WO2016011846A1

WO2016011846A1 - Cell radio network temporary identifier (c-rnti) allocation method and apparatus

Info

Publication number: WO2016011846A1
Application number: PCT/CN2015/079891
Authority: WO
Inventors: 陆扬; 陈卓; 江小威
Original assignee: 中国移动通信集团公司
Priority date: 2014-07-22
Filing date: 2015-05-27
Publication date: 2016-01-28
Also published as: CN105307177A; CN105307177B

Abstract

Provided are a cell radio network temporary identifier (C-RNTI) allocation method and apparatus, belonging to the field of wireless communications. The C-RNTI allocation method is applied to a first base station; the first base station can provide service to a user equipment (UE) together with a second base station by means of a double-connection architecture and allocate a C-RNTI to the UE according to the same C-RNTI set. The allocation method comprises: a receiving step, the first base station receiving C-RNTI allocation information of the second base station by means of an inter-base-station interface; a determination step, when the C-RNTI needs to be allocated to the UE collectively served by the first base station and the second base station, the first base station selecting a C-RNTI not used by the first base station and the second base station from the C-RNTI set according to the C-RNTI allocation information of the second base station; and an allocation step, the first base station allocating the C-RNTI to the UE. The present invention can solve the problem of the C-RNTI allocation conflict of a main base station and a slave base station.

Description

Cell wireless network temporary identification distribution method and device

The present application claims priority to Chinese Patent Application No. 201410351868.6, filed on Jan. 22, 2014, the entire content of

Technical field

The present invention relates to the field of wireless communications, and in particular to a cell wireless network temporary identifier allocation method and apparatus.

Background technique

The existing statistical results show that 60% of mobile operators' mobile voice services and 70% of data services are currently indoors; it is predicted that the future data services are expected to grow 1000 times in 10 years, and indoor data traffic will account for the total traffic. 90%. Therefore, the coverage of traditional cellular networks has become increasingly prominent in supporting the development of indoor and hotspot wireless data services. Mobile operators' network development faces various challenges:

(1) The limit of wireless access capacity of traditional 2G networks and 3G networks gradually appears;

(2) The difficulty of obtaining site and antenna feed resources is increasing. The station spacing of dense urban areas is close to the theoretical limit, and it is difficult to support the dense deployment of traditional cellular macro base stations;

(3) The deployment and operation cost of the macro base station is high, and the network construction method of adding a new macro base station to expand capacity is difficult to sustain.

In order to maintain the health and sustainable development of the industry chain, the development of mobile communication networks must consider how to continuously reduce the network construction, deployment and operation costs through innovations in network technology capabilities, deployment methods and operational methods.

There are currently two types of solutions for indoor and hotspot wireless data services: WiFi and LTE Small Cell. At present, the Pico base station and the home base station defined in the standard are collectively referred to as a Small Cell. Since the deployment of the small cell supports interference management, node self-starting, and sharing the core network and the network management system with the cellular network, the deployment and management thereof are relatively simple, and have become the main solution for the coverage and capacity of indoor and hotspot wireless data services in the future.

In the network environment where small cells are deployed, in order to utilize the resources of the macro base station more efficiently and improve the throughput of users, a carrier aggregation scheme between base stations is proposed in 3GPP (3rd Generation Partnership Project) Release 12 ( Dual connectivity architecture), as shown in Figure 1. Where user plane data can The primary base station (MeNB) and the secondary base station (SeNB) are simultaneously transmitted to the user equipment (UE), respectively, to improve the peak transmission rate of the user.

Based on the prior art, the C-RNTI (Cell Radio Network Temporary Identifier) of the UE under the subordinate base station can be allocated in the following two manners:

Manner 1: As shown in FIG. 2, the slave base station determines the C-RNTI allocated to the UE, the slave base station configures the C-RNTI1 under the slave base station for the UE1, and provides the information to the master base station; the master base station does not modify the slave base station to provide the Information: The primary base station generates RRC (Radio Resource Control) signaling and configures C-RNTI1 to UE1.

Manner 2: As shown in FIG. 3, the primary base station determines the C-RNTI allocated to the UE, and the primary base station configures the C-RNTI1 under the secondary base station for the UE1; the primary base station generates RRC signaling and configures the C-RNTI1 to the UE1.

However, the existing C-RNTI allocation method has the following defects:

If the C-RNTI is configured for the UE in the first mode, the C-RNTI1 configured by the subordinate base station may be the same as the C-RNTI1 used by the UE2 under the primary base station. Therefore, when the primary base station uses the C-RNTI1 to retrieve the UE, UE1 and UE2 are simultaneously found. This makes it impossible to distinguish between UE1 and UE2.

If the C-RNTI under the secondary base station is configured for the UE in the second mode, the C-RNTI1 configured by the primary base station may be the same as the C-RNTI1 used by the UE3 under the secondary base station, so when the secondary base station uses the C-RNTI1 to retrieve the UE, UE1 and UE3 are found, resulting in inability to distinguish between UE1 and UE3.

In summary, the existing C-RNTI allocation mode may cause the C-RNTI allocated by the primary base station and the secondary base station to collide with the UE.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method and a device for assigning a temporary identifier of a cell radio network, which can solve the problem of the C-RNTI allocation conflict between the primary base station and the secondary base station.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:

In one aspect, a cell radio network temporary identifier C-RNTI allocation method is provided for a first base station, and the first base station and the second base station can provide a service for a user equipment UE in a dual connectivity architecture, the first base station and The second base station allocates a C-RNTI to the UE according to the same C-RNTI set, where the allocation method includes:

Receiving, the first base station receiving C-RNTI allocation information of the second base station by using an interface between the base stations;

a determining step, when the C-RNTI needs to be allocated to the UE that is jointly served by the first base station and the second base station, the first base station is configured from the C-RNTI set according to the C-RNTI allocation information of the second base station Selecting a C-RNTI that is not used by the first base station and the second base station;

In the assigning step, the first base station allocates the C-RNTI to the UE.

Further, the C-RNTI allocation information of the second base station includes a C-RNTI or an unused C-RNTI that has been used by the second base station.

Further, the C-RNTI allocation information of the second base station includes a C-RNTI allocation interval that can be used by the second base station, and the determining step specifically includes:

The first base station selects a C-RNTI from the C-RNTIs other than the C-RNTI allocation interval that the second base station can use in the C-RNTI set.

Further, before the receiving step, the method further includes:

In the negotiation step, the first base station negotiates a C-RNTI allocation interval that can be used by the first base station with the second base station, and the C-RNTI allocation interval that the first base station can use and the second base station can The C-RNTI allocation intervals used do not overlap.

Further, when the first base station is a slave base station, and the second base station is a master base station, the allocating step includes:

The first base station sends the C-RNTI to the second base station through an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the first The base station allocates, and causes the second base station to record the C-RNTI as being configured to the UE.

Further, when the first base station is a primary base station, and the second base station is a secondary base station, the allocating step includes:

The first base station sends the C-RNTI to the second base station through an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the first The base station allocates and records the C-RNTI as being configured for the UE.

Further, after the step of allocating, the method further includes:

a notification step, after the first base station releases the C-RNTI allocated to the UE, the first base station notifies the C-RNTI to the second base station by using an interface between the base stations, so that the second The base station can use the C-RNTI.

An embodiment of the present invention further provides a cell radio network temporary identifier C-RNTI allocation device, For the first base station, the first base station and the second base station can provide a service for the user equipment UE in a dual connectivity architecture, and the first base station and the second base station allocate a C-RNTI to the UE according to the same C-RNTI set. The distribution device includes:

a receiving module, configured to receive C-RNTI allocation information of the second base station by using an interface between the base stations;

a determining module, configured to: when the C-RNTI needs to be allocated to the UE that is jointly served by the first base station and the second base station, select one from the C-RNTI set according to the C-RNTI allocation information of the second base station a C-RNTI used by the first base station and the second base station;

And an allocation module, configured to allocate the C-RNTI to the UE.

Further, the C-RNTI allocation information of the second base station includes a C-RNTI allocation interval that the second base station can use, and the determining module is specifically configured to: from the C-RNTI set, the second base station can A C-RNTI is selected among C-RNTIs other than the used C-RNTI allocation interval.

Further, the device further includes:

a negotiation module, configured to negotiate, by using an interface between the base stations, a C-RNTI allocation interval that can be used by the second base station, where the first base station can use the C-RNTI allocation interval and the second base station can use the C - The RNTI allocation intervals do not overlap.

Further, when the first base station is a slave base station, and the second base station is a master base station,

The allocating module is configured to send the C-RNTI to the second base station by using an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the And being allocated by the first base station, and causing the second base station to record the C-RNTI as being configured to the UE.

Further, when the first base station is a primary base station, and the second base station is a secondary base station,

The allocating module is configured to send the C-RNTI to the second base station by using an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the The first base station allocates, and records the C-RNTI as being configured for the UE.

Further, the device further includes:

a notification module, configured to: after the first base station releases the C-RNTI allocated to the UE, notify the C-RNTI to the second base station by using an interface between the base stations, so that the second base station can Enough to use the C-RNTI.

Embodiments of the present invention have the following beneficial effects:

In the above solution, the first base station and the second base station can provide services for the UE in a dual connectivity architecture, and the first base station and the second base station allocate C-RNTIs to the UE according to the same C-RNTI set, where the first base station and the second base station are needed. When the UE served by the base station allocates the C-RNTI, the first base station selects a C-RNTI that is not used by the first base station and the second base station from the C-RNTI set according to the C-RNTI allocation information of the second base station, and The C-RNTI is allocated to the UE. The technical solution of the present invention can solve the problem of allocation conflict between the primary base station and the secondary base station C-RNTI.

DRAWINGS

1 is a schematic diagram of carrier aggregation between base stations;

2 is a schematic diagram of a dependent base station determining a C-RNTI allocated to a UE;

FIG. 3 is a schematic diagram of determining, by a primary base station, a C-RNTI allocated to a UE;

4 is a schematic flowchart of a method for assigning a temporary identifier of a cell wireless network according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a cell wireless network temporary identifier distribution apparatus according to an embodiment of the present invention.

detailed description

The technical problems, the technical solutions, and the advantages of the embodiments of the present invention will be more clearly described in the following description.

The embodiment of the present invention provides a cell wireless network temporary identifier allocation method and device, which can solve the problem that the existing C-RNTI allocation mode may cause the C-RNTI allocated by the primary base station and the secondary base station to collide with the UE. A problem of allocation conflict with the subordinate base station C-RNTI.

4 is a schematic flowchart of a method for allocating a temporary identifier of a cell radio network according to an embodiment of the present invention. The C-RNTI allocation method of the present invention is used by a first base station, and the first base station and the second base station can be dual-connected as a user equipment UE. Providing a service, the first base station and the second base station allocate a C-RNTI to the UE according to the same C-RNTI set. As shown in FIG. 4, the allocation method includes:

a determining step, when the C-RNTI needs to be allocated to the UE that is jointly served by the first base station and the second base station, the first base station selects one of the C-RNTI sets from the first base station and the second C-RNTI used by the base station;

In the assigning step, the first base station allocates the C-RNTI to the UE.

In the C-RNTI allocation method of the present invention, the first base station and the second base station can provide the UE with the dual-connection architecture, and the first base station and the second base station allocate the C-RNTI to the UE according to the same C-RNTI set. When a UE that is jointly served by a base station and a second base station allocates a C-RNTI, the first base station selects, from the C-RNTI set, a C-not used by the first base station and the second base station according to the C-RNTI allocation information of the second base station. The RNTI allocates the C-RNTI to the UE. The technical solution of the present invention can solve the problem of allocation conflict between the primary base station and the secondary base station C-RNTI.

Further, in another embodiment of the present invention, the C-RNTI allocation information of the second base station includes a C-RNTI used by the second base station or an unused C-RNTI.

Further, in another embodiment of the present invention, the C-RNTI allocation information of the second base station includes a C-RNTI allocation interval that can be used by the second base station, where the determining step is specific. include:

Further, in another embodiment of the present invention, including the foregoing steps, before the receiving step, the method further includes:

Further, in another embodiment of the present invention, including the foregoing steps, when the first base station is a slave base station, and the second base station is a master base station, the assigning step includes:

Further, in another embodiment of the present invention, including the foregoing steps, when the first base station is a primary base station, and the second base station is a secondary base station, the allocating step includes:

The first base station sends the C-RNTI to the second base station through an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the first Base The station allocates and records the C-RNTI as being configured for the UE.

Further, after the step of allocating, the method further includes:

FIG. 5 is a structural block diagram of a cell radio network temporary identifier allocation apparatus according to an embodiment of the present invention. The C-RNTI allocation apparatus of the present invention is used by a first base station, and the first base station and the second base station can be dual-connected as a user equipment UE. Providing a service, the first base station and the second base station allocate a C-RNTI to the UE according to the same C-RNTI set. As shown in FIG. 5, the distribution apparatus includes:

And an allocation module, configured to allocate the C-RNTI to the UE.

In the embodiment of the present invention, the first base station and the second base station can provide the UE with the dual-connection architecture, and the first base station and the second base station allocate the C-RNTI to the UE according to the same C-RNTI set, where the first base station and the need are needed. When the UE served by the second base station allocates the C-RNTI, the C-RNTI allocation apparatus of the present invention selects one of the C-RNTI sets that is not used by the first base station and the second base station according to the C-RNTI allocation information of the second base station. The C-RNTI allocates the C-RNTI to the UE. The technical solution of the present invention can solve the problem of allocation conflict between the primary base station and the secondary base station C-RNTI.

Further, the device further includes: a negotiation module, configured to negotiate, by using an interface between the base stations, the C-RNTI allocation interval that can be used by the second base station, where the first base station can use the C-RNTI allocation interval and The C-RNTI allocation intervals that the second base station can use do not overlap.

Further, the device further includes:

a notification module, configured to: after the first base station releases the C-RNTI allocated to the UE, notify the C-RNTI to the second base station by using an interface between the base stations, so that the second base station can use The C-RNTI.

The cell wireless network temporary identifier allocation method of the present invention is further introduced in the following with reference to specific embodiments and implementations:

Embodiment 1

In this embodiment, the primary base station and the secondary base station simultaneously transmit user data for the UE, and the secondary base station determines the C-RNTI allocated to the UE. Specifically, the present embodiment can solve the problem that the primary base station and the secondary base station C-RNTI are allocated conflicts through the following embodiments.

Embodiment 1: The primary base station notifies the base station of its own real-time C-RNTI allocation status to the base station whose coverage or overlaps with its coverage through the inter-base station interface (that is, those base stations that may be dual-connected with it), such as each base station available. The C-RNTIs are both 1-100, and the C-RNTIs 1-50 of the primary base station are occupied, and the C-RNTIs 51-100 are still unassigned, and the primary base station can inform the slaves through the interface with the slave base stations. The base station itself has used C-RNTI No. 1-50. For the update of the C-RNTI allocation status information, the primary base station may adopt an incremental configuration manner. For example, when the C-RNTI 51 is used by the primary base station, the primary base station only needs to notify the secondary base station No. 51 C-RNTI to use this information. The allocation status of the C-RNTI No. 51 is updated from the unallocated to the used; or, when the C-RNTI No. 49 is available, the primary base station only needs to inform the secondary base station No. 49 that the C-RNTI is not used to use the information to the 49th C. - The status of the RNTI has changed from used to unallocated.

When a dependent base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the slave The base station selects a C-RNTI from the unused C-RNTIs of the primary base station and allocates the C-RNTI to the UE, and then the slave base station sends the C-RNTI allocated to the UE to the primary base station through an interface with the primary base station, so that the primary base station generates The RRC message is configured to configure the C-RNTI to the UE.

Embodiment 2: When a dependent base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the slave base station randomly selects one C-RNTI to allocate to the UE, and then the interface between the slave base station and the primary base station will be The C-RNTI allocated by the UE is sent to the primary base station, and the primary base station identifies the C-RNTI, indicating that the C-RNTI is allocated by the secondary base station, and the primary base station does not allocate the C-RNTI to other UEs, and the primary base station An RRC message is generated, and the C-RNTI is configured to the UE.

Embodiment 3: The primary base station notifies the base station within its coverage or overlapping with the C-RNTI allocation interval that can be used by the primary base station, for example, the C-RNTI available to each base station is 1-100, the main The base station can use the C-RNTI numbered 1-60. When the slave base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the slave base station selects a C-RNTI from the C-RNTI number 61-100 and allocates it to the UE. Then, the slave base station sends the C-RNTI allocated to the UE to the master base station through an interface with the master base station, and the master base station generates an RRC message, and configures the C-RNTI to the UE.

Embodiment 4: When the slave base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the slave base station randomly selects one C-RNTI to allocate to the UE, and then the interface between the slave base station and the master base station will be The C-RNTI allocated by the UE is sent to the primary base station, and the primary base station performs C-RNTI collision detection to detect whether the C-RNTI conflicts with the C-RNTI used by the primary base station, if the C-RNTI and the primary base station have used C - RNTI collision, the primary base station returns a C-RNTI collision detection result to the secondary base station, requesting the secondary base station to reconfigure the new C-RNTI; after receiving the request, the secondary base station re-assigns a new C-RNTI to the UE, and The new C-RNTI is sent to the primary base station, and the primary base station performs C-RNTI collision detection again. If the new C-RNTI still collides with the C-RNTI used by the primary base station, the process is repeated if the secondary base station is the UE. If the allocated C-RNTI has no conflict with the C-RNTI used by the primary base station, the primary base station generates an RRC message, and configures the C-RNTI to the UE.

Embodiment 5: When the slave base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the slave base station randomly selects one C-RNTI to allocate to the UE, and then the interface between the slave base station and the master base station will be The C-RNTI allocated by the UE is sent to the primary base station, and the primary base station performs C-RNTI collision detection, detecting whether the C-RNTI collides with the C-RNTI used by the primary base station. If the C-RNTI collides with the C-RNTI used by the primary base station, the primary base station configures new UEs for causing collisions. The C-RNTI, and generates an RRC message, and configures the C-RNTI to the UE.

Further, after the slave base station releases the C-RNTI allocated to the UE, the slave base station notifies the master base station of the released C-RNTI through the interface between the base stations, so that the master base station can use the C-RNTI.

Embodiment 2

In this embodiment, the primary base station and the secondary base station simultaneously transmit user data for the UE, and the primary base station determines the C-RNTI allocated to the UE. Specifically, the present embodiment can solve the problem that the primary base station and the secondary base station C-RNTI are allocated conflicts through the following embodiments.

Embodiment 1: The subordinate base station informs its own real-time C-RNTI allocation status through the inter-base station interface to the base station whose coverage or overlaps with its coverage (that is, those base stations that may be dual-connected with it), such as each base station available. The C-RNTIs are all 1-100, and the C-RNTIs 1-50 of the subordinate base stations are occupied, and the C-RNTIs 51-100 are still unassigned, and the subordinate base station can inform the main interface through the interface with the main base station. The base station itself has used C-RNTI No. 1-50. For the update of the C-RNTI allocation status information, the subordinate base station may adopt an incremental configuration manner. For example, when the C-RNTI 51 is used by the subordinate base station, the subordinate base station only needs to notify the main base station No. 51 C-RNTI to use this information. The allocation status of the C-RNTI No. 51 is updated from the unallocated to the used; or, when the C-RNTI No. 49 is available, the subordinate base station only needs to inform the primary base station that the C-RNTI No. 49 is not used to use the information to the 49th C. - The status of the RNTI has changed from used to unallocated.

When the primary base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the primary base station selects one C-RNTI from the C-RNTIs that are not used by the secondary base station, and then allocates the C-RNTI to the UE, and then the primary base station generates an RRC message, and then the primary base station generates an RRC message. The C-RNTI is configured for the UE.

Embodiment 2: When the primary base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the primary base station randomly selects a C-RNTI to allocate to the UE, and the primary base station generates an RRC message, and configures the C-RNTI to the UE. Then, the primary base station sends the C-RNTI allocated to the UE to the secondary base station through an interface with the secondary base station, and the secondary base station identifies the C-RNTI, indicating that the C-RNTI is allocated by the primary base station, and the secondary base station does not. The C-RNTI is then allocated to other UEs.

Embodiment 3: The subordinate base station notifies the base station within its coverage or overlapping with the coverage area of the C-RNTI allocation interval that can be used by the subordinate base station interface, for example, each base station is available. The C-RNTI is 1-100, and the secondary base station can use the C-RNTI number 61-100. When the primary base station needs to allocate a C-RNTI for a UE that is performing dual-connection transmission, the primary base station is from the 1-60 C-RN. The RNTI selects a C-RNTI to allocate to the UE, and then the primary base station generates an RRC message, and configures the C-RNTI to the UE.

Embodiment 4: When the primary base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the primary base station randomly selects a C-RNTI to allocate to the UE, and then the primary base station passes the interface with the secondary base station. The C-RNTI allocated by the UE is sent to the slave base station, and the slave base station performs C-RNTI collision detection to detect whether the C-RNTI collides with the C-RNTI used by the slave base station, if the C-RNTI and the slave base station have used the C- If the RNTI conflicts, the slave base station returns a C-RNTI collision detection result to the primary base station, requesting the primary base station to reconfigure the new C-RNTI; after receiving the request, the primary base station re-assigns a new C-RNTI to the UE, and The new C-RNTI is sent to the secondary base station, and the secondary base station performs C-RNTI collision detection again. If the new C-RNTI still conflicts with the C-RNTI used by the secondary base station, the process is repeated if the primary base station allocates the UE. The C-RNTI does not collide with the C-RNTI used by the slave base station, and the master base station generates an RRC message, and configures the C-RNTI to the UE.

Embodiment 5: When the primary base station needs to allocate a C-RNTI to a UE that is performing dual-connection transmission, the primary base station randomly selects a C-RNTI to allocate to the UE, and generates an RRC message, and configures the C-RNTI to the UE. . Then, the primary base station sends the C-RNTI allocated to the UE to the secondary base station through an interface with the secondary base station, and the secondary base station performs C-RNTI collision detection to detect whether the C-RNTI conflicts with the used C-RNTI of the secondary base station. If the C-RNTI collides with the C-RNTI that the slave base station has used, the slave base station configures a new C-RNTI for other UEs that cause the collision.

Further, after the primary base station releases the C-RNTI allocated to the UE, the primary base station notifies the secondary base station of the released C-RNTI through the interface between the base stations, so that the secondary base station can use the C-RNTI.

The present invention provides an interaction and negotiation mechanism for C-RNTI allocation information between a primary base station and a secondary base station, which can solve the problem of allocation conflict between the primary base station and the secondary base station C-RNTI.

Many of the functional components described in this specification are referred to as modules to more particularly emphasize the independence of their implementation.

In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. For example, an identified executable code module can include one or more of the computer instructions A logical or logical block, for example, can be constructed as an object, procedure, or function. Nevertheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different physicalities. When these instructions are logically combined, they constitute a module and achieve the specified purpose of the module. .

In practice, the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices. As such, operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.

When the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost. The hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components. The modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

In the method embodiments of the present invention, the sequence numbers of the steps are not used to limit the sequence of the steps. For those skilled in the art, the steps of the steps are changed without any creative work. It is also within the scope of the invention.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

A method for allocating a cell radio network temporary identifier C-RNT1, characterized in that it is used for a first base station, and the first base station and the second base station can provide a service for a user equipment UE in a dual connectivity architecture, the first base station and The second base station allocates a C-RNTI to the UE according to the same C-RNTI set, where the allocation method includes:

In the receiving step, the first base station receives the C-RNT1 allocation information of the second base station by using an interface between the base stations;

a determining step, when the C-RNTI needs to be allocated to the UE that is jointly served by the first base station and the second base station, the first base station is configured from the C-RNTI set according to the C-RNT1 allocation information of the second base station Selecting a C-RNTI that is not used by the first base station and the second base station;

In the assigning step, the first base station allocates the C-RNT1 to the UE.
The C-RNT1 allocation method according to claim 1, wherein the C-RNT1 allocation information of the second base station comprises a C-RNTI or an unused C-RNTI that has been used by the second base station.
The C-RNT1 allocation method according to claim 1, wherein the C-RNT1 allocation information of the second base station includes a C-RNT1 allocation interval that can be used by the second base station, and the determining step specifically includes:

The first base station selects a C-RNTI from the C-RNTIs other than the C-RNT1 allocation interval that the second base station can use in the C-RNTI set.
The C-RNT1 allocation method according to claim 3, wherein the receiving step further comprises:

In the negotiation step, the first base station negotiates with the second base station, by using an interface between the base stations, a C-RNT1 allocation interval that can be used by the first base station, and the C-RNT1 allocation interval that the first base station can use and the second base station can The C-RNT1 allocation intervals used do not overlap.
The C-RNT1 allocation method according to claim 1, wherein when the first base station is a slave base station and the second base station is a master base station, the allocating step includes:

The first base station sends the C-RNTI to the second base station through an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the first The base station allocates, and causes the second base station to record the C-RNTI as being configured to the UE.
The C-RNT1 allocation method according to claim 1, wherein when the first base station is a primary base station and the second base station is a secondary base station, the assigning step includes:

The first base station sends the C-RNTI to the second base station through an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the first The base station allocates and records the C-RNTI as being configured for the UE.
The C-RNT1 allocation method according to claim 1, wherein the step of assigning further comprises:

a notification step, after the first base station releases the C-RNTI allocated to the UE, the first base station notifies the C-RNTI to the second base station by using an interface between the base stations, so that the second The base station can use the C-RNTI.
A cell radio network temporary identifier C-RNT1 allocation device, configured to be used by a first base station, wherein the first base station and the second base station can provide a service for a user equipment UE in a dual connectivity architecture, the first base station and The second base station allocates a C-RNTI to the UE according to the same C-RNTI set, and the distributing device includes:

a receiving module, configured to receive, by using an interface between the base stations, C-RNT1 allocation information of the second base station;

a determining module, configured to: when the C-RNTI needs to be allocated to the UE that is jointly served by the first base station and the second base station, select one from the C-RNTI set according to the C-RNT1 allocation information of the second base station a C-RNTI used by the first base station and the second base station;

And an allocation module, configured to allocate the C-RNT1 to the UE.
The C-RNT1 allocation apparatus according to claim 8, wherein the C-RNT1 allocation information of the second base station comprises a C-RNTI or an unused C-RNTI that has been used by the second base station.
The C-RNT1 allocation apparatus according to claim 8, wherein the C-RNT1 allocation information of the second base station includes a C-RNT1 allocation interval that the second base station can use, and the determining module is specifically configured to: Selecting a C-RNTI from the C-RNTIs other than the C-RNT1 allocation interval that the second base station can use in the C-RNTI set.
The C-RNT1 distribution device according to claim 10, wherein the device further comprises:

a negotiation module, configured to negotiate, by using an interface between the base stations, a C-RNT1 allocation interval that can be used by the second base station, where the first base station can use the C-RNT1 allocation interval and the second base station The C-RNT1 allocation intervals that can be used do not overlap.
The C-RNT1 distribution apparatus according to claim 8, wherein when the first base station is a slave base station and the second base station is a master base station,

The allocating module is configured to send the C-RNTI to the second base station by using an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the And being allocated by the first base station, and causing the second base station to record the C-RNTI as being configured to the UE.
The C-RNT1 allocation apparatus according to claim 8, wherein when the first base station is a primary base station and the second base station is a secondary base station,

The allocating module is configured to send the C-RNTI to the second base station by using an interface between the base stations, so that the second base station identifies the C-RNTI, and identifies the C-RNTI as the The first base station allocates, and records the C-RNTI as being configured for the UE.
The C-RNT1 distribution device according to claim 8, wherein the device further comprises:

a notification module, configured to: after the first base station releases the C-RNTI allocated to the UE, notify the C-RNTI to the second base station by using an interface between the base stations, so that the second base station can use The C-RNTI.