CN109217985B

CN109217985B - Information indication method and device

Info

Publication number: CN109217985B
Application number: CN201811197054.6A
Authority: CN
Inventors: 苟伟; 戴博; 鲁照华; 韩晓钢
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2021-07-02
Anticipated expiration: 2033-01-31
Also published as: CN109217985A; CN103973399B; WO2014117642A1; CN103973399A

Abstract

The embodiment of the invention discloses an information indication method and a device, comprising the following steps: a network side device sends a signaling structure to a User Equipment (UE); the signaling structure is pre-agreed by the network side equipment and the UE and is used for informing the UE that the reference signals in at least two carriers serving the UE meet the quasi co-sited characteristic. The network side equipment indicates the reference signals of the cells which meet the quasi co-sited characteristic for the UE, so that the UE can execute the quasi co-sited operation on other cells according to the configuration information acquired from any one of the cells which meet the quasi co-sited characteristic, the acquisition process of the configuration information of other cells is omitted, and the resource overhead is reduced.

Description

Information indication method and device

The scheme is a divisional application of patent application 201310038445.4, the application date of the original application is 31/1/2013, and the application number is 201310038445.4.

Technical Field

The embodiment of the invention relates to the field of mobile wireless communication, in particular to an information indication method and device.

Background

With the development of the mobile communication industry and the increasing demand for mobile data services, the demand for mobile communication speed and Quality of service (Qos) is higher, and therefore, before 3rd Generation (3G) is not commercialized in a large scale, research and development work on a next Generation mobile communication system has been started, wherein the Long Term Evolution (LTE) Project initiated by the third Generation Partnership Project (3 GPP) is typical, and the highest spectrum bandwidth provided by the LTE system is 20MHz (megahertz). With the further evolution of the network, as an LTE evolution system, LTE-a (evolution LTE) can provide a spectrum bandwidth up to 100MHz, support more flexible and higher-quality communication, and meanwhile, the LTE-a system has good backward compatibility. In an LTE-a system, there are multiple Component Carriers (CCs), one LTE terminal can only operate on a certain CC that is backward compatible, and an LTE-a terminal with a strong capability can simultaneously transmit on multiple CCs. Namely, the terminal of the LTE-A can transmit and receive data in a plurality of component carriers at the same time, thereby achieving the purpose of improving the bandwidth. This technique is referred to as a multi-carrier aggregation technique.

In the research of the LTE R11 phase, on the basis of the multi-carrier aggregation technology, new requirements are further provided for spectrum resource utilization, network energy saving, and inter-cell interference suppression. To achieve this, a New Carrier Type (NCT for short, commonly referred to as New Carrier, specifically refer to the published discussion of LTE R11) is proposed. By means of carrier aggregation technology, the new carrier has a distinct characteristic that backward compatibility is not required to be considered in design, and more new technologies can be applied to the new carrier. For example, currently, a definition of a new carrier in LTE R11 is that at least one compatible carrier needs to be paired with the compatible carrier (also referred to as carrier aggregation operation with one compatible carrier), and a Cell-specific Reference signal (CRS) of LTE R8 is not configured in the new carrier, so as to avoid a serious CRS interference of a neighboring Cell at a Cell edge, especially a CRS interference between a macro Cell and a micro Cell in a HETerogeneous NETwork (HetNet) scenario. In the discussion of LTE R11, in order to further improve the usage scenario of the new carrier, a new carrier operating independently is also proposed, and at this time, the new carrier has the capability of independently accessing the UE and operating independently. Of course, it may also be paired with other carriers or operate in an aggregate manner.

Currently the new carrier is being standardized as a new carrier type and some common wisdom among new carriers is as follows:

in the new carrier, a single-port CRS with a period of 5 milliseconds (5ms) is used to perform synchronization tracking (referred to as 5ms CRS, or as synchronization tracking CRS), which is obviously different from CRS in the existing system and the number of supported ports is different.

In new carriers, in particular in synchronized new carriers, it is currently under discussion whether to configure the transmit PSS/SSS and 5msCRS, if the result of the discussion is that the PSS/SSS and 5msCRS are not configured.

A Physical Downlink Control Channel (PDCCH) field is not allocated in the new carrier, and the original PDCCH field may be used to transmit the PDSCH. PHICH and PCFICH are not configured in the new carrier.

From the above conclusion of new carriers, if a new carrier type is used in a COMP (Coordinated Multi-Point) scenario, there are the following problems to be solved: in COMP, a problem that multiple Transmission nodes (TPs) serve one UE is proposed, and quasi-co-location (QCL) signaling is introduced to solve the problem that multiple TPs are different in time and frequency. QCL signaling is to solve the problem that the synchronization timing of Rel 10 cannot be applied in the COMP scenario. When different TPs are coordinated by the same UE, it is considered that large scale properties (large scale properties) corresponding to channels from different TPs (including timing error, timing stretch, frequency shift, frequency spread, etc.) are different, and it is considered that large scale properties measured by CRS corresponding to serving cells cannot be used in some COMP transmission methods (for example, DPS, DPB, JT) instead of COMP transmission (transmission TPs are not necessarily serving cells), so for this case, it is necessary to give DMRS signals corresponding to which TPs have the same large scale properties as DMRS for current PDSCH transmission, that is, from the UE side, which CSI-RSs (corresponding to TP nodes) correspond to the same channel as DMRS for current transmission, and then the notification is given to the UE through signaling.

In the COMP scenario, if a TP uses a carrier of a conventional carrier type (referred to as a compatible carrier), the above problem can be solved after introducing QCL signaling, but through analysis, it is considered that when a new carrier type is used in the COMP scenario, the following problem cannot be solved: and the UE needs to acquire the configuration information of all the cells in sequence, so that the resource overhead is overlarge.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present invention is to provide an information indicating method and apparatus, which solve the problem of repeatedly acquiring cell configuration information in the prior art.

In order to solve the above technical problem, an embodiment of the present invention provides an information indicating method, including:

the network side equipment is used for sending a signaling structure to the UE; the signaling structure is pre-agreed by the network side equipment and the UE and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic;

the signaling structure comprises at least one of the following parameters: the base station comprises CSI-RS configuration information for RSRP measurement, CSI-RS configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, DMRS configuration information for synchronous tracking, carrier type information, identification information of quasi co-sited cells and MBSFN subframe configuration information.

The embodiment of the invention also provides an information indication method, which comprises the following steps:

UE receives a signaling structure sent by network side equipment; the signaling structure is pre-agreed by the UE and the network side equipment and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic; the signaling structure comprises at least one of the following parameters: the base station comprises CSI-RS configuration information for RSRP measurement, CSI-RS configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, DMRS configuration information for synchronous tracking, carrier type information, identification information of quasi co-sited cells and MBSFN subframe configuration information.

And the UE performs quasi co-station operation according to the signaling structure.

An embodiment of the present invention further provides a network side device, including:

a sending module, configured to send a signaling structure to a UE; the signaling structure is pre-agreed by the network side equipment and the UE and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic;

An embodiment of the present invention further provides a UE, including:

the receiving module is used for receiving a signaling structure sent by the network side equipment; the signaling structure is pre-agreed by the UE and the network side equipment and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic; the signaling structure comprises at least one of the following parameters: the base station comprises CSI-RS configuration information for RSRP measurement, CSI-RS configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, DMRS configuration information for synchronous tracking, carrier type information, identification information of quasi co-sited cells and MBSFN subframe configuration information.

And the processing module is used for carrying out quasi co-station operation according to the signaling structure.

According to the information indicating method and device provided by the embodiment of the invention, the network side equipment indicates that the reference signals of different cells meet the quasi co-sited characteristic for the UE, so that the UE can execute the quasi co-sited operation on other cells according to the configuration information acquisition result of any one cell in the cells meeting the quasi co-sited characteristic, the acquisition process of the configuration information of other cells is omitted, and the resource overhead is reduced.

Drawings

Fig. 1 is a schematic diagram of an information indication method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of another information indication method provided by the embodiment of the present invention;

fig. 3 is a schematic diagram of a method for configuring carrier configuration information according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

An embodiment of the present invention provides an information indication method, as shown in fig. 1, the method including:

the network side equipment sends a signaling structure to User Equipment (UE); the signaling structure is pre-agreed by the network side equipment and the UE and is used for informing the UE that the reference signals in at least two carriers serving the UE meet the quasi co-sited characteristic.

Optionally, the network side device sends a signaling structure to the UE, including:

and the network side equipment sends a signaling structure to the UE through a dedicated Radio Resource Control (RRC) message.

Or,

when a new carrier type exists in a cooperative node configured for the UE by the network side equipment, or a new carrier type exists in a carrier used by the UE or a cell, the network side equipment sends a signaling structure to the UE through the carrier paired with the new carrier.

Optionally, the signaling structure further includes: parameters for identifying a carrier type or channel in a carrier.

Optionally, the setting operation includes at least one of the following types: synchronization tracking, CSI measurement, cell handover, and cell reselection.

Optionally, if the UE receives a quasi co-sited characteristic between a cell or a carrier of the signaling structure and another cell or a carrier, the identification information of the quasi co-sited cell includes: identification information of another cell or carrier satisfying the quasi co-sited characteristic except the cell of the signaling structure received by the UE.

An embodiment of the present invention provides an information indication method, as shown in fig. 2, the method includes:

UE receives a signaling structure sent by network side equipment; the signaling structure is pre-agreed by the UE and the network side equipment and is used for informing that the reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic.

Optionally, the UE receiving a signaling structure sent by the network side device includes:

and the UE receives a signaling structure sent by the network side equipment through the RRC message.

Or,

when a new carrier type exists in a cooperative node configured for the UE by the network side device, or a new carrier type exists in a carrier used by the UE or a cell, the UE receives a signaling structure sent by the network side device through a carrier paired with the new carrier.

By analyzing the problem that when the NCT is considered to be used in COMP, the existing QCL signaling cannot complete the indication of the channel and signaling configuration information in the NCT, for example, cannot indicate whether CRS is configured in the NCT, cannot indicate whether 5ms CRS is configured in the NCT for synchronization tracking, cannot indicate whether channel configuration such as PDCCH, PHICH, PCFICH, etc. exists in the NCT, and thus when the coordinated UEs receive data in the NCT, it cannot be determined whether the information in the REs should be demodulated as own data or a common reference signal, and thus the demodulation performance is degraded.

To solve this problem, an embodiment of the present invention provides a signaling structure, where one of the main purposes and functions of the signaling structure is to, when a base station uses multiple carriers for cooperation or aggregation of a UE or multiple TPs for cooperation or aggregation, and when there are different types of carriers or channels of carriers in the multiple carriers or multiple TPs and signaling configurations are different, notify the UE of a carrier or a reference signal in the carrier that satisfies quasi co-sited, for example, a quasi co-sited that satisfies synchronization requirements (including fine synchronization or synchronization tracking requirements), a quasi co-sited that satisfies CSI measurement, and the like, using the signaling structure. The signaling structure includes signaling identifying carrier type or channel in carrier, signaling configuration signaling. Wherein, it is further required to add a capability of satisfying quasi co-siting in the signaling structure, and the capability specifically includes: synchronization capability (shared synchronization accuracy), CSI measurement capability (shared CSI measurement). For example, a CSI measurement result shared among multiple carriers is described, or a CSI measurement result of a certain carrier may be replaced with a certain carrier.

As shown in fig. 3, the method for generating carrier configuration information in the embodiment of the present invention includes: the method comprises the following steps that network side equipment and User Equipment (UE) agree on a signaling structure of carrier configuration information and send the signaling structure to the UE; the signaling structure comprises at least one of the following parameters: identification information of a quasi co-sited cell, the number of Cell Reference Signal (CRS) ports or referred to as CRS configuration information, Multimedia Broadcast Single Frequency Network (MBSFN) subframe configuration information, carrier type information, CSI-RS configuration information for Reference Signal Received Power (RSRP) measurement, channel state information reference signal (CSI-RS) configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, and demodulation reference signal (DMRS) configuration information for synchronous tracking. When multiple carrier types exist in a node for UE cooperation or a carrier or a cell used by the UE, the signaling structure comprises carrier type information.

The above signaling structure may be used for COMP or carrier aggregation.

If the cell in which the UE is located participates in cooperation or aggregation, the signaling structure in the cell may omit configuration, for example, if the cell 1 is the cell in which the UE is located, that is, the cell in operation, the configuration information of the cell 1 may be omitted.

The network side equipment configures the signaling structure in cell switching signaling, cell reselection signaling or measurement signaling and sends carrier configuration information configured by the signaling structure to the UE. Specifically, the carrier configuration information is included in an existing RRC message as an information unit and sent to the UE, or a new RRC message is introduced to send the carrier configuration information to the UE. The network side device may send the carrier configuration information to the UE through a dedicated Radio Resource Control (RRC) message, or send the carrier configuration information to the UE through a carrier paired with a new carrier when the network side configures the UE for a new carrier type in a carrier or a cell used by a cooperating node or the UE. The signaling structure can also be used in signaling for cell handover, cell reselection and measurement, and when the UE performs cell handover, the base station configures the signaling for the UE, so that the UE performs measurement on a target cell. The signaling structure may also be transmitted in the cell as the content of a system broadcast message, e.g. optionally in SIB3 or SIB4 or SIB 5.

The function, use and value of the parameters in the signaling structure are described in detail below.

The signaling structure is used for notifying the UE of a carrier or a reference signal in the carrier that satisfies the quasi co-sited characteristic, wherein the signaling structure includes signaling identifying a carrier type or channel and/or signaling configuration signaling in the carrier, and the quasi co-sited includes: the quasi co-station characteristic means that the quasi co-station characteristic has the same effect or has a result that the quasi co-station characteristic meets a preset standard when setting operation is executed between carriers or between reference signals in the carriers, and the setting operation at least comprises one of the following steps: synchronous tracking, CSI measurement, cell switching and cell reselection.

The identification information of the quasi co-sited cell is used for identifying whether quasi co-siting is satisfied between a carrier or a cell or a transmission node serving the UE and another cell or a carrier or a transmission node. For example, the identified cells satisfy a quasi co-sited relationship so that the UE can perform synchronization tracking with each other using reference signals in the cells satisfying the co-sited relationship, e.g., cell 2 and cell 1 satisfy the co-sited relationship, at which time the UE can perform synchronization tracking using CSI-RS in cell 1 with the same effect as performing synchronization tracking using CRS in cell 2.

Describing identification information of the quasi co-sited cell using at least one of the following parameters: the cell physical Identification (ID), the index of the auxiliary cell (SCellIndex), the cell virtual ID, the cell physical ID, the carrier frequency point, the index of the serving cell (ServerCellIndex), the sequence index corresponding to the cell ID, and the configuration information of the reference signal in the cell. The configuration information of the reference signal in the cell may use the CSI-RS configuration information or the configuration label of the cell, because the CSI-RS may be implemented as different patterns configured for different cells, the CSI-RS configuration information of different cells is different.

The identification information of the quasi co-sited cell can simultaneously identify 2 or more than 2 cells or carriers or transmission nodes meeting the quasi co-sited condition. When the identification information of the quasi co-sited cell simultaneously identifies 2 or more than 2 cells or carriers or transmission nodes, the signaling structure must include the parameter.

The CRS port number or the CRS configuration information is used for identifying the CRS port number used in the cell or carrier or transmission node identified by the identification information of the quasi co-sited cell. By this parameter, the UE may determine a mapping pattern of the CRS in the cell or carrier or TP.

When the CRS port number or the CRS configuration information is {0, 1, 2, 4}, wherein the port numbers corresponding to 1, 2, 4 are 1, 2, 4; 0 indicates that no CRS is configured in the cell or carrier or indicates that 5ms CRS is configured in the carrier. The CRS configuration information includes a manner of implementing CRS configuration information by CRS port number, and also includes a case of directly describing CRS configuration in a carrier, for example, a value of CRS configuration information is {0, 1}, where 0 indicates that there is no CRS configuration in the carrier, and 1 indicates that 5ms CRS is configured in the carrier. Or, when the CRS port number or CRS configuration information is {0, 1}, where 0 indicates no 5msCRS and 1 indicates 5 msCRS.

The MBSFN subframe configuration information is used for describing the MBSFN subframe configuration condition in the cell or carrier or transmission node identified by the identification information meeting the quasi co-sited cell. The UE can obtain the MBSFN subframe configuration information in the corresponding cell or carrier or TP through the parameter. The MBSFN subframe configuration information is expressed using an MBSFN subframe configuration (MBSFN-subframe configuration) information element.

The carrier type information refers to a carrier type used in a cell, a carrier or a transmission node identified by the identification information of the quasi co-sited cell, and helps the UE to know the channel and/or signaling configuration condition in the cell, the carrier or the transmission node. So that the UE can determine the data and common signaling of the UE in the resources of the carrier. Meanwhile, the carrier type information is also used for describing a cell or a carrier set in a cell meeting the quasi co-sited condition or a carrier type used in a TP (transmission power control) and is also used for helping the UE to identify data and common signaling of the UE in carrier resources. Wherein the carrier type information includes the following types: compatible carrier type, new carrier type, synchronous new carrier type, asynchronous new carrier type, and independent operation new carrier type. The carrier type information describes configuration information of channels and/or signaling in a quasi co-sited cell or carrier, and helps UE to know the channel and/or signaling configuration condition in the cell or carrier.

The carrier type information includes the following types: compatible carrier type, new carrier type, synchronous new carrier type, asynchronous new carrier type, independent new carrier type.

The channel and/or signaling configuration case includes at least one of: whether primary and secondary synchronization signaling (PSS/SSS) is configured; time domain location of PSS/SSS; whether CRS is configured or not; whether a 5ms CRS for synchronous tracking is configured; whether time domain positions of PBCH and ePBCH are configured; whether a PHICH is configured; whether a PCFICH is configured or not; whether a PDCCH is configured; whether ePBCH, ePHICH and ePDCCH are configured. If configured with ePHICH and ePDCCH, the terminal needs to inform the resources occupied by these channels to facilitate rate matching, and certainly, the terminal can also inform in the signaling whether to decode the system parameter information on the NCT to obtain the related content. The above configuration situations can be indirectly described by the appointed carrier type information, for example, it is specified that CRS is not configured, 5ms CRS is configured, PHICH is not configured, PCFICH is not configured, PDCCH is not configured in the new carrier type, at this time, for convenience of representation, the UE can be directly notified that the carrier type is the new carrier type, and the UE can know that channel and signaling configuration is performed according to the new carrier type in the carrier, otherwise, the configuration situation needs to be directly notified to the UE. The overview is that the channel and/or signaling mainly includes the configuration of various control channels and the configuration of various reference signals.

The CSI-RS configuration information for RSRP measurement is used for describing CSI-RS configuration for RSRP measurement in a cell or carrier or transmission node which meets quasi co-sited requirements, and the UE is assisted to determine CSI-RS for performing RSRP measurement. The configuration information may describe the CSI-RS resource manner, or describe the CSI-RS index (reference number, refers to multiple sets of CSI-RS, and is given a predetermined number). For example, cells satisfying quasi co-siting perform RSRP (or RRM) measurement with each other using only CSI-RS of a certain cell, and the measurement result is applied to another cell.

The CSI-RS configuration information for synchronous tracking is used for describing CSI-RS configuration for synchronous tracking in a cell or carrier or transmission node which meets the requirement of quasi co-station, and the UE is assisted to determine the CSI-RS for performing synchronous tracking. The configuration information may describe the CSI-RS resource manner, or describe the CSI-RS index (reference number, refers to multiple sets of CSI-RS, and is given a predetermined number).

The CSI-RS configuration information for CSI measurement is used for describing CSI-RS configuration for CSI measurement in a quasi co-sited cell or carrier or a transmission node, and helps the UE to determine the CSI-RS for performing the CSI measurement. The configuration information may describe the CSI-RS resource manner, or describe the CSI-RS index (reference number, refers to multiple sets of CSI-RS, and is given a predetermined number). For example, cells satisfying quasi co-siting perform CSI measurement with each other using only CSI-RS of a certain cell, and the measurement result is applied to another cell.

The CSI-RS configuration is specifically described using a CSI-RS configuration (CSI-RS-Config) information element, wherein the information element includes a parameter describing a bandwidth used by the CSI-RS. The parameters of the bandwidth include at least one of: the size of the bandwidth, the frequency domain position of the bandwidth, the subframe position, frequency hopping information and a guard band.

The reference signal configuration information for synchronization tracking is used for describing the reference signal configuration information for synchronization tracking in a quasi co-sited cell or carrier or a transmission node, and helps the UE to determine the configuration situation of the reference signal for synchronization tracking in the cell or carrier. The method specifically comprises the bandwidth, period and starting subframe information of a synchronous tracking reference signal, wherein the synchronous tracking reference signal comprises 5 msCRS. The reference signal configuration information for synchronous tracking comprises bandwidth, period and starting subframe information of a synchronous tracking reference signal, wherein the reference signal comprises CRS with 5 millisecond period.

The DMRS configuration information used for synchronous tracking is used for describing DMRS configuration information used for synchronous tracking in all or part of quasi co-sited cells or carriers or transmission nodes, and helps the UE to know relevant information of the DMRS so that the UE can demodulate by using the DMRS, wherein the DMRS configuration information comprises precoding information and occupied resource information of the DMRS.

The above-mentioned information has a plurality of reference signal information for synchronization tracking, and these information may coexist in a signaling of different cells or carriers or TPs, and only one of these information may be configured in the same cell or carrier or TP, and cannot coexist.

The above signaling structure may be used in a scenario where the base station selects a plurality of cells or carriers or TPs for the UE to perform COMP cooperation, and indicates those cells or carriers or TPs for the UE to satisfy a quasi co-sited relationship; or the base station indicates to the UE that the new carriers satisfy the coarse synchronization and fine synchronization relationships with those carriers. For example, when the base station configures a plurality of carriers for the UE to perform aggregation, the base station notifies the UE of the carriers configured for the UE through the signaling structure that the carriers satisfy a coarse synchronization relationship and a fine synchronization relationship, that is, after the UE can achieve fine synchronization with one of the carriers by using a reference signal of the carrier, the UE can achieve fine synchronization with another carrier in the configuration.

For the signaling, the signaling structure may be configured as an independent information element in an existing RRC message, for example, in an RRC reconfiguration message, or the signaling structure may be added to an existing CSI-RS-ConfigNZP information element.

And after the UE acquires the signaling structure, determining the carrier meeting the quasi co-station characteristic or the reference signal in the carrier according to the information in the signaling structure, and performing quasi co-station operation on the cell meeting the quasi co-station characteristic.

The network side equipment in the embodiment of the invention comprises a signaling structure negotiation module and a sending module.

The signaling structure negotiation module is used for appointing a signaling structure of carrier configuration information with User Equipment (UE) and sending the signaling structure to the UE; the signaling structure comprises at least one of the following parameters: identification information of a quasi co-sited cell, the number of Cell Reference Signal (CRS) ports or CRS configuration information, Multimedia Broadcast Single Frequency Network (MBSFN) subframe configuration information, carrier type information, CSI-RS configuration information for Reference Signal Received Power (RSRP) measurement, channel state information reference signal (CSI-RS) configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, demodulation reference signal (DMRS) configuration information for synchronous tracking; when multiple carrier types exist in a node for UE cooperation or a carrier or a cell used by the UE, the signaling structure comprises carrier type information;

and the sending module is used for sending the signaling structure to the UE. The signaling structure may be configured as an independent information element in an existing RRC message and sent to the UE, for example, in an RRC reconfiguration message, or the signaling structure may be added to an existing CSI-RS-ConfigNZP information element, or, when a new carrier type exists in a carrier or a cell used by a cooperating node or UE configured for the UE by the network side device, the carrier configuration information is sent to the UE through a carrier paired with the new carrier.

The meaning of each parameter in the signaling structure is the same as that described in the above method and is not described herein again.

The user equipment in the embodiment of the invention comprises a signaling structure negotiation module and a receiving module;

the signaling structure negotiation module is used for agreeing a signaling structure of carrier configuration information with network side equipment, and the signaling structure at least comprises one of the following parameters: identification information of a quasi co-sited cell, the number of Cell Reference Signal (CRS) ports or CRS configuration information, Multimedia Broadcast Single Frequency Network (MBSFN) subframe configuration information, carrier type information, CSI-RS configuration information for Reference Signal Received Power (RSRP) measurement, channel state information reference signal (CSI-RS) configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, demodulation reference signal (DMRS) configuration information for synchronous tracking; when multiple carrier types exist in a node for UE cooperation or a carrier or a cell used by the UE, the signaling structure comprises carrier type information.

The receiving module is used for receiving the signaling structure from the network side equipment. Specifically, the signaling structure is obtained from the received cell handover signaling, cell reselection signaling, or measurement signaling.

The user equipment further comprises a data processing module, which is used for determining the carrier wave or the reference signal in the carrier wave which meets the quasi co-sited characteristic according to the information in the signaling structure, and performing quasi co-sited operation on the cell which meets the quasi co-sited characteristic.

In the embodiment of the invention, a special solution is provided for the problems in the background art, and the solution is as follows: when the carrier wave or the cell or the TP configured for the UE by the base station in cooperation or aggregation operation has the carrier wave of the incompatible carrier wave type, the base station still maps and transmits the UE data in the incompatible carrier wave according to the channel and signaling configuration condition in the compatible carrier wave, and the UE receives and analyzes the data of the cell or the carrier wave or the TP configured for the UE according to the channel and signaling in the compatible carrier wave. In this way, the base station does not need to signal the UE, and the type information, the channel and the signaling configuration information of the carrier wave selected for the UE are also not needed. Obviously, if the carrier resources of the new carrier type are mapped with data according to the channel and signaling of the compatible carrier, there is obviously a waste of resources.

At this time, the carrier type parameter in the signaling structure is deleted, and the original signaling still needs to be sent, such as carrier or cell or TP configuration information or quasi co-sited information.

For example, there are no PCFICH, PHICH, PDCCH, etc. channels in the new carrier, and if the base station maps data according to the compatible carrier, the base station still does not map the UE data in the original PCFICH, PHICH, PDCCH, etc., which obviously wastes a certain amount of resources. As another example, the new carrier does not have CRS configuration of R8, only has CRS with or without CRS period of 5ms for synchronization tracking, and if mapping is still performed according to the case of R8 CRS in the compatible carrier, REs occupied by CRS are obviously wasted. But this approach simplifies the processing at the base station and UE sides.

The following is a detailed description of specific examples.

Detailed description of the preferred embodiment 1

When the cooperative node in COMP uses the new carrier type and the compatible carrier type to serve the UE together, further assuming that the new carrier type does not use CRS, PDCCH, PHICH, PCFICH, and continues to use PSS/SSS of PBCH, R8, the signaling structure sent by the base station for the UE includes:

identification information of the quasi co-sited cell, CRS port number, MBSFN subframe configuration information, carrier type information and reference signal configuration information for synchronous tracking. The specific signaling structure is as follows:

the signaling structure shows that the cell 1 and the cell 2 satisfy the quasi co-sited relation, wherein the cell respectively uses the cell physical ID and the CSI-RS index configured by the cell to describe the cell. The configuration in the cell 1 and the cell 2 comprises a CRS port, MBSFN subframe configuration, carrier type, synchronous tracking reference signal, synchronous tracking CSI-RS configuration, synchronous tracking DMRS configuration, CSI-RS configuration of RSRP measurement and CSI-RS configuration of CSI measurement. When a carrier compatible with the carrier type exists, CRS port parameters are optional, for a new carrier type, if no synchronous tracking reference signal configuration information exists, the configuration of the synchronous tracking reference information is represented by adopting the CRS port value of 0, and if the synchronous tracking reference signal configuration information exists, the CRS port can be not configured. If the MBSFN subframe exists in the cell of the quasi-co-station, the MBSFN subframe configuration information is optional. The 3 types of configuration information for synchronous tracking can be configured according to the specific used type in the carrier, namely the corresponding type can be configured, the carrier is not configured, and the corresponding parameters can be deleted. For the CSI-RS configuration parameters for RSRP measurement, if a carrier is designated to perform RSRP measurement using CSI-RS, the parameters are configured correspondingly, otherwise the parameters are not configured, because most of the existing R8 CRS and 5ms CRS can be used for RSRP measurement, and few of the existing R8 CRS and 5ms CRS are used for RSRP measurement, or under special regulations. The CSI-RS configuration parameters for CSI measurement are also configured according to specific scenarios, and are optional parameters. When there are multiple carriers of different carrier types for UE cooperation or aggregation, the carrier type parameter must be configured. The carrier type parameter is not configured and it may be default that the carrier is of a compatible carrier type.

If the UE works in the cell 1, the UE can know that the cell 1 and the cell 2 satisfy the fine synchronization relationship according to the signaling structure, and the UE knows that the cell 2 is the new carrier type through the carrier type information in the cell 2, so that when the UE receives the data in the cell 2, the UE can know the channel and signaling configuration conditions in the cell 2, and thus the UE can know the RE where the data in the cell 2 is located.

The signaling structure can be directly used when the base station configures the cooperative cells or carriers or the TP for the UE, and can also be directly used under the condition that the base station selects the synchronous carriers or the cells or the TP for the UE to carry out the aggregation operation.

Specific example 2

One schematic of the signaling structure of the embodiment of the present invention is formed by adding relevant information to the CSI-RS-ConfigNZP as follows:

the carrier type at this time is the one that identifies the cell or carrier or TP described by the parameter qcl-scrimblingidentity-r 11, and the cell or carrier or TP identified by the parameter scrimblingidentity-r 11 in the signaling structure is the compatible carrier type by default for the UE, so no carrier type is introduced. The signaling structure is suitable for the situation that new carriers which are not independently operated participate in cooperative or aggregated operation, at this time, a cell identified by the parameter qcl-scrimblingidentity-r 11 adopts a certain type of the new carriers which are not independently operated, a cell identified by the parameter scrimblingidentity-r 11 adopts a compatible carrier type by default, and when the UE finds that the cell identified by the parameter scrimblingidentity-r 11 does not have the parameter carrier type according to the signaling structure, the UE considers the compatible carrier type adopted by the cell.

Wherein, the value of CRS-PortsCount-R11 is increased by n0, which indicates that R8 CRS is not configured but 5msCRS is configured in the carrier identified by qcl-ScramblingIdentity-R11.

And introducing the carrier type parameters to obtain whether a new carrier or a compatible carrier is used in the cell meeting the QCL relationship, thereby indirectly obtaining the conditions of channel configuration, signaling configuration and mapping in the QCL cell and enabling the UE to receive data in the QCL cell to avoid the common channel and signaling.

Specific example 3

at this time, the cells in the signaling structure are respectively configured with carrier type parameters, the first carrier type parameter identifies the carrier type of the cell described by the parameter scrimblingidentity-r 11, and the second carrier type parameter identifies the carrier type of the cell described by the parameter qcl-scrimblingidentity-r 11.

If only carrier type signaling cannot help the UE to know the channel and signaling configuration information in the carrier, the carrier type parameter at this time may be replaced by a specific channel and signaling configuration parameter, for example, one possible alternative is: the carrier type parameter is replaced by the following channel and signaling configuration information: the PCFICH configuration information is used for describing whether the carrier is configured with the PCFICH or not; PHICH configuration information which describes whether a carrier is configured with a PHICH or not; PDCCH configuration information, which describes whether a carrier is configured with a PDCCH or not; PSS/SSS configuration information, which describes whether a carrier is configured with a PSS/SSS; CRS configuration information, which describes whether a CRS configured with R8 exists in a carrier; CRS configuration information of 5ms period, describing the configuration of 5ms CRS in the carrier (if configured, including subframe offset information, bandwidth); PBCH configuration information describing the configuration of PBCH in the carrier (including indication information of new PBCH if new PBCH is configured).

Specific example 4

The present embodiment differs from the above-described embodiments 1 to 3.

It is assumed that a base station selects carriers or cells or TPs (carriers are taken as an example below) for a UE in cooperation or aggregation operation, and the base station knows that there are carriers of new carrier types in the carriers, and the carriers of the new carrier types are not configured with PDCCH, PCFICH, PHICH and R8 CRS and are configured with CRS and PSS/SSS of 5ms period. And the compatible carrier is configured with PDCCH, PCFICH, PHICH, R8 CRS and PSS/SSS.

The base station still maps the data of the UE in the carrier of the new carrier type in a carrier-compatible manner, for example, the resources occupied by PDCCH, PCFICH, PHICH, R8 CRS and PSS/SSS need to be avoided, and the data of the UE cannot be sent on the resources occupied by these channels and signaling.

At this time, the base station does not inform the UE, the UE still receives data in the carrier according to the type of the compatible carrier, and the resources occupied by the channel and the signaling are avoided.

Specific example 5

The signaling structure of the embodiments of the present invention may also be configured in the following manner. The parameter dereferencing in the existing PDSCH-RE-mapping qcl-Config-r11 information element needs to be performed according to the meaning and dereferencing of the parameter proposed in the embodiment of the present invention, which is specifically as follows:

CRS port number or CRS configuration information, wherein one of the CRS port number and the CRS configuration information exists according to different scenes, CRS port number description can be selected for compatible carriers or NCTs, but the CRS port selection is more efficient at the moment, and the value range is {0, 1, 2 and 4 }. For the NCT carrier type, CRS configuration information may be used, and the range is {0, 1}, where 0 indicates no CRS configuration and 1 indicates CRS as 5 msCRS.

The pdsch-Start-r11 parameter has a value range of {1, 2, 3, 4}, and is no longer bound to the bandwidth, and the 4 values can be used regardless of the bandwidth size.

The value of the crs-FreqShift-r11 parameter is optional for the NCT, i.e., the parameter may not be configured for the NCT.

The carrier type parameter is optional and needs to be selected if there are different carrier types to participate in the cooperation or aggregation.

The synchronization tracking reference signal is optional and describes configuration information related to the 5msCRS, so that the UE can know the configuration condition of the 5msCRS in the carrier. This parameter needs to be selected if there is a 5ms crs configuration in the carrier.

The configuration of the synchronization tracking CSI-RS is optional, and if the carrier is configured with the condition that the CSI-RS is adopted to execute the synchronization tracking, the parameter is a necessary parameter to help the UE to acquire the configuration information of the CSI-RS for the synchronization tracking.

The DMRS synchronization tracking configuration is optional, and if the carrier is configured with the condition of performing synchronization tracking by adopting the DMRS, the parameter is a necessary parameter to help the UE to acquire the DMRS configuration information for synchronization tracking.

The CSI-RS configuration for RSRP measurement is optional, and if the base station determines that the UE needs to perform corresponding RSRP measurement using a given CSI _ RS in a coordinated or aggregated carrier, the parameter is a mandatory parameter, which helps the UE to know CSI-RS configuration information for RSRP measurement.

The CSI-RS configuration of CSI measurement is optional, and if the base station determines that the UE needs to use the given CSI-RS to perform corresponding CSI measurement in the coordinated or aggregated carriers, the parameter is a necessary parameter to help the UE to know the CSI-RS configuration for CSI measurement.

The above-mentioned related to the CSI-RS configuration can be performed by using the existing CSI-RS configuration parameters.

There are, of course, many other embodiments of the invention, and it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments without departing from the spirit and scope of the embodiments of the invention, and it is intended that all such changes and modifications be covered by the appended claims.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. Embodiments of the invention are not limited to any specific form of hardware or software combination.

Claims

1. An information indication method, comprising:

the network side equipment sends a signaling structure to User Equipment (UE); the signaling structure is pre-agreed by the network side equipment and the UE and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic;

the signaling structure comprises at least one of the following parameters: the method comprises the steps of channel state information reference signal CSI-RS configuration information used for reference signal received power RSRP measurement, CSI-RS configuration information used for synchronous tracking, CSI-RS configuration information used for channel state information CSI measurement, reference signal configuration information used for synchronous tracking, demodulation reference signal DMRS configuration information used for synchronous tracking, carrier type information, identification information of quasi co-sited cells and multimedia broadcast single frequency network MBSFN subframe configuration information.

2. The information indication method of claim 1, wherein the network side device sends a signaling structure to the UE, including:

the network side equipment sends the signaling structure to the UE through a dedicated Radio Resource Control (RRC) message;

or,

and when the network side equipment has a new carrier type in a cooperative node configured for the UE, or the carrier used by the UE or the new carrier type in a cell, the network side equipment sends the signaling structure to the UE through the carrier matched with the new carrier.

3. The information indication method of claim 1, wherein the signaling structure further comprises: parameters for identifying a carrier type or channel in a carrier.

4. The information indicating method of claim 1, wherein the quasi co-sited characteristic comprises: the same effect or the result that both meet the preset standard is obtained when the setting operation is executed between the carriers or between the reference signals in the carriers;

or,

sharing synchronization precision and CSI measurement results among a plurality of carriers;

or,

the synchronization accuracy and the CSI measurement result of one carrier among the plurality of carriers are replaced by the synchronization accuracy and the CSI measurement result of another carrier.

5. The information indication method of claim 4, wherein the setting operation comprises at least one of the following types: synchronization tracking, CSI measurement, cell handover, and cell reselection.

6. The information indicating method of claim 1, wherein the identification information of the quasi co-sited cell is used to identify that the quasi co-sited characteristic is satisfied between a carrier or cell or transmission node serving the UE and another cell or carrier or transmission node.

7. The information indication method of claim 1, wherein the identification information of the quasi co-sited cell is represented by at least one of the following parameters: the method comprises the steps of cell physical identification ID, auxiliary cell index, cell virtual ID, cell physical ID, carrier frequency point, serving cell index, sequence index corresponding to the cell ID and configuration information of reference signals in the cell.

8. The information indication method of claim 1, wherein the identification information of the quasi co-sited cell is used to identify 2 or more than 2 cells or carriers or transmission nodes satisfying the quasi co-sited characteristic.

9. The information indication method of claim 8, wherein if the UE receives that the quasi co-sited characteristic is satisfied between the cell or carrier of the signaling structure and another cell or carrier, the identification information of the quasi co-sited cell comprises: identification information of the other cell or carrier that satisfies the quasi co-sited characteristic except for a cell in which the UE receives the signaling structure.

10. The information indication method of claim 1, wherein the MBSFN subframe configuration information is used for describing an MBSFN subframe configuration situation in a cell or carrier or transmission node identified by the identification information of the quasi co-sited cell; the MBSFN subframe configuration information is expressed by an MBSFN subframe configuration information unit.

11. The information indication method of claim 1, wherein the carrier type information comprises: and the type of the carrier used in the cell or the carrier or the transmission node identified by the identification information of the quasi co-sited cell is used, so that the UE can know the channel and/or signaling configuration condition in the cell or the carrier or the transmission node.

12. The information indication method of claim 1, wherein the carrier type information is used to describe channel or signal parameter configuration information in a quasi co-sited cell or carrier, so that the UE knows the channel or signal parameter configuration in the cell or carrier.

13. The information indication method of claim 1, wherein the carrier type information comprises at least one of the following types: compatible carrier type, new carrier type, synchronous new carrier type, asynchronous new carrier type, independent new carrier type.

14. The information indication method of claim 12, wherein the channel or signal parameter configuration condition comprises at least one of:

whether primary and secondary synchronization signaling PSS/SSS is configured; time domain location of PSS/SSS; whether CRS is configured or not; whether a 5ms CRS for synchronous tracking is configured; whether time domain positions of PBCH and ePBCH are configured; whether a PHICH is configured; whether a PCFICH is configured or not; whether a PDCCH is configured; whether ePBCH, ePHICH and ePDCCH are configured.

15. The information indication method of claim 1, wherein the signaling structure is configured in cell handover signaling, cell reselection signaling, or measurement signaling.

16. An information indication method, comprising:

UE receives a signaling structure sent by network side equipment; the signaling structure is pre-agreed by the UE and the network side equipment and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic; the signaling structure comprises at least one of the following parameters: the method comprises the following steps of CSI-RS configuration information for RSRP measurement, CSI-RS configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, DMRS configuration information for synchronous tracking, carrier type information, identification information of quasi co-sited cells and MBSFN subframe configuration information;

17. The information indication method of claim 16, wherein the UE receives the signaling structure sent by the network side device, and the method comprises:

the UE receives a signaling structure sent by the network side equipment through an RRC message;

or,

and when the network side equipment has a new carrier type in a cooperative node configured for the UE, or the carrier used by the UE or a cell has the new carrier type, the UE receives a signaling structure sent by the network side equipment through the carrier matched with the new carrier.

18. The information indicating method of claim 16, wherein the signaling structure further comprises: parameters for identifying a carrier type or channel in a carrier.

19. The information indicating method of claim 16, wherein the quasi co-sited characteristic comprises: the same effect or the result that both meet the preset standard is obtained when the setting operation is executed between the carriers or between the reference signals in the carriers;

or,

the synchronization accuracy and CSI measurement of one carrier among the multiple carriers may be replaced with the synchronization accuracy and CSI measurement of another carrier.

20. The information indication method of claim 19, wherein the setting operation includes at least one of the following types: synchronization tracking, CSI measurement, cell handover, and cell reselection.

21. The information indicating method of claim 16, wherein the identification information of the quasi co-sited cell is used to identify that the quasi co-sited characteristic is satisfied between a carrier or cell or transmission node serving the UE and another cell or carrier or transmission node.

22. The information indication method of claim 16, wherein the identification information of the quasi co-sited cell is represented by at least one of the following parameters: the method comprises the steps of cell physical identification ID, auxiliary cell index, cell virtual ID, cell physical ID, carrier frequency point, serving cell index, sequence index corresponding to the cell ID and configuration information of reference signals in the cell.

23. The information indication method of claim 16, wherein the identification information of the quasi co-sited cell is used to identify 2 or more than 2 cells or carriers or transmission nodes satisfying the quasi co-sited characteristic.

24. The information indication method of claim 23, wherein if the UE receives that the quasi co-sited characteristic is satisfied between the cell or carrier of the signaling structure and another cell or carrier, the identification information of the quasi co-sited cell comprises: identification information of the other cell or carrier that satisfies the quasi co-sited characteristic except for a cell in which the UE receives the signaling structure.

25. The information indication method of claim 16, wherein the MBSFN subframe configuration information is used for describing an MBSFN subframe configuration situation in a cell or carrier or transmission node identified by the identification information of the quasi co-sited cell; the MBSFN subframe configuration information is expressed by an MBSFN subframe configuration information unit.

26. The information indication method of claim 16, wherein the carrier type information comprises: and the type of the carrier used in the cell or the carrier or the transmission node identified by the identification information of the quasi co-sited cell is used, so that the UE can know the channel and/or signaling configuration condition in the cell or the carrier or the transmission node.

27. The information indication method of claim 16, wherein the carrier type information is used to describe channel or signal parameter configuration information in a quasi co-sited cell or carrier, so that the UE knows the channel or signal parameter configuration in the cell or carrier.

28. The information indication method of claim 16, wherein the carrier type information comprises at least one of the following types: compatible carrier type, new carrier type, synchronous new carrier type, asynchronous new carrier type, independent new carrier type.

29. The information indication method of claim 27, wherein the parameter configuration case comprises at least one of:

whether PSS/SSS is configured; time domain location of PSS/SSS; whether CRS is configured or not; whether a 5ms CRS for synchronous tracking is configured; whether time domain positions of PBCH and ePBCH are configured; whether a PHICH is configured; whether a PCFICH is configured or not; whether a PDCCH is configured; whether ePBCH, ePHICH and ePDCCH are configured.

30. The information indicating method of claim 16, wherein the signaling structure is configured in cell handover signaling, cell reselection signaling, or measurement signaling.

31. A network-side device, comprising:

32. A UE, comprising:

the receiving module is used for receiving a signaling structure sent by the network side equipment; the signaling structure is pre-agreed by the UE and the network side equipment and is used for informing that reference signals in at least two carriers served by the UE meet the quasi co-sited characteristic; the signaling structure comprises at least one of the following parameters: the method comprises the following steps of CSI-RS configuration information for RSRP measurement, CSI-RS configuration information for synchronous tracking, CSI-RS configuration information for CSI measurement, reference signal configuration information for synchronous tracking, DMRS configuration information for synchronous tracking, carrier type information, identification information of quasi co-sited cells and MBSFN subframe configuration information;