WO2011035681A1

WO2011035681A1 - Method and apparatus for configuring subframes for positioning service

Info

Publication number: WO2011035681A1
Application number: PCT/CN2010/076581
Authority: WO
Inventors: 苟伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-24
Filing date: 2010-09-02
Publication date: 2011-03-31
Also published as: CN102036381B; CN102036381A

Abstract

The present invention discloses an apparatus for configuring subframes for a positioning service. The apparatus includes a configuration unit and a transmission unit, wherein the configuration unit is set to configure a subframe for a positioning service to a subframe which is different from a Paging Occasion (PO), and the transmission unit is set to transmit a Positioning Reference Symbol (PRS) on the subframe for the positioning service configured by the configuration unit. The present invention also discloses a method for configuring subframes for a positioning service. The present invention can avoid a collision between a PRS and a paging message, and definitely reduce the sets of the subframes which can be used for the positioning service under different scenes, thus reducing the complexity of the transmission and reception of PRS, maximizing, by configuring the subframes for the positioning service according to the scenes, the number of the subframes used for the positioning service, and enabling the transmission terminal to easily configure the subframes for the positioning service.

Description

Method and device for configuring subframe of positioning service

The present invention relates to the field of communications, and in particular, to a method and apparatus for configuring a subframe of a positioning service in a system of Long Term Evolution (LTE).

Background technique

Systems such as LTE R9 and LTE-Advanced, such as LTE R8 and later, support the positioning of the receiver. In short, it is through the combination of multiple cells to locate the geographical location of the receiving end, which is a reasonable supplement to the existing positioning technology. For example, in places where satellite positioning cannot be covered, such as indoors, tunnels, etc., it can be located through the positioning mechanism provided by the wireless communication network to meet the needs of users. The need for LTE support positioning is proposed in RAN#42, which is listed as the research content of LTE R9. Beginning with the 55b meeting, discussions on related issues began in the 3rd Generation Partnership Project (3GPP) meeting. At present, the LTE R9 has reached a consensus that: the subframe of the positioning service may use a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) subframe, also referred to as a multicast subframe; Normal subframe, that is, a unicast subframe, also called a non-multicast subframe. Further, the positioning service is defined to use a positioning reference signal (Positioning Reference Symbol,

PRS), the design of the PRS is based on a Physical Resource Block (PRB), so the PRS can be sent on some PRBs of the subframe, and the data of the receiver can be sent on other PRBs. The bandwidth that PRS can occupy in LTE is configurable, that is, it can be 1, 1/2, 1/3, 1/6 times of the system bandwidth. In general, when there is no important system information or control information in the data field of the subframe, the PRS occupies the PRB of all data fields of the subframe according to the bandwidth allocated by the PRS. However, some exceptional cases, for example, to carry a physical broadcast control channel (Physical Broadcast Channel, PBCH), a primary synchronization sequence bad ¹ K Primary Synchronization Sequence, PSS) and secondary synchronization sequences bad 'J (Secondary Synchronization Sequence, SSS ) subframes in, The PRS is not transmitted on the PRB carrying the PBCH, PSS, and SSS, and the PRS is transmitted on other PRBs of the subframe. However, the reason why this can be done is mainly because the PRB occupied by the data of PBCH, PSS and SSS is agreed in advance, and the receiving end knows that no additional notice is required.

System Configuration in LTE The bandwidth of the PRS is semi-static, that is, once configured, subsequent changes are slow. The subframe of the paging message in the system is also configured by the system, and will not change in a short time. In this way, if the system configures the PRS to occupy the entire bandwidth, then the change does not occur for a period of time. If the subframe used by the configured PRS has a subframe carrying the paging message, then the paging message is received. And PRS will conflict within the data of this subframe.

SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method and a device for configuring a subframe of a positioning service, which avoids collision between a subframe in which a positioning service is located and a subframe in which a paging message is located. In order to solve the above technical problem, the present invention provides a method for configuring a subframe of a positioning service, including: a sending end configures a subframe of a positioning service as a subframe different from a paging occasion (PO); and the transmitting end is The positioning reference signal is sent to the receiving end on the subframe of the positioning service. The step of configuring the subframe of the positioning service to be a different subframe from the PO includes: when the positioning service and the paging message are in the same radio frame, the sending end configures the subframe of the positioning service as a downlink sub-port other than the PO One or more of the frames, or configure the subframe of the positioning service to be one or more of the downlink subframes other than the potential paging subframe. The step of configuring, by the sending end, the subframe of the positioning service to be a different subframe from the PO includes: when the positioning service and the paging message are not in the same radio frame, the sending end configures the subframe of the positioning service as one of the downlink subframes. Or multiple, or configure the subframe of the positioning service as one or more of the downlink subframes except the PO number subframe, or configure the subframe of the positioning service to be other than the potential paging subframe. One or more of the downlink subframes; where the PO number subframe is the same subframe as the PO subframe number. In the step of configuring the subframe of the positioning service to be one or more of the downlink subframes other than the PO, the transmitting end preferentially configures one or more of the downlink subframes except the potential paging subframe as Position the sub-frame of the service. The step of configuring, by the sending end, the subframe of the positioning service as one or more of the downlink subframes, or configuring the subframe of the positioning service as one or more of the downlink subframes except the PO numbering subframe The sender preferentially configures one or more of the downlink subframes other than the potential paging subframe as the subframe of the positioning service. In frequency division duplex (FDD) mode, the PO is one of #0, #4, #5, and #9 subframes or

In time division duplex (TDD) mode, the PO is one or more of #0, #1, #5, and #6 subframes.

In frequency division duplex (FDD) mode, the potential paging subframes are: #0, #4, #5, and #9 subframes; in time division duplex (TDD) mode, the potential paging subframe The frames are: #0, #1, #5, and #6 sub-frames.

In order to solve the above technical problem, the present invention further provides a configuration apparatus for a subframe of a positioning service, which includes a configuration unit and a sending unit. The configuration unit is configured to: configure a subframe of the positioning service to be a subframe different from the PO. The sending unit is configured to: send a positioning reference signal on a subframe of the positioning service configured by the configuration unit. The configuration unit is configured to configure a subframe of the positioning service to be different from the PO according to the following manner: when the positioning service and the radio frame where the paging message is located are the same, configure the subframe of the positioning service to be One or more of the downlink subframes other than the PO, or a subframe in which the service will be located Configured to be one or more of the downlink subframes other than the potential paging subframe. The configuration unit is configured to configure the subframe of the positioning service to be different from the PO according to the following manner: when the positioning service and the paging message are not in the same radio frame, configure the subframe of the positioning service as a downlink subframe. Or one or more of the subframes of the positioning service are configured as one or more of the downlink subframes other than the PO number subframe, or the subframe of the positioning service is configured to be a potential paging One or more of the downlink subframes other than the frame; wherein the PO number subframe is the same subframe as the PO subframe number. The configuration unit is configured to configure the subframe of the positioning service to be one or more of the downlink subframes except the PO: preferentially one or more of the downlink subframes other than the potential paging subframe A subframe configured to locate a service. The configuration unit is configured to configure a subframe of the positioning service as one or more of the downlink subframes, or configure the subframe of the positioning service into a downlink subframe other than the PO number subframe. One or more: preferentially configure one or more of the downlink subframes other than the potential paging subframe as the subframe of the positioning service. In frequency division duplex (FDD) mode, the PO is one of #0, #4, #5, and #9 subframes or

In time division duplex (TDD) mode, the PO is one or more of #0, #1, #5, and #6 subframes. In frequency division duplex (FDD) mode, the potential paging subframes are: #0, #4, #5, and #9 subframes; in time division duplex (TDD) mode, the potential paging subframe The frames are: #0, #1, #5, and #6 sub-frames.

The invention solves the positioning service radio frame and the sub-frame in which the paging message is located in the subframe configuration process. The collision problem avoids the conflict between the PRS and the paging message. It is clear that the set of available subframes for the positioning service in different scenarios is reduced, so that the complexity of the transmission and reception of the PRS is reduced, and the subframe of the positioning service is configured by the sub-scenario. The number of subframes that can be utilized by the positioning service is maximized, and the subframe where the positioning service is configured by the transmitting end is easy.

1 is a schematic diagram of a subframe configuration of an LTE Frequency Division Duplex (FDD) mode; FIG. 2 is a schematic diagram of a subframe configuration of an LTE Time Division Duplex (TDD) mode; FIG. 4 is a schematic diagram of a configuration of a radio frame and a subframe according to an embodiment of the present invention. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Before explaining an embodiment of the present invention, first, in combination with FIG. 1 and FIG. 2, FDD and

The subframe structure in the TDD mode will be described.

There are two types of frame structures of the 3GPP LTE system, namely, Type 1 and Type 2. The Type 1 frame structure (ie, the frame structure shown in FIG. 1) is applied to the FDD mode, and the Type 2 frame structure (ie, the frame structure shown in FIG. 2) is applied to the TDD mode. As shown in FIG. 1 , the length of one radio frame in the FDD mode is 10 ms, and each radio frame includes 10 subframes, and the length of each subframe is 1 ms. As shown in FIG. 2, in the LTE frame structure, a 10 ms radio frame in TDD mode is divided into two 5 ms half frames, and each half frame is protected by five 1 ms time slots (Downlink Pilot Time Slot, DwPTS). The Guard Period (GP) and the Uplink Pilot Time Slot (UpPTS) are three special time slots. The lengths of the three time slots are configurable, but the total length of the three time slots is fixed. For 1 ms, other sub-frames are composed of two 0.5 ms time slots. The paging mechanism currently used in the FDD mode and the TDD mode in LTE will be described below. As shown in Table 1, in the FDD mode, a subframe that can be used as a paging subframe in LTE includes: a first subframe (subframe #0) and a fifth subframe (subframe #4) of the radio frame, The sixth subframe (subframe #5) and the tenth subframe (subframe #9); as shown in Table 2, in the TDD mode, the subframe that can be used as the paging subframe in LTE includes: One subframe (subframe #0), second subframe (subframe #1), sixth subframe (subframe #5), and seventh subframe (subframe #6). Table 1 FDD paging subframe configuration table

Table 2 TDD paging subframe configuration table

In Table 1 and Table 2, the paging occasion (Paging Occasion, PO) can be understood as a paging subframe, that is, the paging occasion of the User Equipment (UE) is on the subframe; i_s is Refers to: a value calculated by the UE in combination with its own identity (UE Identity, UE-ID) and the paging parameters configured by the base station of its home cell, according to the method specified in the protocol (refer to 36.304); Ns is an intermediate parameter , indicates the number of paging subframes configured in a radio frame. For example, when the base station sets Ns=2, in the FDD mode, the subframe #4 and the subframe #9 are used to send the paging message, and the subframe #0 and the subframe #5 do not send the paging message, and the PO is the subframe. #4 and subframe #9, subframe #0 and subframe #5 are not PO; when the base station sets Ns=2, in TDD mode, subframe #0, subframe #5 is used to send paging message, subframe # 1 and subframe #6 do not send a paging message, in which case PO is subframe #0 and subframe #5, and subframe #1 and subframe #6 are not PO. For convenience of description, the radio frame carrying the paging message is referred to as a paging frame (PF), and the subframe of the transmission paging message configured by the 4 bar base station is referred to as a paging or paging subframe, which may be used for The subframe in which the paging message is transmitted is called a potential paging. Subframes, such as the above-described FDD mode, subframes #0, #4, #5, and #9 are subframes that may be used to transmit paging messages. In TDD mode, subframes #0, #1, # 5 and #6 are subframes that may be used to transmit paging messages, which are referred to as potential paging subframes in the present invention. Moreover, as can be seen from Table 1, in the FDD mode, the subframe #9 is always used to transmit paging information. As can be seen from Table 2, in the TDD mode, the subframe #0 is always used for transmitting paging. information. The paging occasion is defined as: a paging occasion is a subframe in which a paging wireless network temporary identifier may be used on a Physical Downlink Control Channel (PDCCH) (Paging Radio Network Temporary) Identifier, P-RNTI) identifies a paging message (One Paging Occasion (PO) is a subframe where there may be P-RNTI transmitted on PDCCH addressing the paging message.). The above is the configuration of the subframe, and there is also the configuration of the paging radio frame, that is, whether each radio frame in the system is a radio frame carrying the paging message is an algorithm specified by the system according to the protocol, The user situation in the small area is configured. The configuration of the radio frame carrying the paging message satisfies the following equation: SFN mod T= (T division N)*(UE_ID mod N)

■ SFN is the system radio frame number, which ranges from 0 to 1023.

■ T is the Discontinuous Reception (DRX) period of the receiving end. The value of T is notified by higher layer signaling, and the value ranges from 32, 64, 128, and 256 radio frames. • ηΒ is 4Τ, 2Τ, Τ, 1/2T, 1/4T, 1/8T, 1/16T, 1/32Τ. Description time

(in the paging cycle), the total number of defects.

■ N = min(T, nB). Describe the number of paging groups that divide the UE at the radio frame level. Possible values range: 2, 4, 8, 16, 32, 64, 128, 256; within time T (in the paging cycle), Paging The total number of frames. ■ Ns=max( 1 , ηΒ/Τ) „ Full name N subframes_per— frame , which means each PF ( Paging

Frame, which is the number of paging subframes included in the radio frame carrying the paging message. Only when N=T, the value of Ns can be greater than 1, and when N<T, Ns=l; the range of Ns may be Ns = 1, 2, 4.

■ UE ID: IMSI mod 4096. The IMSI is an International Mobile Subscriber Identity (UEX), and the UE ID is the last 12 bits after the IMSI is converted to binary. Due to the TDD mode, there are many cases of uplink and downlink subframe configuration:

LTE uplink and downlink subframe configuration table

In Table 3, D represents a downlink subframe, U represents an uplink subframe, and S represents a downlink to uplink handover subframe. Since the downlink service can also be transmitted in the S subframe, the S subframe is also used as the downlink subframe for convenience of description. That is, the downlink subframe of the TDD mode includes a subframe denoted as D and a subframe denoted as S.

The preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. The basic idea of the present invention is to: circumvent the conflict between the reference signal of the positioning service and the paging message by the evasion of the sub-frame level, and configure the subframe of the positioning service to be a different subframe from the PO to solve the positioning service. Loss of signal performance due to resource conflicts between reference signals or paging messages. Several methods are provided below. In the present invention, the following four methods can be used to configure the subframe of the positioning service: Method 1: The sending end configures the subframe of the positioning service as one or more of the downlink subframes except the potential paging subframe; and the sending end sends the positioning reference signal to the receiving end on the subframe of the positioning service. .

The FDD mode, the potential paging subframes are: #0, #4, #5, and #9 subframes; in the TDD mode, the potential paging subframes are: #0, #1. #5 and #6 subframes. which is:

In the FDD mode, the sending end configures the subframe of the positioning service as one or more of the downlink subframes except the #0, #4, #5, and #9 subframes; in the TDD mode, the sending end The subframe of the positioning service is configured as one or more of the downlink subframes except the #0, #1, #5, and #6 subframes; that is, regardless of whether the positioning service and the paging message are in the same radio frame, In the FDD mode, the positioning service can use one or more of the downlink subframes except the #0, #4, #5, and #9 subframes; in the TDD mode, the positioning service can use the #0, #1, One or more of the downlink subframes other than the #5 and #6 subframes. The transmitting end is a base station or a relay station, and the receiving end is a relay station or a UE.

Method 2:

When the positioning service and the paging message are in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes except the potential paging subframe;

When the positioning service and the paging message are not in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes; and the sending end sends the positioning on the subframe of the positioning service. The reference signal is sent to the receiving end. which is:

When the radio frame in which the location service and the paging message are located is the same, in the FDD mode, the sender configures the subframe of the positioning service as a downlink sub-frame other than the #0, #4, #5, and #9 subframes. One or more of the frames; in the TDD mode, the transmitting end configures the subframe of the positioning service as one or more of the downlink subframes except the #0, #1, #5, and #6 subframes; When the positioning service and the paging message are not in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes. Further, the transmitting end may configure the positioning subframe by using the priority level. In the FDD mode, one or more of the downlink subframes except the potential paging subframes (ie, #0, #4, #5, and #9 subframes) are preferentially selected to locate the service subframe, and then When the number of positioning service subframes needs to be large, one or more configuration positioning service subframes are selected from the #0, #4, #5, and #9 subframes. In this way, when the transmitting end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent. A similar approach is used in TDD mode. That is, when the radio frame where the locating service and the paging message are located is the same, the subframe configuration of the locating service is: In the FDD mode, the positioning service can use the subframes except #0, #4, #5, and #9. One or more of the downlink subframes other than the downlink subframes; in the TDD mode, the positioning service can use one or more of the downlink subframes other than the #0, #1, #5, and #6 subframes. When the positioning service and the paging message are not in the same radio frame, the subframe configuration of the positioning service is: In the FDD mode, the positioning service uses the downlink subframes #0, #1, #2, #3, #4, #5, # 6. One or more of #7, #8, and #9. In the TDD mode, the positioning service uses one or more of the downlink subframes. Further, at this time, the transmitting end may configure the positioning subframe by using the priority level, and in the FDD mode, preferentially select one or more configurations in the downlink subframes other than the #0, #4, #5, and #9 subframes. To locate the service sub-frame, secondly, when the number of positioning service sub-frames needs to be large, one or more configuration positioning service sub-frames are selected from the #0, #4, #5, and #9 sub-frames. In this way, when the transmitting end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent. A similar approach is used in TDD mode. The transmitting end is a base station or a relay station, and the receiving end is a relay station or a UE.

Method 3: When the positioning service and the paging message are in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes other than the PO; when the positioning service and the paging message are not in the same In a radio frame, the transmitting end configures the subframe of the positioning service as one or more of the downlink subframes except the PO number subframe; and the transmitting end sends the positioning reference signal on the subframe of the positioning service. To the receiving end; The PO number subframe is the same subframe as the PO subframe number; wherein, in the FDD mode, the PO number subframe is one or more of the #0, #4, #5, and #9 subframes; The PO number subframe is configured by the sender according to the number of users of the cell.

In the TDD mode, the PO numbered subframe is one or more of the #0, #1, #5, and #6 subframes. The PO is configured by the sender according to the number of users of the cell. The transmitting end is a base station or a relay station, and the receiving end is a relay station or a UE.

Method 4:

When the positioning service and the paging message are in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes other than the PO;

When the positioning service and the paging message are not in the same radio frame, the sending end configures the subframe of the positioning service as one or more of the downlink subframes;

Further, at this time, the transmitting end may configure the positioning subframe by using the priority level, and in the FDD mode, the downlink is preferentially excluded except for the potential paging subframes (ie, #0, #4, #5, and #9 subframes). One or more of the sub-frames are configured to locate the service sub-frame, and secondly, when the number of positioning service sub-frames needs to be large, one or more configuration positions are selected from the #0, #4, #5, and #9 sub-frames. Service subframe. In this way, when the sending end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent. A similar approach is used in TDD mode. And the sending end sends the positioning reference signal to the receiving end in the subframe of the positioning service; where, in the FDD mode, the PO is one or more of the #0, #4, #5, and #9 subframes The PO is configured by the sender according to the number of users in the cell.

In the TDD mode, the PO is one or more of the #0, #1, #5, and #6 subframes. The PO is configured by the sender according to the number of users of the cell. That is, when the radio frame in which the locating service and the paging message are located is the same, the subframe configuration of the locating service is: In the FDD mode, the locating service can use one or more configured by the transmitting end. A downlink subframe other than the PO; in the TDD mode, the positioning service can use a downlink subframe other than one or more POs configured by the sender. When the positioning service and the paging message are not in the same radio frame, the subframe configuration of the positioning service is as follows: In the FDD mode, the positioning service uses #0, #1, #2, #3, #4, #5, #6, # 7. One or more downlink subframes in the #8 and #9 subframes. In the TDD mode, the positioning service uses one or more downlink subframes except the uplink subframe. Further, at this time, the transmitting end may configure the positioning subframe by using the priority level, and in the FDD mode, preferentially select one or more configurations in the downlink subframes other than the #0, #4, #5, and #9 subframes. To locate the service sub-frame, when the number of positioning service sub-frames needs to be large, select one or more configuration positioning service sub-frames from the #0, #4, #5, and #9 sub-frames. In this way, when the transmitting end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent.

A similar approach is used in TDD mode. The transmitting end is a base station or a relay station, and the receiving end is a relay station or a UE.

As shown in FIG. 3, the apparatus for configuring a subframe of a positioning service according to an embodiment of the present invention is applied to a transmitting end, and includes a configuration unit and a sending unit. The configuration unit is configured to: configure a subframe of the positioning service to be different from the PO. The sending unit is configured to: send a positioning reference signal on a subframe of the positioning service configured by the configuration unit. The configuration unit is configured to configure a subframe of the positioning service to be different from the PO according to the following manner: when the positioning service and the radio frame where the paging message is located are the same, configure the subframe of the positioning service to be One or more of the downlink subframes other than the PO, or the subframe of the positioning service is configured as one or more of the downlink subframes except the potential paging subframe. The configuration unit is configured to configure the subframe of the positioning service as one or more of the downlink subframes other than the PO as follows: preferentially configure one or more of the downlink subframes other than the potential paging subframe A subframe for locating a service. Alternatively, the configuration unit is configured to configure a subframe of the positioning service to be different from the PO according to the following manner: when the positioning service and the paging message are not in the same radio frame, configuring the subframe of the positioning service as a downlink sub-frame One or more of the frames, or configure the subframe of the positioning service as one or more of the downlink subframes except the PO number subframe, or configure the subframe of the positioning service to be included in the potential paging One or more of the downlink subframes other than the subframe; wherein the PO number subframe is the same subframe as the PO subframe number. The configuration unit is configured to configure the subframe of the positioning service as one or more of the downlink subframes, or configure the subframe of the positioning service to be one of the downlink subframes other than the PO number subframe or Multiple: One or more of the downlink subframes other than the potential paging subframe are preferentially configured as subframes of the positioning service.

Embodiment 1 Corresponding method 1 of this embodiment:

In the FDD mode, the subframe of the positioning service is configured as one or more of the downlink subframes except the #0, #4, #5, and #9 subframes. In the TDD mode, the subframe of the positioning service is configured to be One or more of the downlink subframes other than the #0, #1, #5, and #6 subframes. The PF period is configured to be 128 radio frames, for example, SFN=0, SFN=128, and SFN=256, and so on, and the PF configured by the sender can be obtained. Further, the POs in each PF of the FDD mode are configured as #4 and #9, that is, subframes #4 and #9 of each PF are subframes that actually carry paging messages, and subframes #0 and #5 do not. Carry a paging message. The POs in each PF of the TDD mode are configured as #0 and #5, that is, the subframes #0 and #5 of each PF are subframes that actually carry paging messages, and subframes M and # ₆ do not carry paging. Message. The sub-frame configuration process of the locating service includes: first configuring a radio frame carrying the positioning service, and then configuring a sub-frame of the positioning service in the configured radio frame. The radio frames carrying the positioning service are also configured according to the period. For example, the period is 16, 32, 64 or 128 radio frames. For example, the period of carrying the positioning service For example, SFN=0, SFN=32, and SFN=64 are analogously referred to as radio frames carrying positioning services. According to the method 1, the transmitting end does not impose any restrictions on the configuration of the radio frame of the positioning service, that is, the PF and the radio frame carrying the positioning service may be the same radio frame, or may be separated directly at the radio frame level. After the sender configures the radio frame level for the location service, in the FDD mode, the subframe level can only select one or more of the #1, #2, #3, #6, #7, and #8 subframes. A sub-frame carrying the positioning service; in the TDD mode, only one or more of the downlink sub-frames other than #0, #1, #5, and #6 can be selected as the sub-frames carrying the positioning service.

Embodiment 2 Corresponding method 2 of this embodiment:

The configuration of the sub-frames of the locating service is divided into two cases. The description is as follows: When the radio frame where the locating service and the paging message are located are the same, in the FDD mode, the sub-frames of the locating service are configured to be #0, #4, One or more of the downlink subframes other than the #5 and #9 subframes; in the TDD mode, the subframes of the positioning service are configured as downlink subframes other than the #0, #1, #5, and #6 subframes. One or more of them;

When the positioning service and the paging message are not in the same radio frame, the subframe of the positioning service is configured as one or more of the downlink subframes. Further, at this time, the transmitting end may configure the positioning subframe by using the priority level, and in the FDD mode, preferentially select one or more configurations in the downlink subframes other than the #0, #4, #5, and #9 subframes. To locate the service sub-frame, secondly, when the number of positioning service sub-frames needs to be large, one or more configuration positioning service sub-frames are selected from the #0, #4, #5, and #9 sub-frames. In this way, when the transmitting end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent. A similar approach is used in TDD mode. The PF period is configured to be 128 radio frames, for example, SFN=0, SFN=128, and SFN=256, and so on, and the PF configured by the sender can be obtained. Further, the POs in each PF of the FDD mode are configured as #4 and #9, that is, subframes #4 and #9 of each PF are subframes that actually carry paging messages, and subframes #0 and #5 do not. Carry a paging message. The POs in each PF of the TDD mode are configured as #0 and #5, that is, the subframes #0 and #5 of each PF are subframes that actually carry paging messages. Subframes M and #6 do not carry paging messages. The sub-frame configuration process of the locating service includes: first configuring a radio frame carrying the positioning service, and then configuring a sub-frame of the positioning service in the configured radio frame. The radio frames carrying the positioning service are also configured according to the period. For example, the period is 16, 32, 64 or 128 radio frames. For example, the period of the bearer location service is 32, that is, SFN=0, SFN=32, SFN=64, SFN=96, SFN=128, etc., and so on are the radio frames carrying the positioning service.

According to the method 2, the transmitting end does not impose any restrictions on the configuration of the radio frame of the positioning service, that is, the PF and the radio frame carrying the positioning service may be the same radio frame, or may be separated directly at the radio frame level. After the transmitter is configured with the radio frame level of the locating service, it is divided into two types of sub-frames that are configured according to the following rules: If the radio frame and the PF of the configured positioning service are the same radio frame, then the wireless The subframe configuration of the positioning service in the frame is as follows.

■ In FDD mode, the sub-frame level can select sub-frames other than #0, #4, #5, and #9 sub-frames, that is, sub-frames #1, #2, #3, #6, #7, and #8 One or more of the sub-frames that carry the positioning service cannot select subframes #0, #4, #5, and #9. Here subframes #0, #4, #5 and #9 are subframes specified by the system that may be used to send paging messages;

■ In TDD mode, one or more of the following sub-frames other than #0, #1, #5, and #6 subframes can be selected as subframes for carrying positioning services. Here, subframes #0, #1, #5, and #6 are subframes specified by the system that may be used to send paging messages; if the configured radio frame carrying the positioning service and the PF are not the same radio frame, then this type The subframe configuration of the positioning service in the radio frame is as follows.

■ In FDD mode, the subframe level can select any one or more of the downlink subframes in the radio frame; the sender configures the positioning service subframe to preferentially select subframes #1, #2, #3, #6, #7 and One or more of #8, when these subframes are not enough, select subframes #0, #4,

One or more of #5 and #9.

■ In TDD mode, the subframe level can select any one of the downlink subframes in the radio frame or Multiple. The transmitting end configuration positioning service subframe preferentially selects one or more of the downlink subframes except the subframes #0, #1, #5, and #6 subframes. When the subframes are insufficient, the subframe #0 is selected. One or more of #1, #5 and #6.

Embodiment 3 Corresponding to the method 3: When the positioning service and the paging message are in the same radio frame, the subframe of the positioning service is configured as one or more of the downlink subframes other than the PO; when the positioning service and the locating When the call message is not in the same radio frame, the subframe of the positioning service is configured as one or more of the downlink subframes except the PO number subframe;

The PO number subframe is the same subframe as the PO subframe number. In the FDD mode, the PO is one or more or all of the #0, #4, #5, and #9 subframes; and the PO is configured by the sender according to the number of users of the cell.

In the TDD mode, the PO is one or more or all of the #0, #1, #5, and #6 subframes. The PO is configured by the sender according to the number of users of the cell. The PF period of the transmitting end is set to 128 radio frames, for example, SFN=0, SFN=128, SFN=256, etc., and so on, the PF configured by the transmitting end can be obtained. Further, the POs in each PF of the FDD mode are configured as #4 and #9, that is, subframes #4 and #9 of each PF are subframes that actually carry paging messages, and subframes #0 and #5 do not. Carry a paging message. The POs in each PF of the TDD mode are configured as #0 and #5, that is, the subframes #0 and #5 of each PF are subframes that actually carry paging messages, and subframes M and # ₆ do not carry paging. Message. The sub-frame configuration process of the locating service includes: first configuring a radio frame carrying the positioning service, and then configuring a sub-frame of the positioning service in the configured radio frame. The radio frames carrying the positioning service are also configured according to the period. For example, the period is 16, 32, 64 or 128 radio frames. For example, the period of the bearer location service is 32, that is, SFN=0, SFN=32, SFN=64, etc., and so on, is a radio frame carrying the positioning service. According to the method 3, the transmitting end does not impose any restrictions on the configuration of the radio frame of the positioning service, that is, the PF and the radio frame carrying the positioning service may be the same radio frame, or may be directly at the radio frame level. Just go apart. After the transmitter is configured to carry the radio frame level of the locating service, in the FDD mode, the sub-frame level can select a downlink sub-frame other than the PO or PO number sub-frame configured in the transmitting end (subframes #4 and #9 in this embodiment). One or more of the frames are used as the sub-frames that carry the positioning service. In the TDD mode, the sub-frame level can only select the PO or PO number sub-frames configured by the transmitting end (subframes #0 and #5 in this embodiment). One or more of the other downlink subframes are used as subframes for carrying the positioning service.

Embodiment 4 Corresponding to the method in this embodiment 4: The configuration of the subframe of the positioning service is divided into two cases, and the description is as follows: When the radio frame where the positioning service and the paging message are located are the same, the subframe of the positioning service is configured as One or more of the downlink subframes other than the PO; when the positioning service and the paging message are not in the same radio frame, the subframe of the positioning service is configured as one or more of the downlink subframes. Further, at this time, the transmitting end may configure the positioning subframe by using the priority level, and in the FDD mode, preferentially select one or more configurations in the downlink subframes other than the #0, #4, #5, and #9 subframes. To locate the service sub-frame, secondly, when the number of positioning service sub-frames needs to be large, one or more configuration positioning service sub-frames are selected from the #0, #4, #5, and #9 sub-frames. In this way, when the transmitting end adjusts the configuration of the paging sub-frame, the collision between the paging sub-frame and the positioning service sub-frame can be reduced to some extent. A similar approach is used in TDD mode. As shown in FIG. 4, the configuration of the PF period is 128 radio frames, for example, SFN=0, SFN=128, SFN=256, etc., and the PF configured by the sender can be obtained. Further, the POs in each PF of the FDD mode are configured as #4 and #9, that is, subframes #4 and #9 of each PF are subframes that actually carry paging messages, and subframes #0 and #5 do not. Carry a paging message. The POs in each PF of the TDD mode are configured as #0 and #5, that is, the subframes #0 and #5 of each PF are subframes that actually carry paging messages, and subframes #1 and #6 do not carry homing. Call the message. The sub-frame configuration process of the locating service includes: first configuring a radio frame carrying the positioning service, and then configuring a sub-frame of the positioning service in the configured radio frame. The radio frames carrying the positioning service are also configured according to the period. For example, the period is 16, 32, 64 or 128 radio frames. For example, the period of the bearer location service is 32, that is, SFN=0, SFN=32, SFN=64, SFN=96, SFN=128, etc. A radio frame carrying a positioning service. According to the method 4, the transmitting end does not impose any restrictions on the configuration of the radio frame of the positioning service, that is, the PF and the radio frame carrying the positioning service may be the same radio frame, or may be separated directly at the radio frame level. After the transmitter is configured with the radio frame level of the locating service, it is divided into two types of sub-frames that are configured according to the following rules: If the radio frame and the PF of the configured positioning service are the same radio frame, then the wireless The subframe configuration of the positioning service in the frame is as follows.

■ In FDD mode, the subframe level can select downlink subframes other than PO or PO number subframes, that is, subframes #1, #2, #3, #6, #7 and #8, and #0 and #5. One or more of the sub-frames that carry the positioning service cannot select #4 and #9;

In the TDD mode, the subframe level can select one or more of the downlink subframes other than the PO or PO number subframe as the subframes that carry the positioning service, that is, the downlink subframes other than #0 and #5. The time location service can select #1 and #6 subframes that are not configured as POs. If the configured radio frame and the PF of the bearer location service are not the same radio frame, the subframe configuration of the positioning service in the radio frame is as follows.

■ In FDD mode, the subframe level can select any one or more of the downlink subframes in the radio frame; the sender configures the positioning service subframe to preferentially select subframes #1, #2, #3, #6, #7 and #8, When these subframes are not enough, select subframes #0, #4, #5, and #9.

■ In TDD mode, the subframe level can select any one or more of the downlink subframes in the radio frame. The transmitting end configures the positioning service subframe to preferentially select downlink subframes other than the potential paging subframes (ie, #0, #1, #5, and #6 subframes), and when these subframes are not enough, select the subframes again. 0, #1, #5, and #6. The positioning service described in the foregoing Embodiments 1, 2, 3, and 4 is specifically that the sending end configures a series of subframes, and helps the receiving end to achieve positioning by transmitting a positioning reference signal on the configured series of subframes. One of ordinary skill in the art will appreciate that all or part of the steps in the above methods may be passed through the program. The instructions are related to hardware completion, and the program can be stored in a computer readable storage medium such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

It is a matter of course that the invention may be embodied in various other forms and modifications without departing from the spirit and scope of the invention.

Industrial Applicability The present invention solves the problem of the collision between the radio frame of the positioning service and the subframe in which the paging message is located, avoids the conflict between the PRS and the paging message, and clarifies that the available subframes of the positioning service are reduced in different scenarios. The sequel, so as to reduce the complexity of the transmission and reception of the PRS, the sub-frames of the locating service are configured by the sub-scenario to maximize the number of sub-frames that can be utilized by the locating service, and the sub-frames of the locating service are easily configured by the transmitting end.

Claims

Claim

A method for configuring a subframe for a positioning service, comprising: configuring, by a transmitting end, a subframe of a positioning service to be a subframe different from a paging occasion (PO); and a subframe of the transmitting end in the positioning service The positioning reference signal is sent to the receiving end.

2. The method according to claim 1, wherein: the step of the transmitting end configuring the subframe of the positioning service as a subframe different from the PO comprises: when the positioning service and the paging message are in the same radio frame, the sending end The subframe of the positioning service is configured as one or more of the downlink subframes other than the PO, or the subframe of the positioning service is configured as one or more of the downlink subframes except the potential paging subframe.

3. The method according to claim 1, wherein: the step of the transmitting end configuring the subframe of the positioning service as a subframe different from the PO comprises: when the positioning service and the paging message are not in the same radio frame, the sending end The subframe of the positioning service is configured as one or more of the downlink subframes, or the subframe of the positioning service is configured as one or more of the downlink subframes other than the PO number subframe, or the positioning service is to be located. The subframe is configured as one or more of the downlink subframes except the potential paging subframe; wherein the PO number subframe is the same subframe as the PO subframe number.

4. The method according to claim 2, wherein: in the step of configuring the subframe of the positioning service to be one or more of the downlink subframes other than the PO, the sender preferentially removes the potential paging One or more of the downlink subframes other than the frame are configured as subframes for positioning services.

The method of claim 3, wherein: the sending end configures the subframe of the positioning service as one or more of the downlink subframes, or configures the subframe of the positioning service to be a PO number subframe. One or more of the other downlink sub-frames In the step, the sending end preferentially configures one or more of the downlink subframes other than the potential paging subframe as the subframe of the positioning service.

The method according to any one of claims 1 to 5, wherein: in frequency division duplex (FDD) mode, the PO is one of #0, #4, #5, and #9 subframes or

The method according to any one of claims 2 to 5, wherein: in the frequency division duplex (FDD) mode, the potential paging subframes are: #0, #4, #5, and #9 Subframe

In time division duplex (TDD) mode, the potential paging subframes are: #0, #1, #5, and #6 subframes.

A configuration device for locating a sub-frame of a service, comprising: a configuration unit and a sending unit; the configuration unit is configured to: configure a subframe of the positioning service to be a different subframe from the PO; the sending unit is configured to: And transmitting a positioning reference signal on a subframe of the positioning service configured by the configuration unit.

9. The apparatus according to claim 8, wherein: the configuration unit is configured to configure a subframe of a positioning service to be different from a PO in a manner of: when a radio frame in which a positioning service and a paging message are located is If the same time, the subframe of the positioning service is configured as one or more of the downlink subframes other than the PO, or the subframe of the positioning service is configured in the downlink subframe except the potential paging subframe. one or more.

10. Apparatus according to claim 8 wherein:

The configuration unit is configured to configure the subframe of the positioning service to be not with the PO as follows The same subframe: When the positioning service and the paging message are not in the same radio frame, the subframe of the positioning service is configured as one or more of the downlink subframes, or the subframe of the positioning service is configured as the PO number. Configuring one or more of the downlink subframes other than the frame, or configuring the subframe of the positioning service as one or more of the downlink subframes except the potential paging subframe;

The PO number subframe is a subframe that is the same as the PO subframe number.

11. Apparatus according to claim 9 wherein:

The configuration unit is configured to configure a subframe of the positioning service as one or more of the downlink subframes other than the PO as follows:

One or more of the downlink subframes other than the potential paging subframe are preferentially configured as subframes of the positioning service.

12. Apparatus according to claim 10 wherein:

The configuration unit is configured to configure a subframe of the positioning service as one or more of the downlink subframes, or configure the subframe of the positioning service into a downlink subframe other than the PO number subframe. one or more:

13. Apparatus according to any one of claims 8 to 12, wherein:

In the frequency division duplex (FDD) mode, the PO is one of the #0, #4, #5, and #9 subframes or the time division duplex (TDD) mode, where the PO is #0, #1. One or more of the #5 and #6 subframes.

14. Apparatus according to any one of claims 9 to 12, wherein:

In frequency division duplex (FDD) mode, the potential paging subframes are: #0, #4, #5, and #9 subframes;