WO2014056307A1 - Method, base station and system for transmitting system information - Google Patents

Abstract

Disclosed are a method, base station and system for transmitting system information, which relate to the field of wireless communications, and can reduce the downlink overhead so as to optimize the performance of the whole network. The method of the present invention comprises: receiving global system information broadcasted by a base station in a cell, the global system information containing configuration information about regional system information about each region in the cell; and in accordance with the configuration information about the regional system information, acquiring the regional system information broadcasted by the base station in the region. The embodiments of the present invention are mainly used in the process of system information transmission.

Description

 System information transmission method, base station and system The present application claims to be Chinese patent application filed on October 09, 2012, the application number is 201210379989.2, and the invention name is "a system information transmission method, base station and system" Priority is hereby incorporated by reference in its entirety.

Technical field

 The present invention relates to the field of wireless communications, and in particular, to a system information transmission method, a base station, and a system. Background technique

 In the Long Term Evolution (LTE) system, system information (SI) exists in two forms: a master information block (MIB) and a system information block (SIB). Configuring system information for each cell ensures that the cell operates reliably in its environment. When the user equipment (UE) switches from one cell to another, it needs to receive and demodulate all system information of another cell. In order to reduce frequent handover of the UE during the mobile process, the larger the radius of the cell, the better. However, in order to increase the capacity of the system, it is proposed to divide the existing cell into more sub-cells. Therefore, a contradiction between switching and capacity is caused.

In order to resolve this contradiction, we propose a C-Radio Access Network (CRAN) technology with the capabilities of energy saving, clean, centralized, cooperative and cloud computing. In the LTE system, the MIB carries the transmission in the physical broadcast channel (PBCH), and the SIB carries the transmission in the physical downlink shared channel (PDSCH). When the radius of the cell is large and the environment covered by the cell is relatively complicated, the unified system information configuration needs to take into account the needs of all users. Only the most basic configuration information (for example, MIB) is included in the broadcast message, and other system information is separately configured for each UE by means of signaling.

 In the process of implementing the above-mentioned system information transmission, the inventor has found that at least the following problems exist in the prior art: The separate configuration of each UE in the manner of sending signaling requires a large downlink overhead, thereby failing to achieve the performance of the entire network. optimization. Summary of the invention

 Embodiments of the present invention provide a system information transmission method, a base station, and a system, which can reduce downlink overhead and optimize network performance.

 A first aspect of the embodiments of the present invention provides a system information transmission method, including: receiving global system information broadcasted by a base station in a cell, where the global system information includes configuration information of area system information of each area in the cell. ;

 Obtaining area system information broadcast by the base station in the area according to the configuration information of the area system information.

 With reference to the first aspect, in a possible implementation manner, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. Logo.

 With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.

 Before the obtaining the area system information broadcast by the base station in the area according to the configuration information of the area system information, the method includes:

 The area system information identifier is calculated according to the pre-configured identifier calculation rule. With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the acquiring the regional system information that is broadcast by the base station in the area according to the configuration information of the area system information includes:

Detecting a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH using the regional system information identifier; from the PDCCH or the Acquiring downlink control information DCI in the E-PDCCH; demodulating the regional system information from the physical downlink shared channel PDSCH according to the DCI.

 With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the acquiring the regional system information that is broadcast by the base station in the area according to the configuration information of the area system information includes:

 Determining an area system information identifier according to the location information of the user equipment UE and the coverage area information; detecting the PDCCH or the E-PDCCH by using the selected area system information identifier; acquiring corresponding information from the PDCCH or the E-PDCCH DCI; demodulating the regional system information from the PDSCH according to the DCI.

 With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the carrying manner of the configuration information includes:

 A dedicated data domain hosted in existing global system information; or / and, carried in dedicated global system information.

 In combination with the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the area system information identifier includes: a predefined area system information radio network temporary identifier RI-RNTI.

 A second aspect of the embodiments of the present invention further provides a system information transmission method, including

 Broadcasting global system information in a cell, where the global system information includes configuration information of area system information in the cell;

 The corresponding area system information is broadcasted in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE receives the area system information according to the configuration information.

With reference to the second aspect, in a possible implementation, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. And the configuration information includes: the number of items of the regional system information in the cell and the information of each area system Composition.

 With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the carrying manner of the configuration information includes:

 A dedicated data domain hosted in existing global system information; or / and, carried in dedicated global system information.

 With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: coverage area information of each area system information.

 A third aspect of the embodiments of the present invention further provides a user equipment UE, including: a receiving unit, configured to receive global system information that is broadcast by a base station in a cell, where the global system information includes an area of each area in the cell. Configuration information of system information;

 And an obtaining unit, configured to acquire, according to configuration information of the area system information received by the receiving unit, area system information that is broadcast by the base station in the area.

 With reference to the third aspect, in a possible implementation manner, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and regional system information corresponding to each area system information. Logo.

 With reference to the third aspect and the foregoing possible implementation manners, in another possible implementation manner, the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.

 The UE further includes:

 The calculating unit is configured to calculate the area system information identifier according to the pre-configured identifier calculation rule before the acquiring unit acquires the area system information broadcasted by the base station in the area according to the configuration information of the area system information.

 With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the acquiring unit includes:

a first detecting module, configured to detect, by using the area system information identifier, a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH; a first acquiring module, configured to: after the first detecting module detects the success,

Obtaining corresponding downlink control information DCI in the PDCCH or the E-PDCCH;

 And a first demodulation module, configured to demodulate the area system information from the physical downlink shared channel PDSCH according to the DCI acquired by the first acquiring module.

 With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: coverage area information of each area system information.

 The obtaining unit further includes:

 a selection module, configured to select an area system information identifier according to the UE location information and the coverage area information;

 a second detecting module, configured to detect a PDCCH or an E-PDCCH by using the selected regional system information identifier;

 a second acquiring module, configured to acquire, according to the second detection module, the corresponding DCI from the PDCCH or the E-PDCCH;

 And a second demodulation module, configured to demodulate the area system information from the PDSCH according to the DCI acquired by the second obtaining module.

 A fourth aspect of the embodiments of the present invention provides a base station, including:

 a storage unit, configured to store global system information and regional system information;

 a broadcast unit, configured to broadcast global system information stored in the storage unit in a cell, where the global system information includes configuration information of area system information in the cell;

 The broadcast unit is further configured to: broadcast the area system information corresponding to the area stored in the storage unit in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE is according to the global The system information receives the regional system information.

With reference to the fourth aspect, in a possible implementation, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. Identification; or, the configuration letter The information includes: the number of items of regional system information in the cell and the composition of system information of each area.

 With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: coverage area information of each area system information.

 In combination with the fourth aspect and the above possible implementation manner, in another possible implementation manner,

 A fifth aspect of the embodiments of the present invention further provides a system information transmission system, including: a user equipment UE; and a base station.

 The UE is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of the area system information in the cell, and the regional system information that is broadcast in the area according to the global system information. .

 The base station is configured to broadcast global system information in a cell, where the global system information includes configuration information of area system information in the cell; and broadcast corresponding area system information in the area according to pre-configured area coverage information. So that the UE receives the regional system information according to the global system information.

 The system information transmission method, the base station, and the system provided by the embodiment of the present invention broadcast global system information in a cell, where the global system information includes configuration information of the area system information in the cell, and then according to the pre-configured area coverage information. Transmitting the corresponding area system information in the area, so that the user equipment UE receives the area system information according to the configuration information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only Is some embodiments of the invention, for Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.

 1 is a flowchart of a system signal transmission method according to Embodiment 1 of the present invention; FIG. 2 is a flowchart of a system signal transmission method according to Embodiment 2 of the present invention; FIG. 3 is a flowchart of Embodiment 3 of the present invention; FIG. 4 is a flowchart of another system information transmission method in Embodiment 3 of the present invention; FIG. 5 is a schematic diagram of a composition of a user equipment UE according to Embodiment 4 of the present invention; 6 is a schematic structural diagram of another user equipment UE in Embodiment 4 of the present invention; FIG. 7 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention;

 8 is a schematic diagram of a composition of a user equipment UE according to Embodiment 6 of the present invention; FIG. 9 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention;

 Figure 10 is a schematic diagram showing the composition of a system information transmission system in an embodiment S of the present invention.

detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 Example 1

 An embodiment of the present invention provides a system information transmission method. As shown in FIG. 1, the method includes: 101. Receive global system information broadcasted by a base station in a cell, where the global system information includes regional system information of each area in the cell. Configuration information.

The cell system information includes the global system information and the regional system information, where the global system information is applicable to all the user equipments (User Equipments, UEs) in the cell, and can be directly delivered through the broadcast, including the main system information. Master Information Block (MIB) and System Information Block (System Information) SIB 1 in Block, SIB); The area system information may be configured differently for UEs in different areas of the cell, and the area system information applicable to UEs in different areas may be different.

 The configuration information of the area system information includes: the number of items of the area system information in the cell, the composition of each area system information, and the area system information identifier corresponding to each area system information. 102. Acquire, according to configuration information of the area system information, area system information that is broadcast by the base station in the area.

 The UE may obtain the area system information broadcast by the base station in the area according to the area system information identifier included in the configuration information.

 The system information transmission method provided by the embodiment of the present invention receives the global system information broadcasted by the base station in the cell, and then receives the regional system information broadcasted in the area according to the configuration information of the regional system information in the cell included in the global system information. Compared with the configuration information that the base station broadcasts in the prior art and then receives the configuration information sent by the base station in the signaling manner, the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced. The downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.

 Example 2

 An embodiment of the present invention provides a system information transmission method, as shown in FIG. 2, including:

201. Broadcast global system information in a cell.

 The base station may broadcast the global system information by using all the transmission points in the base station, so that all the UEs in the cell can receive the global system information, and can be configured according to the regional system information in the global system information. The information receives the regional system information.

 202. Broadcast the corresponding area system information in each area of the cell according to the pre-configured area coverage information.

The area system information may include: at least one of SIB2 to SIB 13 in the SIB, where the pre-configured area coverage information may include: The result of the division, the regional system information corresponding to each region after dividing the region, the transmission points distributed in each region, and the like.

 It should be noted that the specific description of some method steps in the system information transmission method provided by the embodiment of the present invention may refer to the corresponding content in the first embodiment, and the details are not described in detail in this embodiment.

 The system information transmission method provided by the embodiment of the present invention broadcasts global system information in a cell, where the global system information includes configuration information of the area system information in the cell, and then according to the pre-configured area coverage information, in the area. The corresponding area system information is broadcasted such that the user equipment UE receives the area system information according to the configuration information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network.

 Example 3

 The embodiment of the present invention provides a system information transmission method. As shown in FIG. 3, the method includes: 301: A base station broadcasts global system information in a cell, where the global system information includes configuration information of area system information in the cell.

The global system information may include an MIB and an SIB 1 , where the MIB mainly includes: a downlink system bandwidth, a physical Hybrid-ARQ Indicator Channel (PHICH) configuration, and a system frame number information. The H-ARQ is a Hybrid-Automatic Repeat-Quest (H-ARQ). Furthermore, it is carried in a Physical Broadcast Channel (PBCH) and broadcasts to the cell in a transmission period of 40 ms. The SIB 1 is carried in a Physical Downlink Shared Channel (PD SCH ) and broadcasts to the cell in a transmission period of 80 ms. The area system information includes at least one of SIB2 - SIB 13 in the SIB, and the bearer is broadcasted in the PDSCH to the intra-cell, and the transmission period is configurable. 302. The UE receives global system information that is broadcast by the base station in the cell.

 The configuration information loading manner of the area system information included in the global system information may include: a dedicated data domain carried in the existing global system information; or / and, carried in the dedicated global system information.

 The private data domain that is configured to be carried in the existing global system information may be: adding a new data domain to the existing global system information, specifically for carrying the configuration information, for example, in the A new data field R-SIB-Config is added to the MIB or the SIB 1 for carrying the configuration information.

 The configuration information is carried in the dedicated global system information, and may be: redefining a new system information in the global system information, where the system information does not include the MIB or the SIB 1 , and is specifically used to carry the configuration. The information, for example, redefines a new system information R-SIB in the global system information for carrying the configuration information. The configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information. For example, the configuration information may include: three pieces of regional system information, which are assumed to be regional system information A, regional system information B, and regional system information C; regional system information A may be composed of SIB2 and SIB3, and regional system information B may be composed of SIB2, SIB4 and SIB 1 1 are composed, and the regional system information C can be composed of SIB5 and SIB8; the regional system information identifier A corresponding to the regional system information A, the regional system information identifier B corresponding to the regional system information B, and the regional system information C corresponding to The area system information identifies C.

 303. The base station broadcasts corresponding area system information in each area of the cell according to the pre-configured area coverage information.

A cell may be divided into multiple areas according to different geographical locations, different environments, and different users, and then corresponding area system information is pre-configured for each area according to the division principle, so as to be in the area. Broadcast corresponding regional system information. For example, a cell is divided into a number of small regions, region 1 can correspond to the transmission environment of the bustling area of the block, and region 2 can correspond to the transmission of the residential area. surroundings. When the regional system information is configured for the transmission environment of the bustling section corresponding to the region l, the mobility of the user is large, and a conservative configuration may be adopted to ensure reliability; and the transmission environment of the residential area corresponding to the region 2 may be adopted. When configuring regional system information, due to the small user mobility, a more aggressive configuration can be used to achieve higher throughput.

 The specific manner of broadcasting the corresponding area system information in the area may be: broadcasting the area system information corresponding to the area through the transmission point distributed in the area according to the area division result in the pre-configured area coverage information. For example, a cell can be divided into two regions. According to the user characteristics of region 1 and region 2, regional system information a needs to be broadcast in region l and regional system information b is broadcast in region 2. The region l contains three transmission points: transmission point A, transmission point B, and transmission point C. Region2 contains two transmission points: transmission point D and transmission point E. The specific manner of broadcasting the area system information in the cell may be: broadcasting the area system information a through the transmission point A, the transmission point B, and the transmission point C, so that the UE in the region l can preferentially receive the area system information a, by transmitting The point D and the transmission point E broadcast the area system information b such that the UE in the region 2 can preferentially receive the area system information b.

 It should be noted that, in this embodiment, the area division is performed by using only the characteristics of the foregoing enumerated areas. The area division method includes but is not limited to the foregoing method, and may also be classified according to the geographical location of the UE detected by the GP S. Area and more. Other methods of area division are not described in detail in the embodiments of the present invention, but other methods of area division can also be applied to the embodiments of the present invention.

 Further, the specific implementation method for the UE to receive the area system information broadcasted in the area according to the global system information may include the following steps 304, 305, and 306:

The UE uses the area system information identifier to detect a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (E-PDCCH). The area system information identifier includes: a predefined Regional Information Radio-Network Temporary Identity (RI-RNTI). The pre-defined RI-RNTI may be a plurality of RI-RNTIs defined in an existing Radio-Network Temporary Identity (RNTI), which are respectively used as area system information identifiers corresponding to each area system information. .

 It should be noted that, since the cell base station adds the system information to the corresponding channel, a 16-bit Cyclic Redundancy Check (CRC) check bit is added to the system information, and The CRC check bits are scrambled using different RI-RNTIs to facilitate reliable transmission of the system information. Therefore, the UE may detect the PDCCH or the E-PDCCH by using the RI-RNTI that has been acquired from the base station side, that is, perform descrambling verification on the CRC check bit, so as to perform the slave step described in step 305. Obtaining corresponding downlink control information (Downlink Control Information, DCI) in the PDCCH or the E-PDCCH

 In a scenario of the embodiment of the present invention, the UE attempts to use the PDCCH-checked bits in the PDCCH or the E-PDCCH by using all the RI-RNTIs included in the received global system information. De-scrambling check. The cell base station performs scrambling on the CRC check bits by using different RI-RNTIs, so the UE performs descrambling check on the CRC check bits by using the corresponding RI-RNTI, so as to descramble the school. The test succeeded in getting the correct data. And the UE performs an attempted descrambling check on the PDCCH or the scrambled CRC check bit in the E-PDCCH correspondingly by using all the RI-RNTIs, and theoretically, the multi-group of the CRC can be successfully descrambled and verified. Check Digit. The UE may perform obtaining the corresponding DCI and subsequent acquisition area system information from the PDCCH or the E-PDCCH by using the CRC check bit that is successfully verified first.

In another application scenario of the embodiment of the present invention, in order to simplify the descrambling check process of the UE, an area system information identifier may also be selected according to the location information of the UE and the coverage area information. In this application scenario, the configuration information may also be To include: Coverage area information for each regional system information. The coverage area information of each area system information may be a geographical area range that each area system information can cover. The specific implementation manner of selecting a regional system information identifier according to the location information and the coverage area information of the UE may be: acquiring a location information by using a global positioning system (GPS) positioning; comparing the obtained location The information and the coverage area information of each area system information determine whether the location of the UE is included in the geographic area covered by the system information of the area or determine which geographic area of the area covered by the system information is closest to the area; The regional system information identifier corresponding to the determined regional system information is selected.

 It should be noted that, in the foregoing application scenario, step 304 may be replaced by detecting the PDCCH or the E-PDCCH by using the selected regional system information identifier. Wherein, since the UE performs descrambling verification on the CRC check bit by using a selected area system information identifier, only a set of CRC check bits can be successfully descrambled, and the school horse is successfully used. The CRC calibrating all-bit execution acquires the corresponding DCI and subsequent acquisition area system information from the PDCCH or the E-PDCCH.

 305. The UE acquires corresponding downlink control information DCI from the PDCCH or the E-PDCCH.

 Step 304: Detecting the PDCCH or the E-PDCCH, performing descrambling verification on the PDCCH or the scrambled CRC check bit in the E-PDCCH, and if the descrambling verification is successful, the method may obtain The content of the channel data corresponding to the CRC in which the descrambling check succeeds, that is, the UE acquires the corresponding DCI from the PDCCH or the E-PDCCH. The DCI includes resource allocation and other control information of one or more UEs, and the UE may obtain corresponding area system information from the PDSCH according to the DCI.

 306. The UE demodulates the area system information from the PDSCH according to the DCI.

The UE allocates resource allocation and other control information on one or more UEs included in the DCI, indicating a required regional system of the UE in the PDSCH. Resource location and demodulation method of information. For example, a demodulation reference signal can be applied

(Demodulation Reference Signal, DM-RS) may demodulate the area system information indicated by the DCI from the PDSCH.

 In another application scenario of the embodiment of the present invention, the base station side may not send the area system information identifier, and the UE may calculate the area system information identifier corresponding to each area system information according to the pre-configured identifier calculation rule. Referring to FIG. 4, before step 304, the method in this embodiment may further include the following step 307:

 307. The UE calculates the area system information identifier according to the pre-configured identifier calculation rule.

 The configuration information includes: a number of items of regional system information in the cell and a composition of each area system information. The area system information identifier is not included in the configuration information. Therefore, the UE needs to calculate the area system information identifier according to the pre-configured identifier calculation rule. For example, the specific method for calculating the identifier of the area system information may be: the UE calculates the area system information corresponding to the system information of each area according to the pre-configured identifier calculation rule, using the ID of the cell where the UE is located and the composition of each area system information. Logo.

 The ID of the cell may be demodulated by the UE from a synchronization channel periodically broadcast by the base station. Since the UE in the cell may change, for example, a new UE may enter the cell, and the base station does not determine the time when the UE joins the cell, so the synchronization channel is periodically broadcasted in the cell, so that the UE The synchronization channel can be received and the ID of the cell where the UE is located can be demodulated from the synchronization channel, where the UE can demodulate the ID of the cell where the UE is located after receiving the synchronization channel. And store the ID information for backup.

 It should be noted that the specific description of the method steps in the system information transmission method provided by the embodiment of the present invention may be referred to the corresponding content in the first embodiment or the second embodiment.

A system information transmission method provided by an embodiment of the present invention, broadcasts in a cell The system information, where the global system information includes the configuration information of the area system information in the cell, and then broadcasts the corresponding area system information in the area according to the pre-configured area coverage information, so that the user equipment UE is according to the global system. The information receives the regional system information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network.

 Example 4

 The embodiment of the present invention provides a user equipment UE, as shown in FIG. 5, including: a receiving unit 4 1 and an obtaining unit 42.

 The receiving unit 4 1 is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of area system information of each area in the cell.

 The obtaining unit 42 is configured to acquire, according to configuration information of the area system information received by the receiving unit 41, area system information broadcast by the base station in the area.

 Further, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.

 Further, as shown in FIG. 6 ( a ), in an application scenario of the embodiment, the acquiring unit may include: a first detecting module 42 1 , a first acquiring module 422, and a first demodulating module. 423.

 The first detecting module 42 1 is configured to detect the physical downlink control channel PDCCH or the enhanced physical downlink control channel E-PDCCH by using the area system information identifier.

 The first obtaining module 422 is configured to obtain corresponding downlink control information DCI from the PDCCH or the E-PDCCH after the first detecting module 42 1 detects the success.

The first demodulation module 423 is configured to demodulate the area system information from the PD SCH according to the DCI acquired by the first acquiring module. Further, as shown in FIG. 6 (b), in another application scenario of the embodiment, the configuration information further includes: coverage area information of each area system information. In this application scenario, the obtaining unit 42 may include: a selecting module 424, a second detecting module 425, a second obtaining module 426, and a second demodulating module 427.

 The selecting module 424 is configured to select an area system information identifier according to the location information of the UE and the coverage area information.

 The second detecting module 425 is configured to detect the PDCCH or the E-PDCCH by using the selected area system information identifier of the selecting module 424.

 The second obtaining module 426 is configured to obtain a corresponding DCI from the PDCCH or the E-PDCCH after the second detecting module 425 detects the success.

 The second demodulation module 427 is configured to demodulate the area system information from the PDSCH according to the DCI acquired by the second obtaining module 426.

 Further, in another application scenario of the embodiment, the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.

 As shown in FIG. 6(c), in the application scenario, the UE may further include: a calculating unit 43.

 The calculating unit 43 is configured to calculate the area system information identifier according to the pre-configured identifier calculation rule before the acquiring unit 42 acquires the area system information broadcasted by the base station in the area according to the configuration information of the area system information.

 The acquiring unit 42 is further configured to detect a PDCCH or an E-PDCCH according to the area system information identifier calculated by the calculating unit 43; after the detection succeeds, acquire a corresponding DCI from the PDCCH or the E-PDCCH; The area system information is demodulated from the PDSCH according to the DCI.

It should be noted that the specific description of some functional modules in the UE provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment. The UE provided by the embodiment of the present invention receives the global system information broadcasted by the base station in the cell, and then receives the regional system information broadcasted in the area according to the configuration information of the area system information in the cell included in the global system information. Compared with the configuration information that the base station broadcasts in the prior art and then receives the configuration information sent by the base station in the signaling manner, the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced. The downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.

 Example 5

 The embodiment of the present invention provides a base station, as shown in FIG. 7, including: a broadcasting unit 5 1 and a storage unit 52.

 The storage unit 52 is configured to store global system information and regional system information. The broadcast unit 5 1 is configured to broadcast the global system information stored in the storage unit 52 in the cell, where the global system information includes configuration information of the area system information in the cell.

 The broadcast unit 5 1 is further configured to broadcast the area system information corresponding to the area stored in the storage unit 52 in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE The global system information receives the regional system information.

 Further, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.

 Further, in an application scenario of the embodiment of the present invention, the configuration information further includes: coverage area information of each area system information.

 Further, in another application scenario of the embodiment of the present invention, the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.

It should be noted that some functional modules in the base station provided by the embodiments of the present invention are provided. For the description of the body, reference may be made to the corresponding content in Embodiment 1-4, and this embodiment will not be described in detail herein.

 A base station according to an embodiment of the present invention broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then broadcasts corresponding information in the area according to pre-configured area coverage information. The area system information is such that the user equipment UE receives the area system information according to the global system information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network.

 Example 6

 The embodiment of the present invention provides a UE, as shown in FIG. 8, including: a receiver 61 and a processor 62.

 The receiver 61 is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of area system information of each area in the cell.

 The processor 62 is configured to acquire, according to configuration information of the area system information received by the receiver 61, area system information broadcast by the base station in the area.

 Further, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.

 Further, in an application scenario of the embodiment, the processor 62 is further configured to detect, by using the area system information identifier, a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH; Obtaining corresponding downlink control information DCI in the PDCCH or the E-PDCCH; demodulating the area system information from the PDSCH according to the acquired DCI.

Further, in another application scenario of this embodiment, the configuration information is The information also includes: coverage area information of each regional system information.

 The processor 62 is further configured to: select an area system information identifier according to the location information of the UE and the coverage area information; detect a PDCCH or an E-PDCCH by using the selected area system information identifier; from the PDCCH or Obtaining a corresponding DCI in the E-PDCCH; and demodulating the area system information from the PDSCH according to the obtained DCI.

 Further, in another application scenario of the embodiment, the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.

 In this application scenario, the processor 62 is further configured to: before the receiver 61 acquires the area system information broadcast by the base station in the area according to the configuration information of the area system information, according to the pre-configured identifier. Calculate the rules and calculate the regional system information identifier.

 It should be noted that the specific description of some of the functional modules in the base station provided by the embodiment of the present invention may be referred to the corresponding content in the embodiment 1-5, which is not described in detail in this embodiment.

 A UE according to an embodiment of the present invention receives global system information broadcasted by a base station in a cell, and then receives area system information broadcasted in the area according to configuration information of area system information in the cell included in the global system information. Compared with the configuration information that the base station broadcasts in the prior art and then receives the configuration information sent by the base station in the signaling manner, the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced. The downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.

 Example 7

 The embodiment of the present invention provides a base station, as shown in FIG. 9, including: a transmitter 71 and a memory 72.

The memory 72 is configured to store global system information and regional system information. a transmitter 71, configured to broadcast global system information stored in the memory 72 in a cell, where the global system information includes configuration information of area system information in the cell; according to pre-configured area coverage information, in the area The area system information corresponding to the area stored in the memory 72 is broadcasted such that the user equipment UE receives the area system information according to the global system information.

 Further, the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.

 Further, in an application scenario of the embodiment of the present invention, the configuration information may further include: coverage area information of each area system information.

 Further, in another application scenario of the embodiment of the present invention, the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.

 It should be noted that the specific description of some of the functional modules in the base station provided by the embodiment of the present invention may be referred to the corresponding content in the embodiment 1 -6, and details are not described herein again in this embodiment.

 A base station according to an embodiment of the present invention broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then broadcasts corresponding information in the area according to pre-configured area coverage information. The area system information is such that the user equipment UE receives the area system information according to the configuration information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network.

 Example 8

An embodiment of the present invention provides a system information transmission system, as shown in FIG. 10, including: a user equipment UE81 and a base station 82. The UE 81 is configured to receive global system information that is broadcast by the base station 82 in the cell, where the global system information includes configuration information of the area system information in the cell, and the regional system broadcasted in the area according to the global system information. information.

 The base station 82 is configured to broadcast global system information in a cell, where the global system information includes configuration information of area system information in the cell, and broadcasts a corresponding area system in the area according to pre-configured area coverage information. Information, such that the UE 81 receives the second system according to the global system information

 Further, the foregoing UE 81 and the base station 82 can perform system information transmission according to the methods described in all the foregoing embodiments, and details are not described herein again.

 A system information transmission system according to an embodiment of the present invention broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then according to pre-configured area coverage information, in the area The corresponding area system information is broadcasted such that the user equipment UE receives the area system information according to the configuration information. Compared with the prior art, only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling. The corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves. The flexibility of system information configuration has optimized the performance of the entire network.

 Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. A hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any skilled person skilled in the art may disclose the technology disclosed in the present invention. Variations or substitutions that are conceivable within the scope of the invention are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be protected by the scope of the claims

Claims

claims 1. A system information transmission method, characterized by including: Receive global system information broadcast by the base station in the cell, where the global system information includes configuration information of regional system information for each region in the cell; Obtain the regional system information broadcast by the base station within the area according to the configuration information of the regional system information. 2. The system information transmission method according to claim 1, characterized in that, The configuration information includes: the number of items of regional system information in the community, the composition of each item of regional system information, and the regional system information identifier corresponding to each item of regional system information. 3. The system information transmission method according to claim 1, wherein the configuration information includes: the number of items of regional system information in the cell and the composition of each item of regional system information; Before the configuration information of the regional system information obtains the regional system information broadcast by the base station within the area, the method includes: According to the preconfigured identification calculation rules, the regional system information identification is calculated. 4. The system information transmission method according to claim 2 or 3, characterized in that: obtaining the regional system information broadcast by the base station in the area according to the configuration information of the regional system information includes: Use the regional system information identifier to detect the physical downlink control channel PDCCH or the enhanced physical downlink control channel E-PDCCH; Obtain the corresponding downlink control information DCI from the PDCCH or the E-PDCCH; demodulate the regional system information from the physical downlink shared channel PDSCH according to the DCI. 5. The system information transmission method according to claim 2 or 3, characterized in that the configuration information further includes: coverage area information for each item of regional system information; The obtaining the regional system information broadcast by the base station in the area according to the configuration information of the regional system information includes: Based on the location information of the user equipment UE and the coverage area information, select an area system System information identification; Detect PDCCH or E-PDCCH using the selected regional system information identifier; Obtain the corresponding DCI from the PDCCH or the E-PDCCH; The regional system information is demodulated from the PDSCH according to the DCI. 6. The system information transmission method according to claim 2 or 3, characterized in that the carrying method of the configuration information includes: Dedicated data fields carried in existing global system information; or/and, carried in dedicated global system information. 7. The system information transmission method according to claim 2, characterized in that the regional system information identifier includes: a predefined regional system information wireless network temporary identifier RI-RNTL 8. A system information transmission method, characterized by including: Broadcast global system information in the cell, and the global system information includes configuration information of regional system information in the cell; According to the preconfigured area coverage information, the corresponding area system information is broadcast in each area of the cell, so that the user equipment UE receives the area system information according to the configuration information. 9. The system information transmission method according to claim 8, characterized in that the configuration information includes: the number of items of regional system information in the community, the composition of each item of regional system information, and the corresponding items of each item of regional system information. regional system information identification; Alternatively, the configuration information includes: the number of items of regional system information in the cell and the composition of each item of regional system information. 10. The system information transmission method according to claim 9, characterized in that the carrying method of the configuration information includes: Dedicated data fields carried in existing global system information; or/and, carried in dedicated global system information. 11. The system information transmission method according to claim 9, characterized in that, The configuration information also includes: coverage area information for each item of regional system information. 12. A user equipment UE, characterized by: including: A receiving unit configured to receive global system information broadcast by the base station in the cell, where the global system information includes configuration information of regional system information for each region in the cell; An obtaining unit, configured to obtain the regional system information broadcast by the base station within the area according to the configuration information of the regional system information received by the receiving unit. 13. The UE according to claim 12, characterized in that, The configuration information includes: the number of items of regional system information in the community, the composition of each item of regional system information, and the regional system information identifier corresponding to each item of regional system information. 14. The UE according to claim 12, wherein the configuration information includes: the number of items of regional system information in the cell and the composition of each item of regional system information; The UE also includes: The calculation unit is configured to calculate the regional system information identification according to the preconfigured identification calculation rules before the obtaining unit obtains the regional system information broadcast by the base station in the area according to the configuration information of the regional system information. 15. The UE according to claim 13 or 14, characterized in that the obtaining unit includes: A first detection module, configured to use the regional system information identifier to detect the physical downlink control channel PDCCH or the enhanced physical downlink control channel E-PDCCH; A first acquisition module, configured to acquire the corresponding downlink control information DCI from the PDCCH or the E-PDCCH after the first detection module detects successfully; The first demodulation module is configured to demodulate the regional system information from the physical downlink shared channel PD SCH according to the DCI obtained by the first acquisition module. 16. The UE according to claim 13 or 14, characterized in that, The configuration information also includes: coverage area information for each item of regional system information; The acquisition unit includes: A selection module, configured to select based on the location information of the UE and the coverage area information. A regional system information identifier; The second detection module is used to detect PDCCH or E-PDCCH using the selected regional system information identifier; A second acquisition module, configured to acquire the corresponding DCI from the PDCCH or the E-PDCCH after the second detection module detects successfully; The second demodulation module is configured to demodulate the regional system information from the PDSCH according to the DCI obtained by the second acquisition module. 17. A base station, characterized by including: Storage unit, used to store global system information and regional system information; A broadcast unit, configured to broadcast the global system information stored in the storage unit within the cell, where the global system information includes configuration information of regional system information in the cell; The broadcast unit is also configured to broadcast the regional system information corresponding to the area stored in the storage unit in each area of the cell according to the preconfigured area coverage information, so that the user equipment UE can adjust the system information according to the global system. Information receives the zone system information. 18. The base station according to claim 17, characterized in that, The configuration information includes: the number of items of regional system information in the community, the composition of each item of regional system information, and the regional system information identification corresponding to each item of regional system information; Alternatively, the configuration information includes: the number of items of regional system information in the cell and the composition of each item of regional system information. 19. The base station according to claim 18, characterized in that, The configuration information also includes: coverage area information for each item of regional system information. 20. A system information transmission system, characterized by including: The UE as described in any one of claims 12-16; and the base station as described in any one of claims 17-19.