CN109392044A

CN109392044A - The method and apparatus of cell switching

Info

Publication number: CN109392044A
Application number: CN201810802061.8A
Authority: CN
Inventors: 李国荣; 张莉莉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-10
Filing date: 2018-07-20
Publication date: 2019-02-26
Anticipated expiration: 2038-07-20
Also published as: CN109392044B

Abstract

This application provides a kind of cell switching method and devices, this method comprises: target BS determines the wave beam communicated between target BS and terminal device by the first ascending resource set, in particular by the mapping relations for establishing ascending resource set and downlink wave beam, target BS can determine the downlink wave beam where terminal device by the ascending resource that receiving terminal apparatus is sent, and downlink transfer is carried out on the downlink wave beam；Or target BS notifies the mark of the uplink beam where ascending resource or index information to terminal device, terminal device selects the uplink beam to carry out uplink；Or the wave beam that target BS is communicated by the mapping relations or beam information of the DCI ascending resource for including and wave beam, notice terminal device with target BS；This method can reduce the beam scanning of terminal device and target BS, to reduce the handover delay of cell switch process.

Description

The method and apparatus of cell switching

This application claims on 08 10th, 2017 submission Patent Office of the People's Republic of China, application No. is 201710682182.9, application Entitled " RACH-less switching method and equipment in high frequency " and on 03 1st, 2018 submission Patent Office of the People's Republic of China, application No. is 201810171237.4, apply for the excellent of the Chinese patent application of entitled " RACH-less switching method and equipment in high frequency " It first weighs, entire contents are hereby incorporated by reference in the application.

Technical field

This application involves the communications fields, more particularly, to the method and apparatus of cell switching.

Background technique

In the cell switching flow of existing long term evolution (long term evolution, LTE) system, in order to subtract Few HO-break duration is, it is specified that RACH-less handover mechanism.Wherein, target BS is in advance to terminal device assignment period Ascending resource scheduling (uplink grant, UL grant), and in wireless heterogeneous networks (radio resource Control, RRC) relevant information (such as period) is sent to terminal device in message.Switching command (handover, HO) Subframe distribution and UL grant format, such as the starting subframe of UL grant can be configured in RRC information.If terminal device does not have Have and obtain UL grant from the RRC information of HO, terminal device should monitoring objective base station Physical Downlink Control Channel (physical downlink control channel, PDCCH) obtains UL grant.When terminal device is ready to switch When to target BS, the UL grant of predistribution is can be used to send handoff completion message and complete switching in it.Source base station is being recognized Stop downlink transfer when being switched to target BS for UE.

It, can also be using RACH-less handover mechanism as reduction switching in new wireless technology (new radio, NR) The method of break period.In multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO) antenna system, Transmitting terminal and receiving end use large-scale transmitting antenna and receiving antenna array respectively, and signal is made to pass through transmitting terminal and receiving end Large-scale antenna array transmission and receive, so as to improve communication quality, beam forming just refers to wireless signal only according to spy The technology that fixed direction is propagated.In the high-frequency operation of NR, beam forming (beam forming) Lai Tisheng cell is generallyd use Coverage rate still needs to carry out beam scanning (beam sweeping) to select to close in the communication process of base station and terminal device Suitable wave beam, to carry out data transmission.

In current LTE RACH-less handover mechanism, the beam scanning of base station and terminal device will increase cell and cut Time delay is changed, therefore, it is necessary to a kind of methods, reduce the time delay of beam scanning, to reduce the time delay of cell switching.

Summary of the invention

The application provides a kind of method and apparatus of cell switching, can reduce the power consumption of terminal device, reduces cell and cuts The time delay changed.

In a first aspect, providing a kind of communication means, comprising: first network equipment determines on terminal device uses first Row resource collection, which includes at least one ascending resource, which set for the terminal It is standby that the network equipment of Target cell is provided；The first network equipment determines the first wave beam according to the first ascending resource set, should Any one in multiple wave beams that first wave beam, which is the first network equipment, to be determined according to the measurement result that the terminal device reports Wave beam；The first network equipment passes through first wave beam and the terminal equipment in communication.

By method provided by the present application, in terminal device in the handoff procedure from source base station to target BS, or from source Ascending resource UL grant is configured in one or more set, each set by base station into the handoff procedure of target BS Including at least a UL grant, determine the uplink beam communicated between target BS and terminal device under by ascending resource Traveling wave beam, such as the mapping relations of UL grant set and downlink wave beam are established, target BS can pass through receiving terminal apparatus The UL grant of transmission determines the received downlink wave beam of terminal device institute, and downlink transfer is carried out on the downlink wave beam；Or The mark of uplink beam where UL grant or index information are notified that terminal device selection should to terminal device by target BS Uplink beam carries out uplink.This method can be reduced under uplink beam scanning process and the target BS of terminal device Traveling wave beam scanning, to reduce the time delay of cell switch process.

With reference to first aspect, in certain implementations of first aspect, the first network equipment is according to first uplink Resource collection determines the first wave beam, comprising: the first network equipment obtains the first mapping relations, and first mapping relations are for referring to Show the corresponding relationship between multiple ascending resource set and multiple wave beams；The first network equipment according to first mapping relations, Wave beam corresponding with the first ascending resource set is determined as first wave beam.

Optionally, target BS can be gathered according to the UL grant for being pre-assigned to terminal device and downlink wave beam determines First mapping relations.It may include the corresponding pass between ascending resource set and the mark of downlink wave beam in first mapping relations System also may include the ascending resource index in ascending resource set and the corresponding relationship between the mark of downlink wave beam.

It should be understood that the first mapping relations that target BS obtains here can be what target BS determined, it is also possible to source What base station determined is sent to target BS, or be pre-configured.

It should also be understood that the first mapping relations can be the mapping between UL grant and the downlink wave beam of target BS here Relationship can be the corresponding relationship between UL grant and the uplink beam of terminal device, be also possible to UL grant, target base The corresponding relationship shared between the uplink beam of the downlink wave beam, terminal device stood.

It should also be understood that the generation principle of the first mapping relations can be first network equipment and be reported according to terminal device here Measurement result determine the quality of wave beam, and beam quality is preferably corresponded to the higher ascending resource of priority, can also be with It is to carry out generating the first mapping relations according to the priority orders of wave beam and the priority orders of ascending resource, the application is to first The generation principle of mapping relations is without limitation.

Through the above technical solutions, target BS is notifying between terminal device UL grant and wave beam in switching command Mapping relations facilitate target BS and know wave beam where terminal device, so that target BS is set on the wave beam with terminal It is standby to be communicated, the beam scanning of target BS is avoided, the handover delay of handoff procedure is reduced.

With reference to first aspect with above-mentioned implementation, in certain possible implementations, which is used for Indicate the corresponding relationship between the index of multiple ascending resource set and the mark of multiple wave beams, the first network equipment is according to this Wave beam corresponding with the first ascending resource set is determined as first wave beam, comprising: the first network by the first mapping relations Equipment determines the first identifier of wave beam corresponding with the first ascending resource set according to the first mapping relations；The first network The wave beam that equipment indicates the first identifier is determined as first wave beam.

Specifically, in the handoff procedure of target BS and source base station, the uplink signal of terminal device is by target base Station detects, therefore target BS knows terminal device to the suitable uplink beam of target BS, therefore target BS can be with The uplink signal of terminal device is detected, by source base station notice with the suitable upgoing wave of identification terminal equipment to target BS Beam.

Specifically, switching response message may include the information of one or more uplink beams, such as the of uplink beam The information such as one mark or index.Terminal device can determine uplink beam according to the information of the first identifier of the first wave beam.Terminal Equipment directly determines uplink beam according to the first identifier, and uses pre-assigned UL grant to mesh in the uplink beam It marks base station and carries out uplink.This method can reduce terminal device and carry out the uplink beam scanning before uplink, to drop The time delay of low cell switch process；Meanwhile target BS does not need the week that predistribution is reserved in each possible uplink beam Phase property UL grant, can be improved the utilization rate of ascending resource.

With reference to first aspect with above-mentioned implementation, in certain possible implementations, when the terminal device does not obtain When obtaining pre-assigned ascending resource, this method further include: the first network equipment sends downlink control letter to the terminal device DCI is ceased, which includes at least one of the first mapping relations and first identifier information, wherein first mapping relations are used for Indicate the corresponding relationship between the first ascending resource set and first wave beam, which is the mark of first wave beam Know.

It should be understood that when terminal device does not obtain pre-assigned UL grant from the switching command that base station is sent, Terminal device should monitor the PDCCH of base station, i.e., the configuration information of UL grant is obtained according to DCI.Therefore, previous embodiment In the RRC link that is sent to terminal device of the switching response message that is sent to source base station when target BS and source base station reconfigure and disappear It, can be after terminal device and target BS establish connection, from target BS to end when there is no the UL grant of configuration in breath End equipment sends DCI to configure UL grant, but terminal device and target BS are also needed to carry out beam scanning selection Suitable wave beam, therefore also will increase the time delay of cell switch process.

Believed by the mapping relations in the DCI that target BS is sent to terminal device including UL grant set and wave beam Breath and/or wave beam mark or index information, thus terminal device receive target BS transmission DCI after, according in DCI Information is determining and the wave beam of target BS communication, reduce the beam scanning in cell switch process, reduce handover delay.

Terminal device receives DCI, and obtaining includes information in DCI, such as DCI may include UL grant set and downlink The information of mapping relations between wave beam or the information of at least one uplink beam, such as the mark of uplink beam, Huo Zheshang The information such as the index number of traveling wave beam.Terminal device determines wave beam by the DCI, is led on the wave beam with target BS Letter.It can be avoided terminal device and carry out uplink beam scanning, to reduce the time delay of cell switching, while can be avoided target base It stands and carries out downlink wave beam scanning, to reduce the time delay of cell switching.

With reference to first aspect with above-mentioned implementation, in certain possible implementations, which is upgoing wave At least one of beam and downlink wave beam wave beam.

Second aspect provides a kind of communication means, comprising: terminal device determines according to the first ascending resource set One wave beam is appointed in multiple wave beams that first wave beam is first network equipment to be determined according to the measurement result that the terminal device reports It anticipates a wave beam, which includes at least one ascending resource, and first network equipment is for the terminal device The network equipment of Target cell is provided；The terminal device is communicated by first wave beam and the first network equipment.

In conjunction with second aspect, in certain implementations of second aspect, the terminal device is according to the first ascending resource collection It closes, determines the first wave beam, comprising: the terminal device obtains the first mapping relations, which is used to indicate on multiple Corresponding relationship between row resource collection and multiple wave beams；The terminal device according to first mapping relations, will with this on first The corresponding wave beam of row resource collection is determined as first wave beam.

In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, which is used for Indicate the corresponding relationship between the index of multiple ascending resource set and the mark of multiple wave beams, the terminal device is according on first Row resource collection determines the first wave beam, comprising: the terminal device is according to the first mapping relations, determining and first ascending resource Gather the first identifier of corresponding wave beam；The wave beam that the terminal device indicates the first identifier is determined as first wave beam.

In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, when the terminal device does not obtain When obtaining pre-assigned ascending resource, this method further include: the terminal device receives the downlink control letter of target BS transmission DCI is ceased, which includes at least one of the first mapping relations and first identifier information；The terminal device is according to this on first Row resource collection and the DCI determine first wave beam；Wherein, which is used to indicate the first ascending resource set Corresponding relationship between first wave beam, the first identifier are the mark of first wave beam.

In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, which is upgoing wave At least one of beam and downlink wave beam wave beam.

The third aspect provides a kind of communication device, which has the method design for realizing above-mentioned first aspect In target BS function.These functions can also execute corresponding software realization by hardware realization by hardware. The hardware or software include one or more units corresponding with above-mentioned function.

Fourth aspect provides a kind of communication device, which has the method design for realizing above-mentioned second aspect In terminal device function.These functions can also execute corresponding software realization by hardware realization by hardware. The hardware or software include one or more units corresponding with above-mentioned function.

5th aspect, provides a kind of communication device, including transceiver and processor.Optionally, which further includes storage Device.The processor is for controlling transceiver receiving and transmitting signal, and for storing computer program, which is used for from depositing the memory The computer program is called and run in reservoir, so that the device executes above-mentioned first aspect or first aspect, any one may Implementation in method.

6th aspect, provides a kind of communication device, including transceiver and processor.Optionally, which further includes storage Device.The processor is for controlling transceiver receiving and transmitting signal, and for storing computer program, which is used for from depositing the memory The computer program is called and run in reservoir, so that the device executes above-mentioned second aspect or second aspect, any one may Implementation in method.

7th aspect, provide a kind of communication device, the communication device can be designed for the above method in target BS, Or for the chip in target BS is arranged in.The communication device includes: processor, is coupled with memory, can be used for executing and deposit Instruction in reservoir, to realize, target BS is held in above-mentioned first aspect or first aspect any one possible implementation Capable method.Optionally, which further includes memory.Optionally, which further includes communication interface, processor It is coupled with communication interface.

When the communication device is target BS, which can be transceiver, or, input/output interface.

When the communication device is the chip being configured in target BS, which can be input/output interface.

Optionally, which can be transmission circuit.Optionally, which can be input/output electricity Road.

Eighth aspect provides a kind of communication device, the communication device can be designed for the above method in terminal device, or Person is the chip being arranged in terminal device.The communication device includes: processor, is coupled with memory, can be used for executing storage Instruction in device, to realize in above-mentioned second aspect or second aspect any one possible implementation performed by terminal device Method.Optionally, which further includes memory.Optionally, which further includes communication interface, processor with Communication interface coupling.

When the communication device is terminal device, which can be transceiver, or, input/output interface.

When the communication device is the chip being configured in terminal device, which can be input/output interface.

9th aspect, provides a kind of computer program product, the computer program product includes: computer program generation Code, when the computer program code is run on computers, so that computer executes the method in above-mentioned various aspects.

Tenth aspect, provides a kind of computer-readable medium, and the computer-readable medium storage has program code, when When the computer program code is run on computers, so that computer executes the method in above-mentioned various aspects.

Detailed description of the invention

Fig. 1 shows the schematic diagram of the communication system of the embodiment of the present application.

Fig. 2 shows the schematic interaction figures of cell switching method provided by the embodiments of the present application.

Fig. 3 shows the schematic flow chart of an example cell switching method provided by the embodiments of the present application.

Fig. 4 shows the schematic interaction figure of an example cell switching method provided by the embodiments of the present application.

Fig. 5 shows the mapping relations schematic diagram of an example ascending resource and downlink wave beam provided by the embodiments of the present application.

Fig. 6 shows the schematic interaction figure of another example cell switching method provided by the embodiments of the present application.

Fig. 7 shows the schematic block diagram of an example cell switching device provided by the embodiments of the present application.

Fig. 8 shows the schematic block diagram of another cell switching device provided by the embodiments of the present application.

Fig. 9 shows the schematic block diagram of another cell switching device provided by the embodiments of the present application.

Figure 10 shows the schematic block diagram of another cell switching device provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: long term evolution (long term Evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), the 5th generation (5th generation, 5G) mobile communication system or new wireless (new Radio, NR) communication system and the mobile communication system in future etc..

Fig. 1 shows the communication system 100 of the embodiment of the present application application.The communication system 100 may include at least two Wireless access network equipment (such as the network equipment 110 and network equipment 120), a terminal device (such as terminal device 130).Eventually End equipment is wirelessly connected with wireless access network equipment, and wireless access network equipment passes through wirelessly or non-wirelessly mode and core The connection of heart net equipment.Equipment of the core network is not drawn into Fig. 1, it should be appreciated that equipment of the core network can be with wireless access network equipment Independent different physical equipment is also possible to integrate the logic function of the function of equipment of the core network and wireless access network equipment On the same physical equipment, it can also be and be integrated with the function and partial nothing of part equipment of the core network on a physical equipment The function of line access equipment.Terminal device can be fixed position, be also possible to moveable.Fig. 1 is schematic diagram, should It can also include other network equipments in communication system, can also include such as wireless relay apparatus and wireless backhaul equipment, in Fig. 1 In be not drawn into.Embodiments herein is to equipment of the core network, wireless access network equipment and the end for including in the mobile communication system The quantity of end equipment is without limitation.

In mobile communication system 100, wireless access network equipment 120 is that terminal device is wirelessly linked into the shifting Access device in dynamic communication system.The wireless access network equipment 120 may is that base station, evolved base station (evolved node B, base station), Home eNodeB, in Wireless Fidelity (wireless fidelity, WIFI) system access point (access point, AP), wireless relay nodes, wireless backhaul node, transfer point (transmission point, TP) or transmitting and receiving point (transmission and reception point, TRP) etc. can also be the gNB in NR system, alternatively, can also be The component of composition base station or a part of equipment, such as converge unit (central unit, CU), distributed unit (distributed Unit, DU) or Base Band Unit (baseband unit, BBU) etc..It should be understood that in embodiments herein, to wireless access network Particular technique used by equipment and specific equipment form are without limitation.In this application, wireless access network equipment abbreviation network Equipment, if in this application, the network equipment refers both to wireless access network equipment without specified otherwise.The network equipment 110 and network are set Standby 120 can be the equipment with terminal equipment in communication, and each network equipment can provide communication overlay for specific geographic area, And it can be communicated with the terminal device being located in the overlay area (cell).In this application, the network equipment can be Refer to the network equipment itself, is also possible to be applied to complete the chip of wireless communication process function in the network equipment.

In addition, in the embodiment of the present application, access network equipment provides service for cell, terminal device is used by the cell Transfer resource (for example, frequency domain resource, in other words, frequency spectrum resource) communicated with access network equipment, which, which can be, connects The corresponding cell of log equipment (such as base station), cell may belong to macro base station, also may belong to cell (small cell) Corresponding base station, cell here may include: urban cells (metro cell), Microcell (micro cell), pico- Cell (pico cell), Femto cell (femto cell) etc., these cells are small with coverage area, transmission power is low The characteristics of, suitable for providing the data transport service of high-speed.

Terminal device in the mobile communication system 100 be referred to as terminal, user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) etc..In the embodiment of the present application Terminal device can be mobile phone (mobile phone), tablet computer (Pad), the computer with radio transmission-receiving function, can also be Applied to virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), Industry Control (industrial control), unmanned (self driving), tele-medicine (remote medical), smart grid (smart grid), transportation safety (transportation safety), smart city (smart city) and wisdom family Wireless terminal in scenes such as (smart home).By aforementioned terminals equipment and it can be applied to aforementioned terminals equipment in the application Chip is referred to as terminal device.It should be understood that the embodiment of the present application is to particular technique used by terminal device and specific equipment shape State is without limitation.

Fig. 1 schematically illustrates two network equipments and a terminal device, and optionally, which can be with It may include the terminal device of other quantity, the application in coverage area including multiple network equipments and each network equipment Embodiment does not limit this.Optionally, which can also include network controller, mobile management entity Deng other network entities, the embodiment of the present application is without being limited thereto.

In the description of the embodiment of the present application, it will be carried out so that terminal device 130 is switched to target BS from source base station as an example Explanation.It should be understood that source base station and target BS here can make two different communities under the same base station, it is also possible to not With two cells under base station.As shown in Figure 1, terminal device 130 in source base station 110, can switch band position 2 from position 1, Realize the switching of the different community under the same base station 110；It can also be switched to target BS 120 from source base station 110, such as Fig. 1 The switching of position 3 is arrived in middle position 1, realizes the switching between the different community under different base station.For both handoff scenarios, all it is Whether the switching carried out as unit of cell, source cell and Target cell are located in the same base station, and the application does not limit.Under Face will mainly be described in detail so that terminal device 130 is switched to target BS from source base station as an example.

Fig. 2 is that terminal device realizes the process schematic that target BS is switched to from source base station.As shown in Fig. 2, cell is cut The process of changing specifically includes the following four stage.

1, the control stage is measured

Measuring the control stage includes step 1-2 in Fig. 2.Terminal device is initially communicated with source base station, and source base station is to end End sends measuring control information, after terminal device receives measuring control information, is measured based on measuring control information.Work as measurement After report reporting condition meets, terminal device is to source base station report measurement results.Specifically, source base station is according to the fortune of terminal device The execution such as row characteristic and position feature measurement control program, requires terminal device in a manner of event triggering or periodic report Corresponding measurement report is provided, the decision of triggering switching is made with source base station.

2, handoff preparation phase

Handoff preparation phase includes step 3-7 in Fig. 2, after the measurement result that source base station receiving terminal apparatus is sent back to, is based on The measurement result that terminal reports switches over judgement, source base station can according to the service quality of the business of terminal device and surrounding without Situations such as line resource, switches over selection, determines the target BS of terminal device switching, and send switching request to target BS Message (handover request, HO request).Until target BS receives HO request, detection obtains the signaling Essential attribute, wireless parameter, measurement result of the terminal device of carrying etc., target BS carry out admission control, determine and receive eventually After end equipment, handoff request acknowledgment message (handover request acknowledgement, HO req ACK) letter is sent It enables to source base station, then wireless heterogeneous networks (radio resource control, RRC) connection reconfiguration is sent by source base station and sets and disappears Breath, i.e. switching command indicate the completion of switching preparation to terminal device.

In the switching command of RRC information, the information of terminal device to be supplied to is further comprised, it is wireless including new cell Network Temporary Identifier (Cell Radio Network Temporary Identifier, C-RNTI), random access channel information And system information block (system information block, SIB) etc., can help terminal in the shortest time with target Base station is got in touch, and communication is restored.

3, handover execution stage

After handover execution stage includes the steps that 8-11 in Fig. 2, terminal device receive switching command, according in switching command The parameter of carrying accesses target BS.

Terminal device just disconnects the connection with source base station once switching is executed, and issues random access to target BS Request, it is desirable that it provides TA adjusted value, completes uplink synchronous.In this course, downlink data is passed through caching side by source base station Formula is to target BS；After link establishment, then it is issued to terminal device, it is ensured that data lossless loses.

Target BS detects the request that terminal device issues within the random access period, sends random access to terminal and asks The confirmation signaling asked distributes ascending resource, replys TA adjusted value, helps terminal device synchronous access after receiving this confirmation signaling Target BS.Hereafter, terminal device sends switching to target BS and completes signaling, synchronous with target BS completion, mark switching Execution smoothly completes, and terminal device and target BS restore normal communication.

4, switch the completion stage

After the switching completion stage includes the steps that 12-18 in Fig. 2, terminal device and target BS restore communication, target base Transmitting path of standing switching request is to access gateway, it is desirable that changes the downstream data paths and more new user interface of terminal device.It connects End mark (end marker) signaling is sent after the completion of function Access Gateway to source base station, to indicate data cached end, and is led to Know that target BS updates to complete.Subsequent target BS notice source base station switching is completed, it is allowed to discharge the system resource that terminal occupies. Source base station transmission is data cached, until encountering end marker mark.

It is the detailed process of current cell switching above, in RACH-less handover mechanism, if switching command is configured Instruction and pre-assigned UL grant comprising Timing Advance (timing advance, TA), for example, the TA value of source base station Can be recycled and reused for target BS or terminal device to target BS TA value be 0.Specifically in handoff preparation phase Step 6, step 7 can be configured, and terminal device can be come after being switched to target BS using the UL grant of predistribution It sends handoff completion message and completes switching；If not including pre-assigned UL grant in switching command, terminal device is answered When the PDCCH of monitoring objective base station receives UL grant, terminal device is available using first after being synchronized to target BS UL grant carry out uplink.

In the high-frequency operation of NR, in order to promote the coverage rate of cell, improved using large-scale aerial array wireless The transmission quality of signal, i.e. beam forming technique.Beam forming is used for multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO) antenna system in, be the combination of antenna technology and Digital Signal Processing, purpose is used for The transmission and reception of phasing signal.Due to using multiple groups antenna, the wireless signal from transmitting terminal to receiving end is by a plurality of Path transmission, for example, base station is successively using the beam transmission wireless signal being differently directed, the process quilt during downlink Referred to as beam scanning (beam sweeping)；At the same time, terminal device measures the wireless signal that obstructed beam transmission goes out, and To base station report relevant information, base station determines best launching beam according to the information of user report.But terminal device also has day Linear array, i.e., in beam forming procedure, urgent need will consider launching beam, it is also desirable to which consideration receives wave beam.In other words, in uplink In the process, terminal device is also required to scan for uplink beam to execute uplink, such as executes Physical Uplink Shared Channel The transmission of (physical uplink shared channel, PUSCH).Beam scanning process in base station and terminal device In, higher time delay can be caused.In cell switch process, terminal device may need to adopt in pre-assigned UL grant The transmission of PUSCH is executed with uplink beam scanning, this will cause the power consumption and switching delay of very high terminal device.Moreover, Target BS needs to retain in each possible uplink beam the periodical UL grant resource of predistribution, and this reduces moneys Source service efficiency.

In order to reduce the time delay of cell switching, the embodiment of the present application will provide a kind of method that cell switches, by cutting The UL grant information including one or more ascending resource set in order is changed, and passes through each UL grant and wave beam (example Such as uplink beam or downlink wave beam) between mapping relations, determine the wave beam communicated between target BS and terminal device；Or Show beam information by switching command middle finger again, such as the mark or index etc. of wave beam, determine target BS and terminal device it Between the wave beam that communicates；Or after the completion of switching, in the Downlink Control Information (Downlink that target BS is sent to terminal device Control Information, DCI) in include mapping relations between UL grant and wave beam information and/or wave beam Mark or index information, terminal device pass through the determining wave beam communicated between target BS of the DCI.This method can be reduced The beam scanning process of base station and terminal device in cell switch process, to reduce the time delay of cell switch process.

Fig. 3 is the schematic diagram of the method for an example cell switching provided by the embodiments of the present application, and this method 300 can be applied to Target BS in above-mentioned communication system 100, as shown in figure 3, method 300 specifically includes the following contents.

S301, first network equipment determine the first ascending resource set that terminal device uses, the first ascending resource collection Closing includes at least one ascending resource, which is to provide the network equipment of Target cell for the terminal device.

In the description of the embodiment of the present application, the network equipment for providing target BS for terminal device is known as first network Equipment will be known as second network equipment for the network equipment for providing source base station for terminal device, it should be appreciated that first network equipment and Second network equipment can be the same network equipment, be also possible to the different network equipments, such as different base stations, the application This is not limited.

It should be understood that source base station divides in advance to terminal device before source base station sends switching request message to target BS With multiple ascending resource UL grant.Pre-assigned multiple UL grant are configured in one or more set, each Set includes one or more pre-assigned UL grant.

It should be understood that UL grant included by the first ascending resource set can be RRC signaling configuration, Huo Zheyi here A little semi-static UL grant resources.In addition, it is terminal equipment configuration, target that the first ascending resource set, which can be source base station, Base station carries out interactive interfacing with source base station in cell switch process to know, being also possible to source base station is terminal equipment configuration , the application to the configuration mode of the first ascending resource without limitation.

S302, the first network equipment determine the first wave beam according to the first ascending resource set, which is this First network equipment is according to any one wave beam in the determining multiple wave beams of the measurement result that the terminal device reports.

It should be understood that the first wave beam refers to the wave beam of target BS and terminal equipment in communication here, and optionally, the first wave Beam is at least one of uplink beam and downlink wave beam wave beam.

A kind of method of the first wave beam of determination is introduced so that the first wave beam is downlink wave beam as an example.Terminal device can be passed in data Downlink wave beam is measured before defeated, such as the measurement of the downlink wave beam to source base station and target BS, and wave beam is measured As a result be reported to source base station, source base station can by X2 interface by terminal device to the measurement result of the downlink wave beam of target BS It is forwarded to target BS.Based on these measurement results, target BS can choose the downlink wave beam with good quality, and establish Mapping relations between the downlink wave beam and ascending resource UL grant of the good quality, i.e., the first mapping in the application are closed System, it is possible to understand that first mapping relations are used to indicate the corresponding pass between the first ascending resource set and first wave beam System.The target BS obtain the first mapping relations, according in S301 determine for uplink the first ascending resource set and First mapping relations determine first wave beam.

In alternatively possible implementation, which determines first wave beam according to the first ascending resource set First identifier, and first wave beam is determined according to the first identifier.

A kind of method of the first wave beam of determination is introduced so that the first wave beam is uplink beam as an example.In target BS and source base station Role transforming in, the uplink signal of terminal device is detected by target BS, therefore target BS knows terminal device To the suitable uplink beam of target BS.In certain co-sited scenes, target BS is identical as the TA of source base station, therefore target Base station can be detected the uplink signal of terminal device by source base station notice, with identification terminal equipment to the suitable of target BS Uplink beam.Therefore, the wave beam where when UE can be told to send upstream data in RACH-less handoff procedure, to reduce The uplink beam of terminal device scans.

Specifically, target BS can configure pre-assigned UL in the switching response message for issuing source base station When grant, information of one or more uplink beams, such as the first identifier or the index that carry uplink beam etc. may also indicate that Information.Terminal device divides when receiving the handoff completion message of source base station transmission according to what is notified in handoff completion message in advance The information of the UL grant and one or more uplink beams that match, such as first identifier determine first wave beam, in the first wave Upstream data is sent to target BS using pre-assigned UL grant in beam.

In alternatively possible implementation, when the terminal device there is no pre-assigned ascending resource, Target BS to terminal device send Downlink Control Information DCI, the DCI include above-mentioned the first introduced mapping relation information and At least one of first identifier information.Terminal device determines the according to DCI by receiving the DCI of target BS transmission One wave beam.

Specifically, it may include the first mapping relation information in DCI, such as indicate the first ascending resource set and downlink Corresponding relationship between wave beam, terminal device determine the downlink wave beam of target BS according to first mapping relations；Alternatively, DCI In include the information of one or more uplink beams, such as information, the terminal such as first identifier or index for carrying uplink beam are set It is standby that uplink beam is determined according to the first identifier；Or simultaneously including the information and upgoing wave of first mapping relations in DCI The information of beam, terminal device determine the downlink wave beam of uplink beam and target BS by DCI.Above method can reduce wave beam Handover delay caused by scanning process.

S303, the first network equipment pass through first wave beam and the terminal equipment in communication.

The method that an example cell provided by the embodiments of the present application switches is described from target BS side above, below for this Method will specifically be discussed in detail from the interactive process between terminal device, source base station and target BS.

Fig. 4 is the schematic interaction figure of the method for an example cell switching provided by the embodiments of the present application.Below to method 400 Each step be described in detail.

S401, source base station send switching request message to target BS, which sets terminal for requesting Standby to switch to target BS from the source base station, which includes the measurement result that terminal device reports.

Optionally, before source base station sends switching request message to target BS, source base station divides in advance to terminal device With multiple ascending resource UL grant.Pre-assigned multiple UL grant are configured in one or more set, each Set includes one or more pre-assigned UL grant.For example, set 1 include 2 UL grant, call number be 1a and 1b；Set 2 includes 1 UL grant, call number 2；Set 3 includes 1 UL grant, call number 3.

After terminal device receives the measuring control information of source base station transmission, measured based on measuring control information.Example Such as, terminal device can measure the downlink wave beam of target BS, and measurement result is reported to source base station.Source base station can be with The measurement result of terminal device is forwarded to target BS by X2 interface.

S402, target BS carry out admission control according to the measurement result of terminal device.

Optionally, target BS obtains the first mapping relations, which is used to indicate UL grant and downlink Mapping relations between wave beam.

Specifically, the switching request message that target BS is sent according to source base station obtain the terminal device essential attribute, The information such as wireless parameter, measurement result carry out admission control.After target BS determines receiving terminal apparatus, it is based on terminal device Measurement result, can choose the downlink wave beam with good quality for downlink data transmission.

In the multi-beam operation scenario of high frequency, in RACH-less handoff procedure, terminal device is in pre-assigned UL The PUSCH transmission of target BS is gone in grant.Then target BS will be scanned using downlink wave beam to send addressing terminal The PDCCH of device identification, i.e., by the way that multiple downlink wave beams are detected and scanned, the optimum beam for selecting transmission quality good, Beam scanning process may cause higher time delay.In order to save this time delay, it is preferred that target BS knows that terminal device is current The downlink wave beam at place.

Optionally, target BS can be gathered according to the UL grant for being pre-assigned to terminal device and downlink wave beam determines First mapping relations.Fig. 5 is the mapping relations schematic diagram of ascending resource and downlink wave beam, and table 1 is ascending resource and downlink wave beam Specific mapping content.In conjunction with Fig. 3 and table 1, in the case where a kind of possible, by first distribute 4 UL grant (UL Grant 1a, UL grant 1b, UL grant 2 and UL grant 3) it is configured to 3 set (set 1, set 2 and set 3) in, each set includes at least a UL grant；One set corresponds at least one downlink wave beam, such as 1 pair of set It should gather 3 in downlink wave beam 1 and correspond to downlink wave beam 2 and 3.

Table 1

It should be understood that may include the corresponding pass between ascending resource set and the mark of downlink wave beam in the first mapping relations System also may include the ascending resource index in ascending resource set and the corresponding relationship between the mark of downlink wave beam.Here The mark of downlink wave beam can be synchronization signal block (synchronization signal block, SS block) mark or The mark of channel state information reference signals (Channel state information reference signal, CSI-RS) Deng.

It should also be understood that ascending resource index can be corresponded with ascending resource scheduling content, ascending resource scheduling content It may include the transmission cycle or Transmission Time Interval (Transmission Time Interval, TTI) of ascending resource, such as The Elementary Time Unit of transmission is a TTI, and TTI length can be 1ms；Ascending resource scheduling content can also include that uplink provides The starting time slots or symbol in source, the Elementary Time Unit of transmission can be one or more time slots, be also possible to one or more Symbol, ascending resource index can indicate the time slot or symbol of available starting ascending resource；Ascending resource content can also wrap Include information, modulation and the encoding mechanism of the Physical Resource Block (Physical Resource Block, PRB) of ascending resource (Modulation and Coding Scheme, MCS), time slot or symbol lengths digital information etc..The application does not do this It limits.

It should be understood that the first mapping relations that target BS obtains here can be what target BS determined, it is also possible to source What base station determined is sent to target BS, or be pre-configured, the application does not limit this.

It should also be understood that the first mapping relations can be the mapping between UL grant and the downlink wave beam of target BS here Relationship can be the corresponding relationship between UL grant and the uplink beam of terminal device, be also possible to UL grant, target base The corresponding relationship shared between the uplink beam of the downlink wave beam, terminal device stood, the application do not limit this.

In alternatively possible implementation, target BS determines the of first wave beam according to the first ascending resource set One mark, and first wave beam is determined according to the first identifier.

S403, target BS send switching response message to source base station.

Optionally, which includes the information of the first mapping relations.Correspondingly, source base station receives target BS The switching response message of transmission, obtains the information of first mapping relations.

Alternatively, the switching response message includes the information of one or more uplink beams, such as the first mark of uplink beam The information such as knowledge or index.

S404, source base station send radio resource control RRC connection reconfiguration message to the terminal device.

Optionally, which sets the information that message includes first mapping relations.Correspondingly, terminal device connects Receive the radio resource control RRC connection reconfiguration message that source base station is sent.

Alternatively, the RRC connection reconfiguration sets the information that message includes one or more uplink beams, such as the of uplink beam The information such as one mark or index.

S405, the terminal device set message according to the RRC connection reconfiguration, and down-going synchronous is to target BS, and according to the RRC Message determines UL grant and the first wave beam for communicating with target BS.

Terminal device is after the RRC connection reconfiguration for receiving source base station transmission sets message, and handoff preparation phase is complete at this time At being prepared to enter into handover execution stage.Terminal device will down-going synchronous first to target BS, it is suitable in selection target base station One or more downlink wave beams are received.

Optionally, terminal device can be set according to RRC connection reconfiguration the first mapping relations for including in message information it is true Set the goal the downlink wave beam of base station, the corresponding one or more UL grant set of received downlink wave beam UL grant Middle send includes handoff completion message.

For example, by taking the mapping relations enumerated in Fig. 5 as an example, after terminal device is accomplished to the down-going synchronous of target BS, such as Fruit has received the wave beam 1 of target BS transmission, then correspondingly directly using ascending resource 1a or ascending resource 1b come to target base It stands and sends handoff completion message；If terminal device has received the wave beam 2 of target BS transmission, uplink is correspondingly directly utilized Resource 2 or ascending resource 3 send handoff completion message to target BS；If terminal device has received target BS transmission Wave beam 3 then correspondingly directly sends handoff completion message to target BS using ascending resource 3.

Alternatively, terminal device can set the letter of the first identifier for the first wave beam for including in message according to RRC connection reconfiguration It ceases and determines uplink beam.Terminal device directly determines uplink beam according to the first identifier, and using pre- in the uplink beam The UL grant first distributed carries out uplink to target BS.Before this method can reduce terminal device progress uplink Uplink beam scanning, to reduce the time delay of cell switch process；Meanwhile target BS is not needed in each possible upgoing wave The periodical UL grant that predistribution is reserved in beam, can be improved the utilization rate of ascending resource.

It should be understood that above provide the methods of two kinds of cell switching middle finger oscillography beams, such as by including in handover request The mapping relation information of ascending resource UL grant and downlink wave beam, to realize that target BS can be sent according to terminal device UL grant determine downlink wave beam, and the downlink wave beam is used for downlink transfer, reduces base station and carry out downlink wave beam scanning and draws The time delay risen；Or by including the information of ascending resource UL grant and uplink beam in handover request, to realize terminal Equipment can determine uplink beam according to the instruction information of the uplink beam, and carry out uplink in the uplink beam, reduce Terminal device carries out time delay caused by uplink beam scans.Both the above method can be applied independently in the field of cell switching Jing Zhong can be realized the purpose for reducing handover delay, in addition, both the above method can also be used in combination, i.e., terminal device connects Both included the information for being used to indicate the mapping relations of UL grant and downlink wave beam in the handover request received, and had further included for referring to Show the information of uplink beam, to reduce time delay caused by the beam scanning of uplink and downlink simultaneously, improves making for ascending resource With rate.

It should also be understood that handover request mentioned here may include in handoff procedure, source base station is sent to target BS Switching request message, the switching response message that is sent to source base station of target BS and source base station sent to terminal device RRC links reconfiguration message etc., and the application does not limit this.

S406, terminal device sends handoff completion message to target BS by determining UL grant, for indicating this Terminal device completes switching, and RRC establishment of connection is completed.

S407, UL grant determines the received downlink wave beam of terminal device to target BS based on the received.

S408, target BS carry out downlink transfer to downlink wave beam.

Optionally, the RRC connection reconfiguration that target BS receiving terminal apparatus is sent sets and completes message, and according to receiving For the UL grant of uplink and the information of the first mapping relations, the received one or more downlinks of terminal device are determined Wave beam；Then target BS can carry out downlink transfer on the downlink wave beam.

The cell switching method provided through the above scheme, in the handoff procedure of RACH-less, by that will allocate in advance Ascending resource UL grant be configured in one or more set, each set includes at least a UL grant, establishes UL The mapping relations of grant set and downlink wave beam, the UL grant that target BS can be sent by receiving terminal apparatus are determined The received downlink wave beam of terminal device institute, and downlink transfer is carried out on the downlink wave beam；Or target BS is by UL grant The mark or index information of the uplink beam at place notify that terminal device, terminal device selects the uplink beam to carry out uplink biography It is defeated.This method can reduce the downlink wave beam scanning of target BS, to reduce the time delay of cell switch process.

It should be understood that the transmission (for example, uplink or downlink transfer) of data can be based on the transmission for exempting from scheduling, it can also To be that the scheduling based on base station carries out.Scheduled transmission can refer to that base station is allocated in advance and informs the multiple transmission moneys of terminal device Source；When terminal device has transmitting uplink data demand, at least one biography is selected from the pre-assigned multiple transfer resources in base station Defeated resource sends upstream data using selected transfer resource；One in pre-assigned multiple transfer resources of base station Or the upstream data that terminal device is sent is detected on multiple transfer resources.The process of specific scheduled transmission can be base station to end End equipment sends control channel, such as PDCCH.The control channel can be carried using different DCI formats for dispatching object Manage DSCH Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) or Physical Uplink Shared Channel The scheduling information of (Physical Uplink Shared Channel, PUSCH "), which may include such as resource Information is distributed, modulation coding scheme etc. controls information.Terminal device detects control channel, and according in the control channel detected The scheduling information of carrying carries out the reception of downstream data channel or the transmission of uplink data channels.

In LTE, when terminal device does not obtain pre-assigned UL grant from the switching command that base station is sent, Terminal device should monitor the PDCCH of base station, i.e., the configuration information of UL grant is obtained according to DCI.Therefore, previous embodiment In the RRC link that is sent to terminal device of the switching response message that is sent to source base station when target BS and source base station reconfigure and disappear It, can be after terminal device and target BS establish connection, from target BS to end when there is no the UL grant of configuration in breath End equipment sends DCI to configure UL grant, but terminal device and target BS are also needed to carry out beam scanning selection Suitable wave beam, therefore also will increase the time delay of cell switch process.

The embodiment of the present application provides the method for another cell switching, passes through what is sent in target BS to terminal device It include UL grant set and the mapping relation information of wave beam and/or the mark or index information of wave beam in DCI, so that terminal is set For after the DCI for receiving target BS transmission, according to the determining wave beam with target BS communication of the information in DCI, reduction is small Beam scanning in area's handoff procedure reduces handover delay.

Fig. 6 is the schematic interaction figure of the method for another cell switching provided by the embodiments of the present application.This method 600 can For when the terminal device there is no pre-assigned ascending resource.Each step of method 600 is carried out below detailed Thin explanation.

S601, target BS send Downlink Control Information DCI to terminal device, which includes the first instruction Information.Correspondingly, terminal device receives DCI, obtains the first instruction information.

It should be understood that after terminal device receives the switching command of source base station transmission, down-going synchronous to target BS, terminal Equipment can choose one or more downlink wave beams and be received, and in other words, terminal device receives what target BS was sent PDCCH to obtain the DCI carried in PDCCH, and then obtains the first instruction information for including in DCI.

Optionally, the first instruction information may include at least one of the first mapping relations and first identifier information, In, first mapping relations are used to indicate the corresponding relationship between the first ascending resource set and first wave beam, The first identifier is the mark of first wave beam.

Specifically, which may include the information of the first mapping relations, which can be The mapping relations being used to indicate between UL grant and downlink wave beam.About first mapping relations, before had it is detailed Illustrate, details are not described herein again.

Alternatively, the first instruction information can be the information including at least one uplink beam, such as the mark of uplink beam The information such as the index number of knowledge or uplink beam.

Or the first instruction information includes the information of the first mapping relations and the information of at least one uplink beam.

S602, terminal device determine the uplink beam being used for transmission according to the first instruction information.

S603, terminal device carry out uplink on the uplink beam.

Terminal device receives DCI, obtains the first instruction information for including in DCI.If the first instruction information includes The information of mapping relations between UL grant set and downlink wave beam, then, terminal device sends UL grant to target BS Afterwards, target BS receives UL grant, and the ULgrant set that UL grant belongs to based on the received, determines that at least one is right The downlink wave beam answered carries out downlink transfer at least one corresponding downlink wave beam at this.It can be avoided target BS to carry out down Traveling wave beam scanning, to reduce the time delay of cell switching.

In order to save the signaling overheads in DCI, the mapping relations of UL grant set to downlink beam can be implicit. Such as the appearance sequence of UL grant set is implicitly corresponding to the SS block mark of target BS and/or CSI-RS mark. It should be understood that being usually implicitly here a kind of pre-configured corresponding relationship, such as preconfigured by RRC signaling, or just It is a kind of well known corresponding relationship.The application does not limit this.

Alternatively, when the first instruction information includes the information of at least one uplink beam, such as the first instruction information includes upper The mark of traveling wave beam perhaps the information such as index number of uplink beam when terminal device using the uplink beam mark or The index number of uplink beam determines uplink beam, and uplink is carried out on the uplink beam.Can be avoided terminal device into Row uplink beam scanning, to reduce the time delay of cell switching.

Or when the first instruction information include simultaneously mapping relations between UL grant and downlink wave beam information, The information of a few uplink beam, then terminal device determines uplink beam first with the information of the uplink beam, on this Uplink is carried out on traveling wave beam；After target BS receives the UL grant of the uplink beam, based on the received UL grant and Mapping relations between downlink wave beam determine at least one corresponding downlink wave beam, carry out downlink transfer.End can be avoided simultaneously End equipment carries out uplink beam scanning, and target BS carries out downlink wave beam scanning, to reduce the time delay of cell switching.

In conclusion the method switched by cell provided by the embodiments of the present application, indicates ascending resource set by DCI Corresponding relationship between wave beam, such as the mapping relations of instruction UL grant set and downlink wave beam, target BS can lead to The UL grant for crossing receiving terminal apparatus transmission determines downlink wave beam where terminal device, and under carrying out on the downlink wave beam Row transmission；Or target BS notifies the mark of the uplink beam where UL grant or index information to terminal device, eventually End equipment selects the uplink beam to carry out uplink.This method can reduce the downlink wave beam scanning of target BS, to drop The time delay of low cell switch process.

It should be understood that magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution of each process is suitable Sequence should be determined by its function and internal logic, and the implementation process without coping with the embodiment of the present application constitutes any restriction.

Above in conjunction with Fig. 1 to Fig. 6, the cell switching method according to the embodiment of the present application is described in detail, it below will knot Fig. 7 to Figure 10 is closed, the cell switching device according to the embodiment of the present application is described in detail.

Fig. 7 shows communication device 700 provided by the embodiments of the present application, the device 700 can correspond to the above method 300 or Target BS described in method 400 or method 600 is also possible to chip or component applied to target BS, also, the dress Each module or unit in 700 is set to be respectively used to execute in the above method 300 or method 400 or method 600 performed by target BS It is each movement or treatment process, as shown in fig. 7, the communication device 700 may include: determination unit 710 and communication unit 720.

Determination unit 710, the first ascending resource set used for determining terminal device, the first ascending resource set Including at least one ascending resource, which is to provide the network equipment of Target cell for the terminal device.

Determination unit 710 is also used to determine the first wave beam according to the first ascending resource set, first wave beam be this One network equipment is according to any one wave beam in the determining multiple wave beams of the measurement result that the terminal device reports.

Communication unit 720, for passing through first wave beam and the terminal equipment in communication.

Optionally, which further includes acquiring unit, and for obtaining the first mapping relations, which is used Corresponding relationship between instruction the first ascending resource set and first wave beam.Determination unit 710, be also used to according to this Wave beam corresponding with the first ascending resource set is determined as first wave beam by one mapping relations.

Optionally, first mapping relations be used to indicate multiple ascending resource set index and multiple wave beams mark it Between corresponding relationship, which is also used to according to the first mapping relations, and determination is corresponding with the first ascending resource set Wave beam first identifier；The wave beam that the first identifier is indicated is determined as first wave beam.

Optionally, when the terminal device there is no pre-assigned ascending resource, which is used for this Terminal device sends Downlink Control Information DCI, which includes at least one of the first mapping relations and first identifier information, Wherein, which is used to indicate the corresponding relationship between the first ascending resource set and first wave beam, this One is identified as the mark of first wave beam.

Optionally, which is at least one of uplink beam and downlink wave beam wave beam.

It should be understood that device 700 here is embodied in the form of functional unit.Here term " unit " can refer to using special There are integrated circuit (application specific integrated circuit, ASIC), electronic circuit, for executing one The processor (such as shared processor, proprietary processor or group processor etc.) and storage of a or multiple softwares or firmware program Device merges logic circuit and/or other appropriate components for supporting described function.In an optional example, this field skill Art personnel are appreciated that device 700 can be specially the target BS in above-described embodiment, and device 700 can be used in execution Each process corresponding with target BS and/or step in embodiment of the method are stated, to avoid repeating, details are not described herein.

Fig. 8 shows cell switching device 800 provided by the embodiments of the present application, which can correspond to the above method 300 or method 400 or method 600 described in terminal device, be also possible to the chip or component applied to terminal device, and And each module or unit are respectively used to execute terminal device in the above method 300 or method 400 or method 600 in the device 800 Performed each movement or treatment process, as shown in figure 8, the communication device 800 may include: determination unit 810 and communication unit Member 820.

Determination unit 810, for determining the first wave beam, which is the first net according to the first ascending resource set Network equipment is according to any one wave beam, first ascending resource in the determining multiple wave beams of the measurement result that the terminal device reports Set includes at least one ascending resource.

Communication unit 820, for being communicated by first wave beam and the target BS.

Optionally, which further includes acquiring unit, and for obtaining the first mapping relations, which is used Corresponding relationship between the multiple ascending resource set of instruction and multiple wave beams.The determination unit 810 is also used to basis Wave beam corresponding with the first ascending resource set is determined as first wave beam by first mapping relations.

Optionally, first mapping relations be used to indicate multiple ascending resource set index and multiple wave beams mark it Between corresponding relationship, which is also used to: determining with the first ascending resource set pair according to the first mapping relations The first identifier for the wave beam answered；The wave beam that the first identifier is indicated is determined as first wave beam.

Optionally, when the communication device there is no pre-assigned ascending resource, which is also used to receive The Downlink Control Information DCI that the target BS is sent, the DCI include at least one in first mapping relations and the first identifier Kind information, wherein first mapping relations are used to indicate the corresponding pass between the first ascending resource set and first wave beam System, the first identifier are the mark of first wave beam.

The determination unit 810 is also used to determine first wave beam according to the first ascending resource set and the DCI.

It should be understood that device 800 here is embodied in the form of functional unit.Here term " unit " can refer to using special There are integrated circuit (application specific integrated circuit, ASIC), electronic circuit, for executing one The processor (such as shared processor, proprietary processor or group processor etc.) and storage of a or multiple softwares or firmware program Device merges logic circuit and/or other appropriate components for supporting described function.In an optional example, this field skill Art personnel are appreciated that device 800 can be specially the terminal device in above-described embodiment, and device 800 can be used in execution Each process corresponding with terminal device and/or step in embodiment of the method are stated, to avoid repeating, details are not described herein.

Fig. 9 is the structural schematic diagram of communication device 900 provided by the embodiments of the present application.As shown in figure 9, the communication device 900 (such as base stations) include processor 910 and transceiver 920.Optionally, which further includes memory 930.Its In, it is communicated with each other between processor 910, transceiver 920 and memory 930 by internal connecting path, transmitting control and/or number It is believed that number, the memory 930 is for storing computer program, and the processor 910 is for calling and running from the memory 930 The computer program, to control 920 receiving and transmitting signal of transceiver.

Above-mentioned processor 910 and memory 930 can synthesize a processing unit, and processor 910 is for executing memory The program code stored in 930 realizes the function of base station in above method embodiment.When specific implementation, the memory 930 It can integrate in processor 910, or independently of processor 910.Transceiver 920 can be by way of transmission circuit come real It is existing.

Above-mentioned communication device can also include antenna 940, downlink data or downlink control for exporting transceiver 920 Signaling is sent by wireless signal, or will upstream data or upstream control signaling receive after be sent to transceiver 820 into The processing of one step.

It should be understood that the device 900 can correspond to the target BS in the method 400 according to the embodiment of the present application, the device 900 are also possible to chip or component applied to target BS.Also, each module in the device 900 realizes the above method 400 Or the corresponding process in method 600, specifically, the memory 930 is for storing program code, so that processor 910 is executing When the program code, the processor 910 is controlled for executing in S402 and S407 or method 600 in method 400 S602；The transceiver 920 is used to execute S401, S403, S406, S408 in method 400, or executes in method 600 S601 and S603, the detailed process that each unit executes above-mentioned corresponding steps have been described in detail in method 400 and method 600, For sake of simplicity, details are not described herein.

Figure 10 is the structural schematic diagram of terminal device 1000 provided by the embodiments of the present application.As shown in Figure 10, which sets Standby 1000 include processor 1010 and transceiver 1020.Optionally, which further includes memory 1030.Wherein, It is communicated with each other between processor 1010, transceiver 1020 and memory 1030 by internal connecting path, transmitting control and/or number It is believed that number, the memory 1030 is for storing computer program, and the processor 1010 from the memory 1030 for calling simultaneously The computer program is run, to control 1020 receiving and transmitting signal of transceiver.

Above-mentioned processor 1010 and memory 1030 can synthesize a processing unit, and processor 1010 is for executing storage The program code stored in device 1030 realizes the function of terminal device in above method embodiment.When specific implementation, the storage Device 1030 also can integrate in processor 1010, or independently of processor 1010.Transceiver 1020 can pass through transmitting-receiving electricity The mode on road is realized.

Above-mentioned terminal device can also include antenna 1040, upstream data or uplink control for exporting transceiver 1020 Signaling processed is sent by wireless signal, or is sent to transceiver 1020 after downlink data or descending control signaling are received It is further processed.

It should be understood that the terminal that the device 1000 can correspond in method 400 or method 600 according to the embodiment of the present application is set Standby, which is also possible to chip or component applied to terminal device.Also, each module in the device 1000 is realized Corresponding process in method 400 or method 600, specifically, the memory 1030 is for storing program code, so that processor 1010 when executing the program code, controls the processor 1010 for executing in S405 or method 600 in method 400 S602；The transceiver 1020 is used to execute S404, S406 and S408 in method 400, or executes the S601 in method 600 And S603, the detailed process that each unit executes above-mentioned corresponding steps have been described in detail in method 400 and method 600, in order to Succinctly, it is not added and repeats herein.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps, can be realized in a manner of the combination of electronic hardware or computer software and electronic hardware.These function It can be implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional skill Art personnel can use different methods to achieve the described function each specific application, but this realization should not be recognized For beyond scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and is not added repeats herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, the division of the unit, Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with In conjunction with.Another point, shown or discussed mutual coupling or communication connection can be through some interfaces, device or list The indirect coupling or communication connection of member.

It, can also be in addition, can integrate in a physical entity in each functional unit in each embodiment of the application It is that each unit individually corresponds to a physical entity, can also be integrated in two or more units in a physical entity.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (read-only memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (random access memory, RAM), magnetic or disk.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims

1. a kind of communication means characterized by comprising

First network equipment determines that the first ascending resource set that terminal device uses, the first ascending resource set include extremely A few ascending resource, the first network equipment is to provide the network equipment of Target cell for the terminal device；

The first network equipment determines that the first wave beam, first wave beam are described according to the first ascending resource set One network equipment is according to any one wave beam in the determining multiple wave beams of the measurement result that the terminal device reports；

The first network equipment passes through first wave beam and the terminal equipment in communication.

2. the method according to claim 1, wherein the first network equipment is according to first ascending resource Gather and determine the first wave beam, comprising:

The first network equipment obtains the first mapping relations, and first mapping relations are used to indicate multiple ascending resource set Corresponding relationship between multiple wave beams；

The first network equipment according to first mapping relations, will wave beam corresponding with the first ascending resource set it is true It is set to first wave beam.

3. according to the method described in claim 2, it is characterized in that, first mapping relations are used to indicate multiple ascending resources Corresponding relationship between the index of set and the mark of multiple wave beams, the first network equipment are closed according to first mapping System, is determined as first wave beam for wave beam corresponding with the first ascending resource set, comprising:

The first network equipment determines the of wave beam corresponding with the first ascending resource set according to the first mapping relations One mark；

The wave beam that the first network equipment indicates the first identifier is determined as first wave beam.

4. the method according to claim 1, wherein when the terminal device there is no pre-assigned uplink When resource, the method also includes:

The first network equipment sends Downlink Control Information DCI to the terminal device, and the DCI includes the first mapping relations With at least one of first identifier information, wherein first mapping relations are used to indicate the first ascending resource set Corresponding relationship between first wave beam, the first identifier are the mark of first wave beam.

5. method according to claim 1 to 4, which is characterized in that first wave beam be uplink beam and At least one of downlink wave beam wave beam.

6. a kind of communication means characterized by comprising

Terminal device determines the first wave beam according to the first ascending resource set, first wave beam be first network equipment according to Any one wave beam in multiple wave beams that the measurement result that the terminal device reports determines, the first ascending resource set packet At least one ascending resource is included, the first network equipment is to provide the network equipment of Target cell for the terminal device；

The terminal device is communicated by first wave beam and the first network equipment.

7. according to the method described in claim 6, it is characterized in that, the terminal device according to the first ascending resource set, really Fixed first wave beam, comprising:

The terminal device obtains the first mapping relations, and first mapping relations are used to indicate multiple ascending resource set and more Corresponding relationship between a wave beam；

Wave beam corresponding with the first ascending resource set is determined as by the terminal device according to first mapping relations First wave beam.

8. the method according to the description of claim 7 is characterized in that first mapping relations are used to indicate multiple ascending resources Corresponding relationship between the index of set and the mark of multiple wave beams, the terminal device is according to the first ascending resource set, really Fixed first wave beam, comprising:

The terminal device determines the first mark of wave beam corresponding with the first ascending resource set according to the first mapping relations Know；

The wave beam that the terminal device indicates the first identifier is determined as first wave beam.

9. according to the method described in claim 6, it is characterized in that, when the terminal device there is no pre-assigned uplink When resource, the method also includes:

It includes the first mapping that the terminal device, which receives the Downlink Control Information DCI, the DCI that the first network equipment is sent, At least one of relationship and first identifier information, wherein first mapping relations are used to indicate first ascending resource Corresponding relationship between set and first wave beam, the first identifier are the mark of first wave beam.

10. method according to any one of claims 6 to 9, which is characterized in that first wave beam be uplink beam and At least one of downlink wave beam wave beam.

11. a kind of communication device characterized by comprising

Determination unit, the first ascending resource set used for determining terminal device, the first ascending resource set include At least one ascending resource, the first network equipment is that the network equipment of Target cell is provided for the terminal device, described First network equipment is to provide the network equipment of Target cell for the terminal device；

The determination unit is also used to determine that the first wave beam, first wave beam are institutes according to the first ascending resource set State any one wave beam in multiple wave beams that the measurement result that first network equipment is reported according to the terminal device determines；

Communication unit, for passing through first wave beam and the terminal equipment in communication.

12. device according to claim 11, which is characterized in that the determination unit is also used to:

The first mapping relations are obtained, first mapping relations are used to indicate between multiple ascending resource set and multiple wave beams Corresponding relationship；

The determination unit is also used to:

According to first mapping relations, wave beam corresponding with the first ascending resource set is determined as the first wave Beam.

13. device according to claim 12, which is characterized in that first mapping relations are used to indicate multiple uplink moneys Corresponding relationship between the index of source set and the mark of multiple wave beams, the determination unit are also used to:

According to the first mapping relations, the first identifier of wave beam corresponding with the first ascending resource set is determined；

The wave beam that the first identifier is indicated is determined as first wave beam.

14. device according to claim 11, which is characterized in that when the terminal device there is no on pre-assigned When row resource, the communication unit is used for:

To the terminal device send Downlink Control Information DCI, the DCI include in the first mapping relations and first identifier extremely A kind of few information, wherein first mapping relations be used to indicate the first ascending resource set and first wave beam it Between corresponding relationship, the first identifier be first wave beam mark.

15. device described in any one of 1 to 14 according to claim 1, which is characterized in that first wave beam is uplink beam With at least one of downlink wave beam wave beam.

16. a kind of communication device characterized by comprising

Determination unit, for determining that the first wave beam, first wave beam are first network equipment according to the first ascending resource set Any one wave beam in the multiple wave beams determined according to the measurement result that the terminal device reports, the first ascending resource collection Closing includes at least one ascending resource；

Communication unit, for being communicated by first wave beam and the first network equipment.

17. device according to claim 16, which is characterized in that described device further include:

Acquiring unit, for obtain the first mapping relations, first mapping relations be used to indicate multiple ascending resource set and Corresponding relationship between multiple wave beams；

The determination unit is also used to according to first mapping relations, will wave beam corresponding with the first ascending resource set It is determined as first wave beam.

18. device according to claim 17, which is characterized in that first mapping relations are used to indicate multiple uplink moneys Corresponding relationship between the index of source set and the mark of multiple wave beams, the determination unit are also used to:

19. device according to claim 16, which is characterized in that when the communication device there is no on pre-assigned When row resource, the communication unit is also used to:

Receiving Downlink Control Information DCI, the DCI that the first network equipment is sent includes the first mapping relations and the first mark At least one of know information, wherein first mapping relations are used to indicate the first ascending resource set and described the Corresponding relationship between one wave beam, the first identifier are the mark of first wave beam；

The determination unit is also used to:

First wave beam is determined according to the first ascending resource set and the DCI.

20. device described in any one of 6 to 19 according to claim 1, which is characterized in that first wave beam is uplink beam With at least one of downlink wave beam wave beam.

21. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey Sequence realizes the method as described in any one of claims 1 to 10 when the computer program is performed.

22. a kind of chip system, which is characterized in that the chip system includes:

Memory, for storing instruction；

Processor, for described instruction to be called and run from the memory, so that being equipped with the communication of the chip system Equipment executes the method as described in any one of claims 1 to 10.