CN101965018A

CN101965018A - Control method for accessing multiple-carrier high-speed uplink groups

Info

Publication number: CN101965018A
Application number: CN2009101576120A
Authority: CN
Inventors: 范晨; 沈东栋; 魏立梅; 王大飞; 王浩然; 贺刚
Original assignee: TD Tech Ltd
Current assignee: TD Tech Ltd
Priority date: 2009-07-21
Filing date: 2009-07-21
Publication date: 2011-02-02
Anticipated expiration: 2029-07-21
Also published as: CN101965018B

Abstract

The invention discloses a control method for accessing multiple-carrier high-speed uplink groups. The method comprises that: when user equipment (UE) supporting multiple carriers needs accessing network, the UE selects a random access uplink control channel (E-RUCCH) from monitored carrier information, and sends scheduling information (SI) to a network by using the E-RUCCH; after the UE accesses the network, the network allocates activating carriers and monitoring carriers for the UE according to the SI; a frequency-shared carrier list of the monitoring carriers is sent to the UE; scheduling information of carrier information which carries the activating carriers and/or activated monitoring carriers is transmitted to the UE by using absolute grant channels (AGCH); the UE performs synchronous/asynchronous detection on the current activating carriers by using the carries as units, and reports synchronous/asynchronous information by using the carries as units; and the UE determines the activating carriers and/or activated monitoring carriers, sends physical uplink channel (E-PUCH) data on the carries, and feeds back the SI of the determined carries and the serving and neighbour cell pathloss (SNPL) of unactivated monitoring carries by using the determined carries. The control method realizes control of multiple-carrier high speed uplink packet access (HSUPA).

Description

Control method for multi-carrier high-speed uplink packet access

Technical Field

The invention relates to a High Speed Uplink Packet Access (HSUPA) technology in a TDSCDMA system, in particular to a control method of multi-carrier HSUPA.

Background

At present, in order to support the application of high-speed packet service, a multi-carrier technology is introduced in the TD-SCDMA system, so that the UE can simultaneously use multiple carriers to transmit and receive data. Therefore, the peak rate of a single user of the packet service can be improved by the change of the carrier binding and the minimization, and the scheduling flexibility is embodied by the expansion of resources, so that the packet service can be better supported, and the requirement of an operator on the high-speed packet data service is met.

However, the High Speed Uplink Packet Access (HSUPA) technology in the TD-SCDMA system only supports single carrier transmission at present, and the HSUPA initial access procedure designed for single carrier does not involve the selection process of multiple carriers, so the existing control method of HSUPA cannot be applied to the TD-SCDMA system introduced with the multiple carrier technology.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a control method for multi-carrier HSUPA, which is suitable for TD-SCDMA systems that introduce multi-carrier technology.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a control method for multi-carrier high-speed uplink packet access comprises the following steps:

a. when User Equipment (UE) supporting multiple carriers needs to access a network, the UE selects one E-RUCCH from E-RUCCH carrier information monitored in a broadcast message, measures a serving cell and neighbor cell path loss value (SNPL) of the carrier according to an intra-frequency neighbor cell list of the carrier monitored in the broadcast message, and sends scheduling request information (SI) containing the measured carrier information with the largest SNPL to a network side by using the selected E-RUCCH;

b. after the UE accesses the network, a network side configures an activated carrier and a monitored carrier for the UE according to the received scheduling request information and informs the UE; the network side sends the same-frequency carrier list of the monitoring carriers to the UE through a high-level signaling; the network side sends scheduling information carrying the carrier information of the activated carrier and/or the activated monitoring carrier to the UE by utilizing the AGCH;

c. the UE carries Out synchronization/Out-of-synchronization detection on the current activated carrier by taking the carrier as a unit, and reports In SYNC or Out-of SYNC to the UE high level or the network side by taking the carrier as a unit; the UE determines the activated carrier and/or the activated monitoring carrier according to the scheduling information monitored on the AGCH, transmits E-PUCH data on the determined carrier, and feeds back the determined SI of the carrier to a network side by using the determined E-PUCH or E-RUCCH on the carrier; and monitoring the SNPL of the inactivated monitoring carrier according to the same-frequency carrier list of the monitoring carrier, and feeding back the SNPL of the inactivated monitoring carrier to a network side by using the determined E-PUCH or E-RUCCH on the carrier or the E-RUCCH of the inactivated monitoring carrier.

Preferably, the step b of sending the SI to the network side by using the selected E-RUCCH is:

sending the SI to a base station by using the selected E-RUCCH and adopting a combination mode of a first signaling format and a third signaling format, a combination mode of the first signaling format and a second signaling format, a combination mode of the first signaling format and a fourth signaling format or a traditional SI signaling format, wherein the carrier information with the maximum SNPL is carried by the second signaling format, the third signaling format or the fourth signaling format;

the first signaling format comprising a total enhanced dedicated channel memory state (TEBS) field, a highest priority logical channel memory state (HLBS) field, and a highest priority logical channel identification (HLID) field;

the second signaling format comprises a carrier identification field, an SNPL field and a UPH field;

the third signaling format comprising an SNPL field and a UE Power Headroom (UPH) field;

and the fourth signaling format comprises a carrier identification field and an SNPL field.

Preferably, the selection in step a is: randomly or according to the priority of the carrier.

Preferably, the carrier information in step b is carrier number information, and the representation mode of the carrier number information is a sequential number or a bitmap mode.

Preferably, the carrier information in the scheduling information in step b is carried by a reserved field and a second dedicated information field in the AGCH.

Preferably, the carrier information in the scheduling information is carried by the reserved field and the second dedicated information field in the AGCH as:

when the padding bits of the domain flag field in the AGCH are 00, indicating the activated carrier and/or the monitored carrier that has been activated by using the bits in the reserved field and the fourth and fifth bits in the second dedicated information field;

when the padding bits of the domain flag field in the AGCH are 01, 10 or 11, indicating the activated carrier and/or the monitored carrier that has been activated by using any one or more bits of the bits in the reserved field and the second dedicated information field.

Preferably, the indication of the activated carrier and/or the activated monitoring carrier by using the bit in the reserved field and the fourth bit and the fifth bit in the second dedicated information field is:

utilizing a bit in the reserved domain and a fourth bit and a fifth bit in a second dedicated information domain to carry the carrier identification of the activated carrier and/or the activated monitoring carrier;

or, the activated carrier and/or the activated monitoring carrier are/is indicated by using a bit in the reserved field and a fourth bit and a fifth bit in a second dedicated information field, wherein each bit corresponds to one carrier.

Preferably, the scheduling information in step b further carries a training sequence (Midamble) allocation manner, where the Midamble allocation manner is a conventional single-stream Midamble allocation manner, a conventional MIMO Midamble allocation manner sub-table one, a sub-table two in a conventional multiple-input multiple-output (MIMO) Midamble allocation manner, or a new allocation manner; indicating the Midamble allocation manner and the application type of the scheduling information by using a combination manner of a domain flag field and the second dedicated information field in the AGCH or a domain flag field, wherein the new allocation manner is as follows: the conventional default Midamble table containing K midambles is split into four sub-tables, and the mapping relationship between the Midamble shift codes and the spreading codes in each sub-table is the same as that in the conventional default Midamble table having the same number of midambles as that in the sub-table.

Preferably, the indication of the Midamble allocation manner and the application type of the scheduling information in step b is as follows:

when the padding bit of the domain mark domain is 00, indicating that the scheduling information is used for dynamic resource allocation, wherein the allocation mode of the Midamble is a traditional single-stream Midamble allocation mode;

when the padding bits of the field flag field are 01, indicating that the scheduling information is used for the configuration of the semi-persistent scheduling resources, and indicating a Midamble allocation manner by using any two or three bits of a first bit, a second bit and a third bit in a second dedicated information field,

wherein, when the Midamble allocation is indicated by two bits, the indication is: when the two bits are 00, indicating that the Midamble allocation mode is a traditional single-stream Midamble allocation mode, when the two bits are 01, indicating that the Midamble allocation mode is a first sub-table in a traditional MIMOMidable allocation mode, and when the two bits are 10, indicating that the Midamble allocation mode is a second sub-table in a traditional MIMO Midamble allocation mode;

when the Midamble allocation is indicated by three bits, the indication is: when the three bits are 000, indicating that the Midamble allocation mode is a traditional single-stream Midamble allocation mode, when the three bits are 001, indicating that the Midamble allocation mode is a new Midamble allocation mode and using a first sub-table, when the three bits are 010, indicating that the Midamble allocation mode is the new Midamble allocation mode and using a second sub-table, when the three bits are 011, indicating that the Midamble allocation mode is the new Midamble allocation mode and using a third sub-table, and when the three bits are 100, indicating that the Midamble allocation mode is the new Midamble allocation mode and using a fourth sub-table;

when the padding bit of the domain flag field is 10, indicating that the scheduling information is used for dynamic resource allocation, wherein the allocation mode of the Midamble is a sub-table one in the traditional MIMO Midamble allocation mode;

and when the padding bits of the field flag field are 11, indicating that the scheduling information is used for dynamic resource allocation, wherein the allocation mode of the Midamble is a sub-table two in a traditional MIMO Midamble allocation mode.

Preferably, in the step c, according to a combination manner of the first signaling format and the second signaling format, or a combination manner of the first signaling format and the fourth signaling format, or a combination manner of the first signaling format, the second signaling format and the third signaling format, or a combination manner of the first signaling format, the fourth signaling format and the third signaling format, the determined SI of the carrier is fed back to a network side by using the E-pucch or the E-RUCCH on the carrier;

according to the fourth signaling format, feeding back the SNPL of the inactivated monitored carrier to a network side by using the determined E-PUCH or E-RUCCH on the carrier or the E-RUCCH of the inactivated monitored carrier;

wherein the first signaling format comprises a total enhanced dedicated channel memory state (TEBS) field, a highest priority logical channel memory state (HLBS) field, and a highest priority logical channel identification (HLID) field;

In summary, the present invention provides a control method of multi-carrier HSUPA, which is suitable for TD-SCDMA systems with multi-carrier technology introduced.

Drawings

FIG. 1 is a schematic flow chart according to an embodiment of the present invention.

Detailed Description

The main idea of the invention is that aiming at a TD-SCDMA system introducing a multi-carrier technology, the multi-carrier used by UE is configured in the UE access process, and the carrier which can be supported by the UE is monitored after the access, thereby realizing the control of the multi-carrier HSUPA.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic flow chart according to a first embodiment of the present invention. As shown in fig. 1, the first embodiment of the present invention mainly includes the following steps:

step 101, when a UE supporting multiple carriers needs to access a network, the UE selects an E-RUCCH from enhanced dedicated channel random access uplink control channel (E-RUCCH) carrier information monitored in a broadcast message, measures SNPL of the carrier according to an intra-frequency neighbor cell list of the carrier monitored in the broadcast message, and sends scheduling request information (SI) including the measured carrier information with the largest SNPL to a network side by using the selected E-RUCCH.

Here, since the system introduces the multi-carrier technology, the UE can support multiple carriers, and accordingly, the UE can listen to multiple E-RUCCH carrier information, so that the UE needs to select one E-RUCCH from the E-RUCCH carrier information and use the E-RUCCH carrier information to transmit the scheduling request information.

The specific method for selecting the E-RUCCH may be determined by those skilled in the art according to actual needs, and for example, a random selection method or a selection method according to the priority of the carrier may be adopted.

In this step, the UE further needs to measure the SNPL of the carrier in the carrier information monitored in the broadcast message, and report the carrier with the largest measured SNPL (i.e., the carrier with the best SNPL) to the network side when sending the scheduling request information, so that the network side schedules the UE according to the information (i.e., configures the carrier with the best SNPL to the UE in the subsequent process).

In this step, the selected E-RUCCH is used to send the SI, which may be sent to the base station according to the conventional SI signaling format.

The conventional SI signaling format is shown in table 1:

SNPL

UPH

TEBS

HLBS

HLID

TABLE 1

The SI information shown in table 1 includes the following five information items:

(1) SNPL (serving cell and neighbor cell path loss information) length of 5 bits

(2) UPH (UE Power headroom) of 5 bits length

(3) TEBS (Total enhanced dedicated channel memory State) length of 5 bits

(4) HLBS (highest priority logical channel memory State) length of 4 bits

(5) HLID (highest priority logical channel identification) with length of 4 bits

In practical application, the SI may be sent according to a combination manner of a first signaling format and a third signaling format, a combination manner of a first signaling format and a second signaling format, or a combination manner of a first signaling format and a fourth signaling format; wherein,

the first signaling format is used for indicating the memory information of the UE, and comprises a TEBS domain, an HLBS domain and an HLID domain; the third signaling format comprises a SNPL domain and a UPH domain;

The second signaling format, the third signaling format and the fourth signaling format are all used for indicating carrier information, and this step is used for indicating the carrier information with the largest SNPL measured by the UE.

It should be noted that, the third signaling format does not have a carrier identification field, and when the signaling format is utilized, the carrier carrying the SI is the carrier with the largest SNPL measured by the UE. That is, when the E-RUCCH is selected according to the selection method with the best SNPL value in this step, the SI can be transmitted using this signaling format.

In practical applications, what manner is specifically adopted to transmit the SI may be determined by a manner predefined in the protocol.

Step 102, after the UE accesses the network, a network side configures an activated carrier and a monitored carrier for the UE according to the received scheduling request information and notifies the UE; the network side sends the same-frequency carrier list of the monitoring carriers to the UE through a high-level signaling; and the network side transmits scheduling information carrying the carrier information of the activated carrier and/or the activated monitoring carrier to the UE by utilizing an enhanced dedicated channel Absolute Grant Channel (AGCH).

In this step, an entity (radio network controller or RNC) in the network configures an active carrier and a monitor carrier for the UE according to the received SI information of the UE, and then the UE may send information on the active carrier and needs to monitor the SNPL of the monitor carrier.

In this step, the network side (base station) schedules the UE on the AGCH, and the specific scheduling is as follows: the scheduling information is sent to the UE by using the AGCH, and different from the scheduling information in the existing scheme, the scheduling information carries carrier information of the activated carrier and/or the activated monitoring carrier, so that the UE performs data transmission and SI feedback on the carriers according to the carrier information.

Here, it should be noted that, in practical application, if the scheduling information carries information of an activated monitoring carrier, the UE monitors the monitoring carrier on the AGCH, and at this time, the UE may know that the monitoring carrier is activated according to a preset activation policy of the monitoring carrier, and then, the UE performs the same monitoring operation as that of the activated monitoring carrier in a subsequent step. The activation strategy for monitoring the carrier can have the following three forms:

1) the network side informs the activated monitoring carrier of the UE through a high-level signaling in advance;

2) the system is agreed with the UE in advance: as long as the UE monitors the monitored carrier in the scheduling information of the AGCH, the carrier is considered to be activated;

3) after the UE accesses the network, the NodeB activates the inactivated carrier and releases the activated carrier through HS-SCCH order signaling or AGCH order signaling, so that the UE can acquire the activated monitoring carrier according to the high-speed downlink shared control channel (HS-SCCH) order signaling or AGCH order signaling.

In this step, the carrier information in the scheduling information is the number information of the carrier, and the representation mode of the number information of the carrier is a sequence number or a bitmap mode.

In practical applications, the carrier information may be carried by the reserved field and the second dedicated information field in the AGCH, and preferably, the following method may be adopted:

when the padding bits of the domain flag field in the AGCH are 00, the activated carrier and/or the activated monitoring carrier are indicated by using the bits in the reserved field and the fourth bit and the fifth bit in the second dedicated information field, which may specifically be indicated by using the following method:

utilizing a bit in the reserved domain and a fourth bit and a fifth bit in a second dedicated information domain to carry the carrier identification of the activated carrier and/or the activated monitoring carrier; this indication method will only indicate one carrier per AGCH, so when the active carrier and/or the activated monitoring carrier are multiple carriers, multiple AGCHs need to be sent simultaneously.

Or, a bitmap manner is adopted, that is, each bit in the reserved field and the fourth bit and the fifth bit in the second dedicated information field corresponds to one carrier; the indication method can realize that one AGCH indicates a plurality of carriers simultaneously, and the mapping relation between bits and carriers can be determined by the system and the UE in advance.

Here, two bits or three bits in the second dedicated information field may be selected to indicate the activated carrier and/or the monitored carrier that has been activated.

In practical applications, the scheduling information in step 102 may further carry a training sequence (Midamble) allocation manner, where the Midamble allocation manner may be a conventional single-stream Midamble allocation manner, a conventional MIMO Midamble allocation manner sub-table one, a conventional multi-input multi-output (MIMO) Midamble allocation manner sub-table two, or a new allocation manner.

Here, since the conventional single-stream Midamble allocation method, the conventional MIMO Midamble allocation method sub-table i, and the conventional multiple-input multiple-output (MIMO) Midamble allocation method sub-table ii are known to those skilled in the art, they are not described herein again.

The new distribution mode is as follows: the conventional default Midamble table containing K midambles is split into four sub-tables, and the mapping relationship between the Midamble shift codes and the spreading codes in each sub-table is the same as that in the conventional default Midamble table having the same number of midambles as that in the sub-table.

Here, the specific method carrying the Midamble allocation manner may be implemented in a manner of combining with a domain flag field for indicating an application type of the scheduling information, that is, a combination manner of the domain flag field in the AGCH and the second dedicated information field or a domain flag field is used to indicate the Midamble allocation manner and the application type of the scheduling information, where the application type of the information is used for configuring the semi-persistent scheduling resource or for configuring the dynamic resource.

Preferably, the method for indicating the Midamble allocation manner and the application type of the scheduling information may be:

In practical applications, the method is not limited to indicating the allocation manner of midambles.

In addition, in practical application, the uplink carrier resource may be notified to the UE by using the AGCH, and the downlink carrier resource may be notified to the UE by using the HS-SCCH, and the specific notification method using the HS-SCCH is similar to that of the AGCH, and is not described herein again.

103, the UE performs synchronization/Out-of-synchronization detection on the current activated carrier by taking the carrier as a unit, and reports In sync or Out-of sync to the UE high layer or the network side by taking the carrier as a unit; the UE determines the activated carrier and/or the activated monitoring carrier according to the scheduling information monitored on the AGCH, transmits enhanced dedicated channel physical uplink channel (E-PUCH) data on the determined carrier, and feeds back the determined SI of the carrier to a network side by using the determined E-PUCH or E-RUCCH on the carrier; and monitoring the SNPL of the inactivated monitoring carrier according to the same-frequency carrier list of the monitoring carrier, and feeding back the SNPL of the inactivated monitoring carrier to a network side by using the determined E-PUCH or E-RUCCH on the carrier or the E-RUCCH of the inactivated monitoring carrier.

In practical application, after the UE accesses the network, the system may configure or release the active carrier through a high-level signaling or through an HS-SCCH order signaling or an AGCH order signaling, so that the active carrier in the system is in a dynamic change.

In this step, the UE needs to perform synchronization/Out-of-synchronization detection on the currently active carrier In units of carriers, and the UE high layer or the network side performs statistics according to the In sync or Out-of sync reported by the UE physical layer, so as to monitor the carriers, specifically, if the counted In sync and Out-of-sync number exceeds a preset value, a carrier failure or a radio link failure is triggered. The carrier failure is a radio link failure process processing performed in units of carriers, and the method is the same as the original single carrier radio link failure mode, which is known by those skilled in the art and will not be described herein again.

Here, in practical applications, the determined SI of the carrier may be fed back to a network side by using the E-PUCH or E-RUCCH on the determined carrier according to a combination manner of the first signaling format and the second signaling format, or a combination manner of the first signaling format and the fourth signaling format, or a combination manner of the first signaling format, the second signaling format and the third signaling format, or a combination manner of the first signaling format, the fourth signaling format and the third signaling format;

the second signaling format includes a carrier identification field, an SNPL field, and a UPH field, and the carrier information of the activated carrier may be reported using the second signaling format.

The third signaling format is not used to carry carrier identification information, and therefore is used to indicate carrier information of the carrier that transmits the SI information.

Here, the fourth signaling format is mainly used for indicating the SNPL of the monitoring carriers that are not activated, and since these monitoring carriers are not activated in practical application, the UE cannot measure the UPH information thereof, and accordingly does not need to report the UPH information to the network side.

In practical application, the local carrier information or other carrier information carried in the E-pucch or E-RUCCH, that is, which SI signaling format is adopted in the E-pucch or E-RUCCH, may be defined by a preset relationship in a protocol, and for the E-PUCH, which SI signaling format and the number of signaling formats are adopted may also be indicated by a carrying bit information field in an MAC-i header, the signaling format without a carrier identification field must be the carrier information indicating the local carrier, and the formats with other carrier identification fields indicate which carrier the carrier information carried by the carrier information is by the carrier identification field.

It should be noted that the length of each domain in the first signaling format, the second signaling format, the third signaling format, and the fourth signaling format related in this embodiment may be the same as the length of the corresponding domain in the conventional SI format, or may be set to different lengths as needed.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for multi-carrier high-speed uplink packet access is characterized by comprising the following steps:

2. The method of claim 1, wherein the step b of sending SI to the network side by using the selected E-RUCCH comprises:

3. The method according to claim 1, wherein the selection in step a is: randomly or according to the priority of the carrier.

4. The method of claim 1,

the carrier information in the step b is number information of carriers, and the representation mode of the number information of the carriers is a sequential number or a bitmap mode.

5. The method according to claim 1, wherein the carrier information in the scheduling information in step b is carried by a reserved field and a second dedicated information field in the AGCH.

6. The method of claim 5, wherein the carrier information in the scheduling information is carried by a reserved field and a second dedicated information field in the AGCH as:

7. The method according to claim 6, wherein the indication of the activated carrier and/or the monitored carrier that has been activated using the bit in the reserved field and the fourth bit and the fifth bit in the second dedicated information field is:

8. The method of claim 1, wherein the scheduling information in step b further carries a training sequence (Midamble) allocation manner, and the Midamble allocation manner is a conventional single-stream Midamble allocation manner, a conventional MIMO Midamble allocation manner sub-table one, a sub-table two in a conventional multiple-input multiple-output (MIMO) Midamble allocation manner, or a new allocation manner; indicating the Midamble allocation manner and the application type of the scheduling information by using a combination manner of a domain flag field and the second dedicated information field in the AGCH or a domain flag field, wherein the new allocation manner is as follows: the conventional default Midamble table containing K midambles is split into four sub-tables, and the mapping relationship between the Midamble shift codes and the spreading codes in each sub-table is the same as that in the conventional default Midamble table having the same number of midambles as that in the sub-table.

9. The method according to claim 8, wherein the application type indicating the Midamble allocation manner and the scheduling information in step b is:

10. The method of claim 1, wherein in step c, according to a combination of the first signaling format and the second signaling format, or a combination of the first signaling format and a fourth signaling format, or a combination of the first signaling format, the second signaling format and the third signaling format, or a combination of the first signaling format, the fourth signaling format and the third signaling format, the determined SI of the carrier is fed back to a network side by using E-pucch or E-RUCCH on the determined carrier;