CN102238636B - The method and system of network side configuration the used transmission block form of subscriber equipment reality - Google Patents

Abstract

The method that the invention discloses a kind of network side configuration used transmission block form of subscriber equipment reality, the method includes: network side respectively subscriber equipment (UE) and base station (NodeB) directly or indirectly configure transport block size (TBS) form actually used for UE. The invention also discloses the system of a kind of network side configuration used transmission block form of subscriber equipment reality, dispensing unit, directly or indirectly configure TBS form actually used for UE for network side respectively UE and NodeB. Adopt the method and system of the present invention, the problem that the TBS form that when can solve data transmit-receive, UE side and network side adopt is likely to not line up.

Description

Method and system for configuring transmission block table actually used by user equipment on network side

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method and system for configuring a transport block table actually used by a User Equipment (UE) on a network side.

Background

In a time division-synchronous code division multiple access (TD-SCDMA) system, High Speed Packet Access (HSPA) physical layer capabilities of a UE include: downlink high speed downlink shared channel (HS-DSCH) capability, and uplink enhanced uplink dedicated channel (E-DCH) capability; wherein the HS-DSCH physical layer capability has 30 capability grades, as shown in the following Table 1, Table 1 is a table of the HS-DSCH physical layer capability grades of the UE; the E-DCH physical layer capability has 6 capability levels, as shown in table 2 below, and table 2 is a table of E-DCH physical layer capability levels of the UE.

TABLE 1

E-DCH capabilities	Maximum number of E-DCH slots per TTI	Maximum number of E-DCH transport channel bits that can be received within one E-DCHTTI
			Capability 1	2	2754
Capability 2	3	4162
			Capability 3	2	5532
Capability 4	3	8348
			Capability 5	4	11160
Capability 6	5	11160

TABLE 2

The Transport Block Size (TBS) tables used by UEs with different physical layer capability levels are different, such TBS tables have 8 downlink channels, and one TBS table for every 3 capabilities. The corresponding relationship between the HS-DSCH physical layer capability and the used TBS table is: capabilities 1 through 3, capabilities 4 through 6, capabilities 7 through 9,.. and capabilities 22 through 24 correspond to the 8 TBS tables, respectively, capabilities 25, 26, and 27 correspond to the TBS tables used by capabilities 18, 21, and 24, respectively, and capabilities 28, 29, and 30 correspond to the TBS tables used by capabilities 18, 21, and 24, respectively. For example, the TBS table used by the UE with HS-DSCH physical layer capability classes 1 to 3 is shown in table 3 below, and table 3 is the TBS table corresponding to the UE with HS-DSCH physical layer capabilities of 1 to 3.

TB index	TB size [ bits ]]	TB index	TB size [ bits ]]	TB index	TB size [ bits ]]	TB index	TB size [ bits ]]
								0	NULL	16	432	32	816	48	1536
1	240	17	448	33	848	49	16002 -->
								2	248	18	464	34	880	50	1664

3	256	19	488	35	920	51	1728
								4	264	20	504	36	952	52	1800
5	280	21	528	37	992	53	1872
								6	288	22	544	38	1032	54	1944
7	304	23	568	39	1072	55	2024
								8	312	24	592	40	1120	56	2104
9	328	25	616	41	1160	57	2192
								10	336	26	640	42	1208	58	2280
11	352	27	664	43	1256	59	2376
								12	368	28	696	44	1312	60	2472
13	384	29	720	45	1360	61	2568
								14	400	30	752	46	1416	62	2672
15	416	31	784	47	1472	63	2784

TABLE 3

In the uplink, the TBS table has only one but 2 parts, the first part corresponding to E-DCH physical layer capabilities 1 and 2 and the second part corresponding to E-DCH physical layer capabilities 3 to 6. In actual use, each TBS determination may obtain a TBS value used by the current UE by querying a TBS table determined by the UE physical layer capability according to a transport format resource combination information (TFRI) value.

Since the TBS tables used by UEs with different capability levels in TD-SCDMA systems are different, this requires that the UE must also know clearly what capability level is being used by the current network side to ensure that the network side and the UE can select the correct TBS table. In the prior art, the selection of the TBS table is realized by reporting the capability of the UE, and the network side selects the TBS table corresponding to the capability of the UE according to the capability supported by the UE. The existing UE capability reporting is carried out through a radio resource control protocol (RRC) connection establishment completion message or a UE capability query message, after an enhanced Forward Access Channel (FACH) is introduced, for UE in a CELLFACH state, when the UE uses a public Radio Network Temporary Identifier (RNTI) for transmission, the UE adopts the default uplink 3 and downlink 9 capability levels defined in the prior art, and the UE reported capability levels are used after the RRC establishment is completed. Wherein the RNTI comprises a public H-RNTI and a public E-RNTI; H-RNTI refers to HS-DSCH radio network temporary identifier, E-RNTI refers to E-DCH radio network temporary identifier.

However, the drawbacks of the prior art selection of the TBS table based on UE capabilities are: the UE always reports its maximum capability, which is only known to the network side, and if the capability reported by the UE exceeds the capability supported by the network side, for example, after a Multiple Input Multiple Output (MIMO) technology and a 64 Quadrature Amplitude Modulation (QAM) technology are introduced, the maximum capability supported by the UE may exceed the maximum capability supported by the network side, so that the capability that the UE cannot report and use the capability supported by the network side occurs, which may cause a problem that TBS tables adopted by the UE side and the network side may not be aligned during data transceiving. At present, a configuration scheme of TBS tables is urgently needed to solve the problem that the TBS tables adopted by the UE side and the network side may not be aligned when data is received and transmitted.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a method and a system for configuring a TBS table actually used by a UE on a network side, which can solve the problem that the TBS tables used on the UE side and the network side may not be aligned when data is transmitted and received.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a method for configuring a transport block table actually used by user equipment on a network side includes: the network side indirectly or directly configures a Transport Block Size (TBS) table actually used by User Equipment (UE) and a base station (NodeB) for the UE respectively.

Wherein, when the network side is a Radio Network Controller (RNC), the method further comprises: and the RNC directly or indirectly configures the TBS table actually used by the UE for the UE through a radio resource control protocol (RRC) message.

Wherein, when the direct configuration mode is adopted, the method further comprises the following steps: the RNC carries the TBS table indication actually used by the UE in the RRC message and configures the TBS table indication to the UE;

when the indirect configuration mode is adopted, the method further comprises the following steps: the RNC carries the actual use capability of the UE in the RRC message and configures the capability to the UE; and the UE indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

Wherein, when the network side is the RNC, the method further comprises: and the RNC directly or indirectly configures the TBS table actually used by the UE for the NodeB through Iub port signaling.

Wherein, when the direct configuration mode is adopted, the method further comprises the following steps: the RNC carries TBS table indication actually used by the UE in an Iub port signaling and configures the TBS table indication to NodeB;

when the indirect configuration mode is adopted, the method further comprises the following steps: the RNC carries the actual using capability of the UE in the Iub port signaling and configures the capability to the NodeB; and the NodeB indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

A system for configuring a transport block table actually used by a user equipment on a network side, the system comprising: and the configuration unit is used for configuring the TBS table actually used by the UE for the UE and the NodeB indirectly or directly by the network side.

The configuration unit is further configured to configure, by the RNC, a TBS table actually used by the UE for the UE directly or indirectly through an RRC message.

The configuration unit is further configured to, when a direct configuration mode is adopted, carry, in an RRC message, a TBS table indication actually used by the UE, and configure the TBS table indication to the UE; or,

the configuration unit is further configured to, when an indirect configuration mode is adopted, carry, by the RNC, the capability actually used by the UE in the RRC message and configure the capability to the UE; and the UE indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

The configuration unit is further configured to configure, by the RNC, a TBS table actually used by the UE for the NodeB directly or indirectly through Iub interface signaling.

The configuration unit is further configured to, when a direct configuration mode is adopted, carry, in an Iub interface signaling, a TBS table indication actually used by the UE, and configure the TBS table indication to the NodeB; or,

the configuration unit is further configured to, when an indirect configuration mode is adopted, configure the RNC to carry the capability actually used by the UE in the Iub interface signaling and configure the RNC to the NodeB; and the NodeB indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

The network side of the invention configures the TBS table actually used by the UE for the UE and the base station (NodeB) indirectly or directly.

By adopting the invention, the UE and the NodeB can acquire the TBS table actually used by the UE, so that the problem that the TBS tables adopted by the NodeB at the UE side and the NodeB at the network side are possibly not aligned when data is transmitted and received can be solved.

Drawings

FIG. 1 is a schematic diagram of a first implementation of the method of the present invention;

fig. 2 is a schematic diagram of implementation of a second embodiment of the method of the present invention.

Detailed Description

The basic idea of the invention is: and the network side indirectly or directly configures the TBS table actually used by the UE for the UE and the NodeB respectively.

The following describes the embodiments in further detail with reference to the accompanying drawings.

A method for configuring TBS table actually used by UE at network side can directly or indirectly configure TBS table actually used by UE for UE and NodeB through RNC, said method mainly includes following contents:

firstly, the method comprises the following steps: for configuring the TBS table actually used by the UE for the UE, the RNC directly or indirectly configures the TBS table actually used by the UE to the UE through RRC messages such as RB establishment, RB reconfiguration, or cell update confirmation at an air interface.

II, secondly: for configuring the TBS table for the NodeB, the RNC directly or indirectly configures the TBS table actually used by the UE to the base station through Iub interface signaling such as radio link configuration and reconfiguration signaling.

The invention includes two modes of direct or indirect configuration when configuring the TBS table actually used by the UE:

firstly, the method comprises the following steps: when the direct configuration mode is adopted, the RNC directly configures the TBS table indication expected to be used by the UE to the UE and the NodeB, and the UE and the NodeB can directly acquire the TBS table actually used by the UE. The direct configuration is better than the indirect configuration, and the number of bits for configuration can be reduced because: the indirect configuration mode is to configure the capability of the UE, and the capability of the UE has 30, while the direct configuration mode is to configure the TBS table, which has only 8 TBS tables, and in contrast, the direct configuration mode obviously saves the configured bit number.

II, secondly: when the indirect configuration mode is adopted, the RNC configures the capability (category) that the UE wants to use first to the UE and the NodeB, and the UE and the NodeB need to obtain the TBS table actually used by the UE indirectly through the capability.

That is, the present invention is configured to either UE or NodeB, and the modes adopted in the configuration include a direct configuration mode and a direct configuration mode. In terms of a direct configuration mode, a TBS table actually used by the UE is directly indicated and configured to the UE or the NodeB; for the direct configuration mode, the category actually used by the UE is indirectly indicated and configured to the UE or the NodeB, and then the UE and the base station obtain the TBS table actually used by the UE through the category by using the prior art.

Further, since the TBS table of the UE has two types, i.e., an 8-bit alignment table and a bit alignment table (not 8-bit alignment), the UE may also be indicated in the RRC message to use the 8-bit alignment table or the non-8-bit alignment table.

In summary, in the scheme for configuring the TBS table actually used by the UE on the network side provided by the present invention, the same TBS tables are respectively configured for the UE and the NodeB in the network side through the RNC, so that the UE and the NodeB in the network side can know the actual exact capability of the other side, and the network side can determine the TBS table actually used by the UE according to the actual need, instead of receiving and using the TBS table corresponding to the maximum capability reported by the UE, thereby solving the problem that the TBS tables are not aligned when the capability reported by the UE exceeds the capability supported by the network side. In addition, in the prior art, when the actual configuration resource of the network side is relatively small, if the UE and the network side still use the TBS table corresponding to the maximum capability, a problem may occur that the TBS interval is relatively large, which may result in that the data scheduling efficiency is not economical. By adopting the invention, the network side can determine the TBS table actually used by the UE according to the actual requirement, thereby solving the problem that the scheduling efficiency is not economical.

The invention is illustrated below.

The first embodiment of the method comprises the following steps: the RNC configures the TBS table desired to be actually used by the UE to an embodiment of the UE through an RRC message. As shown in fig. 1, the procedure of configuring, by the RNC, the UE with the TBS table or capability that the UE wants to actually use by the RNC through RRC message includes the following steps:

step 101: the RNC carries the TBS table or the capability which is expected to be actually used by the UE through the RRC message to configure the UE.

Here, the RRC message may be an RRC message such as RB configuration, RB reconfiguration, or cell update confirmation.

Here, the RNC may perform the configuration in step 101 in two ways, one being: as for the RRC message carrying the capability, the TBS table used by the UE may be indirectly indicated by configuring a capability (category) actually used by the UE in the RRC message during configuration, which is implemented by using the prior art described in the background art and is not described herein again; II, secondly: for the RRC message carrying the table, the TBS table used by the UE is directly indicated in the RRC message.

When the RNC is configured with the capability of the UE, the configured capability information element is shown in table 4 below. The capability information element is part of the RRC message structure.

Cell	Type (B)	Version(s)
			HS-DSCH physical layer capability	Integer (1..30) each number represents a capability	REL-8
E-DCH physical layer capabilities	Integer (1..6) each number represents a capability	REL-8

TABLE 4

When the configured TBS table of the RNC is indicated for the UE, the configured TBS table indication cell is as shown in table 5 below. The TBS table indicates that the information element is also part of the RRC message structure.

Cell	Type (B)	Version(s)
			TBS table indication for HSDPA use	Integer (1..8) each number represents a TBS table	REL-8
TBS table indication for HSUPA	Integer (1..2) each number represents a TBS table	REL-8

TABLE 5

Further, since the TBS table of the UE has two types, namely, an 8-bit alignment table and a bit alignment table, the UE may also be indicated in the RRC message to use the 8-bit alignment table or the non-8-bit alignment table. Wherein, the bit alignment table is also called as non-8 bit alignment table.

The second method embodiment: the RNC configures the TBS table which is expected to be actually used by the UE to the NodeB through Iub port signaling. As shown in fig. 2, the procedure of configuring the desired UE capability or TBS table to the base station by the RNC through the Iub interface includes the following steps:

step 201: the RNC is configured to the NodeB by Iub-port signaling carrying the capability or TBS table that the UE is expected to actually use.

Here, the Iub port signaling may be Iub port signaling such as radio link configuration or radio link reconfiguration.

Here, in step 201, there are two ways for the RNC to perform the configuration, one being: for the Iub interface signaling carrying the capability, the TBS table used by the UE can be indirectly indicated by configuring the category actually used by the UE during configuration; the method is realized by adopting the prior art described in the background technology, and is not described in detail herein; II, secondly: to the extent that the table is carried in Iub-port signaling, the TBS table used by the UE is directly indicated in the Iub-port signaling.

When the RNC is configured with the capability of the UE, the configured capability information element is shown in table 6 below. Part of the capability cell Iub-port signaling structure.

Cell	Type (B)
		HS-DSCH physical layer capability	Integer (1..30) each number represents a capability
E-DCH physical layer capabilities	Integer (1..6) each number represents a capability

TABLE 6

When the configured TBS table of the RNC is indicated for the UE, the configured TBS table indication information element is shown in table 7 below. The TBS table indicates that the cell is also part of the Iub port signaling structure.

Cell	Type (B)
		TBS table indication for HSDPA use	Integer (1..8) each number represents a TBS table
TBS table indication for HSUPA	Integer (1..2) each number represents a TBS table

TABLE 7

Further, since the TBS table of the UE has two types, i.e., an 8-bit alignment table and a bit alignment table, the UE may also be indicated to use the 8-bit alignment table or a non-8-bit alignment table in the signaling of the Iub interface. Wherein, the bit alignment table is also called as non-8 bit alignment table.

A system for configuring a TBS table actually used by a UE on a network side, the system comprising: and the configuration unit is used for configuring the TBS table actually used by the UE for the UE and the NodeB indirectly or directly by the network side.

For configuring the UE, the configuration unit is further configured to directly or indirectly configure, by the RNC, the TBS table actually used by the UE for the UE through an RRC message.

Here, the configuration unit is further configured to, when the direct configuration mode is adopted, carry, in the RRC message, a TBS table indication actually used by the UE, and configure the TBS table indication to the UE;

or, the configuration unit is further configured to, when the indirect configuration mode is adopted, the RNC carries the capability actually used by the UE in the RRC message and configures the capability to the UE; the UE indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

For configuring the NodeB, the configuration unit is further configured to configure, directly or indirectly, the TBS table actually used by the UE for the NodeB through Iub interface signaling by the RNC.

Here, the configuration unit is further configured to, when a direct configuration mode is adopted, carry, in an Iub interface signaling, a TBS table indication actually used by the UE and configure the TBS table indication to the NodeB;

or, the configuration unit is further configured to, when an indirect configuration mode is adopted, configure the RNC to carry the capability actually used by the UE in the Iub interface signaling and configure the RNC to the NodeB; the NodeB indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (6)

1. A method for configuring a transport block table actually used by user equipment on a network side is characterized by comprising the following steps: a network side indirectly or directly configures a Transport Block Size (TBS) table actually used by User Equipment (UE) and a base station (NodeB) for the UE respectively;

wherein the TBS table corresponds to a downlink high speed downlink shared channel (HS-DSCH) capability and an uplink enhanced uplink dedicated channel (E-DCH) capability of the UE;

when the network side is a Radio Network Controller (RNC), the method further comprises: the RNC directly or indirectly configures a TBS table actually used by the UE for the UE through a radio resource control protocol (RRC) message;

wherein, when the direct configuration mode is adopted, the method further comprises the following steps: the RNC carries a TBS table indication actually used by the UE in an RRC message and configures the TBS table indication to the UE, wherein the configured TBS table indication cell comprises a TBS table indication used by HSDPA and a TBS table indication used by HSUPA;

when the indirect configuration mode is adopted, the method further comprises the following steps: the RNC carries the actual use capability of the UE in the RRC message and configures the capability information element to the UE, wherein the configured capability information element comprises HS-DSCH physical layer capability and E-DCH physical layer capability; and the UE indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

2. The method of claim 1, wherein when the network side is an RNC, the method further comprises: and the RNC directly or indirectly configures the TBS table actually used by the UE for the NodeB through Iub port signaling.

3. The method of claim 2, wherein in the direct configuration mode, the method further comprises: the RNC carries TBS table indication actually used by the UE in an Iub port signaling and configures the TBS table indication to NodeB;

when the indirect configuration mode is adopted, the method further comprises the following steps: the RNC carries the actual using capability of the UE in the Iub port signaling and configures the capability to the NodeB; and the NodeB indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

4. A system for configuring a transport block table actually used by a user equipment on a network side, the system comprising: a configuration unit, configured to configure, on the network side, a TBS table actually used by the UE indirectly or directly for the UE and the NodeB;

wherein the TBS table corresponds to a downlink high speed downlink shared channel (HS-DSCH) capability and an uplink enhanced uplink dedicated channel (E-DCH) capability of the UE;

the configuration unit is further configured to configure, by the RNC, a TBS table actually used by the UE for the UE directly or indirectly through an RRC message;

the configuration unit is further configured to, when a direct configuration mode is adopted, carry, by the RNC, a TBS table indication actually used by the UE in an RRC message and configure the TBS table indication to the UE, where the configured TBS table indication cell includes a TBS table indication used by HSDPA and a TBS table indication used by HSUPA; or,

the configuration unit is further configured to, when an indirect configuration mode is adopted, carry the capability actually used by the UE in the RRC message and configure the capability to the UE, where the configured capability information element includes HS-DSCH physical layer capability and E-DCH physical layer capability; and the UE indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.

5. The system of claim 4, wherein the configuration unit is further configured to configure, by the RNC, a TBS table actually used by the UE for the NodeB directly or indirectly through Iub interface signaling.

6. The system according to claim 5, wherein said configuration unit is further configured to, when the direct configuration mode is adopted, carry, in Iub interface signaling, a TBS table indication actually used by the UE and configure the TBS table indication to the NodeB; or,

the configuration unit is further configured to, when an indirect configuration mode is adopted, configure the RNC to carry the capability actually used by the UE in the Iub interface signaling and configure the RNC to the NodeB; and the NodeB indirectly obtains the TBS table actually used by the UE through the capability actually used by the UE.