WO2018191892A1

WO2018191892A1 - Signal transmission method, network device, and terminal device

Info

Publication number: WO2018191892A1
Application number: PCT/CN2017/081124
Authority: WO
Inventors: 蒋亚军; 乐春晖
Original assignee: 华为技术有限公司
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2018-10-25
Also published as: CN109565690A

Abstract

Embodiments of the present application provide a signal transmission method, a network device, and a terminal device. The method comprises: a network device determining, according to the type of a common channel to be sent on a secondary carrier SCC, beam information for sending the common channel, the beam information comprising beam width for sending the common signal; and the network device sending, according to the beam information, the common channel on the SCC to a terminal device of a first cell. Therefore, the coverage situation of the common channel in the cell can be improved.

Description

Method for transmitting signals, network device and terminal device

Technical field

The embodiments of the present application relate to the field of wireless communications, and, more particularly, to a method, a network device, and a terminal device for transmitting signals.

Background technique

When transmitting the common channel, the network device sends, for example, a Cell Reference Signal (CRS) and a Channel Status Indicator Reference Signal (CSI-) in a downlink radio frame of Long Term Evolution (LTE). RS), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH; Auto Repeat ReQuest (ARQ), Primary Synchronization Channel ( When a common channel such as a Primary Synchronization Channel (P-SCH), a Secondary Synchronization Channel (S-SCH), a Physical Broadcast Channel (PBCH), or a Physical Downlink Control Channel (PDCCH) is used, It is necessary to cover the entire cell range to ensure that all user equipments can receive these common channels normally, so the network equipment needs to use wide beams to transmit these common channels. When the network equipment uses wide beams to transmit these common channels, it transmits Rates are generally much lower than the power when the transmission signal using a narrow beam, and therefore when the cell for the presence of the coverage area of weak cell edge user equipment e.g., the user equipment may not receive the common channel transmitted by the network device.

Summary of the invention

The embodiment of the present application provides a method for transmitting a signal, a network device, and a terminal device, which can improve coverage of a common channel in a cell.

In a first aspect, a method for transmitting a signal is provided, the method comprising: determining, by a network device, beam information for transmitting the common channel according to a type of a common channel to be sent on a secondary carrier SCC, where the beam information includes Transmitting a beamwidth of the common signal; the network device transmitting the common channel to the terminal device of the first cell on the SCC according to the beam information.

Optionally, in an implementation manner of the first aspect, the type of the common channel includes any one of the following: a common channel for transmitting a cell reference signal CRS, a downlink physical control channel PDCCH, and a physical control format indication The channel PCFICH, the physical hybrid retransmission indication channel PHICH, the common channel for transmitting the channel state indication reference signal CSI-RS, the primary synchronization channel P-SCH, the secondary synchronization channel S-SCH, and the broadcast channel BCH.

Optionally, in an implementation manner of the first aspect, if the type of the common channel is any one of the following, the beam width is such that the beam used to send the common channel on the SCC is only And a terminal device that covers a specific area in the first cell: a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.

Optionally, in an implementation manner of the first aspect, if the type of the common channel is any one of the following, the beam width is such that a beam coverage on the SCC for transmitting the common channel is performed. All terminal devices in the first cell: a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, in an implementation manner of the first aspect, if the type of the common channel is the P-SCH or the S-SCH, the beam width is such that a beam for transmitting the common channel on the SCC covers only a terminal device of a specific area in the first cell; if the type of the common channel is for a transmitting station The common channel of the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC covers all terminal devices in the first cell.

Optionally, in an implementation manner of the first aspect, if the type of the common channel is any one of the following, the beam width is such that the beam used to send the common channel on the SCC is only And a terminal device that covers a specific area in the first cell: a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, in an implementation manner of the first aspect, if the type of the common channel is a common channel used for sending the CSI-RS, the beam width is used on the SCC to send the The beam of the common channel covers all terminal devices in the first cell.

Optionally, in an implementation manner of the first aspect, the method further includes: sending, by the network device, the bearer in the P-SCH, the terminal device of the first cell, on the primary carrier PCC The S-SCH and the cell information in the BCH are described.

That is, the secondary carrier SCC may not transmit the P-SCH, the S-SCH describes the BCH, and the cell information carried in the P-SCH, the S-SCH, and the BCH, such as the cell identifier (ID) number, the physicality of the cell. The layer ID value, the cell ID group number, and the like can be configured to the terminal device through the PCC.

Here, different types of common channels are transmitted using narrow beams or wide beams, taking into account various constraints. For example, different types of common channels have different functions, some common channels can transmit using narrow beams without affecting access of terminal devices of the entire cell, and some common channels must be transmitted using wide beams to make all terminals in the cell The device can access the cell.

For example, different common channels occupy different time-frequency resources during transmission. For example, the PDCCH occupies almost the entire frequency domain resource on one symbol. If it cannot be transmitted through a narrow beam, the system power bottleneck is stuck in the PDCCH. In the transmission, because even if other common channels use narrow beams for transmission, the PDCCH transmitted using the wide beam can only cover a limited area, thereby affecting the communication of the terminal device.

Optionally, in an implementation manner of the first aspect, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam, where the network device determines And the information about the coverage of the terminal device of the first cell and/or the channel capacity required by the terminal device of the first cell, and the information about the network device Determining the type of the common channel to be transmitted on the SCC, and determining the beam information.

Optionally, in an implementation manner of the first aspect, before the determining, by the network device, the beam width for sending the common channel according to the type of the common channel to be sent on the SCC, the method further includes: Determining, by the network device, a carrier frequency point of the SCC of the first cell, where a carrier frequency point of the SCC of the first cell is different from a carrier frequency point of an SCC of the second cell, and/or the first cell The carrier frequency of the SCC is different from the carrier frequency of the PCC of the second cell, and the second cell is a cell adjacent to the first cell.

Optionally, in an implementation manner of the first aspect, before the determining, by the network device, the beam width for sending the common channel according to the type of the common channel to be sent on the SCC, the method further includes: Determining, by the network device, a carrier frequency point of the PCC of the first cell, where a carrier frequency point of the PCC of the first cell is different from a carrier frequency point of a PCC of the second cell, and/or the first cell The carrier frequency of the PCC is different from the carrier frequency of the SCC of the second cell.

Optionally, in an implementation manner of the first aspect, before the network device sends the common channel to the terminal device of the first cell on the SCC according to the beam information, the method further includes: : the network device performs clipping processing on the common channel;

The network device sends the common channel to the terminal device of the first cell on the SCC according to the beam information, where the network device sends the terminal device to the first cell on the SCC. Transmitting the common channel after clipping processing, and transmitting clipping noise generated by the clipping process on an area in the first cell without common channel coverage.

It should be understood that the user distribution and service traffic of the actual network are dynamically changed according to time. For example, the traffic volume of the residential area is small during working hours, and the traffic volume during the evening rest time is greatly increased. According to the foregoing measurement manner, the network device can learn the service change in the different directions in the cell according to the real-time measurement of the actual network, and re-determine the beam width, beam pointing, and transmit power for the channel transmission according to the change. The beam information is used to match the coverage and traffic demand of the terminal equipment in the area in the direction, so as to dynamically adjust the cell coverage capability to dynamically adjust the beam information of the transmit beam in real time, thereby implementing optimization of the cell signal coverage.

A second aspect provides a method for transmitting a signal, where the method includes: a terminal device of a first cell receiving, on a secondary carrier SCC, a common channel that is sent by a network device according to beam information of a common channel, where the beam information is The network device determines, according to the type of the common channel, the beam information includes a beam width for transmitting the common signal; and the terminal device accesses the first cell according to the common channel.

Therefore, the terminal device enables different types of common channels to obtain more efficient reception by receiving different types of common channels transmitted by the network devices using different beam widths on the secondary carrier.

Optionally, in an implementation manner of the second aspect, the type of the common channel includes any one of the following: a common channel for transmitting a cell reference signal CRS, a downlink physical control channel PDCCH, and a physical control format indication The channel PCFICH, the physical hybrid retransmission indication channel PHICH, the common channel for transmitting the channel state indication reference signal CSI-RS, the primary synchronization channel P-SCH, the secondary synchronization channel S-SCH, and the broadcast channel BCH.

Optionally, in an implementation manner of the second aspect, if the type of the common channel is any one of the following, the beam width is such that the beam used to send the common channel on the SCC is only And a terminal device that covers a specific area in the first cell: a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.

Optionally, in an implementation manner of the second aspect, if the type of the common channel is any one of the following, the beam width is such that the SCC is used to send the beam of the common channel. Covering all terminal devices in the first cell: a common channel for transmitting the CSI-RS, a beam of the P-SCH, the S-SCH, and the BCH.

Optionally, in an implementation manner of the second aspect, if the type of the common channel is the P-SCH or the S-SCH, the beam width is used on the SCC to send the The beam of the common channel covers only the terminal equipment of the specific area in the first cell; if the type of the common channel is the common channel for transmitting the CSI-RS or the BCH, the beam width makes the A beam for transmitting the common channel on the SCC covers all terminal devices in the first cell.

Optionally, in an implementation manner of the second aspect, if the type of the common channel is any one of the following, the beam width is such that the beam used to send the common channel on the SCC is only And a terminal device that covers a specific area in the first cell: a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, in an implementation manner of the second aspect, if the type of the common channel is a common channel for sending the CSI-RS, the beam width is used on the SCC to send the The beam of the common channel covers all terminal devices in the first cell.

Optionally, in an implementation manner of the second aspect, the method further includes: receiving, by the terminal device of the first cell, a bearer sent by the network device on the P-SCH, on a primary carrier PCC, Cell information in the S-SCH and the BCH.

Optionally, in an implementation manner of the second aspect, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam, where the beam information is The network device is determined according to the coverage condition of the terminal device of the first cell and/or the channel capacity required by the terminal device of the first cell, and the type of the common channel to be sent on the SCC.

Optionally, in an implementation manner of the second aspect, the carrier frequency of the SCC of the first cell is different from the carrier frequency of the SCC of the second cell, and/or the carrier of the SCC of the first cell. The frequency point is different from the carrier frequency of the PCC of the second cell, and the second cell is a cell adjacent to the first cell.

Optionally, in an implementation manner of the second aspect, the carrier frequency of the PCC of the first cell is different from the carrier frequency of the PCC of the second cell, and/or the carrier of the PCC of the first cell. The frequency point is different from the carrier frequency of the SCC of the second cell.

Optionally, in an implementation manner of the second aspect, the common channel that is received by the terminal device of the first cell is a common channel after the network device performs clipping processing.

In a third aspect, a network device is provided, which can perform the operations of the network device in any of the foregoing first aspect or any optional implementation of the first aspect. In particular, the network device may comprise a modular unit for performing the operations of the network device in the first aspect or any of the possible implementations of the first aspect described above.

A fourth aspect provides a terminal device, which can perform the operations of the terminal device in any of the foregoing optional implementations of the second aspect or the second aspect. In particular, the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the second aspect or the second aspect described above.

In a fifth aspect, a network device is provided, the network device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instructions stored by the memory, the performing causes the network device to perform the method of the first aspect or any possible implementation of the first aspect, or the performing causes the network device to implement the network provided by the third aspect device.

In a sixth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the terminal device to implement the terminal provided by the fourth aspect device.

In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program, the program causing a network device to perform the first aspect described above, and any one of the various implementation manners .

In an eighth aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program, the program causing the terminal device to perform the second aspect described above, and any one of the various implementation manners .

In a ninth aspect, a system chip is provided, the system chip comprising an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can be implemented Any of the foregoing first aspects and various implementations thereof.

According to a tenth aspect, a system chip is provided, the system chip includes an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The second aspect and any of the various implementations.

DRAWINGS

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

2 is a flow interaction diagram of a method for transmitting a signal according to an embodiment of the present application.

FIG. 3 is a schematic block diagram of a network device according to an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

FIG. 7 is a schematic structural diagram of a system chip according to an embodiment of the present application.

detailed description

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

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) , Universal Mobile Telecommunication System (UMTS), and future 5G communication systems.

The present application describes various embodiments in connection with a terminal device. The terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent. Or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future evolved land-based public land mobile network (PLMN) networks Terminal equipment, etc.

The present application describes various embodiments in connection with a network device. The network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or may be a base station (NodeB, NB) in the WCDMA system, or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network or a future evolved PLMN network. Network side devices, etc.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The communication system in FIG. 1 may include a network device 10 and a terminal device 20. The network device 10 is configured to provide communication services for the terminal device 20 and access the core network. The terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network. The arrow shown in FIG. 1 may represent a bee between the terminal device 20 and the network device 10 Up/down transmission of the bear link.

The network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine/Man (M2M) network. Or other networks, FIG. 1 is only a simplified schematic diagram of an example, and other terminal devices may also be included in the network, which are not shown in FIG.

An antenna is an energy conversion device that is a device that converts spatial radio wave energy and high-frequency current energy into each other. Due to the size limitation of the antenna, more antennas can be placed in the same size in the high frequency band, so the multi-antenna technology has an advantage in the application of the high frequency band. However, the propagation loss and penetration loss of signal transmission on the high frequency band are much larger than those on the low frequency band. Moreover, the existing network is a low-frequency network, and the stations are constructed according to the coverage capability of the low-frequency band. The multi-antenna system of the high-frequency band also requires the use of low-frequency sites from the cost of network construction. Therefore, multi-antenna systems in high frequency bands need to use beam gain to compensate for the difference in signal propagation loss between high and low frequencies. Thus, the coverage of the common channel in the cell in the high frequency multi-antenna system faces a greater test.

Common channels in a downlink radio frame of a Long Term Evolution (LTE) system, such as CRS, CSI-RS, PCFICH, PHICH, P-SCH, S-SCH, PBCH, PDCCH, etc., when performing signal transmission The occupied time-frequency resources are distributed at different time-frequency resource locations, for example, PDCCH, PCFICH, PHICH occupy the first 1 to 3 symbols in each subframe, and occupy all consecutive sub-carriers in the frequency domain. Other common channels such as PBCH, SSCH, PSCH occupy multiple symbols in the time domain and occupy multiple consecutive subcarriers in the frequency domain. When transmitting these common channels, the network device generally needs to cover the entire cell range to ensure that all user equipments in all cells can receive these common channels normally, so the network equipment needs to use wide beams to transmit these common channels. For a dedicated channel of the user equipment, the network device needs to use a narrow beam to transmit as much as possible, covering a single user equipment to provide maximum gain to the user equipment. When a network device uses a wide beam to transmit these common channels, its transmit power is generally much lower than when a narrow beam is used to transmit signals. Therefore, when there is a user equipment in a weak coverage area such as a cell edge in a cell, these user equipments may The public channel sent by the network device cannot be received. In a system with a large antenna array, the difference in gain between the narrow beam and the wide beam is more pronounced.

In the existing multi-antenna system, the method of increasing the equipment or network cost is adopted to solve the problem that the coverage of the common channel in the cell is limited, for example, by increasing the transmission power, reducing the cell radius, and adding a new station. Whether it is for equipment manufacturers or operators, it is a forced way.

In order to improve the coverage of the common channel in the cell, the embodiment of the present application provides a method for transmitting a signal by using different widths of the common channel on the slave carrier (SCC). This allows for a more efficient coverage of each common channel, enabling more user equipment in the cell to receive the desired common channel.

2 is a flow interaction diagram of a method for transmitting a signal according to an embodiment of the present application. The network device shown in FIG. 2 may be, for example, the network device 10 shown in FIG. 1. The terminal device shown in FIG. 2 may be, for example, the terminal device 20 shown in FIG. 1, but the network device 10 may be connected through an antenna. The method of the embodiment of the present application is used for signal transmission between the plurality of terminal devices, including the terminal device 20. The method performed by the other terminal device may refer to the method performed by the terminal device 20. For brevity, details are not described herein again. As shown in Figure 2, the method includes:

In 210, the network device determines beam information for transmitting the common channel according to the type of the common channel to be transmitted on the secondary carrier SCC.

The beam information includes a beam width for transmitting the common signal.

In 220, the network device sends the public to the terminal device of the first cell on the SCC according to the beam information. channel.

Optionally, as an embodiment, before 220, that is, before the network device sends the common channel to the terminal device of the first cell on the SCC, the method further includes: the network device performs clipping processing on the common channel. Further, the network device may send the clipped common channel to the terminal device of the first cell on the SCC, and send the clipping generated by the clipping process on an area in the first cell that has no common channel coverage. Wave noise.

Specifically, the transmission of the common channel on the existing SCC uses the same wide beam, and there is no degree of freedom on the air domain to transmit noise. In the embodiment of the present application, a wide beam is used for channel transmission on a Primary Component Carrier (PCC), and different narrow beams are generated on the SCC for transmitting a common channel, so that a degree of freedom is generated in the airspace. The clipping noise is transmitted (the clipping noise can be transmitted on the area where the narrow beam is not covered), so the network device can perform the clipping processing in the frequency domain and the air domain, and transmit the clipping noise generated by the clipping. The clipping noise can be transmitted in the airspace direction without the common channel coverage, thereby reducing the overall peak-to-peak ratio of the signal.

In 230, the terminal device of the first cell is on the SCC, and receives the common channel that the network device sends according to the beam information of the common channel.

The beam information is determined by the network device according to the type of the common channel, and the beam information includes a beam width for transmitting the common signal.

In 240, the terminal device accesses the first cell according to the common channel.

Optionally, the type of the common channel includes any one of the following: a common channel for transmitting a cell reference signal CRS, a downlink physical control channel PDCCH, a physical control format indication channel PCFICH, a physical hybrid retransmission indication channel PHICH, The common channel of the transmission channel state indication reference signal CSI-RS, the primary synchronization channel P-SCH, the secondary synchronization channel S-SCH, and the broadcast channel BCH.

Specifically, when the network device sends the common channel to the terminal device, the type of the common channel to be sent may be determined, and according to the type of the common channel, beam information, such as a beam width, for transmitting the common channel is determined. The width determines the range of angles that the beam can cover. Since different common channels can be transmitted with different beamwidths, and not all common channels need to use wide beams for transmission to cover the entire cell, it is better for some specific areas in the cell, such as weak coverage areas. Receiving a common channel sent by the network device to acquire cell information and access the cell, and implementing communication with the network device.

Here, the terminal devices in the same coverage area in the cell have similar transmission conditions of the channels. For example, the terminal equipment in the area closer to the base station is “central coverage”; the terminal equipment in the area far from the base station is “medium coverage”; and the terminal equipment in the area such as the cell edge or the basement is “edge coverage”.

In addition, a narrow beam and a narrow beam are relatively speaking. For example, a common channel transmitted using a wide beam can cover all terminal devices in a cell, that is, the wide beam can be used for all in a cell. The terminal device transmits a common channel; and a beam covering only a part of the area in the cell may be referred to as a narrow beam, and the narrow beam can be used to transmit a common channel to some terminal devices in the cell. For example, a cell is usually located in a region covered by a base station at a 120-degree angle or an area covered by a 60-degree angle. A corresponding coverage angle is 120 degrees when three sectors are networked, and a corresponding coverage angle is when six sectors are networked. 60 degrees. Taking the three-sector networking as an example, the cell is located in the area covered by the base station at a 120-degree angle. At this time, the beam width of the antenna (the beam width after the beam gain is reduced by 3 dB from the peak) is 65 degrees, and the beam can cover 120. For a cell in the range of degrees, the beam can be called a wide beam.

In a multi-antenna system, multiple channels drive different antenna elements respectively, and different directions are formed in space by weighting the channel of each channel (ie, adjusting the amplitude and phase of the beam transmitting the channel). of Beam. Different channels need to form different beams to transmit common channels. In the beamforming process, the narrow beams are weighted on all channels when performing weighting processing, and the weights on each channel can be maximized, but only The phase is different; while the wide beam is only weighted on a few channels, the weights on other channels are relatively small, even zero, because the effect of full-weight weighting on each channel narrows the beam, wide The beam can only sacrifice some of the weights.

Different types of common channels use narrow or wide beams for transmission, and many aspects of constraints need to be considered. For example, different types of common channels have different functions, some common channels can transmit using narrow beams without affecting access of terminal devices of the entire cell, and some common channels must be transmitted using wide beams to make all terminals in the cell The device can access the cell.

Optionally, as an embodiment, if the type of the common channel is any one of the following, the beam width is such that the beam for transmitting the common channel on the SCC covers only the terminal device of the specific area in the first cell: Common channel, PDCCH, PCFICH, and PHICH for transmitting CRS.

Specifically, the CRS, PDCCH, PCFICH, and PHICH may be transmitted on the SCC to a terminal device of a specific area in the first cell, such as a weak coverage area, using a narrow beam. Since different common channels occupy different time-frequency resources during transmission, for example, PDCCH, PCFICH, and PHICH occupy 1-3 symbols in each subframe, occupying the entire continuous subcarrier in the frequency domain, and thus a narrow beam can be used. Send it.

For example, the PDCCH occupies almost the entire frequency domain resource on one symbol. If it cannot be transmitted through a narrow beam, the system power bottleneck will be stuck on the PDCCH transmission, because even other common channels use narrow beams. To transmit, the PDCCH transmitted using the wide beam can only cover a limited area, thereby affecting the communication of the terminal device.

For CRS, based on the assistance of the PCC to the SCC in the Carrier Aggregation (CA) mechanism, the terminal devices in the weak coverage area can access the SCC even if they do not receive the CRS on the SCC, so the CSR can also be narrow. The beam is sent.

In addition, when transmitting these common channels, the entire cell can be scanned on the SCC using a narrow beam. The scope of scanning and the scanning frequency are not limited in this application.

On the basis of transmitting a CRS, a PDCCH, a PCFICH, and a PHICH using a narrow beam, for other common channels except these common channels, transmission may be performed in the following manners.

Mode 1

If the type of the common channel is any one of the following, the beam width is such that the beam for transmitting the common channel on the SCC covers all terminal devices in the first cell: a common channel for transmitting the CSI-RS, P -SCH, S-SCH and BCH.

Specifically, on the basis of transmitting a CRS, a PDCCH, a PCFICH, and a PHICH on a SCC using a narrow beam, a wide beam may be used to transmit CSI-RS, P-SCH, S-SCH, BCH, and other common channels on the SCC, Ensure that the terminal device can synchronize on the SCC and measure the CSI-RS on the SCC. The use of the wide-beam to transmit CSI-RS and BCH enables all terminals in the cell to acquire the broadcast information on the SCC and the channel quality of the SCC, thereby completing signal detection on the SCC, and the sub-carrier resources occupied by the CSI-RS and the BCH are small. Even if a wide beam is transmitted, the gain of the entire common channel is not affected.

Mode 2

If the type of the common channel is P-SCH or S-SCH, the beam width is such that the beam for transmitting the common channel on the SCC covers only the terminal device in a specific area in the first cell; if the type of the common channel is Send The common channel or BCH of the CSI-RS, the beamwidth is such that the beam used to transmit the common channel on the SCC covers all terminal devices in the first cell.

Specifically, based on the CRS, PDCCH, PCFICH, and PHICH transmitted on the SCC using a narrow beam, the P-SCH and the S-SCH may be transmitted using a narrow beam, and the CSI-RS and the BCH may be transmitted on the SCC using the wide beam. Since the signals on the P-SCH and the S-SCH are robust, the entire cell can be covered by narrow beam scanning. Scanning the entire cell using a narrow beam when transmitting the P-SCH and the S-SCH enables all users on the cell to obtain synchronization information on the SCC, and the narrow beam can improve the signal gain of the P-SCH and the S-SCH.

Mode 3

If the type of the common channel is any one of the following, the beam width is such that the beam for transmitting the common channel on the SCC covers only the terminal device of the specific region in the first cell: a common channel for transmitting the CSI-RS, P-SCH, S-SCH and BCH.

Specifically, on the basis of transmitting a CRS, a PDCCH, a PCFICH, and a PHICH on the SCC by using a narrow beam, a common channel such as a P-SCH, an S-SCH, a CSI-RS, and a BCH may be transmitted on the SCC by using a narrow beam, that is, All common channels are transmitted on the SCC using a narrow beam. In this way, the coverage capability of the corresponding weak coverage area can be more significantly improved by the gain of the narrow beam. However, the narrow beam does not cover the area, and the corresponding user may not be able to complete the cell access, so the traffic capacity of this part of the area may be wasted.

Mode 4

If the type of the common channel is a common channel for transmitting the CSI-RS, the beam width is such that a beam for transmitting the common channel on the SCC covers all terminal devices in the first cell. Further, the method may further include: the network device transmitting, on the primary carrier PCC, the cell information carried in the P-SCH, the S-SCH, and the BCH to the terminal device of the first cell.

Specifically, on the basis of transmitting a CRS, a PDCCH, a PCFICH, and a PHICH on a SCC using a narrow beam, a wide beam can be used to transmit a CSI-RS on the SCC, and the P-SCH, the S-SCH, and the BCH are no longer on the SCC. The transmission is performed. At this time, the cell information in the P-SCH, the S-SCH, and the BCH can be transmitted on the PCC.

That is, the P-SCH, the S-SCH, and the BCH may not be transmitted on the secondary carrier SCC, but the cell information carried in the P-SCH, the S-SCH, and the BCH, such as the cell identifier (ID) number, and the physicality of the cell. The layer ID value, the cell ID group number, and the like can be configured to the terminal device through the PCC. Here, the auxiliary function of the SCC in the CA is utilized, and the information carried on the P-SCH, the S-SCH, and the BCH in the SCC is configured by the PCC to the terminal device of the cell. Because it is the same cell, the terminal device can already perform information interaction with the network device on the PCC, so that the information on the SCC can be sent to the terminal device through the PCC. Thereby, the transmission of P-SCH, S-SCH and BCH on the SSC is avoided, and the system power is saved to the utmost.

Optionally, as an embodiment, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam.

Further, the network device determines beam information for transmitting the common channel, and includes: information about, by the network device, a coverage condition of the terminal device of the first cell and/or a channel capacity required by the terminal device of the first cell, and The type of the common channel to be transmitted on the SCC determines the beam information.

Specifically, before transmitting the common channel, the network device may determine, according to the type of the common channel to be sent on the SCC, which common channels can be transmitted by using a narrow beam, and may also combine the coverage of the terminal device of the first cell and/or Or information of channel capacity required by the terminal device of the first cell to determine a transmit power for transmitting the common channel and a transmit direction of the beam.

For example, before the station is built, the network discipline personnel can perform the road test in the field and test the transmission loss of the entire cell, so that the path loss situation of each location in the first cell can be drawn, and the network device is identified from the perspective of the network device. The beamwidth, beam direction, and required transmit power of the beam used to transmit the common channel on the area that needs to be covered. The beamwidth and transmit power together determine the strength of the received signal that the terminal device can obtain in the direction in which the beam is directed. The transmit power may be estimated according to the traffic corresponding to the signal strength that the terminal device in the area can receive. For another example, the network ruler can perform system simulation according to the actual electronic map of the first cell, identify the weak coverage area in the first cell from the simulation result, and directly obtain the area on the network device that needs to be covered by the simulation directly from the simulation. The beamwidth, beam direction, and required transmit power of the beam used to transmit the common channel.

Alternatively, the actual network statistics may be used to obtain the statistics of the coverage of the terminal device of the first cell and the capacity of the terminal device, that is, during the actual network operation, the terminal device reports the measurement to the network device according to the measurement configuration. The report includes, for example, measurement information such as Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) of the first cell. Through the uplink signal of the terminal device, the network device can measure the direction of the incoming wave of the received signal, and obtain the direction information of the terminal device. In addition, through the measurement information reported by the terminal device, the network device can know the signal received by the terminal device in the downlink. Strength and coverage quality. The result of a single terminal device and a single measurement may be deviated. However, after the network device has measured the measurement results of a large number of terminal devices for a period of time, the coverage of the entire cell in different directions can be accurately obtained. Similarly, according to different terminal devices and network devices. The size and frequency of the traffic of the communication, the network device also knows the channel capacity required by the terminal devices in the different directions in the first cell. In this way, the network device obtains beam information, such as beamwidth, beam direction, and required transmit power, of the beam for transmitting the common channel on the area that needs to be heavily covered.

After the network device knows the beam information for transmitting the common channel on the area that needs to be covered in the cell, the narrow beam can be generated according to the beam information, and one or more unrelated narrow beams can be generated and adjusted on the SCC. These narrow beams are directed to a terminal device that needs to be focused on, such as a weak coverage area terminal device or a terminal device that requires channel capacity, to transmit the common channel to the terminal device of the first cell on the SCC. For example, a certain area in the first cell has a range of 12 degrees in the horizontal direction and a range of 4 degrees in the vertical direction, and is directed to deviate from the antenna normal direction of the network device by 15 degrees and deviate from the antenna horizontal direction by 5 degrees. The transmit power required for transmitting the beam of the common channel in the area is 10 W, and the network device can generate a beam for transmitting the common channel on the SCC according to the information and send the common channel to the specific area at a power of 10 W. Terminal Equipment.

Since multiple narrow beams are generated on the SCC, and the transmit power is allocated among multiple narrow beams on the SCC, the system allocates power between different beams according to the distribution relationship between the terminal equipment and the traffic of the entire cell. Here, the allocation algorithm is not limited. In this way, the network device can coordinately allocate power resources for transmitting the common channel on the areas in different directions in the first cell on the premise that the total power of the system is constant. When the network device learns that the terminal equipment of a specific area in a certain direction in the first cell needs to enhance the signal strength and the channel capacity, more power in the total power can be allocated to the beam pointing in the direction.

Optionally, as an embodiment, before the network device determines, according to the type of the common channel to be sent on the SCC, the beam width for transmitting the common channel, the method further includes: determining, by the network device, the carrier of the SCC of the first cell. a frequency point, where a carrier frequency of the SCC of the first cell is different from a carrier frequency of the SCC of the second cell, and/or a carrier frequency of the SCC of the first cell is different from a carrier frequency of the PCC of the second cell, The second cell is a cell adjacent to the first cell.

Optionally, as an embodiment, before determining, by the network device, the beamwidth for transmitting the common channel according to the type of the common channel to be sent on the SCC, the method further includes: determining, by the network device, the carrier of the PCC of the first cell. a frequency point, wherein a carrier frequency of the PCC of the first cell is different from a carrier frequency of the PCC of the second cell, and/or a carrier frequency of the PCC of the first cell is different from a carrier frequency of the SCC of the second cell .

Specifically, the interference at the cell edge mainly comes from the overlap of the same-frequency signals of different cells. Since the network device can generate a narrow beam to flexibly point to different directions when transmitting the common channel on the SCC, the neighboring cells can fully utilize this feature. To determine the carrier frequency of the PCC and the carrier frequency of the SCC, and the beam direction used to transmit the common channel on the SCC to avoid interference of the same frequency signal.

For example, the cell adjacent to the first cell is the second cell and the third cell, and the network device is configured with five carriers, wherein the carrier frequency of the PCC that can be configured with three cells is carrier 1, carrier 2, and carrier 3, respectively. At the same time, the carrier frequency on the SCC of the first cell is carrier 4 and carrier 5, so that the network device can use the carrier 4 and the carrier 5 to transmit the common channel to the terminal device at the cell edge, so that the cell edge has no co-frequency carrier signal. The overlap also greatly reduces the interference between cells.

In the embodiment of the present application, different types of common channels are used to transmit different types of common channels on the secondary carrier, so that each common channel can achieve more effective coverage, so that more user equipments in the cell can receive. The required common channel.

Therefore, the network device dynamically monitors the coverage capability of the cell during the operation of the network, thereby semi-statically adjusting the carrier frequency and beam direction, enhancing the coverage and channel capacity of the common channel at the cell edge, and reducing the neighboring cell. Interference, which optimizes the transmission capacity of the control channel.

The beam gain brought by the embodiment of the present application will be described in detail with reference to Table 1 and Table 2 below. Suppose the network device is configured with 5 carriers (carrier 1 - carrier 5), and the total transmit power is constant. Because the transmission powers on different carriers are different under different carrier configurations, when the transmission power is transmitted on 5 carriers and the transmission powers on each carrier are equal, the transmission power of the single carrier is used as the baseline of the gain comparison. It is assumed that the common channel on the primary carrier PCC is transmitted according to the wide beam, and the common channel on the secondary carrier SCC is transmitted according to the configuration of Table 1.

Table I

The coverage of the terminal equipment in the cell and the demand for the channel capacity vary with the distribution of the terminal equipment in the cell and the time. It is assumed that 50% of the cells in the cell need to enhance the coverage of the common channel and increase the channel capacity, and the secondary carrier. The narrow beam on the SCC used to transmit the common channel needs to point to this 50% area. Assuming that the network device adjusts the beam information of the beam for transmitting the common channel according to Table 2 under different carrier configurations, a power gain of about 9 dB can be obtained. The power boost refers to the power of the common channel transmitted on the SCC configured by the network device. After the power is allocated, the power of the power amplifier (the device transmitting the power) of the transmitter can be increased relative to the power baseline. Beam gain refers to the gain obtained by antenna radiation when a narrow beam is transmitted and the narrow beam covers only the 50% of the area in the cell that needs to be covered. Clipping gain is the gain of the transmit power that can be obtained by the transmitter's power amplifier due to the reduction of the signal peak in the corresponding configuration. The total gain is the total gain obtained under the corresponding processing.

Table II

In addition, different primary carrier frequencies, secondary carrier frequencies, and beams on the secondary carriers may be configured between adjacent cells, thereby improving interference of common channels between adjacent cells.

It can be seen that by using different beam information for different types of common channels for transmission, the coverage of the common channel in the multi-carrier system can be improved well, and at least 9 decibels (dB) can be improved in the 5-carrier system. Beam gain.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation.

FIG. 3 is a schematic block diagram of a network device 300 in accordance with an embodiment of the present application. As shown in FIG. 3, the network device 300 includes a determining unit 310 and a transmitting unit 320. among them:

a determining unit 310, configured to determine beam information for sending the common channel according to a type of a common channel to be sent on the secondary carrier SCC, where the beam information includes a beam width for transmitting the common signal;

The sending unit 320 sends the common channel to the terminal device of the first cell on the SCC according to the beam information determined by the determining unit 310.

Therefore, the network device sends the beam with different widths to different types of common channels on the secondary carrier. Sent, so that each common channel can achieve more efficient coverage, so that more user equipment in the cell can receive the required common channel.

Optionally, the type of the common channel includes any one of the following: a common channel for transmitting a cell reference signal CRS, a downlink physical control channel PDCCH, a physical control format indication channel PCFICH, a physical hybrid retransmission indication channel PHICH, A common channel for transmitting a channel state indication reference signal CSI-RS, a primary synchronization channel P-SCH, a secondary synchronization channel S-SCH, and a broadcast channel BCH.

Optionally, if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only a terminal of a specific area in the first cell. device:

a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.

Optionally, if the type of the common channel is any one of the following, the beam width is such that a beam for sending the common channel on the SCC covers all terminal devices in the first cell: a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, if the type of the common channel is the P-SCH or the S-SCH, the beam width is such that a beam for sending the common channel on the SCC covers only the first cell a terminal device of a specific area; if the type of the common channel is a common channel for transmitting the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC is used Covering all terminal devices in the first cell.

Optionally, if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only a terminal of a specific area in the first cell. Apparatus: a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, if the type of the common channel is a common channel for sending the CSI-RS, the beam width is such that a beam for sending the common channel on the SCC covers the first cell. All terminal equipment.

Optionally, the sending unit 320 is further configured to, on the primary carrier PCC, send, to the terminal device of the first cell, cell information that is carried in the P-SCH, the S-SCH, and the BCH. .

Optionally, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam, where the determining unit 310 is specifically configured to: the network device according to the The beam information is determined by the coverage condition of the terminal device of the first cell and/or the channel capacity required by the terminal device of the first cell, and the type of the common channel to be transmitted on the SCC.

Optionally, the determining unit 310 is further configured to: determine, according to a type of the common channel to be sent on the SCC, a carrier frequency point of the SCC of the first cell before determining a beam width of the common channel. The carrier frequency of the SCC of the first cell is different from the carrier frequency of the SCC of the second cell, and/or the carrier frequency of the SCC of the first cell and the carrier of the PCC of the second cell The frequency is different, and the second cell is a cell adjacent to the first cell.

Optionally, the determining unit 310 is further configured to determine a carrier frequency of the PCC of the first cell before determining a beam width for sending the common channel according to a type of a common channel to be sent on the SCC. The carrier frequency of the PCC of the first cell is different from the carrier frequency of the PCC of the second cell, and/or the carrier frequency of the PCC of the first cell and the carrier of the SCC of the second cell. The frequency is different.

Optionally, the network device further includes: a processing unit, configured to: before the transmitting, by the sending unit 320, send the common channel to the terminal device of the first cell on the SCC according to the beam information, The common channel is subjected to clipping processing;

The sending unit 320 is specifically configured to: send, to the terminal device of the first cell, the SCC And clipping the processed common channel, and transmitting clipping noise generated by the clipping process on an area of the first cell that has no common channel coverage.

FIG. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 4, the network device 400 includes a receiving unit 410 and a processing unit 420. among them:

The receiving unit 410 is configured to receive, on the secondary carrier SCC, the common channel that is sent by the network device according to the beam information of the common channel, where the beam information is determined by the network device according to the type of the common channel, where the beam is The information includes a beam width for transmitting the common signal, and the terminal device is located in the first cell;

The processing unit 420 is configured to access the first cell according to the common channel received by the receiving unit 410.

Optionally, if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only a terminal of a specific area in the first cell. Apparatus: a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.

Optionally, if the type of the common channel is any one of the following, the beam width is such that a beam for sending the common channel on the SCC covers all terminal devices in the first cell: A beam for transmitting a common channel of the CSI-RS, the P-SCH, the S-SCH, and the BCH.

Optionally, the receiving unit 410 is further configured to: on the primary carrier PCC, receive cell information that is sent by the network device and is carried in the P-SCH, the S-SCH, and the BCH.

Optionally, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam, where the beam information is a terminal device of the network device according to the first cell The coverage and/or the information of the channel capacity required by the terminal device of the first cell, and the type of the common channel to be transmitted on the SCC are determined.

Optionally, the carrier frequency of the SCC of the first cell is different from the carrier frequency of the SCC of the second cell, and/or the carrier frequency of the SCC of the first cell and the PCC of the second cell. The carrier frequency points are different, and the second cell is a cell adjacent to the first cell.

Optionally, the carrier frequency of the PCC of the first cell is different from the carrier frequency of the PCC of the second cell, and/or the carrier frequency of the PCC of the first cell and the SCC of the second cell. The carrier frequency is different.

Optionally, the common channel received by the terminal device of the first cell is a common channel after the network device performs clipping processing.

FIG. 5 is a schematic structural diagram of a network device 500 according to an embodiment of the present application. As shown in FIG. 5, the network device includes a processor 510, a transceiver 520, and a memory 530, wherein the processor 510, the transceiver 520, and the memory 530 communicate with each other through an internal connection path. The memory 530 is configured to store instructions for executing the instructions stored by the memory 530 to control the transceiver 520 to receive signals or transmit signals. Alternatively, the processor 510 can call the program code stored in the memory 530 to perform the corresponding operations of the network device in the method shown in FIG. 2.

The processor 510 is specifically configured to: determine, according to a type of a common channel to be sent on the secondary carrier SCC, beam information for sending the common channel, where the beam information includes a beam width for transmitting the common signal;

The transceiver 520 is specifically configured to send the common channel to the terminal device of the first cell on the SCC according to the beam information determined by the determining unit.

Therefore, the network device transmits by using different widths of beams on different types of common channels on the secondary carrier, so that each common channel can achieve more effective coverage, so that more user equipments in the cell can receive the required Common channel.

Optionally, the transceiver 520 is further configured to: send, on the primary carrier PCC, cell information that is carried in the P-SCH, the S-SCH, and the BCH to a terminal device of the first cell. .

Optionally, the beam information further includes a transmit power of a beam for transmitting the common channel and/or a transmit direction of the beam, where the processor 510 is specifically configured to: the network device according to the The beam information is determined by the coverage condition of the terminal device of the first cell and/or the channel capacity required by the terminal device of the first cell, and the type of the common channel to be transmitted on the SCC.

Optionally, the processor 510 is further configured to: determine, according to a type of the common channel to be sent on the SCC, a carrier frequency point of the SCC of the first cell before determining a beam width of the common channel. The carrier frequency of the SCC of the first cell is different from the carrier frequency of the SCC of the second cell, and/or the carrier frequency of the SCC of the first cell and the carrier of the PCC of the second cell The frequency is different, and the second cell is a cell adjacent to the first cell.

Optionally, the processor 510 is further configured to determine a carrier frequency of the PCC of the first cell before determining a beam width for sending the common channel according to a type of a common channel to be sent on the SCC. The carrier frequency of the PCC of the first cell is different from the carrier frequency of the PCC of the second cell, and/or the carrier frequency of the PCC of the first cell and the carrier of the SCC of the second cell. The frequency is different.

Optionally, the processor 510 is further configured to: after the transceiver 520 sends the common channel to the terminal device of the first cell on the SCC according to the beam information, perform the common channel Clipping processing;

The transceiver 520 is specifically configured to: send, on the SCC, the clipped processed common channel to a terminal device of the first cell, and have no common channel in the first cell. On the covered area, the clipping noise generated by the clipping process is transmitted.

It should be understood that, in the embodiment of the present application, the processor 510 may be a central processing unit (CPU), and the processor 510 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 530 can include read only memory and random access memory and provides instructions and data to the processor 510. A portion of the memory 530 may also include a non-volatile random access memory. For example, the memory 530 can also store information of the device type.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 510 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 510. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 530, and processor 510 reads the information in memory 530 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

The network device 500 according to the embodiment of the present application may correspond to the network device for performing the method shown in FIG. 2, and the network device 300 according to the embodiment of the present application, and each unit or module in the network device 500 is used separately. The operations or processes performed by the network device in the method shown in FIG. 2 are executed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application. As shown in FIG. 6, the terminal device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, the transceiver 620, and the memory 630 communicate with each other through an internal connection path. The memory 630 is configured to store instructions for executing the instructions stored by the memory 630 to control the transceiver 620 to receive signals or transmit signals. Alternatively, the processor 610 can call the program code stored in the memory 630 to perform the corresponding operation of the terminal device in the method shown in FIG. 2.

The transceiver 620 is specifically configured to: receive, on the secondary carrier SCC, a beam of the network device according to the common channel. The common channel for information transmission, the beam information is determined by the network device according to the type of the common channel, the beam information includes a beam width for transmitting the common signal, and the terminal device is located at the first Community

The processor 610 is specifically configured to: access the first cell according to the common channel received by the receiving unit.

Optionally, the transceiver 620 is further configured to: on the primary carrier PCC, receive cell information that is sent by the network device and is carried in the P-SCH, the S-SCH, and the BCH.

Optionally, the common channel received by the transceiver 620 is a common channel after being clipped by the network device.

It should be understood that, in the embodiment of the present application, the processor 610 may be a central processing unit (CPU), and the processor 610 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or Transistor logic devices, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 630 can include read only memory and random access memory and provides instructions and data to the processor 610. A portion of the memory 630 may also include a non-volatile random access memory. For example, the memory 630 can also store information of the device type.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 610. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 630, and the processor 610 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The terminal device 600 according to the embodiment of the present application may correspond to the foregoing terminal device for performing the method shown in FIG. 2, and the terminal device 400 according to the embodiment of the present application, and each unit or module in the terminal device 600 is used separately. The operations or processes executed by the terminal device in the method shown in FIG. 2 are executed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 7 is a schematic structural diagram of a system chip according to an embodiment of the present application. The system chip 700 of FIG. 7 includes an input interface 701, an output interface 702, at least one processor 703, and a memory 704. The input interface 701, the output interface 702, the processor 703, and the memory 704 are interconnected by an internal connection path. . The processor 703 is configured to execute code in the memory 704.

Alternatively, when the code is executed, the processor 703 can implement a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.

Alternatively, when the code is executed, the processor 703 may implement a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The unit described as a separate component may or may not be physically separated as a unit display The components may or may not be physical units, ie may be located in one place or may be distributed over multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is only a specific embodiment of the present application, but the scope of protection of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application. , should be covered in the scope of protection of this application for personal gain. Therefore, the scope of protection of the embodiments of the present application should be determined by the scope of protection of the claims.

Claims

A method of transmitting a signal, the method comprising:

The network device determines beam information for transmitting the common channel according to a type of a common channel to be sent on the secondary carrier SCC, where the beam information includes a beam width for transmitting the common signal;

And the network device sends the common channel to the terminal device of the first cell on the SCC according to the beam information.
The method of claim 1 wherein the type of the common channel comprises any one of the following:

Common channel for transmitting cell reference signal CRS, downlink physical control channel PDCCH, physical control format indication channel PCFICH, physical hybrid retransmission indication channel PHICH, common channel for transmitting channel state indication reference signal CSI-RS, primary synchronization channel P-SCH, secondary synchronization channel S-SCH, and broadcast channel BCH.
The method according to claim 2, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only Terminal equipment in a specific area in the first cell:

a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.
The method according to claim 3, wherein if the type of the common channel is any one of the following, the beam width is such that the beam on the SCC for transmitting the common channel covers the All terminal devices in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The method according to claim 3, wherein if the type of the common channel is the P-SCH or the S-SCH, the beam width is used to send the common channel on the SCC The beam only covers the terminal device of the specific area in the first cell;

If the type of the common channel is a common channel for transmitting the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC covers the first cell All terminal equipment.
The method according to claim 3, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only Terminal equipment in a specific area in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The method according to claim 3, wherein if the type of the common channel is a common channel for transmitting the CSI-RS, the beam width is used to transmit the common channel on the SCC The beam covers all terminal devices in the first cell.
The method of claim 7 wherein the method further comprises:

The network device sends, on the primary carrier PCC, cell information carried in the P-SCH, the S-SCH, and the BCH to the terminal device of the first cell.
A method of transmitting a signal, the method comprising:

The terminal device of the first cell is on the secondary carrier SCC, and receives the common channel that is sent by the network device according to the beam information of the common channel, where the beam information is determined by the network device according to the type of the common channel, the beam The information includes a beam width for transmitting the common signal;

The terminal device accesses the first cell according to the common channel.
The method of claim 9, wherein the type of the common channel comprises any one of the following:

Common channel for transmitting cell reference signal CRS, downlink physical control channel PDCCH, physical control format indication channel PCFICH, physical hybrid retransmission indication channel PHICH, common channel for transmitting channel state indication reference signal CSI-RS, primary synchronization channel P-SCH, secondary synchronization channel S-SCH, and broadcast channel BCH.
The method according to claim 10, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only Terminal equipment in a specific area in the first cell:

a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.
The method according to claim 11, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers the All terminal devices in the first cell:

A beam for transmitting a common channel of the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The method according to claim 11, wherein if the type of the common channel is the P-SCH or the S-SCH, the beam width is used to send the common channel on the SCC The beam only covers the terminal device of the specific area in the first cell;

If the type of the common channel is a common channel for transmitting the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC covers the first cell All terminal equipment.
The method according to claim 11, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC covers only Terminal equipment in a specific area in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The method according to claim 11, wherein if the type of the common channel is a common channel for transmitting the CSI-RS, the beam width is used to send the common channel on the SCC. The beam covers all terminal devices in the first cell.
The method of claim 15 wherein the method further comprises:

The terminal device of the first cell receives, on the primary carrier PCC, cell information that is sent by the network device and is carried in the P-SCH, the S-SCH, and the BCH.
A network device, where the network device includes:

a determining unit, configured to determine beam information for transmitting the common channel according to a type of a common channel to be sent on the secondary carrier SCC, where the beam information includes a beam width for transmitting the common signal;

And a sending unit, configured to send, according to the beam information determined by the determining unit, the common channel to the terminal device of the first cell on the SCC.
The network device according to claim 17, wherein the type of the common channel comprises any one of the following:

Common channel for transmitting cell reference signal CRS, downlink physical control channel PDCCH, physical control format indication channel PCFICH, physical hybrid retransmission indication channel PHICH, common channel for transmitting channel state indication reference signal CSI-RS, primary synchronization channel P-SCH, secondary synchronization channel S-SCH, and broadcast channel BCH.
The network device according to claim 18, wherein if said common channel is of the following type And the beam width is such that the beam for transmitting the common channel on the SCC covers only the terminal device of the specific area in the first cell:

a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.
The network device according to claim 19, wherein if the type of the common channel is any one of the following, the beam width is such that a beam coverage area on the SCC for transmitting the common channel is used All terminal devices in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The network device according to claim 19, wherein if the type of the common channel is the P-SCH or the S-SCH, the beam width is used to send the public on the SCC The beam of the channel covers only the terminal device of the specific area in the first cell;

If the type of the common channel is a common channel for transmitting the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC covers the first cell All terminal equipment.
The network device according to claim 19, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC only covers a terminal device of a specific area in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The network device according to claim 19, wherein if the type of the common channel is a common channel for transmitting the CSI-RS, the beam width is used to send the public on the SCC The beam of the channel covers all terminal devices in the first cell.
A terminal device, the terminal device includes:

a receiving unit, configured to receive, on the secondary carrier SCC, the common channel that is sent by the network device according to the beam information of the common channel, where the beam information is determined by the network device according to the type of the common channel, where the beam information is Included, a beam width for transmitting the common signal, where the terminal device is located in the first cell;

And a processing unit, configured to access the first cell according to the common channel received by the receiving unit.
The terminal device according to claim 24, wherein the type of the common channel comprises any one of the following:

Common channel for transmitting cell reference signal CRS, downlink physical control channel PDCCH, physical control format indication channel PCFICH, physical hybrid retransmission indication channel PHICH, common channel for transmitting channel state indication reference signal CSI-RS, primary synchronization channel P-SCH, secondary synchronization channel S-SCH, and broadcast channel BCH.
The terminal device according to claim 25, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC is only covered a terminal device of a specific area in the first cell:

a common channel for transmitting the CRS, the PDCCH, the PCFICH, and the PHICH.
The terminal device according to claim 26, wherein if the type of the common channel is any one of the following, the beam width is such that a beam coverage area on the SCC for transmitting the common channel is used All terminal devices in the first cell:

A beam for transmitting a common channel of the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The terminal device according to claim 26, wherein if the type of the common channel is the P-SCH or the S-SCH, the beam width is used to send the public on the SCC The beam of the channel is only a terminal device covering a specific area in the first cell;

If the type of the common channel is a common channel for transmitting the CSI-RS or the BCH, the beam width is such that a beam for transmitting the common channel on the SCC covers the first cell All terminal equipment.
The terminal device according to claim 26, wherein if the type of the common channel is any one of the following, the beam width is such that a beam for transmitting the common channel on the SCC is only covered a terminal device of a specific area in the first cell:

a common channel for transmitting the CSI-RS, the P-SCH, the S-SCH, and the BCH.
The terminal device according to claim 26, wherein if the type of the common channel is a common channel for transmitting the CSI-RS, the beam width is used to send the public on the SCC The beam of the channel covers all terminal devices in the first cell.