifier or a virtual cell identifier to scramble the CSI-RS and indicates the CSI-RS through a scrambling code identifier field (scrambling identity-r 11) in radio resource control (Radio Resource Control, RRC) signaling, i.e., when the scrambling code identifier field in RRC signaling has a value of 0-503, the network device uses the virtual cell identifier to scramble the CSI-RS, e.g., when the scrambling code identifier field has a value of 102 (i.e. ) When the current CSI-RS scrambling code identification is 102; when the scrambling code identification field does not exist in the RRC signaling, the network equipment adopts the cell identification to scramble the CSI-RS, the current scrambling code identification of the CSI-RS is the cell identification, and the acquisition process of the cell identification can refer to the prior art and is not repeated herein.

The above description of CSI-RS in LTE may be used as an addition to the embodiments of the present invention. In the embodiment of the invention, the network equipment can also scramble the CSI-RS by adopting the UE identifier, and in order to use the CSI-RS to carry out mobility measurement, the network equipment needs to indicate scrambling information of the CSI-RS so that the terminal equipment can correctly receive the CSI-RS, thereby completing measurement and reporting. The embodiment of the invention provides a reference signal indicating method, a reference signal determining method and reference signal determining equipment, which can improve the flexibility of reference signal configuration.

The reference signal indication method provided by the embodiment of the invention will be described in detail.

Fig. 3 is a schematic flow chart of a reference signal indicating method according to an embodiment of the present invention. The network device in fig. 3 may be the network device 102 in fig. 1; the terminal devices may be the terminal devices 104, 106, 108, 110, 112, and 114 in fig. 1. In the specific implementation process, the number of network devices and terminal devices may not be limited to the examples of this embodiment or other embodiments, and will not be described in detail below.

The network device generates 310 a reference signal indication message including scrambling code information indicating information used to scramble the reference signal.

In the embodiment of the invention, the network equipment can scramble the CSI-RS by adopting the cell identifier, the virtual cell identifier and the UE identifier.

Alternatively, the UE identity may be a cell radio temporary identity (C-RNTI) of the UE, e.g.: in an LTE network, a UE identifies a C-RNTI that may be assigned to the UE for a base station of each cell.

Optionally, the UE identity may also be a UE specific identity, for example, in a UCNC network, the UE identification information may be a UE specific identity in a super cell.

Optionally, the UE identity may also be a UE group identity of a UE group in which the UE is located. For example, each cell base station may group UEs of the own cell and assign corresponding UE group identities. The criteria for grouping UEs may be, without limitation, grouping UEs by geographic location, traffic type, or other information of the UE.

In a specific implementation process, the scrambling code information may be a field in the reference signal indication message, and the network device indicates information used for scrambling the CSI-RS by giving different values to the field, where the information used for scrambling the CSI-RS is one of a UE identity, a virtual cell identity, and a cell identity of the user equipment. For example, the field may be similar to a scrambling code identification field (scrambling identity-r 11) in LTE, and when the value of the field is a first value, the information used for scrambling CSI-RS is a cell virtual identity, and the first value may be any integer from 0 to 503; when the value of the field is a second value, the information used for scrambling the CSI-RS is the UE identity, and the second value may be 504 or other values different from the first value; when the value of the field is a third value, the information used for scrambling the CSI-RS is a cell identity, and the third value may be 505 or another value different from the first value and the second value.

Accordingly, after receiving the reference signal indication message, the terminal device may determine information used for scrambling the CSI-RS according to the scrambling information in the reference signal indication message. Specifically, the terminal device determines information used for scrambling the CSI-RS by judging the value of a field corresponding to the scrambling information. For example, when the terminal device determines that the value of the field is the first value, it may determine that the information used for scrambling by the CSI-RS is the cell virtual identifier, where the first value may be any integer from 0 to 503. When the terminal device determines that the value of the field is a second value, it may determine that the information used for scrambling the CSI-RS is a cell identifier, where the second value may be 504, or another value different from the first value. When the terminal device determines that the value of the field is a third value, it may determine that the information used for scrambling the CSI-RS is a cell identifier, where the third value may be 505 or another value different from the first value and the second value.

In another possible design, the scrambling code information includes one of user equipment UE identity indication information for indicating a user equipment UE identity and virtual cell identity indication information for indicating a virtual cell identity.

In a specific implementation process, the scrambling code information may be a field in the reference signal indication message, and the network device indicates information included in the scrambling code information by assigning different values to the field. For example, the field may be similar to a scrambling code identification field (scrambling identity-r 11) in LTE, when the value of the field is a first value, the scrambling code information is virtual cell identification indication information, where the indication information is used to indicate virtual cell identification, that is, information used to scramble CSI-RS is virtual cell identification, where the first value may be any integer from 0 to 503; when the value of the field is a second value, the scrambling code information is user equipment UE identification indication information, where the indication information is used to indicate the identification of the user equipment UE, that is, the information used to scramble the CSI-RS is the user equipment UE identification, where the second value may be 504 or other values different from the first value.

It should be noted that, when the above scrambling information includes neither UE identity indication information nor virtual cell identity indication information, in this case, the value of the field corresponding to the scrambling information is null or there is no field corresponding to the scrambling information, and at this time, the information used by the network device to scramble the CSI-RS is the cell identity.

Accordingly, after receiving the reference signal indication message, the terminal device may determine information used for scrambling the CSI-RS according to the scrambling information in the reference signal indication message. The specific determining process may refer to the above description, and unlike the above description, when the field value corresponding to the scrambling code information is null or there is no field corresponding to the scrambling code information, the terminal device may determine that the information used for scrambling the CSI-RS is a cell identifier.

In a specific implementation process, the network device indicates information used for scrambling the CSI-RS by giving different values to the first field. For example, the first field may be a boolean variable, and when the variable is true, information used by the network device to scramble the CSI-RS is the user equipment UE identity; when the variable is false, the information used by the network device to scramble the CSI-RS is a cell identity. Or when the variable is false, the information used by the network equipment for scrambling the CSI-RS is the User Equipment (UE) identifier; when the variable is true, the information used by the network device to scramble the CSI-RS is the cell identity. It should be noted that, at this time, the network device uses the cell identifier and the UE identifier to scramble the CSI-RS. In this case, the flexibility of configuring the reference signal by the network device is ensured, and the overhead in the reference signal indication process is reduced.

Correspondingly, after receiving the reference signal indication message, the terminal equipment determines information used for scrambling the CSI-RS according to a first field in the reference signal indication message. Specifically, the terminal device determines information used for scrambling the CSI-RS by judging whether the boolean variable corresponding to the first field is true or false. For example, when the boolean variable is judged to be true, it can be determined that the information used for scrambling the CSI-RS is the user equipment UE identity; when the Boolean variable is judged to be false, the information used for scrambling the CSI-RS can be determined to be the cell identification. Or when the Boolean variable is judged to be false, the information used for scrambling the CSI-RS can be determined to be the User Equipment (UE) identifier; when the Boolean variable is judged to be false, the information used for scrambling the CSI-RS can be determined to be the cell identification.

Optionally, in the foregoing still another possible design, when the value of the first field indicates that the information for scrambling CSI-RS by the network device is not the UE identity, the information for scrambling CSI-RS may be either a cell identity or a virtual cell identity, that is, the information for scrambling CSI-RS needs to be further indicated at this time, where the information for scrambling CSI-RS by the network device may be indicated by other fields in the reference signal indication message, for example, may be indicated by a scrambling code identification field (scrambling identity-r 11) in LTE, and a specific indication procedure is the same as the scrambling code identification field indication procedure in LTE, which is described in LTE above, and will not be repeated herein.

It should be noted that, in all the possible designs, the first value range may be determined according to practical needs, and is not limited to the exemplary value range, for example, the first value range may be 0 to 1000. Similarly, the second value and the third value may be determined according to actual needs, and are not limited to the values exemplified above.

320, the network device sends the reference signal indication message.

After the network device generates the reference signal indication message, the reference signal indication message is sent to the terminal device, and optionally, the reference signal indication message may be RRC signaling.

And 330, the terminal equipment determines information used for scrambling the reference signal according to the reference signal indication message.

The information used by the terminal device to determine the scrambling code for the reference signal according to the reference signal indication message is already described in detail in step 310, and will not be described in detail here.

It can be seen that, in the embodiment of the present invention, the network device may scramble the reference signal based on various information, and send the information for scrambling the reference signal to the terminal device through the reference signal indication message, so that the terminal device can correctly receive the reference signal. Compared with the prior art that the reference signals can only be scrambled based on the cell identification or the virtual cell identification, the network equipment can configure the reference signals more flexibly.

It should be further specifically noted that the reference signal in the embodiment of the present invention may also be used for beam management, and when the reference signal is used for beam management, the indication and determination manners are the same as those used for mobility measurement.

Fig. 4 is a schematic diagram of a logic structure of a network device 400 according to an embodiment of the present invention. In a particular implementation, the network device may be, for example, but not limited to, network device 102 in FIG. 1. As shown in fig. 4, the network device 400 includes a generation module 410 and a transmission module 420.

The generating module 410 is configured to generate a reference signal indication message, where the reference signal indication message includes scrambling code information, and the scrambling code information is used to indicate information used for scrambling a reference signal;

the sending module 420 is configured to send the reference signal indication message.

The network device 400 is configured to perform steps corresponding to the network device in the method embodiment. The relevant technical features related to the network device 400 have been described in detail above in connection with the accompanying drawings, such as, but not limited to, fig. 3, and thus are not repeated here.

Fig. 5 is a schematic diagram of a logic structure of a terminal device 500 according to an embodiment of the present invention. In a particular implementation, the terminal devices may be, for example, but not limited to, terminal devices 104, 106, 108, 110, 112, and 114 in FIG. 1. As shown in fig. 5, the terminal device 500 includes a receiving module 510 and a determining module 520.

The receiving module 510 is configured to receive a reference signal indication message, where the reference signal indication message includes scrambling code information, and the scrambling code information is used to indicate information used for scrambling the reference signal;

the determining module 520 is configured to determine information used for scrambling the reference signal according to the reference signal indication message.

The terminal device 500 is configured to perform steps corresponding to the terminal device in the method embodiment. The relevant technical features related to the terminal device 500 have been described in detail above in connection with the accompanying drawings, such as, but not limited to, fig. 3, and thus are not repeated here.

Fig. 6 is a schematic diagram of a hardware architecture of a network device 600 according to an embodiment of the present invention. As shown in fig. 6, network device 600 includes a processor 602, a transceiver 604, a plurality of antennas 606, a memory 608, an I/O (Input/Output) interface 610, and a bus 612. Transceiver 604 further includes a transmitter 6042 and a receiver 6044, and memory 608 is further used to store instructions 6082 and data 6084. In addition, the processor 602, transceiver 604, memory 608, and I/O interface 610 are communicatively coupled to each other via a bus 612, with a plurality of antennas 606 coupled to the transceiver 604.

The processor 602 may be a general-purpose processor such as, but not limited to, a central processing unit (Central Processing Unit, CPU), or a special-purpose processor such as, but not limited to, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA), or the like. Furthermore, the processor 602 may be a combination of multiple processors. In particular, in the solution provided in the embodiment of the present invention, the processor 602 may be configured to perform, for example, the operation performed by the generating module 410 in the network device 400 shown in fig. 4 and the step 310 in fig. 3. The processor 602 may be a processor specifically designed to perform the steps and/or operations described above, or may be a processor that performs the steps and/or operations described above by reading and executing instructions 6062 stored in the memory 608, and the processor 602 may require the use of data 6084 in performing the steps and/or operations described above.

The transceiver 604 includes a transmitter 6042 and a receiver 6044, wherein the transmitter 6042 is configured to transmit signals via at least one antenna among the plurality of antennas 606. The receiver 6044 is configured to receive signals via at least one antenna among the plurality of antennas 606. In particular, in the solution provided in the embodiment of the present invention, the transmitter 6042 may be specifically configured to perform, for example, step 320 in fig. 3 and the operation performed by the transmitting module 420 in the network device 400 shown in fig. 4, through at least one antenna among the plurality of antennas 606.

The Memory 608 may be various types of storage media, such as random access Memory (Random Access Memory, RAM), read Only Memory (ROM), nonvolatile RAM (Non-Volatile RAM, NVRAM), programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (Electrically Erasable PROM, EEPROM), flash Memory, optical Memory, registers, and the like. The memory 608 is specifically configured to store instructions 6082 and data 6084, and the processor 602 may perform the steps and/or operations described above by reading and executing the instructions 6082 stored in the memory 608, which may require the data 6084 to be used in performing the steps and/or operations.

The I/O interface 610 is used to receive instructions and/or data from and output instructions and/or data to a peripheral device.

It should be noted that in the specific implementation, the network device 600 may also include other hardware devices, which are not listed here.

Fig. 7 is a schematic diagram of a hardware structure of a terminal device 700 according to an embodiment of the present invention. As shown in fig. 7, device 700 includes a processor 702, a transceiver 704, a plurality of antennas 706, a memory 708, an I/O (Input/Output) interface 710, and a bus 712. The transceiver 704 further includes a transmitter 7042 and a receiver 7044, and the memory 708 is further configured to store instructions 7082 and data 7084. In addition, the processor 702, the transceiver 704, the memory 708, and the I/O interface 710 are communicatively coupled to each other via a bus 712, and the plurality of antennas 706 are coupled to the transceiver 704.

The processor 702 may be a general-purpose processor such as, but not limited to, a central processing unit (Central Processing Unit, CPU), or a special-purpose processor such as, but not limited to, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA), or the like. Furthermore, the processor 702 may also be a combination of multiple processors. In particular, in the technical solution provided in the embodiment of the present invention, the processor 702 is configured to perform, for example, the step 330 in fig. 3 and the operation performed by the determining module 520 in the terminal device 500 shown in fig. 5. The processor 702 may be a processor specifically designed to perform the steps and/or operations described above, or may be a processor that performs the steps and/or operations described above by reading and executing instructions 7082 stored in the memory 708, and the processor 702 may require the use of data 7084 in performing the steps and/or operations described above.

The transceiver 704 includes a transmitter 7042 and a receiver 7044, wherein the transmitter 7042 is configured to transmit signals through at least one antenna among a plurality of antennas 706. The receiver 7044 is configured to receive signals via at least one antenna among the plurality of antennas 706. In particular, in the technical solution provided in the embodiment of the present invention, the receiver 7044 may be specifically configured to perform, through at least one antenna among the multiple antennas 706, for example, an operation performed by the receiving module 510 in the terminal device 500 shown in fig. 5.

The Memory 708 may be various types of storage media, such as random access Memory (Random Access Memory, RAM), read Only Memory (ROM), nonvolatile RAM (Non-Volatile RAM, NVRAM), programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (Electrically Erasable PROM, EEPROM), flash Memory, optical Memory, registers, and the like. The memory 708 is specifically configured to store instructions 7082 and data 7084, and the processor 702 may perform the steps and/or operations described above by reading and executing the instructions 7082 stored in the memory 708, and the data 7084 may be needed in performing the steps and/or operations described above.

The I/O interface 710 is used to receive instructions and/or data from and output instructions and/or data to the peripheral device.

It should be noted that in the specific implementation, the terminal device 700 may also include other hardware devices, which are not listed here.

It should be noted that, in the above embodiments, the implementation may be implemented in whole or in part 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, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. 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 a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

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

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

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

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

Claims

1. A method of reference signal indication, the method comprising:

the network equipment scrambles the reference signal, and the information used for scrambling the reference signal comprises one of a User Equipment (UE) identifier, a virtual cell identifier and a cell identifier, wherein the UE identifier is one of the following identifiers: a cell radio temporary identifier C-RNTI of the UE, a UE group identifier of a UE group where the UE is located and a dedicated identifier of the UE;

the network device generates a reference signal indication message, wherein the reference signal indication message comprises scrambling code information, the scrambling code information is a value of a field in the reference signal indication message, the scrambling code information is used for indicating the virtual cell identifier when the value of the field is a first value, the first value is the same as the virtual cell identifier, the scrambling code information is used for indicating the UE identifier when the value of the field is a second value, and the scrambling code information is used for indicating the cell identifier when the value of the field is a third value, and the first value, the second value and the third value are different;

The network device sends the reference signal indication message.

2. The method of claim 1, the reference signal indication message is radio resource control, RRC, signaling.

3. A method of reference signal determination, the method comprising:

the method comprises the steps that a terminal device receives a reference signal indication message, the reference signal indication message comprises scrambling code information, the scrambling code information is a value of a field in the reference signal indication message, when the value of the field is a first value, the scrambling code information is used for indicating a virtual cell identifier, the first value is the same as the virtual cell identifier, when the value of the field is a second value, the scrambling code information is used for indicating a User Equipment (UE) identifier, when the value of the field is a third value, the scrambling code information is used for indicating the cell identifier, the first value, the second value and the third value are different, and the UE identifier is one of the following identifiers: a cell radio temporary identifier C-RNTI of the UE, a UE group identifier of a UE group where the UE is located and a dedicated identifier of the UE;

and the terminal equipment determines information used for scrambling the reference signal according to the value of the field.

4. The method of claim 3, the reference signal indication message is radio resource control, RRC, signaling.

5. A network device, comprising:

the generating unit is used for scrambling the reference signal, and the information used for scrambling the reference signal comprises one of a User Equipment (UE) identifier, a virtual cell identifier and a cell identifier, wherein the UE identifier is one of the following identifiers: a cell radio temporary identifier C-RNTI of the UE, a UE group identifier of a UE group where the UE is located and a dedicated identifier of the UE; generating a reference signal indication message, wherein the reference signal indication message comprises scrambling code information, the scrambling code information is a value of a field in the reference signal indication message, the scrambling code information is used for indicating the virtual cell identifier when the value of the field is a first value, the first value is the same as the virtual cell identifier, the scrambling code information is used for indicating the UE identifier when the value of the field is a second value, and the scrambling code information is used for indicating the cell identifier when the value of the field is a third value, and the first value, the second value and the third value are different;

6. The network device of claim 5, the reference signal indication message is radio resource control, RRC, signaling.

7. A terminal device, comprising:

a receiving unit, configured to receive a reference signal indication message, where the reference signal indication message includes scrambling code information, where the scrambling code information is a value of a field in the reference signal indication message, where when the value of the field is a first value, the scrambling code information is used to indicate a virtual cell identifier, where the first value is the same as the virtual cell identifier, and when the value of the field is a second value, the scrambling code information is used to indicate a user equipment UE identifier, and where the value of the field is a third value, the scrambling code information is used to indicate a cell identifier, where the first value, the second value, and the third value are different, and the UE identifier is one of the following identifiers: a cell radio temporary identifier C-RNTI of the UE, a UE group identifier of a UE group where the UE is located and a dedicated identifier of the UE;

and the determining unit is used for determining information used for scrambling the reference signal according to the value of the field.

8. The terminal device of claim 7, the reference signal indication message is radio resource control, RRC, signaling.