CN105744560B

CN105744560B - The method and device that a kind of determining serving BS, measurement report

Info

Publication number: CN105744560B
Application number: CN201410773461.2A
Authority: CN
Inventors: 贺媛; 秦飞; 刘佳敏
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-12-12
Filing date: 2014-12-12
Publication date: 2019-06-14
Anticipated expiration: 2034-12-12
Also published as: CN105744560A

Abstract

The invention discloses the method and devices that a kind of determining serving BS, measurement report, to realize the identifying processing of base station in super-intensive network.The method for determining serving BS includes: to obtain the first measurement result of reported by user equipment UE, which reported after the UE measures base station in the collaboration region under concentrated area according to the first measurement configuration information；According to first measurement result, one or more serving BSs of the UE in the collaboration region are determined.

Description

Method and device for determining serving base station and measuring and reporting

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a serving base station and measuring and reporting.

Background

In the prior art, a coordinated multipoint communication system (CoMP) scenario 4 includes a heterogeneous network composed of macro cells and low-power RRHs (remote radio heads). The method comprises the steps that low-power RRHs are distributed in the coverage area of a macro Cell, each RRH forms a Cell which is the same as the macro Cell and has the same Cell identification (Cell ID), the macro Cell and the RRHs jointly transmit the same common pilot frequency such as CRS (Cell-specific pilot signals), and the RRHs do not belong to Cell switching.

The Channel State Information-Reference Signal (CSI-RS) may be used for RRM (Radio Resource Management) measurement and Channel State Information (CSI) measurement of a macro cell and an RRH in CoMP scenario 4. The high layer configures CSI-RS resources, namely the resources of the non-zero power CSI-RS, for RRH in the measurement set, wherein the resources comprise resource configuration ID, antenna port number, subframe configuration, pseudo-random sequence generation parameters and the like, and the resources are used for UE to measure and report channel state information, and the maximum number of transmission points of the measurement set supported by the current standard is 3. Meanwhile, the high layer also configures CSI interference measurement (CSI-IM) resources for RRHs in the measurement set, wherein the CSI interference measurement (CSI-IM) resources comprise resource configuration IDs, subframe configuration and the like, and the RRHs in cooperation are silenced on the CSI-IM resources, so that channel feedback during multipoint cooperation is supported.

Currently, optical fibers are directly connected between macro stations and RRHs within a co-site range, so that an ideal backhaul link (backhaul) can be realized, and layer one (L1) interference control level cooperation can be performed. However, L1 cooperation cannot be performed between macro stations and RRHs in different macro station ranges, and the number of base stations in the cooperation range and the cooperation set is small.

The resource allocation of the CSI-RS at 8 antenna ports is 5-8, the subframe allocation is 5-80, the pseudo-random sequence is 504, and the identification and measurement of 12600-322560 RRHs can be supported. However, the CSI-RS REs (Resource elements) have the same Resource configuration, and in the same subframe, the RRHs are distinguished only by the pseudo-random sequence, which is difficult to meet the requirement of measurement accuracy. Therefore, the time frequency resources are required to be staggered, the measurement accuracy is improved, and the identification and measurement of 25-640 RRHs can be supported. The more kinds of subframe configurations mean that the transmission period of the CSI-RS is longer, for example, 80 corresponding transmission periods are 80ms, and the longer transmission period is suitable for RRM measurement but not suitable for CSI measurement. When the transmission period is 5ms, the number of supportable RRHs is at least 25. Thus, the current CSI measurement mechanisms may not be able to support measurements for more base stations.

In an ultra-dense networking scenario, such as a large office building with high traffic, a dense meeting with massive connections, etc., an extremely large number of base stations need to be deployed within a certain range to provide services, so as to meet the requirements of higher traffic density and user experience rate. The performance index for the office scenario is as follows:

the flux density is 15T/2T bps/Km 2;

the user experience rate is 1G/0.5G bps;

the number density of the connections was 0.75/m 2.

However, under the existing network architecture, the adopted base station identification and measurement mechanism may not be able to meet the identification and measurement requirements when a plurality of base stations are densely deployed in an ultra-dense networking scenario. For example, an office building has multiple floors (e.g., 20 floors), each floor has multiple office areas (e.g., 2), each office area is densely deployed with 10 APs (Access points), and the total number of APs is 400. In such an ultra-dense network, the number of base stations is large, and if the base stations in the ultra-dense network cannot be identified according to the current CSI-RS resource configuration mode.

Disclosure of Invention

The embodiment of the invention provides a method and a device for determining a service base station and measuring and reporting, which are used for realizing identification processing of base stations in a super-dense network.

The method for determining the service base station provided by the embodiment of the invention comprises the following steps:

acquiring a first measurement result reported by User Equipment (UE), wherein the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

determining one or more serving base stations of the UE in the cooperation area according to the first measurement result.

The method realizes the identification processing of the base stations in the ultra-dense network, achieves the aim of improving the system performance, is more suitable for dense deployment scenes and has higher efficiency and practicability.

Preferably, the method further comprises:

acquiring a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures a cooperation area under a centralized area according to second measurement configuration information;

and determining the cooperation area where the UE is located according to the second measurement result.

Preferably, after determining the serving base station of the UE in the cooperation area, the method further includes:

and instructing the base station in the cooperation area to send third measurement configuration information for measuring the channel to the UE.

Preferably, after instructing the base station in the cooperation area to send the third measurement configuration information for measuring the channel to the UE, the method further includes:

and acquiring a third measurement result of the measurement channel reported by the UE, and scheduling resources for data transmission of the UE according to the third measurement result.

Preferably, the first measurement configuration information indicates first reference signal resources corresponding to base stations in a cooperation area.

Preferably, the first measurement configuration information indicates a first reference signal resource corresponding to a base station in a cooperation area; the second configuration information indicates a second reference signal resource corresponding to the cooperation area.

Preferably, the second measurement configuration information further indicates a measurement reporting condition of the second measurement result, where the measurement reporting condition includes: reporting the measurement result of the cooperation area corresponding to the maximum measurement value in the reference signal resources corresponding to each cooperation area as a second measurement result; or when the measured value on the reference signal resource of the adjacent cooperation area of the cooperation area to which the UE belongs is larger than the measured value on the reference signal resource of the cooperation area to which the UE belongs and the difference value reaches a first threshold value, reporting the measurement result of the adjacent cooperation area as a second measurement result.

Preferably, the first measurement configuration information indicates a first reference signal resource corresponding to a base station in a cooperation area; the third measurement configuration information indicates a third reference signal resource corresponding to the channel.

Preferably, the first reference signal resource is the same as the third reference signal resource.

Preferably, the first measurement configuration information further indicates a measurement reporting condition of the first measurement result, where the measurement reporting condition of the first measurement result includes:

taking N measured values on the first reference signal resource as a first measurement result to report; or,

reporting a measurement value of which the measurement value on the first reference signal resource is greater than or equal to a preset second threshold value as a first measurement result; or,

and reporting the measured value of which the difference value between the measured value on the first reference signal resource and the maximum measured value is smaller than a preset third threshold value as a first measured result.

Preferably, any of the reference signal resources is a time frequency resource unused by an existing reference signal, a broadcast channel and/or a control channel.

Preferably, the number of antenna ports corresponding to any one of the reference signal resources is greater than 8.

Preferably, determining a serving base station of the UE in the cooperation area according to the first measurement result includes:

taking a base station corresponding to a difference value between the measurement value in the first measurement result and the maximum measurement value, which is smaller than a preset difference threshold measurement value, as a serving base station of the UE in the cooperation area; or,

selecting a predetermined number of base stations as serving base stations of the UE in the cooperation area according to the first measurement result; or,

and selecting a base station meeting the service quality requirement of the UE as a service base station of the UE in the cooperation area according to the first measurement result.

The measurement reporting method provided by the embodiment of the invention comprises the following steps:

the user equipment UE measures a base station in a cooperation area under the concentrated area according to the first measurement configuration information to obtain a first measurement result;

and the UE reports the first measurement result.

Preferably, before obtaining the first measurement result, the method further comprises:

the UE measures the cooperation area under the centralized area according to the second measurement configuration information to obtain a second measurement result;

and the UE reports the second measurement result.

Preferably, after the UE reports the second measurement result, the method further includes:

the UE measures a channel according to third measurement configuration information to obtain a third measurement result;

and the UE reports the third measurement result.

the measured values on the first reference signal resource are arranged in a descending order, and the first N measured values are taken as first measurement results to be reported; or,

receiving a first measurement result reported by User Equipment (UE), wherein the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

and sending the first measurement result to a centralized node.

Preferably, before receiving the first measurement result reported by the UE, the method further includes:

receiving a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures the cooperation area under the centralized area according to second measurement configuration information;

and sending the second measurement result to a centralized node.

Preferably, after sending the first measurement result to the centralized node, the method further includes:

transmitting third measurement configuration information for measuring a channel to the UE;

receiving a third measurement result of the measurement channel reported by the UE;

and sending the third measurement result to a centralized node, or performing resource scheduling of data transmission on the UE according to the third measurement result.

Preferably, the method further comprises the step of sending measurement configuration information to the UE:

receiving a reference signal resource sent by a centralized node, generating measurement configuration information by using the reference signal resource and a measurement reporting condition, and sending the measurement configuration information to the UE; or,

and receiving measurement configuration information sent by the centralized node, and sending the measurement configuration information to the UE.

Preferably, any one of the measurement configuration information is sent to the UE through a higher layer signaling or a broadcast signaling.

The device for determining the service base station provided by the embodiment of the invention comprises the following components:

a first unit, configured to obtain a first measurement result reported by a user equipment UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

a second unit, configured to determine one or more serving base stations of the UE in the cooperation area according to the first measurement result.

Preferably, the first unit is further configured to:

Preferably, after determining the serving base station of the UE in the cooperation area, the second unit is further configured to:

Preferably, after the second unit instructs the base station in the cooperation area to send the third measurement configuration information for measuring the channel to the UE, the second unit is further configured to:

Preferably, the second unit is specifically configured to:

The measurement reporting device provided by the embodiment of the invention comprises:

a third unit, configured to measure a base station in a cooperation area in the centralized area according to the first measurement configuration information, to obtain a first measurement result;

a fourth unit, configured to report the first measurement result.

Preferably, the third unit is further configured to, before obtaining the first measurement result:

measuring the cooperation area under the concentrated area according to the second measurement configuration information to obtain a second measurement result;

and reporting the second measurement result.

Preferably, after reporting the second measurement result, the third unit is further configured to:

measuring a channel according to the third measurement configuration information to obtain a third measurement result;

and reporting the third measurement result.

a fifth unit, configured to receive a first measurement result reported by a UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

a sixth unit, configured to send the first measurement result to a centralized node.

Preferably, before receiving the first measurement result reported by the UE, the fifth unit is further configured to:

and sending the second measurement result to a centralized node.

Preferably, the sixth unit is further configured to, after sending the first measurement result to the centralized node:

Preferably, the sixth unit is further configured to:

and sending any measurement configuration information to the UE through high-layer signaling or broadcast signaling.

On the centralized node side, another apparatus for determining a serving base station according to an embodiment of the present invention includes:

a processor for reading the program in the memory, performing the following processes:

the method comprises the steps that a transceiver is controlled to obtain a first measurement result reported by User Equipment (UE), and the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

Preferably, before controlling the transceiver to obtain the first measurement result reported by the UE, the processor is further configured to:

controlling a transceiver to obtain a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures a cooperation area in a centralized area according to second measurement configuration information;

Preferably, after determining the serving base station of the UE in the cooperation area, the processor is further configured to:

Preferably, after instructing the base station in the cooperation area to send the third measurement configuration information for measuring the channel to the UE, the processor is further configured to:

Preferably, when determining the serving base station of the UE in the cooperation area according to the first measurement result, the processor is specifically configured to:

On the UE side, another measurement reporting apparatus provided in the embodiment of the present invention includes:

measuring a base station in a cooperation area under the concentrated area according to the first measurement configuration information to obtain a first measurement result;

and controlling the transceiver to report the first measurement result.

Preferably, the processor is further configured to, before obtaining the first measurement result:

and controlling the transceiver to report the second measurement result.

Preferably, after the processor controls the transceiver to report the second measurement result, the processor is further configured to:

and controlling the transceiver to report the third measurement result.

On the base station side, another apparatus for determining a serving base station according to an embodiment of the present invention includes:

the method comprises the steps that a control transceiver receives a first measurement result reported by User Equipment (UE), and the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

controlling the transceiver to send the first measurement result to a centralized node.

Preferably, before controlling the transceiver to receive the first measurement result reported by the user equipment UE, the processor is further configured to:

controlling a transceiver to receive a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures a cooperation area in a centralized area according to second measurement configuration information;

controlling the transceiver to send the second measurement result to the centralized node.

Preferably, the processor, after controlling the transceiver to send the first measurement result to the centralized node, is further configured to:

controlling a transceiver to transmit third measurement configuration information for measuring a channel to the UE;

controlling the transceiver to receive a third measurement result of the measurement channel reported by the UE;

and controlling the transceiver to send the third measurement result to a centralized node, or performing resource scheduling of data transmission on the UE according to the third measurement result.

Preferably, the processor is further configured to:

and the control transceiver sends any measurement configuration information to the UE through high-level signaling or broadcast signaling.

Preferably, when the processor controls the transceiver to send any one of the measurement configuration information to the UE through a high layer signaling or a broadcast signaling, the processor is specifically configured to:

the control transceiver receives a reference signal resource sent by the centralized node, generates measurement configuration information by using the reference signal resource and a measurement reporting condition and sends the measurement configuration information to the UE through a high-level signaling or a broadcast signaling; or,

and the control transceiver receives the measurement configuration information sent by the centralized node and sends the measurement configuration information to the UE through a high-level signaling or a broadcast signaling.

Drawings

Fig. 1 is a schematic flowchart of a method for determining a serving base station at a centralized node according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a measurement reporting method on a UE side according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for determining a serving base station at a base station according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an office scenario under a C-RAN architecture according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a dense meeting scenario provided by an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an apparatus for determining a serving base station on a centralized node side according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a measurement reporting apparatus at a terminal side according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an apparatus for determining a serving base station at a base station according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another apparatus for determining a serving base station at a centralized node according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another measurement reporting apparatus at a terminal side according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another apparatus for determining a serving base station at a base station side according to an embodiment of the present invention.

Detailed Description

In the future development of mobile communication systems, in order to better meet user requirements and greatly improve network capacity and throughput, more access nodes with low power and small coverage are inevitably introduced, i.e. the mobile communication systems are ultra-dense networks in the future. The embodiment of the invention provides that in a super-dense network, a plurality of base stations are controlled by one centralized node. Each base station under the control of the same centralized node forms a centralized area. And dividing a cooperation area under the centralized area, wherein the cooperation area may be overlapped or not overlapped, and the cooperation area may include one base station or multiple base stations, wherein one or multiple serving base stations serving the UE may be provided, and the multiple serving base stations form a cooperation set of the UE.

In the embodiment of the invention, in an ultra-dense network, a centralized node determines a base station for User Equipment (UE) on the premise of identifying and measuring each base station controlled under the centralized node. In LTE-a (Long Term Evolution-Advanced), base stations are identified and measured by CSI-RS. Then, in the ultra-dense network, each base station under the control of the centralized node can also be identified and measured through the CSI-RS.

The CSI-RS resource at least comprises a resource configuration ID, an antenna port number, subframe configuration, pseudo-random sequence generation parameters and the like of the CSI-RS resource. At present, the CSI-RS of 8 antenna ports can be supported at most, 5-8 kinds of resources of the CSI-RS at the 8 antenna ports are allocated, 5-80 kinds of subframes are allocated, and 504 pseudo-random sequences exist. In the embodiment of the present invention, a new reference signal resource may be used to identify the base station, the new reference signal resource may be an unused time-frequency resource of an existing reference signal, a broadcast channel and/or a control channel, and the number of antenna ports corresponding to the new reference signal resource is greater than 8. Therefore, the identification precision can be ensured, and the new reference signal resources configured for each base station are ensured to be staggered on the time frequency resources.

A detailed description of embodiments of the present invention is given below with reference to the accompanying drawings.

Referring to fig. 1, at a centralized node side, a method for determining a serving base station according to an embodiment of the present invention includes:

s101, obtaining a first measurement result reported by User Equipment (UE), wherein the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

s102, determining one or more service base stations of the UE in the cooperation area according to the first measurement result.

In the embodiment of the invention, one centralized node can control a plurality of base stations, and the centralized node can be a high-level node. For example, an independent access network node: a Local Gateway (Local Gateway) or a Local Controller (Local Controller), or a core network node, or an Operation, Administration and Maintenance (OAM) node; the base station can also be a super base station, and the base station can manage a plurality of base stations and can be regarded as the super base station; or a baseband pool in the C-RAN architecture, and collectively processes baseband signals of multiple Remote Radio Heads (RRHs).

The base station may be a macro station, e.g., eNB, NB, etc.; or a small station, such as a Low Power Node (LPN) pico, a femto, etc., an Access Point (AP); or RRH in C-RAN architecture. One or more cells are located under one base station, and in a dense deployment scenario, the cell under one base station is generally referred to as a small cell.

If the base station works on a central frequency point, the base station is divided into a cell, and the working frequency point of the cell is the working frequency point (central frequency point) of the base station. If the base station works on two or more central frequency points, the base station is divided into two or more cells, the number of the cells is the number of the working frequency points of the base station, and the working frequency point of each cell is one working frequency point of the base station.

In the embodiment of the present invention, there may be two schemes for determining the serving base station:

the first method comprises the following steps: the centralized node may determine one or more serving base stations of the UE in the cooperation area directly according to the first measurement result;

and the second method comprises the following steps: the centralized node firstly acquires a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures the cooperation area under the centralized area according to second measurement configuration information; and determining the cooperation area where the UE is located according to the second measurement result. Then, steps S101 and S102 are performed again.

However, in any case, preferably, after determining the serving base station of the UE in the cooperation area, the method further includes:

Preferably, the first measurement configuration information indicates a first reference signal resource corresponding to a base station in a cooperation area; the second configuration information indicates a second reference signal resource corresponding to the cooperation area; different base stations in the same cooperation area correspond to different first reference signal resources, and different cooperation areas correspond to different second reference signal resources.

The third measurement configuration information indicates a third reference signal resource corresponding to the channel.

taking N measurement values on the first reference signal resource as a first measurement result to report, wherein for example, M measurement values exist on the first reference signal resource, and taking N measurement values as the first measurement result to report, wherein M is greater than or equal to N; or,

Correspondingly, referring to fig. 2, at the UE side, a measurement reporting method provided in the embodiment of the present invention includes:

s201, measuring a base station in a cooperation area under a centralized area by User Equipment (UE) according to first measurement configuration information to obtain a first measurement result;

s202, the UE reports the first measurement result.

and the UE reports the second measurement result.

and the UE reports the third measurement result.

Correspondingly, referring to fig. 3, on the base station side, a method for determining a serving base station according to an embodiment of the present invention includes:

s301, receiving a first measurement result reported by User Equipment (UE), wherein the first measurement result is reported after the UE measures a base station in a cooperation area under a centralized area according to first measurement configuration information;

s302, the first measurement result is sent to a centralized node.

and sending the second measurement result to a centralized node.

Wherein, the high-level signaling is UE-dedicated signaling, and any one of the measurement configuration information is sent to the UE in an RRC message; and when the broadcast signaling is adopted, any one of the measurement configuration information is sent to the UE in a broadcast message.

In the embodiment of the invention, under an ultra-dense networking scene, such as a large office building with high traffic, a centralized node is needed to control a plurality of base stations. A C-RAN architecture (baseband pool centralized processing + RRH radio remote) may be employed, with the AP corresponding to the RRH. All AP optical fibers in an office building are directly connected to a baseband pool to form a C-RAN, and different C-RANs exist among the office buildings, as shown in FIG. 4. Since an office building has multiple floors, for example, 20 floors, and each floor has multiple office areas, for example, 2, and 10 APs are densely deployed in each office area, the total number of APs under the same C-RAN is 400.

Under the scene of ultra-dense networking, the working frequency of a base station is below 6GHz, the typical working frequency Band is 3.4 GHz-3.6 GHz (LTE TDD Band 42), the penetration loss of an outer wall between office buildings is 23dB, the penetration loss of an inner wall between office areas is 5dB, and larger penetration loss exists between floors. Therefore, the channel conditions and signal strengths of APs in different office buildings, different floors, and different office areas are greatly different, and are not suitable for cooperation at the L1 interference control level. The office area of a certain floor of an office building can be regarded as a cooperation area, and 10 APs in the cooperation area form a cooperation set.

Typically, 10 APs are deployed in an office area of 1000m2, with an inter-AP station spacing of 10 m. By adopting a more dense deployment mode, 40 APs are deployed in an office area of 1000m2, the station spacing of the APs is 5m, and the station spacing is very small and the deployment is very dense.

The first embodiment is as follows: the identification of the base station in the office scene adopts the existing Reference Signal (RS) design.

A plurality of APs in an office building are controlled by a base station pool of a centralized node C-RAN to form a centralized cell, the APs are divided into a plurality of cooperation areas according to the office area, the APs in the cooperation areas form a cooperation set, and the cooperation set is determined for each UE in the cooperation areas.

Under the same C-RAN, since the AP corresponds to the RRH, similar to CoMP scenario 4, all APs under the same C-RAN have the same common pilot (e.g., CRS), belong to the same Cell, and have the same Cell ID. When there are multiple carriers, CRSs are transmitted on different frequency points, corresponding to multiple cells, and the number of the multiple cells under each AP can be the same or different.

Since the CRS is the same under the same C-RAN, the CRS cannot be used to distinguish the cooperation region, and the cooperation region includes the cooperation set. Therefore, it may be considered which cooperation region is distinguished with a specific CSI-RS resource. For example, an office building has 20 floors, 2 office areas per floor, and 40 cooperative areas (office areas). The cooperation region may be identified by adopting a configuration with a long CSI-RS transmission period, for example, the CSI-RS transmission period is 80ms, and then the CSI-RS configurations are at least 400, and 40 CSI-RS resources (i.e., new reference signal resources) may be selected as specific CSI-RS resources for identifying the cooperation region.

In the same cooperation area, 10 APs are deployed, and the maximum deployable quantity is 40 APs. Therefore, when determining a cooperation set for each UE in a cooperation area, a configuration with a long CSI-RS transmission period is adopted, for example, the CSI-RS transmission period is 40ms, then the CSI-RS configurations are at least 200, and 10 or 40 configurations can be selected for determining the cooperation set. When the APs (e.g., 6 of 10 APs and 15 of 40 APs) in the UE cooperation set perform L1 cooperation, a configuration with a short CSI-RS transmission period is adopted, for example, the CSI-RS transmission period is 5ms, and then the CSI-RS configurations are at least 25, and 6 or 15 CSI-RS configurations can be selected to identify the APs in the cooperation set. The identification of APs within different cooperation areas may reuse the CSI-RS resource configuration and subframe configuration, but are distinguished using different pseudo-random sequences.

Example two: and (4) identifying the base station in an office scene, and adopting a new reference signal resource design.

In the first embodiment, the existing reference signals CRS and CSI-RS are adopted, and are designed based on the reference signals in the existing LTE system. In a super-dense networking scenario, a new reference signal design may be adopted in a 5G system, for example, a broadcast channel and a control channel are simplified, and more time-frequency resources are left for identification of a plurality of base stations, so that resource configuration of a new reference signal at an 8-antenna port may be more, and resource configuration may even be performed based on more antenna ports (e.g., 16, 32, 64, etc.).

In addition, high frequency bands such as 42-48GHz and 59-64GHz operating frequencies can be adopted in the 5G system, and the frame structure, physical channels and reference signals of the physical layer can be completely designed. Under the new reference signal design, a centralized cell (an AP under the same C-RAN) can still be identified by using a common pilot, a cooperation area is identified by using a specific reference signal resource, a reference signal resource is selected in the cooperation area to determine a cooperation set, and the reference signal resource is selected to identify the AP in the cooperation set.

Example three: the dense set may be identified by the base station.

The Tiananmen square has a length of 880 meters in south and north, an east-west width of 500 meters and an area of 44 ten thousand square meters, and can accommodate 100 thousand people to hold a great gathering at most. In a dense gathering scene with massive connection, base stations are densely deployed at the boundary of a square as shown in fig. 5, a plurality of base stations are randomly deployed in the square, and the distance between the base stations is 20-100 m.

The base stations on the four sides of the square can be combined into 4C-RANs according to the geographical position, and the base stations in the square can be combined into 1C-RAN. Different from an office scene, in a dense gathering scene, no penetrating loss of inner and outer walls and floors exists, and a cooperation area cannot be formed naturally, so that base stations in a certain area can be artificially divided into the cooperation area to form a cooperation set of the cooperation area. At this time, different specific CSI-RS resources may be used for identifying the cooperation areas in the adjacent C-RAN, the CSI-RS resource configuration and the subframe configuration cannot be reused for identifying the cooperation set in the adjacent cooperation areas and the base stations in the cooperation set, and only the identification of the base stations in the cooperation set and the cooperation set in the cooperation set that satisfy a certain isolation (a specific value may be determined according to an actual situation) may be reused, where the isolation refers to that a difference in path loss between the base stations on the boundary of the cooperation areas exceeds a preset threshold (a specific value may be determined according to an actual situation) or that the measured received signal power is lower than a preset threshold (a specific value may be determined according to an actual situation).

Specific embodiments of the measurement mechanism are given below.

Taking the existing reference signal as an example in the office scene in the first embodiment, the method for measuring the base station in the ultra-dense networking scene is described.

Example four: and measuring the common pilot frequency.

Under the same C-RAN, CRSs (Cell specific identifiers) sent by all APs on the same frequency point are the same, and the UE can determine which centralized Cell is accessed by measuring the CRSs to acquire the Cell ID and the broadcast message. When there are multiple carriers, the APs transmit CRS at different frequency points, corresponding to multiple cells, and the number of cells under each AP may be the same or different. For example, AP1 transmits CRS at frequency point f1 and frequency point f2, corresponding to Cell1 and Cell2, AP2 transmits CRS at frequency point f2 and frequency point f3, corresponding to Cell2 and Cell3, and AP3 transmits CRS at frequency point f1 and frequency point f2 and frequency point f3, corresponding to Cell1, Cell2 and Cell 3.

Example five: a measure of the cooperation area is determined.

Since the CRS is the same under the same C-RAN, the CRS cannot be used to distinguish a cooperation area (e.g., an office area). Therefore, it may be considered which cooperation region is distinguished with a specific CSI-RS resource. When the UE accesses to a C-RAN through the CRS, the network side configures a specific CSI-RS resource and a measurement reporting condition (for example, the maximum CSI-RS RSRP report) for the UE, and the network side determines in which cooperation region the UE is located according to the cooperation region ID corresponding to the reported CSI-RS resource, as shown in table one below. All APs within the cooperation area transmit CSI-RS on specific CSI-RS resources.

Table one: CSI-RS resource corresponding table of cooperation area and measurement configuration

The network side for measuring the period of the UE configures specific CSI-RS resources, and when the condition is satisfied, for example, if: and reporting the CSI-RS RSRP of the adjacent cooperation area and the CSI-RS RSRP of the local cooperation area to the network side, and changing the UE into a new cooperation area by the network side.

The measurement period of the cooperation region is determined to be an integral multiple of the CSI-RS transmission period, and may be hundred milliseconds, seconds and the like. The network side can configure a measurement period for determining the cooperation area according to the moving state of the UE, and can configure a longer period if the UE is stationary or slowly moving, and can configure a shorter period if the UE is moving faster, thereby better supporting the change of the cooperation area.

In addition, for a specific CSI-RS resource, the network side may notify the UE through a higher layer dedicated signaling (e.g., RRC message), or may periodically send the specific CSI-RS resource (i.e., the measurement configuration information) on a broadcast channel through a broadcast message (e.g., SIB message), and the UE obtains the specific CSI-RS resource carried in the specific CSI-RS resource after parsing.

Example six: a measure of the cooperation set is determined.

After determining which cooperation area the UE is in, the network side then configures the CSI-RS resources and measurement reporting conditions of each AP in the cooperation area to the UE, and further determines a cooperation set, as shown in table two below.

Table two: CSI-RS resource corresponding table for AP and measurement configuration in cooperation area

Measuring and reporting conditions:

first, when the measurement quantity meets the threshold, that is, a measurement value of which the measurement value on the first reference signal resource is greater than or equal to a preset second threshold value (a specific value may be preset according to actual needs) is reported as a first measurement result.

Measurement configuration information sent by a network side to UE comprises CSI-RS resources, measurement IDs, measurement quantities, measurement events, a second threshold value and the like;

the UE measures the measurement quantity (for example, RSRP of CSI-RS) of the APi (any AP) to meet a threshold requirement, for example, RSRPI > xdBm, wherein the RSRPI represents the measurement value of the measurement quantity of the APi, and x represents a second threshold value;

the UE reports the measurement result corresponding to the AP meeting the threshold requirement, wherein the measurement result comprises a measurement ID, a measurement value of the measurement quantity and the like;

and secondly, the measured quantity meets a difference threshold, namely the measured value of which the difference between the measured value on the first reference signal resource and the maximum measured value is smaller than a preset third threshold value is used as a first measured result to be reported.

The network side issues measurement configuration information to the UE, wherein the measurement configuration information comprises CSI-RS resources, measurement IDs, measurement quantities, measurement events, a third threshold value and the like;

the difference between the measurement quantity of UE measurement APi (such as RSRP of CSI-RS) and the strongest APmax meets the threshold requirement, for example, RSRPmax-RSRPI < x dB; wherein RSRPmax represents the maximum measurement value, RSRPi represents the measurement value of the measurement quantity of APi, and x represents the third threshold value;

and the UE reports the measurement result corresponding to the AP meeting the requirement of the difference threshold, wherein the measurement result comprises a measurement ID, a measurement value of the measurement quantity and the like.

Thirdly, the number of the reported APs is measured to meet a preset value, namely, the measured values on the first reference signal resource are arranged in a descending order, and the first N measured values are taken as first measurement results to be reported;

the network side issues measurement configuration information to the UE, wherein the measurement configuration information comprises CSI-RS resources, measurement IDs, measurement quantity, preset values of reported AP numbers and the like;

the UE arranges the APs in descending order according to the measured values of the measured quantity (such as RSRP of CSI-RS), and sequentially selects the measuring results corresponding to the N APs from the first one;

and the UE reports the measurement results corresponding to the N APs, wherein the measurement results comprise measurement IDs, measurement values of measurement quantities and the like.

The method for determining the collaboration set in this embodiment is, for example:

firstly, a difference threshold based on the measurement quantity is used, that is, a base station corresponding to a difference value between the measurement value in the first measurement result and the maximum measurement value being smaller than a preset difference threshold measurement value is used as a serving base station of the UE in the cooperation area.

Determining that the difference value between the measurement value of the AP measurement quantity in the cooperation set and the maximum measurement value corresponding to the strongest APmax measurement quantity is smaller than a preset difference value threshold measurement value;

the UE takes the AP corresponding to the difference value between the measured value and the maximum measured value, which is smaller than the preset difference threshold measured value, as a service base station of the UE in a cooperation area, and if the AP is a plurality of APs, the plurality of APs form a cooperation set of the UE;

the number of APs in the cooperation set selected based on the difference threshold may be different for different UEs, for example, the AP in the cooperation set of UE1 is AP1, AP2, and the AP in the cooperation set of UE2 is AP1, AP2, AP 3.

And secondly, selecting a preset number of base stations as the service base stations of the UE in the cooperation area based on the number of the cooperation cells, namely according to the first measurement result.

Defining the number of APs in the cooperation set to be certain and equal to a preset value (namely, a preset number);

UE reports the measurement results corresponding to a predetermined number of APs, and a network side selects the APs to form a cooperation set of the UE;

the number of APs in the cooperation set selected based on the predetermined number is the same for different UEs, but the APs may be different, e.g., AP in the UE1 cooperation set is AP1, AP2, and AP in the UE2 cooperation set is AP2, AP 3.

And thirdly, based on the QoS (Quality of Service) of the UE Service, selecting a base station meeting the Service Quality requirement of the UE as a Service base station of the UE in the cooperation area according to the first measurement result.

Determining an AP in a cooperation set according to a QoS of the UE service, for example, GBR (Guaranteed Bit Rate) or MinBR (Minimum Bit Rate);

and the UE reports the measurement result corresponding to the AP, wherein the measurement result comprises a measurement ID, a measurement value of measurement quantity and the like, and the network side selects the AP in the cooperation set for the UE according to the QoS of UE service, the measurement values of the spectrum efficiency, the system bandwidth, the load and the measurement quantity (such as RSRP) of the AP in the cooperation area and the like.

For a UE, the QoS of its service requires a transmission rate of R bps, the spectrum efficiency of APi in its cooperation area is Xi bps/Hz, the system bandwidth is Wi Hz, the load is Yi%, and the measured value of the measurement quantity (e.g., RSRP) is Zi dbm. The UE may arrange the APs in an ascending order of load or in a descending order of RSRP, sequentially select the APs, compare the required transmission rate R with the transmission rate Xi Wi (1-Yi%) that can be provided by the AP, and make the selected APs into the cooperation set of the UE until the transmission rate requirement is satisfied.

In this embodiment, the UE may periodically measure the CSI-RS resources configured by the network side, the UE side reports the measurement result according to the measurement report condition, and the network side determines whether to update the cooperation set of the UE according to the reported measurement result and by combining the criterion of determining the cooperation set. And when the measurement reporting condition for re-determining the cooperation set for the UE is met, the network side updates the cooperation set of the UE. And determining that the measurement period of the cooperation set is an integral multiple of the CSI-RS transmission period, and the measurement period can be millisecond, hundred millisecond, second and the like. The network side can configure a measurement period for determining the cooperation set according to the moving state of the UE, and can configure a longer period if the UE is stationary or slowly moving, and can configure a shorter period if the UE is moving faster, thereby better supporting the change of the AP in the cooperation set.

Example seven: and measuring channels of base stations in the cooperation set.

After the cooperation set is determined for the UE, the network side configures CSI-RS resources for the AP in the UE cooperation set, where the CSI-RS resources are used for the UE to measure a channel and feed back channel information (such as channel state information CSI, including RI, PMI, CQI, and the like, or an accurate channel matrix H), and the network side performs uplink and downlink scheduling by using the fed-back channel information, so as to implement data transmission under cooperation of L1 interference control level.

Since the CSI-RS transmission period is 5ms, the resource allocation of 8 antenna ports in one subframe is at least 5, for APs in the cooperation set, the APs can be considered to be grouped, in different subframes, a part of APs transmit CSI-RS, and all other APs are silent. For example, there are 6 APs in the UE cooperation set, and when the subframe is 0, the APs 0 to AP2 transmit CSI-RS on REs with 3 resource configurations; in subframe 1, the APs 3-5 transmit CSI-RSs on REs with 3 resource configurations. When the AP0 sends the CSI-RS on the resource configuration 0, the APs 1-5 silence on the resource configuration 0, and so on for other APs.

Example eight: measurement in handover.

Under the same C-RAN, all APs have the same CRS, belong to the same Cell, have the same Cell ID, and determine a cooperation area and a cooperation set through periodic CSI-RS RRM measurement, wherein the change of the cooperation area and the change of the APs in the cooperation set are mainly considered. Different C-RANs, belonging to different cells, need to consider the corresponding handover criteria. The network side configures CRS RRM measurement (such as RSRP, RSRQ measurement and measurement reporting conditions) for the UE, and then a normal switching process is carried out. When the C-RAN is switched to another C-RAN, the newly accessed C-RAN configures corresponding CSI-RS RRM measurement for the UE, and a new cooperation area and cooperation set determining process in the C-RAN is carried out.

Referring to fig. 6, on the centralized node side, an apparatus for determining a serving base station according to an embodiment of the present invention includes:

a first unit 61, configured to obtain a first measurement result reported by a UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

a second unit 62, configured to determine one or more serving base stations of the UE in the cooperation area according to the first measurement result.

The means for determining the serving base station may be a centralized node.

Preferably, the first unit is further configured to:

Preferably, the second unit is specifically configured to:

Referring to fig. 7, at the UE side, a measurement reporting apparatus provided in an embodiment of the present invention includes:

a third unit 71, configured to measure, according to the first measurement configuration information, a base station in a cooperation area in the centralized area to obtain a first measurement result;

a fourth unit 72, configured to report the first measurement result.

The measurement reporting device may be a UE.

and reporting the second measurement result.

and reporting the third measurement result.

Referring to fig. 8, on the base station side, an apparatus for determining a serving base station according to an embodiment of the present invention includes:

a fifth unit 81, configured to receive a first measurement result reported by a UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

a sixth unit 82, configured to send the first measurement result to a centralized node.

The means for determining the serving base station may be a base station.

and sending the second measurement result to a centralized node.

Preferably, the sixth unit is further configured to:

Each of the above units may be implemented by a physical device such as a processor having a transceiving function.

Referring to fig. 9, another apparatus for determining a serving base station according to an embodiment of the present invention includes:

the processor 500, which is used to read the program in the memory 520, executes the following processes:

the control transceiver 510 obtains a first measurement result reported by a user equipment UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

Preferably, before controlling the transceiver 510 to obtain the first measurement result reported by the UE, the processor 500 is further configured to:

the control transceiver 510 obtains a second measurement result reported by the UE, where the second measurement result is reported after the UE measures the cooperation area in the centralized area according to the second measurement configuration information;

Preferably, the processor 500, after determining the serving base station of the UE in the cooperation area, is further configured to:

Preferably, after instructing the base station in the cooperation area to send the third measurement configuration information for measuring the channel to the UE, the processor 500 is further configured to:

Preferably, when determining the serving base station of the UE in the cooperation area according to the first measurement result, the processor 500 is specifically configured to:

Where in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

Referring to fig. 10, at the UE side, another measurement reporting apparatus provided in the embodiment of the present invention includes:

the processor 600, which is used to read the program in the memory 620, executes the following processes:

the control transceiver 610 reports the first measurement result.

Preferably, the processor 600 is further configured to, before obtaining the first measurement result:

the transceiver 610 is controlled to report the second measurement result.

Preferably, after the processor 600 controls the transceiver 610 to report the second measurement result, the processor is further configured to:

the transceiver 610 is controlled to report the third measurement result.

Where in fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Referring to fig. 11, on the base station side, another apparatus for determining a serving base station according to an embodiment of the present invention includes:

the processor 700, which is used to read the program in the memory 720, executes the following processes:

the control transceiver 710 receives a first measurement result reported by a user equipment UE, where the first measurement result is reported after the UE measures a base station in a cooperation area in a centralized area according to first measurement configuration information;

the control transceiver 710 sends the first measurement result to the concentration node.

Preferably, before controlling the transceiver 710 to receive the first measurement result reported by the user equipment UE, the processor 700 is further configured to:

the control transceiver 710 receives a second measurement result reported by the UE, where the second measurement result is reported after the UE measures the cooperation area in the centralized area according to the second measurement configuration information;

the control transceiver 710 sends the second measurement result to the concentration node.

Preferably, the processor 700, after controlling the transceiver 710 to send the first measurement result to the centralized node, is further configured to:

controlling the transceiver 710 to transmit third measurement configuration information for measuring a channel to the UE;

the control transceiver 710 receives a third measurement result of the measurement channel reported by the UE;

and controlling the transceiver 710 to send the third measurement result to a centralized node, or perform resource scheduling for data transmission to the UE according to the third measurement result.

Preferably, the processor 700 is further configured to:

the control transceiver 710 transmits any one of the measurement configuration information to the UE through higher layer signaling or broadcast signaling.

Preferably, when the processor 700 controls the transceiver 710 to send any measurement configuration information to the UE through a higher layer signaling or a broadcast signaling, the processor is specifically configured to:

the control transceiver 710 receives a reference signal resource sent by the centralized node, generates measurement configuration information by using the reference signal resource and a measurement reporting condition, and sends the measurement configuration information to the UE through a high-level signaling or a broadcast signaling; or,

the control transceiver 710 receives the measurement configuration information sent by the centralized node and sends the measurement configuration information to the UE through a high layer signaling or a broadcast signaling.

Where in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

In summary, the embodiments of the present invention provide a base station identification and measurement scheme, in an ultra-dense networking scenario, a plurality of base stations are controlled by a centralized node to form a centralized cell, the plurality of base stations are divided into a plurality of cooperation areas, the base stations in the cooperation areas form a cooperation set, and the cooperation set is determined for each user in the cooperation areas. And identifying and measuring the centralized cells, the cooperation areas, the cooperation sets and the base stations in the cooperation sets in a hierarchical manner, so that the cooperation of the L1 interference control level is performed, and the purpose of improving the system performance is achieved. And different C-RANs belong to different cells, normal switching processes are carried out, and the determining and updating processes of the cooperation areas and the cooperation sets are carried out in the C-RAN.

The invention solves the problems of identification and measurement of the base stations in the intensive deployment scene, and identifies and measures the centralized cells, the cooperative areas, the cooperative sets and the base stations in the cooperative sets, thereby carrying out interference control and achieving the purpose of improving the system performance. Compared with the prior art, the method is more suitable for intensive deployment scenes and has higher efficiency and practicability.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for determining a serving base station, comprising:

determining one or more serving base stations of the UE in the cooperation area according to the first measurement result;

the method further comprises the following steps: acquiring a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures a cooperation area under a centralized area according to second measurement configuration information;

determining a cooperation area where the UE is located according to the second measurement result;

the first measurement configuration information indicates a first reference signal resource corresponding to a base station in a cooperation area; the second measurement configuration information indicates a second reference signal resource corresponding to a cooperation area;

the second measurement configuration information further indicates a measurement reporting condition of the second measurement result, where the measurement reporting condition includes: reporting the measurement result of the cooperation area corresponding to the maximum measurement value in the reference signal resources corresponding to each cooperation area as a second measurement result; or when the measured value on the reference signal resource of the adjacent cooperation area of the cooperation area to which the UE belongs is larger than the measured value on the reference signal resource of the cooperation area to which the UE belongs and the difference value reaches a first threshold value, reporting the measurement result of the adjacent cooperation area as a second measurement result.

2. The method of claim 1, wherein after determining the serving base station of the UE in the cooperation area, the method further comprises:

3. The method of claim 2, wherein after instructing the base station in the cooperation area to send third measurement configuration information for measuring channels to the UE, the method further comprises:

4. The method of claim 2, wherein the first measurement configuration information indicates corresponding first reference signal resources of a base station in a cooperation area; the third measurement configuration information indicates a third reference signal resource corresponding to the channel.

5. The method of claim 4, wherein the first reference signal resource is the same as the third reference signal resource.

6. The method according to any of claims 4-5, wherein the first measurement configuration information further indicates a measurement reporting condition of the first measurement result, and the measurement reporting condition of the first measurement result comprises:

reporting the measured value of which the difference value between the measured value on the first reference signal resource and the maximum measured value is smaller than a preset third threshold value as a first measured result;

wherein, any reference signal resource is a time frequency resource which is not used by the existing reference signal, broadcast channel and/or control channel; the number of antenna ports corresponding to any one of the reference signal resources is greater than 8.

7. The method of claim 1, wherein determining a serving base station of the UE in the cooperation area according to the first measurement result comprises:

8. A measurement reporting method is characterized by comprising the following steps:

the UE reports the first measurement result;

before obtaining the first measurement, the method further comprises:

the UE reports the second measurement result;

9. The method of claim 8, wherein after the UE reports the second measurement result, the method further comprises:

and the UE reports the third measurement result.

10. The method of claim 9, wherein the first measurement configuration information indicates corresponding first reference signal resources of a base station in a cooperation area; the third measurement configuration information indicates a third reference signal resource corresponding to the channel.

11. The method of claim 10, wherein the first reference signal resource is the same as the third reference signal resource.

12. The method according to any of claims 10-11, wherein the first measurement configuration information further indicates a measurement reporting condition of the first measurement result, and wherein the measurement reporting condition of the first measurement result comprises:

13. A method for determining a serving base station, comprising:

sending the first measurement result to a centralized node;

before receiving the first measurement result reported by the user equipment UE, the method further includes:

sending the second measurement result to a centralized node;

14. The method of claim 13, wherein after sending the first measurement result to a centralized node, the method further comprises:

15. The method according to claim 13 or 14, characterized in that the method further comprises the step of sending measurement configuration information to the UE:

16. The method of claim 15, wherein any of the measurement configuration information is sent to the UE via higher layer signaling or broadcast signaling.

17. An apparatus for determining a serving base station, comprising:

a second unit, configured to determine one or more serving base stations of the UE in the cooperation area according to the first measurement result;

the device also includes: acquiring a second measurement result reported by the UE, wherein the second measurement result is reported after the UE measures a cooperation area under a centralized area according to second measurement configuration information;

18. The apparatus of claim 17, wherein the second unit, after determining the serving base station of the UE in the cooperation area, is further configured to:

19. The apparatus of claim 18, wherein the second unit, after instructing the intra-cooperation area base station to send third measurement configuration information for measuring channels to the UE, is further configured to:

20. The apparatus according to claim 17, wherein the second unit is specifically configured to:

21. A measurement reporting apparatus, comprising:

a fourth unit, configured to report the first measurement result;

before obtaining the first measurement result, the third unit is further configured to:

reporting the second measurement result;

22. The apparatus of claim 21, wherein after reporting the second measurement result, the third unit is further configured to:

and reporting the third measurement result.

23. An apparatus for determining a serving base station, comprising:

a sixth unit, configured to send the first measurement result to a centralized node;

before receiving the first measurement result reported by the UE, the fifth unit is further configured to:

sending the second measurement result to a centralized node;

24. The apparatus of claim 23, wherein the sixth means, after sending the first measurement result to the centralized node, is further configured to:

25. The apparatus according to claim 23 or 24, wherein the sixth unit is further configured to: